/* ===== BASE RESPONSIVE STYLES ===== */
        * {
            box-sizing: border-box;
            -webkit-tap-highlight-color: transparent;
        }
        
        html {
            font-size: 16px;
            -webkit-text-size-adjust: 100%;
            -ms-text-size-adjust: 100%;
        }
        
        body {
            overflow-x: hidden;
            width: 100%;
            max-width: 100vw;
        }
        
        /* ===== ANIMATIONS ===== */
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(15px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .animate-fade-in {
            animation: fadeIn 0.5s cubic-bezier(0.4, 0, 0.2, 1) forwards;
        }
        
        @keyframes shimmer {
            0% { background-position: -1000px 0; }
            100% { background-position: 1000px 0; }
        }
        
        .skeleton {
            background: linear-gradient(
                90deg,
                #f0f0f0 25%,
                #e0e0e0 50%,
                #f0f0f0 75%
            );
            background-size: 1000px 100%;
            animation: shimmer 2s infinite linear;
        }
        
        .dark .skeleton {
            background: linear-gradient(
                90deg,
                #374151 25%,
                #4b5563 50%,
                #374151 75%
            );
            background-size: 1000px 100%;
        }
        
        /* ===== SHADOWS ===== */
        .shadow-lg-up {
            box-shadow: 0 -4px 6px -1px rgba(0, 0, 0, 0.1), 0 -2px 4px -1px rgba(0, 0, 0, 0.06);
        }
        
        /* ===== CUSTOM SCROLLBAR ===== */
        .custom-scrollbar::-webkit-scrollbar {
            width: 6px;
        }
        .custom-scrollbar::-webkit-scrollbar-track {
            background: transparent;
        }
        .custom-scrollbar::-webkit-scrollbar-thumb {
            background-color: #cbd5e1;
            border-radius: 3px;
        }
        .dark .custom-scrollbar::-webkit-scrollbar-thumb {
            background-color: #4b5563;
        }
        
        /* ===== MARKDOWN STYLES ===== */
        .prose p { margin-bottom: 0.5em; }
        .prose ul { list-style-type: disc; padding-left: 1.2em; margin-bottom: 0.5em; }
        .prose strong { font-weight: 700; }
        
        /* ===== SAFE AREA PADDING FOR NOTCHED DEVICES ===== */
        .pb-safe {
            padding-bottom: env(safe-area-inset-bottom, 16px);
        }
        .pt-safe {
            padding-top: env(safe-area-inset-top, 0px);
        }
        
        /* ===== TOUCH-FRIENDLY ELEMENTS ===== */
        button,
        .touch-target,
        input[type="checkbox"],
        input[type="radio"],
        label {
            min-height: 44px;
            min-width: 44px;
        }
        
        input[type="checkbox"],
        input[type="radio"] {
            min-height: 20px;
            min-width: 20px;
        }
        
        /* ===== RESPONSIVE TYPOGRAPHY ===== */
        .text-responsive-xs {
            font-size: clamp(0.625rem, 2vw, 0.75rem);
        }
        .text-responsive-sm {
            font-size: clamp(0.75rem, 2.5vw, 0.875rem);
        }
        .text-responsive-base {
            font-size: clamp(0.875rem, 3vw, 1rem);
        }
        .text-responsive-lg {
            font-size: clamp(1rem, 3.5vw, 1.125rem);
        }
        .text-responsive-xl {
            font-size: clamp(1.125rem, 4vw, 1.25rem);
        }
        .text-responsive-2xl {
            font-size: clamp(1.25rem, 5vw, 1.5rem);
        }
        .text-responsive-3xl {
            font-size: clamp(1.5rem, 6vw, 1.875rem);
        }
        
        /* ===== MOBILE-FIRST MEDIA QUERIES ===== */
        
        /* Extra small devices (phones, less than 375px) */
        @media screen and (max-width: 374px) {
            html {
                font-size: 14px;
            }
            
            .header-title {
                font-size: 1rem !important;
                max-width: 100px;
            }
            
            .header-actions {
                gap: 0.25rem !important;
            }
            
            .header-actions button,
            .header-actions a {
                padding: 0.375rem !important;
            }
            
            .header-actions span {
                display: none !important;
            }
            
            .topic-grid-mobile {
                grid-template-columns: 1fr !important;
            }
            
            .question-card {
                padding: 1rem !important;
            }
            
            .option-text {
                font-size: 0.875rem !important;
            }
        }
        
        /* Small devices (phones, 375px to 639px) */
        @media screen and (min-width: 375px) and (max-width: 639px) {
            .header-title {
                font-size: 1.125rem;
                max-width: 140px;
            }
            
            .topic-grid-mobile {
                grid-template-columns: 1fr !important;
            }
        }
        
        /* Medium devices (tablets, 640px to 767px) */
        @media screen and (min-width: 640px) and (max-width: 767px) {
            .topic-grid-mobile {
                grid-template-columns: repeat(2, 1fr) !important;
            }
        }
        
        /* Large devices (tablets/laptops, 768px and up) */
        @media screen and (min-width: 768px) {
            .topic-grid-mobile {
                grid-template-columns: repeat(3, 1fr) !important;
            }
        }
        
        /* Extra large devices (desktops, 1024px and up) */
        @media screen and (min-width: 1024px) {
            .topic-grid-mobile {
                grid-template-columns: repeat(4, 1fr) !important;
            }
        }
        
        /* XXL devices (large desktops, 1280px and up) */
        @media screen and (min-width: 1280px) {
            .topic-grid-mobile {
                grid-template-columns: repeat(5, 1fr) !important;
            }
        }
        
        /* ===== MOBILE HEADER ADJUSTMENTS ===== */
        @media screen and (max-width: 639px) {
            .mobile-header {
                padding: 0.75rem 1rem !important;
                box-shadow: 0 2px 12px rgba(0, 0, 0, 0.1) !important;
            }
            
            .dark .mobile-header {
                box-shadow: 0 2px 12px rgba(0, 0, 0, 0.4) !important;
            }
            
            .mobile-header-content {
                flex-wrap: wrap;
                gap: 0.625rem;
            }
            
            .header-title {
                font-size: 1.3125rem !important;
                font-weight: 800 !important;
                letter-spacing: -0.01em;
            }
            
            .mobile-progress {
                order: 3;
                width: 100%;
                margin-top: 0.625rem;
            }
            
            .mobile-timer {
                font-size: 0.8125rem !important;
                padding: 0.5625rem 0.75rem !important;
                border-radius: 0.625rem !important;
            }
            
            .header-actions a,
            .header-actions button {
                padding: 0.5625rem !important;
                border-radius: 0.625rem !important;
            }
        }
        
        /* ===== MOBILE FORM ELEMENTS ===== */
        @media screen and (max-width: 639px) {
            input[type="text"],
            input[type="number"],
            select,
            textarea {
                font-size: 16px !important; /* Prevents iOS zoom on focus */
                padding: 1rem !important;
                border-radius: 0.75rem !important;
                border-width: 2px !important;
                transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1) !important;
            }
            
            input[type="text"]:focus,
            input[type="number"]:focus,
            select:focus,
            textarea:focus {
                border-color: #7AB2B2 !important;
                box-shadow: 0 0 0 3px rgba(122, 178, 178, 0.1) !important;
                transform: translateY(-1px);
            }
            
            .mobile-input-label {
                font-size: 0.875rem;
                margin-bottom: 0.5rem;
                font-weight: 600;
            }
            
            .mobile-select {
                appearance: none;
                background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M6 8l4 4 4-4'/%3e%3c/svg%3e");
                background-position: right 0.75rem center;
                background-repeat: no-repeat;
                background-size: 1.5em 1.5em;
                padding-right: 2.5rem;
            }
        }
        
        /* ===== MOBILE CARDS ===== */
        @media screen and (max-width: 639px) {
            .mobile-card {
                border-radius: 1.25rem !important;
                padding: 1.125rem !important;
                margin-left: -0.5rem;
                margin-right: -0.5rem;
                width: calc(100% + 1rem);
                box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05) !important;
            }
            
            .mobile-card-inner {
                padding: 1.5rem !important;
            }
        }
        
        /* ===== MOBILE BUTTONS ===== */
        @media screen and (max-width: 639px) {
            .mobile-btn {
                padding: 1.125rem !important;
                font-size: 1rem !important;
                border-radius: 0.875rem !important;
                font-weight: 700 !important;
                box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1) !important;
                transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1) !important;
            }
            
            .mobile-btn:active {
                transform: scale(0.98) !important;
            }
            
            .mobile-btn-sm {
                padding: 0.75rem 1rem !important;
                font-size: 0.875rem !important;
                font-weight: 600 !important;
            }
        }
        
        /* ===== MOBILE FIXED BOTTOM BAR ===== */
        @media screen and (max-width: 639px) {
            .mobile-bottom-bar {
                padding: 0.875rem !important;
                padding-bottom: calc(0.875rem + env(safe-area-inset-bottom, 0px)) !important;
                background: linear-gradient(to top, rgba(255, 255, 255, 0.98), rgba(255, 255, 255, 0.95)) !important;
                backdrop-filter: blur(12px) !important;
                box-shadow: 0 -4px 12px rgba(0, 0, 0, 0.1) !important;
            }
            
            .dark .mobile-bottom-bar {
                background: linear-gradient(to top, rgba(31, 41, 55, 0.98), rgba(31, 41, 55, 0.95)) !important;
                box-shadow: 0 -4px 12px rgba(0, 0, 0, 0.3) !important;
            }
            
            .mobile-bottom-bar button {
                padding: 1rem !important;
                border-radius: 0.875rem !important;
                font-weight: 700 !important;
            }
        }
        
        /* ===== MOBILE QUESTION OPTIONS ===== */
        @media screen and (max-width: 639px) {
            .mobile-option {
                padding: 1rem !important;
                border-radius: 0.875rem !important;
                border-width: 2px !important;
                transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1) !important;
            }
            
            .mobile-option:active {
                transform: scale(0.98);
            }
            
            .mobile-option-text {
                font-size: 0.9375rem !important;
                line-height: 1.5 !important;
                font-weight: 500 !important;
            }
        }
        
        /* ===== MOBILE TOPIC SELECTOR ===== */
        @media screen and (max-width: 639px) {
            .mobile-topic-item {
                padding: 0.75rem !important;
            }
            
            .mobile-topic-text {
                font-size: 0.8125rem !important;
            }
            
            /* Enhanced preset mode buttons for mobile */
            .preset-mode-btn {
                min-height: 95px !important;
                padding: 1rem !important;
                border-width: 2px !important;
                box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08) !important;
            }
            
            .preset-mode-btn:active {
                transform: scale(0.97);
            }
            
            .preset-mode-btn .font-semibold {
                font-size: 0.9375rem !important;
                font-weight: 700 !important;
                margin-bottom: 0.375rem !important;
            }
            
            /* Topic grid improvements */
            .topic-grid-container {
                max-height: 340px !important;
                padding: 0.375rem !important;
            }
            
            .topic-item-enhanced {
                padding: 0.9375rem 1rem !important;
                border-width: 2px !important;
                min-height: 50px !important;
                border-radius: 0.75rem !important;
            }
            
            .topic-label-text {
                font-size: 0.875rem !important;
                font-weight: 500 !important;
                line-height: 1.45 !important;
            }
            
            .topic-checkbox-custom {
                width: 1.25rem !important;
                height: 1.25rem !important;
                border-width: 2px !important;
            }
            
            /* Search input mobile */
            .topic-search-input {
                font-size: 0.9375rem !important;
                padding: 0.9375rem 2.5rem !important;
                border-radius: 0.875rem !important;
                border-width: 2px !important;
            }
            
            /* Stats bar mobile */
            .topic-stats-bar {
                padding: 0.8125rem 1rem !important;
                border-radius: 0.75rem !important;
                margin-bottom: 0.875rem !important;
            }
            
            .topic-count-badge {
                font-size: 0.8125rem !important;
                padding: 0.4375rem 0.8125rem !important;
                font-weight: 600 !important;
                border-radius: 0.5rem !important;
            }
            
            .topic-action-btn {
                font-size: 0.8125rem !important;
                padding: 0.5625rem 0.9375rem !important;
                min-width: 75px !important;
                font-weight: 600 !important;
            }
            
            /* Main container spacing */
            #app-container {
                padding-left: 0.875rem !important;
                padding-right: 0.875rem !important;
                padding-top: 1rem !important;
                padding-bottom: 7rem !important;
            }
            
            /* Card title improvements */
            .mobile-card h2 {
                font-size: 1.375rem !important;
                font-weight: 800 !important;
                line-height: 1.3 !important;
                margin-bottom: 0.375rem !important;
            }
            
            .mobile-card h3 {
                font-size: 1.0625rem !important;
                font-weight: 700 !important;
            }
            
            .mobile-card p {
                font-size: 0.8125rem !important;
                line-height: 1.5 !important;
            }
            
            /* Section spacing */
            .space-y-5 > * + * {
                margin-top: 1.375rem !important;
            }
            
            /* Question type checkboxes */
            .type-checkbox + span {
                padding: 0.875rem 0.625rem !important;
                font-size: 0.875rem !important;
                font-weight: 600 !important;
                border-radius: 0.75rem !important;
                border-width: 2px !important;
                min-height: 56px;
                display: flex;
                align-items: center;
                justify-content: center;
            }
            
            /* Start button enhancements */
            #startBtn {
                padding: 1.125rem 1.5rem !important;
                font-size: 1.0625rem !important;
                border-radius: 0.875rem !important;
                font-weight: 700 !important;
                box-shadow: 0 4px 14px rgba(99, 102, 241, 0.3) !important;
                letter-spacing: 0.01em;
            }
            
            #startBtn:active {
                transform: scale(0.98) !important;
            }
            
            /* Section headers with icons */
            .flex.items-center.gap-2 {
                gap: 0.625rem !important;
            }
            
            .flex.items-center.gap-2 h3 {
                font-size: 1.0625rem !important;
                font-weight: 700 !important;
                line-height: 1.3;
            }
            
            .flex.items-center.gap-2 p {
                font-size: 0.8125rem !important;
                margin-top: 0.125rem;
            }
            
            /* Icon wrappers for sections */
            .bg-purple-100,
            .bg-indigo-100,
            .bg-amber-100 {
                padding: 0.5625rem !important;
                border-radius: 0.625rem !important;
            }
            
            /* Input labels */
            .mobile-input-label {
                font-size: 0.875rem !important;
                font-weight: 700 !important;
                margin-bottom: 0.625rem !important;
            }
            
            /* Footer adjustments */
            footer {
                padding: 1.25rem 1rem !important;
            }
            
            footer p {
                font-size: 0.75rem !important;
            }
            
            /* Smooth scrolling */
            html {
                scroll-behavior: smooth;
                -webkit-overflow-scrolling: touch;
            }
            
            /* Better touch response for all interactive elements */
            button,
            a,
            label,
            input[type="checkbox"],
            input[type="radio"] {
                -webkit-tap-highlight-color: rgba(0, 0, 0, 0.1);
            }
        }
        
        /* ===== ENHANCED TOPIC SELECTOR STYLES ===== */
        .topic-selector-container {
            background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
            border-radius: 1rem;
            padding: 1.25rem;
            border: 1px solid #e2e8f0;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.04);
            transition: all 0.3s ease;
        }
        
        .topic-selector-container:hover {
            box-shadow: 0 6px 16px rgba(0, 0, 0, 0.08);
        }
        
        .dark .topic-selector-container {
            background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
            border-color: #334155;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
        }
        
        .dark .topic-selector-container:hover {
            box-shadow: 0 6px 16px rgba(0, 0, 0, 0.3);
        }
        
        .topic-search-wrapper {
            position: relative;
        }
        
        .topic-search-wrapper .search-icon {
            position: absolute;
            left: 1rem;
            top: 50%;
            transform: translateY(-50%);
            color: #94a3b8;
            pointer-events: none;
        }
        
        .topic-search-wrapper .clear-search-btn {
            position: absolute;
            right: 0.75rem;
            top: 50%;
            transform: translateY(-50%);
            color: #94a3b8;
            cursor: pointer;
            padding: 0.25rem;
            border-radius: 50%;
            transition: all 0.2s;
        }
        
        .topic-search-wrapper .clear-search-btn:hover {
            background: #e2e8f0;
            color: #64748b;
        }
        
        .dark .topic-search-wrapper .clear-search-btn:hover {
            background: #334155;
            color: #94a3b8;
        }
        
        .topic-search-input {
            padding-left: 2.75rem !important;
            padding-right: 2.5rem !important;
        }
        
        .topic-stats-bar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0.75rem 1rem;
            background: white;
            border-radius: 0.75rem;
            margin-bottom: 0.75rem;
            border: 1px solid #e2e8f0;
        }
        
        .dark .topic-stats-bar {
            background: #1e293b;
            border-color: #334155;
        }
        
        .topic-count-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.375rem;
            padding: 0.375rem 0.75rem;
            background: linear-gradient(135deg, #7AB2B2 0%, #5A9E9E 100%);
            color: white;
            border-radius: 9999px;
            font-size: 0.75rem;
            font-weight: 700;
            box-shadow: 0 4px 8px rgba(122, 178, 178, 0.4);
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        
        .topic-count-badge:hover {
            box-shadow: 0 6px 12px rgba(122, 178, 178, 0.5);
            transform: translateY(-1px);
        }
        
        .topic-action-buttons {
            display: flex;
            gap: 0.5rem;
        }
        
        .topic-action-btn {
            padding: 0.5rem 0.875rem;
            border-radius: 0.5rem;
            font-size: 0.75rem;
            font-weight: 700;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            border: 1px solid transparent;
        }
        
        .topic-action-btn-primary {
            background: linear-gradient(135deg, #EBF4F6 0%, #D5E8EA 100%);
            color: #5A9E9E;
            border-color: #B8D6D6;
            box-shadow: 0 1px 3px rgba(122, 178, 178, 0.1);
        }
        
        .topic-action-btn-primary:hover {
            background: linear-gradient(135deg, #D5E8EA 0%, #B8D6D6 100%);
            border-color: #7AB2B2;
            transform: translateY(-1px);
            box-shadow: 0 4px 8px rgba(122, 178, 178, 0.2);
        }
        
        .dark .topic-action-btn-primary {
            background: linear-gradient(135deg, rgba(8, 131, 149, 0.2) 0%, rgba(8, 131, 149, 0.15) 100%);
            color: #088395;
            border-color: rgba(8, 131, 149, 0.3);
            box-shadow: 0 1px 3px rgba(8, 131, 149, 0.2);
        }
        
        .dark .topic-action-btn-primary:hover {
            background: linear-gradient(135deg, rgba(8, 131, 149, 0.3) 0%, rgba(8, 131, 149, 0.25) 100%);
            box-shadow: 0 4px 8px rgba(8, 131, 149, 0.3);
        }
        
        .topic-action-btn-secondary {
            background: #f1f5f9;
            color: #64748b;
            border-color: #e2e8f0;
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
        }
        
        .topic-action-btn-secondary:hover {
            background: linear-gradient(135deg, #e2e8f0 0%, #cbd5e1 100%);
            color: #475569;
            transform: translateY(-1px);
            box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
        }
        
        .dark .topic-action-btn-secondary {
            background: rgba(100, 116, 139, 0.15);
            color: #94a3b8;
            border-color: rgba(100, 116, 139, 0.3);
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
        }
        
        .dark .topic-action-btn-secondary:hover {
            background: linear-gradient(135deg, rgba(100, 116, 139, 0.3) 0%, rgba(100, 116, 139, 0.25) 100%);
            box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
        }
        
        .topic-grid-container {
            max-height: 320px;
            overflow-y: auto;
            padding: 0.5rem;
            background: white;
            border-radius: 0.75rem;
            border: 1px solid #e2e8f0;
        }
        
        @media screen and (min-width: 1024px) {
            .topic-grid-container {
                max-height: 480px;
            }
        }
        
        @media screen and (min-width: 1536px) {
            .topic-grid-container {
                max-height: 600px;
            }
        }
        
        .dark .topic-grid-container {
            background: #1e293b;
            border-color: #334155;
        }
        
        .topic-item-enhanced {
            position: relative;
            display: flex;
            align-items: center;
            padding: 0.875rem 1rem;
            border-radius: 0.75rem;
            border: 2px solid transparent;
            background: #f8fafc;
            cursor: pointer;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            user-select: none;
        }
        
        .dark .topic-item-enhanced {
            background: #0f172a;
        }
        
        .topic-item-enhanced:hover {
            background: linear-gradient(135deg, #f1f5f9 0%, #e2e8f0 100%);
            border-color: #cbd5e1;
            transform: translateY(-1px);
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
        }
        
        .dark .topic-item-enhanced:hover {
            background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
            border-color: #475569;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
        }
        
        .topic-item-enhanced.selected {
            background: linear-gradient(135deg, #EBF4F6 0%, #D5E8EA 100%);
            border-color: #7AB2B2;
            box-shadow: 0 4px 12px rgba(122, 178, 178, 0.2);
            transform: translateY(-1px);
        }
        
        .dark .topic-item-enhanced.selected {
            background: linear-gradient(135deg, rgba(8, 131, 149, 0.2) 0%, rgba(9, 99, 126, 0.25) 100%);
            border-color: #088395;
            box-shadow: 0 4px 12px rgba(8, 131, 149, 0.3);
        }
        
        .topic-checkbox-custom {
            width: 1.375rem;
            height: 1.375rem;
            border-radius: 0.375rem;
            border: 2px solid #cbd5e1;
            background: white;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            flex-shrink: 0;
        }
        
        .dark .topic-checkbox-custom {
            border-color: #475569;
            background: #1e293b;
        }
        
        .topic-item-enhanced.selected .topic-checkbox-custom {
            background: linear-gradient(135deg, #7AB2B2 0%, #5A9E9E 100%);
            border-color: #5A9E9E;
            box-shadow: 0 4px 8px rgba(122, 178, 178, 0.4);
            transform: scale(1.05);
        }
        
        .topic-checkbox-custom svg {
            opacity: 0;
            transform: scale(0.5) rotate(-15deg);
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        
        .topic-item-enhanced.selected .topic-checkbox-custom svg {
            opacity: 1;
            transform: scale(1) rotate(0deg);
        }
        
        .topic-label-text {
            margin-left: 0.75rem;
            font-size: 0.875rem;
            font-weight: 600;
            color: #475569;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            line-height: 1.4;
        }
        
        .dark .topic-label-text {
            color: #94a3b8;
        }
        
        .topic-item-enhanced.selected .topic-label-text {
            color: #4A9B9B;
            font-weight: 700;
        }
        
        .dark .topic-item-enhanced.selected .topic-label-text {
            color: #088395;
        }
        
        .topic-empty-state {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            padding: 2rem;
            color: #94a3b8;
            text-align: center;
        }
        
        .topic-empty-state svg {
            margin-bottom: 0.75rem;
            opacity: 0.5;
        }
        
        .selected-topics-summary {
            margin-top: 0.75rem;
            padding: 0.75rem 1rem;
            background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
            border-radius: 0.75rem;
            border: 1px solid #fcd34d;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        
        .dark .selected-topics-summary {
            background: linear-gradient(135deg, rgba(251, 191, 36, 0.15) 0%, rgba(245, 158, 11, 0.2) 100%);
            border-color: rgba(251, 191, 36, 0.3);
        }
        
        .selected-topics-summary.warning {
            background: linear-gradient(135deg, #fee2e2 0%, #fecaca 100%);
            border-color: #f87171;
        }
        
        .dark .selected-topics-summary.warning {
            background: linear-gradient(135deg, rgba(248, 113, 113, 0.15) 0%, rgba(239, 68, 68, 0.2) 100%);
            border-color: rgba(248, 113, 113, 0.3);
        }
        
        @keyframes topicPulse {
            0%, 100% { transform: scale(1); }
            50% { transform: scale(1.03); }
        }
        
        .topic-item-enhanced.just-selected {
            animation: topicPulse 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        }
        
        /* ===== MODERN TIME LIMIT STYLES ===== */
        .time-limit-container {
            background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
            border-radius: 1rem;
            padding: 1.5rem;
            border: 1px solid #e2e8f0;
        }
        
        .dark .time-limit-container {
            background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
            border-color: #334155;
        }
        
        /* ===== QUESTION COUNT STYLES ===== */
        .question-count-container {
            background: linear-gradient(135deg, #ede9fe 0%, #ddd6fe 100%);
            border-radius: 1rem;
            padding: 1.5rem;
            border: 1px solid #c4b5fd;
            margin-bottom: 1.5rem;
        }
        
        .dark .question-count-container {
            background: linear-gradient(135deg, rgba(79, 70, 229, 0.15) 0%, rgba(99, 102, 241, 0.1) 100%);
            border-color: rgba(99, 102, 241, 0.3);
        }
        
        .question-count-icon-wrapper {
            background: linear-gradient(135deg, #ddd6fe 0%, #c4b5fd 100%);
            padding: 0.5rem;
            border-radius: 0.5rem;
            box-shadow: 0 2px 8px rgba(79, 70, 229, 0.25);
            display: flex;
            align-items: center;
            justify-content: center;
        }
        
        .dark .question-count-icon-wrapper {
            background: linear-gradient(135deg, rgba(79, 70, 229, 0.3) 0%, rgba(99, 102, 241, 0.4) 100%);
        }
        
        .question-count-badge {
            background: linear-gradient(135deg, #4f46e5 0%, #6366f1 100%);
            color: white;
            padding: 0.5rem 1rem;
            border-radius: 9999px;
            font-weight: 800;
            font-size: 0.875rem;
            box-shadow: 0 4px 12px rgba(79, 70, 229, 0.4);
            animation: bounceIn 0.6s cubic-bezier(0.175, 0.885, 0.32, 1.275);
        }
        
        .question-count-input-wrapper {
            display: flex;
            align-items: center;
            gap: 1rem;
            margin-bottom: 1rem;
            background: white;
            border-radius: 1rem;
            padding: 0.75rem;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
        }
        
        .dark .question-count-input-wrapper {
            background: #1e293b;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
        }
        
        .count-stepper-btn {
            width: 48px;
            height: 48px;
            border-radius: 0.75rem;
            border: 2px solid #e2e8f0;
            background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
            color: #475569;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            flex-shrink: 0;
        }
        
        .dark .count-stepper-btn {
            background: linear-gradient(135deg, #334155 0%, #1e293b 100%);
            border-color: #475569;
            color: #cbd5e1;
        }
        
        .count-stepper-btn:hover {
            transform: scale(1.08) translateY(-2px);
            box-shadow: 0 6px 16px rgba(79, 70, 229, 0.3);
            border-color: #6366f1;
            background: linear-gradient(135deg, #6366f1 0%, #4f46e5 100%);
            color: white;
        }
        
        .count-stepper-btn:active {
            transform: scale(0.98);
        }
        
        .count-input-container {
            flex: 1;
            position: relative;
            height: 64px;
        }
        
        .count-input-field {
            width: 100%;
            height: 100%;
            border: 3px solid #e2e8f0;
            background: #f8fafc;
            border-radius: 1rem;
            text-align: center;
            font-size: 2rem;
            font-weight: 900;
            color: #1e293b;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            appearance: textfield;
            -moz-appearance: textfield;
        }
        
        .count-input-field::-webkit-outer-spin-button,
        .count-input-field::-webkit-inner-spin-button {
            -webkit-appearance: none;
            margin: 0;
        }
        
        .dark .count-input-field {
            background: #0f172a;
            border-color: #334155;
            color: #f1f5f9;
        }
        
        .count-input-field:focus {
            outline: none;
            border-color: #6366f1;
            background: white;
            box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.1);
        }
        
        .dark .count-input-field:focus {
            background: #1e293b;
            border-color: #818cf8;
        }
        
        .count-input-overlay {
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 2rem;
            font-weight: 900;
            color: #4f46e5;
            pointer-events: none;
            background: linear-gradient(135deg, #6366f1 0%, #4f46e5 100%);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            opacity: 0;
            transition: opacity 0.3s;
        }
        
        .count-input-field:not(:focus) + .count-input-overlay {
            opacity: 1;
        }
        
        /* Range Slider */
        .count-slider-wrapper {
            margin-bottom: 1rem;
        }
        
        .count-slider {
            --slider-thumb-start: #ff7f50; /* Coral color */
            --slider-thumb-end: #ff4500;   /* OrangeRed color */
            --slider-thumb-shadow: rgba(255, 69, 0, 0.5);
            --slider-thumb-hover-shadow: rgba(255, 69, 0, 0.7);
            width: 100%;
            height: 8px;
            border-radius: 9999px;
            background: linear-gradient(90deg, #e2e8f0 0%, #cbd5e1 100%);
            outline: none;
            appearance: none;
            -webkit-appearance: none;
            transition: all 0.3s;
        }
        
        .dark .count-slider {
            background: linear-gradient(90deg, #334155 0%, #475569 100%);
        }
        
        .count-slider::-webkit-slider-thumb {
            -webkit-appearance: none;
            appearance: none;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--slider-thumb-start) 0%, var(--slider-thumb-end) 100%);
            cursor: pointer;
            box-shadow: 0 4px 12px var(--slider-thumb-shadow);
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        
        .count-slider::-webkit-slider-thumb:hover {
            transform: scale(1.2);
            box-shadow: 0 6px 20px var(--slider-thumb-hover-shadow);
        }
        
        .count-slider::-moz-range-thumb {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--slider-thumb-start) 0%, var(--slider-thumb-end) 100%);
            cursor: pointer;
            border: none;
            box-shadow: 0 4px 12px var(--slider-thumb-shadow);
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        
        .count-slider::-moz-range-thumb:hover {
            transform: scale(1.2);
            box-shadow: 0 6px 20px var(--slider-thumb-hover-shadow);
        }
        
        .slider-labels {
            display: flex;
            justify-content: space-between;
            margin-top: 0.5rem;
            font-size: 0.75rem;
            font-weight: 700;
            color: #64748b;
        }
        
        .dark .slider-labels {
            color: #94a3b8;
        }
        
        /* Count Presets */
        .count-presets {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 0.5rem;
        }
        
        @media screen and (max-width: 639px) {
            .count-presets {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        
        .count-preset-btn {
            padding: 0.75rem;
            border-radius: 0.75rem;
            border: 2px solid #e2e8f0;
            background: white;
            color: #475569;
            font-weight: 700;
            font-size: 0.875rem;
            cursor: pointer;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
        }
        
        .dark .count-preset-btn {
            background: #1e293b;
            border-color: #334155;
            color: #cbd5e1;
        }
        
        .count-preset-btn:hover {
            transform: translateY(-2px);
            background: linear-gradient(135deg, #6366f1 0%, #4f46e5 100%);
            border-color: #4f46e5;
            color: white;
            box-shadow: 0 6px 16px rgba(79, 70, 229, 0.4);
        }
        
        .count-preset-btn:active {
            transform: translateY(0);
        }
        
        .time-limit-header {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            margin-bottom: 1.5rem;
        }
        
        .time-limit-icon-wrapper {
            background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
            padding: 0.75rem;
            border-radius: 0.75rem;
            box-shadow: 0 2px 8px rgba(251, 191, 36, 0.25);
        }
        
        .dark .time-limit-icon-wrapper {
            background: linear-gradient(135deg, rgba(251, 191, 36, 0.2) 0%, rgba(245, 158, 11, 0.3) 100%);
        }
        
        /* Time Display Card */
        .time-display-card {
            background: white;
            border-radius: 1rem;
            padding: 1.5rem;
            text-align: center;
            border: 2px solid #e2e8f0;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
            transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        }
        
        .dark .time-display-card {
            background: #1e293b;
            border-color: #334155;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
        }
        
        .time-display-card:hover {
            transform: translateY(-3px) scale(1.01);
            box-shadow: 0 12px 24px rgba(0, 0, 0, 0.1);
            border-color: #B8D6D6;
        }
        
        .dark .time-display-card:hover {
            box-shadow: 0 12px 24px rgba(0, 0, 0, 0.4);
            border-color: #088395;
        }
        
        .time-display-value {
            font-size: 3.5rem;
            font-weight: 900;
            background: linear-gradient(135deg, #1e293b 0%, #5A9E9E 100%);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            line-height: 1;
            transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            letter-spacing: -0.02em;
        }
        
        .dark .time-display-value {
            background: linear-gradient(135deg, #f1f5f9 0%, #088395 100%);
            -webkit-background-clip: text;
            background-clip: text;
        }
        
        .time-display-value.updated {
            animation: pulse 0.4s ease-out;
        }
        
        @keyframes pulse {
            0% { transform: scale(1); }
            50% { transform: scale(1.12); }
            100% { transform: scale(1); }
        }
        
        .time-display-label {
            font-size: 0.875rem;
            font-weight: 700;
            color: #64748b;
            text-transform: uppercase;
            letter-spacing: 0.12em;
            margin-top: 0.75rem;
        }
        
        .dark .time-display-label {
            color: #94a3b8;
        }
        
        /* Preset Buttons Grid */
        .preset-buttons {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 0.5rem;
            margin-top: 1.25rem;
        }
        
        @media screen and (max-width: 639px) {
            .preset-buttons {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        
        @media screen and (min-width: 1024px) {
            .preset-buttons {
                grid-template-columns: repeat(6, 1fr);
            }
        }
        
        @media screen and (min-width: 1280px) {
            .preset-buttons {
                grid-template-columns: repeat(8, 1fr);
            }
        }
        
        .preset-btn {
            position: relative;
            padding: 0.75rem 0.5rem;
            border-radius: 0.75rem;
            border: 2px solid #e2e8f0;
            background: white;
            color: #475569;
            font-weight: 700;
            font-size: 0.875rem;
            cursor: pointer;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 0.25rem;
            min-height: 48px;
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
        }
        
        .dark .preset-btn {
            background: #1e293b;
            border-color: #334155;
            color: #cbd5e1;
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
        }
        
        .preset-btn:hover:not(:disabled) {
            border-color: #f59e0b;
            background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(245, 158, 11, 0.2);
        }
        
        .dark .preset-btn:hover:not(:disabled) {
            background: linear-gradient(135deg, rgba(251, 191, 36, 0.2) 0%, rgba(245, 158, 11, 0.15) 100%);
            border-color: #fbbf24;
            box-shadow: 0 4px 12px rgba(245, 158, 11, 0.3);
        }
        
        .preset-btn:focus-visible {
            outline: 2px solid #f59e0b;
            outline-offset: 2px;
        }
        
        .preset-btn.selected {
            background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
            border-color: #d97706;
            color: white;
            box-shadow: 0 6px 16px rgba(245, 158, 11, 0.5);
            transform: translateY(-2px);
            font-weight: 800;
        }
        
        .preset-btn.selected:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 20px rgba(245, 158, 11, 0.6);
        }
        
        .preset-btn:disabled {
            opacity: 0.5;
            cursor: not-allowed;
        }

        /* Preset Mode Buttons */
        .preset-mode-btn {
            position: relative;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            overflow: hidden;
        }

        .preset-mode-btn::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(135deg, transparent 0%, rgba(255, 255, 255, 0.1) 100%);
            pointer-events: none;
        }

        .preset-mode-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
        }

        .dark .preset-mode-btn:hover {
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
        }

        .preset-mode-btn:active {
            transform: translateY(0);
        }
        
        /* Slider Container */
        .slider-container {
            margin-top: 1.5rem;
            padding: 1rem;
            background: white;
            border-radius: 0.75rem;
            border: 1px solid #e2e8f0;
        }
        
        .dark .slider-container {
            background: #1e293b;
            border-color: #334155;
        }
        
        .slider-label {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 0.75rem;
        }
        
        .slider-label-text {
            font-size: 0.875rem;
            font-weight: 600;
            color: #475569;
        }
        
        .dark .slider-label-text {
            color: #cbd5e1;
        }
        
        .slider-value {
            font-size: 0.875rem;
            font-weight: 700;
            color: #f59e0b;
        }
        
        /* Updated styles for time-slider and numQuestionsSlider */
        .time-slider,
        .numQuestionsSlider {
            --slider-thumb-start: #ff7f50; /* Coral color */
            --slider-thumb-end: #ff4500;   /* OrangeRed color */
            --slider-thumb-shadow: rgba(255, 69, 0, 0.5);
            --slider-thumb-hover-shadow: rgba(255, 69, 0, 0.7);
            height: 10px;
            border-radius: 9999px;
            background: linear-gradient(90deg, #f0f0f0 0%, #dcdcdc 100%);
            outline: none;
            appearance: none;
            -webkit-appearance: none;
            transition: all 0.3s;
        }

        .time-slider::-webkit-slider-thumb,
        .numQuestionsSlider::-webkit-slider-thumb {
            -webkit-appearance: none;
            appearance: none;
            width: 30px;
            height: 30px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--slider-thumb-start) 0%, var(--slider-thumb-end) 100%);
            cursor: pointer;
            box-shadow: 0 4px 12px var(--slider-thumb-shadow);
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

        .time-slider::-webkit-slider-thumb:hover,
        .numQuestionsSlider::-webkit-slider-thumb:hover {
            transform: scale(1.2);
            box-shadow: 0 6px 20px var(--slider-thumb-hover-shadow);
        }

        .time-slider::-moz-range-thumb,
        .numQuestionsSlider::-moz-range-thumb {
            width: 30px;
            height: 30px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--slider-thumb-start) 0%, var(--slider-thumb-end) 100%);
            cursor: pointer;
            border: none;
            box-shadow: 0 4px 12px var(--slider-thumb-shadow);
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

        .time-slider::-moz-range-thumb:hover,
        .numQuestionsSlider::-moz-range-thumb:hover {
            transform: scale(1.2);
            box-shadow: 0 6px 20px var(--slider-thumb-hover-shadow);
        }
        
        .slider-labels {
            display: flex;
            justify-content: space-between;
            margin-top: 0.5rem;
            font-size: 0.75rem;
            font-weight: 700;
            color: #64748b;
        }
        
        .dark .slider-labels {
            color: #94a3b8;
        }
        
        /* Count Presets */
        .count-presets {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 0.5rem;
        }
        
        @media screen and (max-width: 639px) {
            .count-presets {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        
        .count-preset-btn {
            padding: 0.75rem;
            border-radius: 0.75rem;
            border: 2px solid #e2e8f0;
            background: white;
            color: #475569;
            font-weight: 700;
            font-size: 0.875rem;
            cursor: pointer;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
        }
        
        .dark .count-preset-btn {
            background: #1e293b;
            border-color: #334155;
            color: #cbd5e1;
        }
        
        .count-preset-btn:hover {
            transform: translateY(-2px);
            background: linear-gradient(135deg, #6366f1 0%, #4f46e5 100%);
            border-color: #4f46e5;
            color: white;
            box-shadow: 0 6px 16px rgba(79, 70, 229, 0.4);
        }
        
        .count-preset-btn:active {
            transform: translateY(0);
        }
        
        .time-limit-header {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            margin-bottom: 1.5rem;
        }
        
        .time-limit-icon-wrapper {
            background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
            padding: 0.75rem;
            border-radius: 0.75rem;
            box-shadow: 0 2px 8px rgba(251, 191, 36, 0.25);
        }
        
        .dark .time-limit-icon-wrapper {
            background: linear-gradient(135deg, rgba(251, 191, 36, 0.2) 0%, rgba(245, 158, 11, 0.3) 100%);
        }
        
        /* Time Display Card */
        .time-display-card {
            background: white;
            border-radius: 1rem;
            padding: 1.5rem;
            text-align: center;
            border: 2px solid #e2e8f0;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
            transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        }
        
        .dark .time-display-card {
            background: #1e293b;
            border-color: #334155;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
        }
        
        .time-display-card:hover {
            transform: translateY(-3px) scale(1.01);
            box-shadow: 0 12px 24px rgba(0, 0, 0, 0.1);
            border-color: #B8D6D6;
        }
        
        .dark .time-display-card:hover {
            box-shadow: 0 12px 24px rgba(0, 0, 0, 0.4);
            border-color: #088395;
        }
        
        .time-display-value {
            font-size: 3.5rem;
            font-weight: 900;
            background: linear-gradient(135deg, #1e293b 0%, #5A9E9E 100%);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            line-height: 1;
            transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            letter-spacing: -0.02em;
        }
        
        .dark .time-display-value {
            background: linear-gradient(135deg, #f1f5f9 0%, #088395 100%);
            -webkit-background-clip: text;
            background-clip: text;
        }
        
        .time-display-value.updated {
            animation: pulse 0.4s ease-out;
        }
        
        @keyframes pulse {
            0% { transform: scale(1); }
            50% { transform: scale(1.12); }
            100% { transform: scale(1); }
        }
        
        .time-display-label {
            font-size: 0.875rem;
            font-weight: 700;
            color: #64748b;
            text-transform: uppercase;
            letter-spacing: 0.12em;
            margin-top: 0.75rem;
        }
        
        .dark .time-display-label {
            color: #94a3b8;
        }
        
        /* Preset Buttons Grid */
        .preset-buttons {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 0.5rem;
            margin-top: 1.25rem;
        }
        
        @media screen and (max-width: 639px) {
            .preset-buttons {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        
        @media screen and (min-width: 1024px) {
            .preset-buttons {
                grid-template-columns: repeat(6, 1fr);
            }
        }
        
        @media screen and (min-width: 1280px) {
            .preset-buttons {
                grid-template-columns: repeat(8, 1fr);
            }
        }
        
        .preset-btn {
            position: relative;
            padding: 0.75rem 0.5rem;
            border-radius: 0.75rem;
            border: 2px solid #e2e8f0;
            background: white;
            color: #475569;
            font-weight: 700;
            font-size: 0.875rem;
            cursor: pointer;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 0.25rem;
            min-height: 48px;
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
        }
        
        .dark .preset-btn {
            background: #1e293b;
            border-color: #334155;
            color: #cbd5e1;
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
        }
        
        .preset-btn:hover:not(:disabled) {
            border-color: #f59e0b;
            background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(245, 158, 11, 0.2);
        }
        
        .dark .preset-btn:hover:not(:disabled) {
            background: linear-gradient(135deg, rgba(251, 191, 36, 0.2) 0%, rgba(245, 158, 11, 0.15) 100%);
            border-color: #fbbf24;
            box-shadow: 0 4px 12px rgba(245, 158, 11, 0.3);
        }
        
        .preset-btn:focus-visible {
            outline: 2px solid #f59e0b;
            outline-offset: 2px;
        }
        
        .preset-btn.selected {
            background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
            border-color: #d97706;
            color: white;
            box-shadow: 0 6px 16px rgba(245, 158, 11, 0.5);
            transform: translateY(-2px);
            font-weight: 800;
        }
        
        .preset-btn.selected:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 20px rgba(245, 158, 11, 0.6);
        }
        
        .preset-btn:disabled {
            opacity: 0.5;
            cursor: not-allowed;
        }

        /* Preset Mode Buttons */
        .preset-mode-btn {
            position: relative;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            overflow: hidden;
        }

        .preset-mode-btn::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(135deg, transparent 0%, rgba(255, 255, 255, 0.1) 100%);
            pointer-events: none;
        }

        .preset-mode-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
        }

        .dark .preset-mode-btn:hover {
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
        }

        .preset-mode-btn:active {
            transform: translateY(0);
        }
        
        /* Slider Container */
        .slider-container {
            margin-top: 1.5rem;
            padding: 1rem;
            background: white;
            border-radius: 0.75rem;
            border: 1px solid #e2e8f0;
        }
        
        .dark .slider-container {
            background: #1e293b;
            border-color: #334155;
        }
        
        .slider-label {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 0.75rem;
        }
        
        .slider-label-text {
            font-size: 0.875rem;
            font-weight: 600;
            color: #475569;
        }
        
        .dark .slider-label-text {
            color: #cbd5e1;
        }
        
        .slider-value {
            font-size: 0.875rem;
            font-weight: 700;
            color: #f59e0b;
        }
        
        /* Custom Range Slider */
        .time-slider {
            --slider-thumb-start: #f59e0b;
            --slider-thumb-end: #d97706;
            --slider-thumb-shadow: rgba(245, 158, 11, 0.5);
            --slider-thumb-hover-shadow: rgba(245, 158, 11, 0.6);
            width: 100%;
            height: 10px;
            border-radius: 9999px;
            background: linear-gradient(90deg, #f0f0f0 0%, #dcdcdc 100%);
            outline: none;
            appearance: none;
            -webkit-appearance: none;
            cursor: pointer;
            transition: all 0.3s;
        }

        .time-slider::-webkit-slider-runnable-track {
            height: 10px;
            border-radius: 9999px;
            background: linear-gradient(90deg, #fef3c7 0%, #fde68a 50%, #fcd34d 100%);
        }

        .dark .time-slider::-webkit-slider-runnable-track {
            background: linear-gradient(90deg, #78350f 0%, #92400e 50%, #b45309 100%);
        }

        .time-slider::-moz-range-track {
            height: 10px;
            border-radius: 9999px;
            background: linear-gradient(90deg, #fef3c7 0%, #fde68a 50%, #fcd34d 100%);
        }

        .dark .time-slider::-moz-range-track {
            background: linear-gradient(90deg, #78350f 0%, #92400e 50%, #b45309 100%);
        }

        .time-slider::-moz-range-progress {
            height: 10px;
            border-radius: 9999px;
            background: linear-gradient(90deg, #f59e0b 0%, #d97706 100%);
        }
        
        .time-slider::-webkit-slider-thumb,
        .numQuestionsSlider::-webkit-slider-thumb {
            -webkit-appearance: none;
            appearance: none;
            width: 30px;
            height: 30px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--slider-thumb-start) 0%, var(--slider-thumb-end) 100%);
            cursor: pointer;
            box-shadow: 0 4px 12px var(--slider-thumb-shadow);
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        
        .time-slider::-webkit-slider-thumb:hover,
        .numQuestionsSlider::-webkit-slider-thumb:hover {
            transform: scale(1.2);
            box-shadow: 0 6px 20px var(--slider-thumb-hover-shadow);
        }
        
        .time-slider::-moz-range-thumb,
        .numQuestionsSlider::-moz-range-thumb {
            width: 30px;
            height: 30px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--slider-thumb-start) 0%, var(--slider-thumb-end) 100%);
            cursor: pointer;
            border: none;
            box-shadow: 0 4px 12px var(--slider-thumb-shadow);
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        
        .time-slider::-moz-range-thumb:hover,
        .numQuestionsSlider::-moz-range-thumb:hover {
            transform: scale(1.2);
            box-shadow: 0 6px 20px var(--slider-thumb-hover-shadow);
        }
        
        .slider-labels {
            display: flex;
            justify-content: space-between;
            margin-top: 0.5rem;
            font-size: 0.75rem;
            font-weight: 700;
            color: #64748b;
        }
        
        .dark .slider-labels {
            color: #94a3b8;
        }
        
        /* Count Presets */
        .count-presets {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 0.5rem;
        }
        
        @media screen and (max-width: 639px) {
            .count-presets {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        
        .count-preset-btn {
            padding: 0.75rem;
            border-radius: 0.75rem;
            border: 2px solid #e2e8f0;
            background: white;
            color: #475569;
            font-weight: 700;
            font-size: 0.875rem;
            cursor: pointer;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
        }
        
        .dark .count-preset-btn {
            background: #1e293b;
            border-color: #334155;
            color: #cbd5e1;
        }
        
        .count-preset-btn:hover {
            transform: translateY(-2px);
            background: linear-gradient(135deg, #6366f1 0%, #4f46e5 100%);
            border-color: #4f46e5;
            color: white;
            box-shadow: 0 6px 16px rgba(79, 70, 229, 0.4);
        }
        
        .count-preset-btn:active {
            transform: translateY(0);
        }
        
        .time-limit-header {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            margin-bottom: 1.5rem;
        }
        
        .time-limit-icon-wrapper {
            background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
            padding: 0.75rem;
            border-radius: 0.75rem;
            box-shadow: 0 2px 8px rgba(251, 191, 36, 0.25);
        }
        
        .dark .time-limit-icon-wrapper {
            background: linear-gradient(135deg, rgba(251, 191, 36, 0.2) 0%, rgba(245, 158, 11, 0.3) 100%);
        }
        
        /* Time Display Card */
        .time-display-card {
            background: white;
            border-radius: 1rem;
            padding: 1.5rem;
            text-align: center;
            border: 2px solid #e2e8f0;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
            transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        }
        
        .dark .time-display-card {
            background: #1e293b;
            border-color: #334155;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
        }
        
        .time-display-card:hover {
            transform: translateY(-3px) scale(1.01);
            box-shadow: 0 12px 24px rgba(0, 0, 0, 0.1);
            border-color: #B8D6D6;
        }
        
        .dark .time-display-card:hover {
            box-shadow: 0 12px 24px rgba(0, 0, 0, 0.4);
            border-color: #088395;
        }
        
        .time-display-value {
            font-size: 3.5rem;
            font-weight: 900;
            background: linear-gradient(135deg, #1e293b 0%, #5A9E9E 100%);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            line-height: 1;
            transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            letter-spacing: -0.02em;
        }
        
        .dark .time-display-value {
            background: linear-gradient(135deg, #f1f5f9 0%, #088395 100%);
            -webkit-background-clip: text;
            background-clip: text;
        }
        
        .time-display-value.updated {
            animation: pulse 0.4s ease-out;
        }
        
        @keyframes pulse {
            0% { transform: scale(1); }
            50% { transform: scale(1.12); }
            100% { transform: scale(1); }
        }
        
        .time-display-label {
            font-size: 0.875rem;
            font-weight: 700;
            color: #64748b;
            text-transform: uppercase;
            letter-spacing: 0.12em;
            margin-top: 0.75rem;
        }
        
        .dark .time-display-label {
            color: #94a3b8;
        }
        
        /* Preset Buttons Grid */
        .preset-buttons {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 0.5rem;
            margin-top: 1.25rem;
        }
        
        @media screen and (max-width: 639px) {
            .preset-buttons {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        
        @media screen and (min-width: 1024px) {
            .preset-buttons {
                grid-template-columns: repeat(6, 1fr);
            }
        }
        
        @media screen and (min-width: 1280px) {
            .preset-buttons {
                grid-template-columns: repeat(8, 1fr);
            }
        }
        
        .preset-btn {
            position: relative;
            padding: 0.75rem 0.5rem;
            border-radius: 0.75rem;
            border: 2px solid #e2e8f0;
            background: white;
            color: #475569;
            font-weight: 700;
            font-size: 0.875rem;
            cursor: pointer;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 0.25rem;
            min-height: 48px;
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
        }
        
        .dark .preset-btn {
            background: #1e293b;
            border-color: #334155;
            color: #cbd5e1;
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
        }
        
        .preset-btn:hover:not(:disabled) {
            border-color: #f59e0b;
            background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(245, 158, 11, 0.2);
        }
        
        .dark .preset-btn:hover:not(:disabled) {
            background: linear-gradient(135deg, rgba(251, 191, 36, 0.2) 0%, rgba(245, 158, 11, 0.15) 100%);
            border-color: #fbbf24;
            box-shadow: 0 4px 12px rgba(245, 158, 11, 0.3);
        }
        
        .preset-btn:focus-visible {
            outline: 2px solid #f59e0b;
            outline-offset: 2px;
        }
        
        .preset-btn.selected {
            background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
            border-color: #d97706;
            color: white;
            box-shadow: 0 6px 16px rgba(245, 158, 11, 0.5);
            transform: translateY(-2px);
            font-weight: 800;
        }
        
        .preset-btn.selected:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 20px rgba(245, 158, 11, 0.6);
        }
        
        .preset-btn:disabled {
            opacity: 0.5;
            cursor: not-allowed;
        }

        /* Preset Mode Buttons */
        .preset-mode-btn {
            position: relative;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            overflow: hidden;
        }

        .preset-mode-btn::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(135deg, transparent 0%, rgba(255, 255, 255, 0.1) 100%);
            pointer-events: none;
        }

        .preset-mode-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
        }

        .dark .preset-mode-btn:hover {
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
        }

        .preset-mode-btn:active {
            transform: translateY(0);
        }
        
        /* Slider Container */
        .slider-container {
            margin-top: 1.5rem;
            padding: 1rem;
            background: white;
            border-radius: 0.75rem;
            border: 1px solid #e2e8f0;
        }
        
        .dark .slider-container {
            background: #1e293b;
            border-color: #334155;
        }
        
        .slider-label {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 0.75rem;
        }
        
        .slider-label-text {
            font-size: 0.875rem;
            font-weight: 600;
            color: #475569;
        }
        
        .dark .slider-label-text {
            color: #cbd5e1;
        }
        
        .slider-value {
            font-size: 0.875rem;
            font-weight: 700;
            color: #f59e0b;
        }
        
        /* Custom Range Slider */
        .time-slider {
            --slider-thumb-start: #f59e0b;
            --slider-thumb-end: #d97706;
            --slider-thumb-shadow: rgba(245, 158, 11, 0.5);
            --slider-thumb-hover-shadow: rgba(245, 158, 11, 0.6);
            height: 10px;
            border-radius: 9999px;
            background: linear-gradient(90deg, #f0f0f0 0%, #dcdcdc 100%);
            outline: none;
            appearance: none;
            -webkit-appearance: none;
            transition: all 0.3s;
        }
        
        .time-slider::-webkit-slider-thumb,
        .numQuestionsSlider::-webkit-slider-thumb {
            -webkit-appearance: none;
            appearance: none;
            width: 30px;
            height: 30px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--slider-thumb-start) 0%, var(--slider-thumb-end) 100%);
            cursor: pointer;
            box-shadow: 0 4px 12px var(--slider-thumb-shadow);
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        
        .time-slider::-webkit-slider-thumb:hover,
        .numQuestionsSlider::-webkit-slider-thumb:hover {
            transform: scale(1.2);
            box-shadow: 0 6px 20px var(--slider-thumb-hover-shadow);
        }
        
        .time-slider::-moz-range-thumb,
        .numQuestionsSlider::-moz-range-thumb {
            width: 30px;
            height: 30px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--slider-thumb-start) 0%, var(--slider-thumb-end) 100%);
            cursor: pointer;
            border: none;
            box-shadow: 0 4px 12px var(--slider-thumb-shadow);
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        
        .time-slider::-moz-range-thumb:hover,
        .numQuestionsSlider::-moz-range-thumb:hover {
            transform: scale(1.2);
            box-shadow: 0 6px 20px var(--slider-thumb-hover-shadow);
        }
        
        .slider-labels {
            display: flex;
            justify-content: space-between;
            margin-top: 0.5rem;
            font-size: 0.75rem;
            font-weight: 700;
            color: #64748b;
        }
        
        .dark .slider-labels {
            color: #94a3b8;
        }
        
        /* Count Presets */
        .count-presets {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 0.5rem;
        }
        
        @media screen and (max-width: 639px) {
            .count-presets {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        
        .count-preset-btn {
            padding: 0.75rem;
            border-radius: 0.75rem;
            border: 2px solid #e2e8f0;
            background: white;
            color: #475569;
            font-weight: 700;
            font-size: 0.875rem;
            cursor: pointer;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
        }
        
        .dark .count-preset-btn {
            background: #1e293b;
            border-color: #334155;
            color: #cbd5e1;
        }
        
        .count-preset-btn:hover {
            transform: translateY(-2px);
            background: linear-gradient(135deg, #6366f1 0%, #4f46e5 100%);
            border-color: #4f46e5;
            color: white;
            box-shadow: 0 6px 16px rgba(79, 70, 229, 0.4);
        }
        
        .count-preset-btn:active {
            transform: translateY(0);
        }
        
        .time-limit-header {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            margin-bottom: 1.5rem;
        }
        
        .time-limit-icon-wrapper {
            background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
            padding: 0.75rem;
            border-radius: 0.75rem;
            box-shadow: 0 2px 8px rgba(251, 191, 36, 0.25);
        }
        
        .dark .time-limit-icon-wrapper {
            background: linear-gradient(135deg, rgba(251, 191, 36, 0.2) 0%, rgba(245, 158, 11, 0.3) 100%);
        }
        
        /* Time Display Card */
        .time-display-card {
            background: white;
            border-radius: 1rem;
            padding: 1.5rem;
            text-align: center;
            border: 2px solid #e2e8f0;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
            transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        }
        
        .dark .time-display-card {
            background: #1e293b;
            border-color: #334155;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
        }
        
        .time-display-card:hover {
            transform: translateY(-3px) scale(1.01);
            box-shadow: 0 12px 24px rgba(0, 0, 0, 0.1);
            border-color: #B8D6D6;
        }
        
        .dark .time-display-card:hover {
            box-shadow: 0 12px 24px rgba(0, 0, 0, 0.4);
            border-color: #088395;
        }
        
        .time-display-value {
            font-size: 3.5rem;
            font-weight: 900;
            background: linear-gradient(135deg, #1e293b 0%, #5A9E9E 100%);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            line-height: 1;
            transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            letter-spacing: -0.02em;
        }
        
        .dark .time-display-value {
            background: linear-gradient(135deg, #f1f5f9 0%, #088395 100%);
            -webkit-background-clip: text;
            background-clip: text;
        }
        
        .time-display-value.updated {
            animation: pulse 0.4s ease-out;
        }
        
        @keyframes pulse {
            0% { transform: scale(1); }
            50% { transform: scale(1.12); }
            100% { transform: scale(1); }
        }
        
        .time-display-label {
            font-size: 0.875rem;
            font-weight: 700;
            color: #64748b;
            text-transform: uppercase;
            letter-spacing: 0.12em;
            margin-top: 0.75rem;
        }
        
        .dark .time-display-label {
            color: #94a3b8;
        }
        
        /* Preset Buttons Grid */
        .preset-buttons {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 0.5rem;
            margin-top: 1.25rem;
        }
        
        @media screen and (max-width: 639px) {
            .preset-buttons {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        
        @media screen and (min-width: 1024px) {
            .preset-buttons {
                grid-template-columns: repeat(6, 1fr);
            }
        }
        
        @media screen and (min-width: 1280px) {
            .preset-buttons {
                grid-template-columns: repeat(8, 1fr);
            }
        }
        
        .preset-btn {
            position: relative;
            padding: 0.75rem 0.5rem;
            border-radius: 0.75rem;
            border: 2px solid #e2e8f0;
            background: white;
            color: #475569;
            font-weight: 700;
            font-size: 0.875rem;
            cursor: pointer;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 0.25rem;
            min-height: 48px;
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
        }
        
        .dark .preset-btn {
            background: #1e293b;
            border-color: #334155;
            color: #cbd5e1;
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
        }
        
        .preset-btn:hover:not(:disabled) {
            border-color: #f59e0b;
            background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(245, 158, 11, 0.2);
        }
        
        .dark .preset-btn:hover:not(:disabled) {
            background: linear-gradient(135deg, rgba(251, 191, 36, 0.2) 0%, rgba(245, 158, 11, 0.15) 100%);
            border-color: #fbbf24;
            box-shadow: 0 4px 12px rgba(245, 158, 11, 0.3);
        }
        
        .preset-btn:focus-visible {
            outline: 2px solid #f59e0b;
            outline-offset: 2px;
        }
        
        .preset-btn.selected {
            background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
            border-color: #d97706;
            color: white;
            box-shadow: 0 6px 16px rgba(245, 158, 11, 0.5);
            transform: translateY(-2px);
            font-weight: 800;
        }
        
        .preset-btn.selected:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 20px rgba(245, 158, 11, 0.6);
        }
        
        .preset-btn:disabled {
            opacity: 0.5;
            cursor: not-allowed;
        }

        /* Preset Mode Buttons */
        .preset-mode-btn {
            position: relative;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            overflow: hidden;
        }

        .preset-mode-btn::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(135deg, transparent 0%, rgba(255, 255, 255, 0.1) 100%);
            pointer-events: none;
        }

        .preset-mode-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
        }

        .dark .preset-mode-btn:hover {
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
        }

        .preset-mode-btn:active {
            transform: translateY(0);
        }
        
        /* Slider Container */
        .slider-container {
            margin-top: 1.5rem;
            padding: 1rem;
            background: white;
            border-radius: 0.75rem;
            border: 1px solid #e2e8f0;
        }
        
        .dark .slider-container {
            background: #1e293b;
            border-color: #334155;
        }
        
        .slider-label {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 0.75rem;
        }
        
        .slider-label-text {
            font-size: 0.875rem;
            font-weight: 600;
            color: #475569;
        }
        
        .dark .slider-label-text {
            color: #cbd5e1;
        }
        
        .slider-value {
            font-size: 0.875rem;
            font-weight: 700;
            color: #f59e0b;
        }
        
        /* Custom Range Slider */
        .time-slider {
            --slider-thumb-start: #f59e0b;
            --slider-thumb-end: #d97706;
            --slider-thumb-shadow: rgba(245, 158, 11, 0.5);
            --slider-thumb-hover-shadow: rgba(245, 158, 11, 0.6);
            height: 10px;
            border-radius: 9999px;
            background: linear-gradient(90deg, #f0f0f0 0%, #dcdcdc 100%);
            outline: none;
            appearance: none;
            -webkit-appearance: none;
            transition: all 0.3s;
        }
        
        .time-slider::-webkit-slider-thumb,
        .numQuestionsSlider::-webkit-slider-thumb {
            -webkit-appearance: none;
            appearance: none;
            width: 30px;
            height: 30px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--slider-thumb-start) 0%, var(--slider-thumb-end) 100%);
            cursor: pointer;
            box-shadow: 0 4px 12px var(--slider-thumb-shadow);
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        
        .time-slider::-webkit-slider-thumb:hover,
        .numQuestionsSlider::-webkit-slider-thumb:hover {
            transform: scale(1.2);
            box-shadow: 0 6px 20px var(--slider-thumb-hover-shadow);
        }
        
        .time-slider::-moz-range-thumb,
        .numQuestionsSlider::-moz-range-thumb {
            width: 30px;
            height: 30px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--slider-thumb-start) 0%, var(--slider-thumb-end) 100%);
            cursor: pointer;
            border: none;
            box-shadow: 0 4px 12px var(--slider-thumb-shadow);
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        
        .time-slider::-moz-range-thumb:hover,
        .numQuestionsSlider::-moz-range-thumb:hover {
            transform: scale(1.2);
            box-shadow: 0 6px 20px var(--slider-thumb-hover-shadow);
        }
        
        .slider-labels {
            display: flex;
            justify-content: space-between;
            margin-top: 0.5rem;
            font-size: 0.75rem;
            font-weight: 700;
            color: #64748b;
        }
        
        .dark .slider-labels {
            color: #94a3b8;
        }
        
        /* Count Presets */
        .count-presets {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 0.5rem;
        }
        
        @media screen and (max-width: 639px) {
            .count-presets {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        
        .count-preset-btn {
            padding: 0.75rem;
            border-radius: 0.75rem;
            border: 2px solid #e2e8f0;
            background: white;
            color: #475569;
            font-weight: 700;
            font-size: 0.875rem;
            cursor: pointer;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
        }
        
        .dark .count-preset-btn {
            background: #1e293b;
            border-color: #334155;
            color: #cbd5e1;
        }
        
        .count-preset-btn:hover {
            transform: translateY(-2px);
            background: linear-gradient(135deg, #6366f1 0%, #4f46e5 100%);
            border-color: #4f46e5;
            color: white;
            box-shadow: 0 6px 16px rgba(79, 70, 229, 0.4);
        }
        
        .count-preset-btn:active {
            transform: translateY(0);
        }
        
        .time-limit-header {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            margin-bottom: 1.5rem;
        }
        
        .time-limit-icon-wrapper {
            background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
            padding: 0.75rem;
            border-radius: 0.75rem;
            box-shadow: 0 2px 8px rgba(251, 191, 36, 0.25);
        }
        
        .dark .time-limit-icon-wrapper {
            background: linear-gradient(135deg, rgba(251, 191, 36, 0.2) 0%, rgba(245, 158, 11, 0.3) 100%);
        }
        
        /* Time Display Card */
        .time-display-card {
            background: white;
            border-radius: 1rem;
            padding: 1.5rem;
            text-align: center;
            border: 2px solid #e2e8f0;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
            transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        }
        
        .dark .time-display-card {
            background: #1e293b;
            border-color: #334155;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
        }
        
        .time-display-card:hover {
            transform: translateY(-3px) scale(1.01);
            box-shadow: 0 12px 24px rgba(0, 0, 0, 0.1);
            border-color: #B8D6D6;
        }
        
        .dark .time-display-card:hover {
            box-shadow: 0 12px 24px rgba(0, 0, 0, 0.4);
            border-color: #088395;
        }
        
        .time-display-value {
            font-size: 3.5rem;
            font-weight: 900;
            background: linear-gradient(135deg, #1e293b 0%, #5A9E9E 100%);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            line-height: 1;
            transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            letter-spacing: -0.02em;
        }
        
        .dark .time-display-value {
            background: linear-gradient(135deg, #f1f5f9 0%, #088395 100%);
            -webkit-background-clip: text;
            background-clip: text;
        }
        
        .time-display-value.updated {
            animation: pulse 0.4s ease-out;
        }
        
        @keyframes pulse {
            0% { transform: scale(1); }
            50% { transform: scale(1.12); }
            100% { transform: scale(1); }
        }
        
        .time-display-label {
            font-size: 0.875rem;
            font-weight: 700;
            color: #64748b;
            text-transform: uppercase;
            letter-spacing: 0.12em;
            margin-top: 0.75rem;
        }
        
        .dark .time-display-label {
            color: #94a3b8;
        }
        
        /* Preset Buttons Grid */
        .preset-buttons {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 0.5rem;
            margin-top: 1.25rem;
        }
        
        @media screen and (max-width: 639px) {
            .preset-buttons {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        
        @media screen and (min-width: 1024px) {
            .preset-buttons {
                grid-template-columns: repeat(6, 1fr);
            }
        }
        
        @media screen and (min-width: 1280px) {
            .preset-buttons {
                grid-template-columns: repeat(8, 1fr);
            }
        }
        
        .preset-btn {
            position: relative;
            padding: 0.75rem 0.5rem;
            border-radius: 0.75rem;
            border: 2px solid #e2e8f0;
            background: white;
            color: #475569;
            font-weight: 700;
            font-size: 0.875rem;
            cursor: pointer;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 0.25rem;
            min-height: 48px;
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
        }
        
        .dark .preset-btn {
            background: #1e293b;
            border-color: #334155;
            color: #cbd5e1;
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
        }
        
        .preset-btn:hover:not(:disabled) {
            border-color: #f59e0b;
            background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(245, 158, 11, 0.2);
        }
        
        .dark .preset-btn:hover:not(:disabled) {
            background: linear-gradient(135deg, rgba(251, 191, 36, 0.2) 0%, rgba(245, 158, 11, 0.15) 100%);
            border-color: #fbbf24;
            box-shadow: 0 4px 12px rgba(245, 158, 11, 0.3);
        }
        
        .preset-btn:focus-visible {
            outline: 2px solid #f59e0b;
            outline-offset: 2px;
        }
        
        .preset-btn.selected {
            background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
            border-color: #d97706;
            color: white;
            box-shadow: 0 6px 16px rgba(245, 158, 11, 0.5);
            transform: translateY(-2px);
            font-weight: 800;
        }
        
        .preset-btn.selected:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 20px rgba(245, 158, 11, 0.6);
        }
        
        .preset-btn:disabled {
            opacity: 0.5;
            cursor: not-allowed;
        }

        /* Preset Mode Buttons */
        .preset-mode-btn {
            position: relative;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            overflow: hidden;
        }

        .preset-mode-btn::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(135deg, transparent 0%, rgba(255, 255, 255, 0.1) 100%);
            pointer-events: none;
        }

        .preset-mode-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
        }

        .dark .preset-mode-btn:hover {
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
        }

        .preset-mode-btn:active {
            transform: translateY(0);
        }
        
        /* Slider Container */
        .slider-container {
            margin-top: 1.5rem;
            padding: 1rem;
            background: white;
            border-radius: 0.75rem;
            border: 1px solid #e2e8f0;
        }
        
        .dark .slider-container {
            background: #1e293b;
            border-color: #334155;
        }
        
        .slider-label {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 0.75rem;
        }
        
        .slider-label-text {
            font-size: 0.875rem;
            font-weight: 600;
            color: #475569;
        }
        
        .dark .slider-label-text {
            color: #cbd5e1;
        }
        
        .slider-value {
            font-size: 0.875rem;
            font-weight: 700;
            color: #f59e0b;
        }
        
        /* Custom Range Slider */
        .time-slider {
            --slider-thumb-start: #f59e0b;
            --slider-thumb-end: #d97706;
            --slider-thumb-shadow: rgba(245, 158, 11, 0.5);
            --slider-thumb-hover-shadow: rgba(245, 158, 11, 0.6);
            height: 10px;
            border-radius: 9999px;
            background: linear-gradient(90deg, #f0f0f0 0%, #dcdcdc 100%);
            outline: none;
            appearance: none;
            -webkit-appearance: none;
            transition: all 0.3s;
        }
        
        .time-slider::-webkit-slider-thumb,
        .numQuestionsSlider::-webkit-slider-thumb {
            -webkit-appearance: none;
            appearance: none;
            width: 30px;
            height: 30px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--slider-thumb-start) 0%, var(--slider-thumb-end) 100%);
            cursor: pointer;
            box-shadow: 0 4px 12px var(--slider-thumb-shadow);
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        
        .time-slider::-webkit-slider-thumb:hover,
        .numQuestionsSlider::-webkit-slider-thumb:hover {
            transform: scale(1.2);
            box-shadow: 0 6px 20px var(--slider-thumb-hover-shadow);
        }
        
        .time-slider::-moz-range-thumb,
        .numQuestionsSlider::-moz-range-thumb {
            width: 30px;
            height: 30px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--slider-thumb-start) 0%, var(--slider-thumb-end) 100%);
            cursor: pointer;
            border: none;
            box-shadow: 0 4px 12px var(--slider-thumb-shadow);
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        
        .time-slider::-moz-range-thumb:hover,
        .numQuestionsSlider::-moz-range-thumb:hover {
            transform: scale(1.2);
            box-shadow: 0 6px 20px var(--slider-thumb-hover-shadow);
        }
        
        .slider-labels {
            display: flex;
            justify-content: space-between;
            margin-top: 0.5rem;
            font-size: 0.75rem;
            font-weight: 700;
            color: #64748b;
        }
        
        .dark .slider-labels {
            color: #94a3b8;
        }
        
        /* Count Presets */
        .count-presets {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 0.5rem;
        }
        
        @media screen and (max-width: 639px) {
            .count-presets {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        
        .count-preset-btn {
            padding: 0.75rem;
            border-radius: 0.75rem;
            border: 2px solid #e2e8f0;
            background: white;
            color: #475569;
            font-weight: 700;
            font-size: 0.875rem;
            cursor: pointer;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
        }
        
        .dark .count-preset-btn {
            background: #1e293b;
            border-color: #334155;
            color: #cbd5e1;
        }
        
        .count-preset-btn:hover {
            transform: translateY(-2px);
            background: linear-gradient(135deg, #6366f1 0%, #4f46e5 100%);
            border-color: #4f46e5;
            color: white;
            box-shadow: 0 6px 16px rgba(79, 70, 229, 0.4);
        }
        
        .count-preset-btn:active {
            transform: translateY(0);
        }
        
        .time-limit-header {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            margin-bottom: 1.5rem;
        }
        
        .time-limit-icon-wrapper {
            background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
            padding: 0.75rem;
            border-radius: 0.75rem;
            box-shadow: 0 2px 8px rgba(251, 191, 36, 0.25);
        }
        
        .dark .time-limit-icon-wrapper {
            background: linear-gradient(135deg, rgba(251, 191, 36, 0.2) 0%, rgba(245, 158, 11, 0.3) 100%);
        }
        
        /* Time Display Card */
        .time-display-card {
            background: white;
            border-radius: 1rem;
            padding: 1.5rem;
            text-align: center;
            border: 2px solid #e2e8f0;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
            transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        }
        
        .dark .time-display-card {
            background: #1e293b;
            border-color: #334155;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
        }
        
        .time-display-card:hover {
            transform: translateY(-3px) scale(1.01);
            box-shadow: 0 12px 24px rgba(0, 0, 0, 0.1);
            border-color: #B8D6D6;
        }
        
        .dark .time-display-card:hover {
            box-shadow: 0 12px 24px rgba(0, 0, 0, 0.4);
            border-color: #088395;
        }
        
        .time-display-value {
            font-size: 3.5rem;
            font-weight: 900;
            background: linear-gradient(135deg, #1e293b 0%, #5A9E9E 100%);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            line-height: 1;
            transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            letter-spacing: -0.02em;
        }
        
        .dark .time-display-value {
            background: linear-gradient(135deg, #f1f5f9 0%, #088395 100%);
            -webkit-background-clip: text;
            background-clip: text;
        }
        
        .time-display-value.updated {
            animation: pulse 0.4s ease-out;
        }
        
        @keyframes pulse {
            0% { transform: scale(1); }
            50% { transform: scale(1.12); }
            100% { transform: scale(1); }
        }
        
        .time-display-label {
            font-size: 0.875rem;
            font-weight: 700;
            color: #64748b;
            text-transform: uppercase;
            letter-spacing: 0.12em;
            margin-top: 0.75rem;
        }
        
        .dark .time-display-label {
            color: #94a3b8;
        }
        
        /* Preset Buttons Grid */
        .preset-buttons {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 0.5rem;
            margin-top: 1.25rem;
        }
        
        @media screen and (max-width: 639px) {
            .preset-buttons {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        
        @media screen and (min-width: 1024px) {
            .preset-buttons {
                grid-template-columns: repeat(6, 1fr);
            }
        }
        
        @media screen and (min-width: 1280px) {
            .preset-buttons {
                grid-template-columns: repeat(8, 1fr);
            }
        }
        
        .preset-btn {
            position: relative;
            padding: 0.75rem 0.5rem;
            border-radius: 0.75rem;
            border: 2px solid #e2e8f0;
            background: white;
            color: #475569;
            font-weight: 700;
            font-size: 0.875rem;
            cursor: pointer;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 0.25rem;
            min-height: 48px;
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
        }
        
        .dark .preset-btn {
            background: #1e293b;
            border-color: #334155;
            color: #cbd5e1;
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
        }
        
        .preset-btn:hover:not(:disabled) {
            border-color: #f59e0b;
            background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(245, 158, 11, 0.2);
        }
        
        .dark .preset-btn:hover:not(:disabled) {
            background: linear-gradient(135deg, rgba(251, 191, 36, 0.2) 0%, rgba(245, 158, 11, 0.15) 100%);
            border-color: #fbbf24;
            box-shadow: 0 4px 12px rgba(245, 158, 11, 0.3);
        }
        
        .preset-btn:focus-visible {
            outline: 2px solid #f59e0b;
            outline-offset: 2px;
        }
        
        .preset-btn.selected {
            background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
            border-color: #d97706;
            color: white;
            box-shadow: 0 6px 16px rgba(245, 158, 11, 0.5);
            transform: translateY(-2px);
            font-weight: 800;
        }
        
        .preset-btn.selected:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 20px rgba(245, 158, 11, 0.6);
        }
        
        .preset-btn:disabled {
            opacity: 0.5;
            cursor: not-allowed;
        }

        /* Preset Mode Buttons */
        .preset-mode-btn {
            position: relative;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            overflow: hidden;
        }

        .preset-mode-btn::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(135deg, transparent 0%, rgba(255, 255, 255, 0.1) 100%);
            pointer-events: none;
        }

        .preset-mode-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
        }

        .dark .preset-mode-btn:hover {
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
        }

        .preset-mode-btn:active {
            transform: translateY(0);
        }
        
        /* Slider Container */
        .slider-container {
            margin-top: 1.5rem;
            padding: 1rem;
            background: white;
            border-radius: 0.75rem;
            border: 1px solid #e2e8f0;
        }
        
        .dark .slider-container {
            background: #1e293b;
            border-color: #334155;
        }
        
        .slider-label {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 0.75rem;
        }
        
        .slider-label-text {
            font-size: 0.875rem;
            font-weight: 600;
            color: #475569;
        }
        
        .dark .slider-label-text {
            color: #cbd5e1;
        }
        
        .slider-value {
            font-size: 0.875rem;
            font-weight: 700;
            color: #f59e0b;
        }
        
        /* Custom Range Slider */
        .time-slider {
            --slider-thumb-start: #f59e0b;
            --slider-thumb-end: #d97706;
            --slider-thumb-shadow: rgba(245, 158, 11, 0.5);
            --slider-thumb-hover-shadow: rgba(245, 158, 11, 0.6);
            height: 10px;
            border-radius: 9999px;
            background: linear-gradient(90deg, #f0f0f0 0%, #dcdcdc 100%);
            outline: none;
            appearance: none;
            -webkit-appearance: none;
            transition: all 0.3s;
        }
        
        .time-slider::-webkit-slider-thumb,
        .numQuestionsSlider::-webkit-slider-thumb {
            -webkit-appearance: none;
            appearance: none;
            width: 30px;
            height: 30px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--slider-thumb-start) 0%, var(--slider-thumb-end) 100%);
            cursor: pointer;
            box-shadow: 0 4px 12px var(--slider-thumb-shadow);
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        
        .time-slider::-webkit-slider-thumb:hover,
        .numQuestionsSlider::-webkit-slider-thumb:hover {
            transform: scale(1.2);
            box-shadow: 0 6px 20px var(--slider-thumb-hover-shadow);
        }
        
        .time-slider::-moz-range-thumb,
        .numQuestionsSlider::-moz-range-thumb {
            width: 30px;
            height: 30px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--slider-thumb-start) 0%, var(--slider-thumb-end) 100%);
            cursor: pointer;
            border: none;
            box-shadow: 0 4px 12px var(--slider-thumb-shadow);
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        
        .time-slider::-moz-range-thumb:hover,
        .numQuestionsSlider::-moz-range-thumb:hover {
            transform: scale(1.2);
            box-shadow: 0 6px 20px var(--slider-thumb-hover-shadow);
        }
        
        .slider-labels {
            display: flex;
            justify-content: space-between;
            margin-top: 0.5rem;
            font-size: 0.75rem;
            font-weight: 700;
            color: #64748b;
        }
        
        .dark .slider-labels {
            color: #94a3b8;
        }
        
        /* Count Presets */
        .count-presets {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 0.5rem;
        }
        
        @media screen and (max-width: 639px) {
            .count-presets {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        
        .count-preset-btn {
            padding: 0.75rem;
            border-radius: 0.75rem;
            border: 2px solid #e2e8f0;
            background: white;
            color: #475569;
            font-weight: 700;
            font-size: 0.875rem;
            cursor: pointer;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
        }
        
        .dark .count-preset-btn {
            background: #1e293b;
            border-color: #334155;
            color: #cbd5e1;
        }
        
        .count-preset-btn:hover {
            transform: translateY(-2px);
            background: linear-gradient(135deg, #6366f1 0%, #4f46e5 100%);
            border-color: #4f46e5;
            color: white;
            box-shadow: 0 6px 16px rgba(79, 70, 229, 0.4);
        }
        
        .count-preset-btn:active {
            transform: translateY(0);
        }
        
        .time-limit-header {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            margin-bottom: 1.5rem;
        }
        
        .time-limit-icon-wrapper {
            background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
            padding: 0.75rem;
            border-radius: 0.75rem;
            box-shadow: 0 2px 8px rgba(251, 191, 36, 0.25);
        }
        
        .dark .time-limit-icon-wrapper {
            background: linear-gradient(135deg, rgba(251, 191, 36, 0.2) 0%, rgba(245, 158, 11, 0.3) 100%);
        }
        
        /* Time Display Card */
        .time-display-card {
            background: white;
            border-radius: 1rem;
            padding: 1.5rem;
            text-align: center;
            border: 2px solid #e2e8f0;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
            transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        }
        
        .dark .time-display-card {
            background: #1e293b;
            border-color: #334155;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
        }
        
        .time-display-card:hover {
            transform: translateY(-3px) scale(1.01);
            box-shadow: 0 12px 24px rgba(0, 0, 0, 0.1);
            border-color: #B8D6D6;
        }
        
        .dark .time-display-card:hover {
            box-shadow: 0 12px 24px rgba(0, 0, 0, 0.4);
            border-color: #088395;
        }
        
        .time-display-value {
            font-size: 3.5rem;
            font-weight: 900;
            background: linear-gradient(135deg, #1e293b 0%, #5A9E9E 100%);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            line-height: 1;
            transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            letter-spacing: -0.02em;
        }
        
        .dark .time-display-value {
            background: linear-gradient(135deg, #f1f5f9 0%, #088395 100%);
            -webkit-background-clip: text;
            background-clip: text;
        }
        
        .time-display-value.updated {
            animation: pulse 0.4s ease-out;
        }
        
        @keyframes pulse {
            0% { transform: scale(1); }
            50% { transform: scale(1.12); }
            100% { transform: scale(1); }
        }
        
        .time-display-label {
            font-size: 0.875rem;
            font-weight: 700;
            color: #64748b;
            text-transform: uppercase;
            letter-spacing: 0.12em;
            margin-top: 0.75rem;
        }
        
        .dark .time-display-label {
            color: #94a3b8;
        }
        
        /* Preset Buttons Grid */
        .preset-buttons {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 0.5rem;
            margin-top: 1.25rem;
        }
        
        @media screen and (max-width: 639px) {
            .preset-buttons {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        
        @media screen and (min-width: 1024px) {
            .preset-buttons {
                grid-template-columns: repeat(6, 1fr);
            }
        }
        
        @media screen and (min-width: 1280px) {
            .preset-buttons {
                grid-template-columns: repeat(8, 1fr);
            }
        }
        
        .preset-btn {
            position: relative;
            padding: 0.75rem 0.5rem;
            border-radius: 0.75rem;
            border: 2px solid #e2e8f0;
            background: white;
            color: #475569;
            font-weight: 700;
            font-size: 0.875rem;
            cursor: pointer;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 0.25rem;
            min-height: 48px;
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
        }
        
        .dark .preset-btn {
            background: #1e293b;
            border-color: #334155;
            color: #cbd5e1;
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
        }
        
        .preset-btn:hover:not(:disabled) {
            border-color: #f59e0b;
            background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(245, 158, 11, 0.2);
        }
        
        .dark .preset-btn:hover:not(:disabled) {
            background: linear-gradient(135deg, rgba(251, 191, 36, 0.2) 0%, rgba(245, 158, 11, 0.15) 100%);
            border-color: #fbbf24;
            box-shadow: 0 4px 12px rgba(245, 158, 11, 0.3);
        }
        
        .preset-btn:focus-visible {
            outline: 2px solid #f59e0b;
            outline-offset: 2px;
        }
        
        .preset-btn.selected {
            background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
            border-color: #d97706;
            color: white;
            box-shadow: 0 6px 16px rgba(245, 158, 11, 0.5);
            transform: translateY(-2px);
            font-weight: 800;
        }
        
        .preset-btn.selected:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 20px rgba(245, 158, 11, 0.6);
        }
        
        .preset-btn:disabled {
            opacity: 0.5;
            cursor: not-allowed;
        }

        /* Preset Mode Buttons */
        .preset-mode-btn {
            position: relative;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            overflow: hidden;
        }

        .preset-mode-btn::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(135deg, transparent 0%, rgba(255, 255, 255, 0.1) 100%);
            pointer-events: none;
        }

        .preset-mode-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
        }

        .dark .preset-mode-btn:hover {
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
        }

        .preset-mode-btn:active {
            transform: translateY(0);
        }
        
        /* Slider Container */
        .slider-container {
            margin-top: 1.5rem;
            padding: 1rem;
            background: white;
            border-radius: 0.75rem;
            border: 1px solid #e2e8f0;
        }
        
        .dark .slider-container {
            background: #1e293b;
            border-color: #334155;
        }
        
        .slider-label {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 0.75rem;
        }
        
        .slider-label-text {
            font-size: 0.875rem;
            font-weight: 600;
            color: #475569;
        }
        
        .dark .slider-label-text {
            color: #cbd5e1;
        }
        
        .slider-value {
            font-size: 0.875rem;
            font-weight: 700;
            color: #f59e0b;
        }
        
        /* Custom Range Slider */
        .time-slider {
            --slider-thumb-start: #f59e0b;
            --slider-thumb-end: #d97706;
            --slider-thumb-shadow: rgba(245, 158, 11, 0.5);
            --slider-thumb-hover-shadow: rgba(245, 158, 11, 0.6);
            height: 10px;
            border-radius: 9999px;
            background: linear-gradient(90deg, #f0f0f0 0%, #dcdcdc 100%);
            outline: none;
            appearance: none;
            -webkit-appearance: none;
            transition: all 0.3s;
        }
        
        .time-slider::-webkit-slider-thumb,
        .numQuestionsSlider::-webkit-slider-thumb {
            -webkit-appearance: none;
            appearance: none;
            width: 30px;
            height: 30px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--slider-thumb-start) 0%, var(--slider-thumb-end) 100%);
            cursor: pointer;
            box-shadow: 0 4px 12px var(--slider-thumb-shadow);
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        
        .time-slider::-webkit-slider-thumb:hover,
        .numQuestionsSlider::-webkit-slider-thumb:hover {
            transform: scale(1.2);
            box-shadow: 0 6px 20px var(--slider-thumb-hover-shadow);
        }
        
        .time-slider::-moz-range-thumb,
        .numQuestionsSlider::-moz-range-thumb {
            width: 30px;
            height: 30px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--slider-thumb-start) 0%, var(--slider-thumb-end) 100%);
            cursor: pointer;
            border: none;
            box-shadow: 0 4px 12px var(--slider-thumb-shadow);
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        
        .time-slider::-moz-range-thumb:hover,
        .numQuestionsSlider::-moz-range-thumb:hover {
            transform: scale(1.2);
            box-shadow: 0 6px 20px var(--slider-thumb-hover-shadow);
        }
        
        .slider-labels {
            display: flex;
            justify-content: space-between;
            margin-top: 0.5rem;
            font-size: 0.75rem;
            font-weight: 700;
            color: #64748b;
        }
        
        .dark .slider-labels {
            color: #94a3b8;
        }
        
        /* Count Presets */
        .count-presets {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 0.5rem;
        }
        
        @media screen and (max-width: 639px) {
            .count-presets {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        
        .count-preset-btn {
            padding: 0.75rem;
            border-radius: 0.75rem;
            border: 2px solid #e2e8f0;
            background: white;
            color: #475569;
            font-weight: 700;
            font-size: 0.875rem;
            cursor: pointer;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
        }
        
        .dark .count-preset-btn {
            background: #1e293b;
            border-color: #334155;
            color: #cbd5e1;
        }
        
        .count-preset-btn:hover {
            transform: translateY(-2px);
            background: linear-gradient(135deg, #6366f1 0%, #4f46e5 100%);
            border-color: #4f46e5;
            color: white;
            box-shadow: 0 6px 16px rgba(79, 70, 229, 0.4);
        }
        
        .count-preset-btn:active {
            transform: translateY(0);
        }
        
        .time-limit-header {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            margin-bottom: 1.5rem;
        }
        
        .time-limit-icon-wrapper {
            background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
            padding: 0.75rem;
            border-radius: 0.75rem;
            box-shadow: 0 2px 8px rgba(251, 191, 36, 0.25);
        }
        
        .dark .time-limit-icon-wrapper {
            background: linear-gradient(135deg, rgba(251, 191, 36, 0.2) 0%, rgba(245, 158, 11, 0.3) 100%);
        }
        
        /* Time Display Card */
        .time-display-card {
            background: white;
            border-radius: 1rem;
            padding: 1.5rem;
            text-align: center;
            border: 2px solid #e2e8f0;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
            transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        }
        
        .dark .time-display-card {
            background: #1e293b;
            border-color: #334155;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
        }
        
        .time-display-card:hover {
            transform: translateY(-3px) scale(1.01);
            box-shadow: 0 12px 24px rgba(0, 0, 0, 0.1);
            border-color: #B8D6D6;
        }
        
        .dark .time-display-card:hover {
            box-shadow: 0 12px 24px rgba(0, 0, 0, 0.4);
            border-color: #088395;
        }
        
        .time-display-value {
            font-size: 3.5rem;
            font-weight: 900;
            background: linear-gradient(135deg, #1e293b 0%, #5A9E9E 100%);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            line-height: 1;
            transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            letter-spacing: -0.02em;
        }
        
        .dark .time-display-value {
            background: linear-gradient(135deg, #f1f5f9 0%, #088395 100%);
            -webkit-background-clip: text;
            background-clip: text;
        }
        
        .time-display-value.updated {
            animation: pulse 0.4s ease-out;
        }
        
        @keyframes pulse {
            0% { transform: scale(1); }
            50% { transform: scale(1.12); }
            100% { transform: scale(1); }
        }
        
        .time-display-label {
            font-size: 0.875rem;
            font-weight: 700;
            color: #64748b;
            text-transform: uppercase;
            letter-spacing: 0.12em;
            margin-top: 0.75rem;
        }
        
        .dark .time-display-label {
            color: #94a3b8;
        }
        
        /* Preset Buttons Grid */
        .preset-buttons {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 0.5rem;
            margin-top: 1.25rem;
        }
        
        @media screen and (max-width: 639px) {
            .preset-buttons {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        
        @media screen and (min-width: 1024px) {
            .preset-buttons {
                grid-template-columns: repeat(6, 1fr);
            }
        }
        
        @media screen and (min-width: 1280px) {
            .preset-buttons {
                grid-template-columns: repeat(8, 1fr);
            }
        }
        
        .preset-btn {
            position: relative;
            padding: 0.75rem 0.5rem;
            border-radius: 0.75rem;
            border: 2px solid #e2e8f0;
            background: white;
            color: #475569;
            font-weight: 700;
            font-size: 0.875rem;
            cursor: pointer;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 0.25rem;
            min-height: 48px;
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
        }
        
        .dark .preset-btn {
            background: #1e293b;
            border-color: #334155;
            color: #cbd5e1;
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
        }
        
        .preset-btn:hover:not(:disabled) {
            border-color: #f59e0b;
            background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(245, 158, 11, 0.2);
        }
        
        .dark .preset-btn:hover:not(:disabled) {
            background: linear-gradient(135deg, rgba(251, 191, 36, 0.2) 0%, rgba(245, 158, 11, 0.15) 100%);
            border-color: #fbbf24;
            box-shadow: 0 4px 12px rgba(245, 158, 11, 0.3);
        }
        
        .preset-btn:focus-visible {
            outline: 2px solid #f59e0b;
            outline-offset: 2px;
        }
        
        .preset-btn.selected {
            background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
            border-color: #d97706;
            color: white;
            box-shadow: 0 6px 16px rgba(245, 158, 11, 0.5);
            transform: translateY(-2px);
            font-weight: 800;
        }
        
        .preset-btn.selected:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 20px rgba(245, 158, 11, 0.6);
        }
        
        .preset-btn:disabled {
            opacity: 0.5;
            cursor: not-allowed;
        }

        /* Preset Mode Buttons */
        .preset-mode-btn {
            position: relative;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            overflow: hidden;
        }

        .preset-mode-btn::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(135deg, transparent 0%, rgba(255, 255, 255, 0.1) 100%);
            pointer-events: none;
        }

        .preset-mode-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
        }

        .dark .preset-mode-btn:hover {
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
        }

        .preset-mode-btn:active {
            transform: translateY(0);
        }
        
        /* Slider Container */
        .slider-container {
            margin-top: 1.5rem;
            padding: 1rem;
            background: white;
            border-radius: 0.75rem;
            border: 1px solid #e2e8f0;
        }
        
        .dark .slider-container {
            background: #1e293b;
            border-color: #334155;
        }
        
        .slider-label {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 0.75rem;
        }
        
        .slider-label-text {
            font-size: 0.875rem;
            font-weight: 600;
            color: #475569;
        }
        
        .dark .slider-label-text {
            color: #cbd5e1;
        }
        
        .slider-value {
            font-size: 0.875rem;
            font-weight: 700;
            color: #f59e0b;
        }
        
        /* Custom Range Slider */
        .time-slider {
            --slider-thumb-start: #f59e0b;
            --slider-thumb-end: #d97706;
            --slider-thumb-shadow: rgba(245, 158, 11, 0.5);
            --slider-thumb-hover-shadow: rgba(245, 158, 11, 0.6);
            height: 10px;
            border-radius: 9999px;
            background: linear-gradient(90deg, #f0f0f0 0%, #dcdcdc 100%);
            outline: none;
            appearance: none;
            -webkit-appearance: none;
            transition: all 0.3s;
        }
        
        .time-slider::-webkit-slider-thumb,
        .numQuestionsSlider::-webkit-slider-thumb {
            -webkit-appearance: none;
            appearance: none;
            width: 30px;
            height: 30px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--slider-thumb-start) 0%, var(--slider-thumb-end) 100%);
            cursor: pointer;
            box-shadow: 0 4px 12px var(--slider-thumb-shadow);
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        
        .time-slider::-webkit-slider-thumb:hover,
        .numQuestionsSlider::-webkit-slider-thumb:hover {
            transform: scale(1.2);
            box-shadow: 0 6px 20px var(--slider-thumb-hover-shadow);
        }
        
        .time-slider::-moz-range-thumb,
        .numQuestionsSlider::-moz-range-thumb {
            width: 30px;
            height: 30px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--slider-thumb-start) 0%, var(--slider-thumb-end) 100%);
            cursor: pointer;
            border: none;
            box-shadow: 0 4px 12px var(--slider-thumb-shadow);
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        
        .time-slider::-moz-range-thumb:hover,
        .numQuestionsSlider::-moz-range-thumb:hover {
            transform: scale(1.2);
            box-shadow: 0 6px 20px var(--slider-thumb-hover-shadow);
        }
        
        .slider-labels {
            display: flex;
            justify-content: space-between;
            margin-top: 0.5rem;
            font-size: 0.75rem;
            font-weight: 700;
            color: #64748b;
        }
        
        .dark .slider-labels {
            color: #94a3b8;
        }
        
        /* Count Presets */
        .count-presets {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 0.5rem;
        }
        
        @media screen and (max-width: 639px) {
            .count-presets {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        
        .count-preset-btn {
            padding: 0.75rem;
            border-radius: 0.75rem;
            border: 2px solid #e2e8f0;
            background: white;
            color: #475569;
            font-weight: 700;
            font-size: 0.875rem;
            cursor: pointer;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
        }
        
        .dark .count-preset-btn {
            background: #1e293b;
            border-color: #334155;
            color: #cbd5e1;
        }
        
        .count-preset-btn:hover {
            transform: translateY(-2px);
            background: linear-gradient(135deg, #6366f1 0%, #4f46e5 100%);
            border-color: #4f46e5;
            color: white;
            box-shadow: 0 6px 16px rgba(79, 70, 229, 0.4);
        }
        
        .count-preset-btn:active {
            transform: translateY(0);
        }
        
        .time-limit-header {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            margin-bottom: 1.5rem;
        }
        
        .time-limit-icon-wrapper {
            background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
            padding: 0.75rem;
            border-radius: 0.75rem;
            box-shadow: 0 2px 8px rgba(251, 191, 36, 0.25);
        }
        
        .dark .time-limit-icon-wrapper {
            background: linear-gradient(135deg, rgba(251, 191, 36, 0.2) 0%, rgba(245, 158, 11, 0.3) 100%);
        }
        
        /* Time Display Card */
        .time-display-card {
            background: white;
            border-radius: 1rem;
            padding: 1.5rem;
            text-align: center;
            border: 2px solid #e2e8f0;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
            transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        }
        
        .dark .time-display-card {
            background: #1e293b;
            border-color: #334155;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
        }
        
        .time-display-card:hover {
            transform: translateY(-3px) scale(1.01);
            box-shadow: 0 12px 24px rgba(0, 0, 0, 0.1);
            border-color: #B8D6D6;
        }
        
        .dark .time-display-card:hover {
            box-shadow: 0 12px 24px rgba(0, 0, 0, 0.4);
            border-color: #088395;
        }
        
        .time-display-value {
            font-size: 3.5rem;
            font-weight: 900;
            background: linear-gradient(135deg, #1e293b 0%, #5A9E9E 100%);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            line-height: 1;
            transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            letter-spacing: -0.02em;
        }
        
        .dark .time-display-value {
            background: linear-gradient(135deg, #f1f5f9 0%, #088395 100%);
            -webkit-background-clip: text;
            background-clip: text;
        }
        
        .time-display-value.updated {
            animation: pulse 0.4s ease-out;
        }
        
        @keyframes pulse {
            0% { transform: scale(1); }
            50% { transform: scale(1.12); }
            100% { transform: scale(1); }
        }
        
        .time-display-label {
            font-size: 0.875rem;
            font-weight: 700;
            color: #64748b;
            text-transform: uppercase;
            letter-spacing: 0.12em;
            margin-top: 0.75rem;
        }
        
        .dark .time-display-label {
            color: #94a3b8;
        }
        
        /* Preset Buttons Grid */
        .preset-buttons {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 0.5rem;
            margin-top: 1.25rem;
        }
        
        @media screen and (max-width: 639px) {
            .preset-buttons {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        
        @media screen and (min-width: 1024px) {
            .preset-buttons {
                grid-template-columns: repeat(6, 1fr);
            }
        }
        
        @media screen and (min-width: 1280px) {
            .preset-buttons {
                grid-template-columns: repeat(8, 1fr);
            }
        }
        
        .preset-btn {
            position: relative;
            padding: 0.75rem 0.5rem;
            border-radius: 0.75rem;
            border: 2px solid #e2e8f0;
            background: white;
            color: #475569;
            font-weight: 700;
            font-size: 0.875rem;
            cursor: pointer;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 0.25rem;
            min-height: 48px;
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
        }
        
        .dark .preset-btn {
            background: #1e293b;
            border-color: #334155;
            color: #cbd5e1;
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
        }
        
        .preset-btn:hover:not(:disabled) {
            border-color: #f59e0b;
            background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(245, 158, 11, 0.2);
        }
        
        .dark .preset-btn:hover:not(:disabled) {
            background: linear-gradient(135deg, rgba(251, 191, 36, 0.2) 0%, rgba(245, 158, 11, 0.15) 100%);
            border-color: #fbbf24;
            box-shadow: 0 4px 12px rgba(245, 158, 11, 0.3);
        }
        
        .preset-btn:focus-visible {
            outline: 2px solid #f59e0b;
            outline-offset: 2px;
        }
        
        .preset-btn.selected {
            background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
            border-color: #d97706;
            color: white;
            box-shadow: 0 6px 16px rgba(245, 158, 11, 0.5);
            transform: translateY(-2px);
            font-weight: 800;
        }
        
        .preset-btn.selected:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 20px rgba(245, 158, 11, 0.6);
        }
        
        .preset-btn:disabled {
            opacity: 0.5;
            cursor: not-allowed;
        }

        /* Preset Mode Buttons */
        .preset-mode-btn {
            position: relative;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            overflow: hidden;
        }

        .preset-mode-btn::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(135deg, transparent 0%, rgba(255, 255, 255, 0.1) 100%);
            pointer-events: none;
        }

        .preset-mode-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
        }

        .dark .preset-mode-btn:hover {
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
        }

        .preset-mode-btn:active {
            transform: translateY(0);
        }
        
        /* Slider Container */
        .slider-container {
            margin-top: 1.5rem;
            padding: 1rem;
            background: white;
            border-radius: 0.75rem;
            border: 1px solid #e2e8f0;
        }
        
        .dark .slider-container {
            background: #1e293b;
            border-color: #334155;
        }
        
        .slider-label {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 0.75rem;
        }
        
        .slider-label-text {
            font-size: 0.875rem;
            font-weight: 600;
            color: #475569;
        }
        
        .dark .slider-label-text {
            color: #cbd5e1;
        }
        
        .slider-value {
            font-size: 0.875rem;
            font-weight: 700;
            color: #f59e0b;
        }
        
        /* Custom Range Slider */
        .time-slider {
            --slider-thumb-start: #f59e0b;
            --slider-thumb-end: #d97706;
            --slider-thumb-shadow: rgba(245, 158, 11, 0.5);
            --slider-thumb-hover-shadow: rgba(245, 158, 11, 0.6);
            height: 10px;
            border-radius: 9999px;
            background: linear-gradient(90deg, #f0f0f0 0%, #dcdcdc 100%);
            outline: none;
            appearance: none;
            -webkit-appearance: none;
            transition: all 0.3s;
        }
        
        .time-slider::-webkit-slider-thumb,
        .numQuestionsSlider::-webkit-slider-thumb {
            -webkit-appearance: none;
            appearance: none;
            width: 30px;
            height: 30px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--slider-thumb-start) 0%, var(--slider-thumb-end) 100%);
            cursor: pointer;
            box-shadow: 0 4px 12px var(--slider-thumb-shadow);
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        
        .time-slider::-webkit-slider-thumb:hover,
        .numQuestionsSlider::-webkit-slider-thumb:hover {
            transform: scale(1.2);
            box-shadow: 0 6px 20px var(--slider-thumb-hover-shadow);
        }
        
        .time-slider::-moz-range-thumb,
        .numQuestionsSlider::-moz-range-thumb {
            width: 30px;
            height: 30px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--slider-thumb-start) 0%, var(--slider-thumb-end) 100%);
            cursor: pointer;
            border: none;
            box-shadow: 0 4px 12px var(--slider-thumb-shadow);
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        
        .time-slider::-moz-range-thumb:hover,
        .numQuestionsSlider::-moz-range-thumb:hover {
            transform: scale(1.2);
            box-shadow: 0 6px 20px var(--slider-thumb-hover-shadow);
        }
        
        .slider-labels {
            display: flex;
            justify-content: space-between;
            margin-top: 0.5rem;
            font-size: 0.75rem;
            font-weight: 700;
            color: #64748b;
        }
        
        .dark .slider-labels {
            color: #94a3b8;
        }
        
        /* Count Presets */
        .count-presets {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 0.5rem;
        }
        
        @media screen and (max-width: 639px) {
            .count-presets {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        
        .count-preset-btn {
            padding: 0.75rem;
            border-radius: 0.75rem;
            border: 2px solid #e2e8f0;
            background: white;
            color: #475569;
            font-weight: 700;
            font-size: 0.875rem;
            cursor: pointer;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
        }
        
        .dark .count-preset-btn {
            background: #1e293b;
            border-color: #334155;
            color: #cbd5e1;
        }
        
        .count-preset-btn:hover {
            transform: translateY(-2px);
            background: linear-gradient(135deg, #6366f1 0%, #4f46e5 100%);
            border-color: #4f46e5;
            color: white;
            box-shadow: 0 6px 16px rgba(79, 70, 229, 0.4);
        }
        
        .count-preset-btn:active {
            transform: translateY(0);
        }
        
        .time-limit-header {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            margin-bottom: 1.5rem;
        }
        
        .time-limit-icon-wrapper {
            background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
            padding: 0.75rem;
            border-radius: 0.75rem;
            box-shadow: 0 2px 8px rgba(251, 191, 36, 0.25);
        }
        
        .dark .time-limit-icon-wrapper {
            background: linear-gradient(135deg, rgba(251, 191, 36, 0.2) 0%, rgba(245, 158, 11, 0.3) 100%);
        }
        
        /* Time Display Card */
        .time-display-card {
            background: white;
            border-radius: 1rem;
            padding: 1.5rem;
            text-align: center;
            border: 2px solid #e2e8f0;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
            transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        }
        
        .dark .time-display-card {
            background: #1e293b;
            border-color: #334155;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
        }
        
        .time-display-card:hover {
            transform: translateY(-3px) scale(1.01);
            box-shadow: 0 12px 24px rgba(0, 0, 0, 0.1);
            border-color: #B8D6D6;
        }
        
        .dark .time-display-card:hover {
            box-shadow: 0 12px 24px rgba(0, 0, 0, 0.4);
            border-color: #088395;
        }
        
        .time-display-value {
            font-size: 3.5rem;
            font-weight: 900;
            background: linear-gradient(135deg, #1e293b 0%, #5A9E9E 100%);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            line-height: 1;
            transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            letter-spacing: -0.02em;
        }
        
        .dark .time-display-value {
            background: linear-gradient(135deg, #f1f5f9 0%, #088395 100%);
            -webkit-background-clip: text;
            background-clip: text;
        }
        
        .time-display-value.updated {
            animation: pulse 0.4s ease-out;
        }
        
        @keyframes pulse {
            0% { transform: scale(1); }
            50% { transform: scale(1.12); }
            100% { transform: scale(1); }
        }
        
        .time-display-label {
            font-size: 0.875rem;
            font-weight: 700;
            color: #64748b;
            text-transform: uppercase;
            letter-spacing: 0.12em;
            margin-top: 0.75rem;
        }
        
        .dark .time-display-label {
            color: #94a3b8;
        }
        
        /* Preset Buttons Grid */
        .preset-buttons {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 0.5rem;
            margin-top: 1.25rem;
        }
        
        @media screen and (max-width: 639px) {
            .preset-buttons {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        
        @media screen and (min-width: 1024px) {
            .preset-buttons {
                grid-template-columns: repeat(6, 1fr);
            }
        }
        
        @media screen and (min-width: 1280px) {
            .preset-buttons {
                grid-template-columns: repeat(8, 1fr);
            }
        }
        
        .preset-btn {
            position: relative;
            padding: 0.75rem 0.5rem;
            border-radius: 0.75rem;
            border: 2px solid #e2e8f0;
            background: white;
            color: #475569;
            font-weight: 700;
            font-size: 0.875rem;
            cursor: pointer;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 0.25rem;
            min-height: 48px;
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
        }
        
        .dark .preset-btn {
            background: #1e293b;
            border-color: #334155;
            color: #cbd5e1;
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
        }
        
        .preset-btn:hover:not(:disabled) {
            border-color: #f59e0b;
            background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(245, 158, 11, 0.2);
        }
        
        .dark .preset-btn:hover:not(:disabled) {
            background: linear-gradient(135deg, rgba(251, 191, 36, 0.2) 0%, rgba(245, 158, 11, 0.15) 100%);
            border-color: #fbbf24;
            box-shadow: 0 4px 12px rgba(245, 158, 11, 0.3);
        }
        
        .preset-btn:focus-visible {
            outline: 2px solid #f59e0b;
            outline-offset: 2px;
        }
        
        .preset-btn.selected {
            background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
            border-color: #d97706;
            color: white;
            box-shadow: 0 6px 16px rgba(245, 158, 11, 0.5);
            transform: translateY(-2px);
            font-weight: 800;
        }
        
        .preset-btn.selected:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 20px rgba(245, 158, 11, 0.6);
        }
        
        .preset-btn:disabled {
            opacity: 0.5;
            cursor: not-allowed;
        }

        /* Preset Mode Buttons */
        .preset-mode-btn {
            position: relative;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            overflow: hidden;
        }

        .preset-mode-btn::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(135deg, transparent 0%, rgba(255, 255, 255, 0.1) 100%);
            pointer-events: none;
        }

        .preset-mode-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
        }

        .dark .preset-mode-btn:hover {
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
        }

        .preset-mode-btn:active {
            transform: translateY(0);
        }
        
        /* Slider Container */
        .slider-container {
            margin-top: 1.5rem;
            padding: 1rem;
            background: white;
            border-radius: 0.75rem;
            border: 1px solid #e2e8f0;
        }
        
        .dark .slider-container {
            background: #1e293b;
            border-color: #334155;
        }
        
        .slider-label {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 0.75rem;
        }
        
        .slider-label-text {
            font-size: 0.875rem;
            font-weight: 600;
            color: #475569;
        }
        
        .dark .slider-label-text {
            color: #cbd5e1;
        }
        
        .slider-value {
            font-size: 0.875rem;
            font-weight: 700;
            color: #f59e0b;
        }
        
        /* Custom Range Slider */
        .time-slider {
            --slider-thumb-start: #f59e0b;
            --slider-thumb-end: #d97706;
            --slider-thumb-shadow: rgba(245, 158, 11, 0.5);
            --slider-thumb-hover-shadow: rgba(245, 158, 11, 0.6);
            height: 10px;
            border-radius: 9999px;
            background: linear-gradient(90deg, #f0f0f0 0%, #dcdcdc 100%);
            outline: none;
            appearance: none;
            -webkit-appearance: none;
            transition: all 0.3s;
        }
        
        .time-slider::-webkit-slider-thumb,
        .numQuestionsSlider::-webkit-slider-thumb {
            -webkit-appearance: none;
            appearance: none;
            width: 30px;
            height: 30px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--slider-thumb-start) 0%, var(--slider-thumb-end) 100%);
            cursor: pointer;
            box-shadow: 0 4px 12px var(--slider-thumb-shadow);
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        
        .time-slider::-webkit-slider-thumb:hover,
        .numQuestionsSlider::-webkit-slider-thumb:hover {
            transform: scale(1.2);
            box-shadow: 0 6px 20px var(--slider-thumb-hover-shadow);
        }
        
        .time-slider::-moz-range-thumb,
        .numQuestionsSlider::-moz-range-thumb {
            width: 30px;
            height: 30px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--slider-thumb-start) 0%, var(--slider-thumb-end) 100%);
            cursor: pointer;
            border: none;
            box-shadow: 0 4px 12px var(--slider-thumb-shadow);
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        
        .time-slider::-moz-range-thumb:hover,
        .numQuestionsSlider::-moz-range-thumb:hover {
            transform: scale(1.2);
            box-shadow: 0 6px 20px var(--slider-thumb-hover-shadow);
        }
        
        .slider-labels {
            display: flex;
            justify-content: space-between;
            margin-top: 0.5rem;
            font-size: 0.75rem;
            font-weight: 700;
            color: #64748b;
        }
        
        .dark .slider-labels {
            color: #94a3b8;
        }
        
        /* Count Presets */
        .count-presets {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 0.5rem;
        }
        
        @media screen and (max-width: 639px) {
            .count-presets {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        
        .count-preset-btn {
            padding: 0.75rem;
            border-radius: 0.75rem;
            border: 2px solid #e2e8f0;
            background: white;
            color: #475569;
            font-weight: 700;
            font-size: 0.875rem;
            cursor: pointer;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
        }
        
        .dark .count-preset-btn {
            background: #1e293b;
            border-color: #334155;
            color: #cbd5e1;
        }
        
        .count-preset-btn:hover {
            transform: translateY(-2px);
            background: linear-gradient(135deg, #6366f1 0%, #4f46e5 100%);
            border-color: #4f46e5;
            color: white;
            box-shadow: 0 6px 16px rgba(79, 70, 229, 0.4);
        }
        
        .count-preset-btn:active {
            transform: translateY(0);
        }
        
        .time-limit-header {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            margin-bottom: 1.5rem;
        }
        
        .time-limit-icon-wrapper {
            background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
            padding: 0.75rem;
            border-radius: 0.75rem;
            box-shadow: 0 2px 8px rgba(251, 191, 36, 0.25);
        }
        
        .dark .time-limit-icon-wrapper {
            background: linear-gradient(135deg, rgba(251, 191, 36, 0.2) 0%, rgba(245, 158, 11, 0.3) 100%);
        }
        
        /* Time Display Card */
        .time-display-card {
            background: white;
            border-radius: 1rem;
            padding: 1.5rem;
            text-align: center;
            border: 2px solid #e2e8f0;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
            transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        }
        
        .dark .time-display-card {
            background: #1e293b;
            border-color: #334155;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
        }
        
        .time-display-card:hover {
            transform: translateY(-3px) scale(1.01);
            box-shadow: 0 12px 24px rgba(0, 0, 0, 0.1);
            border-color: #B8D6D6;
        }
        
        .dark .time-display-card:hover {
            box-shadow: 0 12px 24px rgba(0, 0, 0, 0.4);
            border-color: #088395;
        }
        
        .time-display-value {
            font-size: 3.5rem;
            font-weight: 900;
            background: linear-gradient(135deg, #1e293b 0%, #5A9E9E 100%);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            line-height: 1;
            transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            letter-spacing: -0.02em;
        }
        
        .dark .time-display-value {
            background: linear-gradient(135deg, #f1f5f9 0%, #088395 100%);
            -webkit-background-clip: text;
            background-clip: text;
        }
        
        .time-display-value.updated {
            animation: pulse 0.4s ease-out;
        }
        
        @keyframes pulse {
            0% { transform: scale(1); }
            50% { transform: scale(1.12); }
            100% { transform: scale(1); }
        }
        
        .time-display-label {
            font-size: 0.875rem;
            font-weight: 700;
            color: #64748b;
            text-transform: uppercase;
            letter-spacing: 0.12em;
            margin-top: 0.75rem;
        }
        
        .dark .time-display-label {
            color: #94a3b8;
        }
        
        /* Preset Buttons Grid */
        .preset-buttons {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 0.5rem;
            margin-top: 1.25rem;
        }
        
        @media screen and (max-width: 639px) {
            .preset-buttons {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        
        @media screen and (min-width: 1024px) {
            .preset-buttons {
                grid-template-columns: repeat(6, 1fr);
            }
        }
        
        @media screen and (min-width: 1280px) {
            .preset-buttons {
                grid-template-columns: repeat(8, 1fr);
            }
        }
        
        .preset-btn {
            position: relative;
            padding: 0.75rem 0.5rem;
            border-radius: 0.75rem;
            border: 2px solid #e2e8f0;
            background: white;
            color: #475569;
            font-weight: 700;
            font-size: 0.875rem;
            cursor: pointer;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 0.25rem;
            min-height: 48px;
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
        }
        
        .dark .preset-btn {
            background: #1e293b;
            border-color: #334155;
            color: #cbd5e1;
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
        }
        
        .preset-btn:hover:not(:disabled) {
            border-color: #f59e0b;
            background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(245, 158, 11, 0.2);
        }
        
        .dark .preset-btn:hover:not(:disabled) {
            background: linear-gradient(135deg, rgba(251, 191, 36, 0.2) 0%, rgba(245, 158, 11, 0.15) 100%);
            border-color: #fbbf24;
            box-shadow: 0 4px 12px rgba(245, 158, 11, 0.3);
        }
        
        .preset-btn:focus-visible {
            outline: 2px solid #f59e0b;
            outline-offset: 2px;
        }
        
        .preset-btn.selected {
            background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
            border-color: #d97706;
            color: white;
            box-shadow: 0 6px 16px rgba(245, 158, 11, 0.5);
            transform: translateY(-2px);
            font-weight: 800;
        }
        
        .preset-btn.selected:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 20px rgba(245, 158, 11, 0.6);
        }
        
        .preset-btn:disabled {
            opacity: 0.5;
            cursor: not-allowed;
        }

        /* Preset Mode Buttons */
        .preset-mode-btn {
            position: relative;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            overflow: hidden;
        }

        .preset-mode-btn::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(135deg, transparent 0%, rgba(255, 255, 255, 0.1) 100%);
            pointer-events: none;
        }

        .preset-mode-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
        }

        .dark .preset-mode-btn:hover {
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
        }

        .preset-mode-btn:active {
            transform: translateY(0);
        }
        
        /* Slider Container */
        .slider-container {
            margin-top: 1.5rem;
            padding: 1rem;
            background: white;
            border-radius: 0.75rem;
            border: 1px solid #e2e8f0;
        }
        
        .dark .slider-container {
            background: #1e293b;
            border-color: #334155;
        }
        
        .slider-label {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 0.75rem;
        }
        
        .slider-label-text {
            font-size: 0.875rem;
            font-weight: 600;
            color: #475569;
        }
        
        .dark .slider-label-text {
            color: #cbd5e1;
        }
        
        .slider-value {
            font-size: 0.875rem;
            font-weight: 700;
            color: #f59e0b;
        }
        
        /* Custom Range Slider */
        .time-slider {
            --slider-thumb-start: #f59e0b;
            --slider-thumb-end: #d97706;
            --slider-thumb-shadow: rgba(245, 158, 11, 0.5);
            --slider-thumb-hover-shadow: rgba(245, 158, 11, 0.6);
            height: 10px;
            border-radius: 9999px;
            background: linear-gradient(90deg, #f0f0f0 0%, #dcdcdc 100%);
            outline: none;
            appearance: none;
            -webkit-appearance: none;
            transition: all 0.3s;
        }
        
        .time-slider::-webkit-slider-thumb,
        .numQuestionsSlider::-webkit-slider-thumb {
            -webkit-appearance: none;
            appearance: none;
            width: 30px;
            height: 30px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--slider-thumb-start) 0%, var(--slider-thumb-end) 100%);
            cursor: pointer;
            box-shadow: 0 4px 12px var(--slider-thumb-shadow);
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        
        .time-slider::-webkit-slider-thumb:hover,
        .numQuestionsSlider::-webkit-slider-thumb:hover {
            transform: scale(1.2);
            box-shadow: 0 6px 20px var(--slider-thumb-hover-shadow);
        }
        
        .time-slider::-moz-range-thumb,
        .numQuestionsSlider::-moz-range-thumb {
            width: 30px;
            height: 30px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--slider-thumb-start) 0%, var(--slider-thumb-end) 100%);
            cursor: pointer;
            border: none;
            box-shadow: 0 4px 12px var(--slider-thumb-shadow);
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        
        .time-slider::-moz-range-thumb:hover,
        .numQuestionsSlider::-moz-range-thumb:hover {
            transform: scale(1.2);
            box-shadow: 0 6px 20px var(--slider-thumb-hover-shadow);
        }
        
        .slider-labels {
            display: flex;
            justify-content: space-between;
            margin-top: 0.5rem;
            font-size: 0.75rem;
            font-weight: 700;
            color: #64748b;
        }
        
        .dark .slider-labels {
            color: #94a3b8;
        }
        
        /* Count Presets */
        .count-presets {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 0.5rem;
        }
        
        @media screen and (max-width: 639px) {
            .count-presets {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        
        .count-preset-btn {
            padding: 0.75rem;
            border-radius: 0.75rem;
            border: 2px solid #e2e8f0;
            background: white;
            color: #475569;
            font-weight: 700;
            font-size: 0.875rem;
            cursor: pointer;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
        }
        
        .dark .count-preset-btn {
            background: #1e293b;
            border-color: #334155;
            color: #cbd5e1;
        }
        
        .count-preset-btn:hover {
            transform: translateY(-2px);
            background: linear-gradient(135deg, #6366f1 0%, #4f46e5 100%);
            border-color: #4f46e5;
            color: white;
            box-shadow: 0 6px 16px rgba(79, 70, 229, 0.4);
        }
        
        .count-preset-btn:active {
            transform: translateY(0);
        }
        
        .time-limit-header {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            margin-bottom: 1.5rem;
        }
        
        .time-limit-icon-wrapper {
            background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
            padding: 0.75rem;
            border-radius: 0.75rem;
            box-shadow: 0 2px 8px rgba(251, 191, 36, 0.25);
        }
        
        .dark .time-limit-icon-wrapper {
            background: linear-gradient(135deg, rgba(251, 191, 36, 0.2) 0%, rgba(245, 158, 11, 0.3) 100%);
        }
        
        /* Time Display Card */
        .time-display-card {
            background: white;
            border-radius: 1rem;
            padding: 1.5rem;
            text-align: center;
            border: 2px solid #e2e8f0;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
            transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        }
        
        .dark .time-display-card {
            background: #1e293b;
            border-color: #334155;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
        }
        
        .time-display-card:hover {
            transform: translateY(-3px) scale(1.01);
            box-shadow: 0 12px 24px rgba(0, 0, 0, 0.1);
            border-color: #B8D6D6;
        }
        
        .dark .time-display-card:hover {
            box-shadow: 0 12px 24px rgba(0, 0, 0, 0.4);
            border-color: #088395;
        }
        
        .time-display-value {
            font-size: 3.5rem;
            font-weight: 900;
            background: linear-gradient(135deg, #1e293b 0%, #5A9E9E 100%);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            line-height: 1;
            transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            letter-spacing: -0.02em;
        }
        
        .dark .time-display-value {
            background: linear-gradient(135deg, #f1f5f9 0%, #088395 100%);
            -webkit-background-clip: text;
            background-clip: text;
        }
        
        .time-display-value.updated {
            animation: pulse 0.4s ease-out;
        }
        
        @keyframes pulse {
            0% { transform: scale(1); }
            50% { transform: scale(1.12); }
            100% { transform: scale(1); }
        }
        
        .time-display-label {
            font-size: 0.875rem;
            font-weight: 700;
            color: #64748b;
            text-transform: uppercase;
            letter-spacing: 0.12em;
            margin-top: 0.75rem;
        }
        
        .dark .time-display-label {
            color: #94a3b8;
        }
        
        /* Preset Buttons Grid */
        .preset-buttons {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 0.5rem;
            margin-top: 1.25rem;
        }
        
        @media screen and (max-width: 639px) {
            .preset-buttons {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        
        @media screen and (min-width: 1024px) {
            .preset-buttons {
                grid-template-columns: repeat(6, 1fr);
            }
        }
        
        @media screen and (min-width: 1280px) {
            .preset-buttons {
                grid-template-columns: repeat(8, 1fr);
            }
        }
        
        .preset-btn {
            position: relative;
            padding: 0.75rem 0.5rem;
            border-radius: 0.75rem;
            border: 2px solid #e2e8f0;
            background: white;
            color: #475569;
            font-weight: 700;
            font-size: 0.875rem;
            cursor: pointer;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 0.25rem;
            min-height: 48px;
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
        }
        
        .dark .preset-btn {
            background: #1e293b;
            border-color: #334155;
            color: #cbd5e1;
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
        }
        
        .preset-btn:hover:not(:disabled) {
            border-color: #f59e0b;
            background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(245, 158, 11, 0.2);
        }
        
        .dark .preset-btn:hover:not(:disabled) {
            background: linear-gradient(135deg, rgba(251, 191, 36, 0.2) 0%, rgba(245, 158, 11, 0.15) 100%);
            border-color: #fbbf24;
            box-shadow: 0 4px 12px rgba(245, 158, 11, 0.3);
        }
        
        .preset-btn:focus-visible {
            outline: 2px solid #f59e0b;
            outline-offset: 2px;
        }
        
        .preset-btn.selected {
            background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
            border-color: #d97706;
            color: white;
            box-shadow: 0 6px 16px rgba(245, 158, 11, 0.5);
            transform: translateY(-2px);
            font-weight: 800;
        }
        
        .preset-btn.selected:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 20px rgba(245, 158, 11, 0.6);
        }
        
        .preset-btn:disabled {
            opacity: 0.5;
            cursor: not-allowed;
        }

        /* Preset Mode Buttons */
        .preset-mode-btn {
            position: relative;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            overflow: hidden;
        }

        .preset-mode-btn::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(135deg, transparent 0%, rgba(255, 255, 255, 0.1) 100%);
            pointer-events: none;
        }

        .preset-mode-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
        }

        .dark .preset-mode-btn:hover {
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
        }

        .preset-mode-btn:active {
            transform: translateY(0);
        }
        
        /* Slider Container */
        .slider-container {
            margin-top: 1.5rem;
            padding: 1rem;
            background: white;
            border-radius: 0.75rem;
            border: 1px solid #e2e8f0;
        }
        
        .dark .slider-container {
            background: #1e293b;
            border-color: #334155;
        }
        
        .slider-label {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 0.75rem;
        }
        
        .slider-label-text {
            font-size: 0.875rem;
            font-weight: 600;
            color: #475569;
        }
        
        .dark .slider-label-text {
            color: #cbd5e1;
        }
        
        .slider-value {
            font-size: 0.875rem;
            font-weight: 700;
            color: #f59e0b;
        }
        
        /* Custom Range Slider */
        .time-slider {
            --slider-thumb-start: #f59e0b;
            --slider-thumb-end: #d97706;
            --slider-thumb-shadow: rgba(245, 158, 11, 0.5);
            --slider-thumb-hover-shadow: rgba(245, 158, 11, 0.6);
            height: 10px;
            border-radius: 9999px;
            background: linear-gradient(90deg, #f0f0f0 0%, #dcdcdc 100%);
            outline: none;
            appearance: none;
            -webkit-appearance: none;
            transition: all 0.3s;
        }
        
        .time-slider::-webkit-slider-thumb,
        .numQuestionsSlider::-webkit-slider-thumb {
            -webkit-appearance: none;
            appearance: none;
            width: 30px;
            height: 30px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--slider-thumb-start) 0%, var(--slider-thumb-end) 100%);
            cursor: pointer;
            box-shadow: 0 4px 12px var(--slider-thumb-shadow);
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        
        .time-slider::-webkit-slider-thumb:hover,
        .numQuestionsSlider::-webkit-slider-thumb:hover {
            transform: scale(1.2);
            box-shadow: 0 6px 20px var(--slider-thumb-hover-shadow);
        }
        
        .time-slider::-moz-range-thumb,
        .numQuestionsSlider::-moz-range-thumb {
            width: 30px;
            height: 30px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--slider-thumb-start) 0%, var(--slider-thumb-end) 100%);
            cursor: pointer;
            border: none;
            box-shadow: 0 4px 12px var(--slider-thumb-shadow);
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        
        .time-slider::-moz-range-thumb:hover,
        .numQuestionsSlider::-moz-range-thumb:hover {
            transform: scale(1.2);
            box-shadow: 0 6px 20px var(--slider-thumb-hover-shadow);
        }
        
        .slider-labels {
            display: flex;
            justify-content: space-between;
            margin-top: 0.5rem;
            font-size: 0.75rem;
            font-weight: 700;
            color: #64748b;
        }
        
        .dark .slider-labels {
            color: #94a3b8;
        }
        
        /* Count Presets */
        .count-presets {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 0.5rem;
        }
        
        @media screen and (max-width: 639px) {
            .count-presets {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        
        .count-preset-btn {
            padding: 0.75rem;
            border-radius: 0.75rem;
            border: 2px solid #e2e8f0;
            background: white;
            color: #475569;
            font-weight: 700;
            font-size: 0.875rem;
            cursor: pointer;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
        }
        
        .dark .count-preset-btn {
            background: #1e293b;
            border-color: #334155;
            color: #cbd5e1;
        }
        
        .count-preset-btn:hover {
            transform: translateY(-2px);
            background: linear-gradient(135deg, #6366f1 0%, #4f46e5 100%);
            border-color: #4f46e5;
            color: white;
            box-shadow: 0 6px 16px rgba(79, 70, 229, 0.4);
        }
        
        .count-preset-btn:active {
            transform: translateY(0);
        }
        
        .time-limit-header {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            margin-bottom: 1.5rem;
        }
        
        .time-limit-icon-wrapper {
            background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
            padding: 0.75rem;
            border-radius: 0.75rem;
            box-shadow: 0 2px 8px rgba(251, 191, 36, 0.25);
        }
        
        .dark .time-limit-icon-wrapper {
            background: linear-gradient(135deg, rgba(251, 191, 36, 0.2) 0%, rgba(245, 158, 11, 0.3) 100%);
        }
        
        /* Time Display Card */
        .time-display-card {
            background: white;
            border-radius: 1rem;
            padding: 1.5rem;
            text-align: center;
            border: 2px solid #e2e8f0;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
            transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        }
        
        .dark .time-display-card {
            background: #1e293b;
            border-color: #334155;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
        }
        
        .time-display-card:hover {
            transform: translateY(-3px) scale(1.01);
            box-shadow: 0 12px 24px rgba(0, 0, 0, 0.1);
            border-color: #B8D6D6;
        }
        
        .dark .time-display-card:hover {
            box-shadow: 0 12px 24px rgba(0, 0, 0, 0.4);
            border-color: #088395;
        }
        
        .time-display-value {
            font-size: 3.5rem;
            font-weight: 900;
            background: linear-gradient(135deg, #1e293b 0%, #5A9E9E 100%);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            line-height: 1;
            transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            letter-spacing: -0.02em;
        }
        
        .dark .time-display-value {
            background: linear-gradient(135deg, #f1f5f9 0%, #088395 100%);
            -webkit-background-clip: text;
            background-clip: text;
        }
        
        .time-display-value.updated {
            animation: pulse 0.4s ease-out;
        }
        
        @keyframes pulse {
            0% { transform: scale(1); }
            50% { transform: scale(1.12); }
            100% { transform: scale(1); }
        }
        
        .time-display-label {
            font-size: 0.875rem;
            font-weight: 700;
            color: #64748b;
            text-transform: uppercase;
            letter-spacing: 0.12em;
            margin-top: 0.75rem;
        }
        
        .dark .time-display-label {
            color: #94a3b8;
        }
        
        /* Preset Buttons Grid */
        .preset-buttons {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 0.5rem;
            margin-top: 1.25rem;
        }
        
        @media screen and (max-width: 639px) {
            .preset-buttons {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        
        @media screen and (min-width: 1024px) {
            .preset-buttons {
                grid-template-columns: repeat(6, 1fr);
            }
        }
        
        @media screen and (min-width: 1280px) {
            .preset-buttons {
                grid-template-columns: repeat(8, 1fr);
            }
        }
        
        .preset-btn {
            position: relative;
            padding: 0.75rem 0.5rem;
            border-radius: 0.75rem;
            border: 2px solid #e2e8f0;
            background: white;
            color: #475569;
            font-weight: 700;
            font-size: 0.875rem;
            cursor: pointer;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 0.25rem;
            min-height: 48px;
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
        }
        
        .dark .preset-btn {
            background: #1e293b;
            border-color: #334155;
            color: #cbd5e1;
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
        }
        
        .preset-btn:hover:not(:disabled) {
            border-color: #f59e0b;
            background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(245, 158, 11, 0.2);
        }
        
        .dark .preset-btn:hover:not(:disabled) {
            background: linear-gradient(135deg, rgba(251, 191, 36, 0.2) 0%, rgba(245, 158, 11, 0.15) 100%);
            border-color: #fbbf24;
            box-shadow: 0 4px 12px rgba(245, 158, 11, 0.3);
        }
        
        .preset-btn:focus-visible {
            outline: 2px solid #f59e0b;
            outline-offset: 2px;
        }
        
        .preset-btn.selected {
            background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
            border-color: #d97706;
            color: white;
            box-shadow: 0 6px 16px rgba(245, 158, 11, 0.5);
            transform: translateY(-2px);
            font-weight: 800;
        }
        
        .preset-btn.selected:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 20px rgba(245, 158, 11, 0.6);
        }
        
        .preset-btn:disabled {
            opacity: 0.5;
            cursor: not-allowed;
        }

        /* Preset Mode Buttons */
        .preset-mode-btn {
            position: relative;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            overflow: hidden;
        }

        .preset-mode-btn::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(135deg, transparent 0%, rgba(255, 255, 255, 0.1) 100%);
            pointer-events: none;
        }

        .preset-mode-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
        }

        .dark .preset-mode-btn:hover {
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
        }

        .preset-mode-btn:active {
            transform: translateY(0);
        }
        
        /* Slider Container */
        .slider-container {
            margin-top: 1.5rem;
            padding: 1rem;
            background: white;
            border-radius: 0.75rem;
            border: 1px solid #e2e8f0;
        }
        
        .dark .slider-container {
            background: #1e293b;
            border-color: #334155;
        }
        
        .slider-label {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 0.75rem;
        }
        
        .slider-label-text {
            font-size: 0.875rem;
            font-weight: 600;
            color: #475569;
        }
        
        .dark .slider-label-text {
            color: #cbd5e1;
        }
        
        .slider-value {
            font-size: 0.875rem;
            font-weight: 700;
            color: #f59e0b;
        }
        
        /* Custom Range Slider */
        .time-slider {
            --slider-thumb-start: #f59e0b;
            --slider-thumb-end: #d97706;
            --slider-thumb-shadow: rgba(245, 158, 11, 0.5);
            --slider-thumb-hover-shadow: rgba(245, 158, 11, 0.6);
            height: 10px;
            border-radius: 9999px;
            background: linear-gradient(90deg, #f0f0f0 0%, #dcdcdc 100%);
            outline: none;
            appearance: none;
            -webkit-appearance: none;
            transition: all 0.3s;
        }
        
        .time-slider::-webkit-slider-thumb,
        .numQuestionsSlider::-webkit-slider-thumb {
            -webkit-appearance: none;
            appearance: none;
            width: 30px;
            height: 30px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--slider-thumb-start) 0%, var(--slider-thumb-end) 100%);
            cursor: pointer;
            box-shadow: 0 4px 12px var(--slider-thumb-shadow);
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        
        .time-slider::-webkit-slider-thumb:hover,
        .numQuestionsSlider::-webkit-slider-thumb:hover {
            transform: scale(1.2);
            box-shadow: 0 6px 20px var(--slider-thumb-hover-shadow);
        }
        
        .time-slider::-moz-range-thumb,
        .numQuestionsSlider::-moz-range-thumb {
            width: 30px;
            height: 30px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--slider-thumb-start) 0%, var(--slider-thumb-end) 100%);
            cursor: pointer;
            border: none;
            box-shadow: 0 4px 12px var(--slider-thumb-shadow);
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        
        .time-slider::-moz-range-thumb:hover,
        .numQuestionsSlider::-moz-range-thumb:hover {
            transform: scale(1.2);
            box-shadow: 0 6px 20px var(--slider-thumb-hover-shadow);
        }
        
        .slider-labels {
            display: flex;
            justify-content: space-between;
            margin-top: 0.5rem;
            font-size: 0.75rem;
            font-weight: 700;
            color: #64748b;
        }
        
        .dark .slider-labels {
            color: #94a3b8;
        }
        
        /* Count Presets */
        .count-presets {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 0.5rem;
        }
        
        @media screen and (max-width: 639px) {
            .count-presets {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        
        .count-preset-btn {
            padding: 0.75rem;
            border-radius: 0.75rem;
            border: 2px solid #e2e8f0;
            background: white;
            color: #475569;
            font-weight: 700;
            font-size: 0.875rem;
            cursor: pointer;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
        }
        
        .dark .count-preset-btn {
            background: #1e293b;
            border-color: #334155;
            color: #cbd5e1;
        }
        
        .count-preset-btn:hover {
            transform: translateY(-2px);
            background: linear-gradient(135deg, #6366f1 0%, #4f46e5 100%);
            border-color: #4f46e5;
            color: white;
            box-shadow: 0 6px 16px rgba(79, 70, 229, 0.4);
        }
        
        .count-preset-btn:active {
            transform: translateY(0);
        }
        
        .time-limit-header {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            margin-bottom: 1.5rem;
        }
        
        .time-limit-icon-wrapper {
            background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
            padding: 0.75rem;
            border-radius: 0.75rem;
            box-shadow: 0 2px 8px rgba(251, 191, 36, 0.25);
        }
        
        .dark .time-limit-icon-wrapper {
            background: linear-gradient(135deg, rgba(251, 191, 36, 0.2) 0%, rgba(245, 158, 11, 0.3) 100%);
        }
        
        /* Time Display Card */
        .time-display-card {
            background: white;
            border-radius: 1rem;
            padding: 1.5rem;
            text-align: center;
            border: 2px solid #e2e8f0;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
            transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        }
        
        .dark .time-display-card {
            background: #1e293b;
            border-color: #334155;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
        }
        
        .time-display-card:hover {
            transform: translateY(-3px) scale(1.01);
            box-shadow: 0 12px 24px rgba(0, 0, 0, 0.1);
            border-color: #B8D6D6;
        }
        
        .dark .time-display-card:hover {
            box-shadow: 0 12px 24px rgba(0, 0, 0, 0.4);
            border-color: #088395;
        }
        
        .time-display-value {
            font-size: 3.5rem;
            font-weight: 900;
            background: linear-gradient(135deg, #1e293b 0%, #5A9E9E 100%);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            line-height: 1;
            transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            letter-spacing: -0.02em;
        }
        
        .dark .time-display-value {
            background: linear-gradient(135deg, #f1f5f9 0%, #088395 100%);
            -webkit-background-clip: text;
            background-clip: text;
        }
        
        .time-display-value.updated {
            animation: pulse 0.4s ease-out;
        }
        
        @keyframes pulse {
            0% { transform: scale(1); }
            50% { transform: scale(1.12); }
            100% { transform: scale(1); }
        }
        
        .time-display-label {
            font-size: 0.875rem;
            font-weight: 700;
            color: #64748b;
            text-transform: uppercase;
            letter-spacing: 0.12em;
            margin-top: 0.75rem;
        }
        
        .dark .time-display-label {
            color: #94a3b8;
        }
        
        /* Preset Buttons Grid */
        .preset-buttons {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 0.5rem;
            margin-top: 1.25rem;
        }
        
        @media screen and (max-width: 639px) {
            .preset-buttons {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        
        @media screen and (min-width: 1024px) {
            .preset-buttons {
                grid-template-columns: repeat(6, 1fr);
            }
        }
        
        @media screen and (min-width: 1280px) {
            .preset-buttons {
                grid-template-columns: repeat(8, 1fr);
            }
        }
        
        .preset-btn {
            position: relative;
            padding: 0.75rem 0.5rem;
            border-radius: 0.75rem;
            border: 2px solid #e2e8f0;
            background: white;
            color: #475569;
            font-weight: 700;
            font-size: 0.875rem;
            cursor: pointer;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 0.25rem;
            min-height: 48px;
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
        }
        
        .dark .preset-btn {
            background: #1e293b;
            border-color: #334155;
            color: #cbd5e1;
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
        }
        
        .preset-btn:hover:not(:disabled) {
            border-color: #f59e0b;
            background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(245, 158, 11, 0.2);
        }
        
        .dark .preset-btn:hover:not(:disabled) {
            background: linear-gradient(135deg, rgba(251, 191, 36, 0.2) 0%, rgba(245, 158, 11, 0.15) 100%);
            border-color: #fbbf24;
            box-shadow: 0 4px 12px rgba(245, 158, 11, 0.3);
        }
        
        .preset-btn:focus-visible {
            outline: 2px solid #f59e0b;
            outline-offset: 2px;
        }
        
        .preset-btn.selected {
            background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
            border-color: #d97706;
            color: white;
            box-shadow: 0 6px 16px rgba(245, 158, 11, 0.5);
            transform: translateY(-2px);
            font-weight: 800;
        }
        
        .preset-btn.selected:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 20px rgba(245, 158, 11, 0.6);
        }
        
        .preset-btn:disabled {
            opacity: 0.5;
            cursor: not-allowed;
        }

        /* Preset Mode Buttons */
        .preset-mode-btn {
            position: relative;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            overflow: hidden;
        }

        .preset-mode-btn::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(135deg, transparent 0%, rgba(255, 255, 255, 0.1) 100%);
            pointer-events: none;
        }

        .preset-mode-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
        }

        .dark .preset-mode-btn:hover {
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
        }

        .preset-mode-btn:active {
            transform: translateY(0);
        }
        
        /* Slider Container */
        .slider-container {
            margin-top: 1.5rem;
            padding: 1rem;
            background: white;
            border-radius: 0.75rem;
            border: 1px solid #e2e8f0;
        }
        
        .dark .slider-container {
            background: #1e293b;
            border-color: #334155;
        }
        
        .slider-label {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 0.75rem;
        }
        
        .slider-label-text {
            font-size: 0.875rem;
            font-weight: 600;
            color: #475569;
        }
        
        .dark .slider-label-text {
            color: #cbd5e1;
        }
        
        .slider-value {
            font-size: 0.875rem;
            font-weight: 700;
            color: #f59e0b;
        }
        
        /* Custom Range Slider */
        .time-slider {
            --slider-thumb-start: #f59e0b;
            --slider-thumb-end: #d97706;
            --slider-thumb-shadow: rgba(245, 158, 11, 0.5);
            --slider-thumb-hover-shadow: rgba(245, 158, 11, 0.6);
            height: 10px;
            border-radius: 9999px;
            background: linear-gradient(90deg, #f0f0f0 0%, #dcdcdc 100%);
            outline: none;
            appearance: none;
            -webkit-appearance: none;
            transition: all 0.3s;
        }
        
        .time-slider::-webkit-slider-thumb,
        .numQuestionsSlider::-webkit-slider-thumb {
            -webkit-appearance: none;
            appearance: none;
            width: 30px;
            height: 30px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--slider-thumb-start) 0%, var(--slider-thumb-end) 100%);
            cursor: pointer;
            box-shadow: 0 4px 12px var(--slider-thumb-shadow);
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        
        .time-slider::-webkit-slider-thumb:hover,
        .numQuestionsSlider::-webkit-slider-thumb:hover {
            transform: scale(1.2);
            box-shadow: 0 6px 20px var(--slider-thumb-hover-shadow);
        }
        
        .time-slider::-moz-range-thumb,
        .numQuestionsSlider::-moz-range-thumb {
            width: 30px;
            height: 30px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--slider-thumb-start) 0%, var(--slider-thumb-end) 100%);
            cursor: pointer;
            border: none;
            box-shadow: 0 4px 12px var(--slider-thumb-shadow);
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        
        .time-slider::-moz-range-thumb:hover,
        .numQuestionsSlider::-moz-range-thumb:hover {
            transform: scale(1.2);
            box-shadow: 0 6px 20px var(--slider-thumb-hover-shadow);
        }
        
        .slider-labels {
            display: flex;
            justify-content: space-between;
            margin-top: 0.5rem;
            font-size: 0.75rem;
            font-weight: 700;
            color: #64748b;
        }
        
        .dark .slider-labels {
            color: #94a3b8;
        }
        
        /* Count Presets */
        .count-presets {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 0.5rem;
        }
        
        @media screen and (max-width: 639px) {
            .count-presets {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        
        .count-preset-btn {
            padding: 0.75rem;
            border-radius: 0.75rem;
            border: 2px solid #e2e8f0;
            background: white;
            color: #475569;
            font-weight: 700;
            font-size: 0.875rem;
            cursor: pointer;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
        }
        
        .dark .count-preset-btn {
            background: #1e293b;
            border-color: #334155;
            color: #cbd5e1;
        }
        
        .count-preset-btn:hover {
            transform: translateY(-2px);
            background: linear-gradient(135deg, #6366f1 0%, #4f46e5 100%);
            border-color: #4f46e5;
            color: white;
            box-shadow: 0 6px 16px rgba(79, 70, 229, 0.4);
        }
        
        .count-preset-btn:active {
            transform: translateY(0);
        }
        
        .time-limit-header {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            margin-bottom: 1.5rem;
        }
        
        .time-limit-icon-wrapper {
            background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
            padding: 0.75rem;
            border-radius: 0.75rem;
            box-shadow: 0 2px 8px rgba(251, 191, 36, 0.25);
        }
        
        .dark .time-limit-icon-wrapper {
            background: linear-gradient(135deg, rgba(251, 191, 36, 0.2) 0%, rgba(245, 158, 11, 0.3) 100%);
        }
        
        /* Time Display Card */
        .time-display-card {
            background: white;
            border-radius: 1rem;
            padding: 1.5rem;
            text-align: center;
            border: 2px solid #e2e8f0;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
            transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        }
        
        .dark .time-display-card {
            background: #1e293b;
            border-color: #334155;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
        }
        
        .time-display-card:hover {
            transform: translateY(-3px) scale(1.01);
            box-shadow: 0 12px 24px rgba(0, 0, 0, 0.1);
            border-color: #B8D6D6;
        }
        
        .dark .time-display-card:hover {
            box-shadow: 0 12px 24px rgba(0, 0, 0, 0.4);
            border-color: #088395;
        }
        
        .time-display-value {
            font-size: 3.5rem;
            font-weight: 900;
            background: linear-gradient(135deg, #1e293b 0%, #5A9E9E 100%);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            line-height: 1;
            transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            letter-spacing: -0.02em;
        }
        
        .dark .time-display-value {
            background: linear-gradient(135deg, #f1f5f9 0%, #088395 100%);
            -webkit-background-clip: text;
            background-clip: text;
        }
        
        .time-display-value.updated {
            animation: pulse 0.4s ease-out;
        }
        
        @keyframes pulse {
            0% { transform: scale(1); }
            50% { transform: scale(1.12); }
            100% { transform: scale(1); }
        }
        
        .time-display-label {
            font-size: 0.875rem;
            font-weight: 700;
            color: #64748b;
            text-transform: uppercase;
            letter-spacing: 0.12em;
            margin-top: 0.75rem;
        }
        
        .dark .time-display-label {
            color: #94a3b8;
        }
        
        /* Preset Buttons Grid */
        .preset-buttons {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 0.5rem;
            margin-top: 1.25rem;
        }
        
        @media screen and (max-width: 639px) {
            .preset-buttons {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        
        @media screen and (min-width: 1024px) {
            .preset-buttons {
                grid-template-columns: repeat(6, 1fr);
            }
        }
        
        @media screen and (min-width: 1280px) {
            .preset-buttons {
                grid-template-columns: repeat(8, 1fr);
            }
        }
        
        .preset-btn {
            position: relative;
            padding: 0.75rem 0.5rem;
            border-radius: 0.75rem;
            border: 2px solid #e2e8f0;
            background: white;
            color: #475569;
            font-weight: 700;
            font-size: 0.875rem;
            cursor: pointer;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 0.25rem;
            min-height: 48px;
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
        }
        
        .dark .preset-btn {
            background: #1e293b;
            border-color: #334155;
            color: #cbd5e1;
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
        }
        
        .preset-btn:hover:not(:disabled) {
            border-color: #f59e0b;
            background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(245, 158, 11, 0.2);
        }
        
        .dark .preset-btn:hover:not(:disabled) {
            background: linear-gradient(135deg, rgba(251, 191, 36, 0.2) 0%, rgba(245, 158, 11, 0.15) 100%);
            border-color: #fbbf24;
            box-shadow: 0 4px 12px rgba(245, 158, 11, 0.3);
        }
        
        .preset-btn:focus-visible {
            outline: 2px solid #f59e0b;
            outline-offset: 2px;
        }
        
        .preset-btn.selected {
            background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
            border-color: #d97706;
            color: white;
            box-shadow: 0 6px 16px rgba(245, 158, 11, 0.5);
            transform: translateY(-2px);
            font-weight: 800;
        }
        
        .preset-btn.selected:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 20px rgba(245, 158, 11, 0.6);
        }
        
        .preset-btn:disabled {
            opacity: 0.5;
            cursor: not-allowed;
        }

        /* Preset Mode Buttons */
        .preset-mode-btn {
            position: relative;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            overflow: hidden;
        }

        .preset-mode-btn::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(135deg, transparent 0%, rgba(255, 255, 255, 0.1) 100%);
            pointer-events: none;
        }

        .preset-mode-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
        }

        .dark .preset-mode-btn:hover {
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
        }

        .preset-mode-btn:active {
            transform: translateY(0);
        }
        
        /* Slider Container */
        .slider-container {
            margin-top: 1.5rem;
            padding: 1rem;
            background: white;
            border-radius: 0.75rem;
            border: 1px solid #e2e8f0;
        }
        
        .dark .slider-container {
            background: #1e293b;
            border-color: #334155;
        }
        
        .slider-label {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 0.75rem;
        }
        
        .slider-label-text {
            font-size: 0.875rem;
            font-weight: 600;
            color: #475569;
        }
        
        .dark .slider-label-text {
            color: #cbd5e1;
        }
        
        .slider-value {
            font-size: 0.875rem;
            font-weight: 700;
            color: #f59e0b;
        }
        
        /* Custom Range Slider */
        .time-slider {
            --slider-thumb-start: #f59e0b;
            --slider-thumb-end: #d97706;
            --slider-thumb-shadow: rgba(245, 158, 11, 0.5);
            --slider-thumb-hover-shadow: rgba(245, 158, 11, 0.6);
            height: 10px;
            border-radius: 9999px;
            background: linear-gradient(90deg, #f0f0f0 0%, #dcdcdc 100%);
            outline: none;
            appearance: none;
            -webkit-appearance: none;
            transition: all 0.3s;
        }
        
        .time-slider::-webkit-slider-thumb,
        .numQuestionsSlider::-webkit-slider-thumb {
            -webkit-appearance: none;
            appearance: none;
            width: 30px;
            height: 30px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--slider-thumb-start) 0%, var(--slider-thumb-end) 100%);
            cursor: pointer;
            box-shadow: 0 4px 12px var(--slider-thumb-shadow);
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        
        .time-slider::-webkit-slider-thumb:hover,
        .numQuestionsSlider::-webkit-slider-thumb:hover {
            transform: scale(1.2);
            box-shadow: 0 6px 20px var(--slider-thumb-hover-shadow);
        }
        
        .time-slider::-moz-range-thumb,
        .numQuestionsSlider::-moz-range-thumb {
            width: 30px;
            height: 30px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--slider-thumb-start) 0%, var(--slider-thumb-end) 100%);
            cursor: pointer;
            border: none;
            box-shadow: 0 4px 12px var(--slider-thumb-shadow);
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        
        .time-slider::-moz-range-thumb:hover,
        .numQuestionsSlider::-moz-range-thumb:hover {
            transform: scale(1.2);
            box-shadow: 0 6px 20px var(--slider-thumb-hover-shadow);
        }
        
        .slider-labels {
            display: flex;
            justify-content: space-between;
            margin-top: 0.5rem;
            font-size: 0.75rem;
            font-weight: 700;
            color: #64748b;
        }
        
        .dark .slider-labels {
            color: #94a3b8;
        }
        
        /* Count Presets */
        .count-presets {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 0.5rem;
        }
        
        @media screen and (max-width: 639px) {
            .count-presets {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        
        .count-preset-btn {
            padding: 0.75rem;
            border-radius: 0.75rem;
            border: 2px solid #e2e8f0;
            background: white;
            color: #475569;
            font-weight: 700;
            font-size: 0.875rem;
            cursor: pointer;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
        }
        
        .dark .count-preset-btn {
            background: #1e293b;
            border-color: #334155;
            color: #cbd5e1;
        }
        
        .count-preset-btn:hover {
            transform: translateY(-2px);
            background: linear-gradient(135deg, #6366f1 0%, #4f46e5 100%);
            border-color: #4f46e5;
            color: white;
            box-shadow: 0 6px 16px rgba(79, 70, 229, 0.4);
        }
        
        .count-preset-btn:active {
            transform: translateY(0);
        }
        
        .time-limit-header {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            margin-bottom: 1.5rem;
        }
        
        .time-limit-icon-wrapper {
            background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
            padding: 0.75rem;
            border-radius: 0.75rem;
            box-shadow: 0 2px 8px rgba(251, 191, 36, 0.25);
        }
        
        .dark .time-limit-icon-wrapper {
            background: linear-gradient(135deg, rgba(251, 191, 36, 0.2) 0%, rgba(245, 158, 11, 0.3) 100%);
        }
        
        /* Time Display Card */
        .time-display-card {
            background: white;
            border-radius: 1rem;
            padding: 1.5rem;
            text-align: center;
            border: 2px solid #e2e8f0;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
            transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        }
        
        .dark .time-display-card {
            background: #1e293b;
            border-color: #334155;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
        }
        
        .time-display-card:hover {
            transform: translateY(-3px) scale(1.01);
            box-shadow: 0 12px 24px rgba(0, 0, 0, 0.1);
            border-color: #B8D6D6;
        }
        
        .dark .time-display-card:hover {
            box-shadow: 0 12px 24px rgba(0, 0, 0, 0.4);
            border-color: #088395;
        }
        
        .time-display-value {
            font-size: 3.5rem;
            font-weight: 900;
            background: linear-gradient(135deg, #1e293b 0%, #5A9E9E 100%);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            line-height: 1;
            transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            letter-spacing: -0.02em;
        }
        
        .dark .time-display-value {
            background: linear-gradient(135deg, #f1f5f9 0%, #088395 100%);
            -webkit-background-clip: text;
            background-clip: text;
        }
        
        .time-display-value.updated {
            animation: pulse 0.4s ease-out;
        }
        
        @keyframes pulse {
            0% { transform: scale(1); }
            50% { transform: scale(1.12); }
            100% { transform: scale(1); }
        }
        
        .time-display-label {
            font-size: 0.875rem;
            font-weight: 700;
            color: #64748b;
            text-transform: uppercase;
            letter-spacing: 0.12em;
            margin-top: 0.75rem;
        }
        
        .dark .time-display-label {
            color: #94a3b8;
        }
        
        /* Preset Buttons Grid */
        .preset-buttons {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 0.5rem;
            margin-top: 1.25rem;
        }
        
        @media screen and (max-width: 639px) {
            .preset-buttons {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        
        @media screen and (min-width: 1024px) {
            .preset-buttons {
                grid-template-columns: repeat(6, 1fr);
            }
        }
        
        @media screen and (min-width: 1280px) {
            .preset-buttons {
                grid-template-columns: repeat(8, 1fr);
            }
        }
        
        .preset-btn {
            position: relative;
            padding: 0.75rem 0.5rem;
            border-radius: 0.75rem;
            border: 2px solid #e2e8f0;
            background: white;
            color: #475569;
            font-weight: 700;
            font-size: 0.875rem;
            cursor: pointer;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 0.25rem;
            min-height: 48px;
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
        }
        
        .dark .preset-btn {
            background: #1e293b;
            border-color: #334155;
            color: #cbd5e1;
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
        }
        
        .preset-btn:hover:not(:disabled) {
            border-color: #f59e0b;
            background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(245, 158, 11, 0.2);
        }
        
        .dark .preset-btn:hover:not(:disabled) {
            background: linear-gradient(135deg, rgba(251, 191, 36, 0.2) 0%, rgba(245, 158, 11, 0.15) 100%);
            border-color: #fbbf24;
            box-shadow: 0 4px 12px rgba(245, 158, 11, 0.3);
        }
        
        .preset-btn:focus-visible {
            outline: 2px solid #f59e0b;
            outline-offset: 2px;
        }
        
        .preset-btn.selected {
            background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
            border-color: #d97706;
            color: white;
            box-shadow: 0 6px 16px rgba(245, 158, 11, 0.5);
            transform: translateY(-2px);
            font-weight: 800;
        }
        
        .preset-btn.selected:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 20px rgba(245, 158, 11, 0.6);
        }
        
        .preset-btn:disabled {
            opacity: 0.5;
            cursor: not-allowed;
        }

        /* Preset Mode Buttons */
        .preset-mode-btn {
            position: relative;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            overflow: hidden;
        }

        .preset-mode-btn::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(135deg, transparent 0%, rgba(255, 255, 255, 0.1) 100%);
            pointer-events: none;
        }

        .preset-mode-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
        }

        .dark .preset-mode-btn:hover {
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
        }

        .preset-mode-btn:active {
            transform: translateY(0);
        }
        
        /* Slider Container */
        .slider-container {
            margin-top: 1.5rem;
            padding: 1rem;
            background: white;
            border-radius: 0.75rem;
            border: 1px solid #e2e8f0;
        }
        
        .dark .slider-container {
            background: #1e293b;
            border-color: #334155;
        }
        
        .slider-label {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 0.75rem;
        }
        
        .slider-label-text {
            font-size: 0.875rem;
            font-weight: 600;
            color: #475569;
        }
        
        .dark .slider-label-text {
            color: #cbd5e1;
        }
        
        .slider-value {
            font-size: 0.875rem;
            font-weight: 700;
            color: #f59e0b;
        }
        
        /* Custom Range Slider */
        .time-slider {
            --slider-thumb-start: #f59e0b;
            --slider-thumb-end: #d97706;
            --slider-thumb-shadow: rgba(245, 158, 11, 0.5);
            --slider-thumb-hover-shadow: rgba(245, 158, 11, 0.6);
            height: 10px;
            border-radius: 9999px;
            background: linear-gradient(90deg, #f0f0f0 0%, #dcdcdc 100%);
            outline: none;
            appearance: none;
            -webkit-appearance: none;
            transition: all 0.3s;
        }
        
        .time-slider::-webkit-slider-thumb,
        .numQuestionsSlider::-webkit-slider-thumb {
            -webkit-appearance: none;
            appearance: none;
            width: 30px;
            height: 30px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--slider-thumb-start) 0%, var(--slider-thumb-end) 100%);
            cursor: pointer;
            box-shadow: 0 4px 12px var(--slider-thumb-shadow);
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        
        .time-slider::-webkit-slider-thumb:hover,
        .numQuestionsSlider::-webkit-slider-thumb:hover {
            transform: scale(1.2);
            box-shadow: 0 6px 20px var(--slider-thumb-hover-shadow);
        }
        
        .time-slider::-moz-range-thumb,
        .numQuestionsSlider::-moz-range-thumb {
            width: 30px;
            height: 30px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--slider-thumb-start) 0%, var(--slider-thumb-end) 100%);
            cursor: pointer;
            border: none;
            box-shadow: 0 4px 12px var(--slider-thumb-shadow);
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        
        .time-slider::-moz-range-thumb:hover,
        .numQuestionsSlider::-moz-range-thumb:hover {
            transform: scale(1.2);
            box-shadow: 0 6px 20px var(--slider-thumb-hover-shadow);
        }
        
        .slider-labels {
            display: flex;
            justify-content: space-between;
            margin-top: 0.5rem;
            font-size: 0.75rem;
            font-weight: 700;
            color: #64748b;
        }
        
        .dark .slider-labels {
            color: #94a3b8;
        }
        
        /* Count Presets */
        .count-presets {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 0.5rem;
        }
        
        @media screen and (max-width: 639px) {
            .count-presets {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        
        .count-preset-btn {
            padding: 0.75rem;
            border-radius: 0.75rem;
            border: 2px solid #e2e8f0;
            background: white;
            color: #475569;
            font-weight: 700;
            font-size: 0.875rem;
            cursor: pointer;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
        }
        
        .dark .count-preset-btn {
            background: #1e293b;
            border-color: #334155;
            color: #cbd5e1;
        }
        
        .count-preset-btn:hover {
            transform: translateY(-2px);
            background: linear-gradient(135deg, #6366f1 0%, #4f46e5 100%);
            border-color: #4f46e5;
            color: white;
            box-shadow: 0 6px 16px rgba(79, 70, 229, 0.4);
        }
        
        .count-preset-btn:active {
            transform: translateY(0);
        }
        
        .time-limit-header {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            margin-bottom: 1.5rem;
        }
        
        .time-limit-icon-wrapper {
            background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
            padding: 0.75rem;
            border-radius: 0.75rem;
            box-shadow: 0 2px 8px rgba(251, 191, 36, 0.25);
        }
        
        .dark .time-limit-icon-wrapper {
            background: linear-gradient(135deg, rgba(251, 191, 36, 0.2) 0%, rgba(245, 158, 11, 0.3) 100%);
        }
        
        /* Time Display Card */
        .time-display-card {
            background: white;
            border-radius: 1rem;
            padding: 1.5rem;
            text-align: center;
            border: 2px solid #e2e8f0;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
            transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        }
        
        .dark .time-display-card {
            background: #1e293b;
            border-color: #334155;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
        }
        
        .time-display-card:hover {
            transform: translateY(-3px) scale(1.01);
            box-shadow: 0 12px 24px rgba(0, 0, 0, 0.1);
            border-color: #B8D6D6;
        }
        
        .dark .time-display-card:hover {
            box-shadow: 0 12px 24px rgba(0, 0, 0, 0.4);
            border-color: #088395;
        }
        
        .time-display-value {
            font-size: 3.5rem;
            font-weight: 900;
            background: linear-gradient(135deg, #1e293b 0%, #5A9E9E 100%);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            line-height: 1;
            transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            letter-spacing: -0.02em;
        }
        
        .dark .time-display-value {
            background: linear-gradient(135deg, #f1f5f9 0%, #088395 100%);
            -webkit-background-clip: text;
            background-clip: text;
        }
        
        .time-display-value.updated {
            animation: pulse 0.4s ease-out;
        }
        
        @keyframes pulse {
            0% { transform: scale(1); }
            50% { transform: scale(1.12); }
            100% { transform: scale(1); }
        }
        
        .time-display-label {
            font-size: 0.875rem;
            font-weight: 700;
            color: #64748b;
            text-transform: uppercase;
            letter-spacing: 0.12em;
            margin-top: 0.75rem;
        }
        
        .dark .time-display-label {
            color: #94a3b8;
        }
        
        /* Preset Buttons Grid */
        .preset-buttons {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 0.5rem;
            margin-top: 1.25rem;
        }
        
        @media screen and (max-width: 639px) {
            .preset-buttons {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        
        @media screen and (min-width: 1024px) {
            .preset-buttons {
                grid-template-columns: repeat(6, 1fr);
            }
        }
        
        @media screen and (min-width: 1280px) {
            .preset-buttons {
                grid-template-columns: repeat(8, 1fr);
            }
        }
        
        .preset-btn {
            position: relative;
            padding: 0.75rem 0.5rem;
            border-radius: 0.75rem;
            border: 2px solid #e2e8f0;
            background: white;
            color: #475569;
            font-weight: 700;
            font-size: 0.875rem;
            cursor: pointer;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 0.25rem;
            min-height: 48px;
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
        }
        
        .dark .preset-btn {
            background: #1e293b;
            border-color: #334155;
            color: #cbd5e1;
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
        }
        
        .preset-btn:hover:not(:disabled) {
            border-color: #f59e0b;
            background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(245, 158, 11, 0.2);
        }
        
        .dark .preset-btn:hover:not(:disabled) {
            background: linear-gradient(135deg, rgba(251, 191, 36, 0.2) 0%, rgba(245, 158, 11, 0.15) 100%);
            border-color: #fbbf24;
            box-shadow: 0 4px 12px rgba(245, 158, 11, 0.3);
        }
        
        .preset-btn:focus-visible {
            outline: 2px solid #f59e0b;
            outline-offset: 2px;
        }
        
        .preset-btn.selected {
            background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
            border-color: #d97706;
            color: white;
            box-shadow: 0 6px 16px rgba(245, 158, 11, 0.5);
            transform: translateY(-2px);
            font-weight: 800;
        }
        
        .preset-btn.selected:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 20px rgba(245, 158, 11, 0.6);
        }
        
        .preset-btn:disabled {
            opacity: 0.5;
            cursor: not-allowed;
        }

        /* Preset Mode Buttons */
        .preset-mode-btn {
            position: relative;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            overflow: hidden;
        }

        .preset-mode-btn::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(135deg, transparent 0%, rgba(255, 255, 255, 0.1) 100%);
            pointer-events: none;
        }

        .preset-mode-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
        }

        .dark .preset-mode-btn:hover {
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
        }

        .preset-mode-btn:active {
            transform: translateY(0);
        }
        
        /* Slider Container */
        .slider-container {
            margin-top: 1.5rem;
            padding: 1rem;
            background: white;
            border-radius: 0.75rem;
            border: 1px solid #e2e8f0;
        }
        
        .dark .slider-container {
            background: #1e293b;
            border-color: #334155;
        }
        
        .slider-label {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 0.75rem;
        }
        
        .slider-label-text {
            font-size: 0.875rem;
            font-weight: 600;
            color: #475569;
        }
        
        .dark .slider-label-text {
            color: #cbd5e1;
        }
        
        .slider-value {
            font-size: 0.875rem;
            font-weight: 700;
            color: #f59e0b;
        }
        
        /* Custom Range Slider */
        .time-slider {
            --slider-thumb-start: #f59e0b;
            --slider-thumb-end: #d97706;
            --slider-thumb-shadow: rgba(245, 158, 11, 0.5);
            --slider-thumb-hover-shadow: rgba(245, 158, 11, 0.6);
            height: 10px;
            border-radius: 9999px;
            background: linear-gradient(90deg, #f0f0f0 0%, #dcdcdc 100%);
            outline: none;
            appearance: none;
            -webkit-appearance: none;
            transition: all 0.3s;
        }
        
        .time-slider::-webkit-slider-thumb,
        .numQuestionsSlider::-webkit-slider-thumb {
            -webkit-appearance: none;
            appearance: none;
            width: 30px;
            height: 30px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--slider-thumb-start) 0%, var(--slider-thumb-end) 100%);
            cursor: pointer;
            box-shadow: 0 4px 12px var(--slider-thumb-shadow);
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        
        .time-slider::-webkit-slider-thumb:hover,
        .numQuestionsSlider::-webkit-slider-thumb:hover {
            transform: scale(1.2);
            box-shadow: 0 6px 20px var(--slider-thumb-hover-shadow);
        }
        
        .time-slider::-moz-range-thumb,
        .numQuestionsSlider::-moz-range-thumb {
            width: 30px;
            height: 30px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--slider-thumb-start) 0%, var(--slider-thumb-end) 100%);
            cursor: pointer;
            border: none;
            box-shadow: 0 4px 12px var(--slider-thumb-shadow);
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        
        .time-slider::-moz-range-thumb:hover,
        .numQuestionsSlider::-moz-range-thumb:hover {
            transform: scale(1.2);
            box-shadow: 0 6px 20px var(--slider-thumb-hover-shadow);
        }
        
        .slider-labels {
            display: flex;
            justify-content: space-between;
            margin-top: 0.5rem;
            font-size: 0.75rem;
            font-weight: 700;
            color: #64748b;
        }
        
        .dark .slider-labels {
            color: #94a3b8;
        }
        
        /* Count Presets */
        .count-presets {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 0.5rem;
        }
        
        @media screen and (max-width: 639px) {
            .count-presets {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        
        .count-preset-btn {
            padding: 0.75rem;
            border-radius: 0.75rem;
            border: 2px solid #e2e8f0;
            background: white;
            color: #475569;
            font-weight: 700;
            font-size: 0.875rem;
            cursor: pointer;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
        }
        
        .dark .count-preset-btn {
            background: #1e293b;
            border-color: #334155;
            color: #cbd5e1;
        }
        
        .count-preset-btn:hover {
            transform: translateY(-2px);
            background: linear-gradient(135deg, #6366f1 0%, #4f46e5 100%);
            border-color: #4f46e5;
            color: white;
            box-shadow: 0 6px 16px rgba(79, 70, 229, 0.4);
        }
        
        .count-preset-btn:active {
            transform: translateY(0);
        }
        
        .time-limit-header {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            margin-bottom: 1.5rem;
        }
        
        .time-limit-icon-wrapper {
            background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
            padding: 0.75rem;
            border-radius: 0.75rem;
            box-shadow: 0 2px 8px rgba(251, 191, 36, 0.25);
        }
        
        .dark .time-limit-icon-wrapper {
            background: linear-gradient(135deg, rgba(251, 191, 36, 0.2) 0%, rgba(245, 158, 11, 0.3) 100%);
        }
        
        /* Time Display Card */
        .time-display-card {
            background: white;
            border-radius: 1rem;
            padding: 1.5rem;
            text-align: center;
            border: 2px solid #e2e8f0;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
            transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        }
        
        .dark .time-display-card {
            background: #1e293b;
            border-color: #334155;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
        }
        
        .time-display-card:hover {
            transform: translateY(-3px) scale(1.01);
            box-shadow: 0 12px 24px rgba(0, 0, 0, 0.1);
            border-color: #B8D6D6;
        }
        
        .dark .time-display-card:hover {
            box-shadow: 0 12px 24px rgba(0, 0, 0, 0.4);
            border-color: #088395;
        }
        
        .time-display-value {
            font-size: 3.5rem;
            font-weight: 900;
            background: linear-gradient(135deg, #1e293b 0%, #5A9E9E 100%);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            line-height: 1;
            transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            letter-spacing: -0.02em;
        }
        
        .dark .time-display-value {
            background: linear-gradient(135deg, #f1f5f9 0%, #088395 100%);
            -webkit-background-clip: text;
            background-clip: text;
        }
        
        .time-display-value.updated {
            animation: pulse 0.4s ease-out;
        }
        
        @keyframes pulse {
            0% { transform: scale(1); }
            50% { transform: scale(1.12); }
            100% { transform: scale(1); }
        }
        
        .time-display-label {
            font-size: 0.875rem;
            font-weight: 700;
            color: #64748b;
            text-transform: uppercase;
            letter-spacing: 0.12em;
            margin-top: 0.75rem;
        }
        
        .dark .time-display-label {
            color: #94a3b8;
        }
        
        /* Preset Buttons Grid */
        .preset-buttons {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 0.5rem;
            margin-top: 1.25rem;
        }
        
        @media screen and (max-width: 639px) {
            .preset-buttons {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        
        @media screen and (min-width: 1024px) {
            .preset-buttons {
                grid-template-columns: repeat(6, 1fr);
            }
        }
        
        @media screen and (min-width: 1280px) {
            .preset-buttons {
                grid-template-columns: repeat(8, 1fr);
            }
        }
        
        .preset-btn {
            position: relative;
            padding: 0.75rem 0.5rem;
            border-radius: 0.75rem;
            border: 2px solid #e2e8f0;
            background: white;
            color: #475569;
            font-weight: 700;
            font-size: 0.875rem;
            cursor: pointer;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 0.25rem;
            min-height: 48px;
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
        }
        
        .dark .preset-btn {
            background: #1e293b;
            border-color: #334155;
            color: #cbd5e1;
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
        }
        
        .preset-btn:hover:not(:disabled) {
            border-color: #f59e0b;
            background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(245, 158, 11, 0.2);
        }
        
        .dark .preset-btn:hover:not(:disabled) {
            background: linear-gradient(135deg, rgba(251, 191, 36, 0.2) 0%, rgba(245, 158, 11, 0.15) 100%);
            border-color: #fbbf24;
            box-shadow: 0 4px 12px rgba(245, 158, 11, 0.3);
        }
        
        .preset-btn:focus-visible {
            outline: 2px solid #f59e0b;
            outline-offset: 2px;
        }
        
        .preset-btn.selected {
            background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
            border-color: #d97706;
            color: white;
            box-shadow: 0 6px 16px rgba(245, 158, 11, 0.5);
            transform: translateY(-2px);
            font-weight: 800;
        }
        
        .preset-btn.selected:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 20px rgba(245, 158, 11, 0.6);
        }
        
        .preset-btn:disabled {
            opacity: 0.5;
            cursor: not-allowed;
        }

        /* Preset Mode Buttons */
        .preset-mode-btn {
            position: relative;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            overflow: hidden;
        }

        .preset-mode-btn::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(135deg, transparent 0%, rgba(255, 255, 255, 0.1) 100%);
            pointer-events: none;
        }

        .preset-mode-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
        }

        .dark .preset-mode-btn:hover {
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
        }

        .preset-mode-btn:active {
            transform: translateY(0);
        }
        
        /* Slider Container */
        .slider-container {
            margin-top: 1.5rem;
            padding: 1rem;
            background: white;
            border-radius: 0.75rem;
            border: 1px solid #e2e8f0;
        }
        
        .dark .slider-container {
            background: #1e293b;
            border-color: #334155;
        }
        
        .slider-label {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 0.75rem;
        }
        
        .slider-label-text {
            font-size: 0.875rem;
            font-weight: 600;
            color: #475569;
        }
        
        .dark .slider-label-text {
            color: #cbd5e1;
        }
        
        .slider-value {
            font-size: 0.875rem;
            font-weight: 700;
            color: #f59e0b;
        }
        
        /* Custom Range Slider */
        .time-slider {
            --slider-thumb-start: #f59e0b;
            --slider-thumb-end: #d97706;
            --slider-thumb-shadow: rgba(245, 158, 11, 0.5);
            --slider-thumb-hover-shadow: rgba(245, 158, 11, 0.6);
            height: 10px;
            border-radius: 9999px;
            background: linear-gradient(90deg, #f0f0f0 0%, #dcdcdc 100%);
            outline: none;
            appearance: none;
            -webkit-appearance: none;
            transition: all 0.3s;
        }
        
        .time-slider::-webkit-slider-thumb,
        .numQuestionsSlider::-webkit-slider-thumb {
            -webkit-appearance: none;
            appearance: none;
            width: 30px;
            height: 30px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--slider-thumb-start) 0%, var(--slider-thumb-end) 100%);
            cursor: pointer;
            box-shadow: 0 4px 12px var(--slider-thumb-shadow);
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        
        .time-slider::-webkit-slider-thumb:hover,
        .numQuestionsSlider::-webkit-slider-thumb:hover {
            transform: scale(1.2);
            box-shadow: 0 6px 20px var(--slider-thumb-hover-shadow);
        }
        
        .time-slider::-moz-range-thumb,
        .numQuestionsSlider::-moz-range-thumb {
            width: 30px;
            height: 30px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--slider-thumb-start) 0%, var(--slider-thumb-end) 100%);
            cursor: pointer;
            border: none;
            box-shadow: 0 4px 12px var(--slider-thumb-shadow);
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        
        .time-slider::-moz-range-thumb:hover,
        .numQuestionsSlider::-moz-range-thumb:hover {
            transform: scale(1.2);
            box-shadow: 0 6px 20px var(--slider-thumb-hover-shadow);
        }
        
        .slider-labels {
            display: flex;
            justify-content: space-between;
            margin-top: 0.5rem;
            font-size: 0.75rem;
            font-weight: 700;
            color: #64748b;
        }
        
        .dark .slider-labels {
            color: #94a3b8;
        }
        
        /* Count Presets */
        .count-presets {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 0.5rem;
        }
        
        @media screen and (max-width: 639px) {
            .count-presets {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        
        .count-preset-btn {
            padding: 0.75rem;
            border-radius: 0.75rem;
            border: 2px solid #e2e8f0;
            background: white;
            color: #475569;
            font-weight: 700;
            font-size: 0.875rem;
            cursor: pointer;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
        }
        
        .dark .count-preset-btn {
            background: #1e293b;
            border-color: #334155;
            color: #cbd5e1;
        }
        
        .count-preset-btn:hover {
            transform: translateY(-2px);
            background: linear-gradient(135deg, #6366f1 0%, #4f46e5 100%);
            border-color: #4f46e5;
            color: white;
            box-shadow: 0 6px 16px rgba(79, 70, 229, 0.4);
        }
        
        .count-preset-btn:active {
            transform: translateY(0);
        }
        
        .time-limit-header {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            margin-bottom: 1.5rem;
        }
        
        .time-limit-icon-wrapper {
            background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
            padding: 0.75rem;
            border-radius: 0.75rem;
            box-shadow: 0 2px 8px rgba(251, 191, 36, 0.25);
        }
        
        .dark .time-limit-icon-wrapper {
            background: linear-gradient(135deg, rgba(251, 191, 36, 0.2) 0%, rgba(245, 158, 11, 0.3) 100%);
        }
        
        /* Time Display Card */
        .time-display-card {
            background: white;
            border-radius: 1rem;
            padding: 1.5rem;
            text-align: center;
            border: 2px solid #e2e8f0;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
            transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        }
        
        .dark .time-display-card {
            background: #1e293b;
            border-color: #334155;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
        }
        
        .time-display-card:hover {
            transform: translateY(-3px) scale(1.01);
            box-shadow: 0 12px 24px rgba(0, 0, 0, 0.1);
            border-color: #B8D6D6;
        }
        
        .dark .time-display-card:hover {
            box-shadow: 0 12px 24px rgba(0, 0, 0, 0.4);
            border-color: #088395;
        }
        
        .time-display-value {
            font-size: 3.5rem;
            font-weight: 900;
            background: linear-gradient(135deg, #1e293b 0%, #5A9E9E 100%);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            line-height: 1;
            transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            letter-spacing: -0.02em;
        }
        
        .dark .time-display-value {
            background: linear-gradient(135deg, #f1f5f9 0%, #088395 100%);
            -webkit-background-clip: text;
            background-clip: text;
        }
        
        .time-display-value.updated {
            animation: pulse 0.4s ease-out;
        }
        
        @keyframes pulse {
            0% { transform: scale(1); }
            50% { transform: scale(1.12); }
            100% { transform: scale(1); }
        }
        
        .time-display-label {
            font-size: 0.875rem;
            font-weight: 700;
            color: #64748b;
            text-transform: uppercase;
            letter-spacing: 0.12em;
            margin-top: 0.75rem;
        }
        
        .dark .time-display-label {
            color: #94a3b8;
        }
        
        /* Preset Buttons Grid */
        .preset-buttons {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 0.5rem;
            margin-top: 1.25rem;
        }
        
        @media screen and (max-width: 639px) {
            .preset-buttons {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        
        @media screen and (min-width: 1024px) {
            .preset-buttons {
                grid-template-columns: repeat(6, 1fr);
            }
        }
        
        @media screen and (min-width: 1280px) {
            .preset-buttons {
                grid-template-columns: repeat(8, 1fr);
            }
        }
        
        .preset-btn {
            position: relative;
            padding: 0.75rem 0.5rem;
            border-radius: 0.75rem;
            border: 2px solid #e2e8f0;
            background: white;
            color: #475569;
            font-weight: 700;
            font-size: 0.875rem;
            cursor: pointer;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 0.25rem;
            min-height: 48px;
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
        }
        
        .dark .preset-btn {
            background: #1e293b;
            border-color: #334155;
            color: #cbd5e1;
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
        }
        
        .preset-btn:hover:not(:disabled) {
            border-color: #f59e0b;
            background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(245, 158, 11, 0.2);
        }
        
        .dark .preset-btn:hover:not(:disabled) {
            background: linear-gradient(135deg, rgba(251, 191, 36, 0.2) 0%, rgba(245, 158, 11, 0.15) 100%);
            border-color: #fbbf24;
            box-shadow: 0 4px 12px rgba(245, 158, 11, 0.3);
        }
        
        .preset-btn:focus-visible {
            outline: 2px solid #f59e0b;
            outline-offset: 2px;
        }
        
        .preset-btn.selected {
            background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
            border-color: #d97706;
            color: white;
            box-shadow: 0 6px 16px rgba(245, 158, 11, 0.5);
            transform: translateY(-2px);
            font-weight: 800;
        }
        
        .preset-btn.selected:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 20px rgba(245, 158, 11, 0.6);
        }
        
        .preset-btn:disabled {
            opacity: 0.5;
            cursor: not-allowed;
        }

        /* Preset Mode Buttons */
        .preset-mode-btn {
            position: relative;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            overflow: hidden;
        }

        .preset-mode-btn::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(135deg, transparent 0%, rgba(255, 255, 255, 0.1) 100%);
            pointer-events: none;
        }

        .preset-mode-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
        }

        .dark .preset-mode-btn:hover {
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
        }

        .preset-mode-btn:active {
            transform: translateY(0);
        }
        
        /* Slider Container */
        .slider-container {
            margin-top: 1.5rem;
            padding: 1rem;
            background: white;
            border-radius: 0.75rem;
            border: 1px solid #e2e8f0;
        }
        
        .dark .slider-container {
            background: #1e293b;
            border-color: #334155;
        }
        
        .slider-label {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 0.75rem;
        }
        
        .slider-label-text {
            font-size: 0.875rem;
            font-weight: 600;
            color: #475569;
        }
        
        .dark .slider-label-text {
            color: #cbd5e1;
        }
        
        .slider-value {
            font-size: 0.875rem;
            font-weight: 700;
            color: #f59e0b;
        }
        
        /* Custom Range Slider */
        .time-slider {
            --slider-thumb-start: #f59e0b;
            --slider-thumb-end: #d97706;
            --slider-thumb-shadow: rgba(245, 158, 11, 0.5);
            --slider-thumb-hover-shadow: rgba(245, 158, 11, 0.6);
            height: 10px;
            border-radius: 9999px;
            background: linear-gradient(90deg, #f0f0f0 0%, #dcdcdc 100%);
            outline: none;
            appearance: none;
            -webkit-appearance: none;
            transition: all 0.3s;
        }
        
        .time-slider::-webkit-slider-thumb,
        .numQuestionsSlider::-webkit-slider-thumb {
            -webkit-appearance: none;
            appearance: none;
            width: 30px;
            height: 30px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--slider-thumb-start) 0%, var(--slider-thumb-end) 100%);
            cursor: pointer;
            box-shadow: 0 4px 12px var(--slider-thumb-shadow);
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        
        .time-slider::-webkit-slider-thumb:hover,
        .numQuestionsSlider::-webkit-slider-thumb:hover {
            transform: scale(1.2);
            box-shadow: 0 6px 20px var(--slider-thumb-hover-shadow);
        }
        
        .time-slider::-moz-range-thumb,
        .numQuestionsSlider::-moz-range-thumb {
            width: 30px;
            height: 30px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--slider-thumb-start) 0%, var(--slider-thumb-end) 100%);
            cursor: pointer;
            border: none;
            box-shadow: 0 4px 12px var(--slider-thumb-shadow);
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        
        .time-slider::-moz-range-thumb:hover,
        .numQuestionsSlider::-moz-range-thumb:hover {
            transform: scale(1.2);
            box-shadow: 0 6px 20px var(--slider-thumb-hover-shadow);
        }
        
        .slider-labels {
            display: flex;
            justify-content: space-between;
            margin-top: 0.5rem;
            font-size: 0.75rem;
            font-weight: 700;
            color: #64748b;
        }
        
        .dark .slider-labels {
            color: #94a3b8;
        }
        
        /* Count Presets */
        .count-presets {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 0.5rem;
        }
        
        @media screen and (max-width: 639px) {
            .count-presets {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        
        .count-preset-btn {
            padding: 0.75rem;
            border-radius: 0.75rem;
            border: 2px solid #e2e8f0;
            background: white;
            color: #475569;
            font-weight: 700;
            font-size: 0.875rem;
            cursor: pointer;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
        }
        
        .dark .count-preset-btn {
            background: #1e293b;
            border-color: #334155;
            color: #cbd5e1;
        }
        
        .count-preset-btn:hover {
            transform: translateY(-2px);
            background: linear-gradient(135deg, #6366f1 0%, #4f46e5 100%);
            border-color: #4f46e5;
            color: white;
            box-shadow: 0 6px 16px rgba(79, 70, 229, 0.4);
        }
        
        .count-preset-btn:active {
            transform: translateY(0);
        }
        
        .time-limit-header {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            margin-bottom: 1.5rem;
        }
        
        .time-limit-icon-wrapper {
            background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
            padding: 0.75rem;
            border-radius: 0.75rem;
            box-shadow: 0 2px 8px rgba(251, 191, 36, 0.25);
        }
        
        .dark .time-limit-icon-wrapper {
            background: linear-gradient(135deg, rgba(251, 191, 36, 0.2) 0%, rgba(245, 158, 11, 0.3) 100%);
        }
        
        /* Time Display Card */
        .time-display-card {
            background: white;
            border-radius: 1rem;
            padding: 1.5rem;
            text-align: center;
            border: 2px solid #e2e8f0;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
            transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        }
        
        .dark .time-display-card {
            background: #1e293b;
            border-color: #334155;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
        }
        
        .time-display-card:hover {
            transform: translateY(-3px) scale(1.01);
            box-shadow: 0 12px 24px rgba(0, 0, 0, 0.1);
            border-color: #B8D6D6;
        }
        
        .dark .time-display-card:hover {
            box-shadow: 0 12px 24px rgba(0, 0, 0, 0.4);
            border-color: #088395;
        }
        
        .time-display-value {
            font-size: 3.5rem;
            font-weight: 900;
            background: linear-gradient(135deg, #1e293b 0%, #5A9E9E 100%);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            line-height: 1;
            transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            letter-spacing: -0.02em;
        }
        
        .dark .time-display-value {
            background: linear-gradient(135deg, #f1f5f9 0%, #088395 100%);
            -webkit-background-clip: text;
            background-clip: text;
        }
        
        .time-display-value.updated {
            animation: pulse 0.4s ease-out;
        }
        
        @keyframes pulse {
            0% { transform: scale(1); }
            50% { transform: scale(1.12); }
            100% { transform: scale(1); }
        }
        
        .time-display-label {
            font-size: 0.875rem;
            font-weight: 700;
            color: #64748b;
            text-transform: uppercase;
            letter-spacing: 0.12em;
            margin-top: 0.75rem;
        }
        
        .dark .time-display-label {
            color: #94a3b8;
        }
        
        /* Preset Buttons Grid */
        .preset-buttons {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 0.5rem;
            margin-top: 1.25rem;
        }
        
        @media screen and (max-width: 639px) {
            .preset-buttons {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        
        @media screen and (min-width: 1024px) {
            .preset-buttons {
                grid-template-columns: repeat(6, 1fr);
            }
        }
        
        @media screen and (min-width: 1280px) {
            .preset-buttons {
                grid-template-columns: repeat(8, 1fr);
            }
        }
        
        .preset-btn {
            position: relative;
            padding: 0.75rem 0.5rem;
            border-radius: 0.75rem;
            border: 2px solid #e2e8f0;
            background: white;
            color: #475569;
            font-weight: 700;
            font-size: 0.875rem;
            cursor: pointer;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 0.25rem;
            min-height: 48px;
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
        }
        
        .dark .preset-btn {
            background: #1e293b;
            border-color: #334155;
            color: #cbd5e1;
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
        }
        
        .preset-btn:hover:not(:disabled) {
            border-color: #f59e0b;
            background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(245, 158, 11, 0.2);
        }
        
        .dark .preset-btn:hover:not(:disabled) {
            background: linear-gradient(135deg, rgba(251, 191, 36, 0.2) 0%, rgba(245, 158, 11, 0.15) 100%);
            border-color: #fbbf24;
            box-shadow: 0 4px 12px rgba(245, 158, 11, 0.3);
        }
        
        .preset-btn:focus-visible {
            outline: 2px solid #f59e0b;
            outline-offset: 2px;
        }
        
        .preset-btn.selected {
            background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
            border-color: #d97706;
            color: white;
            box-shadow: 0 6px 16px rgba(245, 158, 11, 0.5);
            transform: translateY(-2px);
            font-weight: 800;
        }
        
        .preset-btn.selected:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 20px rgba(245, 158, 11, 0.6);
        }
        
        .preset-btn:disabled {
            opacity: 0.5;
            cursor: not-allowed;
        }

        /* Preset Mode Buttons */
        .preset-mode-btn {
            position: relative;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            overflow: hidden;
        }

        .preset-mode-btn::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(135deg, transparent 0%, rgba(255, 255, 255, 0.1) 100%);
            pointer-events: none;
        }

        .preset-mode-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
        }

        .dark .preset-mode-btn:hover {
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
        }

        .preset-mode-btn:active {
            transform: translateY(0);
        }
        
        /* Slider Container */
        .slider-container {
            margin-top: 1.5rem;
            padding: 1rem;
            background: white;
            border-radius: 0.75rem;
            border: 1px solid #e2e8f0;
        }
        
        .dark .slider-container {
            background: #1e293b;
            border-color: #334155;
        }
        
        .slider-label {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 0.75rem;
        }
        
        .slider-label-text {
            font-size: 0.875rem;
            font-weight: 600;
            color: #475569;
        }
        
        .dark .slider-label-text {
            color: #cbd5e1;
        }
        
        .slider-value {
            font-size: 0.875rem;
            font-weight: 700;
            color: #f59e0b;
        }
        
        /* Custom Range Slider */
        .time-slider {
            --slider-thumb-start: #f59e0b;
            --slider-thumb-end: #d97706;
            --slider-thumb-shadow: rgba(245, 158, 11, 0.5);
            --slider-thumb-hover-shadow: rgba(245, 158, 11, 0.6);
            height: 10px;
            border-radius: 9999px;
            background: linear-gradient(90deg, #f0f0f0 0%, #dcdcdc 100%);
            outline: none;
            appearance: none;
            -webkit-appearance: none;
            transition: all 0.3s;
        }
        
        .time-slider::-webkit-slider-thumb,
        .numQuestionsSlider::-webkit-slider-thumb {
            -webkit-appearance: none;
            appearance: none;
            width: 30px;
            height: 30px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--slider-thumb-start) 0%, var(--slider-thumb-end) 100%);
            cursor: pointer;
            box-shadow: 0 4px 12px var(--slider-thumb-shadow);
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        
        .time-slider::-webkit-slider-thumb:hover,
        .numQuestionsSlider::-webkit-slider-thumb:hover {
            transform: scale(1.2);
            box-shadow: 0 6px 20px var(--slider-thumb-hover-shadow);
        }
        
        .time-slider::-moz-range-thumb,
        .numQuestionsSlider::-moz-range-thumb {
            width: 30px;
            height: 30px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--slider-thumb-start) 0%, var(--slider-thumb-end) 100%);
            cursor: pointer;
            border: none;
            box-shadow: 0 4px 12px var(--slider-thumb-shadow);
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        
        .time-slider::-moz-range-thumb:hover,
        .numQuestionsSlider::-moz-range-thumb:hover {
            transform: scale(1.2);
            box-shadow: 0 6px 20px var(--slider-thumb-hover-shadow);
        }
        
        .slider-labels {
            display: flex;
            justify-content: space-between;
            margin-top: 0.5rem;
            font-size: 0.75rem;
            font-weight: 700;
            color: #64748b;
        }
        
        .dark .slider-labels {
            color: #94a3b8;
        }
        
        /* Count Presets */
        .count-presets {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 0.5rem;
        }
        
        @media screen and (max-width: 639px) {
            .count-presets {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        
        .count-preset-btn {
            padding: 0.75rem;
            border-radius: 0.75rem;
            border: 2px solid #e2e8f0;
            background: white;
            color: #475569;
            font-weight: 700;
            font-size: 0.875rem;
            cursor: pointer;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
        }
        
        .dark .count-preset-btn {
            background: #1e293b;
            border-color: #334155;
            color: #cbd5e1;
        }
        
        .count-preset-btn:hover {
            transform: translateY(-2px);
            background: linear-gradient(135deg, #6366f1 0%, #4f46e5 100%);
            border-color: #4f46e5;
            color: white;
            box-shadow: 0 6px 16px rgba(79, 70, 229, 0.4);
        }
        
        .count-preset-btn:active {
            transform: translateY(0);
        }
        
        .time-limit-header {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            margin-bottom: 1.5rem;
        }
        
        .time-limit-icon-wrapper {
            background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
            padding: 0.75rem;
            border-radius: 0.75rem;
            box-shadow: 0 2px 8px rgba(251, 191, 36, 0.25);
        }
        
        .dark .time-limit-icon-wrapper {
            background: linear-gradient(135deg, rgba(251, 191, 36, 0.2) 0%, rgba(245, 158, 11, 0.3) 100%);
        }
        
        /* Time Display Card */
        .time-display-card {
            background: white;
            border-radius: 1rem;
            padding: 1.5rem;
            text-align: center;
            border: 2px solid #e2e8f0;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
            transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        }
        
        .dark .time-display-card {
            background: #1e293b;
            border-color: #334155;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
        }
        
        .time-display-card:hover {
            transform: translateY(-3px) scale(1.01);
            box-shadow: 0 12px 24px rgba(0, 0, 0, 0.1);
            border-color: #B8D6D6;
        }
        
        .dark .time-display-card:hover {
            box-shadow: 0 12px 24px rgba(0, 0, 0, 0.4);
            border-color: #088395;
        }
        
        .time-display-value {
            font-size: 3.5rem;
            font-weight: 900;
            background: linear-gradient(135deg, #1e293b 0%, #5A9E9E 100%);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            line-height: 1;
            transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            letter-spacing: -0.02em;
        }
        
        .dark .time-display-value {
            background: linear-gradient(135deg, #f1f5f9 0%, #088395 100%);
            -webkit-background-clip: text;
            background-clip: text;
        }
        
        .time-display-value.updated {
            animation: pulse 0.4s ease-out;
        }
        
        @keyframes pulse {
            0% { transform: scale(1); }
            50% { transform: scale(1.12); }
            100% { transform: scale(1); }
        }
        
        .time-display-label {
            font-size: 0.875rem;
            font-weight: 700;
            color: #64748b;
            text-transform: uppercase;
            letter-spacing: 0.12em;
            margin-top: 0.75rem;
        }
        
        .dark .time-display-label {
            color: #94a3b8;
        }
        
        /* Preset Buttons Grid */
        .preset-buttons {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 0.5rem;
            margin-top: 1.25rem;
        }
        
        @media screen and (max-width: 639px) {
            .preset-buttons {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        
        @media screen and (min-width: 1024px) {
            .preset-buttons {
                grid-template-columns: repeat(6, 1fr);
            }
        }
        
        @media screen and (min-width: 1280px) {
            .preset-buttons {
                grid-template-columns: repeat(8, 1fr);
            }
        }
        
        .preset-btn {
            position: relative;
            padding: 0.75rem 0.5rem;
            border-radius: 0.75rem;
            border: 2px solid #e2e8f0;
            background: white;
            color: #475569;
            font-weight: 700;
            font-size: 0.875rem;
            cursor: pointer;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 0.25rem;
            min-height: 48px;
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
        }
        
        .dark .preset-btn {
            background: #1e293b;
            border-color: #334155;
            color: #cbd5e1;
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
        }
        
        .preset-btn:hover:not(:disabled) {
            border-color: #f59e0b;
            background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(245, 158, 11, 0.2);
        }
        
        .dark .preset-btn:hover:not(:disabled) {
            background: linear-gradient(135deg, rgba(251, 191, 36, 0.2) 0%, rgba(245, 158, 11, 0.15) 100%);
            border-color: #fbbf24;
            box-shadow: 0 4px 12px rgba(245, 158, 11, 0.3);
        }
        
        .preset-btn:focus-visible {
            outline: 2px solid #f59e0b;
            outline-offset: 2px;
        }
        
        .preset-btn.selected {
            background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
            border-color: #d97706;
            color: white;
            box-shadow: 0 6px 16px rgba(245, 158, 11, 0.5);
            transform: translateY(-2px);
            font-weight: 800;
        }
        
        .preset-btn.selected:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 20px rgba(245, 158, 11, 0.6);
        }
        
        .preset-btn:disabled {
            opacity: 0.5;
            cursor: not-allowed;
        }

        /* Preset Mode Buttons */
        .preset-mode-btn {
            position: relative;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            overflow: hidden;
        }

        .preset-mode-btn::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(135deg, transparent 0%, rgba(255, 255, 255, 0.1) 100%);
            pointer-events: none;
        }

        .preset-mode-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
        }

        .dark .preset-mode-btn:hover {
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
        }

        .preset-mode-btn:active {
            transform: translateY(0);
        }
        
        /* Slider Container */
        .slider-container {
            margin-top: 1.5rem;
            padding: 1rem;
            background: white;
            border-radius: 0.75rem;
            border: 1px solid #e2e8f0;
        }
        
        .dark .slider-container {
            background: #1e293b;
            border-color: #334155;
        }
        
        .slider-label {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 0.75rem;
        }
        
        .slider-label-text {
            font-size: 0.875rem;
            font-weight: 600;
            color: #475569;
        }
        
        .dark .slider-label-text {
            color: #cbd5e1;
        }
        
        .slider-value {
            font-size: 0.875rem;
            font-weight: 700;
            color: #f59e0b;
        }
        
        /* Custom Range Slider */
        .time-slider {
            --slider-thumb-start: #f59e0b;
            --slider-thumb-end: #d97706;
            --slider-thumb-shadow: rgba(245, 158, 11, 0.5);
            --slider-thumb-hover-shadow: rgba(245, 158, 11, 0.6);
            height: 10px;
            border-radius: 9999px;
            background: linear-gradient(90deg, #f0f0f0 0%, #dcdcdc 100%);
            outline: none;
            appearance: none;
            -webkit-appearance: none;
            transition: all 0.3s;
        }
        
        .time-slider::-webkit-slider-thumb,
        .numQuestionsSlider::-webkit-slider-thumb {
            -webkit-appearance: none;
            appearance: none;
            width: 30px;
            height: 30px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--slider-thumb-start) 0%, var(--slider-thumb-end) 100%);
            cursor: pointer;
            box-shadow: 0 4px 12px var(--slider-thumb-shadow);
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        
        .time-slider::-webkit-slider-thumb:hover,
        .numQuestionsSlider::-webkit-slider-thumb:hover {
            transform: scale(1.2);
            box-shadow: 0 6px 20px var(--slider-thumb-hover-shadow);
        }
        
        .time-slider::-moz-range-thumb,
        .numQuestionsSlider::-moz-range-thumb {
            width: 30px;
            height: 30px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--slider-thumb-start) 0%, var(--slider-thumb-end) 100%);
            cursor: pointer;
            border: none;
            box-shadow: 0 4px 12px var(--slider-thumb-shadow);
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        
        .time-slider::-moz-range-thumb:hover,
        .numQuestionsSlider::-moz-range-thumb:hover {
            transform: scale(1.2);
            box-shadow: 0 6px 20px var(--slider-thumb-hover-shadow);
        }
        
        .slider-labels {
            display: flex;
            justify-content: space-between;
            margin-top: 0.5rem;
            font-size: 0.75rem;
            font-weight: 700;
            color: #64748b;
        }
        
        .dark .slider-labels {
            color: #94a3b8;
        }
        
        /* Count Presets */
        .count-presets {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 0.5rem;
        }
        
        @media screen and (max-width: 639px) {
            .count-presets {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        
        .count-preset-btn {
            padding: 0.75rem;
            border-radius: 0.75rem;
            border: 2px solid #e2e8f0;
            background: white;
            color: #475569;
            font-weight: 700;
            font-size: 0.875rem;
            cursor: pointer;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
        }
        
        .dark .count-preset-btn {
            background: #1e293b;
            border-color: #334155;
            color: #cbd5e1;
        }
        
        .count-preset-btn:hover {
            transform: translateY(-2px);
            background: linear-gradient(135deg, #6366f1 0%, #4f46e5 100%);
            border-color: #4f46e5;
            color: white;
            box-shadow: 0 6px 16px rgba(79, 70, 229, 0.4);
        }
        
        .count-preset-btn:active {
            transform: translateY(0);
        }
        
        .time-limit-header {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            margin-bottom: 1.5rem;
        }
        
        .time-limit-icon-wrapper {
            background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
            padding: 0.75rem;
            border-radius: 0.75rem;
            box-shadow: 0 2px 8px rgba(251, 191, 36, 0.25);
        }
        
        .dark .time-limit-icon-wrapper {
            background: linear-gradient(135deg, rgba(251, 191, 36, 0.2) 0%, rgba(245, 158, 11, 0.3) 100%);
        }
        
        /* Time Display Card */
        .time-display-card {
            background: white;
            border-radius: 1rem;
            padding: 1.5rem;
            text-align: center;
            border: 2px solid #e2e8f0;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
            transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        }
        
        .dark .time-display-card {
            background: #1e293b;
            border-color: #334155;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
        }
        
        .time-display-card:hover {
            transform: translateY(-3px) scale(1.01);
            box-shadow: 0 12px 24px rgba(0, 0, 0, 0.1);
            border-color: #B8D6D6;
        }
        
        .dark .time-display-card:hover {
            box-shadow: 0 12px 24px rgba(0, 0, 0, 0.4);
            border-color: #088395;
        }
        
        .time-display-value {
            font-size: 3.5rem;
            font-weight: 900;
            background: linear-gradient(135deg, #1e293b 0%, #5A9E9E 100%);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            line-height: 1;
            transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            letter-spacing: -0.02em;
        }
        
        .dark .time-display-value {
            background: linear-gradient(135deg, #f1f5f9 0%, #088395 100%);
            -webkit-background-clip: text;
            background-clip: text;
        }
        
        .time-display-value.updated {
            animation: pulse 0.4s ease-out;
        }
        
        @keyframes pulse {
            0% { transform: scale(1); }
            50% { transform: scale(1.12); }
            100% { transform: scale(1); }
        }
        
        .time-display-label {
            font-size: 0.875rem;
            font-weight: 700;
            color: #64748b;
            text-transform: uppercase;
            letter-spacing: 0.12em;
            margin-top: 0.75rem;
        }
        
        .dark .time-display-label {
            color: #94a3b8;
        }
        
        /* Preset Buttons Grid */
        .preset-buttons {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 0.5rem;
            margin-top: 1.25rem;
        }
        
        @media screen and (max-width: 639px) {
            .preset-buttons {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        
        @media screen and (min-width: 1024px) {
            .preset-buttons {
                grid-template-columns: repeat(6, 1fr);
            }
        }
        
        @media screen and (min-width: 1280px) {
            .preset-buttons {
                grid-template-columns: repeat(8, 1fr);
            }
        }
        
        .preset-btn {
            position: relative;
            padding: 0.75rem 0.5rem;
            border-radius: 0.75rem;
            border: 2px solid #e2e8f0;
            background: white;
            color: #475569;
            font-weight: 700;
            font-size: 0.875rem;
            cursor: pointer;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 0.25rem;
            min-height: 48px;
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
        }
        
        .dark .preset-btn {
            background: #1e293b;
            border-color: #334155;
            color: #cbd5e1;
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
        }
        
        .preset-btn:hover:not(:disabled) {
            border-color: #f59e0b;
            background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(245, 158, 11, 0.2);
        }

        .dark .preset-btn:hover:not(:disabled) {
            background: linear-gradient(135deg, rgba(251, 191, 36, 0.2) 0%, rgba(245, 158, 11, 0.15) 100%);
            border-color: #fbbf24;
            box-shadow: 0 4px 12px rgba(245, 158, 11, 0.3);
        }

        .preset-btn:focus-visible {
            outline: 2px solid #f59e0b;
            outline-offset: 2px;
        }

        .preset-btn.selected {
            background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
            border-color: #d97706;
            color: white;
            box-shadow: 0 6px 16px rgba(245, 158, 11, 0.5);
            transform: translateY(-2px);
            font-weight: 800;
        }

        .preset-btn.selected:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 20px rgba(245, 158, 11, 0.6);
        }

        .preset-btn:disabled {
            opacity: 0.5;
            cursor: not-allowed;
        }

        /* Keep time slider length stable despite duplicated earlier rules */
        .slider-container #time-slider {
            width: 100% !important;
            max-width: 100% !important;
            min-width: 0 !important;
            display: block !important;
            margin: 0 !important;
            padding: 0 !important;
            box-sizing: border-box !important;
        }

        .slider-container #time-slider::-webkit-slider-runnable-track {
            width: 100% !important;
        }

        .slider-container #time-slider::-moz-range-track {
            width: 100% !important;
        }

        /* Setup UI fixes: header consistency and time slider overlap */
        .question-count-container .question-count-header {
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }

        .question-count-container .question-count-icon-wrapper {
            padding: 0.75rem;
            border-radius: 0.75rem;
        }

        .question-count-container .question-count-header h3 {
            margin: 0;
            line-height: 1.25;
        }

        .time-limit-container .time-custom-slider-wrapper {
            margin-top: 1rem;
            margin-bottom: 1.5rem;
        }

        .time-limit-container .time-custom-slider-label {
            width: 100%;
            margin-bottom: 0.75rem;
        }

        .time-limit-container .time-slider {
            display: block;
            width: 100%;
            height: 8px;
            margin: 0;
        }

        .time-limit-container .time-slider::-webkit-slider-runnable-track {
            height: 8px;
            border-radius: 9999px;
        }

        .time-limit-container .time-slider::-moz-range-track {
            height: 8px;
            border-radius: 9999px;
        }

        .time-limit-container .time-slider::-webkit-slider-thumb {
            width: 24px;
            height: 24px;
            margin-top: -8px;
        }

        .time-limit-container .time-slider::-moz-range-thumb {
            width: 24px;
            height: 24px;
        }

        .time-limit-container .time-custom-slider-labels {
            margin-top: 0.75rem;
        }

        .time-limit-container .time-status-message {
            margin-top: 0.75rem;
            position: relative;
            z-index: 1;
        }

        @media screen and (max-width: 639px) {
            .question-count-container .question-count-badge {
                font-size: 0.8125rem;
                padding: 0.4rem 0.75rem;
            }

            .time-limit-container .time-custom-slider-wrapper {
                margin-bottom: 1.25rem;
            }
        }