/**
 * All Tests Modern Professional CSS
 * Styled to match test-performance and performance-report design patterns
 */

/* ========================================================================= =
   CSS Variables & Design Tokens
   ========================================================================== */
:root {
    /* Primary Colors - Matching performance dashboard */
    --primary-pink: #dc267f;
    --primary-yellow: #ffc107;
    --primary-red: #e74c3c;
    --primary-dark-red: #c0392b;
    
    /* Neutrals - Modern grayscale */
    --white: #ffffff;
    --gray-50: #f8f9fa;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-400: #94a3b8;
    --gray-500: #64748b;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1e293b;
    --gray-900: #0f172a;
    --border-color: #e9ecef;
    --text-primary: #333;
    --text-secondary: #666;
    --text-muted: #999;
    
    /* Status Colors */
    --success-500: #28a745;
    --success-600: #10b981;
    --success-50: #ecfdf5;
    --warning-500: #fd7e14;
    --warning-600: #f59e0b;
    --warning-50: #fffbeb;
    --error-500: #dc3545;
    --error-600: #dc2626;
    --error-50: #fef2f2;
    
    /* Spacing - Professional scale */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-2xl: 48px;
    --spacing-3xl: 60px;
    
    /* Border Radius - Modern rounded corners */
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 15px;
    --radius-2xl: 25px;
    
    /* Shadows - Professional depth */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.05);
    --shadow-lg: 0 8px 16px rgba(220, 38, 127, 0.15);
    --shadow-xl: 0 8px 25px rgba(220, 38, 127, 0.15);
    --shadow-performance: 0 8px 16px rgba(231, 76, 60, 0.3);
    
    /* Typography - Clean and readable */
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    
    /* Transitions - Smooth interactions */
    --transition-base: all 0.3s ease;
    --transition-bounce: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ========================================================================= =
   Base & Container Styles - Enhanced
   ========================================================================== */
* {
    box-sizing: border-box;
}

/* Modern scrollbar styling */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--gray-100);
    border-radius: var(--radius-sm);
}

::-webkit-scrollbar-thumb {
    background: var(--primary-pink);
    border-radius: var(--radius-sm);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-red);
}

/* ========================================================================= =
   Base & Container Styles
   ========================================================================== */
* {
    box-sizing: border-box;
}

#all-tests-container {}

/* ========================================================================= =
   View Management
   ========================================================================== */
.test-view {
    display: none;
    opacity: 0;
    transition: opacity 0.5s ease-in-out;
    transform: translateY(20px);
	margin-top: -20px;
}

.test-view.active {
    display: block;
    opacity: 1;
    transform: translateY(0);
    animation: fadeIn 0.5s ease-in-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ========================================================================= =
   Navigation & Controls
   ========================================================================== */
.back-button-container {
    margin-bottom: var(--spacing-xl);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.btn-back {
    background: linear-gradient(45deg, var(--primary-red), var(--primary-dark-red));
    color: var(--white);
    border: none;
    padding: 15px 25px;
    border-radius: var(--radius-xl);
    font-weight: var(--font-weight-semibold);
    font-size: 16px;
    cursor: pointer;
    transition: var(--transition-bounce);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    text-transform: uppercase;
    letter-spacing: 1px;
    box-shadow: var(--shadow-performance);
    overflow: hidden;
    position: relative;
}

.btn-back:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
    box-shadow: 0 12px 20px rgba(231, 76, 60, 0.4);
}

.btn-back::before {
    content: '←';
    font-size: 18px;
    font-weight: bold;
}

/* Page Header Styling */
.page-header {
    text-align: center;
	margin-top: 20px;
}

.page-header h1 {
    color: var(--text-primary);
    font-weight: var(--font-weight-bold);
    margin: 0 0 var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
}

.page-header h1 svg {
    color: var(--primary-pink);
    width: 32px;
    height: 32px;
    flex-shrink: 0;
}

.page-subtitle {
    color: var(--text-secondary);
    font-size: 18px;
    margin: 0;
    font-weight: var(--font-weight-normal);
}

/* Filter Section */
.filter-section {
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-lg);
    background: var(--gray-50);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-md);
}

/* Search Section */
.search-section {
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-lg);
    background: var(--gray-50);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-md);
}

.filter-section h3 {
    margin: 0 0 var(--spacing-lg) 0;
    font-size: 20px;
    font-weight: var(--font-weight-semibold);
    color: var(--text-primary);
}

.filter-controls {
    display: flex;
    gap: var(--spacing-lg);
    align-items: flex-end;
    flex-wrap: wrap;
}

.filter-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    min-width: 32%;
}

.filter-group label {
    font-size: 14px;
    font-weight: var(--font-weight-semibold);
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
	display: none;
}

#test-filter {
    width: 100%;
    padding: 12px 16px;
    border-radius: var(--radius-md);
    font-size: 14px;
    color: var(--text-primary);
    background: var(--white);
    transition: var(--transition-base);
    font-family: var(--font-family);
}

#test-filter:focus {
    outline: none;
    border-color: var(--primary-pink);
    box-shadow: 0 0 0 3px rgba(220, 38, 127, 0.1);
}

#test-filter:disabled {
    background: var(--gray-100);
    color: var(--text-muted);
    cursor: not-allowed;
}

/* Search Input */
#test-search {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid #e5e7eb;
    border-radius: var(--radius-md);
    font-size: 14px;
    color: var(--text-primary);
    background: var(--white);
    transition: var(--transition-base);
    font-family: var(--font-family);
    position: relative;
}

#test-search:focus {
    outline: none;
    border-color: var(--primary-pink);
    box-shadow: 0 0 0 3px rgba(220, 38, 127, 0.1);
}

#test-search::placeholder {
    color: var(--text-muted);
    font-style: italic;
}

.search-group {
    position: relative;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    min-width: 32%;
}

.search-group label {
    font-size: 14px;
    font-weight: var(--font-weight-semibold);
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
	display: none;
}
.search-icon {
    position: absolute;
    right: var(--spacing-md);
    top: 12px;
    color: var(--text-muted);
    font-size: 16px;
    pointer-events: none;
    display: inline-block;
}

.clear-search {
    position: absolute;
    right: var(--spacing-md);
    top: 39px;
    background: none;
    border: none;
    color: var(--gray-400);
    cursor: pointer;
    padding: var(--spacing-xs);
    border-radius: var(--radius-sm);
    transition: all 0.2s ease;
    font-size: 18px;
    line-height: 1;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.clear-search:hover {
    color: var(--gray-600);
    background: var(--gray-100);
}

/* ========================================================================= =
   Test Cards & Grid - Modern Design
   ========================================================================== */
.tests-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

/* Empty State */
.no-tests-message {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 300px;
    margin-top: var(--spacing-lg);
}

.empty-state {
    text-align: center;
    padding: var(--spacing-3xl);
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
    max-width: 400px;
    width: 100%;
}

.empty-icon {
    font-size: 48px;
    margin-bottom: var(--spacing-lg);
    opacity: 0.6;
    color: var(--text-muted);
}

.empty-state h3 {
    margin: 0 0 var(--spacing-md) 0;
    font-size: 24px;
    font-weight: var(--font-weight-bold);
    color: var(--text-primary);
}

.empty-state p {
    margin: 0 0 var(--spacing-lg) 0;
    color: var(--text-secondary);
    font-size: 16px;
    line-height: 1.5;
}

.empty-actions {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
    margin-top: var(--spacing-md);
}

/* ========================================================================= =
   Loading States - Modern Design
   ========================================================================== */
.loading {
    text-align: center;
    padding: var(--spacing-3xl) var(--spacing-lg);
    color: var(--text-secondary);
    font-size: 16px;
}

.loading-container {
    text-align: center;
    padding: var(--spacing-3xl) var(--spacing-lg);
}

.loading-spinner {
    width: 50px;
    height: 50px;
    border: 4px solid var(--gray-200);
    border-top: 4px solid var(--primary-pink);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto var(--spacing-lg);
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.loading-container p {
    color: var(--text-secondary);
    font-size: 16px;
    margin: 0;
}

/* Error States */
.error-container {
    text-align: center;
    padding: var(--spacing-3xl) var(--spacing-lg);
}

.test-error {
    text-align: center;
    padding: var(--spacing-2xl) var(--spacing-lg);
    border-radius: var(--radius-md);
    background: var(--error-50);
    border: 1px solid var(--error-500);
}

.error-icon {
    color: var(--error-500);
    margin: var(--spacing-lg) auto;
    width: 50px;
    height: 50px;
    font-size: 48px;
}

.error-container h3,
.test-error h3 {
    color: var(--text-primary);
    margin: var(--spacing-lg) 0 var(--spacing-sm);
    font-size: 24px;
    font-weight: var(--font-weight-semibold);
}

.error-container p,
.test-error p {
    color: var(--text-secondary);
    margin: 0 0 var(--spacing-lg);
    font-size: 16px;
}

.test-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    padding: var(--spacing-lg);
    transition: var(--transition-bounce);
    position: relative;
    overflow: hidden;
    border: 1px solid var(--border-color);
    cursor: pointer;
}

.test-card::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-pink), var(--primary-yellow));
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.test-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-pink);
}

.test-card.completed {
	border: 2px solid var(--success-500);
    background: linear-gradient(135deg, var(--white) 0%, #cfeccc 50%) !important;
}

.test-card.completed::before {
    background: var(--success-500);
}

.completed-badge {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    background: var(--success-500);
    color: var(--white);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-xl);
    font-size: 12px;
    font-weight: var(--font-weight-semibold);
    box-shadow: var(--shadow-sm);
}

/* Highlighted Test Card (URL Parameter) */
.test-card.highlighted-test {
    border: 3px solid var(--primary-pink) !important;
    background: linear-gradient(135deg, var(--white) 0%, rgba(220, 38, 127, 0.05) 100%) !important;
    box-shadow: 0 12px 24px rgba(220, 38, 127, 0.2) !important;
    transform: translateY(-4px) !important;
}

.test-card.highlighted-test::before {
    height: 6px;
    background: var(--primary-pink) !important;
}

/* Highlight flash animation */
@keyframes highlightFlash {
    0% { 
        box-shadow: 0 0 0 0 rgba(220, 38, 127, 0.7);
        transform: translateY(-4px);
    }
    50% { 
        box-shadow: 0 0 0 20px rgba(220, 38, 127, 0);
        transform: translateY(-6px);
    }
    100% { 
        box-shadow: 0 0 0 0 rgba(220, 38, 127, 0);
        transform: translateY(-4px);
    }
}

/* Card Content */
.test-card h3 {
    font-size: 20px;
    font-weight: var(--font-weight-bold);
    color: var(--text-primary);
    margin: 0 0 var(--spacing-sm) 0;
    line-height: 1.4;
}

.test-card p {
    color: var(--text-secondary);
    margin: 0 0 var(--spacing-md) 0;
    font-size: 14px;
    line-height: 1.5;
}

/* Teacher Info & Verified Badge */
.test-card .teacher-info {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    margin-bottom: var(--spacing-md);
    padding: var(--spacing-sm) 0;
    border-top: 1px solid var(--gray-200);
    border-bottom: 1px solid var(--gray-200);
}

.test-card .teacher-name {
    font-weight: var(--font-weight-semibold);
    color: var(--text-primary);
    margin-right: var(--spacing-sm);
    font-size: 16px;
	margin-top:-10px;
}

.verified-badge { position: relative; top: 4px;}



.test-meta {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.teacher-name {
    display: flex;
    align-items: center;
    gap: 4px;
    font-weight: 500;
}

.verified-badge {
    display: inline-flex;
    align-items: center;
}

/* Container for question count and duration */
.question-duration-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
	margin: 5px 0px;
}

.question-count {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    color: #374151;
}

.question-count::before {
    content: '\f059';
    font-family: 'Font Awesome 5 Free';
    font-weight: 900;
    font-size: 16px;
    color: #374151;
    margin-right: 6px;
}

.duration {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    color: #374151;
}

.duration::before {
    content: '\f017';
    font-family: 'Font Awesome 5 Free';
    font-weight: 900;
    font-size: 16px;
    color: #374151;
    margin-right: 6px;
}

.btn.btn-secondary { background: none !important; border-top: 1px solid #ccc!important; border-bottom: 1px solid #ccc !important; color: #FF0000 !important; border-radius: 0px !important; border-left: 0px; border-right: 0px;}


.test-details {
            max-width: 600px;
        }

        .grade-subject-row {
            display: flex;
            align-items: center;
            gap: 10px;
            margin: 10px 0;
            flex-wrap: wrap;
        }

        .grades span { 
            background: #b6fbff; 
            padding: 8px 15px; 
            font-size: 13px; 
            border-radius: 30px;
            display: inline-block;
        }

        .subject span { 
            background: #e8f5e8; 
            padding: 8px 15px; 
            font-size: 13px; 
            border-radius: 30px; 
            color: #2d5a2d;
            display: inline-block;
        }

        .schedule { 
            font-size: 14px; 
            color: #FF0000; 
            margin: 8px 0;
        }
.test-actions {
    display: flex;
    gap: 8px;
	margin: 20px 0px 0px 0px;
}

.test-actions .btn {
    flex: 1;
}

/* Published Date Styling */
.published-date {
    font-size: 12px;
    color: var(--gray-500);
    margin-top: 4px;
    font-style: italic;
}

/* Featured Tests Section */
.featured-tests-section {
    margin-bottom: var(--spacing-2xl);
}

.regular-tests-section {
    margin-bottom: var(--spacing-xl);
}

.section-title {
    font-size: 24px;
    font-weight: var(--font-weight-bold);
    color: var(--text-primary);
    margin: 0 0 var(--spacing-lg) 0;
    padding: var(--spacing-md) 0;
    border-bottom: 2px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.featured-grid .test-card {
    background: linear-gradient(145deg, #fff9e6, #ffffff);
    box-shadow: var(--shadow-lg);
    position: relative;
}

/*.featured-grid .test-card::before {
    content: '⭐';
    position: absolute;
    top: -8px;
    right: -8px !important;
    background: var(--primary-yellow);
    color: #000;
    border-radius: 50%;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    font-weight: bold;
    box-shadow: var(--shadow-md);
}*/

/* ========================================================================= =
   Buttons & Interactive Elements - Modern Design
   ========================================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: 8px var(--spacing-lg);
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    font-size: 12px !important;
    font-weight: var(--font-weight-semibold);
    font-family: var(--font-family);
    text-decoration: none;
    transition: var(--transition-bounce);
    position: relative;
    overflow: hidden;
    text-transform: uppercase;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s;
}

.btn:hover::before {
    left: 100%;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
}

.btn:disabled::before {
    display: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-pink), var(--primary-red));
    color: var(--white);
    box-shadow: var(--shadow-md);
	padding: 15px 20px;
}

.btn-primary:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: linear-gradient(135deg, var(--gray-600), var(--gray-700));
    color: var(--white);
    box-shadow: var(--shadow-md);
}

.btn-secondary:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-success {
    background: linear-gradient(135deg, var(--success-500), var(--success-600));
    color: var(--white);
    box-shadow: var(--shadow-md);
}

.btn-success:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-danger {
    background: linear-gradient(135deg, var(--error-500), var(--error-600));
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-danger:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-warning {
    background: linear-gradient(135deg, var(--warning-500), var(--warning-600));
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-warning:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* ========================================================================= =
   Question & Answer Styles
   ========================================================================== */
.question-container {
    background: white;
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    margin: var(--spacing-lg) 0;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--gray-200);
}

.question-text h4 {
    margin: 0 0 var(--spacing-lg) 0;
    font-size: 20px;
    font-weight: var(--font-weight-semibold);
    color: var(--gray-900);
    line-height: 1.5;
}

/* Image Question & Answer Styles */
.question-image,
.question-media {
    margin: var(--spacing-lg) 0;
    text-align: center;
}

.question-img,
.question-media-element {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
}

.answer-img,
.answer-media {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-sm);
    margin: var(--spacing-sm) 0;
    box-shadow: var(--shadow-xs);
}

/* Audio and Video specific styles */
.question-media-element[controls],
.answer-media[controls] {
    width: 100%;
    max-width: 500px;
    background: var(--white);
    border-radius: var(--radius-md);
    outline: none;
}

.answer-media[controls] {
    max-width: 300px;
}

/* Video specific styles */
video.question-media-element {
    max-height: 400px;
}

video.answer-media {
    max-height: 200px;
}

/* Audio specific styles */
audio.question-media-element,
audio.answer-media {
    height: 40px;
    min-height: 40px;
}

/* Media controls styling */
.question-media-element[controls]::-webkit-media-controls-panel,
.answer-media[controls]::-webkit-media-controls-panel {
    background-color: var(--white);
}

.question-media-element[controls]::-webkit-media-controls-play-button,
.answer-media[controls]::-webkit-media-controls-play-button {
    background-color: var(--primary-pink);
    border-radius: 50%;
}

/* Responsive media sizing */
@media (max-width: 768px) {
    .question-media-element {
        max-width: 100%;
    }
    
    .answer-media {
        max-width: 180px;
    }
    
    video.question-media-element {
        max-height: 300px;
    }
    
    video.answer-media {
        max-height: 120px;
    }
}

/* Answer Options with Images */
.answer-option {
    text-align: center;
}

.answer-option .answer-label {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
}

.answer-option input[type="radio"] {
    margin: var(--spacing-sm) 0;
}

/* Multiple Choice Grid Layout */
.multiple-choice {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
    margin: var(--spacing-lg) 0;
}

@media (max-width: 768px) {
  .multiple-choice {
    grid-template-columns: 1fr;
  }
}

/* Answer Option Styles */
.answer-option {
    position: relative;
    background: white;
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-md);
    transition: all 0.3s ease;
    cursor: pointer;
    overflow: hidden;
    min-height: 50px;
    display: flex;
    align-items: center;
}

.answer-option:hover {
    border-color: var(--primary-600);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.answer-option:active {
    transform: translateY(0);
}

/* Hide radio button but keep it accessible */
.answer-option input[type="radio"] {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

/* Label Styles */
.answer-option .answer-label {
    display: block;
    padding: var(--spacing-lg);
    width: 100%;
    height: 100%;
    cursor: pointer;
    text-align: center;
}

@media (max-width: 768px) {
.answer-option .answer-label {
    padding: 0px;
}
}

/* Image Answer Styles */
.answer-option .answer-img,
.answer-option .answer-media {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-sm);
    margin-bottom: var(--spacing-sm);
}

/* Selected State */
.answer-option input[type="radio"]:checked + .answer-label {
    background: var(--primary-50);
    color: var(--primary-700);
}

.answer-option input[type="radio"]:checked + .answer-label .answer-img,
.answer-option input[type="radio"]:checked + .answer-label .answer-media {
    box-shadow: 0 0 0 3px var(--primary-600);
}

.answer-option:has(input:checked),
.answer-option.selected {
    border-color: var(--primary-600);
    background: var(--primary-50);
    box-shadow: var(--shadow-md);
    transform: translateY(-1px);
}

/* Focus State */
.answer-option:has(input:focus-visible) {
    outline: 2px solid var(--primary-600);
    outline-offset: 2px;
}

/* Text Input Style */
.text-answer {
    margin: var(--spacing-lg) 0;
}

.answer-input {
    width: 100%;
    padding: var(--spacing-md);
    font-size: 16px;
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-md);
    transition: all 0.3s ease;
}

.answer-input:focus {
    outline: none;
    border-color: var(--primary-600);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

/* ========================================================================= =
   Progress & Timer - Modern Design
   ========================================================================== */
.test-progress {
    margin: var(--spacing-lg) 0;
    background: var(--white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
}

.progress-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
}

.progress-text {
    font-size: 14px;
    font-weight: var(--font-weight-semibold);
    color: var(--text-primary);
	margin-bottom: 10px;
}

.progress-bar {
    height: 10px;
    background: var(--gray-200);
    border-radius: var(--radius-md);
    overflow: hidden;
    position: relative;
    box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.1);
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-pink), var(--primary-yellow));
    transition: width 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    border-radius: var(--radius-md);
    position: relative;
    box-shadow: 0 1px 3px rgba(220, 38, 127, 0.3);
}

.progress-fill::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
    background-image: linear-gradient(45deg, 
        transparent 25%, 
        rgba(255,255,255,0.15) 25%, 
        rgba(255,255,255,0.15) 50%, 
        transparent 50%, 
        transparent 75%, 
        rgba(255,255,255,0.15) 75%);
    background-size: 20px 20px;
    animation: progress-stripe 1s linear infinite;
}

@keyframes progress-stripe {
    from { background-position: 0 0; }
    to { background-position: 20px 0; }
}

.test-name-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            padding: 16px;
            background: #f9fafb;
            border: 1px solid #d1d5db;
            border-radius: 12px;
            box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
            min-height: 24px;
			margin: 0px !important;
        }
        #current-test-name {
            margin: 0;
            font-size: 18px;
            font-weight: 600;
            flex: 1;
            min-width: 0; /* Allows text to truncate if needed */
        }

        .test-timer {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 16px;
            font-size: 16px;
            font-weight: 16px;
            color: #1f2937;
            background: white;
            border: 1px solid #d1d5db;
            border-radius: 12px;
           box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
            white-space: nowrap;
            flex-shrink: 0;
        }

        .test-timer::before {
            content: "⏱";
            font-size: 18px;
        }

        .time-warning {
            color: var(--error-500);
            background: var(--error-50);
            border-color: var(--error-500);
            animation: pulse 2s infinite;
        }

        .time-caution {
            color: var(--warning-600);
            background: var(--warning-50);
            border-color: var(--warning-600);
        }

        /* Mobile responsiveness */
        @media (max-width: 480px) {
            .test-name-header {
                padding: var(--spacing-sm) var(--spacing-md);
                gap: var(--spacing-sm);
            }
            
            #current-test-name {
                font-size: 16px;
            }
            
            .test-timer {
                font-size: 14px;
                padding: 6px var(--spacing-sm);
            }
            
            .test-timer::before {
                font-size: 16px;
            }
        }

        /* Extra small screens */
        @media (max-width: 320px) {
            #current-test-name {
                font-size: 14px;
            }
            
            .test-timer {
                font-size: 13px;
            }
        }

/* ========================================================================= =
   Modal System
   ========================================================================== */
.custom-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-lg);
}

.custom-modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(15, 23, 42, 0.6);
    backdrop-filter: blur(8px);
}

.custom-modal-content {
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    max-width: 500px;
    width: 100%;
    max-height: 80vh;
    overflow-y: auto;
    position: relative;
    z-index: 10001;
    animation: modalFadeIn 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid var(--gray-200);
}

.custom-modal-header {
    padding: var(--spacing-xl) var(--spacing-xl) 0 var(--spacing-xl);
    border-bottom: 1px solid var(--gray-200);
}

.custom-modal-header h4 {
    margin: 0 0 var(--spacing-lg) 0;
    color: var(--gray-900);
    font-weight: var(--font-weight-semibold);
    font-size: 20px;
}

.custom-modal-body {
    padding: var(--spacing-xl);
	font-size: 16px;
}

.custom-modal-body p {
    margin: 0 0 var(--spacing-md) 0;
}

.custom-modal-body p:last-child {
    margin-bottom: 0;
}

.custom-modal-footer {
    padding: 0 var(--spacing-xl) var(--spacing-xl) var(--spacing-xl);
    display: flex;
    gap: var(--spacing-md);
    justify-content: flex-end;
}

/* ========================================================================= =
   Alert & Message System - Modern Design
   ========================================================================== */
#message-container {
    position: fixed;
    top: var(--spacing-lg);
    right: var(--spacing-lg);
    z-index: 10000;
    max-width: 350px;
}

.alert {
    padding: var(--spacing-md) var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    animation: slideIn 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    font-weight: var(--font-weight-medium);
    border: 1px solid;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.alert-success { 
    background: var(--success-50); 
    color: var(--success-600);
    border-color: var(--success-500);
}

.alert-danger { 
    background: var(--error-50); 
    color: var(--error-600);
    border-color: var(--error-500);
}

.alert-warning { 
    background: var(--warning-50); 
    color: var(--warning-600);
    border-color: var(--warning-500);
}

.alert-info { 
    background: var(--gray-50); 
    color: var(--text-primary);
    border-color: var(--primary-pink);
}

/* ========================================================================= =
   Animations
   ========================================================================== */
@keyframes modalFadeIn {
    from {
        opacity: 0;
        transform: scale(0.95) translateY(-20px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

@keyframes slideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes pulse {
    0% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
    100% {
        opacity: 1;
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ========================================================================= =
   Dark Mode Support
   ========================================================================== */
@media (prefers-color-scheme: dark) {
    :root {
        --gray-50: #0f172a;
        --gray-100: #1e293b;
        --gray-200: #334155;
        --gray-300: #475569;
        --gray-400: #64748b;
        --gray-500: #94a3b8;
        --gray-600: #cbd5e1;
        --gray-700: #e2e8f0;
        --gray-800: #f1f5f9;
        --gray-900: #f8fafc;
    }
    
    body {
        background: linear-gradient(135deg, var(--gray-900) 0%, var(--gray-800) 100%);
    }
}

/* ========================================================================= =
   Media Queries
   ========================================================================== */
/* Mobile Devices */
@media (max-width: 768px) {
    #all-tests-container {
        
        border-radius: 0;
    }
    
    .tests-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .test-card {
        padding: var(--spacing-md);
    }
    
    .custom-modal {
        padding: var(--spacing-md);
    }
    
    .custom-modal-content {
        width: 100%;
        max-height: 90vh;
    }
    
    .verified-teacher-badge {
        padding: 1px var(--spacing-sm);
        font-size: 9px;
        margin-left: var(--spacing-xs);
    }
    
    /* Mobile filter controls */
    .filter-controls {
        flex-direction: column;
        align-items: stretch;
        gap: var(--spacing-md);
    }
    
    .filter-group,
    .search-group {
        min-width: unset;
        width: 100%;
    }
    
    #test-filter,
    #test-search {
        max-width: none;
        width: 100%;
    }
    
    .btn {
        padding: var(--spacing-md);
        font-size: 13px;
    }
    
    .question-container {
        padding: var(--spacing-lg);
    }
    
    .answer-option {
        padding: var(--spacing-md);
    }
	
    
    .custom-modal-header,
    .custom-modal-body,
    .custom-modal-footer {
        padding-left: var(--spacing-lg);
        padding-right: var(--spacing-lg);
    }
    
    #message-container {
        top: var(--spacing-md);
        right: var(--spacing-md);
        left: var(--spacing-md);
        max-width: none;
    }
}

/* Tablet Devices */
@media (min-width: 769px) and (max-width: 1024px) {
    .tests-grid {
        grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    }
    
    #all-tests-container {
        
    }
}

/* Large Screens */
@media (min-width: 1200px) {
    .tests-grid {
        grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    }
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Focus indicators */
.btn:focus-visible,
.answer-option:focus-visible,
#test-filter:focus-visible,
.answer-input:focus-visible {
    outline: 2px solid var(--primary-600);
    outline-offset: 2px;
}

/* Answer Feedback Styles */
.answer-feedback {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 20px;
    border-radius: 12px;
    margin-top: 20px;
    animation: slideInUp 0.3s ease-out;
}

.answer-feedback.correct {
    background: linear-gradient(135deg, #d4edda, #c3e6cb);
    border: 2px solid #28a745;
    color: #155724;
}

.answer-feedback.incorrect {
    background: linear-gradient(135deg, #f8d7da, #f1b0b7);
    border: 2px solid #dc3545;
    color: #721c24;
}

.feedback-icon {
    flex-shrink: 0;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: bounceIn 0.6s ease-out;
}

.answer-feedback.correct .feedback-icon {
    background: #28a745;
}

.answer-feedback.incorrect .feedback-icon {
    background: #dc3545;
}

.feedback-icon svg {
    width: 28px;
    height: 28px;
    fill: white;
    stroke: white;
    stroke-width: 2;
}

.feedback-text h4 {
    margin: 0 0 5px 0;
    font-size: 1.3rem;
    font-weight: 700;
}

.feedback-text p {
    margin: 0;
    font-size: 1rem;
}

/* Confetti Animation */
.confetti-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 9999;
    overflow: hidden;
}

.confetti-piece {
    position: absolute;
    width: 10px;
    height: 10px;
    background: #ea4435;
    animation: confetti-fall linear infinite;
    opacity: 0.9;
}

@keyframes confetti-fall {
    0% {
        transform: translateY(-100vh) rotateZ(0deg);
        opacity: 1;
    }
    100% {
        transform: translateY(100vh) rotateZ(720deg);
        opacity: 0;
    }
}

@keyframes slideInUp {
    from {
        transform: translateY(30px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

@keyframes bounceIn {
    0% {
        transform: scale(0.3);
        opacity: 0;
    }
    50% {
        transform: scale(1.05);
    }
    70% {
        transform: scale(0.9);
    }
    100% {
        transform: scale(1);
        opacity: 1;
    }
}

/* Timer Warning States */
.test-timer .time-warning {
    color: #dc3545;
    font-weight: bold;
    animation: pulse 1s infinite;
}

.test-timer .time-caution {
    color: #fd7e14;
    font-weight: bold;
}