/* ===== CSS VARIABLES ===== */
:root {
    /* Primary Colors */
    --primary-color: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --secondary-color: #f59e0b;
    --secondary-dark: #d97706;
    --secondary-light: #fbbf24;
    
    /* Background Colors */
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    --bg-dark: #1e293b;
    --bg-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    
    /* Text Colors */
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-light: #94a3b8;
    --text-white: #ffffff;
    
    /* Status Colors */
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --error-color: #ef4444;
    --info-color: #3b82f6;
    
    /* Language Colors */
    --cpp-color: #00599c;
    --java-color: #ed8b00;
    --python-color: #3776ab;
    --javascript-color: #f7df1e;
    --html-color: #e34f26;
    
    /* Difficulty Colors */
    --beginner-color: #10b981;
    --intermediate-color: #f59e0b;
    --advanced-color: #ef4444;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
}

/* ===== GLOBAL RESET ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--bg-secondary);
    overflow-x: hidden;
}


.loading-text {
    color: var(--text-primary); 
    font-size: 1.125rem;
    font-weight: 500;
    animation: pulse 2s ease-in-out infinite;
    letter-spacing: 0.5px;
}

/* ===== QUIZ HEADER ===== */
.quiz-header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    padding: var(--spacing-xl) var(--spacing-xl) var(--spacing-2xl); /* تم تقليل المساحة العلوية وزيادة المساحة السفلية */
    text-align: center;
    position: relative;
    overflow: hidden;
    margin-bottom: var(--spacing-lg); 
}

.quiz-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="50" cy="50" r="1" fill="%23ffffff" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>') repeat;
    opacity: 0.15;
}

.quiz-header-content {
    position: relative;
    z-index: 2;
    max-width: 900px;
    margin: 0 auto;
    transform: translateY(30px);
}

.quiz-header h1 {
    font-size: 3.25rem;
    font-weight: 700;
    color: var(--text-white);
    margin-bottom: var(--spacing-md);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
    animation: fadeInUp 0.8s ease;
}

.quiz-header p {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.95);
    margin-bottom: var(--spacing-xl);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    animation: fadeInUp 0.8s ease 0.2s both;
}

.quiz-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
    animation: fadeInUp 0.8s ease 0.4s both;
}

.stat {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-lg);
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all var(--transition-normal);
}

.stat:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.stat i {
    font-size: 1.5rem;
    color: var(--text-white); 
}

.stat span {
    color: var(--text-white);
    font-weight: 500;
    font-size: 0.95rem;
}

/* ===== MAIN CONTAINER ===== */
.main-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--spacing-2xl) var(--spacing-xl);
    display: grid;
    grid-template-columns: 320px 1fr;
    gap: var(--spacing-2xl);
    align-items: start;
}

/* ===== FILTER SECTION ===== */
.filter-section {
    background: var(--bg-primary);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-lg);
    position: sticky;
    top: var(--spacing-xl);
    height: fit-content;
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.filter-section:hover {
    box-shadow: var(--shadow-xl);
}

.section-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.section-title i {
    color: var(--primary-color);
}

/* Search Container */
.search-container {
    position: relative;
    margin-bottom: var(--spacing-xl);
}

.search-container input {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-lg) var(--spacing-md) 3rem;
    border: 2px solid var(--bg-tertiary);
    border-radius: var(--radius-lg);
    font-size: 1rem;
    transition: all var(--transition-normal);
    background: var(--bg-secondary);
}

.search-container input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.search-button {
    position: absolute;
    left: var(--spacing-md);
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1.125rem;
    cursor: pointer;
    transition: color var(--transition-fast);
}

.search-button:hover {
    color: var(--primary-color);
}

/* Filter Groups */
.filter-groups {
    margin-bottom: var(--spacing-xl);
}

.filter-group {
    margin-bottom: var(--spacing-xl);
}

.filter-group h3 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.filter-group h3 i {
    color: var(--primary-color);
    font-size: 1rem;
}

.filter-options {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.filter-option {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    transition: background-color var(--transition-fast), transform var(--transition-fast);
    position: relative;
}

.filter-option:hover {
    background: var(--bg-tertiary);
    transform: translateX(4px);
}

.filter-option input[type="checkbox"] {
    position: absolute;
    opacity: 0;
    cursor: pointer;
}

.checkmark {
    width: 20px;
    height: 20px;
    border: 2px solid var(--text-light);
    border-radius: var(--radius-sm);
    position: relative;
    transition: all var(--transition-fast);
    flex-shrink: 0;
}

.filter-option input:checked + .checkmark {
    background: var(--primary-color);
    border-color: var(--primary-color);
}

.filter-option input:checked + .checkmark::after {
    content: '✓';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: white;
    font-size: 12px;
    font-weight: bold;
}

.option-text {
    font-size: 0.95rem;
    color: var(--text-secondary);
    transition: color var(--transition-fast);
}

.filter-option:hover .option-text {
    color: var(--text-primary);
}

/* Reset Filters Button */
.reset-filters {
    width: 100%;
    padding: var(--spacing-md);
    background: linear-gradient(135deg, var(--secondary-color), var(--secondary-dark));
    color: var(--text-white);
    border: none;
    border-radius: var(--radius-lg);
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-normal);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
}

.reset-filters:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* ===== QUIZ CARDS SECTION ===== */
.quiz-cards-section {
    background: var(--bg-primary);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-lg);
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-xl);
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

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

.sort-container {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.sort-container label {
    font-weight: 500;
    color: var(--text-secondary);
}

.sort-container select {
    padding: var(--spacing-sm) var(--spacing-md);
    border: 2px solid var(--bg-tertiary);
    border-radius: var(--radius-md);
    background: var(--bg-secondary);
    color: var(--text-primary);
    font-size: 0.95rem;
    cursor: pointer;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.sort-container select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.results-count {
    color: var(--text-secondary);
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

/* Quiz Cards Container */
.quiz-cards-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: var(--spacing-xl);
}

/* Quiz Card */
.quiz-card {
    background: var(--bg-primary);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
    overflow: hidden;
    border: 1px solid var(--bg-tertiary);
    display: flex;
    flex-direction: column;
    position: relative;
    will-change: transform, box-shadow;
}

.quiz-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-light);
}

.quiz-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
}

/* Quiz Card Header */
.quiz-card-header {
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--bg-tertiary);
}

.quiz-badges {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    flex-wrap: wrap;
}

.badge {
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-md);
    font-size: 0.75rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Language Badges */
.language-cpp {
    background: rgba(0, 89, 156, 0.1);
    color: var(--cpp-color);
}

.language-java {
    background: rgba(237, 139, 0, 0.1);
    color: var(--java-color);
}

.language-python {
    background: rgba(55, 118, 171, 0.1);
    color: var(--python-color);
}

.language-javascript {
    background: rgba(247, 223, 30, 0.1);
    color: #b8860b;
}

.language-html {
    background: rgba(227, 79, 38, 0.1);
    color: var(--html-color);
}

/* Difficulty Badges */
.difficulty-beginner {
    background: rgba(16, 185, 129, 0.1);
    color: var(--beginner-color);
}

.difficulty-intermediate {
    background: rgba(245, 158, 11, 0.1);
    color: var(--intermediate-color);
}

.difficulty-advanced {
    background: rgba(239, 68, 68, 0.1);
    color: var(--advanced-color);
}

.quiz-card-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    line-height: 1.4;
}

/* Quiz Rating */
.quiz-rating {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.stars {
    display: flex;
    gap: 2px;
}

.stars i {
    color: var(--secondary-color);
    font-size: 0.9rem;
}

.stars .far {
    color: var(--text-light);
}

.rating-text {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* Quiz Card Content */
.quiz-card-content {
    padding: var(--spacing-lg);
    flex: 1;
    display: flex;
    flex-direction: column;
}

.quiz-card-description {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: var(--spacing-md);
    flex: 1;
}

/* Quiz Tags */
.quiz-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-md);
}

.quiz-tag {
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 500;
    transition: all var(--transition-fast);
}

.quiz-tag:hover {
    background: var(--primary-light);
    color: var(--text-white);
    transform: translateY(-2px);
}

/* Quiz Progress */
.quiz-progress {
    width: 100%;
    height: 4px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm);
    margin-bottom: var(--spacing-md);
    overflow: hidden;
}

.quiz-progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    border-radius: var(--radius-sm);
    transition: width var(--transition-slow);
}

/* Quiz Meta */
.quiz-meta {
    display: flex;
    justify-content: space-between;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.meta-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.meta-item i {
    color: var(--primary-color);
    font-size: 0.9rem;
}

/* Quiz Card Footer */
.quiz-card-footer {
    padding: var(--spacing-lg);
    border-top: 1px solid var(--bg-tertiary);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-md);
}

.start-quiz-btn {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: var(--text-white);
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-lg);
    text-decoration: none;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    transition: all var(--transition-normal);
    flex: 1;
    justify-content: center;
    box-shadow: var(--shadow-sm);
}

.start-quiz-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    background: linear-gradient(135deg, var(--primary-dark), var(--primary-color));
}

.completion-badge {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--secondary-color);
    font-size: 0.85rem;
    font-weight: 500;
}

.completion-badge i {
    font-size: 1rem;
}

/* ===== NO RESULTS MESSAGE ===== */
.no-results-message {
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-2xl);
    text-align: center;
    background: var(--bg-secondary);
    border-radius: var(--radius-xl);
    border: 2px dashed var(--text-light);
    margin: var(--spacing-xl) 0;
}

.no-results-message i {
    font-size: 4rem;
    color: var(--text-light);
    margin-bottom: var(--spacing-lg);
}

.no-results-message h3 {
    font-size: 1.5rem;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

.no-results-message p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    max-width: 450px;
}

.no-results-message button {
    background: var(--primary-color);
    color: var(--text-white);
    padding: var(--spacing-md) var(--spacing-lg);
    border: none;
    border-radius: var(--radius-lg);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-sm);
}

.no-results-message button:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* ===== BACK TO TOP BUTTON ===== */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: var(--text-white);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-normal);
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
}

.back-to-top.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

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

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

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

@keyframes bounce {
    0%, 20%, 53%, 80%, 100% {
        transform: translateY(0);
    }
    40%, 43% {
        transform: translateY(-10px);
    }
    70% {
        transform: translateY(-5px);
    }
    90% {
        transform: translateY(-2px);
    }
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 1200px) {
    .main-container {
        grid-template-columns: 280px 1fr;
        gap: var(--spacing-lg);
        padding: var(--spacing-xl) var(--spacing-lg);
    }
    
    .quiz-cards-container {
        grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    }
    
    .quiz-header h1 {
        font-size: 2.75rem;
    }
}

@media (max-width: 992px) {
    .main-container {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }
    
    .filter-section {
        position: static;
        margin-bottom: var(--spacing-lg);
    }
    
    .quiz-header h1 {
        font-size: 2.5rem;
    }
    
    .quiz-stats {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .quiz-header {
        padding: var(--spacing-xl) var(--spacing-lg);
    }
}

@media (max-width: 768px) {
    .main-container {
        padding: var(--spacing-lg) var(--spacing-md);
    }
    
    .quiz-header {
        padding: var(--spacing-xl) var(--spacing-md);
    }
    
    .quiz-header h1 {
        font-size: 2rem;
    }
    
    .quiz-header p {
        font-size: 1rem;
    }
    
    .quiz-stats {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .section-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .header-controls {
        width: 100%;
        justify-content: space-between;
        margin-top: var(--spacing-md);
    }
    
    .quiz-cards-container {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .filter-section,
    .quiz-cards-section {
        padding: var(--spacing-lg);
    }
}

@media (max-width: 576px) {
    .quiz-header h1 {
        font-size: 1.75rem;
    }
    
    .quiz-card-footer {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .start-quiz-btn {
        width: 100%;
    }
    
    .quiz-meta {
        flex-direction: column;
        gap: var(--spacing-xs);
        align-items: flex-start;
    }
    
    .back-to-top {
        bottom: 1rem;
        right: 1rem;
        width: 45px;
        height: 45px;
    }
    
    .filter-section,
    .quiz-cards-section {
        border-radius: var(--radius-lg);
    }
}

@media (max-width: 400px) {
    .main-container {
        padding: var(--spacing-md) var(--spacing-sm);
    }
    
    .filter-section,
    .quiz-cards-section {
        padding: var(--spacing-md);
    }
    
    .quiz-card-header,
    .quiz-card-content,
    .quiz-card-footer {
        padding: var(--spacing-md);
    }
    
    .quiz-header h1 {
        font-size: 1.5rem;
    }
    
    .quiz-header p {
        font-size: 0.9rem;
    }
}

/* ===== FOCUS STYLES ===== */
*:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

button:focus,
a:focus,
input:focus,
select:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* ===== PAGINATION ===== */
.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-lg);
    margin: var(--spacing-xl) 0;
    padding: var(--spacing-md) 0;
    border-top: 1px solid var(--bg-tertiary);
}

.pagination-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: var(--text-white);
    border: none;
    border-radius: var(--radius-lg);
    padding: var(--spacing-md) var(--spacing-lg);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-sm);
}

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

.pagination-btn:disabled {
    background: var(--bg-tertiary);
    color: var(--text-light);
    cursor: not-allowed;
    opacity: 0.7;
}

.pagination-btn i {
    font-size: 0.85rem;
}

.pagination-info {
    font-size: 1rem;
    color: var(--text-secondary);
    font-weight: 500;
}

/* تعديلات للشاشات الصغيرة */
@media (max-width: 576px) {
    .pagination {
        gap: var(--spacing-md);
        flex-wrap: wrap;
    }
    
    .pagination-btn {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: 0.9rem;
    }
}

/* ===== PRINT STYLES ===== */
@media print {
    .preloader,
    .back-to-top,
    .filter-section {
        display: none !important;
    }
    
    .main-container {
        grid-template-columns: 1fr;
    }
    
    .quiz-card {
        break-inside: avoid;
        box-shadow: none;
        border: 1px solid #ccc;
    }
}