/* University Directory Styles with Arabic Support */
/* Import Arabic-friendly fonts */
@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+Arabic:wght@300;400;500;600;700&family=Cairo:wght@300;400;500;600;700&display=swap');
/* Root variables for consistent styling */
:root {
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --primary-color: #667eea;
    --secondary-color: #764ba2;
    --success-color: #28a745;
    --warning-color: #ffc107;
    --danger-color: #dc3545;
    --info-color: #17a2b8;
    --light-bg: #f8f9fa;
    --border-color: #e0e0e0;
    --text-color: #333;
    --text-muted: #666;
    --border-radius: 12px;
    --box-shadow: 0 4px 15px rgba(0,0,0,0.1);
    --transition: all 0.3s ease;
    
    /* Difficulty colors */
    --beginner-color: #4ade80;
    --intermediate-color: #fbbf24;
    --advanced-color: #f97316;
    --expert-color: #ef4444;
}
/* Base Container */
.university-directory-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 40px 20px;
    font-family: 'Cairo', 'Noto Sans Arabic', 'Segoe UI', Tahoma, Arial, sans-serif;
    color: var(--text-color);
    direction: rtl;
    text-align: right;
}
/* Directory Header */
.directory-header {
    text-align: center;
    margin-bottom: 40px;
    padding: 40px;
    background: var(--primary-gradient);
    border-radius: var(--border-radius);
    color: white;
    position: relative;
    overflow: hidden;
}
.directory-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="25" cy="25" r="1" fill="rgba(255,255,255,0.05)"/><circle cx="75" cy="75" r="1" fill="rgba(255,255,255,0.05)"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    pointer-events: none;
    opacity: 0.7;
}
.directory-title {
    font-size: 36px;
    font-weight: 700;
    margin: 0 0 15px;
    position: relative;
    z-index: 1;
    text-shadow: 0 2px 4px rgba(0,0,0,0.2);
}
.directory-subtitle {
    font-size: 18px;
    opacity: 0.9;
    margin: 0;
    position: relative;
    z-index: 1;
}
/* Search Filters */
.directory-search {
    background-color: white;
    border-radius: var(--border-radius);
    padding: 30px;
    margin-bottom: 30px;
    box-shadow: var(--box-shadow);
    border: 1px solid var(--border-color);
}
.search-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
}
.filter-group {
    flex: 1;
    min-width: 250px;
}
.filter-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--text-color);
    font-size: 16px;
}
.filter-group select {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    background-color: white;
    font-family: inherit;
    font-size: 16px;
    color: var(--text-color);
    transition: var(--transition);
    appearance: none;
    background-image: url('data:image/svg+xml;utf8,<svg fill="%23333" height="24" viewBox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"><path d="M7 10l5 5 5-5z"/><path d="M0 0h24v24H0z" fill="none"/></svg>');
    background-repeat: no-repeat;
    background-position: left 15px center;
    padding-left: 45px;
}
.filter-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.25);
}
.filter-group select:hover {
    border-color: var(--primary-color);
}
/* Initial Empty State */
.initial-state {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 300px;
    background-color: white;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    border: 1px solid var(--border-color);
}
.empty-state {
    text-align: center;
    padding: 40px;
}
.empty-icon {
    font-size: 60px;
    margin-bottom: 20px;
    color: var(--primary-color);
}
.empty-state h3 {
    font-size: 24px;
    font-weight: 600;
    margin: 0 0 15px;
    color: var(--text-color);
}
.empty-state p {
    font-size: 16px;
    color: var(--text-muted);
    max-width: 400px;
    margin: 0 auto;
}
/* Subjects Container */
.subjects-container {
    background-color: white;
    border-radius: var(--border-radius);
    padding: 30px;
    box-shadow: var(--box-shadow);
    border: 1px solid var(--border-color);
}
.subjects-header {
    margin-bottom: 30px;
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 20px;
}
.university-name {
    font-size: 28px;
    font-weight: 700;
    color: var(--primary-color);
    margin: 0 0 10px;
}
.specialization-name {
    font-size: 22px;
    font-weight: 600;
    color: var(--text-color);
    margin: 0 0 15px;
}
.subjects-count {
    font-size: 16px;
    color: var(--text-muted);
    margin: 0;
}
/* Subjects Grid */
.subjects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 25px;
}
.subject-card {
    background-color: white;
    border-radius: var(--border-radius);
    box-shadow: 0 3px 12px rgba(0,0,0,0.08);
    border: 1px solid var(--border-color);
    transition: var(--transition);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    height: 100%;
    min-height: 350px;
}
.subject-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
    border-color: var(--primary-color);
}
.subject-card-header {
    background: var(--primary-gradient);
    padding: 20px;
    color: white;
    position: relative;
    min-height: 80px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}
.subject-title {
    font-size: 20px;
    font-weight: 700;
    margin: 0 0 10px;
    line-height: 1.3;
    color: white;
}
.subject-title-link {
    color: white !important;
    text-decoration: none;
    transition: var(--transition);
    display: block;
}
.subject-title-link:hover {
    color: rgba(255, 255, 255, 0.85) !important;
    text-decoration: underline;
}
.course-code {
    display: inline-block;
    padding: 5px 12px;
    background-color: rgba(255,255,255,0.2);
    border-radius: 50px;
    font-weight: 600;
    font-size: 14px;
}
.subject-card-body {
    padding: 20px;
    flex: 1;
    display: flex;
    flex-direction: column;
}
.subject-description {
    margin: 0 0 15px;
    font-size: 15px;
    line-height: 1.6;
    color: var(--text-color);
    min-height: 75px;
    max-height: 75px;
    overflow: hidden;
    flex: 1;
}
.subject-meta {
    display: flex;
    justify-content: space-between;
    font-size: 14px;
    color: var(--text-muted);
    margin-top: auto;
}
.meta-item {
    display: flex;
    align-items: center;
}
.meta-icon {
    margin-left: 8px;
    font-style: normal;
}
.subject-card-footer {
    padding: 15px 20px;
    border-top: 1px solid var(--border-color);
    background-color: var(--light-bg);
}
.subject-action-buttons {
    display: flex;
    gap: 10px;
}
.view-subject-btn {
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: 10px 15px;
    border-radius: 6px;
    font-family: inherit;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    flex: 1;
}
.subject-page-link {
    background-color: var(--light-bg);
    color: var(--text-color);
    border: 1px solid var(--border-color);
    padding: 10px 15px;
    border-radius: 6px;
    font-family: inherit;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    text-align: center;
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}
.view-subject-btn:hover {
    background-color: var(--secondary-color);
    transform: translateY(-2px);
}
.subject-page-link:hover {
    background-color: white;
    border-color: var(--primary-color);
    color: var(--primary-color);
    transform: translateY(-2px);
}
/* Modal Styles */
.uni-modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0,0,0,0.6);
    backdrop-filter: blur(5px);
}
.uni-modal-content {
    background-color: white;
    margin: 50px auto;
    padding: 0;
    border-radius: var(--border-radius);
    box-shadow: 0 10px 40px rgba(0,0,0,0.3);
    width: 90%;
    max-width: 900px;
    position: relative;
    max-height: 85vh;
    overflow-y: auto;
    animation: modalFadeIn 0.3s;
}
@keyframes modalFadeIn {
    from { opacity: 0; transform: translateY(-30px); }
    to { opacity: 1; transform: translateY(0); }
}
.uni-close-modal {
    position: absolute;
    top: 20px;
    left: 20px;
    color: white;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    z-index: 10;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(0,0,0,0.3);
    border-radius: 50%;
    transition: var(--transition);
}
.uni-close-modal:hover {
    background-color: rgba(0,0,0,0.5);
    transform: rotate(90deg);
}
/* Subject Modal Content */
.subject-modal-header {
    background: var(--primary-gradient);
    padding: 40px 30px;
    color: white;
    position: relative;
    overflow: hidden;
}
.subject-modal-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="25" cy="25" r="1" fill="rgba(255,255,255,0.05)"/><circle cx="75" cy="75" r="1" fill="rgba(255,255,255,0.05)"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    pointer-events: none;
    opacity: 0.7;
}
.modal-subject-title {
    font-size: 28px;
    font-weight: 700;
    margin: 0 0 15px;
    position: relative;
    z-index: 1;
}
.modal-subject-meta {
    display: flex;
    gap: 20px;
    position: relative;
    z-index: 1;
    flex-wrap: wrap;
}
.modal-course-code, 
.modal-credit-hours,
.modal-academic-year {
    display: inline-block;
    padding: 5px 15px;
    background-color: rgba(255,255,255,0.2);
    border-radius: 50px;
    font-weight: 600;
    font-size: 14px;
}
.subject-modal-body {
    padding: 30px;
}
/* Added grid for university, specialization, semester info */
.modal-info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
    background-color: var(--light-bg);
    border-radius: var(--border-radius);
    padding: 20px;
    border: 1px solid var(--border-color);
}
.modal-info-item {
    text-align: center;
}
.modal-info-item h3 {
    font-size: 16px;
    font-weight: 700;
    margin: 0 0 10px;
    color: var(--text-muted);
}
.modal-info-item p {
    font-size: 18px;
    font-weight: 600;
    margin: 0;
    color: var(--text-color);
}
.modal-description,
.modal-test-details,
.modal-chapters {
    margin-bottom: 30px;
    background-color: var(--light-bg);
    border-radius: var(--border-radius);
    padding: 20px;
    border: 1px solid var(--border-color);
}
.modal-description h3,
.modal-test-details h3,
.modal-chapters h3 {
    color: var(--text-color);
    margin: 0 0 15px 0;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--primary-color);
    font-size: 18px;
    font-weight: 700;
}
.modal-description p,
.modal-test-details p {
    margin: 0;
    line-height: 1.6;
    white-space: pre-line;
}
.chapters-content {
    white-space: pre-line;
    line-height: 1.6;
    max-height: 300px;
    overflow-y: auto;
    padding: 10px;
    background: white;
    border-radius: 6px;
    border: 1px solid var(--border-color);
}
/* Quizzes Grid */
.quizzes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 20px;
    margin-top: 20px;
}
.quiz-card {
    background-color: white;
    border-radius: 10px;
    box-shadow: 0 3px 10px rgba(0,0,0,0.1);
    overflow: hidden;
    border: 1px solid var(--border-color);
    transition: var(--transition);
    height: 100%;
    display: flex;
    flex-direction: column;
}
.quiz-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0,0,0,0.15);
}
/* Quiz difficulty styles */
.quiz-card.difficulty-beginner {
    border-top: 4px solid var(--beginner-color);
}
.quiz-card.difficulty-intermediate {
    border-top: 4px solid var(--intermediate-color);
}
.quiz-card.difficulty-advanced {
    border-top: 4px solid var(--advanced-color);
}
.quiz-card.difficulty-expert {
    border-top: 4px solid var(--danger-color);
}
.quiz-card-header {
    padding: 15px;
    border-bottom: 1px solid var(--border-color);
}
.quiz-title {
    font-size: 18px;
    font-weight: 600;
    margin: 0 0 10px;
    color: var(--text-color);
    line-height: 1.4;
}
.quiz-meta {
    display: flex;
    justify-content: space-between;
    font-size: 13px;
}
.quiz-language {
    color: var(--text-muted);
}
.quiz-difficulty {
    font-weight: 600;
}
.difficulty-beginner {
    color: var(--beginner-color);
}
.difficulty-intermediate {
    color: var(--intermediate-color);
}
.difficulty-advanced {
    color: var(--advanced-color);
}
.difficulty-expert {
    color: var(--danger-color);
}
.quiz-card-body {
    padding: 15px;
    flex: 1;
}
.quiz-description {
    font-size: 14px;
    color: var(--text-color);
    margin: 0 0 15px;
    line-height: 1.6;
    height: 65px;
    overflow: hidden;
}
.quiz-stats {
    display: flex;
    justify-content: space-between;
    font-size: 13px;
    color: var(--text-muted);
}
.quiz-questions, 
.quiz-time {
    display: flex;
    align-items: center;
}
.quiz-icon {
    margin-left: 5px;
    font-style: normal;
}
.quiz-card-footer {
    padding: 15px;
    border-top: 1px solid var(--border-color);
    background-color: var(--light-bg);
    text-align: center;
}
.take-quiz-btn {
    display: inline-block;
    background-color: var(--primary-color);
    color: white;
    text-decoration: none;
    padding: 8px 20px;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 600;
    transition: var(--transition);
    width: 100%;
}
.take-quiz-btn:hover {
    background-color: var(--secondary-color);
    transform: translateY(-2px);
}
.no-quizzes {
    background-color: var(--light-bg);
    padding: 25px;
    border-radius: 8px;
    text-align: center;
    border: 1px dashed var(--border-color);
}
.no-quizzes p {
    margin: 0 0 10px;
    color: var(--text-muted);
    font-size: 15px;
}
.no-quiz-suggestion {
    font-size: 16px;
    color: var(--primary-color);
    font-weight: 600;
}
.subject-modal-footer {
    padding: 20px 30px;
    border-top: 1px solid var(--border-color);
    background-color: var(--light-bg);
    text-align: center;
}
.view-subject-page-btn {
    display: inline-block;
    background: var(--primary-gradient);
    color: white;
    text-decoration: none;
    padding: 12px 30px;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    transition: var(--transition);
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
}
.view-subject-page-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.4);
}
/* Loading Spinner */
.directory-loading {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(255,255,255,0.8);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 999;
    backdrop-filter: blur(5px);
}
.loading-spinner {
    width: 50px;
    height: 50px;
    border: 4px solid rgba(102, 126, 234, 0.3);
    border-radius: 50%;
    border-top: 4px solid var(--primary-color);
    animation: spin 1s linear infinite;
    margin-bottom: 15px;
}
@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}
.directory-loading p {
    font-size: 16px;
    font-weight: 600;
    color: var(--primary-color);
}
.modal-quizzes {
    margin-bottom: 30px;
}
.modal-quizzes h3 {
    font-size: 20px;
    font-weight: 700;
    margin: 0 0 15px;
    color: var(--text-color);
    position: relative;
    padding-right: 15px;
}
.modal-quizzes h3::before {
    content: '';
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 20px;
    background-color: var(--primary-color);
    border-radius: 2px;
}
/* Modal Featured Image */
.modal-featured-image {
    margin-bottom: 30px;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--box-shadow);
    max-height: 300px;
    text-align: center;
}
.modal-featured-image img {
    width: 100%;
    height: auto;
    object-fit: cover;
    display: block;
}
/* Description content */
.description-content,
.test-details-content {
    margin: 0;
    line-height: 1.6;
    white-space: pre-line;
    max-height: none;
    overflow: visible;
}
/* Responsive Design */
@media (max-width: 992px) {
    .directory-header {
        padding: 30px;
    }
    
    .directory-title {
        font-size: 30px;
    }
    
    .subjects-grid,
    .quizzes-grid {
        grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    }
    
    .modal-info-grid {
        grid-template-columns: 1fr 1fr;
    }
}
@media (max-width: 768px) {
    .university-directory-container {
        padding: 20px 15px;
    }
    
    .directory-title {
        font-size: 26px;
    }
    
    .directory-subtitle {
        font-size: 16px;
    }
    
    .search-filters {
        flex-direction: column;
        gap: 15px;
    }
    
    .subjects-grid,
    .quizzes-grid {
        grid-template-columns: 1fr;
    }
    
    .uni-modal-content {
        width: 95%;
        margin: 30px auto;
    }
    
    .subject-modal-header {
        padding: 30px 20px;
    }
    
    .modal-subject-title {
        font-size: 22px;
    }
    
    .subject-modal-body {
        padding: 20px;
    }
    
    .subject-meta {
        flex-direction: column;
        gap: 10px;
    }
    
    .modal-info-grid {
        grid-template-columns: 1fr;
    }
    
    .subject-action-buttons {
        flex-direction: column;
    }
    
    .view-subject-btn, 
    .subject-page-link {
        width: 100%;
    }
}
/* Language-specific adjustments */
[dir="rtl"] .university-directory-container {
    font-family: 'Cairo', 'Noto Sans Arabic', 'Segoe UI', Tahoma, Arial, sans-serif;
}
[dir="ltr"] .university-directory-container {
    direction: ltr;
    text-align: left;
}
[dir="ltr"] .meta-icon,
[dir="ltr"] .quiz-icon {
    margin-left: 0;
    margin-right: 8px;
}
[dir="ltr"] .filter-group select {
    background-position: right 15px center;
    padding-left: 15px;
    padding-right: 45px;
}