/* Enhanced Syllabus Pages CSS */

/* Core Variables */
:root {
    --primary-color: #2563eb;
    --secondary-color: #1e40af;
    --accent-color: #3b82f6;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --dark-color: #1f2937;
    --light-color: #f8fafc;
    --border-color: #e5e7eb;
    --text-primary: #111827;
    --text-secondary: #6b7280;
    --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);
    --border-radius: 8px;
    --transition: all 0.3s ease;
}

/* Enhanced Syllabus Container */
.enhanced-syllabus-container {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    padding: 2rem 0;
}

.syllabus-hero-section {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.9), rgba(118, 75, 162, 0.9));
    color: white;
    padding: 4rem 0;
    margin-bottom: 2rem;
    border-radius: var(--border-radius);
    position: relative;
    overflow: hidden;
}

.syllabus-hero-section::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="rgba(255,255,255,0.1)"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    opacity: 0.3;
}

.syllabus-hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
}

.syllabus-hero-title {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1rem;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

.syllabus-hero-subtitle {
    font-size: 1.25rem;
    opacity: 0.9;
    margin-bottom: 2rem;
}

/* AI Search Integration */
.ai-search-container {
    background: white;
    border-radius: var(--border-radius);
    padding: 2rem;
    margin: 2rem 0;
    box-shadow: var(--shadow-lg);
}

.ai-search-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.ai-search-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.2rem;
}

.search-tabs {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
}

.search-tab {
    padding: 0.5rem 1rem;
    border: 2px solid var(--border-color);
    border-radius: 25px;
    background: white;
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition);
    font-size: 0.9rem;
    font-weight: 500;
}

.search-tab.active,
.search-tab:hover {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
    transform: translateY(-2px);
}

.search-input-container {
    position: relative;
    margin-bottom: 1rem;
}

.search-input {
    width: 100%;
    padding: 1rem 3rem 1rem 1rem;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: 1rem;
    transition: var(--transition);
}

.search-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.search-button {
    position: absolute;
    right: 0.5rem;
    top: 50%;
    transform: translateY(-50%);
    background: var(--primary-color);
    color: white;
    border: none;
    padding: 0.75rem;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
}

.search-button:hover {
    background: var(--secondary-color);
    transform: translateY(-50%) scale(1.05);
}

.voice-search-btn {
    position: absolute;
    right: 4rem;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 50%;
    transition: var(--transition);
}

.voice-search-btn:hover {
    background: var(--light-color);
    color: var(--primary-color);
}

.search-suggestions {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    margin-top: 1rem;
}

.search-suggestion {
    padding: 0.25rem 0.75rem;
    background: var(--light-color);
    border: 1px solid var(--border-color);
    border-radius: 15px;
    font-size: 0.8rem;
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition);
}

.search-suggestion:hover {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

/* Enhanced Content Cards */
.syllabus-content-grid {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 2rem;
    margin-top: 2rem;
}

.syllabus-main-content {
    background: white;
    border-radius: var(--border-radius);
    padding: 2rem;
    box-shadow: var(--shadow-md);
}

.syllabus-card {
    background: white;
    border-radius: var(--border-radius);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.syllabus-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.syllabus-card-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.syllabus-card-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
}

.syllabus-card-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.syllabus-card-subtitle {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin: 0;
}

.syllabus-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.syllabus-list-item {
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--border-color);
    transition: var(--transition);
}

.syllabus-list-item:last-child {
    border-bottom: none;
}

.syllabus-list-item:hover {
    background: var(--light-color);
    margin: 0 -1rem;
    padding-left: 1rem;
    padding-right: 1rem;
    border-radius: var(--border-radius);
}

.syllabus-link {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition);
}

.syllabus-link:hover {
    color: var(--primary-color);
    text-decoration: none;
}

.syllabus-link::before {
    content: '📚';
    font-size: 1.2rem;
}

/* Enhanced Sidebar */
.syllabus-sidebar {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.sidebar-widget {
    background: white;
    border-radius: var(--border-radius);
    padding: 1.5rem;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
}

.sidebar-widget-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.sidebar-widget-title::before {
    content: '⭐';
    font-size: 1.2rem;
}

/* Quick Access Widget */
.quick-access-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 0.75rem;
}

.quick-access-item {
    padding: 0.75rem;
    background: var(--light-color);
    border-radius: var(--border-radius);
    text-decoration: none;
    color: var(--text-primary);
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.quick-access-item:hover {
    background: var(--primary-color);
    color: white;
    text-decoration: none;
    transform: translateX(5px);
}

/* Stats Widget */
.stats-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.stat-item {
    text-align: center;
    padding: 1rem;
    background: var(--light-color);
    border-radius: var(--border-radius);
}

.stat-number {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    display: block;
}

.stat-label {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-top: 0.25rem;
}

/* Interactive Elements */
.syllabus-accordion {
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    overflow: hidden;
    margin-bottom: 1rem;
}

.accordion-header {
    background: var(--light-color);
    padding: 1rem;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: var(--transition);
    border-bottom: 1px solid var(--border-color);
}

.accordion-header:hover {
    background: var(--primary-color);
    color: white;
}

.accordion-content {
    padding: 1rem;
    background: white;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.accordion-content.active {
    max-height: 500px;
}

/* Progress Indicators */
.progress-bar {
    width: 100%;
    height: 8px;
    background: var(--border-color);
    border-radius: 4px;
    overflow: hidden;
    margin: 1rem 0;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    border-radius: 4px;
    transition: width 0.3s ease;
}

/* Enhanced Tables */
.syllabus-table {
    width: 100%;
    border-collapse: collapse;
    margin: 1rem 0;
    background: white;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.syllabus-table th {
    background: var(--primary-color);
    color: white;
    padding: 1rem;
    text-align: left;
    font-weight: 600;
}

.syllabus-table td {
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
    transition: var(--transition);
}

.syllabus-table tr:hover td {
    background: var(--light-color);
}

/* Breadcrumb Enhancement */
.enhanced-breadcrumb {
    background: rgba(255, 255, 255, 0.9);
    padding: 1rem;
    border-radius: var(--border-radius);
    margin-bottom: 1rem;
    backdrop-filter: blur(10px);
}

.breadcrumb-list {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    list-style: none;
    margin: 0;
    padding: 0;
}

.breadcrumb-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.breadcrumb-link {
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition);
}

.breadcrumb-link:hover {
    color: var(--primary-color);
    text-decoration: none;
}

.breadcrumb-separator {
    color: var(--text-secondary);
    font-size: 0.8rem;
}

/* Loading States */
.loading-skeleton {
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: loading 1.5s infinite;
    border-radius: var(--border-radius);
}

@keyframes loading {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* Search Results */
.search-results-container {
    background: white;
    border-radius: var(--border-radius);
    padding: 1.5rem;
    margin-top: 1rem;
    box-shadow: var(--shadow-md);
    max-height: 400px;
    overflow-y: auto;
}

.search-result-item {
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
    cursor: pointer;
    transition: var(--transition);
}

.search-result-item:hover {
    background: var(--light-color);
}

.search-result-title {
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.search-result-snippet {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.4;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .syllabus-content-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .syllabus-hero-title {
        font-size: 2.5rem;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .enhanced-syllabus-container {
        padding: 1rem 0;
    }
    
    .syllabus-hero-section {
        padding: 2rem 0;
        margin-bottom: 1rem;
    }
    
    .syllabus-hero-title {
        font-size: 2rem;
    }
    
    .syllabus-hero-subtitle {
        font-size: 1rem;
    }
    
    .ai-search-container,
    .syllabus-main-content,
    .sidebar-widget {
        padding: 1rem;
    }
    
    .search-tabs {
        justify-content: center;
    }
    
    .search-tab {
        font-size: 0.8rem;
        padding: 0.4rem 0.8rem;
    }
    
    .syllabus-table {
        font-size: 0.9rem;
    }
    
    .syllabus-table th,
    .syllabus-table td {
        padding: 0.75rem 0.5rem;
    }
}

@media (max-width: 480px) {
    .syllabus-hero-title {
        font-size: 1.75rem;
    }
    
    .search-input {
        padding: 0.75rem 2.5rem 0.75rem 0.75rem;
    }
    
    .voice-search-btn {
        right: 3rem;
    }
    
    .syllabus-card {
        padding: 1rem;
    }
    
    .syllabus-card-header {
        flex-direction: column;
        text-align: center;
        gap: 0.5rem;
    }
    
    .breadcrumb-list {
        flex-wrap: wrap;
    }
}

/* Print Styles */
@media print {
    .enhanced-syllabus-container {
        background: white;
    }
    
    .ai-search-container,
    .syllabus-sidebar {
        display: none;
    }
    
    .syllabus-content-grid {
        grid-template-columns: 1fr;
    }
    
    .syllabus-card {
        box-shadow: none;
        border: 1px solid var(--border-color);
    }
}

/* Dark Mode Support */
@media (prefers-color-scheme: dark) {
    :root {
        --text-primary: #f9fafb;
        --text-secondary: #d1d5db;
        --light-color: #374151;
        --border-color: #4b5563;
    }
    
    .syllabus-main-content,
    .syllabus-card,
    .sidebar-widget {
        background: #1f2937;
        color: var(--text-primary);
    }
    
    .search-input {
        background: #374151;
        color: var(--text-primary);
        border-color: var(--border-color);
    }
}

/* Animation Classes */
.fade-in {
    animation: fadeIn 0.5s ease-in;
}

.slide-up {
    animation: slideUp 0.5s ease-out;
}

.scale-in {
    animation: scaleIn 0.3s ease-out;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

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

@keyframes scaleIn {
    from { 
        opacity: 0;
        transform: scale(0.9);
    }
    to { 
        opacity: 1;
        transform: scale(1);
    }
}

/* Utility Classes */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }
.font-bold { font-weight: 700; }
.font-semibold { font-weight: 600; }
.font-medium { font-weight: 500; }
.text-primary { color: var(--primary-color); }
.text-secondary { color: var(--text-secondary); }
.bg-primary { background-color: var(--primary-color); }
.bg-light { background-color: var(--light-color); }
.rounded { border-radius: var(--border-radius); }
.shadow { box-shadow: var(--shadow-md); }
.transition { transition: var(--transition); }