/* Modern CSS Variables and Base Styles */
:root {
    /* Modern Color Palette */
    --primary-color: #667eea;
    --primary-dark: #5a67d8;
    --secondary-color: #764ba2;
    --accent-color: #4299e1;
    
    /* Status Colors */
    --success-color: #48bb78;
    --success-light: #dcfce7;
    --warning-color: #ed8936;
    --warning-light: #fef3c7;
    --danger-color: #f56565;
    --danger-light: #fecaca;
    
    /* Neutral Colors */
    --text-primary: #2d3748;
    --text-secondary: #4a5568;
    --text-muted: #718096;
    --bg-primary: #ffffff;
    --bg-secondary: #f7fafc;
    --bg-tertiary: #edf2f7;
    --border-color: #e2e8f0;
    --border-light: #f1f5f9;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.1);
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* Modern Typography */
body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-weight: 400;
    line-height: 1.6;
    color: var(--text-primary);
    font-feature-settings: 'cv11', 'ss01';
    font-variation-settings: 'opsz' 32;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.25;
    color: var(--text-primary);
}

/* Fix sitename visibility */
.sitename {
    color: #2d3748 !important;
    font-weight: 700 !important;
    font-size: 1.5rem !important;
    margin: 0 !important;
    text-decoration: none !important;
    background: none !important;
    -webkit-text-fill-color: unset !important;
    background-clip: unset !important;
    -webkit-background-clip: unset !important;
}

.logo .sitename {
    color: #2d3748 !important;
}

/* Fix navigation text visibility */
.navmenu ul li a {
    color: #2d3748 !important;
    font-weight: 500 !important;
    text-decoration: none !important;
    background: none !important;
    -webkit-text-fill-color: unset !important;
    background-clip: unset !important;
    -webkit-background-clip: unset !important;
}

.navmenu ul li a:hover {
    color: #667eea !important;
}

.navmenu ul li a.active {
    color: #667eea !important;
    font-weight: 600 !important;
}

/* Fix dropdown menu text */
.navmenu ul li ul li a {
    color: #2d3748 !important;
    font-weight: 400 !important;
}

.navmenu ul li ul li a:hover {
    color: #667eea !important;
    background-color: #f7fafc !important;
}

/* Fix main navigation container */
.navmenu ul {
    background: none !important;
}

.navmenu ul li {
    background: none !important;
}

/* Ensure dropdown text is also visible */
.navmenu .dropdown ul {
    background: white !important;
    border: 1px solid #e2e8f0 !important;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.07) !important;
}

.navmenu .dropdown ul li a {
    color: #2d3748 !important;
    padding: 8px 16px !important;
}

.navmenu .dropdown ul li a:hover {
    color: #667eea !important;
    background-color: #f7fafc !important;
}

/* Modern Card Component */
.modern-card {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
    transition: all var(--transition-normal);
}

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

/* Lab Cards Specific Styling */
.lab-card {
    position: relative;
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
    transition: all var(--transition-normal);
    overflow: hidden;
}

.lab-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-color);
}

.lab-card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.lab-title {
    flex: 1;
    min-width: 200px;
}

.lab-name {
    margin: 0 0 var(--spacing-xs) 0;
    color: var(--text-primary);
    font-size: 1.25rem;
    font-weight: 600;
    line-height: 1.3;
}

.time-remaining {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--warning-color);
    font-size: 0.875rem;
    margin-top: var(--spacing-xs);
}

.lab-details {
    margin-bottom: var(--spacing-lg);
}

.detail-row {
    display: flex;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
}

.detail-row:last-child {
    margin-bottom: 0;
}

.detail-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    flex: 1;
    min-width: 0;
}

.detail-item.full-width {
    flex: none;
    width: 100%;
}

.detail-icon {
    color: var(--primary-color);
    font-size: 1rem;
    margin-top: 2px;
    flex-shrink: 0;
}

.detail-content {
    display: flex;
    flex-direction: column;
    gap: 2px;
    min-width: 0;
}

.detail-label {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.detail-value {
    font-size: 0.875rem;
    color: var(--text-primary);
    word-break: break-word;
}

.lab-actions {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: auto;
}

.action-primary {
    flex: 1;
    justify-content: center;
}

.action-secondary {
    flex: 1;
    justify-content: center;
}

/* Empty State */
.empty-state {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 400px;
    padding: var(--spacing-2xl);
}

.empty-state-content {
    text-align: center;
    max-width: 400px;
}

.empty-state-icon {
    font-size: 4rem;
    color: var(--text-muted);
    margin-bottom: var(--spacing-lg);
}

.empty-state h3 {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
}

.empty-state p {
    color: var(--text-muted);
    margin-bottom: var(--spacing-lg);
    line-height: 1.6;
}

/* Lab Statistics Cards */
.lab-stats-section {
    padding: var(--spacing-lg) 0;
    background: var(--bg-secondary);
}

.stat-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    transition: all var(--transition-normal);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

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

.stat-icon {
    width: 50px;
    height: 50px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: white;
    flex-shrink: 0;
}

.stat-total .stat-icon { background: var(--primary-color); }
.stat-active .stat-icon { background: var(--success-color); }
.stat-pending .stat-icon { background: var(--warning-color); }
.stat-ended .stat-icon { background: var(--text-muted); }

.stat-content h3 {
    margin: 0;
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1;
}

.stat-content p {
    margin: 0;
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-weight: 500;
}

/* Enhanced Loading States */
.loading-card {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
}

.loading-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
}

.loading-body {
    margin-bottom: var(--spacing-lg);
}

.loading-actions {
    display: flex;
    gap: var(--spacing-sm);
}

/* Modern Page Title */
.modern-page-title {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.9), rgba(118, 75, 162, 0.9)), url('assets/img/sdx/header_bg.png');
    background-size: cover;
    background-position: center;
    color: white;
    padding: var(--spacing-2xl) 0;
}

.modern-page-title h1 {
    color: white;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    display: flex;
    align-items: center;
}

.modern-page-title p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.1rem;
    margin: 0;
}

/* Admin Page Title */
.admin-page-title {
    background: linear-gradient(135deg, rgba(52, 73, 94, 0.9), rgba(44, 62, 80, 0.9)), url('assets/img/sdx/tech_admin_bg.jpg');
}

/* Modern Button Styles */
.btn-modern {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: var(--spacing-sm) var(--spacing-lg);
    border: none;
    border-radius: var(--radius-md);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-normal);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.btn-modern:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(102, 126, 234, 0.4);
    color: white;
    text-decoration: none;
}

/* Status Indicators */
.status-indicator {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: 9999px;
    font-size: 0.875rem;
    font-weight: 500;
}

.status-active {
    background: var(--success-light);
    color: #166534;
}

.status-pending {
    background: var(--warning-light);
    color: #92400e;
}

.status-ended {
    background: var(--bg-tertiary);
    color: var(--text-secondary);
}

.status-failed {
    background: var(--danger-light);
    color: #991b1b;
}

/* Modern Table Improvements */
.table-modern {
    border-collapse: separate;
    border-spacing: 0;
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.table-modern th {
    background: var(--bg-secondary);
    color: var(--text-primary);
    font-weight: 600;
    padding: var(--spacing-lg);
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.table-modern td {
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--border-light);
    vertical-align: middle;
}

.table-modern tr:hover {
    background: var(--bg-secondary);
}

/* 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(--radius-md);
    height: 1rem;
    margin: var(--spacing-sm) 0;
}

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

/* Form Improvements */
.form-modern .form-control {
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-sm) var(--spacing-md);
    transition: all var(--transition-normal);
    font-size: 1rem;
}

.form-modern .form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
    outline: none;
}

.form-modern .form-label {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.form-modern .form-select {
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    transition: all var(--transition-normal);
}

.form-modern .form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

/* Modal Improvements */
.modal-modern .modal-content {
    border: none;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
}

.modal-modern .modal-header {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border-radius: var(--radius-xl) var(--radius-xl) 0 0;
    border-bottom: none;
}

.modal-modern .modal-body {
    padding: var(--spacing-xl);
}

.modal-modern .modal-footer {
    border-top: 1px solid var(--border-light);
    padding: var(--spacing-lg) var(--spacing-xl);
}

.modal-modern .btn-close {
    filter: brightness(0) invert(1);
}

/* Modern Header */
.header-modern {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    transition: all var(--transition-normal);
}

.header-modern.scrolled {
    box-shadow: var(--shadow-md);
}

/* Modern Footer Styles */
.footer-modern {
    background: linear-gradient(135deg, #2d3748 0%, #4a5568 100%);
    color: #e2e8f0;
    margin-top: var(--spacing-2xl);
}

.footer-top {
    padding: var(--spacing-2xl) 0;
}

.footer-bottom {
    background: rgba(0, 0, 0, 0.2);
    padding: var(--spacing-lg) 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.sitename-footer {
    color: #e2e8f0 !important;
    font-weight: 700;
    font-size: 1.5rem;
    text-decoration: none;
}

.footer-description {
    color: #cbd5e0;
    margin-top: var(--spacing-md);
    line-height: 1.6;
}

.footer-heading {
    color: #ffffff;
    font-weight: 600;
    font-size: 1.1rem;
    margin-bottom: var(--spacing-lg);
    position: relative;
}

.footer-heading::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 30px;
    height: 2px;
    background: var(--primary-color);
}

.footer-links ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-links li {
    margin-bottom: var(--spacing-sm);
}

.footer-link {
    color: #cbd5e0;
    text-decoration: none;
    transition: all var(--transition-normal);
    display: inline-flex;
    align-items: center;
    font-size: 0.95rem;
}

.footer-link:hover {
    color: var(--primary-color);
    transform: translateX(5px);
    text-decoration: none;
}

.footer-link i {
    font-size: 0.875rem;
    opacity: 0.7;
}

/* Social Links */
.social-links {
    gap: var(--spacing-md);
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    color: #cbd5e0;
    border-radius: 50%;
    text-decoration: none;
    transition: all var(--transition-normal);
    backdrop-filter: blur(10px);
}

.social-link:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(102, 126, 234, 0.3);
}

/* Contact Information */
.contact-info {
    margin-top: var(--spacing-lg);
}

.contact-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: var(--spacing-lg);
}

.contact-icon {
    color: var(--primary-color);
    font-size: 1.25rem;
    margin-right: var(--spacing-md);
    margin-top: 2px;
    flex-shrink: 0;
}

.contact-details p {
    margin: 0;
    color: #cbd5e0;
    line-height: 1.6;
}

.contact-details strong {
    color: #ffffff;
}

/* Footer Bottom */
.footer-copyright p {
    margin: 0;
    color: #a0aec0;
    font-size: 0.9rem;
}

.footer-legal {
    display: flex;
    gap: var(--spacing-lg);
    justify-content: flex-end;
}

.footer-legal-link {
    color: #a0aec0;
    text-decoration: none;
    font-size: 0.9rem;
    transition: color var(--transition-normal);
}

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

/* Scroll to Top Button */
.scroll-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    color: white;
    border-radius: 50%;
    text-decoration: none;
    transition: all var(--transition-normal);
    z-index: 1000;
    display: none;
    opacity: 0;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
}

.scroll-top:hover {
    background: var(--primary-dark);
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.4);
    color: white;
    text-decoration: none;
}

.scroll-top i {
    font-size: 1.5rem;
}

/* Responsive Grid */
.grid-modern {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin: var(--spacing-lg) 0;
}

/* Button loading state */
.btn-loading {
    position: relative;
    color: transparent !important;
}

.btn-loading::after {
    content: "";
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 20px;
    height: 20px;
    border: 2px solid #ffffff;
    border-radius: 50%;
    border-top-color: transparent;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: translate(-50%, -50%) rotate(360deg); }
}

/* Fade in animations */
.fade-in {
    animation: fadeIn 0.6s ease forwards;
}

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

/* Stagger animations for cards */
.modern-card:nth-child(1) { animation-delay: 0.1s; }
.modern-card:nth-child(2) { animation-delay: 0.2s; }
.modern-card:nth-child(3) { animation-delay: 0.3s; }
.modern-card:nth-child(4) { animation-delay: 0.4s; }
.modern-card:nth-child(5) { animation-delay: 0.5s; }
.modern-card:nth-child(6) { animation-delay: 0.6s; }

.lab-card:nth-child(1) { animation-delay: 0.1s; }
.lab-card:nth-child(2) { animation-delay: 0.2s; }
.lab-card:nth-child(3) { animation-delay: 0.3s; }
.lab-card:nth-child(4) { animation-delay: 0.4s; }
.lab-card:nth-child(5) { animation-delay: 0.5s; }
.lab-card:nth-child(6) { animation-delay: 0.6s; }

/* Smooth page transitions */
.page-transition {
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.6s ease;
}

.page-transition.loaded {
    opacity: 1;
    transform: translateY(0);
}

/* Utility Classes */
.text-gradient {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.glassmorphism {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

/* ===================================
 CATALOG PAGE STYLES
 =================================== */

/* Breadcrumb Navigation */
.breadcrumb-nav {
    margin-bottom: var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 0.9rem;
}

.breadcrumb-link {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: color var(--transition-normal);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.breadcrumb-link:hover {
    color: white;
    text-decoration: none;
}

.breadcrumb-separator {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.8rem;
}

.breadcrumb-current {
    color: white;
    font-weight: 500;
}

/* Subcategories Section */
.subcategories-section {
    padding: var(--spacing-2xl) 0;
    background: var(--bg-secondary);
}

.section-header h2 {
    color: var(--text-primary);
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
}

.subcategories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xl);
}

.subcategory-card {
    background: white;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
    transition: all var(--transition-normal);
    position: relative;
}

.subcategory-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.subcategory-card.admin-preview {
    border: 2px dashed var(--warning-color);
    opacity: 0.8;
}

.subcategory-image {
    height: 200px;
    overflow: hidden;
    position: relative;
}

.subcategory-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-normal);
}

.subcategory-card:hover .subcategory-image img {
    transform: scale(1.05);
}

.admin-badge {
    position: absolute;
    top: var(--spacing-sm);
    right: var(--spacing-sm);
    background: var(--warning-color);
    color: white;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    z-index: 10;
}

.subcategory-content {
    padding: var(--spacing-lg);
}

.subcategory-content h3 {
    color: var(--text-primary);
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    line-height: 1.3;
}

.subcategory-content p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: var(--spacing-md);
}

.subcategory-meta {
    margin-bottom: var(--spacing-lg);
}

.lab-count {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--primary-color);
    font-size: 0.875rem;
    font-weight: 500;
}

.subcategory-actions {
    padding: 0 var(--spacing-lg) var(--spacing-lg);
}

/* Labs Section */
.labs-section {
    padding: var(--spacing-2xl) 0;
}

.category-stats {
    display: flex;
    justify-content: center;
    margin-bottom: var(--spacing-xl);
}

.stats-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    min-width: 200px;
}

.stats-icon {
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    color: white;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    flex-shrink: 0;
}

.stats-content h3 {
    margin: 0;
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1;
}

.stats-content p {
    margin: 0;
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.labs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: var(--spacing-xl);
}

/* Lab Card Specific for Catalog */
.lab-card.modern-card {
    position: relative;
    padding: var(--spacing-xl);
    transition: all var(--transition-normal);
}

.lab-card.modern-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-color);
}

.lab-card.admin-preview {
    border: 2px dashed var(--warning-color);
    opacity: 0.8;
}

.lab-card .admin-badge {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    background: var(--warning-color);
    color: white;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    z-index: 10;
}

.lab-card .lab-card-header {
    margin-bottom: var(--spacing-lg);
}

.lab-card .lab-name {
    color: var(--text-primary);
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    line-height: 1.3;
}

.lab-meta {
    display: flex;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
}

.lab-duration,
.lab-availability {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
}

.lab-duration i {
    color: var(--primary-color);
}

.lab-availability i {
    color: var(--success-color);
}

.lab-description {
    margin-bottom: var(--spacing-xl);
}

.lab-description p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0;
}

.lab-actions {
    margin-top: auto;
}

/* Modal Enhancements */
.lab-modal-name {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
}

.lab-modal-description {
    color: var(--text-secondary);
    line-height: 1.6;
}

.lab-modal-duration {
    display: flex;
    align-items: center;
    font-weight: 500;
    color: var(--text-primary);
}

/* ===================================
 ADMIN PAGE STYLES
 =================================== */

/* Admin Section */
.admin-section {
    padding: var(--spacing-2xl) 0;
    background: var(--bg-secondary);
}

/* Admin Statistics Grid */
.admin-stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-2xl);
}

.admin-stat-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
    transition: all var(--transition-normal);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.admin-stat-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.admin-stat-card .stat-icon {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    color: white;
    flex-shrink: 0;
}

.admin-stat-card .stat-content h3 {
    margin: 0;
    font-size: 2.25rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1;
}

.admin-stat-card .stat-content p {
    margin: 0;
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-weight: 500;
    margin-top: var(--spacing-xs);
}

/* Admin Actions */
.admin-actions {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
    align-items: center;
    flex-wrap: wrap;
}

.admin-actions .btn-modern {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
}

/* Users Grid for Admin */
.users-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-lg);
}

.user-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
    transition: all var(--transition-normal);
}

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

.user-card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--spacing-lg);
    gap: var(--spacing-md);
}

.user-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    flex: 1;
    min-width: 0;
}

.user-avatar {
    width: 50px;
    height: 50px;
    background: var(--bg-tertiary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--text-muted);
    flex-shrink: 0;
}

.user-details {
    min-width: 0;
    flex: 1;
}

.user-name {
    margin: 0;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.user-email {
    margin: 0;
    font-size: 0.875rem;
    color: var(--text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.user-status {
    flex-shrink: 0;
}

.user-meta {
    margin-bottom: var(--spacing-lg);
}

.meta-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-sm);
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.meta-item:last-child {
    margin-bottom: 0;
}

.meta-item i {
    color: var(--primary-color);
    width: 16px;
    text-align: center;
}

.user-type-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
}

.user-type-admin {
    background: var(--warning-light);
    color: #92400e;
}

.user-type-regular {
    background: var(--bg-tertiary);
    color: var(--text-secondary);
}

.user-actions {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.user-actions .btn {
    font-size: 0.875rem;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
}

.user-actions .text-muted {
    font-size: 0.75rem;
    line-height: 1.4;
    margin-top: var(--spacing-xs);
}

.user-actions .text-muted a {
    color: var(--primary-color);
    text-decoration: none;
}

.user-actions .text-muted a:hover {
    text-decoration: underline;
}

/* Admin Table Styles */
.admin-table-container {
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    overflow: hidden;
    border: 1px solid var(--border-color);
}

.admin-table {
    width: 100%;
    border-collapse: collapse;
    margin: 0;
}

.admin-table th {
    background: var(--bg-secondary);
    color: var(--text-primary);
    font-weight: 600;
    padding: var(--spacing-lg);
    text-align: left;
    border-bottom: 1px solid var(--border-color);
    font-size: 0.875rem;
    white-space: nowrap;
}

.admin-table td {
    padding: var(--spacing-md) var(--spacing-lg);
    border-bottom: 1px solid var(--border-light);
    vertical-align: middle;
    font-size: 0.875rem;
}

.admin-table tr:hover {
    background: var(--bg-secondary);
}

.admin-table tr:last-child td {
    border-bottom: none;
}

.admin-table .btn {
    font-size: 0.75rem;
    padding: 0.25rem 0.5rem;
    margin: 0 0.125rem;
}

/* User Info Card for Modals */
.user-info-card {
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.user-info-card .user-avatar {
    font-size: 2rem;
    width: 60px;
    height: 60px;
}

.user-info-card .user-details h6 {
    margin: 0;
    font-weight: 600;
    color: var(--text-primary);
}

.user-info-card .user-details p {
    margin: 0;
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* Form Enhancements for Admin */
.form-modern {
    max-width: none;
}

.form-modern .row {
    margin-bottom: var(--spacing-md);
}

.form-modern .form-check {
    padding-left: 0;
}

.form-modern .form-check-input {
    margin-right: var(--spacing-sm);
}

.form-modern .form-check-label {
    font-weight: 500;
    color: var(--text-primary);
}

/* Enhanced Modal Forms */
.modal-modern .form-control,
.modal-modern .form-select {
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 0.875rem;
}

.modal-modern .form-control:focus,
.modal-modern .form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(102, 126, 234, 0.1);
}

.modal-modern .form-label {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.modal-modern .form-label i {
    color: var(--primary-color);
}

/* Alert Enhancements */
.alert-danger.d-flex {
    align-items: flex-start;
    gap: var(--spacing-sm);
}

.alert-danger .alert-heading {
    margin-bottom: var(--spacing-xs);
    font-weight: 600;
}

/* Responsive Improvements for Admin */
@media (max-width: 768px) {
    .admin-stats-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .users-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .user-card {
        padding: var(--spacing-md);
    }
    
    .user-card-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-sm);
    }
    
    .user-info {
        width: 100%;
    }
    
    .user-status {
        align-self: flex-start;
    }
    
    .user-actions {
        flex-direction: column;
    }
    
    .user-actions .btn {
        justify-content: center;
    }
    
    .admin-actions {
        flex-direction: column;
        align-items: stretch;
    }
    
    .admin-actions .btn-modern {
        justify-content: center;
    }
    
    /* Make admin tables scrollable on mobile */
    .admin-table-container {
        overflow-x: auto;
    }
    
    .admin-table {
        min-width: 600px;
    }
    
    .admin-table th,
    .admin-table td {
        padding: var(--spacing-sm);
        font-size: 0.75rem;
    }
    
    .admin-table .btn {
        font-size: 0.6875rem;
        padding: 0.125rem 0.375rem;
    }
}

/* Tablet optimizations for admin */
@media (max-width: 992px) {
    .admin-stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .users-grid {
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    }
}

/* Fix for Fixed Header Overlap */
body {
    padding-top: 80px; /* Adjust this value based on your header height */
}

/* Modern Page Title adjustments */
.modern-page-title {
    margin-top: -80px; /* Negative margin to pull it back up */
    padding-top: calc(var(--spacing-2xl) + 80px); /* Add the header height to padding */
}

/* Alternative fix - adjust the page title specifically */
.page-title {
    margin-top: -80px;
    padding-top: calc(var(--spacing-2xl) + 80px);
}

/* For sections that follow the page title */
.subcategories-section,
.labs-section,
.admin-section {
    position: relative;
    z-index: 1;
}

/* Mobile Optimizations */
@media (max-width: 768px) {
    .grid-modern {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .modern-card {
        padding: var(--spacing-md);
    }
    
    .header-modern .container-xl {
        padding: 0 var(--spacing-md);
    }
    
    .header-actions {
        gap: var(--spacing-sm) !important;
    }
    
    .btn-modern {
        padding: var(--spacing-xs) var(--spacing-md);
        font-size: 0.875rem;
    }
    
    .status-indicator {
        font-size: 0.75rem;
        padding: 2px var(--spacing-xs);
    }
    
    /* Stack lab card buttons on mobile */
    .modern-card .d-flex.gap-2 {
        flex-direction: column;
    }
    
    .modern-card .d-flex.gap-2 .flex-fill {
        flex: none;
    }
    
    /* Mobile Lab Card Optimizations */
    .detail-row {
        flex-direction: column;
        gap: var(--spacing-md);
    }
    
    .lab-actions {
        flex-direction: column;
    }
    
    .lab-card-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .time-remaining {
        align-self: flex-start;
    }
    
    .stat-card {
        text-align: center;
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .modern-page-title h1 {
        font-size: 2rem;
        flex-direction: column;
        text-align: center;
        gap: var(--spacing-sm);
    }
    
    /* Mobile Footer Optimizations */
    .footer-top {
        padding: var(--spacing-xl) 0;
    }
    
    .footer-links {
        margin-bottom: var(--spacing-lg);
    }
    
    .footer-legal {
        justify-content: center;
        flex-direction: column;
        gap: var(--spacing-sm);
        text-align: center;
        margin-top: var(--spacing-md);
    }
    
    .social-links {
        justify-content: center;
    }
    
    .scroll-top {
        bottom: 20px;
        right: 20px;
        width: 45px;
        height: 45px;
    }
    
    /* Mobile Catalog Optimizations */
    .subcategories-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .labs-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .lab-meta {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .subcategory-image {
        height: 150px;
    }
    
    .lab-card .lab-name {
        font-size: 1.25rem;
    }
    
    .breadcrumb-nav {
        flex-wrap: wrap;
    }
}

/* Tablet optimizations */
@media (max-width: 992px) {
    .grid-modern {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    }
    
    .sitename {
        font-size: 1.25rem !important;
    }
}

/* Touch improvements */
@media (hover: none) and (pointer: coarse) {
    .modern-card:hover {
        transform: none;
    }
    
    .btn-modern:hover {
        transform: none;
    }
    
    .lab-card:hover {
        transform: none;
    }
    
    .user-card:hover {
        transform: none;
    }
    
    .admin-stat-card:hover {
        transform: none;
    }
    
    /* Larger touch targets */
    .btn-modern {
        min-height: 44px;
    }
    
    .status-indicator {
        min-height: 32px;
    }
    
    .user-actions .btn {
        min-height: 36px;
    }
}