/* Enhanced Mobile Design for LMS */

/* 1. Mobile-First Responsive Design */
@media (max-width: 768px) {
    
    /* Enhanced Mobile Navigation */
    .top-navbar {
        padding: 0;
    }
    
    .navbar-title {
        margin: 10px 15px;
        padding: 12px 18px;
        border-radius: 12px;
    }
    
    .navbar-title h1 {
        font-size: 20px;
        text-align: center;
    }
    
    .navbar-description {
        padding: 8px 15px;
    }
    
    .navbar-description p {
        font-size: 14px;
    }
    
    /* Enhanced Mobile Stats Grid */
    .stats-grid {
        grid-template-columns: 1fr;
        gap: 15px;
        margin: 20px 15px;
    }
    
    .stat-card {
        padding: 20px;
        margin: 0;
        border-radius: 12px;
    }
    
    .stat-icon {
        width: 50px;
        height: 50px;
        font-size: 20px;
        margin-right: 15px;
    }
    
    .stat-number {
        font-size: 24px;
    }
    
    .stat-content h3 {
        font-size: 12px;
    }
    
    /* Enhanced Mobile Tables */
    .table-container {
        margin: 15px;
        border-radius: 12px;
        overflow-x: auto;
    }
    
    .data-table {
        min-width: 600px;
        font-size: 13px;
    }
    
    .data-table th,
    .data-table td {
        padding: 12px 8px;
    }
    
    /* Mobile action buttons optimization */
    .data-table .action-buttons {
        gap: 1px;
        min-width: 100px;
    }
    
    .data-table .action-buttons .btn {
        min-width: 26px;
        height: 24px;
        padding: 3px 4px;
        font-size: 10px;
    }
    
    .data-table .action-buttons .btn i {
        font-size: 10px;
    }
    
    /* Enhanced Mobile Forms */
    .form-container {
        margin: 15px;
        padding: 25px 20px;
        border-radius: 12px;
    }
    
    .form-group input,
    .form-group select,
    .form-group textarea {
        padding: 14px;
        font-size: 16px; /* Prevents zoom on iOS */
        border-radius: 8px;
    }
    
    /* Enhanced Mobile Buttons */
    .btn {
        padding: 14px 20px;
        font-size: 14px;
        border-radius: 8px;
        width: 100%;
        margin-bottom: 10px;
    }
    
    .form-actions {
        flex-direction: column;
        gap: 10px;
    }
    
    /* Enhanced Mobile Page Headers */
    .page-header {
        flex-direction: column;
        align-items: stretch;
        gap: 15px;
        margin: 15px;
    }
    
    .page-header h1 {
        font-size: 24px;
        text-align: center;
    }
    
    /* Enhanced Mobile Modals */
    .modal-content {
        margin: 20px;
        border-radius: 16px;
    }
    
    .modal-header {
        padding: 20px;
        border-radius: 16px 16px 0 0;
    }
    
    .modal-body {
        padding: 20px;
    }
    
    /* Enhanced Mobile Pagination */
    .pagination {
        flex-direction: column;
        gap: 15px;
        padding: 15px;
    }
    
    /* Enhanced Mobile Control Icons */
    .mobile-control-icons {
        display: flex;
        justify-content: center;
        gap: 15px;
        padding: 10px;
    }
    
    .desktop-control-icons {
        display: none;
    }
    
    .control-icon {
        width: 40px;
        height: 40px;
        font-size: 16px;
    }
    
    /* Enhanced Mobile Language Dropdown */
    .language-dropdown {
        width: 100px;
        right: 0;
        left: auto;
    }
    
    /* Enhanced Mobile Login */
    #login {
        padding: 15px;
    }
    
    #login > div {
        padding: 30px 20px;
        border-radius: 16px;
    }
    
    #login h1 {
        font-size: 24px;
        margin-bottom: 25px;
    }
}

/* 2. Tablet Responsive Design */
@media (min-width: 769px) and (max-width: 1024px) {
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
        margin: 20px;
    }
    
    .form-container {
        max-width: 500px;
        margin: 20px auto;
    }
    
    .table-container {
        margin: 20px;
    }
    
    .page-header {
        margin: 20px;
    }
}

/* 3. Large Screen Enhancements */
@media (min-width: 1025px) {
    
    .stats-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 25px;
        margin: 30px;
    }
    
    .form-container {
        max-width: 600px;
        margin: 30px auto;
    }
    
    .table-container {
        margin: 30px;
    }
    
    .page-header {
        margin: 30px;
    }
}

/* 4. Mobile Touch Enhancements */
@media (hover: none) and (pointer: coarse) {
    
    .btn {
        min-height: 44px; /* iOS touch target minimum */
        padding: 12px 20px;
    }
    
    .control-icon {
        min-width: 44px;
        min-height: 44px;
    }
    
    .table-action-btn {
        min-width: 44px;
        min-height: 44px;
        padding: 12px;
    }
    
    .form-group input,
    .form-group select,
    .form-group textarea {
        min-height: 44px;
    }
    
    /* Remove hover effects on touch devices */
    .stat-card:hover,
    .btn:hover,
    .control-icon:hover {
        transform: none !important;
        /* Prevent any movement on mobile */
    }
    
    /* Add touch feedback */
    .btn:active,
    .control-icon:active {
        transform: scale(0.95);
        transition: transform 0.1s;
    }
}

/* 5. Landscape Mobile Optimization */
@media (max-width: 768px) and (orientation: landscape) {
    
    .top-navbar {
        min-height: auto;
    }
    
    .navbar-title {
        padding: 8px 15px;
    }
    
    .navbar-title h1 {
        font-size: 18px;
    }
    
    .navbar-description {
        padding: 5px 15px;
    }
    
    .navbar-description p {
        font-size: 12px;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
        margin: 10px 15px;
    }
    
    .stat-card {
        padding: 15px;
    }
    
    .stat-icon {
        width: 40px;
        height: 40px;
        font-size: 16px;
        margin-right: 10px;
    }
    
    .stat-number {
        font-size: 20px;
    }
}

/* 6. High DPI Display Optimization */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    
    .stat-icon,
    .control-icon,
    .table-action-btn {
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
    }
    
    .top-navbar {
        background-image: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    }
}

/* 7. Accessibility Enhancements */
@media (prefers-reduced-motion: reduce) {
    
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .stat-card:hover,
    .btn:hover,
    .control-icon:hover {
        transform: none;
    }
}

/* 8. Dark Mode Mobile Support */
@media (max-width: 768px) and (prefers-color-scheme: dark) {
    
    .form-container {
        background: #1e293b;
        border-color: #334155;
    }
    
    .stat-card {
        background: #1e293b;
        border-color: #334155;
    }
    
    .table-container {
        background: #1e293b;
        border-color: #334155;
    }
    
    .data-table th {
        background: linear-gradient(135deg, #334155 0%, #475569 100%);
        color: #f8fafc;
    }
    
    .data-table td {
        color: #f8fafc;
        border-color: #334155;
    }
}

/* 9. Mobile Performance Optimizations */
@media (max-width: 768px) {
    
    /* Reduce animations on mobile for better performance */
    .stat-card {
        animation: none;
    }
    
    .data-table tbody tr {
        animation: none;
    }
    
    /* Optimize shadows for mobile */
    .stat-card,
    .table-container,
    .form-container {
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    }
    
    .stat-card:hover {
        /* Very subtle shadow on desktop hover */
        box-shadow: 0 6px 12px rgba(0, 0, 0, 0.1);
        transform: none !important;
    }
}

/* 10. Mobile-Specific Utility Classes */
.mobile-only {
    display: block;
}

.desktop-only {
    display: none;
}

@media (min-width: 769px) {
    .mobile-only {
        display: none;
    }
    
    .desktop-only {
        display: block;
    }
}