/* YouTube tarzı tasarım */

/* Body için navbar padding */
body {
    padding-top: 76px;
}

/* Navbar */
.navbar-brand {
    font-weight: bold;
    font-size: 1.4rem;
}

/* Sidebar */
.sidebar {
    padding: 20px 15px;
    background-color: #f8f9fa;
    border-radius: 8px;
    position: sticky;
    top: 100px;
}

.sidebar-heading {
    color: #495057;
    font-weight: 600;
    margin-bottom: 15px;
    padding-left: 10px;
}

.sidebar .list-group-item {
    border: none;
    background-color: transparent;
    color: #495057;
    font-size: 0.9rem;
    padding: 8px 15px;
    border-radius: 6px;
    margin-bottom: 2px;
    transition: all 0.2s ease;
}

.sidebar .list-group-item:hover {
    background-color: #e9ecef;
    color: #212529;
}

.sidebar .list-group-item.active {
    background-color: #007bff;
    color: white;
}

/* Notebook Cards (YouTube tarzı) */
.notebook-card {
    border: none;
    border-radius: 12px;
    overflow: hidden;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

/* Dinamik arama için geçiş efektleri */
.notebook-item {
    transition: all 0.3s ease;
}

.notebook-item.filtering {
    opacity: 0.5;
    transform: scale(0.95);
}

.notebook-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
}

.notebook-thumbnail {
    position: relative;
    height: 180px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

/* Thumbnail Image Styles */
.thumbnail-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.thumbnail-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.notebook-card:hover .thumbnail-image {
    transform: scale(1.05);
}

.notebook-card:hover .thumbnail-overlay {
    opacity: 1;
}

.thumbnail-placeholder {
    position: relative;
    color: white;
    text-align: center;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.play-overlay {
    position: absolute;
    bottom: 10px;
    right: 10px;
    color: white;
    opacity: 0;
    transition: all 0.3s ease;
}

.notebook-card:hover .play-overlay {
    opacity: 1;
}

.notebook-card:hover .thumbnail-placeholder {
    transform: scale(1.05);
}

.notebook-thumbnail a {
    text-decoration: none;
    color: inherit;
    display: block;
    width: 100%;
    height: 100%;
}

/* Card content */
.notebook-card .card-body {
    padding: 16px;
}

.notebook-card .card-title {
    font-size: 1rem;
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: 8px;
}

.notebook-card .card-title a:hover {
    color: #007bff !important;
}

.notebook-card .card-text {
    font-size: 0.85rem;
    line-height: 1.4;
    margin-bottom: 12px;
}

/* Tags */
.tags .badge {
    font-size: 0.7rem;
    padding: 4px 8px;
    border-radius: 12px;
}

/* Meta info */
.notebook-card small {
    font-size: 0.75rem;
}

/* Ana Arama Bölümü */
.main-search-section {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border-radius: 15px;
    padding: 30px 20px;
    margin-bottom: 30px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

.search-container h3 {
    color: #495057;
    font-weight: 600;
}

.search-input {
    border-radius: 25px 0 0 25px !important;
    border: 2px solid #e9ecef;
    padding: 15px 25px;
    font-size: 1.1rem;
    transition: all 0.3s ease;
}

.search-input:focus {
    border-color: #007bff;
    box-shadow: 0 0 0 0.2rem rgba(0,123,255,0.25);
}

.btn-search {
    border-radius: 0 25px 25px 0 !important;
    padding: 15px 30px;
    font-size: 1.1rem;
    font-weight: 600;
    border: 2px solid #007bff;
    transition: all 0.3s ease;
}

.btn-search:hover {
    background-color: #0056b3;
    border-color: #0056b3;
    transform: translateY(-1px);
}

.popular-searches {
    margin-top: 15px;
}

.popular-searches .search-suggestion {
    text-decoration: none;
    padding: 5px 12px;
    border-radius: 15px;
    transition: all 0.2s ease;
    border: 1px solid #dee2e6;
    margin: 2px;
    display: inline-block;
}

.popular-searches .search-suggestion:hover {
    background-color: #007bff !important;
    color: white !important;
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(0,123,255,0.3);
}

/* Search results info */
.search-results-info {
    margin-bottom: 20px;
}

.search-results-info .alert {
    border-radius: 10px;
    border: none;
    background-color: #e3f2fd;
    border-left: 4px solid #2196f3;
}

/* Upload form */
.tag-suggestions .tag-suggestion {
    cursor: pointer;
    transition: all 0.2s ease;
}

.tag-suggestions .tag-suggestion:hover {
    background-color: #007bff !important;
    transform: scale(1.05);
}

/* Empty state */
.fa-5x {
    font-size: 4rem !important;
}

/* Admin cards */
.card-header {
    border-bottom: 1px solid rgba(0,0,0,0.125);
}

/* Responsive */
@media (max-width: 768px) {
    .container-fluid {
        padding-left: 15px;
        padding-right: 15px;
    }
    
    .notebook-thumbnail {
        height: 150px;
    }
    
    .sidebar {
        margin-bottom: 20px;
        position: static;
    }
    
    /* Mobil arama bölümü */
    .main-search-section {
        padding: 20px 15px;
        margin-bottom: 20px;
    }
    
    .search-container h3 {
        font-size: 1.3rem;
        margin-bottom: 20px;
    }
    
    .search-input, .btn-search {
        font-size: 1rem;
        padding: 12px 20px;
    }
    
    .popular-searches {
        text-align: left;
    }
    
    .popular-searches .search-suggestion {
        display: block;
        margin-bottom: 5px;
        width: fit-content;
    }
}

/* Dark Mode Styles */
.dark-mode {
    background-color: #0f172a !important;
    color: #f1f5f9 !important;
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* Dark mode navbar */
.dark-mode .navbar {
    background-color: #1e293b !important;
    border-bottom: 1px solid #334155 !important;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1) !important;
}

.dark-mode .navbar-brand,
.dark-mode .navbar-nav .nav-link {
    color: #f1f5f9 !important;
    font-weight: 500 !important;
}

.dark-mode .navbar-nav .nav-link:hover {
    color: #38bdf8 !important;
    transition: color 0.2s ease !important;
}

.dark-mode .btn-outline-light {
    border-color: #475569 !important;
    color: #f1f5f9 !important;
    background-color: transparent !important;
}

.dark-mode .btn-outline-light:hover {
    background-color: #475569 !important;
    border-color: #64748b !important;
    color: #ffffff !important;
}

/* Dark mode sidebar */
.dark-mode .sidebar {
    background-color: #1e293b !important;
    border: 1px solid #334155 !important;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1) !important;
}

.dark-mode .sidebar-heading {
    color: #38bdf8 !important;
    font-weight: 600 !important;
}

.dark-mode .sidebar .list-group-item {
    background-color: transparent !important;
    color: #cbd5e1 !important;
    border: none !important;
    border-radius: 6px !important;
    margin: 2px 0 !important;
}

.dark-mode .sidebar .list-group-item:hover {
    background-color: #334155 !important;
    color: #f1f5f9 !important;
    transform: translateX(4px) !important;
    transition: all 0.2s ease !important;
}

.dark-mode .sidebar .list-group-item.active {
    background-color: #0f766e !important;
    color: #f0fdfa !important;
    border-left: 3px solid #14b8a6 !important;
}

/* Dark mode cards */
.dark-mode .notebook-card {
    background-color: #1e293b !important;
    border: 1px solid #334155 !important;
    color: #f1f5f9 !important;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1) !important;
}

.dark-mode .notebook-card:hover {
    border-color: #475569 !important;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.2) !important;
}

.dark-mode .card-body {
    background-color: #1e293b !important;
    color: #f1f5f9 !important;
}

.dark-mode .card-title a {
    color: #f1f5f9 !important;
    font-weight: 600 !important;
}

.dark-mode .card-title a:hover {
    color: #38bdf8 !important;
}

.dark-mode .card-text {
    color: #cbd5e1 !important;
    line-height: 1.5 !important;
}

/* Dark mode search section */
.dark-mode .main-search-section {
    background: linear-gradient(135deg, #1e293b 0%, #334155 100%) !important;
    border: 1px solid #475569 !important;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1) !important;
}

.dark-mode .search-container h3 {
    color: #f1f5f9 !important;
    font-weight: 600 !important;
}

.dark-mode .search-input {
    background-color: #0f172a !important;
    border-color: #475569 !important;
    color: #f1f5f9 !important;
}

.dark-mode .search-input:focus {
    background-color: #0f172a !important;
    border-color: #14b8a6 !important;
    color: #f1f5f9 !important;
    box-shadow: 0 0 0 0.2rem rgba(20, 184, 166, 0.25) !important;
}

.dark-mode .search-input::placeholder {
    color: #64748b !important;
}

.dark-mode .btn-search {
    background-color: #14b8a6 !important;
    border-color: #14b8a6 !important;
    color: #ffffff !important;
    font-weight: 600 !important;
}

.dark-mode .btn-search:hover {
    background-color: #0f766e !important;
    border-color: #0f766e !important;
}

/* Dark mode search suggestions */
.dark-mode .search-suggestion {
    background-color: #334155 !important;
    border-color: #475569 !important;
    color: #cbd5e1 !important;
    border-radius: 20px !important;
}

.dark-mode .search-suggestion:hover {
    background-color: #14b8a6 !important;
    color: #ffffff !important;
    transform: translateY(-1px) !important;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.2) !important;
}

/* Dark mode alerts */
.dark-mode .alert {
    background-color: #1e293b !important;
    border-color: #334155 !important;
    color: #f1f5f9 !important;
    border-radius: 8px !important;
}

.dark-mode .alert-info {
    background-color: #0c4a6e !important;
    border-color: #0284c7 !important;
    color: #bae6fd !important;
}

.dark-mode .alert-success {
    background-color: #064e3b !important;
    border-color: #059669 !important;
    color: #a7f3d0 !important;
}

.dark-mode .alert-warning {
    background-color: #451a03 !important;
    border-color: #d97706 !important;
    color: #fed7aa !important;
}

.dark-mode .alert-danger {
    background-color: #7f1d1d !important;
    border-color: #dc2626 !important;
    color: #fecaca !important;
}

/* Dark mode badges */
.dark-mode .badge {
    background-color: #475569 !important;
    color: #f1f5f9 !important;
    font-weight: 500 !important;
    border-radius: 12px !important;
}

.dark-mode .badge.bg-primary {
    background-color: #0ea5e9 !important;
    color: #ffffff !important;
}

.dark-mode .badge.bg-secondary {
    background-color: #64748b !important;
    color: #f1f5f9 !important;
}

.dark-mode .badge.bg-success {
    background-color: #10b981 !important;
    color: #ffffff !important;
}

.dark-mode .badge.bg-warning {
    background-color: #f59e0b !important;
    color: #ffffff !important;
}

.dark-mode .badge.bg-danger {
    background-color: #ef4444 !important;
    color: #ffffff !important;
}

.dark-mode .badge.bg-info {
    background-color: #06b6d4 !important;
    color: #ffffff !important;
}

/* Dark mode tables */
.dark-mode .table {
    background-color: #1e1e1e !important;
    color: #e0e0e0 !important;
}

.dark-mode .table th {
    background-color: #2a2a2a !important;
    border-color: #444 !important;
    color: #e0e0e0 !important;
}

.dark-mode .table td {
    border-color: #444 !important;
    color: #e0e0e0 !important;
}

.dark-mode .table-striped tbody tr:nth-of-type(odd) {
    background-color: #252525 !important;
}

/* Dark mode forms */
.dark-mode .form-control {
    background-color: #1e293b !important;
    border-color: #475569 !important;
    color: #f1f5f9 !important;
    border-radius: 8px !important;
}

.dark-mode .form-control:focus {
    background-color: #1e293b !important;
    border-color: #14b8a6 !important;
    color: #f1f5f9 !important;
    box-shadow: 0 0 0 0.2rem rgba(20, 184, 166, 0.25) !important;
}

.dark-mode .form-control::placeholder {
    color: #64748b !important;
}

.dark-mode .form-label {
    color: #f1f5f9 !important;
    font-weight: 500 !important;
}

.dark-mode .form-select {
    background-color: #1e293b !important;
    border-color: #475569 !important;
    color: #f1f5f9 !important;
    border-radius: 8px !important;
}

/* Dark mode buttons */
.dark-mode .btn-primary {
    background-color: #0ea5e9 !important;
    border-color: #0ea5e9 !important;
    color: #ffffff !important;
    font-weight: 500 !important;
    border-radius: 8px !important;
}

.dark-mode .btn-primary:hover {
    background-color: #0284c7 !important;
    border-color: #0284c7 !important;
    transform: translateY(-1px) !important;
    box-shadow: 0 4px 12px rgba(14, 165, 233, 0.4) !important;
}

.dark-mode .btn-secondary {
    background-color: #64748b !important;
    border-color: #64748b !important;
    color: #ffffff !important;
    border-radius: 8px !important;
}

.dark-mode .btn-secondary:hover {
    background-color: #475569 !important;
    border-color: #475569 !important;
}

.dark-mode .btn-success {
    background-color: #10b981 !important;
    border-color: #10b981 !important;
    color: #ffffff !important;
    border-radius: 8px !important;
}

.dark-mode .btn-success:hover {
    background-color: #059669 !important;
    border-color: #059669 !important;
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.4) !important;
}

.dark-mode .btn-danger {
    background-color: #ef4444 !important;
    border-color: #ef4444 !important;
    color: #ffffff !important;
    border-radius: 8px !important;
}

.dark-mode .btn-danger:hover {
    background-color: #dc2626 !important;
    border-color: #dc2626 !important;
    box-shadow: 0 4px 12px rgba(239, 68, 68, 0.4) !important;
}

.dark-mode .btn-warning {
    background-color: #f59e0b !important;
    border-color: #f59e0b !important;
    color: #ffffff !important;
    border-radius: 8px !important;
}

.dark-mode .btn-warning:hover {
    background-color: #d97706 !important;
    border-color: #d97706 !important;
}

.dark-mode .btn-info {
    background-color: #06b6d4 !important;
    border-color: #06b6d4 !important;
    color: #ffffff !important;
    border-radius: 8px !important;
}

.dark-mode .btn-light {
    background-color: #f1f5f9 !important;
    border-color: #f1f5f9 !important;
    color: #0f172a !important;
    border-radius: 8px !important;
}

.dark-mode .btn-dark {
    background-color: #0f172a !important;
    border-color: #0f172a !important;
    color: #f1f5f9 !important;
    border-radius: 8px !important;
}

/* Dark mode footer */
.dark-mode footer {
    background: linear-gradient(135deg, #1e293b 0%, #334155 100%) !important;
    border-top: 1px solid #475569 !important;
    box-shadow: 0 -4px 6px -1px rgba(0, 0, 0, 0.1) !important;
}

/* Dark mode modal */
.dark-mode .modal-content {
    background-color: #1e1e1e !important;
    border-color: #444 !important;
}

.dark-mode .modal-header {
    border-bottom-color: #444 !important;
}

.dark-mode .modal-footer {
    border-top-color: #444 !important;
}

.dark-mode .modal-title {
    color: #e0e0e0 !important;
}

/* Dark mode scrollbar */
.dark-mode ::-webkit-scrollbar-track {
    background: #2a2a2a !important;
}

.dark-mode ::-webkit-scrollbar-thumb {
    background: #555 !important;
}

.dark-mode ::-webkit-scrollbar-thumb:hover {
    background: #666 !important;
}

/* Dark mode specific elements */
.dark-mode .bg-light {
    background-color: #2a2a2a !important;
}

.dark-mode .bg-white {
    background-color: #1e1e1e !important;
}

.dark-mode .text-dark {
    color: #e0e0e0 !important;
}

.dark-mode .text-muted {
    color: #b0b0b0 !important;
}

.dark-mode .border {
    border-color: #444 !important;
}

.dark-mode hr {
    border-color: #444 !important;
}

/* Dark mode transitions */
.dark-mode * {
    transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease !important;
}

/* Dark mode - Notebook content */
.dark-mode .notebook-content {
    background-color: #0f172a !important;
    color: #f1f5f9 !important;
    padding: 24px !important;
    border-radius: 0 !important;
}

/* Dark mode - Notebook cells */
.dark-mode .notebook-content .jp-Cell {
    background-color: #0f172a !important;
    color: #f1f5f9 !important;
    border: none !important;
    outline: none !important;
    border-radius: 0 !important;
    margin-bottom: 15px !important;
    padding: 0 !important;
    box-shadow: none !important;
}

.dark-mode .notebook-content .jp-InputArea {
    background-color: #0f172a !important;
    border-radius: 0 !important;
    border: 1px solid #334155 !important;
    outline: none !important;
    padding: 0 !important;
    margin: 0 !important;
}

.dark-mode .notebook-content .jp-OutputArea {
    background-color: #0f172a !important;
    border: none !important;
    outline: none !important;
    border-radius: 0 !important;
    margin: 0 !important;
    padding: 0 !important;
}

/* Dark mode - Code cells */
.dark-mode .notebook-content pre {
    background-color: #0f172a !important;
    color: #f1f5f9 !important;
    border: none !important;
    border-radius: 0 !important;
    padding: 0 !important;
    font-family: 'JetBrains Mono', 'Fira Code', monospace !important;
    line-height: 1.5 !important;
}

.dark-mode .notebook-content .jp-InputArea pre {
    background-color: #0f172a !important;
    color: #f1f5f9 !important;
}

.dark-mode .notebook-content .jp-InputPrompt {
    background-color: #0f172a !important;
    color: #14b8a6 !important;
    font-weight: 700 !important;
    border-radius: 6px !important;
    padding: 6px 10px !important;
}

/* Dark mode - Markdown content */
.dark-mode .notebook-content .jp-MarkdownOutput,
.dark-mode .notebook-content .jp-RenderedMarkdown,
.dark-mode .notebook-content .text_cell_render,
.dark-mode .notebook-content .rendered_html {
    background-color: transparent !important;
    color: #f1f5f9 !important;
    padding: 0 !important;
    border-radius: 0 !important;
    border: none !important;
}

/* Dark mode - Headings in notebook */
.dark-mode .notebook-content h1 {
    color: #38bdf8 !important;
    border-bottom: 2px solid #38bdf8 !important;
    font-weight: 700 !important;
    margin-bottom: 16px !important;
}

.dark-mode .notebook-content h2 {
    color: #14b8a6 !important;
    border-bottom: 1px solid #14b8a6 !important;
    font-weight: 600 !important;
    margin-bottom: 14px !important;
}

.dark-mode .notebook-content h3 {
    color: #06b6d4 !important;
    font-weight: 600 !important;
    margin-bottom: 12px !important;
}

.dark-mode .notebook-content h4,
.dark-mode .notebook-content h5,
.dark-mode .notebook-content h6 {
    color: #22d3ee !important;
    font-weight: 500 !important;
    margin-bottom: 10px !important;
}

/* Dark mode - Paragraphs and text */
.dark-mode .notebook-content p,
.dark-mode .notebook-content li,
.dark-mode .notebook-content div {
    color: #d1d5db !important;
    line-height: 1.6 !important;
}

/* Dark mode - Links in notebook */
.dark-mode .notebook-content a {
    color: #60a5fa !important;
    text-decoration: underline !important;
}

.dark-mode .notebook-content a:hover {
    color: #93c5fd !important;
    text-decoration: none !important;
}

/* Dark mode - Tables in notebook */
.dark-mode .notebook-content table {
    background-color: #18181b !important;
    color: #e4e4e7 !important;
    border: 1px solid #3f3f46 !important;
    border-radius: 8px !important;
    overflow: hidden !important;
}

.dark-mode .notebook-content th,
.dark-mode .notebook-content td {
    background-color: #18181b !important;
    color: #e4e4e7 !important;
    border-color: #3f3f46 !important;
    padding: 12px !important;
}

.dark-mode .notebook-content thead th {
    background-color: #27272a !important;
    color: #f59e0b !important;
    font-weight: 600 !important;
}

/* Dark mode - Table of Contents Sidebar */
.dark-mode .toc-sidebar {
    background: linear-gradient(135deg, #1e293b 0%, #334155 100%) !important;
    border: 1px solid #475569 !important;
    box-shadow: 0 10px 25px rgba(0,0,0,0.3) !important;
    backdrop-filter: blur(10px) !important;
}

.dark-mode .toc-header h6 {
    color: #38bdf8 !important;
    font-weight: 700 !important;
    text-transform: uppercase !important;
    letter-spacing: 0.5px !important;
}

.dark-mode .toc-header .btn-outline-light {
    border-color: #475569 !important;
    color: #cbd5e1 !important;
    background-color: transparent !important;
    border-radius: 6px !important;
}

.dark-mode .toc-header .btn-outline-light:hover {
    background-color: #475569 !important;
    border-color: #64748b !important;
    color: #f1f5f9 !important;
    transform: scale(1.05) !important;
}

/* Dark mode - TOC list items */
.dark-mode .toc-list {
    background-color: transparent !important;
}

.dark-mode .toc-list li {
    color: #cbd5e1 !important;
    margin: 6px 0 !important;
}

.dark-mode .toc-list a {
    color: #cbd5e1 !important;
    text-decoration: none !important;
    padding: 10px 14px !important;
    border-radius: 8px !important;
    display: block !important;
    transition: all 0.3s ease !important;
    border-left: 3px solid transparent !important;
}

.dark-mode .toc-list a:hover {
    color: #f1f5f9 !important;
    background-color: #334155 !important;
    transform: translateX(6px) !important;
    border-left-color: #14b8a6 !important;
}

.dark-mode .toc-list a.active {
    color: #f0fdfa !important;
    background-color: #0f766e !important;
    border-left-color: #14b8a6 !important;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1) !important;
}

/* Dark mode - TOC loading */
.dark-mode .toc-loading {
    color: #9ca3af !important;
}

/* Dark mode - Mobile TOC */
.dark-mode .mobile-toc-modal {
    background-color: rgba(0, 0, 0, 0.8) !important;
}

.dark-mode .mobile-toc-content {
    background-color: #3a3a3a !important;
    border: 1px solid #555 !important;
}

.dark-mode .mobile-toc-header {
    background-color: #4a4a4a !important;
    border-bottom: 1px solid #555 !important;
    color: #e0e0e0 !important;
}

.dark-mode .mobile-toc-header h6 {
    color: #e0e0e0 !important;
}

.dark-mode .mobile-toc-header .btn-outline-secondary {
    border-color: #555 !important;
    color: #e0e0e0 !important;
}

.dark-mode .mobile-toc-header .btn-outline-secondary:hover {
    background-color: #333 !important;
    border-color: #666 !important;
}

/* Dark mode - Notebook metadata and actions */
.dark-mode .notebook-meta {
    background-color: #1e1e1e !important;
    border: 1px solid #444 !important;
    color: #e0e0e0 !important;
}

.dark-mode .notebook-meta .badge {
    background-color: #444 !important;
    color: #e0e0e0 !important;
}

/* Dark mode - Like/Favorite buttons */
.dark-mode .btn-like,
.dark-mode .btn-favorite {
    background-color: #2a2a2a !important;
    border-color: #444 !important;
    color: #e0e0e0 !important;
}

.dark-mode .btn-like:hover,
.dark-mode .btn-favorite:hover {
    background-color: #333 !important;
    border-color: #666 !important;
}

.dark-mode .btn-like.liked {
    background-color: #dc3545 !important;
    border-color: #dc3545 !important;
    color: #fff !important;
}

.dark-mode .btn-favorite.favorited {
    background-color: #ffc107 !important;
    border-color: #ffc107 !important;
    color: #000 !important;
}

/* Dark mode - Comments section */
.dark-mode .comments-section {
    background-color: #1e1e1e !important;
    border: 1px solid #444 !important;
}

.dark-mode .comment-item {
    background-color: #2a2a2a !important;
    border: 1px solid #444 !important;
    color: #e0e0e0 !important;
}

.dark-mode .comment-author {
    color: #4dabf7 !important;
}

.dark-mode .comment-content {
    color: #e0e0e0 !important;
}

.dark-mode .comment-form textarea {
    background-color: #2a2a2a !important;
    border-color: #444 !important;
    color: #e0e0e0 !important;
}

.dark-mode .comment-form textarea:focus {
    background-color: #2a2a2a !important;
    border-color: #0d6efd !important;
    color: #e0e0e0 !important;
    box-shadow: 0 0 0 0.2rem rgba(13,110,253,0.25) !important;
}

.dark-mode .comment-form textarea::placeholder {
    color: #888 !important;
}

/* Dark mode - Code highlighting */
.dark-mode .notebook-content .highlight {
    background-color: #0f172a !important;
    border-radius: 0 !important;
    border: none !important;
    outline: none !important;
    margin: 0 !important;
    padding: 0 !important;
}

.dark-mode .notebook-content .highlight pre {
    background-color: #0f172a !important;
    margin: 0 !important;
    border: none !important;
    outline: none !important;
    padding: 0 !important;
}

/* Dark mode - Python syntax highlighting */
.dark-mode .notebook-content .highlight .k { color: #c792ea !important; } /* Keywords */
.dark-mode .notebook-content .highlight .kn { color: #c792ea !important; } /* Keyword.Namespace */
.dark-mode .notebook-content .highlight .kc { color: #f78c6c !important; } /* Keyword.Constant */
.dark-mode .notebook-content .highlight .s { color: #c3e88d !important; } /* String */
.dark-mode .notebook-content .highlight .s2 { color: #c3e88d !important; } /* String.Double */
.dark-mode .notebook-content .highlight .s1 { color: #c3e88d !important; } /* String.Single */
.dark-mode .notebook-content .highlight .mi { color: #f78c6c !important; } /* Number.Integer */
.dark-mode .notebook-content .highlight .mf { color: #f78c6c !important; } /* Number.Float */
.dark-mode .notebook-content .highlight .nb { color: #82aaff !important; } /* Name.Builtin */
.dark-mode .notebook-content .highlight .nf { color: #82aaff !important; } /* Name.Function */
.dark-mode .notebook-content .highlight .nc { color: #ffcb6b !important; } /* Name.Class */
.dark-mode .notebook-content .highlight .nn { color: #ffcb6b !important; } /* Name.Namespace */
.dark-mode .notebook-content .highlight .c1 { color: #546e7a !important; font-style: italic !important; } /* Comment */
.dark-mode .notebook-content .highlight .cm { color: #546e7a !important; font-style: italic !important; } /* Comment.Multiline */
.dark-mode .notebook-content .highlight .o { color: #89ddff !important; } /* Operator */
.dark-mode .notebook-content .highlight .p { color: #89ddff !important; } /* Punctuation */

/* Dark mode - Output cells */
.dark-mode .notebook-content .jp-OutputArea-output {
    background-color: #0f172a !important;
    color: #e4e4e7 !important;
    border: none !important;
    border-radius: 0 !important;
    padding: 0 !important;
    margin-top: 0 !important;
}

.dark-mode .notebook-content .jp-OutputArea-executeResult {
    background-color: #0f172a !important;
}

/* Dark mode - Prompts */
.dark-mode .notebook-content .jp-InputPrompt {
    color: #10b981 !important;
    font-weight: 600 !important;
    background-color: #18181b !important;
    padding: 4px 8px !important;
    border-radius: 4px !important;
    border: 1px solid #3f3f46 !important;
}

.dark-mode .notebook-content .jp-OutputPrompt {
    color: #f59e0b !important;
    font-weight: 600 !important;
}

/* Jupyter Notebook - Hide only duplicate input prompts, keep content */
.notebook-content .jp-InputPrompt {
    display: none !important;
}

.notebook-content .jp-OutputPrompt {
    display: none !important;
}

/* Keep cell content but remove extra borders */
.notebook-content .jp-Cell {
    border: none !important;
    background: transparent !important;
    margin-bottom: 1rem !important;
}

/* Keep input areas but remove black backgrounds */
.notebook-content .jp-Cell-inputArea {
    background: transparent !important;
    border: none !important;
}

/* Keep output areas visible */
.notebook-content .jp-OutputArea {
    background: transparent !important;
    border: none !important;
    margin: 0 !important;
    padding: 0 !important;
}

.notebook-content .jp-OutputArea-output {
    background: transparent !important;
    border: none !important;
    margin: 0 !important;
    padding: 0 !important;
}

/* Loading states */
.spinner-border {
    width: 2rem;
    height: 2rem;
}

/* Table styling */
.table-responsive {
    border-radius: 8px;
    overflow: hidden;
}

.table th {
    background-color: #f8f9fa;
    border-top: none;
    font-weight: 600;
}

/* Animation for cards */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.notebook-card {
    animation: fadeInUp 0.6s ease forwards;
}

.notebook-card:nth-child(1) { animation-delay: 0.1s; }
.notebook-card:nth-child(2) { animation-delay: 0.2s; }
.notebook-card:nth-child(3) { animation-delay: 0.3s; }
.notebook-card:nth-child(4) { animation-delay: 0.4s; }

/* Button improvements */
.btn {
    border-radius: 6px;
    font-weight: 500;
    transition: all 0.2s ease;
}

.btn:hover {
    transform: translateY(-1px);
}

/* Footer */
footer {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%) !important;
}

/* Scrollbar styling */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb {
    background: #c1c1c1;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #a8a8a8;
}