/* CSS Variables for Theming */
:root {
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fa;
    --bg-tertiary: #e9ecef;
    --text-primary: #212529;
    --text-secondary: #6c757d;
    --border-color: #dee2e6;
    --accent-color: #17a2b8;
    --accent-hover: #138496;
    --left-sidebar-width: 280px;
    --right-sidebar-width: 260px;
    --topnav-height: 60px;
    --danger-color: #dc3545;
    --success-color: #198754;
    --shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 4px 12px rgba(0, 0, 0, 0.15);
}

[data-theme="dark"] {
    --bg-primary: #1a1a1a;
    --bg-secondary: #2d2d2d;
    --bg-tertiary: #3a3a3a;
    --text-primary: #e9ecef;
    --text-secondary: #adb5bd;
    --border-color: #495057;
    --accent-color: #20c997;
    --accent-hover: #1ab386;
    --shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 4px 12px rgba(0, 0, 0, 0.4);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    overflow-x: hidden;
    transition: background-color 0.3s, color 0.3s;
}

/* Top Navigation */
.top-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--topnav-height);
    background-color: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 20px;
    z-index: 1000;
    box-shadow: var(--shadow);
}

.nav-left {
    display: flex;
    align-items: center;
    gap: 15px;
}

.wiki-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
}

.sidebar-toggle {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--text-primary);
    cursor: pointer;
    padding: 8px;
    border-radius: 4px;
    transition: background-color 0.2s;
}

.sidebar-toggle:hover {
    background-color: var(--bg-tertiary);
}

.search-container {
    display: flex;
    align-items: center;
    gap: 8px;
    flex: 1;
    max-width: 500px;
    margin: 0 20px;
}

.search-input {
    flex: 1;
    padding: 8px 16px;
    border: 1px solid var(--border-color);
    border-radius: 20px;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-size: 0.95rem;
    outline: none;
    transition: border-color 0.2s;
}

.search-input:focus {
    border-color: var(--accent-color);
}

.search-btn {
    background-color: var(--accent-color);
    color: white;
    border: none;
    padding: 8px 16px;
    border-radius: 20px;
    cursor: pointer;
    transition: background-color 0.2s;
}

.search-btn:hover {
    background-color: var(--accent-hover);
}

.nav-right {
    display: flex;
    align-items: center;
    gap: 10px;
}

.theme-toggle,
.lock-btn,
.settings-btn {
    background: none;
    border: none;
    font-size: 1.3rem;
    color: var(--text-primary);
    cursor: pointer;
    padding: 8px;
    border-radius: 4px;
    transition: background-color 0.2s;
}

.theme-toggle:hover,
.lock-btn:hover,
.settings-btn:hover {
    background-color: var(--bg-tertiary);
}

/* Login Screen */
.login-screen {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, var(--accent-color) 0%, var(--accent-hover) 100%);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 10000;
}

.login-container {
    background: var(--bg-primary);
    border-radius: 12px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    padding: 40px;
    width: 100%;
    max-width: 400px;
    animation: fadeInUp 0.4s ease;
}

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

.login-header {
    text-align: center;
    margin-bottom: 30px;
}

.login-header i {
    font-size: 3rem;
    color: var(--accent-color);
    margin-bottom: 15px;
}

.login-header h1 {
    font-size: 1.8rem;
    color: var(--text-primary);
    margin: 0;
}

.login-body {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.login-input {
    width: 100%;
    padding: 15px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    background: var(--bg-secondary);
    color: var(--text-primary);
    outline: none;
    transition: border-color 0.2s;
}

.login-input:focus {
    border-color: var(--accent-color);
}

.login-error {
    color: #dc3545;
    font-size: 0.9rem;
    margin: 0;
    display: none;
    text-align: center;
}

.login-btn {
    width: 100%;
    padding: 15px;
    background: var(--accent-color);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.login-btn:hover {
    background: var(--accent-hover);
}

.login-btn i {
    font-size: 1.2rem;
}

/* Search Overlay */
.search-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 2000;
    display: none;
    align-items: flex-start;
    justify-content: center;
    padding-top: 80px;
}

.search-overlay.active {
    display: flex;
}

.search-results-container {
    background-color: var(--bg-primary);
    border-radius: 8px;
    box-shadow: var(--shadow-lg);
    width: 90%;
    max-width: 700px;
    max-height: 80vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.search-results-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
    border-bottom: 1px solid var(--border-color);
}

.search-results-header h2 {
    font-size: 1.3rem;
    font-weight: 600;
}

.close-search {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--text-primary);
    cursor: pointer;
    padding: 4px;
    border-radius: 4px;
    transition: background-color 0.2s;
}

.close-search:hover {
    background-color: var(--bg-tertiary);
}

.search-results {
    overflow-y: auto;
    padding: 20px;
}

.search-result-item {
    padding: 15px;
    border-bottom: 1px solid var(--border-color);
    cursor: pointer;
    transition: background-color 0.2s;
}

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

.search-result-item:last-child {
    border-bottom: none;
}

.search-result-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--accent-color);
    margin-bottom: 8px;
}

.search-result-snippet {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.5;
}

.search-result-snippet mark {
    background-color: #fff3cd;
    color: #000;
    padding: 2px 4px;
    border-radius: 2px;
}

[data-theme="dark"] .search-result-snippet mark {
    background-color: #664d03;
    color: #fff;
}

.no-results {
    text-align: center;
    padding: 40px 20px;
    color: var(--text-secondary);
}

/* Sidebars */
.sidebar {
    position: fixed;
    top: var(--topnav-height);
    height: calc(100vh - var(--topnav-height));
    background-color: var(--bg-secondary);
    overflow-y: auto;
    transition: transform 0.3s;
    z-index: 900;
}

.left-sidebar {
    left: 0;
    width: var(--left-sidebar-width);
    border-right: 1px solid var(--border-color);
}

.left-sidebar.collapsed {
    transform: translateX(-100%);
}

.right-sidebar {
    right: 0;
    width: var(--right-sidebar-width);
    border-left: 1px solid var(--border-color);
}

.right-sidebar.collapsed {
    transform: translateX(100%);
}

.sidebar-header {
    padding: 20px;
    border-bottom: 1px solid var(--border-color);
}

.sidebar-header h2 {
    font-size: 1.2rem;
    margin-bottom: 15px;
    flex: 1;
}

.sidebar-actions {
    display: flex;
    gap: 8px;
    width: 100%;
}

.new-item-btn {
    flex: 1;
    padding: 10px 12px;
    background-color: var(--accent-color);
    color: white;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 500;
    transition: background-color 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
}

.new-item-btn:hover {
    background-color: var(--accent-hover);
}

.new-item-btn i {
    font-size: 0.9rem;
}

/* Pinned Index */
.index-pinned {
    padding: 12px 15px;
    border-bottom: 1px solid var(--border-color);
}

.pinned-index-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    background-color: var(--bg-secondary);
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s;
    color: var(--text-primary);
    font-weight: 500;
    border-left: 3px solid var(--accent-color);
}

.pinned-index-item:hover {
    background-color: var(--bg-tertiary);
    transform: translateX(2px);
}

.pinned-index-item.active {
    background-color: var(--accent-color);
    color: white;
}

.pinned-index-item i {
    font-size: 1rem;
    color: var(--accent-color);
}

.pinned-index-item.active i {
    color: white;
}

.right-sidebar .sidebar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.sidebar-toggle-right {
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.2rem;
    cursor: pointer;
    padding: 4px;
    border-radius: 4px;
    transition: background-color 0.2s, transform 0.3s;
}

.sidebar-toggle-right:hover {
    background-color: var(--bg-tertiary);
}

.right-sidebar.collapsed .sidebar-toggle-right i {
    transform: rotate(180deg);
}

/* Right Sidebar Expand Button */
.sidebar-expand-btn {
    position: fixed;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    background-color: var(--accent-color);
    color: white;
    border: none;
    border-radius: 8px 0 0 8px;
    padding: 12px 16px;
    cursor: pointer;
    box-shadow: var(--shadow-lg);
    z-index: 800;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    font-size: 0.85rem;
    transition: all 0.3s;
    writing-mode: vertical-rl;
    text-orientation: mixed;
}

/* Mobile Sidebar Overlay */
.sidebar-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: transparent;
    z-index: 999;
    display: none;
    pointer-events: none;
}

.sidebar-overlay.active {
    display: block;
    pointer-events: auto;
}

.sidebar-expand-btn:hover {
    background-color: var(--accent-hover);
    right: 0;
}

.sidebar-expand-btn i {
    font-size: 1.2rem;
    writing-mode: horizontal-tb;
}

.sidebar-expand-btn span {
    font-weight: 500;
}

.new-page-btn {
    width: 100%;
    padding: 10px 15px;
    background-color: var(--accent-color);
    color: white;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.95rem;
    font-weight: 500;
    transition: background-color 0.2s;
}

.new-page-btn:hover {
    background-color: var(--accent-hover);
}

.page-tree {
    padding: 10px;
}

.tree-item {
    margin: 4px 0;
}

.tree-item-header {
    display: flex;
    align-items: center;
    padding: 8px 10px;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.2s;
    color: var(--text-primary);
    text-decoration: none;
    position: relative;
}

.tree-item-header:hover {
    background-color: var(--bg-tertiary);
}

.tree-item-header.active {
    background-color: var(--accent-color);
    color: white;
}

.tree-item-header.dragging {
    opacity: 0.5;
    background-color: var(--bg-tertiary);
}

.tree-item-header.drag-over {
    background-color: var(--accent-color);
    color: white;
}

.tree-item-header.drag-over-bottom {
    border-bottom: 3px solid var(--accent-color);
}

.tree-item-header.drag-over-top {
    border-top: 3px solid var(--accent-color);
}

.tree-toggle {
    margin-right: 6px;
    font-size: 0.8rem;
    transition: transform 0.2s;
    min-width: 12px;
}

.tree-toggle.expanded {
    transform: rotate(90deg);
}

.tree-item-icon {
    margin-right: 6px;
    font-size: 0.9rem;
    min-width: 14px;
}

.tree-item-icon.folder {
    color: #ffc107;
}

.tree-item-icon.page {
    color: var(--text-secondary);
}

.tree-item-title {
    flex: 1;
    font-size: 0.95rem;
}

.tree-item-menu {
    background: none;
    border: none;
    color: var(--text-secondary);
    padding: 4px 8px;
    cursor: pointer;
    border-radius: 4px;
    opacity: 0;
    transition: opacity 0.2s, background-color 0.2s;
    font-size: 0.9rem;
}

.tree-item-header:hover .tree-item-menu {
    opacity: 1;
}

.tree-item-menu:hover {
    background-color: var(--hover-color);
    color: var(--text-primary);
}

/* Always show kebab menu on mobile */
@media (max-width: 768px) {
    .tree-item-menu {
        opacity: 0.7;
    }
}

.tree-children {
    margin-left: 20px;
    display: none;
}

.tree-children.expanded {
    display: block;
}

/* Main Content */
.main-content {
    margin-left: var(--left-sidebar-width);
    margin-right: var(--right-sidebar-width);
    margin-top: var(--topnav-height);
    padding: 30px;
    min-height: calc(100vh - var(--topnav-height));
    transition: margin-left 0.3s, margin-right 0.3s;
}

.main-content.left-expanded {
    margin-left: 0;
}

.main-content.right-expanded {
    margin-right: 0;
}

.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    padding-bottom: 15px;
    border-bottom: 1px solid var(--border-color);
}

.page-title {
    font-size: 2rem;
    font-weight: 600;
}

.page-actions {
    display: flex;
    gap: 10px;
}

.action-btn {
    padding: 8px 16px;
    background-color: var(--accent-color);
    color: white;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.9rem;
    transition: background-color 0.2s;
}

.action-btn:hover {
    background-color: var(--accent-hover);
}

#deleteBtn {
    background-color: var(--danger-color);
}

#deleteBtn:hover {
    background-color: #bb2d3b;
}

/* Page Navigation in Right Sidebar */
.page-nav-sidebar {
    padding: 10px 20px;
}

.page-nav-sidebar .no-contents {
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-style: italic;
    text-align: center;
    padding: 20px 0;
}

.page-nav-sidebar a {
    display: block;
    padding: 8px 0;
    color: var(--accent-color);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.2s;
    border-left: 2px solid transparent;
    padding-left: 12px;
}

.page-nav-sidebar a:hover {
    color: var(--accent-hover);
    border-left-color: var(--accent-color);
    background-color: var(--bg-tertiary);
}

.page-nav-sidebar a.level-2 {
    padding-left: 20px;
    font-size: 0.85rem;
}

.page-nav-sidebar a.level-3 {
    padding-left: 35px;
    font-size: 0.8rem;
}

/* Page Content */
.page-content {
    line-height: 1.7;
    max-width: 900px;
}

/* Folder Hierarchy View */
.folder-hierarchy {
    padding: 20px 0;
}

.folder-description {
    background-color: var(--bg-secondary);
    border-left: 4px solid var(--accent-color);
    padding: 15px 20px;
    margin-bottom: 30px;
    border-radius: 4px;
}

.folder-description p {
    margin: 0;
    color: var(--text-secondary);
}

.hierarchy-tree {
    position: relative;
}

.hierarchy-item {
    margin: 6px 0;
    position: relative;
}

.hierarchy-link {
    display: inline-flex;
    align-items: center;
    padding: 8px 14px;
    border-radius: 6px;
    text-decoration: none;
    color: var(--text-primary);
    background-color: var(--bg-secondary);
    transition: all 0.2s;
    border-left: 3px solid;
    font-size: 0.95rem;
}

.hierarchy-link:hover {
    background-color: var(--bg-tertiary);
    transform: translateX(4px);
    box-shadow: var(--shadow);
}

.hierarchy-link i {
    margin-right: 10px;
    font-size: 0.95rem;
}

.hierarchy-level-0 {
    border-left-color: #0d6efd;
    margin-left: 0;
}

.hierarchy-level-1 {
    border-left-color: #20c997;
    margin-left: 30px;
}

.hierarchy-level-2 {
    border-left-color: #ffc107;
    margin-left: 60px;
}

.hierarchy-level-3 {
    border-left-color: #fd7e14;
    margin-left: 90px;
}

.hierarchy-level-4 {
    border-left-color: #dc3545;
    margin-left: 120px;
}

.hierarchy-level-5 {
    border-left-color: #6f42c1;
    margin-left: 150px;
}

.hierarchy-children {
    margin-top: 6px;
}

.page-content h1,
.page-content h2,
.page-content h3,
.page-content h4,
.page-content h5,
.page-content h6 {
    margin-top: 1.5em;
    margin-bottom: 0.6em;
    font-weight: 600;
    line-height: 1.3;
}

.page-content h1 {
    font-size: 2rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.3em;
}

.page-content h2 {
    font-size: 1.6rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.3em;
}

.page-content h3 {
    font-size: 1.3rem;
}

.page-content h4 {
    font-size: 1.1rem;
}

.page-content p {
    margin-bottom: 1em;
}

.page-content ul,
.page-content ol {
    margin-bottom: 1em;
    padding-left: 2em;
}

.page-content li {
    margin-bottom: 0.4em;
}

.page-content a {
    color: var(--accent-color);
    text-decoration: none;
}

.page-content a:hover {
    text-decoration: underline;
}

.page-content img {
    max-width: 100%;
    height: auto;
    margin: 1em 0;
    border-radius: 4px;
}

/* Resizable images in editor */
.editor-content img {
    max-width: 100%;
    height: auto;
    border-radius: 4px;
}

.image-resize-handle {
    position: absolute;
    right: 0;
    bottom: 0;
    width: 20px;
    height: 20px;
    background: var(--accent-color);
    cursor: nwse-resize;
    border-radius: 0 0 4px 0;
    opacity: 0;
    transition: opacity 0.2s;
    z-index: 10;
}

.image-resize-handle:hover {
    opacity: 1 !important;
}

.page-content table {
    border-collapse: collapse;
    width: 100%;
    margin: 1em 0;
    overflow-x: auto;
    display: table;
    border: 2px solid var(--border-color);
}

.page-content table td,
.page-content table th {
    border: 1px solid var(--border-color);
    padding: 10px 12px;
    text-align: left;
    min-width: 80px;
}

.page-content table th {
    background-color: var(--bg-secondary);
    font-weight: 600;
}

.page-content table tr:nth-child(even) {
    background-color: var(--bg-secondary);
}

/* Editor table styling */
.editor-content table {
    border-collapse: collapse;
    width: auto;
    margin: 1em 0;
    border: 2px solid var(--border-color);
    position: relative;
}

.editor-content table td,
.editor-content table th {
    border: 1px solid var(--border-color);
    padding: 10px 12px;
    text-align: left;
    min-width: 80px;
    position: relative;
}

.editor-content table th {
    background-color: var(--bg-secondary);
    font-weight: 600;
}

/* Table resize handles */
.table-resize-handle {
    position: absolute;
    background: var(--accent-color);
    opacity: 0;
    transition: opacity 0.2s;
    z-index: 10;
}

.table-resize-handle:hover,
.table-resize-handle.active {
    opacity: 0.8 !important;
}

.table-resize-handle.col-resize {
    right: -2px;
    top: 0;
    width: 4px;
    height: 100%;
    cursor: col-resize;
}

.table-resize-handle.row-resize {
    bottom: -2px;
    left: 0;
    width: 100%;
    height: 4px;
    cursor: row-resize;
}

.editor-content table:hover .table-resize-handle {
    opacity: 0.5;
}

/* Table corner resize handle */
.table-corner-resize {
    position: absolute;
    right: -5px;
    bottom: -5px;
    width: 15px;
    height: 15px;
    background: var(--accent-color);
    cursor: nwse-resize;
    opacity: 0;
    transition: opacity 0.2s;
    z-index: 15;
    border-radius: 0 0 4px 0;
}

.table-corner-resize:hover {
    opacity: 1 !important;
}

.page-content blockquote {
    border-left: 4px solid var(--accent-color);
    padding-left: 20px;
    margin: 20px 0;
    color: var(--text-secondary);
    font-style: italic;
}

/* Folder Hierarchy View */
.folder-hierarchy {
    padding: 20px 0;
}

.folder-description {
    background-color: var(--bg-secondary);
    border-left: 4px solid var(--accent-color);
    padding: 15px 20px;
    margin-bottom: 30px;
    border-radius: 4px;
}

.folder-description p {
    margin: 0;
    color: var(--text-secondary);
}

/* Hierarchy Table */
.hierarchy-table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
}

.hierarchy-row {
    border-left: 4px solid;
    transition: background-color 0.2s;
}

.hierarchy-row:hover {
    background-color: var(--bg-secondary);
}

.hierarchy-cell {
    padding: 10px 15px;
    border-bottom: 1px solid var(--border-color);
}

.hierarchy-indent {
    display: inline-block;
}

.hierarchy-text-link {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--text-primary);
    font-size: 0.95rem;
    transition: color 0.2s;
}

.hierarchy-text-link:hover {
    color: var(--accent-color);
}

.hierarchy-text-link i {
    font-size: 0.95rem;
}

.hierarchy-text-link i.fa-folder {
    color: #ffc107;
}

.hierarchy-text-link i.fa-file-alt {
    color: var(--text-secondary);
}

/* Level color coding */
.level-color-0 {
    border-left-color: #2196f3;
}

.level-color-1 {
    border-left-color: #ff9800;
}

.level-color-2 {
    border-left-color: #ffc107;
}

.level-color-3 {
    border-left-color: #4caf50;
}

.level-color-4 {
    border-left-color: #9c27b0;
}

.level-color-5 {
    border-left-color: #00bcd4;
}

.empty-message {
    color: var(--text-secondary);
    font-style: italic;
    text-align: center;
    padding: 40px;
    font-size: 1.1rem;
}

/* Index View */
.index-view {
    max-width: 1000px;
}

.index-view h1 {
    font-size: 2.5rem;
    margin-bottom: 10px;
    color: var(--text-primary);
}

.index-description {
    color: var(--text-secondary);
    font-size: 1.1rem;
    margin-bottom: 30px;
}

/* Page Content */
.page-content blockquote {
    border-left: 4px solid var(--accent-color);
    padding-left: 1em;
    margin: 1em 0;
    color: var(--text-secondary);
    font-style: italic;
}

.page-content code {
    background-color: var(--bg-secondary);
    padding: 2px 6px;
    border-radius: 3px;
    font-family: 'Courier New', monospace;
    font-size: 0.9em;
}

.page-content pre {
    background-color: var(--bg-secondary);
    padding: 15px;
    border-radius: 6px;
    overflow-x: auto;
    margin: 1em 0;
}

.page-content pre code {
    background: none;
    padding: 0;
}

/* Editor */
.page-editor {
    max-width: 1200px;
}

.editor-toolbar {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 6px 6px 0 0;
    padding: 12px;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    position: sticky;
    top: var(--topnav-height);
    z-index: 100;
}

.toolbar-group {
    display: flex;
    gap: 4px;
    padding: 0 8px;
    border-right: 1px solid var(--border-color);
}

.toolbar-group:last-child {
    border-right: none;
}

.toolbar-btn {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 8px 12px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.9rem;
    transition: background-color 0.2s, border-color 0.2s;
}

.toolbar-btn:hover {
    background-color: var(--bg-tertiary);
    border-color: var(--accent-color);
}

.toolbar-btn:active,
.toolbar-btn.active {
    background-color: var(--accent-color);
    color: white;
    border-color: var(--accent-color);
}

.toolbar-select {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 8px 12px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.9rem;
    outline: none;
}

.toolbar-select:hover {
    border-color: var(--accent-color);
}

.toolbar-color {
    width: 40px;
    height: 34px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    cursor: pointer;
    background: none;
}

.editor-content {
    min-height: 400px;
    max-height: 600px;
    overflow-y: auto;
    padding: 20px;
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-top: none;
    border-radius: 0 0 6px 6px;
    outline: none;
    color: var(--text-primary);
    line-height: 1.7;
}

.editor-content:focus {
    border-color: var(--accent-color);
}

.editor-actions {
    margin-top: 20px;
    display: flex;
    gap: 10px;
}

.btn {
    padding: 10px 20px;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.95rem;
    font-weight: 500;
    transition: background-color 0.2s, transform 0.1s;
}

.btn:active {
    transform: scale(0.98);
}

.btn-primary {
    background-color: var(--accent-color);
    color: white;
}

.btn-primary:hover {
    background-color: var(--accent-hover);
}

.btn-secondary {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
}

.btn-secondary:hover {
    background-color: var(--border-color);
}

/* Modal */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 2000;
    display: none;
    align-items: center;
    justify-content: center;
}

.modal.active {
    display: flex;
}

.modal-content {
    background-color: var(--bg-primary);
    border-radius: 8px;
    box-shadow: var(--shadow-lg);
    width: 90%;
    max-width: 500px;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
    border-bottom: 1px solid var(--border-color);
}

.modal-header h2 {
    font-size: 1.3rem;
    font-weight: 600;
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--text-primary);
    cursor: pointer;
    padding: 4px;
    border-radius: 4px;
    transition: background-color 0.2s;
}

.modal-close:hover {
    background-color: var(--bg-tertiary);
}

.modal-body {
    padding: 20px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-primary);
}

.form-input {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-size: 0.95rem;
    outline: none;
    transition: border-color 0.2s;
}

.form-input:focus {
    border-color: var(--accent-color);
}

.modal-footer {
    padding: 20px;
    border-top: 1px solid var(--border-color);
    display: flex;
    gap: 10px;
    justify-content: flex-end;
}

.modal-small {
    max-width: 400px;
}

/* Settings Modal */
.settings-section {
    margin: 20px 0;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.settings-action-btn {
    width: 100%;
    padding: 12px 20px;
    background-color: var(--bg-secondary);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 1rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 12px;
    transition: all 0.2s;
}

.settings-action-btn:hover {
    background-color: var(--bg-tertiary);
    border-color: var(--accent-color);
}

.settings-action-btn.danger {
    border-color: #dc3545;
    color: #dc3545;
}

.settings-action-btn.danger:hover {
    background-color: rgba(220, 53, 69, 0.1);
    border-color: #dc3545;
}

.settings-action-btn i {
    font-size: 1.2rem;
}

/* Image Modal Tabs */
.image-tabs {
    display: flex;
    gap: 5px;
    margin-bottom: 20px;
    border-bottom: 2px solid var(--border-color);
}

.image-tab {
    flex: 1;
    padding: 10px 15px;
    background: none;
    border: none;
    border-bottom: 2px solid transparent;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 0.95rem;
    transition: all 0.2s;
    margin-bottom: -2px;
}

.image-tab:hover {
    color: var(--text-primary);
}

.image-tab.active {
    color: var(--accent-color);
    border-bottom-color: var(--accent-color);
    font-weight: 500;
}

.tab-content {
    min-height: 150px;
}

.image-preview {
    margin-top: 15px;
    text-align: center;
}

.image-preview img {
    max-width: 100%;
    max-height: 300px;
    border-radius: 6px;
    border: 1px solid var(--border-color);
}

/* Link Modal Tabs */
.link-tabs {
    display: flex;
    gap: 5px;
    margin-bottom: 20px;
    border-bottom: 2px solid var(--border-color);
}

.link-tab {
    flex: 1;
    padding: 10px 15px;
    background: none;
    border: none;
    border-bottom: 2px solid transparent;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 0.95rem;
    transition: all 0.2s;
    margin-bottom: -2px;
}

.link-tab:hover {
    color: var(--text-primary);
}

.link-tab.active {
    color: var(--accent-color);
    border-bottom-color: var(--accent-color);
    font-weight: 500;
}

/* Heading Options */
.heading-options {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.heading-option {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 15px 20px;
    background-color: var(--bg-secondary);
    border: 2px solid var(--border-color);
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s;
    text-align: left;
}

.heading-option:hover {
    border-color: var(--accent-color);
    background-color: var(--bg-tertiary);
}

.heading-option h1,
.heading-option h2,
.heading-option h3,
.heading-option h4,
.heading-option h5,
.heading-option h6 {
    margin: 0;
    color: var(--text-primary);
}

.heading-option span {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* Context Menu */
.context-menu {
    position: fixed;
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    box-shadow: var(--shadow-lg);
    padding: 5px 0;
    min-width: 180px;
    z-index: 3000;
    display: none;
}

.context-menu.active {
    display: block;
}

.context-menu-item {
    padding: 10px 15px;
    cursor: pointer;
    transition: background-color 0.2s;
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-primary);
}

.context-menu-item:hover {
    background-color: var(--bg-secondary);
}

.context-menu-item.danger {
    color: var(--danger-color);
}

.context-menu-item.danger:hover {
    background-color: rgba(220, 53, 69, 0.1);
}

.context-menu-divider {
    height: 1px;
    background-color: var(--border-color);
    margin: 5px 0;
}

/* Rename Input */
.tree-item-rename {
    flex: 1;
    padding: 4px 8px;
    border: 1px solid var(--accent-color);
    border-radius: 3px;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-size: 0.95rem;
    outline: none;
}

/* Responsive Design */
@media (max-width: 1024px) {
    /* Show right sidebar expand button on tablets/mobile */
    .right-sidebar.collapsed + .sidebar-expand-btn {
        display: flex !important;
    }
    
    .main-content {
        margin-right: 0;
    }
}

@media (max-width: 768px) {
    :root {
        --left-sidebar-width: 280px;
        --right-sidebar-width: 280px;
    }

    /* Hide title and lock button to save space */
    .wiki-title {
        display: none;
    }

    #lockBtn {
        display: none;
    }

    .search-container {
        max-width: none;
        flex: 1;
        margin: 0 5px 0 10px;
        margin-right: 60px; /* Space for theme/settings buttons */
    }

    .search-input {
        font-size: 0.85rem;
    }

    .search-btn {
        padding: 8px 10px;
    }

    .main-content {
        padding: 20px 15px;
        margin-left: 0;
        margin-right: 0;
    }

    /* On mobile, sidebar slides over content */
    .left-sidebar {
        position: fixed;
        z-index: 1000;
        box-shadow: 2px 0 10px rgba(0, 0, 0, 0.3);
    }

    .left-sidebar.collapsed {
        transform: translateX(-100%);
    }

    .right-sidebar {
        position: fixed;
        z-index: 1000;
        box-shadow: -2px 0 10px rgba(0, 0, 0, 0.3);
    }

    .right-sidebar.collapsed {
        transform: translateX(100%);
    }

    /* Make sidebar expand button more prominent on mobile */
    .sidebar-expand-btn {
        right: 5px;
        top: 80px;
        padding: 10px 12px;
        font-size: 0.75rem;
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
        border-radius: 8px;
        transform: none;
    }

    .sidebar-expand-btn:hover {
        right: 5px;
    }

    .sidebar-expand-btn i {
        font-size: 1rem;
    }

    .sidebar-expand-btn span {
        font-size: 0.7rem;
    }

    .page-title {
        font-size: 1.5rem;
    }

    .editor-toolbar {
        gap: 4px;
        padding: 8px 6px;
        flex-wrap: wrap;
        position: fixed;
        top: var(--topnav-height);
        left: 0;
        right: 0;
        z-index: 1001;
        background-color: var(--bg-secondary);
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
        width: 100%;
    }

    /* Ensure editor content has space for fixed toolbar */
    .page-editor {
        padding-top: 0;
    }

    .editor-content {
        margin-top: 100px; /* Space for fixed toolbar */
        min-height: calc(100vh - var(--topnav-height) - 200px);
    }

    .toolbar-group {
        padding: 0 2px;
        gap: 2px;
        border-right: none;
    }

    .toolbar-btn {
        padding: 6px 8px;
        font-size: 0.8rem;
        min-width: auto;
    }

    /* Make resize handles more visible on mobile */
    .image-resize-handle,
    .table-resize-handle {
        opacity: 0.6 !important;
        width: 24px !important;
        height: 24px !important;
    }

    .table-resize-handle.col-resize {
        width: 24px !important;
    }

    .table-resize-handle.row-resize {
        height: 24px !important;
    }
}

@media (max-width: 480px) {
    .left-sidebar,
    .right-sidebar {
        width: 85vw;
        max-width: 320px;
    }

    .search-container {
        max-width: 200px;
        flex: 1;
    }

    .search-input {
        font-size: 0.85rem;
        padding: 6px 10px;
    }

    .search-btn {
        padding: 6px 10px;
    }

    .page-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
    }

    .page-actions {
        width: 100%;
        justify-content: flex-start;
    }

    .toolbar-btn {
        padding: 8px;
    }

    /* Hide text on mobile toolbar buttons, keep only icons */
    .toolbar-btn span {
        display: none;
    }

    .toolbar-btn i {
        margin: 0;
    }

    .wiki-title {
        font-size: 1rem;
    }
}

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-secondary);
}

/* Print Styles */
@media print {
    .top-nav,
    .sidebar,
    .page-actions,
    .page-editor {
        display: none !important;
    }

    .main-content {
        margin: 0;
    }
}

/* Sync Toggle */
.sync-toggle {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 16px;
    cursor: pointer;
    margin-bottom: 10px;
}

.sync-toggle input[type="checkbox"] {
    width: 20px;
    height: 20px;
    cursor: pointer;
}

.sync-info {
    font-size: 14px;
    color: var(--text-secondary);
    margin: 10px 0;
}