:root {
    /* Light Theme Variables */
    --bg-color: #f3f4f6;
    --surface-color: rgba(255, 255, 255, 0.7);
    --surface-hover: rgba(255, 255, 255, 0.9);
    --text-primary: #111827;
    --text-secondary: #4b5563;
    --border-color: rgba(0, 0, 0, 0.08);
    --primary-color: #4f46e5;
    --primary-hover: #4338ca;
    --accent-color: #8b5cf6;
    --danger-color: #ef4444;
    --danger-hover: #dc2626;

    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);

    --glass-blur: blur(12px);
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --radius-full: 9999px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="dark"] {
    /* Dark Theme Variables */
    --bg-color: #111827;
    --surface-color: rgba(31, 41, 55, 0.7);
    --surface-hover: rgba(55, 65, 81, 0.9);
    --text-primary: #f9fafb;
    --text-secondary: #9ca3af;
    --border-color: rgba(255, 255, 255, 0.08);
    --primary-color: #6366f1;
    --primary-hover: #818cf8;
    --accent-color: #a78bfa;
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    transition: background-color var(--transition), color var(--transition);
    min-height: 100vh;
    overflow-x: hidden;
}

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

::-webkit-scrollbar-track {
    background: transparent;
}

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

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

.app-wrapper {
    display: flex;
    flex-direction: column;
    height: 100vh;
}

/* Header */
.app-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 1.5rem;
    background: var(--surface-color);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 20;
    gap: 1rem;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: 700;
}

.logo span {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.app-logo-img {
    width: 1.75rem;
    height: 1.75rem;
    object-fit: contain;
}

.search-container {
    flex: 1;
    max-width: 400px;
    display: flex;
    align-items: center;
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-full);
    padding: 0.5rem 1rem;
    gap: 0.5rem;
    transition: var(--transition);
}

.search-container:focus-within {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.2);
}

.search-container i {
    color: var(--text-secondary);
    cursor: pointer;
}

.search-container input {
    border: none;
    background: transparent;
    outline: none;
    color: var(--text-primary);
    width: 100%;
    font-family: inherit;
    font-size: 0.95rem;
}

.header-actions {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.layout-switcher {
    display: flex;
    gap: 0.25rem;
    margin-right: 0.5rem;
    background: var(--bg-color);
    border-radius: var(--radius-full);
    padding: 0.25rem;
}

.layout-switcher .layout-btn {
    padding: 0.4rem;
    font-size: 1rem;
    border-radius: var(--radius-full);
}

.layout-switcher .layout-btn.active {
    background: var(--surface-color);
    box-shadow: var(--shadow-sm);
    color: var(--primary-color);
}

.divider {
    width: 1px;
    height: 24px;
    background: var(--border-color);
    margin: 0 0.5rem;
}

.icon-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 1.25rem;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: var(--radius-md);
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

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

#edit-toggle.unlocked {
    color: var(--danger-color);
}

#edit-toggle.unlocked:hover {
    background: rgba(239, 68, 68, 0.1);
}

/* App Body */
.app-body {
    display: flex;
    flex: 1;
    overflow: hidden;
    position: relative;
}

/* Sidebar */
.app-sidebar {
    width: 240px;
    background: var(--surface-color);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    transition: var(--transition);
    z-index: 100;
}

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

.sidebar-header h2 {
    font-size: 1.1rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.sidebar-menu {
    list-style: none;
    overflow-y: auto;
    flex: 1;
    padding: 1rem 0;
}

.sidebar-footer {
    margin-top: auto;
    padding: 0.5rem 0;
    border-top: 1px solid var(--border-color);
}

.sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    z-index: 25;
}

/* Split mode sidebar overlay on desktop */
.app-body:has(#preview-panel[style*="display: flex"]) .app-sidebar.open {
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    z-index: 100;
    box-shadow: var(--shadow-lg);
    background: var(--bg-color);
    opacity: 1 !important;
}

.app-body:has(#preview-panel[style*="display: flex"]) .sidebar-overlay.open {
    display: block;
    z-index: 90;
    position: absolute;
}


.sidebar-nav ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.nav-item a {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.6rem 0.75rem;
    text-decoration: none;
    color: var(--text-secondary);
    border-radius: var(--radius-md);
    font-weight: 500;
    transition: var(--transition);
    font-size: 0.95rem;
}

.nav-item a:hover {
    background: var(--surface-hover);
    color: var(--text-primary);
}

.nav-item.active a {
    background: var(--primary-color);
    color: white;
    box-shadow: var(--shadow-sm);
}

.nav-divider {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-secondary);
    margin: 1rem 0 0.25rem 0.75rem;
    font-weight: 600;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* Main Container */
.app-container {
    flex: 1;
    padding: 1rem;
    overflow-y: auto;
}

.loading {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: var(--text-secondary);
}

/* Home view: Tiles */
.home-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 0.75rem;
}

.category-tile {
    background: var(--surface-color);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 1rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
    text-align: center;
    position: relative;
}

.category-tile:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-color);
}

.category-tile .category-icon {
    font-size: 2.5rem;
    color: var(--primary-color);
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.category-tile .category-name {
    font-size: 1rem;
    font-weight: 600;
}

.category-tile .bookmark-count {
    font-size: 0.75rem;
    color: var(--text-secondary);
    background: var(--bg-color);
    padding: 0.2rem 0.5rem;
    border-radius: var(--radius-full);
}

/* Category Detail View */
.category-header {
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.5rem;
    font-weight: 700;
}

.category-header i {
    color: var(--primary-color);
}

.subcategory-section {
    margin-bottom: 1rem;
    padding: 0.25rem;
    border-radius: var(--radius-md);
    transition: background 0.2s;
}

.subcategory-section.drag-over {
    background: rgba(99, 102, 241, 0.05);
    border: 2px dashed var(--primary-color);
}

.subcategory-section.dragging-subcat {
    opacity: 0.5;
    border: 2px dashed var(--primary-color);
}

.subcategory-section.drag-over-subcat {
    border-top: 4px solid var(--primary-color) !important;
    background: rgba(99, 102, 241, 0.05);
}

.subcategory-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.5rem;
    padding-bottom: 0.25rem;
    border-bottom: 1px solid var(--border-color);
}

.subcategory-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.subcategory-actions {
    display: flex;
    gap: 0.25rem;
}

/* Dynamic Grids */
.bookmarks-grid {
    display: grid;
    gap: 0.5rem;
    min-height: 50px;
}

.bookmarks-grid[data-layout="grid-8"] {
    grid-template-columns: repeat(8, 1fr);
}

.bookmarks-grid[data-layout="grid-6"] {
    grid-template-columns: repeat(6, 1fr);
}

.bookmarks-grid[data-layout="grid-3"] {
    grid-template-columns: repeat(3, 1fr);
}

.bookmarks-grid[data-layout="grid-4"] {
    grid-template-columns: repeat(4, 1fr);
}

.bookmarks-grid[data-layout="list"] {
    display: flex;
    flex-direction: column;
}

/* Bookmark Card */
.bookmark-card {
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 0.75rem;
    text-decoration: none;
    color: inherit;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.bookmark-card.dragging {
    opacity: 0.4;
    border: 2px dashed var(--primary-color);
    transform: scale(0.98);
}

.bookmark-card.drag-over-item {
    border-left: 3px solid var(--primary-color) !important;
    background: rgba(99, 102, 241, 0.05);
}

.bookmarks-grid[data-layout="list"] .bookmark-card {
    flex-direction: row;
    align-items: center;
    padding: 0.75rem 1rem;
    gap: 1rem;
}

.bookmark-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--primary-color);
    transform: scaleY(0);
    transform-origin: bottom;
    transition: transform 0.3s ease;
}

.bookmark-card:hover {
    box-shadow: var(--shadow-sm);
    border-color: var(--primary-color);
}

.bookmark-card:hover::before {
    transform: scaleY(1);
}

.bookmark-content {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    overflow: hidden;
    width: 100%;
}

.bookmark-text {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    overflow: hidden;
    flex: 1;
}

.bookmark-icon {
    color: var(--primary-color);
    font-size: 1.5rem;
    flex-shrink: 0;
    margin-top: 0.1rem;
}

img.bookmark-icon.img-icon {
    width: 1.5rem;
    height: 1.5rem;
    object-fit: contain;
    border-radius: 4px;
    margin-top: 0.1rem;
}

.bookmark-title {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-primary);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.bookmark-desc {
    font-size: 0.8rem;
    color: var(--text-secondary);
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.tag-pill {
    background: rgba(99, 102, 241, 0.1);
    color: var(--primary-color);
    border: 1px solid rgba(99, 102, 241, 0.2);
    font-size: 0.65rem;
    padding: 2px 6px;
    border-radius: 12px;
    white-space: nowrap;
    text-transform: lowercase;
}

/* Tiles specific styles */
.bookmarks-grid[data-layout="grid-8"] .bookmark-card,
.bookmarks-grid[data-layout="grid-6"] .bookmark-card {
    align-items: center;
    text-align: center;
    padding: 1rem 0.5rem;
}

.bookmarks-grid[data-layout="grid-8"] .bookmark-content,
.bookmarks-grid[data-layout="grid-6"] .bookmark-content {
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
}

.bookmarks-grid[data-layout="grid-8"] .bookmark-icon,
.bookmarks-grid[data-layout="grid-6"] .bookmark-icon {
    font-size: 2rem;
    margin-top: 0;
}

.bookmarks-grid[data-layout="grid-8"] img.bookmark-icon.img-icon,
.bookmarks-grid[data-layout="grid-6"] img.bookmark-icon.img-icon {
    width: 2rem;
    height: 2rem;
    margin-top: 0;
}

.bookmarks-grid[data-layout="grid-8"] .bookmark-title {
    font-size: 0.9rem;
    white-space: normal;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

.bookmarks-grid[data-layout="grid-6"] .bookmark-title {
    font-size: 0.9rem;
    white-space: normal;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

.bookmark-tags-container {
    display: flex;
    flex-wrap: wrap;
    gap: 0.25rem;
    margin-top: 0.25rem;
}

.bookmark-tags-container:empty {
    display: none;
}

.bookmarks-grid[data-layout="grid-8"] .bookmark-desc,
.bookmarks-grid[data-layout="grid-6"] .bookmark-desc {
    display: none;
}

/* List specific styles */
.bookmarks-grid[data-layout="list"] .bookmark-card {
    padding: 0.4rem 0.75rem;
}

body.edit-mode-active .bookmarks-grid[data-layout="list"] .bookmark-card {
    padding-left: 2.75rem;
}

.bookmarks-grid[data-layout="list"] .bookmark-content {
    align-items: center;
}

.bookmarks-grid[data-layout="list"] .bookmark-text {
    justify-content: center;
}

.bookmarks-grid[data-layout="list"] .bookmark-icon,
.bookmarks-grid[data-layout="list"] img.bookmark-icon.img-icon {
    margin-top: 0;
}

.bookmarks-grid[data-layout="list"] .bookmark-desc {
    display: none;
}

.drag-handle {
    position: absolute;
    left: 6px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-secondary);
    cursor: grab;
    padding: 0.25rem;
    opacity: 0.5;
}

.drag-handle:hover {
    opacity: 1;
    color: var(--text-primary);
}

.drag-handle:active {
    cursor: grabbing;
}

.bookmark-actions {
    position: absolute;
    top: 0.25rem;
    right: 0.25rem;
    display: flex;
    gap: 0.1rem;
}

.bookmarks-grid[data-layout="list"] .bookmark-actions {
    position: static;
}

.bookmark-actions .icon-btn {
    padding: 0.3rem;
    font-size: 0.9rem;
    background: var(--bg-color);
    box-shadow: var(--shadow-sm);
}

.bookmark-actions .delete-btn:hover {
    color: var(--danger-color);
    background: rgba(239, 68, 68, 0.1);
}

.bookmark-card.drag-over {
    border: 2px dashed var(--primary-color);
    background: rgba(99, 102, 241, 0.05);
}

.drag-over-cat {
    border-top: 2px solid var(--primary-color) !important;
}

/* Modals */
.modal-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    z-index: 150;
}

.modal {
    display: none;
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 90%;
    max-width: 450px;
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    z-index: 151;
    flex-direction: column;
}

.modal.open {
    display: flex;
    animation: modalIn 0.2s ease-out;
}

@keyframes modalIn {
    from {
        opacity: 0;
        transform: translate(-50%, -48%) scale(0.96);
    }

    to {
        opacity: 1;
        transform: translate(-50%, -50%) scale(1);
    }
}

.modal-overlay.open {
    display: block;
    animation: overlayIn 0.2s ease-out;
}

@keyframes overlayIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.5rem 1rem;
    border-bottom: 1px solid var(--border-color);
}

.modal-header h3 {
    font-size: 1.1rem;
    font-weight: 600;
}

.modal-body {
    padding: 0.5rem 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    border-top: 1px solid var(--border-color);
    background: var(--surface-color);
    border-radius: 0 0 var(--radius-lg) var(--radius-lg);
}

/* Modal Tabs */
.modal-tabs {
    display: flex;
    border-bottom: 1px solid var(--border-color);
    padding: 0 1.25rem;
    background: var(--surface-color);
}

.tab-btn {
    background: none;
    border: none;
    border-bottom: 2px solid transparent;
    padding: 0.75rem 1rem;
    cursor: pointer;
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.9rem;
    transition: var(--transition);
}

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

.tab-btn.active {
    border-bottom-color: var(--primary-color);
    color: var(--primary-color);
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}

.form-group label {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.form-group input,
.form-group textarea,
.form-group select {
    padding: 0.5rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    background: var(--surface-color);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.85rem;
    outline: none;
    transition: var(--transition);
    width: 100%;
    box-sizing: border-box;
}

select option {
    background: var(--surface-color);
    color: var(--text-primary);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.2);
}

.btn {
    padding: 0.5rem 1rem;
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    border: none;
    transition: var(--transition);
}

.btn-primary {
    background: var(--primary-gradient, var(--primary-color));
    color: white;
    border: none;
}

.btn-primary:hover {
    opacity: 0.9;
}

.btn-secondary {
    background: var(--surface-hover);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

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

/* Mobile Utilities */
.mobile-only {
    display: none;
}

@media (max-width: 900px) {
    .bookmarks-grid[data-layout="grid-4"] {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 768px) {
    .mobile-only {
        display: flex;
    }

    .desktop-only {
        display: none !important;
    }

    .app-header .layout-switcher {
        display: none;
    }

    /* Hide switcher in header on mobile */

    .app-header {
        padding: 0.5rem 1rem;
        position: relative;
    }

    .search-container {
        max-width: 38px;
        border-radius: 50%;
        overflow: hidden;
        padding: 0.5rem;
        cursor: pointer;
        border: none;
        background: transparent;
    }

    .search-container.expanded {
        position: absolute;
        top: 50%;
        transform: translateY(-50%);
        left: 0.5rem;
        right: 0.5rem;
        max-width: calc(100% - 1rem);
        z-index: 50;
        border-radius: var(--radius-full);
        background: var(--bg-color);
        border: 1px solid var(--border-color);
        padding: 0.5rem 1rem;
        box-shadow: var(--shadow-md);
    }

    .search-container input {
        display: none;
    }

    .search-container.expanded input {
        display: block;
    }

    .app-sidebar {
        position: fixed;
        left: -240px;
        top: 0;
        height: 100vh;
        background: var(--bg-color);
        /* Remove transparency on mobile */
    }

    .app-sidebar.open {
        left: 0;
        box-shadow: var(--shadow-lg);
    }

    .sidebar-overlay.open {
        display: block;
    }

    .bookmarks-grid[data-layout="grid-6"] {
        grid-template-columns: repeat(2, 1fr);
    }

    .bookmarks-grid[data-layout="grid-8"] {
        grid-template-columns: repeat(3, 1fr);
    }

    .home-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    /* Mobile split mode: stack vertically */
    .app-body:has(#preview-panel[style*="display: flex"]),
    .app-body:has(#preview-panel[style*="display:flex"]) {
        flex-direction: column;
    }

    .app-body:has(#preview-panel[style*="display: flex"]) .app-container,
    .app-body:has(#preview-panel[style*="display:flex"]) .app-container {
        width: 100% !important;
        height: 50%;
        overflow-y: auto;
    }

    .app-body:has(#preview-panel[style*="display: flex"]) #preview-panel,
    .app-body:has(#preview-panel[style*="display:flex"]) #preview-panel {
        width: 100% !important;
        height: 50%;
    }

    .app-body:has(#preview-panel[style*="display: flex"]) .resizer,
    .app-body:has(#preview-panel[style*="display:flex"]) .resizer {
        display: none !important;
    }
}

.icon-selector-container {
    margin-top: 0.5rem;
    background: var(--bg-primary);
    border-radius: 6px;
    padding: 0.5rem;
    border: 1px solid var(--border-color);
}

.icon-freq-row {
    display: flex;
    gap: 0.5rem 0;
    padding-bottom: 0rem;
    border-bottom: 1px solid var(--border-color);
    overflow-x: auto;
    min-height: 27px;
    margin-bottom: 4px;
}

.icon-grid {
    display: grid;
    grid-template-columns: repeat(10, 1fr);
    gap: 0.25rem;
    height: 120px;
    align-items: start;
    align-content: start;
}

.icon-grid i,
.icon-freq-row i {
    font-size: 1.25rem;
    padding: 0.2rem;
    cursor: pointer;
    border-radius: 4px;
    transition: background 0.2s;
    color: var(--text-secondary);
    text-align: center;
}

.icon-grid i:hover,
.icon-freq-row i:hover {
    background: var(--primary-gradient, var(--primary-color));
    color: white;
}

.icon-search-input {
    width: 100%;
    padding: 0.5rem;
    margin-bottom: 0.5rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background: var(--bg-primary);
    color: var(--text-primary);
    box-sizing: border-box;
}

.icon-pagination {
    display: flex;
    justify-content: center;
    gap: 1rem;
    align-items: center;
}

.icon-page-indicator {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.icon-tab-btn {
    background: transparent;
    border: none;
    font-size: 0.8rem;
    cursor: pointer;
    padding: 2px 6px;
    border-radius: 4px;
    color: var(--text-secondary);
}

.icon-tab-btn.active {
    background: var(--primary-color);
    color: white;
}

.theme-presets {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0.5rem;
}

.theme-swatch {
    height: 40px;
    border-radius: 6px;
    cursor: pointer;
    border: 2px solid transparent;
    transition: transform 0.2s, border-color 0.2s;
}

.theme-swatch:hover {
    transform: scale(1.05);
}

.theme-swatch.active {
    border-color: var(--text-primary);
}

/* Toast Notifications */
#toast-container {
    position: fixed;
    bottom: 20px;
    right: 20px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    z-index: 9999;
    pointer-events: none;
}

.toast {
    background: var(--bg-color);
    color: var(--text-color);
    padding: 12px 20px;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    border-left: 4px solid var(--primary-color);
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.9rem;
    animation: slideInRight 0.3s ease forwards;
    pointer-events: auto;
    max-width: 350px;
    transition: opacity 0.3s ease;
}

.toast.toast-error {
    border-left-color: var(--danger-color);
}

.toast i {
    font-size: 1.2rem;
}

.toast.toast-error i {
    color: var(--danger-color);
}

.toast.toast-success i {
    color: var(--primary-color);
}

@keyframes slideInRight {
    from {
        transform: translateX(100%);
        opacity: 0;
    }

    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* Shared Mode Styles */
.shared-mode #edit-toggle,
.shared-mode #add-category-btn,
.shared-mode .add-subcategory-btn,
.shared-mode .add-bookmark-btn {
    display: none !important;
}

.shared-banner {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    background: #ffffff;
    color: #111827;
    padding: 12px 24px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 1.5rem;
    z-index: 1000;
    font-weight: 500;
    animation: slideUp 0.3s ease-out;
}

.shared-banner a {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border: none;
    transition: background 0.2s;
}

.shared-banner a:hover {
    background: rgba(255, 255, 255, 0.3);
}

@keyframes slideUp {
    from {
        transform: translate(-50%, 100%);
        opacity: 0;
    }

    to {
        transform: translate(-50%, 0);
        opacity: 1;
    }
}


#confirm-modal {
    z-index: 200 !important;
}


.sidebar-nav {
    flex: 1;
    overflow-y: auto;
}

.sidebar-footer {
    margin-top: auto;
}


@media (max-width: 768px) {
    .header-actions {
        gap: 0.15rem;
    }
}



/* Bulk Action Bar */
.bulk-action-bar {
    position: fixed;
    bottom: -100px;
    /* Hidden by default */
    left: 50%;
    transform: translateX(-50%);
    background: #ffffff;
    color: #111827;
    padding: 12px 24px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 1.5rem;
    z-index: 1000;
    font-weight: 500;
    transition: bottom 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.bulk-action-bar.visible {
    bottom: 2rem;
}

#bulk-selected-count {
    font-weight: 500;
    color: var(--text-color);
}

.bulk-actions {
    display: flex;
    gap: 0.5rem;
}

.bookmark-card.selected {
    outline: 2px solid var(--primary);
    background: rgba(var(--primary-rgb), 0.05);
}


/* --- Favorites & Recent Styling --- */
.bookmark-card {
    position: relative;
    /* Ensure child absolute positioning works */
}

.bookmark-toggles {
    position: absolute;
    bottom: 8px;
    right: 8px;
    display: flex;
    gap: 4px;
    z-index: 5;
    opacity: 0;
    transition: opacity 0.2s;
    background: var(--bg-secondary);
    padding: 2px;
    border-radius: 12px;
}

.bookmark-card:hover .bookmark-toggles,
.bookmark-toggles:has(.active) {
    opacity: 1;
}

.bookmarks-grid[data-layout="list"] .bookmark-toggles {
    position: static;
    opacity: 1;
    margin-left: auto;
    background: transparent;
    padding: 0;
}

.bookmark-toggles .icon-btn {
    color: var(--text-muted);
    background: var(--bg-color);
    box-shadow: var(--shadow-sm);
    padding: 0.3rem;
    font-size: 0.9rem;
    border-radius: 50%;
}

.bookmark-toggles .icon-btn:hover {
    transform: scale(1.1);
}

.favorite-btn:hover,
.favorite-btn.active {
    color: var(--danger, #ef4444) !important;
}

.pin-btn:hover,
.pin-btn.active {
    color: var(--primary-color) !important;
}

.click-badge {
    position: absolute;
    bottom: 8px;
    left: 8px;
    background: var(--bg-tertiary);
    color: var(--text-muted);
    font-size: 11px;
    padding: 2px 6px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    gap: 4px;
    z-index: 5;
}

.click-badge i {
    font-size: 12px;
}

.bookmarks-grid[data-layout="list"] .click-badge {
    left: auto;
    right: 40px;
}

/* Resizer */
.resizer:hover {
    background: var(--primary-color) !important;
}

.resizer:hover>div {
    opacity: 0.8 !important;
    background: white !important;
}

/* Preview Panel */
#preview-panel {
    display: none;
    flex-direction: column;
    overflow: hidden;
}

.floating-install-btn {
    position: fixed;
    bottom: 24px;
    right: 24px;
    background: var(--bg-secondary);
    color: var(--success, #22c55e);
    border: 1px solid var(--border-color);
    border-radius: 50px;
    padding: 12px;
    display: flex;
    align-items: center;
    gap: 0;
    font-weight: 600;
    font-size: 1rem;
    box-shadow: var(--shadow-lg);
    z-index: 9999;
    opacity: 0.5;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
}

.floating-install-btn span {
    max-width: 0;
    opacity: 0;
    overflow: hidden;
    white-space: nowrap;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.floating-install-btn:hover {
    opacity: 1;
    transform: translateY(-2px);
    padding: 12px 20px;
    gap: 8px;
}

.floating-install-btn:hover span {
    max-width: 150px;
    opacity: 1;
}

/* Slide animation for split mode */
#app-container,
#preview-panel {
    transition: width 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Special Collections Toggles Visibility */
.app-container[data-category="favorites"] .pin-btn {
    display: none !important;
}

.app-container[data-category="recent"] .pin-btn,
.app-container[data-category="recent"] .favorite-btn {
    display: none !important;
}