/**
 * BookmarkHub Application Styles
 */

/* 12-Column Grid System - Basecoat Compliant */
.grid { display: grid; grid-template-columns: repeat(12, 1fr); gap: var(--spacing-4); }
.col-1 { grid-column: span 1; }
.col-2 { grid-column: span 2; }
.col-3 { grid-column: span 3; }
.col-4 { grid-column: span 4; }
.col-5 { grid-column: span 5; }
.col-6 { grid-column: span 6; }
.col-7 { grid-column: span 7; }
.col-8 { grid-column: span 8; }
.col-9 { grid-column: span 9; }
.col-10 { grid-column: span 10; }
.col-11 { grid-column: span 11; }
.col-12 { grid-column: span 12; }
.col-start-1 { grid-column-start: 1; }
.col-start-2 { grid-column-start: 2; }
.col-start-3 { grid-column-start: 3; }
.col-start-4 { grid-column-start: 4; }
.col-start-5 { grid-column-start: 5; }
.col-start-6 { grid-column-start: 6; }
.col-start-7 { grid-column-start: 7; }
.col-start-8 { grid-column-start: 8; }
.col-start-9 { grid-column-start: 9; }
.col-start-10 { grid-column-start: 10; }
.col-start-11 { grid-column-start: 11; }
.col-start-12 { grid-column-start: 12; }

/* Dynamic color utilities for Basecoat compliance */
.nav-icon[data-color] { color: var(--icon-color); }
.bookmark-category[data-color] { --cat-color: var(--category-color); }
.tag-mini[data-color] { --tag-color: var(--tag-color); }
.bookmark-thumbnail-placeholder { 
    background: linear-gradient(135deg, var(--thumbnail-color-1), var(--thumbnail-color-2));
}
.bookmark-thumbnail-placeholder[data-category-color] {
    --thumbnail-color-1: attr(data-category-color)20;
    --thumbnail-color-2: attr(data-category-color)40;
}
.bookmark-thumbnail-placeholder img,
.fallback-favicon {
    width: 48px;
    height: 48px;
    border-radius: 8px;
}
.fallback-favicon.hidden {
    display: none;
}

/* Layout */
.app-container {
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    position: fixed;
    left: 0;
    top: 0;
    bottom: 0;
    width: 260px;
    display: flex;
    flex-direction: column;
    background-color: var(--color-white);
    border-right: 1px solid var(--color-gray-200);
    z-index: 50;
    transition: transform var(--transition-normal);
}

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

.sidebar-header {
    padding: var(--spacing-4) var(--spacing-5);
    border-bottom: 1px solid var(--color-gray-100);
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--color-gray-900);
}

.logo-icon {
    width: 28px;
    height: 28px;
    color: var(--color-primary);
}

.sidebar-nav {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-4) 0;
}

.nav-section {
    margin-bottom: var(--spacing-4);
    padding: 0 var(--spacing-3);
}

.nav-section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-2) var(--spacing-3);
    font-size: var(--font-size-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-gray-500);
}

.nav-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    padding: var(--spacing-2) var(--spacing-3);
    font-size: var(--font-size-sm);
    color: var(--color-gray-600);
    border-radius: var(--radius-lg);
    transition: all var(--transition-fast);
}

.nav-item:hover {
    background-color: var(--color-gray-100);
    color: var(--color-gray-900);
}

.nav-item.active {
    background-color: var(--color-primary-light);
    color: var(--color-primary);
}

.nav-item svg {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
}

.nav-item .badge {
    margin-left: auto;
}

.tags-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-2);
    padding: var(--spacing-2) var(--spacing-3);
}

.tag-pill {
    display: inline-flex;
    align-items: center;
    padding: 2px 10px;
    font-size: var(--font-size-xs);
    font-weight: 500;
    color: var(--tag-color, var(--color-gray-600));
    background-color: color-mix(in srgb, var(--tag-color, var(--color-gray-400)) 15%, transparent);
    border-radius: var(--radius-full);
    transition: all var(--transition-fast);
}

.tag-pill:hover,
.tag-pill.active {
    background-color: color-mix(in srgb, var(--tag-color, var(--color-gray-400)) 25%, transparent);
}

.sidebar-footer {
    padding: var(--spacing-3);
    border-top: 1px solid var(--color-gray-100);
}

/* Main Content */
.main-content {
    flex: 1;
    margin-left: 260px;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* Top Bar */
.top-bar {
    position: sticky;
    top: 0;
    display: flex;
    align-items: center;
    gap: var(--spacing-4);
    padding: var(--spacing-3) var(--spacing-6);
    background-color: var(--color-white);
    border-bottom: 1px solid var(--color-gray-200);
    z-index: 40;
}

.top-bar-left {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
}

.sidebar-toggle {
    display: none;
}

.page-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin: 0;
}

.top-bar-center {
    flex: 1;
    max-width: 480px;
    margin: 0 auto;
}

.search-form {
    position: relative;
    display: flex;
    align-items: center;
}

.search-icon {
    position: absolute;
    left: 12px;
    width: 18px;
    height: 18px;
    color: var(--color-gray-400);
    pointer-events: none;
}

.search-input {
    width: 100%;
    padding-left: 40px;
    background-color: var(--color-gray-100);
    border-color: transparent;
}

.search-input:focus {
    background-color: var(--color-white);
}

.top-bar-right {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
}

.user-menu {
    position: relative;
}

.user-avatar {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background-color: var(--color-primary);
    color: var(--color-white);
    font-weight: 600;
    font-size: var(--font-size-sm);
    border: none;
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: transform var(--transition-fast);
}

.user-avatar:hover {
    transform: scale(1.05);
}

/* Toolbar */
.toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-3) var(--spacing-6);
    background-color: var(--color-gray-50);
    border-bottom: 1px solid var(--color-gray-200);
}

.toolbar-left {
    display: flex;
    align-items: center;
    gap: var(--spacing-4);
}

.result-count {
    font-size: var(--font-size-sm);
    color: var(--color-gray-500);
}

.toolbar-right {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
}

.view-toggle {
    display: flex;
    align-items: center;
    background-color: var(--color-white);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-lg);
    padding: 2px;
}

.view-toggle .btn-icon {
    width: 32px;
    height: 32px;
}

.sort-select {
    width: auto;
    min-width: 150px;
}

/* Bookmarks Container */
.bookmarks-container {
    flex: 1;
    padding: var(--spacing-6);
}

.bookmarks-container.grid-view {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--spacing-4);
    align-content: start;
}

.bookmarks-container.list-view {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-3);
}

/* Bookmark Card */
.bookmark-card {
    background-color: var(--color-white);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-xl);
    padding: var(--spacing-4);
    transition: all var(--transition-fast);
}

.bookmark-card:hover {
    border-color: var(--color-gray-300);
    box-shadow: var(--shadow-md);
}

.list-view .bookmark-card {
    display: grid;
    grid-template-columns: auto 1fr auto auto;
    align-items: center;
    gap: var(--spacing-4);
    padding: var(--spacing-3) var(--spacing-4);
}

.list-view .bookmark-thumbnail {
    display: none;
}

.list-view .bookmark-link {
    flex: 1;
    min-width: 0;
}

.list-view .bookmark-header {
    width: auto;
}

.bookmark-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    margin-bottom: var(--spacing-3);
}

.list-view .bookmark-header {
    margin-bottom: 0;
    flex-shrink: 0;
}

.bookmark-favicon {
    width: 24px;
    height: 24px;
    border-radius: var(--radius-sm);
    object-fit: contain;
}

.bookmark-domain {
    flex: 1;
    font-size: var(--font-size-xs);
    color: var(--color-gray-500);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.bookmark-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-1);
    opacity: 0;
    transition: opacity var(--transition-fast);
    position: relative;
    z-index: 10;
}

.bookmark-card:hover .bookmark-actions,
.bookmark-actions.active {
    opacity: 1;
}

.bookmark-actions .btn-icon {
    pointer-events: auto;
}

.bookmark-actions .btn-icon {
    width: 28px;
    height: 28px;
    position: relative;
    z-index: 11;
}

.bookmark-actions .btn-icon svg {
    width: 16px;
    height: 16px;
    pointer-events: none;
}

.favorite-btn.active {
    color: var(--color-warning);
}

.favorite-btn.active svg {
    fill: var(--color-warning);
}

.bookmark-link {
    display: block;
    color: inherit;
}

.bookmark-title {
    font-size: var(--font-size-base);
    font-weight: 500;
    margin: 0 0 var(--spacing-2);
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    display: box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    box-orient: vertical;
}

.list-view .bookmark-title {
    margin: 0;
    -webkit-line-clamp: 1;
    line-clamp: 1;
}

.bookmark-description {
    font-size: var(--font-size-sm);
    color: var(--color-gray-500);
    margin: 0 0 var(--spacing-3);
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    display: box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    box-orient: vertical;
}

.list-view .bookmark-description {
    display: none;
}

.bookmark-footer {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    flex-wrap: wrap;
}

.list-view .bookmark-footer {
    margin-left: auto;
}

.bookmark-category {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-1);
    padding: 2px 8px;
    font-size: var(--font-size-xs);
    font-weight: 500;
    color: var(--cat-color, var(--color-gray-600));
    background-color: color-mix(in srgb, var(--cat-color, var(--color-gray-400)) 15%, transparent);
    border-radius: var(--radius-full);
}

.bookmark-category svg {
    width: 12px;
    height: 12px;
}

.bookmark-tags {
    display: flex;
    gap: var(--spacing-1);
}

.tag-mini {
    padding: 1px 6px;
    font-size: 10px;
    font-weight: 500;
    border-radius: var(--radius-sm);
}

/* Empty State */
.empty-state {
    grid-column: 1 / -1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-12);
    text-align: center;
}

.empty-icon {
    width: 64px;
    height: 64px;
    color: var(--color-gray-300);
    margin-bottom: var(--spacing-4);
}

.empty-state h3 {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-2);
}

.empty-state p {
    color: var(--color-gray-500);
    margin-bottom: var(--spacing-6);
}

.empty-actions {
    display: flex;
    gap: var(--spacing-3);
}

/* Pagination - Hidden when using infinite scroll */
.pagination {
    display: none;
}

.page-info {
    font-size: var(--font-size-sm);
    color: var(--color-gray-500);
}

/* Infinite Scroll */
.scroll-loader {
    display: none;
    justify-content: center;
    align-items: center;
    padding: var(--spacing-8);
    grid-column: 1 / -1;
}

.scroll-loader.active {
    display: flex;
}

.scroll-loader .loading-spinner {
    width: 32px;
    height: 32px;
}

.scroll-sentinel {
    height: 1px;
    grid-column: 1 / -1;
}

/* Import Tabs */
.import-tabs {
    display: flex;
    border-bottom: 1px solid var(--color-gray-200);
}

.tab-btn {
    flex: 1;
    padding: var(--spacing-3) var(--spacing-4);
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-gray-500);
    background: none;
    border: none;
    border-bottom: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.tab-btn:hover {
    color: var(--color-gray-700);
}

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

.import-tab-content {
    display: none;
    padding: var(--spacing-5);
}

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

/* Upload Zone */
.upload-zone {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-10);
    border: 2px dashed var(--color-gray-300);
    border-radius: var(--radius-xl);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.upload-zone:hover,
.upload-zone.dragover {
    border-color: var(--color-primary);
    background-color: var(--color-primary-light);
}

.upload-icon {
    width: 48px;
    height: 48px;
    color: var(--color-gray-400);
    margin-bottom: var(--spacing-3);
}

.upload-zone h3 {
    font-size: var(--font-size-base);
    margin-bottom: var(--spacing-1);
}

.upload-zone p {
    color: var(--color-gray-500);
    margin-bottom: var(--spacing-3);
}

.upload-hint {
    font-size: var(--font-size-xs);
    color: var(--color-gray-400);
}

.file-preview {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    padding: var(--spacing-3) var(--spacing-4);
    background-color: var(--color-gray-100);
    border-radius: var(--radius-lg);
    margin-top: var(--spacing-4);
}

.file-preview svg {
    width: 24px;
    height: 24px;
    color: var(--color-primary);
}

.file-preview span {
    flex: 1;
    font-size: var(--font-size-sm);
    font-weight: 500;
}

/* Browser Instructions */
.browser-instructions h3 {
    margin-bottom: var(--spacing-4);
}

.browser-guide {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-4);
}

.browser-item {
    padding: var(--spacing-4);
    background-color: var(--color-gray-50);
    border-radius: var(--radius-lg);
}

.browser-item img {
    width: 32px;
    height: 32px;
    margin-bottom: var(--spacing-2);
}

.browser-item h4 {
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-1);
}

.browser-item p {
    font-size: var(--font-size-xs);
    color: var(--color-gray-500);
    margin: 0;
}

/* Context Menu */
.context-menu {
    display: none;
    position: fixed;
    min-width: 180px;
    padding: var(--spacing-2);
    background-color: var(--color-white);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    z-index: var(--z-dropdown);
}

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

.context-menu button {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    width: 100%;
    padding: var(--spacing-2) var(--spacing-3);
    font-size: var(--font-size-sm);
    color: var(--color-gray-700);
    background: none;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: background-color var(--transition-fast);
}

.context-menu button:hover {
    background-color: var(--color-gray-100);
}

.context-menu button svg {
    width: 16px;
    height: 16px;
    color: var(--color-gray-500);
}

.context-menu hr {
    margin: var(--spacing-2) 0;
    border: none;
    border-top: 1px solid var(--color-gray-100);
}

/* Responsive */
@media (max-width: 1024px) {
    .sidebar {
        transform: translateX(-100%);
    }
    
    .sidebar.open {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .sidebar-toggle {
        display: flex;
    }
    
    .top-bar-center {
        display: none;
    }
}

@media (max-width: 768px) {
    .bookmarks-container.grid-view {
        grid-template-columns: 1fr;
    }
    
    .top-bar {
        padding: var(--spacing-3) var(--spacing-4);
    }
    
    .toolbar {
        padding: var(--spacing-3) var(--spacing-4);
    }
    
    .bookmarks-container {
        padding: var(--spacing-4);
    }
    
    .browser-guide {
        grid-template-columns: 1fr;
    }
    
    .btn span {
        display: none;
    }
}

/* Auth Pages */
.auth-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-4);
    background: linear-gradient(135deg, var(--color-primary-light) 0%, var(--color-gray-100) 100%);
}

.auth-card {
    width: 100%;
    max-width: 400px;
    background-color: var(--color-white);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-xl);
    padding: var(--spacing-8);
}

.auth-header {
    text-align: center;
    margin-bottom: var(--spacing-6);
}

.auth-header .logo {
    justify-content: center;
    margin-bottom: var(--spacing-4);
}

.auth-header h1 {
    font-size: var(--font-size-2xl);
    margin-bottom: var(--spacing-2);
}

.auth-header p {
    color: var(--color-gray-500);
    margin: 0;
}

.auth-form .btn {
    width: 100%;
    padding: var(--spacing-3);
}

.auth-footer {
    text-align: center;
    margin-top: var(--spacing-6);
    padding-top: var(--spacing-6);
    border-top: 1px solid var(--color-gray-200);
}

.auth-footer p {
    font-size: var(--font-size-sm);
    color: var(--color-gray-500);
    margin: 0;
}

.alert {
    padding: var(--spacing-3) var(--spacing-4);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-4);
    font-size: var(--font-size-sm);
}

.alert-error {
    background-color: #fee2e2;
    color: #dc2626;
    border: 1px solid #fecaca;
}

.alert-success {
    background-color: #d1fae5;
    color: #059669;
    border: 1px solid #a7f3d0;
}

/* Settings Page */
.settings-container {
    max-width: 800px;
    margin: 0 auto;
    padding: var(--spacing-6);
}

.settings-section {
    background-color: var(--color-white);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-xl);
    margin-bottom: var(--spacing-6);
}

.settings-section-header {
    padding: var(--spacing-4) var(--spacing-5);
    border-bottom: 1px solid var(--color-gray-200);
}

.settings-section-header h2 {
    font-size: var(--font-size-lg);
    margin: 0;
}

.settings-section-body {
    padding: var(--spacing-5);
}

/* Bookmarks Container - 12-Column Grid System */
.bookmarks-container {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: var(--spacing-4);
    padding: var(--spacing-6);
}

.bookmarks-container.grid-view .bookmark-card {
    grid-column: span 4;
}

.bookmarks-container.list-view .bookmark-card {
    grid-column: span 12;
}

/* Responsive adjustments */
@media (max-width: 1024px) {
    .bookmarks-container.grid-view .bookmark-card {
        grid-column: span 6;
    }
}

@media (max-width: 768px) {
    .bookmarks-container.grid-view .bookmark-card {
        grid-column: span 12;
    }
}

/* Stats Cards */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--spacing-4);
    margin-bottom: var(--spacing-6);
}

.stat-card {
    background-color: var(--color-white);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-xl);
    padding: var(--spacing-4);
    text-align: center;
}

.stat-value {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--color-primary);
}

.stat-label {
    font-size: var(--font-size-sm);
    color: var(--color-gray-500);
}

/* Loading Spinner */
.spinner {
    width: 20px;
    height: 20px;
    border: 2px solid var(--color-gray-200);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Progress Bar */
.progress-bar {
    height: 8px;
    background-color: var(--color-gray-200);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background-color: var(--color-primary);
    border-radius: var(--radius-full);
    transition: width var(--transition-normal);
}

/* Bulk Actions Bar - Basecoat Compliant */
.bulk-actions-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-3) var(--spacing-6);
    margin: var(--spacing-6) var(--spacing-6) 0;
    background-color: var(--color-danger);
    color: var(--color-white);
    border-radius: var(--radius-lg);
}

.bulk-actions-left {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
}

.bulk-actions-right {
    display: flex;
    gap: var(--spacing-2);
}

.bulk-actions-bar .btn {
    background-color: var(--color-white);
    color: var(--color-danger);
}

.bulk-actions-bar .btn:hover {
    background-color: var(--color-gray-100);
}

/* Empty States - Basecoat Compliant */
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-12);
    text-align: center;
}

.empty-state-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 80px;
    height: 80px;
    margin-bottom: var(--spacing-4);
    border-radius: 50%;
    background-color: var(--color-gray-100);
    color: var(--color-gray-400);
}

.empty-state-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-2);
    color: var(--color-gray-900);
}

.empty-state-description {
    color: var(--color-gray-500);
    margin-bottom: var(--spacing-6);
}

.empty-state-actions {
    display: flex;
    gap: var(--spacing-3);
}

/* Admin Dashboard - Basecoat Compliant */
.admin-container {
    display: flex;
    min-height: 100vh;
    background-color: var(--color-gray-50);
}

.admin-sidebar {
    width: 260px;
    background-color: var(--color-white);
    border-right: 1px solid var(--color-gray-200);
    padding: var(--spacing-6);
    overflow-y: auto;
}

.admin-sidebar-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    margin-bottom: var(--spacing-6);
    font-weight: 700;
    color: var(--color-gray-900);
}

.admin-nav-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    padding: var(--spacing-2) var(--spacing-3);
    margin-bottom: var(--spacing-1);
    border-radius: var(--radius-md);
    color: var(--color-gray-700);
    text-decoration: none;
    transition: all var(--transition-fast);
}

.admin-nav-item:hover {
    background-color: var(--color-gray-100);
    color: var(--color-gray-900);
}

.admin-nav-item.active {
    background-color: var(--color-primary);
    color: var(--color-white);
}

.admin-main {
    flex: 1;
    padding: var(--spacing-6);
    overflow-y: auto;
}

.admin-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-6);
}

.admin-title {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    margin: 0 0 var(--spacing-1);
}

.admin-subtitle {
    color: var(--color-gray-500);
    margin: 0;
}

.admin-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
}

.date-form {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
}

.form-input {
    padding: var(--spacing-2) var(--spacing-3);
    border: 1px solid var(--color-gray-300);
    border-radius: var(--radius-lg);
    background-color: var(--color-white);
    font-size: var(--font-size-sm);
}

.date-separator {
    color: var(--color-gray-500);
    font-size: var(--font-size-sm);
}

.metrics-grid {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: var(--spacing-4);
    margin-bottom: var(--spacing-6);
}

.metric-card {
    grid-column: span 2;
    background-color: var(--color-white);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-xl);
    padding: var(--spacing-4);
    text-align: center;
}

.metric-value {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--spacing-1);
}

.metric-label {
    font-size: var(--font-size-sm);
    color: var(--color-gray-500);
}

@media (max-width: 1024px) {
    .metric-card {
        grid-column: span 3;
    }
}

@media (max-width: 768px) {
    .admin-container {
        flex-direction: column;
    }
    
    .admin-sidebar {
        width: 100%;
    }
    
    .metric-card {
        grid-column: span 6;
    }
}

.charts-grid {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: var(--spacing-6);
    margin-bottom: var(--spacing-6);
}

.charts-grid .chart-container {
    grid-column: span 6;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: var(--spacing-6);
}

.stats-grid .chart-container {
    grid-column: span 4;
}

.chart-container {
    background-color: var(--color-white);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-xl);
    padding: var(--spacing-5);
}

.chart-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin: 0 0 var(--spacing-4);
    color: var(--color-gray-900);
}

.stats-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-4);
}

.stat-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-2) 0;
    border-bottom: 1px solid var(--color-gray-100);
}

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

.stat-label {
    color: var(--color-gray-500);
    font-size: var(--font-size-sm);
}

.stat-value {
    font-weight: 600;
    color: var(--color-gray-900);
}

@media (max-width: 1024px) {
    .charts-grid .chart-container {
        grid-column: span 12;
    }
    
    .stats-grid .chart-container {
        grid-column: span 6;
    }
}

@media (max-width: 768px) {
    .stats-grid .chart-container {
        grid-column: span 12;
    }
}

.admin-nav {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-1);
}

.admin-nav-footer {
    margin-top: var(--spacing-6);
    padding-top: var(--spacing-6);
    border-top: 1px solid var(--color-gray-200);
}

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

.alert-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 20px;
    height: 20px;
    padding: 0 var(--spacing-1);
    font-size: var(--font-size-xs);
    font-weight: 600;
    color: var(--color-white);
    background-color: var(--color-danger);
    border-radius: var(--radius-full);
    margin-left: auto;
}

@media (max-width: 480px) {
    .metric-card {
        grid-column: span 12;
    }
}

/* Settings Page - Basecoat Compliant */
.settings-content {
    padding: var(--spacing-6);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-6);
}

.stats-overview-grid {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: var(--spacing-4);
}

.stat-card {
    grid-column: span 2;
    background-color: var(--color-white);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-xl);
    text-align: center;
}

.stat-content {
    padding: var(--spacing-4);
}

.stat-number {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--spacing-1);
}

.stat-number.stat-error {
    color: var(--color-danger);
}

.stat-label {
    font-size: var(--font-size-sm);
    color: var(--color-gray-500);
}

.settings-card {
    background-color: var(--color-white);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-xl);
    padding: var(--spacing-6);
}

.settings-card-header {
    margin-bottom: var(--spacing-6);
}

.settings-card-header h2 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin: 0 0 var(--spacing-1);
    color: var(--color-gray-900);
}

.settings-card-header p {
    color: var(--color-gray-500);
    margin: 0;
}

.settings-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-4);
}

.maintenance-section {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-6);
}

.maintenance-title {
    font-size: var(--font-size-base);
    font-weight: 500;
    margin: 0 0 var(--spacing-2);
    color: var(--color-gray-900);
}

.maintenance-description {
    font-size: var(--font-size-sm);
    color: var(--color-gray-500);
    margin: 0 0 var(--spacing-3);
}

.inline-form {
    display: inline-block;
}

.maintenance-actions {
    display: flex;
    gap: var(--spacing-2);
    flex-wrap: wrap;
}

.export-actions {
    display: flex;
    gap: var(--spacing-3);
    flex-wrap: wrap;
}

.categories-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-2);
}

.category-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    padding: var(--spacing-3);
    background-color: var(--color-gray-50);
    border-radius: var(--radius-lg);
}

.category-name {
    flex: 1;
    font-weight: 500;
    color: var(--color-gray-900);
}

.category-count {
    background-color: var(--color-gray-200);
    color: var(--color-gray-700);
    padding: var(--spacing-1) var(--spacing-2);
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    font-weight: 500;
}

.ai-config-section {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-4);
}

.config-description {
    font-size: var(--font-size-sm);
    color: var(--color-gray-500);
    margin: 0;
}

.config-code {
    padding: var(--spacing-1) var(--spacing-2);
    background-color: var(--color-gray-100);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    font-family: var(--font-family-mono, monospace);
}

.divider {
    border: none;
    border-top: 1px solid var(--color-gray-200);
    margin: var(--spacing-4) 0;
}

@media (max-width: 1024px) {
    .stat-card {
        grid-column: span 3;
    }
}

@media (max-width: 768px) {
    .stat-card {
        grid-column: span 4;
    }
}

@media (max-width: 640px) {
    .stat-card {
        grid-column: span 6;
    }
}

@media (max-width: 480px) {
    .stat-card {
        grid-column: span 12;
    }
}

/* Feedback Widget - Basecoat Compliant */
.feedback-widget {
    position: fixed;
    bottom: var(--spacing-4);
    right: var(--spacing-4);
    z-index: var(--z-modal);
}

.feedback-toggle {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background-color: var(--color-white);
    border: 1px solid var(--color-gray-200);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-normal);
}

.feedback-toggle:hover {
    background-color: var(--color-gray-50);
}

.feedback-panel {
    position: absolute;
    bottom: 56px;
    right: 0;
    width: 320px;
    background-color: var(--color-white);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    padding: var(--spacing-4);
}

.feedback-panel.hidden {
    display: none;
}

.feedback-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-3);
}

.feedback-header h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin: 0;
}

.feedback-close {
    background: none;
    border: none;
    padding: var(--spacing-1);
    cursor: pointer;
    color: var(--color-gray-500);
    border-radius: var(--radius-md);
    transition: color var(--transition-fast);
}

.feedback-close:hover {
    color: var(--color-gray-900);
}

.feedback-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-3);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-2);
}

.form-group label {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-gray-700);
}

.form-select,
.form-textarea {
    font-size: var(--font-size-sm);
    padding: var(--spacing-2) var(--spacing-3);
    border: 1px solid var(--color-gray-300);
    border-radius: var(--radius-md);
    background-color: var(--color-white);
    transition: border-color var(--transition-fast);
}

.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--color-primary);
}

.form-textarea {
    resize: vertical;
    min-height: 80px;
}

.rating-stars {
    display: flex;
    gap: var(--spacing-1);
}

.rating-star {
    background: none;
    border: none;
    padding: var(--spacing-1);
    cursor: pointer;
    color: var(--color-gray-400);
    transition: color var(--transition-fast);
}

.rating-star:hover {
    color: var(--color-warning);
}

.rating-star svg.rating-active {
    color: var(--color-warning);
    fill: var(--color-warning);
}

/* Loading Overlay */
.loading-overlay {
    display: none;
    position: fixed;
    inset: 0;
    z-index: var(--z-modal);
    align-items: center;
    justify-content: center;
    background-color: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
}

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

.loading-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-4);
    padding: var(--spacing-8);
    background-color: var(--color-white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    text-align: center;
}

.loading-spinner {
    width: 48px;
    height: 48px;
    border: 4px solid var(--color-gray-200);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

.loading-content h3 {
    margin: 0;
    font-size: var(--font-size-lg);
}

.loading-content p {
    margin: 0;
    color: var(--color-gray-500);
    font-size: var(--font-size-sm);
}

/* Bookmark Thumbnail */
.bookmark-thumbnail {
    width: 100%;
    height: 140px;
    margin-bottom: var(--spacing-3);
    border-radius: var(--radius-lg);
    overflow: hidden;
    background-color: var(--color-gray-100);
    position: relative;
}

.bookmark-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-normal);
    image-rendering: -webkit-optimize-contrast;
    image-rendering: crisp-edges;
}

.bookmark-card:hover .bookmark-thumbnail img {
    transform: scale(1.05);
}

.bookmark-thumbnail-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-gray-100) 0%, var(--color-gray-200) 100%);
}

.bookmark-thumbnail-placeholder svg {
    width: 32px;
    height: 32px;
    color: var(--color-gray-400);
}

/* Thumbnail loading state */
.bookmark-thumbnail img.loading {
    opacity: 0;
}

.bookmark-thumbnail img.loaded {
    opacity: 1;
    transition: opacity 0.3s ease;
}

/* Broken Links Badge */
.bookmark-card.is-broken {
    border-color: var(--color-danger);
    background-color: #fef2f2;
}

.broken-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-1);
    padding: 2px 8px;
    font-size: var(--font-size-xs);
    font-weight: 500;
    color: var(--color-danger);
    background-color: #fee2e2;
    border-radius: var(--radius-full);
}

.broken-badge svg {
    width: 12px;
    height: 12px;
}

/* Bulk Actions Bar */
.bulk-actions-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-3) var(--spacing-6);
    background-color: var(--color-danger);
    color: var(--color-white);
}

.bulk-actions-bar .btn {
    background-color: var(--color-white);
    color: var(--color-danger);
}

.bulk-actions-bar .btn:hover {
    background-color: var(--color-gray-100);
}