:root {
    /* Default: Claude Classic Theme */
    --color-bg: #f5f5f0;
    --color-surface: #ffffff;
    --color-surface-hover: #fafaf8;
    --color-border: #e5e5dc;
    --color-border-light: #ebebeb;
    
    --color-primary: #2c2c2c;
    --color-secondary: #6b6b6b;
    --color-tertiary: #9b9b9b;
    
    --color-accent: #c17d3a;
    --color-accent-hover: #a86d2f;
    --color-accent-dim: rgba(193, 125, 58, 0.1);
    
    --color-success: #10b981;
    --color-danger: #ef4444;
    --color-warning: #f59e0b;
    
    --font-mono: 'JetBrains Mono', monospace;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    
    --sidebar-width: 240px;
    --topbar-height: 64px;
    
    --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.12);
}

/* Theme: Warm Elegance */
[data-theme="warm-elegance"] {
    --color-bg: #faf8f5;
    --color-surface: #ffffff;
    --color-surface-hover: #fefdfb;
    --color-border: #e8e4df;
    --color-border-light: #f0ede8;
    
    --color-primary: #2d2a26;
    --color-secondary: #6d6760;
    --color-tertiary: #9d9890;
    
    --color-accent: #d97706;
    --color-accent-hover: #b45309;
    --color-accent-dim: rgba(217, 119, 6, 0.1);
}

/* Theme: Cool Minimal */
[data-theme="cool-minimal"] {
    --color-bg: #f8f9fa;
    --color-surface: #ffffff;
    --color-surface-hover: #f1f3f5;
    --color-border: #e1e4e8;
    --color-border-light: #ebeef1;
    
    --color-primary: #1a1f2e;
    --color-secondary: #5c6370;
    --color-tertiary: #8b92a0;
    
    --color-accent: #0969da;
    --color-accent-hover: #0550ae;
    --color-accent-dim: rgba(9, 105, 218, 0.1);
}

/* Theme: Natural Calm */
[data-theme="natural-calm"] {
    --color-bg: #f7f9f7;
    --color-surface: #ffffff;
    --color-surface-hover: #f3f6f3;
    --color-border: #e3e8e3;
    --color-border-light: #edf0ed;
    
    --color-primary: #1f2d1f;
    --color-secondary: #5a6b5a;
    --color-tertiary: #8a9b8a;
    
    --color-accent: #059669;
    --color-accent-hover: #047857;
    --color-accent-dim: rgba(5, 150, 105, 0.1);
}

/* Theme: High Contrast */
[data-theme="high-contrast"] {
    --color-bg: #ffffff;
    --color-surface: #fafafa;
    --color-surface-hover: #f5f5f5;
    --color-border: #e0e0e0;
    --color-border-light: #ebebeb;
    
    --color-primary: #000000;
    --color-secondary: #525252;
    --color-tertiary: #858585;
    
    --color-accent: #2563eb;
    --color-accent-hover: #1d4ed8;
    --color-accent-dim: rgba(37, 99, 235, 0.1);
}

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

body {
    font-family: var(--font-sans);
    background: var(--color-bg);
    color: var(--color-primary);
    line-height: 1.5;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ===== LEFT SIDEBAR ===== */
.app-sidebar {
    position: fixed;
    left: 0;
    top: 0;
    width: var(--sidebar-width);
    height: 100vh;
    background: var(--color-surface);
    border-right: 1px solid var(--color-border);
    display: flex;
    flex-direction: column;
    z-index: 1000;
}

.sidebar-header {
    padding: 1.25rem 1rem;
    border-bottom: 1px solid var(--color-border);
}

.sidebar-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-family: var(--font-mono);
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-primary);
    letter-spacing: -0.01em;
}

.sidebar-logo svg {
    width: 24px;
    height: 24px;
    color: var(--color-accent);
}

.sidebar-nav {
    flex: 1;
    overflow-y: auto;
    padding: 0.5rem;
}

.sidebar-nav::-webkit-scrollbar {
    width: 4px;
}

.sidebar-nav::-webkit-scrollbar-track {
    background: transparent;
}

.sidebar-nav::-webkit-scrollbar-thumb {
    background: var(--color-border);
    border-radius: 2px;
}

.sidebar-nav::-webkit-scrollbar-thumb:hover {
    background: var(--color-tertiary);
}

.nav-category-link {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    padding: 0.5rem 0.75rem;
    margin-bottom: 0.125rem;
    color: var(--color-secondary);
    text-decoration: none;
    border-radius: 6px;
    transition: var(--transition-fast);
    font-size: 0.8125rem;
    font-weight: 500;
    cursor: pointer;
    border: 1px solid transparent;
}

.nav-category-link:hover {
    background: var(--color-surface-hover);
    color: var(--color-primary);
}

.nav-category-link.active {
    background: var(--color-accent-dim);
    color: var(--color-accent);
    border-color: var(--color-accent);
}

.nav-category-icon {
    font-size: 0.875rem;
    width: 16px;
    text-align: center;
    flex-shrink: 0;
}

.nav-category-count {
    margin-left: auto;
    font-size: 0.6875rem;
    font-family: var(--font-mono);
    color: var(--color-tertiary);
    background: var(--color-border-light);
    padding: 0.125rem 0.375rem;
    border-radius: 4px;
}

.nav-category-link.active .nav-category-count {
    background: var(--color-accent);
    color: var(--color-bg);
}

.sidebar-footer {
    padding: 0.75rem;
    border-top: 1px solid var(--color-border);
}

.sidebar-admin-link {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    padding: 0.625rem 0.75rem;
    color: var(--color-tertiary);
    text-decoration: none;
    border-radius: 6px;
    transition: var(--transition-fast);
    font-size: 0.8125rem;
    font-weight: 500;
}

.sidebar-admin-link:hover {
    background: var(--color-surface-hover);
    color: var(--color-primary);
}

.sidebar-admin-link i {
    font-size: 0.875rem;
}

.loading-sidebar {
    text-align: center;
    padding: 2rem 0;
}

.loading-spinner-small {
    width: 24px;
    height: 24px;
    border: 2px solid var(--color-border);
    border-top-color: var(--color-accent);
    border-radius: 50%;
    margin: 0 auto;
    animation: spin 0.8s linear infinite;
}

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

/* ===== MAIN CONTENT AREA ===== */
.app-main {
    margin-left: var(--sidebar-width);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.admin-body .app-main {
    height: 100vh;
    overflow: hidden;
}

/* ===== TOP BAR ===== */
.top-bar {
    position: sticky;
    top: 0;
    height: var(--topbar-height);
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 1.5rem;
    gap: 1rem;
    z-index: 100;
    backdrop-filter: blur(8px);
}

.search-wrapper {
    flex: 1;
    max-width: 480px;
    position: relative;
    display: flex;
    align-items: center;
}

.search-icon {
    position: absolute;
    left: 0.875rem;
    color: var(--color-tertiary);
    font-size: 0.875rem;
    pointer-events: none;
}

.search-input {
    width: 100%;
    height: 36px;
    padding: 0 2.5rem 0 2.25rem;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 6px;
    color: var(--color-primary);
    font-family: var(--font-sans);
    font-size: 0.8125rem;
    transition: var(--transition-fast);
}

.search-input:focus {
    outline: none;
    border-color: var(--color-accent);
    background: var(--color-surface);
}

.search-input::placeholder {
    color: var(--color-tertiary);
}

.clear-btn {
    position: absolute;
    right: 0.5rem;
    width: 24px;
    height: 24px;
    background: none;
    border: none;
    color: var(--color-tertiary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
    transition: var(--transition-fast);
}

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

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

.top-bar-actions .theme-selector {
    flex-shrink: 0;
}

.theme-selector {
    position: relative;
}

.theme-btn {
    width: 36px;
    height: 36px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    color: var(--color-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 6px;
    transition: var(--transition-fast);
    font-size: 0.9375rem;
}

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

.theme-dropdown {
    position: absolute;
    top: calc(100% + 0.5rem);
    right: 0;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    box-shadow: var(--shadow-lg);
    min-width: 220px;
    z-index: 1000;
    display: none;
    overflow: hidden;
}

.theme-dropdown.active {
    display: block;
    animation: slideDown 0.2s ease-out;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.theme-dropdown-header {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--color-border);
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--color-primary);
}

.theme-option {
    padding: 0.75rem 1rem;
    cursor: pointer;
    transition: var(--transition-fast);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    border-left: 3px solid transparent;
}

.theme-option:hover {
    background: var(--color-surface-hover);
}

.theme-option.active {
    background: var(--color-accent-dim);
    border-left-color: var(--color-accent);
}

.theme-option-color {
    width: 20px;
    height: 20px;
    border-radius: 4px;
    border: 1px solid var(--color-border);
    flex-shrink: 0;
}

.theme-option-info {
    flex: 1;
    min-width: 0;
}

.theme-option-name {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-primary);
    margin-bottom: 0.125rem;
}

.theme-option-desc {
    font-size: 0.75rem;
    color: var(--color-tertiary);
}

.theme-option-check {
    color: var(--color-accent);
    font-size: 0.875rem;
    opacity: 0;
}

.theme-option.active .theme-option-check {
    opacity: 1;
}

.view-controls {
    display: flex;
    gap: 0.25rem;
    background: var(--color-bg);
    padding: 0.25rem;
    border-radius: 6px;
    border: 1px solid var(--color-border);
}

.view-btn {
    width: 32px;
    height: 32px;
    background: transparent;
    border: none;
    color: var(--color-tertiary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
    transition: var(--transition-fast);
    font-size: 0.875rem;
}

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

.view-btn.active {
    background: var(--color-accent);
    color: var(--color-bg);
}

/* ===== CONTENT AREA ===== */
.content-area {
    flex: 1;
    padding: 1.5rem;
    overflow-y: auto;
}

.category-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    padding: 1.25rem;
    margin-bottom: 1.5rem;
    scroll-margin-top: calc(var(--topbar-height) + 1rem);
}

.category-header {
    margin-bottom: 1rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--color-border);
}

.category-title {
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: 0.25rem;
    letter-spacing: -0.01em;
}

.category-description {
    font-size: 0.8125rem;
    color: var(--color-tertiary);
}

/* ===== BOOKMARKS GRID ===== */
.bookmarks-grid {
    display: grid;
    gap: 0.75rem;
}

/* Responsive Grid */
@media (min-width: 1400px) {
    .bookmarks-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

@media (min-width: 1024px) and (max-width: 1399px) {
    .bookmarks-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (min-width: 640px) and (max-width: 1023px) {
    .bookmarks-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 639px) {
    .bookmarks-grid {
        grid-template-columns: 1fr;
    }
}

/* List View */
.bookmarks-grid.list-view {
    grid-template-columns: 1fr !important;
}

.bookmarks-grid.list-view .bookmark-item {
    flex-direction: row;
    align-items: center;
}

/* Compact View */
.bookmarks-grid.compact-view {
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)) !important;
    gap: 0.5rem;
}

.bookmarks-grid.compact-view .bookmark-item {
    padding: 0.75rem;
}

.bookmarks-grid.compact-view .bookmark-icon {
    width: 32px;
    height: 32px;
    font-size: 0.875rem;
}

.bookmarks-grid.compact-view .bookmark-title {
    font-size: 0.8125rem;
}

.bookmarks-grid.compact-view .bookmark-description {
    font-size: 0.75rem;
    -webkit-line-clamp: 2;
}

.bookmarks-grid.compact-view .bookmark-url {
    font-size: 0.6875rem;
}

/* ===== BOOKMARK ITEM ===== */
.bookmark-item {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 6px;
    padding: 0.875rem;
    text-decoration: none;
    color: var(--color-primary);
    transition: var(--transition-fast);
    display: flex;
    flex-direction: column;
    gap: 0.625rem;
    cursor: pointer;
}

.bookmark-item:hover {
    border-color: var(--color-accent);
    background: var(--color-surface-hover);
    transform: translateY(-1px);
}

.bookmark-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.bookmark-icon {
    width: 36px;
    height: 36px;
    background: var(--color-accent-dim);
    color: var(--color-accent);
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    flex-shrink: 0;
}

.bookmark-title {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-primary);
    line-height: 1.4;
}

.bookmark-description {
    font-size: 0.8125rem;
    color: var(--color-secondary);
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.bookmark-url {
    font-size: 0.75rem;
    font-family: var(--font-mono);
    color: var(--color-tertiary);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* ===== LOADING ===== */
.loading {
    text-align: center;
    padding: 4rem 2rem;
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--color-border);
    border-top-color: var(--color-accent);
    border-radius: 50%;
    margin: 0 auto 1rem;
    animation: spin 0.8s linear infinite;
}

.loading p {
    color: var(--color-tertiary);
    font-size: 0.875rem;
}

/* ===== MOBILE ===== */
.mobile-menu-toggle {
    display: none;
    position: fixed;
    bottom: 1.5rem;
    right: 1.5rem;
    width: 48px;
    height: 48px;
    background: var(--color-accent);
    color: var(--color-bg);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    box-shadow: var(--shadow-lg);
    z-index: 999;
    align-items: center;
    justify-content: center;
    transition: var(--transition-base);
}

.mobile-menu-toggle:hover {
    transform: scale(1.05);
}

.mobile-menu-toggle:active {
    transform: scale(0.95);
}

@media (max-width: 768px) {
    .app-sidebar {
        transform: translateX(-100%);
        transition: transform var(--transition-base);
        box-shadow: var(--shadow-lg);
    }
    
    .app-sidebar.active {
        transform: translateX(0);
    }
    
    .app-main {
        margin-left: 0;
    }
    
    .top-bar {
        padding: 0 1rem;
    }
    
    .top-bar-actions {
        gap: 0.25rem;
    }
    
    .top-bar-actions .theme-btn {
        width: 32px;
        height: 32px;
    }
    
    .search-wrapper {
        max-width: none;
    }
    
    .view-controls {
        display: none;
    }
    
    .top-bar-actions {
        gap: 0;
    }
    
    .top-bar-actions .theme-selector {
        margin-left: 0.25rem;
    }
    
    .content-area {
        padding: 1rem;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .bookmarks-grid {
        grid-template-columns: 1fr !important;
    }
}

/* ===== ADMIN STYLES ===== */
.admin-body {
    background: var(--color-bg);
}

/* Login Screen */
.login-screen {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

.login-container {
    width: 100%;
    max-width: 450px;
}

.login-card {
    background: var(--color-surface);
    border-radius: 20px;
    padding: 3rem;
    box-shadow: 0 20px 60px var(--color-shadow);
    text-align: center;
    animation: fadeInUp 0.6s ease-out;
}

.login-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--color-accent), var(--color-primary));
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 2rem;
    font-size: 2rem;
    color: white;
}

.login-title {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 0.5rem;
}

.login-subtitle {
    color: var(--color-text-light);
    margin-bottom: 2rem;
}

.login-btn {
    width: 100%;
    padding: 1rem 2rem;
    background: var(--color-primary);
    color: white;
    border: none;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    transition: var(--transition);
}

.login-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px var(--color-shadow);
}

/* Admin Panel */
.admin-panel {
    width: 100%;
    min-height: 100vh;
    display: block;
    position: relative;
    background: var(--color-bg);
    overflow-x: hidden;
}

/* Remove old sidebar styles - no longer needed */
.sidebar {
    display: none;
}

/* Admin Content Wrapper */
.admin-content-wrapper {
    flex: 1;
    display: flex;
    position: relative;
    overflow: hidden;
}

/* Admin Independent Navigation Sidebar */
.admin-nav-sidebar {
    position: fixed;
    left: 0;
    top: 0;
    width: 280px;
    height: 100vh;
    background: var(--color-surface);
    border-right: 1px solid var(--color-border);
    display: flex;
    flex-direction: column;
    z-index: 900;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.admin-nav-sidebar-header {
    padding: 2rem 1.5rem 1rem;
    border-bottom: 1px solid var(--color-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.admin-nav-sidebar-title {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-primary);
}

.admin-nav-sidebar-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--color-text-light);
    font-size: 1.25rem;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 8px;
    transition: var(--transition);
}

.admin-nav-sidebar-toggle:hover {
    background: var(--color-hover);
    color: var(--color-accent);
}

.admin-nav-sidebar-menu {
    flex: 1;
    overflow-y: auto;
    padding: 1.5rem;
}

/* Custom scrollbar for admin sidebar */
.admin-nav-sidebar-menu::-webkit-scrollbar {
    width: 6px;
}

.admin-nav-sidebar-menu::-webkit-scrollbar-track {
    background: transparent;
}

.admin-nav-sidebar-menu::-webkit-scrollbar-thumb {
    background: var(--color-border);
    border-radius: 3px;
}

.admin-nav-sidebar-menu::-webkit-scrollbar-thumb:hover {
    background: var(--color-accent);
}

.admin-category-nav-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    color: var(--color-secondary);
    text-decoration: none;
    border-radius: 8px;
    transition: var(--transition-fast);
    font-size: 0.875rem;
    cursor: pointer;
    border: 1px solid transparent;
    margin-bottom: 0.25rem;
    user-select: none;
}

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

.admin-category-nav-item.active {
    background: var(--color-accent-dim);
    border-color: var(--color-accent);
    color: var(--color-accent);
}

.admin-category-nav-item-icon {
    font-size: 1rem;
    min-width: 20px;
    text-align: center;
}

.admin-category-nav-item-name {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-weight: 500;
}

.admin-category-nav-item-count {
    background: var(--color-border-light);
    color: var(--color-tertiary);
    font-size: 0.6875rem;
    font-family: var(--font-mono);
    padding: 0.125rem 0.375rem;
    border-radius: 4px;
    font-weight: 600;
    min-width: 24px;
    text-align: center;
}

.admin-category-nav-item.active .admin-category-nav-item-count {
    background: var(--color-accent);
    color: var(--color-bg);
}

/* Mobile Sidebar Toggle */
.admin-mobile-sidebar-toggle {
    display: none;
    position: fixed;
    left: 290px;
    top: 1.5rem;
    z-index: 850;
    background: var(--color-accent);
    color: white;
    border: none;
    padding: 0.75rem 1.25rem;
    border-radius: 12px;
    font-family: var(--font-body);
    font-size: 0.9375rem;
    font-weight: 600;
    cursor: pointer;
    box-shadow: 0 4px 12px rgba(201, 169, 97, 0.3);
    transition: var(--transition);
    gap: 0.5rem;
    align-items: center;
}

.admin-mobile-sidebar-toggle:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(201, 169, 97, 0.4);
}

.admin-mobile-sidebar-toggle i {
    font-size: 1rem;
}

/* Admin Main */
.admin-main {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    margin-left: 280px; /* Add left margin for fixed sidebar */
}

/* Admin Top Bar - Similar to homepage */
.admin-top-bar {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--color-surface);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border);
    padding: 0 1.5rem;
    height: var(--topbar-height);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: nowrap;
}

.admin-search-wrapper {
    flex: 1;
    max-width: 480px;
    position: relative;
    display: flex;
    align-items: center;
}

.admin-search-wrapper .search-icon {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--color-text-light);
    font-size: 0.875rem;
    pointer-events: none;
}

.admin-search-input {
    width: 100%;
    padding: 0.625rem 2.5rem 0.625rem 2.5rem;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    font-family: var(--font-body);
    font-size: 0.875rem;
    color: var(--color-text);
    transition: var(--transition);
}

.admin-search-input:focus {
    outline: none;
    border-color: var(--color-accent);
    background: var(--color-surface);
}

.admin-search-input::placeholder {
    color: var(--color-text-light);
}

.admin-search-wrapper .clear-btn {
    position: absolute;
    right: 0.5rem;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--color-text-light);
    cursor: pointer;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    transition: var(--transition);
}

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

.admin-actions-group {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-shrink: 0;
    flex-wrap: nowrap;
}

/* User Info Dropdown in Top Bar */
.user-info-dropdown {
    position: relative;
}

.user-info-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0.75rem;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition);
    font-family: var(--font-body);
    font-size: 0.875rem;
    color: var(--color-text);
}

.user-info-btn:hover {
    background: var(--color-hover);
    border-color: var(--color-accent);
}

.user-avatar-small {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    object-fit: cover;
}

.user-name-small {
    font-weight: 500;
    max-width: 120px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.user-info-btn i {
    font-size: 0.75rem;
    color: var(--color-text-light);
    transition: var(--transition);
}

.user-info-dropdown.active .user-info-btn i {
    transform: rotate(180deg);
}

.user-dropdown {
    position: absolute;
    top: calc(100% + 0.5rem);
    right: 0;
    min-width: 240px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    box-shadow: 0 8px 24px var(--color-shadow);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: var(--transition);
    z-index: 1000;
}

.user-info-dropdown.active .user-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.user-dropdown-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem;
}

.user-avatar-large {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    object-fit: cover;
}

.user-dropdown-info {
    flex: 1;
    min-width: 0;
}

.user-dropdown-name {
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--color-text);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

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

.user-dropdown-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    width: 100%;
    padding: 0.75rem 1rem;
    background: none;
    border: none;
    color: var(--color-text);
    font-family: var(--font-body);
    font-size: 0.875rem;
    cursor: pointer;
    transition: var(--transition);
    text-align: left;
}

.user-dropdown-item:hover {
    background: var(--color-hover);
}

.user-dropdown-item i {
    width: 16px;
    text-align: center;
    color: var(--color-text-light);
}

.user-dropdown-item:hover i {
    color: var(--color-accent);
}

/* Admin Content Area */
.admin-content {
    flex: 1;
    overflow-y: auto;
    padding: 1.5rem;
}

/* Legacy styles for backward compatibility */
.admin-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    gap: 2rem;
    flex-wrap: wrap;
}

.admin-header-actions {
    display: flex;
    gap: 1rem;
    align-items: center;
    flex: 1;
    justify-content: flex-end;
}

.admin-search-box {
    display: flex;
    align-items: center;
    background: var(--color-surface);
    border: 2px solid var(--color-border);
    border-radius: 10px;
    padding: 0.5rem 1rem;
    gap: 0.5rem;
    transition: var(--transition);
    max-width: 300px;
    flex: 1;
}

.admin-search-box:focus-within {
    border-color: var(--color-accent);
}

.admin-search-box i {
    color: var(--color-accent);
    font-size: 0.875rem;
}

.admin-title {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-primary);
}

/* Buttons */
.btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition);
    font-size: 0.875rem;
}

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

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px var(--color-shadow);
}

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

.btn-secondary:hover {
    background: var(--color-text-light);
    color: white;
}

.btn-danger {
    background: #ef4444;
    color: white;
}

.btn-danger:hover {
    background: #dc2626;
}

.btn-small {
    padding: 0.5rem 1rem;
    font-size: 0.75rem;
}

/* Admin Content */
.admin-content {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.admin-category-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    padding: 1.25rem;
    margin-bottom: 1.5rem;
    scroll-margin-top: calc(var(--topbar-height) + 1rem);
}

.admin-category-header {
    display: flex;
    justify-content: space-between;
    align-items: start;
    margin-bottom: 1rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--color-border);
}

.admin-category-info h3 {
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: 0.25rem;
    letter-spacing: -0.01em;
}

.admin-category-info p {
    color: var(--color-tertiary);
    font-size: 0.8125rem;
}

.admin-category-actions {
    display: flex;
    gap: 0.25rem;
    flex-shrink: 0;
}

.admin-bookmarks-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 0.75rem;
}

.admin-bookmark-item {
    background: var(--color-hover);
    border-radius: 12px;
    padding: 1.25rem;
    border: 2px solid transparent;
    transition: var(--transition);
}

.admin-bookmark-item:hover {
    border-color: var(--color-accent);
}

.admin-bookmark-header {
    display: flex;
    justify-content: space-between;
    align-items: start;
    margin-bottom: 0.75rem;
}

.admin-bookmark-icon {
    width: 40px;
    height: 40px;
    background: var(--color-accent);
    color: white;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
}

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

.admin-bookmark-title {
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: 0.5rem;
}

.admin-bookmark-url {
    font-size: 0.75rem;
    color: var(--color-accent);
    word-break: break-all;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    z-index: 1000;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    animation: fadeIn 0.3s ease-out;
}

.modal.active {
    display: flex;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.modal-content {
    background: var(--color-surface);
    border-radius: 16px;
    width: 100%;
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
    animation: slideUp 0.3s ease-out;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 2rem;
    border-bottom: 1px solid var(--color-border);
}

.modal-header h2 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-primary);
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--color-text-light);
    cursor: pointer;
    padding: 0;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    transition: var(--transition);
}

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

.modal-form {
    padding: 2rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: 0.5rem;
    font-size: 0.875rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid var(--color-border);
    border-radius: 8px;
    font-family: var(--font-body);
    font-size: 0.875rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-accent);
}

.form-hint {
    display: block;
    margin-top: 0.5rem;
    font-size: 0.75rem;
    color: var(--color-text-light);
}

.form-hint a {
    color: var(--color-accent);
    text-decoration: none;
}

.form-hint a:hover {
    text-decoration: underline;
}

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

/* Responsive */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .search-container {
        margin-top: 1.5rem;
    }
    
    .content-wrapper {
        padding: 1rem;
        flex-direction: column;
    }
    
    .nav-sidebar {
        position: fixed;
        top: 0;
        left: 0;
        width: 280px;
        height: 100vh;
        max-height: 100vh;
        z-index: 100;
        transform: translateX(-100%);
        transition: transform 0.3s ease-out;
        border-radius: 0;
        animation: none;
    }
    
    .nav-sidebar.active {
        transform: translateX(0);
    }
    
    .nav-sidebar-toggle {
        display: flex;
    }
    
    .mobile-sidebar-toggle {
        display: flex;
    }
    
    .bookmarks-grid,
    .admin-bookmarks-grid {
        grid-template-columns: 1fr;
    }
    
    .admin-panel {
        min-height: auto;
    }
    
    .sidebar {
        display: none; /* Hide old sidebar on mobile */
    }
    
    .admin-top-bar {
        flex-direction: column;
        align-items: stretch;
        padding: 1rem;
        gap: 0.75rem;
    }
    
    .admin-search-wrapper {
        width: 100%;
        max-width: 100%;
    }
    
    .admin-actions-group {
        flex-wrap: wrap;
        gap: 0.5rem;
        margin-left: 0;
        width: 100%;
        justify-content: flex-end;
    }
    
    .user-name-small {
        display: none; /* Hide username on mobile to save space */
    }
    
    .user-info-dropdown {
        order: 999; /* Keep user info at the end */
    }
    
    .btn span {
        display: none; /* Hide button text on mobile */
    }
    
    .btn {
        padding: 0.625rem 0.875rem; /* Adjust padding for icon-only buttons */
    }
    
    .admin-header {
        flex-direction: column;
        gap: 1rem;
        align-items: flex-start;
    }
    
    /* Admin Independent Sidebar - Mobile */
    .admin-nav-sidebar {
        position: fixed;
        left: 0;
        width: 280px;
        transform: translateX(-100%);
        z-index: 1000;
    }
    
    .admin-nav-sidebar.active {
        transform: translateX(0);
    }
    
    .admin-nav-sidebar-toggle {
        display: block;
    }
    
    .admin-mobile-sidebar-toggle {
        display: flex;
        left: 1rem;
    }
    
    .admin-main {
        margin-left: 0;
    }
    
    .admin-content {
        padding: 1rem;
    }
}

/* Sidebar Overlay for Mobile */
.sidebar-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    z-index: 99;
    animation: fadeIn 0.3s ease-out;
}

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

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .search-box {
        padding: 0.625rem 1.25rem;
    }
    
    .search-input {
        font-size: 0.9375rem;
    }
}