/* =============================================================================
   Knowledge Base Document Server - Styles
   ============================================================================= */

/* CSS Variables - Light theme */
:root {
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fa;
    --bg-tertiary: #e9ecef;
    --bg-elevated: #dee2e6;
    
    --text-primary: #212529;
    --text-secondary: #495057;
    --text-muted: #6c757d;
    
    --accent-primary: #00a67e;
    --accent-secondary: #0d8abc;
    --accent-warning: #f59e0b;
    --accent-danger: #ef4444;
    
    --border-color: #dee2e6;
    --border-light: #ced4da;
    
    --font-sans: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
    
    --sidebar-width: 280px;
    --header-height: 64px;
    --content-max-width: 900px;
    
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);
    
    --transition-fast: 0.15s ease;
    --transition-normal: 0.25s ease;
}

/* Reset & Base */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

a {
    color: var(--accent-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--accent-secondary);
}

/* =============================================================================
   Layout
   ============================================================================= */

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

/* Sidebar */
.sidebar {
    width: var(--sidebar-width);
    background: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    display: flex;
    flex-direction: column;
    z-index: 100;
}

.sidebar-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--text-primary);
    font-weight: 600;
}

.logo-icon {
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    color: var(--bg-primary);
    padding: 0.5rem;
    border-radius: var(--radius-md);
    font-family: var(--font-mono);
    font-size: 0.875rem;
    font-weight: 700;
}

.logo-text {
    font-size: 1rem;
}

.sidebar-nav {
    padding: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    color: var(--text-secondary);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

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

.nav-item.active {
    background: var(--bg-elevated);
    color: var(--accent-primary);
}

.nav-icon {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

/* Sidebar Tree Navigation */
.sidebar-tree {
    flex: 1;
    overflow-y: auto;
    padding: 0.5rem;
    border-top: 1px solid var(--border-color);
}

.tree-nav {
    display: flex;
    flex-direction: column;
    gap: 0.125rem;
}

.tree-item {
    display: flex;
    flex-direction: column;
}

.tree-doc {
    display: block;
    padding: 0.5rem 0.75rem;
    color: var(--text-secondary);
    font-size: 0.8125rem;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    line-height: 1.3;
}

.tree-doc:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.tree-doc.active {
    background: var(--bg-elevated);
    color: var(--accent-primary);
    font-weight: 500;
}

/* Tree doc wrapper for flex layout with toggle button */
.tree-doc-wrapper {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.tree-doc-wrapper .tree-doc {
    flex: 1;
}

/* Tree toggle button */
.tree-toggle {
    background: none;
    border: none;
    padding: 0.375rem;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--text-muted);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    flex-shrink: 0;
}

.tree-toggle:hover {
    background: var(--bg-tertiary);
    color: var(--text-secondary);
}

.chevron-icon {
    width: 16px;
    height: 16px;
    transition: transform var(--transition-normal);
}

/* Collapsed state */
.tree-item.collapsed .chevron-icon {
    transform: rotate(-90deg);
}

.tree-item.collapsed .tree-sections {
    display: none;
}

/* Inline sections under active document */
.tree-sections {
    display: flex;
    flex-direction: column;
    padding-left: 0.75rem;
    margin-left: 0.5rem;
    border-left: 1px solid var(--border-color);
    animation: expandSections var(--transition-normal) ease-out;
}

/* Smooth expand animation */
@keyframes expandSections {
    from {
        opacity: 0;
        max-height: 0;
    }
    to {
        opacity: 1;
        max-height: 2000px;
    }
}

.tree-section {
    display: block;
    padding: 0.25rem 0.5rem;
    color: var(--text-muted);
    font-size: 0.75rem;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    line-height: 1.3;
}

.tree-section:hover {
    background: var(--bg-tertiary);
    color: var(--text-secondary);
}

.tree-section.active {
    color: var(--accent-primary);
    background: var(--bg-tertiary);
}

.tree-section.level-3 {
    padding-left: 1rem;
    font-size: 0.7rem;
}

/* Main Content */
.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    min-height: 100vh;
}

.main-header {
    height: var(--header-height);
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    padding: 0 2rem;
    position: sticky;
    top: 0;
    z-index: 50;
}

.content-wrapper {
    max-width: var(--content-max-width);
    margin: 0 auto;
    padding: 2rem;
}

/* =============================================================================
   Search Box
   ============================================================================= */

.search-form {
    flex: 1;
    max-width: 500px;
}

.search-input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.search-icon {
    position: absolute;
    left: 1rem;
    width: 20px;
    height: 20px;
    color: var(--text-muted);
    pointer-events: none;
}

.search-input {
    flex: 1;
    min-width: 200px;
    padding: 0.75rem 1rem 0.75rem 2.75rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: 0.9375rem;
    transition: all var(--transition-fast);
}

.search-input:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(0, 212, 170, 0.1);
}

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

.header-search-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent-primary);
    border: none;
    border-radius: var(--radius-md);
    padding: 0.5rem 0.75rem;
    color: var(--bg-primary);
    cursor: pointer;
    transition: all var(--transition-fast);
    flex-shrink: 0;
}

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

/* Header Tag Dropdown */
.header-tag-dropdown {
    position: relative;
    margin-left: auto;
    margin-right: 0.5rem;
}

.header-tag-btn {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 0.375rem 0.5rem;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.header-tag-btn:hover {
    background: var(--bg-elevated);
    color: var(--text-primary);
}

.header-tag-label {
    font-size: 0.8125rem;
}

.header-tag-count {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 16px;
    height: 16px;
    padding: 0 4px;
    background: var(--accent-primary);
    color: var(--bg-primary);
    font-size: 0.625rem;
    font-weight: 600;
    border-radius: 8px;
}

.header-tag-menu {
    position: absolute;
    top: calc(100% + 4px);
    right: 0;
    min-width: 220px;
    max-height: 320px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    z-index: 1000;
    display: none;
    flex-direction: column;
}

.header-tag-menu.open {
    display: flex;
}

.header-tag-menu-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.5rem 0.75rem;
    border-bottom: 1px solid var(--border-color);
    font-size: 0.75rem;
    color: var(--text-muted);
}

.header-clear-tags {
    background: none;
    border: none;
    color: var(--accent-primary);
    font-size: 0.75rem;
    cursor: pointer;
    font-family: var(--font-sans);
}

.header-clear-tags:hover {
    text-decoration: underline;
}

.header-tag-list {
    overflow-y: auto;
    max-height: 260px;
    padding: 0.25rem;
}

.header-tag-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.375rem 0.5rem;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 0.8125rem;
    color: var(--text-secondary);
    transition: background var(--transition-fast);
}

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

.header-tag-item input[type="checkbox"] {
    width: 14px;
    height: 14px;
    accent-color: var(--accent-primary);
    cursor: pointer;
}

/* =============================================================================
   Home Page
   ============================================================================= */

.hero-section {
    text-align: center;
    padding: 3rem 0;
    margin-bottom: 2rem;
}

.hero-title {
    font-size: 2.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 1rem;
}

.hero-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

.section-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.section-title::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--border-color);
}

/* Document Grid */
.document-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.document-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    transition: all var(--transition-normal);
}

.document-card:hover {
    border-color: var(--accent-primary);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.document-card-header {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.document-number {
    background: var(--bg-elevated);
    color: var(--accent-primary);
    font-family: var(--font-mono);
    font-size: 0.875rem;
    font-weight: 600;
    padding: 0.375rem 0.75rem;
    border-radius: var(--radius-md);
    flex-shrink: 0;
}

.document-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.4;
}

.document-summary {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.document-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: auto;
    padding-top: 0.75rem;
    border-top: 1px solid var(--border-color);
}

.section-count {
    font-size: 0.8125rem;
    color: var(--text-muted);
}

.document-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.375rem;
}

.tag {
    background: var(--bg-elevated);
    color: var(--text-secondary);
    font-size: 0.75rem;
    padding: 0.25rem 0.5rem;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

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

/* Tags Cloud */
.tags-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-bottom: 3rem;
}

.tag-link {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-lg);
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

.tag-link:hover {
    border-color: var(--accent-primary);
    color: var(--accent-primary);
}

.tag-count {
    color: var(--text-muted);
    font-size: 0.875em;
}

/* Quick Links */
.quick-links-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

.quick-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

.quick-link:hover {
    border-color: var(--accent-primary);
    color: var(--accent-primary);
}

.quick-link svg {
    width: 24px;
    height: 24px;
    flex-shrink: 0;
}

/* =============================================================================
   Document Page
   ============================================================================= */

.document {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.document-header {
    padding: 2rem;
    border-bottom: 1px solid var(--border-color);
}

.breadcrumbs {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-bottom: 1rem;
}

.breadcrumbs a {
    color: var(--text-secondary);
}

.breadcrumbs .separator {
    margin: 0 0.5rem;
}

.document-header .document-title {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.document-content {
    padding: 2rem;
}

/* Markdown Content Styles */
.document-content h1 {
    font-size: 2rem;
    margin: 2rem 0 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border-color);
}

.document-content h2 {
    font-size: 1.5rem;
    margin: 2rem 0 1rem;
    color: var(--accent-primary);
}

.document-content h3 {
    font-size: 1.25rem;
    margin: 1.5rem 0 0.75rem;
}

.document-content h4 {
    font-size: 1.125rem;
    margin: 1.25rem 0 0.5rem;
}

.document-content p {
    margin-bottom: 1rem;
}

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

.document-content li {
    margin-bottom: 0.5rem;
}

.document-content code {
    font-family: var(--font-mono);
    background: var(--bg-elevated);
    padding: 0.125rem 0.375rem;
    border-radius: var(--radius-sm);
    font-size: 0.875em;
}

.document-content pre {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 1rem;
    overflow-x: auto;
    margin: 1rem 0;
}

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

.document-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 1rem 0;
}

.document-content th,
.document-content td {
    border: 1px solid var(--border-color);
    padding: 0.75rem;
    text-align: left;
}

.document-content th {
    background: var(--bg-elevated);
    font-weight: 600;
}

/* Scroll margin for anchor links to account for fixed header */
.document-content tr[id] {
    scroll-margin-top: calc(var(--header-height) + 100px);
}

/* Also apply to headings for consistency */
.document-content h1[id],
.document-content h2[id],
.document-content h3[id],
.document-content h4[id] {
    scroll-margin-top: calc(var(--header-height) + 40px);
}

.document-content blockquote {
    border-left: 4px solid var(--accent-primary);
    padding-left: 1rem;
    margin: 1rem 0;
    color: var(--text-secondary);
}

.document-content mark {
    background: rgba(0, 212, 170, 0.2);
    color: var(--accent-primary);
    padding: 0.125rem 0.25rem;
    border-radius: var(--radius-sm);
}

.document-content hr {
    border: none;
    border-top: 1px solid var(--border-color);
    margin: 2rem 0;
}

/* Related Trading Signals Section Styling */
.signals-section {
    background: #e8f8f5;
    border: 1px solid var(--accent-primary);
    border-left: 4px solid var(--accent-primary);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    margin: 1.5rem 0;
    box-shadow: 0 2px 8px rgba(0, 166, 126, 0.15);
}

.signals-section h4 {
    color: var(--accent-primary);
    margin-top: 0;
    margin-bottom: 1rem;
    font-size: 1.125rem;
    font-weight: 600;
}

.signals-section .signal-name {
    display: block;
    color: var(--accent-secondary);
    font-size: 1rem;
    font-weight: 600;
    margin-top: 1.25rem;
    margin-bottom: 0.5rem;
    padding-bottom: 0.25rem;
    border-bottom: 1px solid var(--border-color);
}

.signals-section .signal-name:first-of-type {
    margin-top: 0.75rem;
}

.signals-section p {
    margin-bottom: 0.75rem;
}

.signals-section strong {
    color: var(--text-primary);
}

/* Anchor Links */
.anchor-link {
    opacity: 0;
    margin-left: 0.5rem;
    color: var(--text-muted);
    transition: opacity var(--transition-fast);
}

h2:hover .anchor-link,
h3:hover .anchor-link {
    opacity: 1;
}

/* Document Footer */
.document-footer {
    padding: 1.5rem 2rem;
    border-top: 1px solid var(--border-color);
    background: var(--bg-tertiary);
}

.document-pagination {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
}

.pagination-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    flex: 1;
    max-width: 45%;
    transition: all var(--transition-fast);
}

.pagination-link:hover {
    border-color: var(--accent-primary);
    color: var(--text-primary);
}

.pagination-link.next {
    flex-direction: row-reverse;
    text-align: right;
}

.pagination-link svg {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

.pagination-text {
    overflow: hidden;
}

.pagination-label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    display: block;
}

.pagination-title {
    font-weight: 500;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    display: block;
}

/* =============================================================================
   Search Page
   ============================================================================= */

.search-page {
    max-width: 800px;
}

.search-header {
    margin-bottom: 2rem;
}

.page-title {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
}

.search-form-large {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.search-controls {
    display: flex;
    gap: 0.75rem;
    align-items: stretch;
}

.search-input-large-wrapper {
    flex: 1;
    position: relative;
    display: flex;
    align-items: center;
}

.search-input-large-wrapper .search-icon {
    left: 1.25rem;
}

.search-input-large {
    width: 100%;
    padding: 1rem 1.25rem 1rem 3.25rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: 1.125rem;
}

.search-input-large:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(0, 212, 170, 0.1);
}

/* Tag dropdown */
.tag-dropdown-wrapper {
    position: relative;
}

.tag-dropdown-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0 1.25rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    color: var(--text-secondary);
    font-family: var(--font-sans);
    font-size: 0.9375rem;
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
    height: 100%;
}

.tag-dropdown-btn:hover {
    border-color: var(--accent-primary);
    color: var(--text-primary);
}

.tag-count-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 20px;
    height: 20px;
    padding: 0 6px;
    background: var(--accent-primary);
    color: var(--bg-primary);
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 10px;
}

.dropdown-arrow {
    transition: transform var(--transition-fast);
}

.tag-dropdown-menu {
    position: absolute;
    top: calc(100% + 4px);
    right: 0;
    min-width: 280px;
    max-height: 400px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    z-index: 1000;
    display: none;
    flex-direction: column;
}

.tag-dropdown-menu.open {
    display: flex;
}

.tag-dropdown-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--border-color);
    font-size: 0.8125rem;
    color: var(--text-muted);
}

.clear-tags-btn {
    background: none;
    border: none;
    color: var(--accent-primary);
    font-size: 0.8125rem;
    cursor: pointer;
    font-family: var(--font-sans);
}

.clear-tags-btn:hover {
    text-decoration: underline;
}

.tag-dropdown-list {
    overflow-y: auto;
    max-height: 320px;
    padding: 0.5rem;
}

.tag-dropdown-item {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    padding: 0.5rem 0.75rem;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: background var(--transition-fast);
}

.tag-dropdown-item:hover {
    background: var(--bg-tertiary);
}

.tag-dropdown-item input[type="checkbox"] {
    width: 16px;
    height: 16px;
    accent-color: var(--accent-primary);
    cursor: pointer;
}

.tag-dropdown-item .tag-name {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.tag-dropdown-item:hover .tag-name {
    color: var(--text-primary);
}

.search-button {
    background: var(--accent-primary);
    color: var(--bg-primary);
    border: none;
    padding: 1rem 2rem;
    border-radius: var(--radius-lg);
    font-family: var(--font-sans);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.search-button:hover {
    background: var(--accent-secondary);
}

/* Old tag filter styles removed - using dropdown now */

/* Search Results */
.search-results {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.results-meta {
    padding: 1rem 1.5rem;
    background: var(--bg-tertiary);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.results-count {
    font-weight: 500;
}

.query-expanded {
    font-size: 0.875rem;
    color: var(--text-muted);
}

.query-expanded code {
    background: var(--bg-elevated);
    padding: 0.25rem 0.5rem;
    border-radius: var(--radius-sm);
    font-family: var(--font-mono);
    font-size: 0.8125rem;
}

.results-list {
    list-style: none;
}

.result-item {
    border-bottom: 1px solid var(--border-color);
}

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

.result-link {
    display: block;
    padding: 1.25rem 1.5rem;
    color: var(--text-primary);
    transition: background var(--transition-fast);
}

.result-link:hover {
    background: var(--bg-tertiary);
}

.result-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 0.5rem;
}

.result-title {
    font-size: 1.125rem;
    font-weight: 500;
}

.result-section {
    color: var(--text-secondary);
    font-weight: 400;
}

.result-type {
    font-size: 0.75rem;
    padding: 0.25rem 0.5rem;
    border-radius: var(--radius-sm);
    background: var(--bg-elevated);
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.result-type.document {
    background: rgba(14, 165, 233, 0.1);
    color: var(--accent-secondary);
}

.result-type.section {
    background: rgba(0, 212, 170, 0.1);
    color: var(--accent-primary);
}

.result-snippet {
    font-size: 0.9375rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 0.75rem;
}

.result-snippet mark {
    background: rgba(0, 212, 170, 0.2);
    color: var(--accent-primary);
    padding: 0.125rem 0.25rem;
    border-radius: var(--radius-sm);
}

.result-tags {
    display: flex;
    gap: 0.375rem;
}

.tag-small {
    font-size: 0.6875rem;
    background: var(--bg-elevated);
    color: var(--text-muted);
    padding: 0.125rem 0.375rem;
    border-radius: var(--radius-sm);
}

/* No Results */
.no-results {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--text-muted);
}

.no-results svg {
    width: 64px;
    height: 64px;
    margin-bottom: 1.5rem;
    opacity: 0.5;
}

.no-results h2 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
}

/* Search Tips */
.search-tips {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 2rem;
}

.search-tips h2 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
}

.search-tips ul {
    list-style: none;
}

.search-tips li {
    padding: 0.5rem 0;
    color: var(--text-secondary);
}

.search-tips code {
    background: var(--bg-elevated);
    padding: 0.125rem 0.5rem;
    border-radius: var(--radius-sm);
    font-family: var(--font-mono);
    font-size: 0.875rem;
}

/* =============================================================================
   Glossary Page
   ============================================================================= */

.glossary-page {
    max-width: 800px;
}

.glossary-header {
    margin-bottom: 2rem;
}

.page-subtitle {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.alpha-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.alpha-link {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-weight: 600;
    transition: all var(--transition-fast);
}

.alpha-link:hover {
    border-color: var(--accent-primary);
    color: var(--accent-primary);
}

.glossary-section {
    margin-bottom: 2rem;
}

.letter-heading {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent-primary);
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--accent-primary);
    margin-bottom: 1rem;
}

.glossary-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.glossary-entry {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 1rem 1.25rem;
}

.glossary-entry .term {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.glossary-entry .abbreviation {
    color: var(--accent-primary);
    font-weight: 400;
}

.glossary-entry .definition {
    color: var(--text-secondary);
    font-size: 0.9375rem;
    line-height: 1.6;
}

.backlinks,
.related-terms {
    margin-top: 0.75rem;
    font-size: 0.875rem;
}

.backlinks-label,
.related-label {
    color: var(--text-muted);
    margin-right: 0.5rem;
}

.backlink,
.related-link {
    color: var(--accent-secondary);
}

.view-more {
    display: inline-block;
    margin-top: 0.75rem;
    font-size: 0.875rem;
    color: var(--accent-primary);
}

/* =============================================================================
   Tag Page
   ============================================================================= */

.tag-page {
    display: flex;
    flex-direction: column;
}

.tag-header {
    margin-bottom: 2rem;
}

.tag-badge {
    display: inline-block;
    background: var(--accent-primary);
    color: var(--bg-primary);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-md);
}

.tag-content {
    display: grid;
    grid-template-columns: 1fr 250px;
    gap: 2rem;
}

.document-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.document-card.horizontal {
    flex-direction: row;
}

.document-card.horizontal .document-card-content {
    flex: 1;
}

.tag-sidebar {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    height: fit-content;
    position: sticky;
    top: calc(var(--header-height) + 1rem);
}

.sidebar-title {
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    margin-bottom: 1rem;
}

.all-tags-list {
    display: flex;
    flex-direction: column;
    gap: 0.375rem;
}

.tag-item {
    display: flex;
    justify-content: space-between;
    padding: 0.5rem 0.75rem;
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    transition: all var(--transition-fast);
}

.tag-item:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.tag-item.active {
    background: var(--bg-elevated);
    color: var(--accent-primary);
}

.tag-item .count {
    color: var(--text-muted);
}

/* =============================================================================
   TOC Page - Table of Contents
   ============================================================================= */

.toc-page {
    max-width: 900px;
}

.toc-content {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 2rem;
}

.toc-content h1 {
    font-size: 1.75rem;
    margin-bottom: 0.75rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--accent-primary);
}

.toc-content h1:not(:first-child) {
    margin-top: 2.5rem;
}

.toc-content h1 a {
    color: var(--accent-primary);
    transition: color var(--transition-fast);
}

.toc-content h1 a:hover {
    color: var(--accent-secondary);
}

.toc-content h2 {
    font-size: 1rem;
    margin-top: 1.25rem;
    margin-bottom: 0.375rem;
}

.toc-content h2 a {
    color: var(--text-primary);
    transition: color var(--transition-fast);
}

.toc-content h2 a:hover {
    color: var(--accent-primary);
}

.toc-content > p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 0.5rem;
    font-size: 0.9375rem;
}

.toc-content hr {
    border: none;
    border-top: 1px solid var(--border-color);
    margin: 2rem 0;
}

/* Collapsible descriptions */
.collapsible-desc {
    position: relative;
}

.expand-btn {
    background: none;
    border: none;
    color: var(--accent-primary);
    cursor: pointer;
    font-size: 0.875rem;
    padding: 0;
    margin-left: 0.25rem;
    font-family: var(--font-sans);
}

.expand-btn:hover {
    color: var(--accent-secondary);
    text-decoration: underline;
}

/* =============================================================================
   Responsive Design
   ============================================================================= */

@media (max-width: 1024px) {
    .sidebar {
        transform: translateX(-100%);
        transition: transform var(--transition-normal);
    }
    
    .sidebar.open {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .tag-content {
        grid-template-columns: 1fr;
    }
    
    .tag-sidebar {
        position: static;
    }
}

@media (max-width: 640px) {
    .document-grid {
        grid-template-columns: 1fr;
    }
    
    .document-pagination {
        flex-direction: column;
    }
    
    .pagination-link {
        max-width: 100%;
    }
    
    .hero-title {
        font-size: 1.75rem;
    }
}