/* Smartipedia */

:root {
    /* Exa.ai-inspired light mode — clean whites, soft grays */
    --bg: #fafafa;
    --bg-card: #ffffff;
    --bg-card-hover: #ffffff;
    --bg-input: #ffffff;
    --bg-input-focus: #ffffff;
    --bg-code: #f3f4f6;
    --bg-th: #f9fafb;
    --text: #111827;
    --text-muted: #6b7280;
    --text-light: #9ca3af;
    --border: #e5e7eb;
    --border-hover: #d1d5db;
    --nav-bg: rgba(255, 255, 255, 0.95);
    --nav-icon: #374151;
    --badge-bg: #f3f4f6;
    --badge-text: #6b7280;
    --tooltip-bg: #ffffff;
    --tooltip-text: #111827;
    --tooltip-border: #e5e7eb;
    --blockquote-border: #e5e7eb;
    --footer-sep: #d1d5db;
    --cosmic-dot: rgba(0, 0, 0, 0.06);
    --link-color: #2563eb;
    --radius: 12px;
    --max-width: 900px;
    --font-serif: 'Libre Baskerville', 'Garamond', 'Georgia', serif;
    --font-sans: ui-sans-serif, system-ui, -apple-system, sans-serif;
    --font-mono: "SF Mono", "Fira Code", "Consolas", monospace;
    --font-size-base: 1rem;
}

/* Dark mode — Exa.ai-inspired charcoal */
.dark {
    --bg: #111111;
    --bg-card: #1a1a1a;
    --bg-card-hover: #222222;
    --bg-input: #1a1a1a;
    --bg-input-focus: #222222;
    --bg-code: #1e1e1e;
    --bg-th: #1a1a1a;
    --text: #f3f4f6;
    --text-muted: #9ca3af;
    --text-light: #6b7280;
    --border: #2a2a2a;
    --border-hover: #404040;
    --nav-bg: rgba(17, 17, 17, 0.95);
    --nav-icon: #d1d5db;
    --badge-bg: #2a2a2a;
    --badge-text: #9ca3af;
    --tooltip-bg: #1a1a1a;
    --tooltip-text: #f3f4f6;
    --tooltip-border: #2a2a2a;
    --blockquote-border: #2a2a2a;
    --footer-sep: #404040;
    --cosmic-dot: rgba(255, 255, 255, 0.04);
    --link-color: #60a5fa;
}

/* Text size */
.text-sm  { --font-size-base: 0.9rem; }
.text-md  { --font-size-base: 1rem; }
.text-lg  { --font-size-base: 1.15rem; }

@import url('https://fonts.googleapis.com/css2?family=Libre+Baskerville:ital,wght@0,400;0,700;1,400&display=swap');

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

body {
    font-family: var(--font-sans);
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    transition: background 0.3s, color 0.3s;
}

/* Cosmic background */
.cosmic-bg {
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: var(--bg);
    background-image:
        radial-gradient(2px 2px at 20% 30%, var(--cosmic-dot), transparent),
        radial-gradient(2px 2px at 60% 70%, var(--cosmic-dot), transparent),
        radial-gradient(1px 1px at 50% 50%, var(--cosmic-dot), transparent),
        radial-gradient(1px 1px at 80% 10%, var(--cosmic-dot), transparent),
        radial-gradient(2px 2px at 90% 40%, var(--cosmic-dot), transparent),
        radial-gradient(1px 1px at 33% 80%, var(--cosmic-dot), transparent),
        radial-gradient(1px 1px at 70% 90%, var(--cosmic-dot), transparent),
        radial-gradient(2px 2px at 10% 50%, var(--cosmic-dot), transparent),
        radial-gradient(1px 1px at 40% 20%, var(--cosmic-dot), transparent);
    background-size: 200% 200%;
    animation: cosmic-drift 60s ease-in-out infinite;
    z-index: -1;
    transition: background 0.3s;
}
@keyframes cosmic-drift {
    0%, 100% { background-position: 0% 0%; }
    50% { background-position: 100% 100%; }
}

/* ==================== NAV ==================== */
.nav {
    position: sticky;
    top: 0; width: 100%;
    background: var(--nav-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
    z-index: 100;
    transition: background 0.3s, border-color 0.3s;
}
.nav-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}
.nav-left {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}
.nav-logo {
    font-family: var(--font-serif);
    font-size: 1.25rem;
    font-weight: 400;
    color: var(--text);
    text-decoration: none;
}
.version-badge {
    display: inline-block;
    padding: 0.125rem 0.5rem;
    background: var(--badge-bg);
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 400;
    color: var(--badge-text);
    font-family: var(--font-sans);
}
.nav-right {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}
.nav-center { flex: 1; display: flex; justify-content: center; }
.nav-search-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text-light);
    cursor: pointer;
    font-size: 0.85rem;
    font-family: var(--font-sans);
    min-width: 240px;
    transition: border-color 0.2s;
}
.nav-search-btn:hover { border-color: var(--border-hover); }
.nav-search-text { flex: 1; text-align: left; }
.nav-search-kbd {
    font-size: 0.7rem;
    padding: 0.15rem 0.4rem;
    background: var(--badge-bg);
    border-radius: 4px;
    color: var(--text-muted);
    font-family: var(--font-sans);
}
.nav-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 36px; height: 36px;
    color: var(--nav-icon);
    text-decoration: none;
    border-radius: 9999px;
    border: none;
    background: none;
    cursor: pointer;
    transition: opacity 0.2s;
    font-size: 0.95rem;
    font-family: var(--font-sans);
    font-weight: 500;
    white-space: nowrap;
}
.nav-btn:hover { opacity: 0.6; }
.nav-btn svg { width: 18px; height: 18px; }
.suggest-btn {
    padding: 0.4rem 0.85rem;
    border: 1px solid var(--border);
    font-size: 0.82rem;
    font-weight: 500;
}
.suggest-btn:hover { border-color: var(--border-hover); }

/* ==================== CONTAINER ==================== */
.container {
    position: relative;
    z-index: 1;
    flex: 1;
}

/* ==================== HERO ==================== */
.hero {
    min-height: calc(100vh - 9rem);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem 1rem;
}
.hero-content {
    text-align: center;
    max-width: 800px;
    width: 100%;
}
.hero-header {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 3rem;
}
.hero h1 {
    font-family: var(--font-serif);
    font-size: 3rem;
    font-weight: 400;
    color: var(--text);
    letter-spacing: -0.02em;
}
.hero .version-badge {
    margin-left: 0.75rem;
    padding: 0.25rem 0.75rem;
    font-size: 0.875rem;
}

/* Search bar */
.hero-search {
    max-width: 600px;
    margin: 0 auto 3rem;
    position: relative;
}
.hero-search input {
    width: 100%;
    padding: 1rem;
    font-size: 1rem;
    font-family: var(--font-sans);
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text);
    transition: border-color 0.2s, background 0.2s;
}
.hero-search input::placeholder { color: var(--text-light); }
.hero-search input:focus {
    outline: none;
    border-color: var(--border-hover);
    background: var(--bg-input-focus);
}
.hero-search button { display: none; }

/* Article count */
.article-count { margin-top: 2rem; }
.article-count-label {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
}
.article-count-number {
    font-size: 1.5rem;
    font-weight: 400;
    color: var(--text);
}

/* ==================== TOPIC GRID ==================== */
.inner-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 2rem 1.5rem;
}
.topic-section { margin-bottom: 3rem; }
.topic-section h2 {
    font-family: var(--font-serif);
    font-size: 1.25rem;
    font-weight: 400;
    margin-bottom: 1rem;
}
.topic-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 1rem;
}
.topic-card {
    display: block;
    padding: 1.25rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    text-decoration: none;
    color: var(--text);
    transition: border-color 0.2s, background 0.2s;
}
.topic-card:hover {
    border-color: var(--border-hover);
    background: var(--bg-card-hover);
}
.topic-card h3 {
    font-family: var(--font-serif);
    font-size: 0.95rem;
    font-weight: 400;
    margin-bottom: 0.5rem;
}
.topic-card p {
    font-size: 0.85rem;
    color: var(--text-muted);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.topic-views {
    font-size: 0.75rem;
    color: var(--text-light);
    margin-top: 0.5rem;
    display: block;
}

/* ==================== 3-COLUMN TOPIC LAYOUT ==================== */
.topic-layout {
    display: grid;
    grid-template-columns: 220px minmax(0, 700px) 260px;
    gap: 2rem;
    max-width: 1280px;
    margin: 0 auto;
    padding: 2rem 1.5rem;
    align-items: start;
}

/* ==================== TOC SIDEBAR (LEFT) ==================== */
.toc-sidebar {
    position: sticky;
    top: 5rem;
    max-height: calc(100vh - 6rem);
    overflow-y: auto;
}
.toc-nav {
    padding-right: 1rem;
}
.toc-topic-title {
    font-family: var(--font-serif);
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    color: var(--text);
    padding-left: 0.75rem;
    border-left: 2px solid var(--text);
}
.toc-list a {
    display: block;
    padding: 0.3rem 0 0.3rem 0.75rem;
    font-size: 0.8rem;
    color: var(--text-muted);
    text-decoration: none;
    border-left: 2px solid transparent;
    transition: all 0.15s;
    line-height: 1.4;
}
.toc-list a:hover {
    color: var(--text);
}
.toc-list a.active {
    color: var(--text);
    border-left-color: var(--text);
    font-weight: 500;
}
.toc-list a.toc-h3 {
    padding-left: 1.5rem;
    font-size: 0.75rem;
}

/* ==================== TOPIC ARTICLE (CENTER) ==================== */
.topic-article {
    min-width: 0;
}
/* Topic hero image */
.topic-hero-image {
    width: 100%;
    aspect-ratio: 16 / 7;
    object-fit: cover;
    border-radius: var(--radius);
    margin-bottom: 1.5rem;
    background: var(--bg-code);
}

.topic-factcheck {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-bottom: 1rem;
}
.topic-factcheck svg {
    color: var(--text-muted);
    flex-shrink: 0;
}
.topic-header h1 {
    font-family: var(--font-serif);
    font-size: 2rem;
    font-weight: 400;
    margin-bottom: 0.5rem;
    letter-spacing: -0.01em;
}
.topic-meta {
    display: flex;
    gap: 1rem;
    align-items: center;
    color: var(--text-muted);
    font-size: 0.8rem;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border);
}
.btn-edit {
    margin-left: auto;
    padding: 0.25rem 0.75rem;
    border: 1px solid var(--border);
    border-radius: 9999px;
    text-decoration: none;
    color: var(--text-muted);
    font-size: 0.8rem;
    transition: all 0.2s;
}
.btn-edit:hover {
    border-color: var(--border-hover);
    color: var(--text);
}

/* ==================== INFOBOX SIDEBAR (RIGHT) ==================== */
.infobox-sidebar {
    position: sticky;
    top: 5rem;
}
.infobox {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
}
.infobox-title {
    font-family: var(--font-serif);
    font-size: 0.95rem;
    font-weight: 400;
    padding: 1rem;
    text-align: center;
    border-bottom: 1px solid var(--border);
}
.infobox-table {
    width: 100%;
    border-collapse: collapse;
}
.infobox-table tr {
    border-bottom: 1px solid var(--border);
}
.infobox-table tr:last-child { border-bottom: none; }
.infobox-key {
    padding: 0.6rem 0.75rem;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-muted);
    width: 40%;
    vertical-align: top;
}
.infobox-value {
    padding: 0.6rem 0.75rem;
    font-size: 0.8rem;
    color: var(--text);
    text-align: right;
}

/* Article content */
.topic-content {
    font-size: var(--font-size-base);
    line-height: 1.75;
    transition: font-size 0.2s;
}
.topic-content h1 {
    font-family: var(--font-serif);
    font-size: 1.75em;
    font-weight: 400;
    margin-top: 2.5rem;
    margin-bottom: 0.75rem;
}
.topic-content h2 {
    font-family: var(--font-serif);
    font-size: 1.4em;
    font-weight: 400;
    margin-top: 2rem;
    margin-bottom: 0.75rem;
}
.topic-content h3 {
    font-family: var(--font-serif);
    font-size: 1.15em;
    font-weight: 400;
    margin-top: 1.5rem;
    margin-bottom: 0.5rem;
}
.topic-content p { margin-bottom: 1rem; }
.topic-content ul, .topic-content ol {
    margin-bottom: 1rem;
    padding-left: 1.5rem;
}
.topic-content li { margin-bottom: 0.35rem; }
.topic-content table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 1rem;
}
.topic-content th, .topic-content td {
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--border);
    text-align: left;
}
.topic-content th {
    background: var(--bg-th);
    font-weight: 600;
}
.topic-content blockquote {
    border-left: 3px solid var(--blockquote-border);
    padding-left: 1rem;
    color: var(--text-muted);
    margin-bottom: 1rem;
}
.topic-content code {
    background: var(--bg-code);
    padding: 0.15em 0.4em;
    border-radius: 4px;
    font-size: 0.9em;
}
.topic-content pre {
    background: #1e1e1e;
    color: #d4d4d4;
    padding: 1rem;
    border-radius: var(--radius);
    overflow-x: auto;
    margin-bottom: 1rem;
}
.topic-content pre code { background: none; padding: 0; }
.topic-content a {
    color: var(--text);
    text-decoration: underline;
    text-underline-offset: 2px;
}
.topic-content a:hover { text-decoration-color: var(--text-light); }
.topic-content strong { font-weight: 600; }

/* ==================== FOOTNOTE CITATIONS ==================== */
.footnote-ref {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 0.7em;
    min-width: 1.4em;
    height: 1.4em;
    padding: 0 0.3em;
    background: var(--badge-bg);
    color: var(--text-muted);
    border-radius: 4px;
    cursor: pointer;
    position: relative;
    vertical-align: super;
    text-decoration: none;
    font-weight: 600;
    transition: background 0.15s;
    line-height: 1;
}
.footnote-ref:hover {
    background: var(--border-hover);
    color: var(--text);
}

/* Source tooltip */
.source-tooltip {
    position: fixed;
    z-index: 9999;
    max-width: 360px;
    padding: 0.75rem 1rem;
    background: var(--tooltip-bg);
    color: var(--tooltip-text);
    border: 1px solid var(--tooltip-border);
    border-radius: 10px;
    font-size: 0.82rem;
    line-height: 1.5;
    box-shadow: 0 8px 32px rgba(0,0,0,0.12);
    pointer-events: none;
    opacity: 0;
    transform: translateY(4px);
    transition: opacity 0.15s, transform 0.15s;
}
.source-tooltip.visible {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}
.source-tooltip-title {
    font-weight: 600;
    margin-bottom: 0.25rem;
    display: block;
    color: var(--tooltip-text);
}
.source-tooltip-snippet {
    color: var(--text-muted);
    display: block;
    margin-bottom: 0.35rem;
}
.source-tooltip-url {
    font-size: 0.75rem;
    color: var(--text-light);
    text-decoration: underline;
    word-break: break-all;
}

/* ==================== KEYWORD LINKS ==================== */
.keyword-link {
    color: var(--text);
    text-decoration: underline;
    text-decoration-style: dotted;
    text-underline-offset: 3px;
    text-decoration-color: var(--text-light);
    cursor: pointer;
    position: relative;
    transition: text-decoration-color 0.15s;
}
.keyword-link:hover {
    text-decoration-style: solid;
    text-decoration-color: var(--text);
}

/* Keyword tooltip */
.keyword-tooltip {
    position: fixed;
    z-index: 9998;
    max-width: 320px;
    padding: 0.75rem 1rem;
    background: var(--tooltip-bg);
    color: var(--tooltip-text);
    border: 1px solid var(--tooltip-border);
    border-radius: 10px;
    font-size: 0.82rem;
    line-height: 1.5;
    box-shadow: 0 8px 32px rgba(0,0,0,0.12);
    opacity: 0;
    transform: translateY(4px);
    transition: opacity 0.15s, transform 0.15s;
    pointer-events: none;
}
.keyword-tooltip.visible {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}
.keyword-tooltip-title {
    font-weight: 600;
    margin-bottom: 0.3rem;
    display: block;
    color: var(--tooltip-text);
}
.keyword-tooltip-desc {
    display: block;
    margin-bottom: 0.4rem;
    color: var(--text-muted);
}
.keyword-tooltip-link {
    font-size: 0.75rem;
    color: var(--link-color);
    text-decoration: underline;
}

/* ==================== SOURCES SECTION ==================== */
.topic-sources {
    margin-top: 2.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border);
}
.topic-sources h2 {
    font-family: var(--font-serif);
    font-size: 1.15rem;
    font-weight: 400;
    margin-bottom: 0.75rem;
}
.topic-sources ol { padding-left: 1.5rem; }
.topic-sources li {
    margin-bottom: 0.75rem;
    font-size: 0.9rem;
}
.topic-sources a {
    color: var(--text);
    text-decoration: underline;
    text-underline-offset: 2px;
}
.topic-sources a:hover { text-decoration-color: var(--text-light); }
.topic-sources p {
    color: var(--text-muted);
    font-size: 0.8rem;
    margin-top: 0.25rem;
}

/* ==================== GRAPH PAGE ==================== */
.graph-page {
    display: flex;
    flex-direction: column;
    height: calc(100vh - 4rem);
}
.graph-header {
    padding: 1.5rem 1.5rem 0;
    text-align: center;
}
.graph-header h1 {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    font-weight: 400;
}
.graph-subtitle {
    color: var(--text-muted);
    font-size: 0.85rem;
    margin-top: 0.25rem;
}
.graph-container {
    flex: 1;
    position: relative;
    margin: 1rem;
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid var(--border);
    background: var(--bg-card);
}
.graph-container canvas {
    width: 100%;
    height: 100%;
    display: block;
}
.graph-tooltip {
    display: none;
    position: fixed;
    z-index: 9999;
    max-width: 280px;
    padding: 0.6rem 0.85rem;
    background: var(--tooltip-bg);
    color: var(--tooltip-text);
    border: 1px solid var(--tooltip-border);
    border-radius: 8px;
    font-size: 0.8rem;
    line-height: 1.5;
    box-shadow: 0 8px 24px rgba(0,0,0,0.12);
    pointer-events: none;
}

/* ==================== RELATED ==================== */
.topic-related {
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border);
}
.topic-related h2 {
    font-family: var(--font-serif);
    font-size: 1.15rem;
    font-weight: 400;
    margin-bottom: 0.75rem;
}
.related-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}
.related-link {
    padding: 0.4rem 0.75rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 9999px;
    text-decoration: none;
    color: var(--text);
    font-size: 0.85rem;
    transition: all 0.2s;
}
.related-link:hover {
    border-color: var(--border-hover);
    background: var(--bg-card-hover);
}

/* ==================== EDIT PAGE ==================== */
.edit-page {
    max-width: 700px;
    margin: 0 auto;
    padding: 3rem 1.5rem;
}
.edit-page h1 {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    font-weight: 400;
    margin-bottom: 1.5rem;
}
.edit-form textarea {
    width: 100%;
    padding: 1rem;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-family: var(--font-mono);
    font-size: 0.9rem;
    line-height: 1.5;
    resize: vertical;
    background: var(--bg-input);
    color: var(--text);
}
.edit-form textarea:focus {
    outline: none;
    border-color: var(--border-hover);
    background: var(--bg-input-focus);
}
.edit-controls {
    display: flex;
    gap: 0.75rem;
    align-items: center;
    margin-top: 1rem;
}
.edit-controls input {
    flex: 1;
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 0.9rem;
    font-family: var(--font-sans);
    background: var(--bg-input);
    color: var(--text);
}
.edit-controls input:focus {
    outline: none;
    border-color: var(--border-hover);
}
.edit-buttons { display: flex; gap: 0.5rem; }
.btn-cancel {
    padding: 0.5rem 1rem;
    border: 1px solid var(--border);
    border-radius: 9999px;
    text-decoration: none;
    color: var(--text-muted);
    font-size: 0.9rem;
    transition: all 0.2s;
}
.btn-cancel:hover { border-color: var(--border-hover); }
.btn-save {
    padding: 0.5rem 1rem;
    background: var(--text);
    color: var(--bg);
    border: none;
    border-radius: 9999px;
    cursor: pointer;
    font-size: 0.9rem;
    font-family: var(--font-sans);
    transition: opacity 0.2s;
}
.btn-save:hover { opacity: 0.8; }

/* ==================== SEARCH PAGE ==================== */
.search-page {
    max-width: 700px;
    margin: 0 auto;
    padding: 3rem 1.5rem;
}
.search-page h1 {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    font-weight: 400;
    margin-bottom: 1.5rem;
}
.search-result {
    display: block;
    padding: 1rem 0;
    border-bottom: 1px solid var(--border);
    text-decoration: none;
    color: var(--text);
    transition: opacity 0.2s;
}
.search-result:hover { opacity: 0.7; }
.search-result h3 {
    font-family: var(--font-serif);
    font-size: 1rem;
    font-weight: 400;
    margin-bottom: 0.25rem;
}
.search-result p {
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* ==================== STATS PAGE ==================== */
.stats-page {
    max-width: 960px;
    margin: 0 auto;
    padding: 3rem 1.5rem;
}
.stats-page h1 {
    font-family: var(--font-serif);
    font-size: 2rem;
    font-weight: 400;
    text-align: center;
}
.stats-subtitle {
    text-align: center;
    color: var(--text-muted);
    margin-bottom: 2.5rem;
    font-size: 0.9rem;
}
.stats-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
    gap: 1rem;
    margin-bottom: 3rem;
}
.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.25rem;
    text-align: center;
}
.stat-number {
    display: block;
    font-size: 1.75rem;
    font-weight: 600;
    color: var(--text);
    line-height: 1.2;
}
.stat-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-top: 0.25rem;
    display: block;
}
.stats-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}
.stats-wide { grid-column: 1 / -1; }
.stats-section h2 {
    font-family: var(--font-serif);
    font-size: 1.1rem;
    font-weight: 400;
    margin-bottom: 1rem;
}
.stats-table {
    width: 100%;
    border-collapse: collapse;
}
.stats-table th {
    text-align: left;
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--border);
}
.stats-table td {
    padding: 0.5rem 0;
    font-size: 0.85rem;
    border-bottom: 1px solid var(--border);
}
.stats-table a {
    color: var(--link-color);
    text-decoration: none;
}
.stats-table a:hover { text-decoration: underline; }
.stats-count { text-align: right; color: var(--text-muted); }
.stats-editor { font-weight: 500; }
.stats-empty { color: var(--text-light); font-size: 0.85rem; }

/* Quality dots */
.quality-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--border);
    font-size: 0.85rem;
}
.quality-label { display: flex; align-items: center; gap: 0.5rem; }
.quality-dot {
    width: 8px; height: 8px;
    border-radius: 50%;
    display: inline-block;
}
.quality-generated { background: var(--text-light); }
.quality-reviewed { background: #3b82f6; }
.quality-verified { background: #22c55e; }
.quality-disputed { background: #f59e0b; }
.quality-outdated { background: #ef4444; }
.quality-count { color: var(--text-muted); }

/* Activity feed */
.activity-list { display: flex; flex-direction: column; }
.activity-item {
    display: flex;
    align-items: baseline;
    gap: 0.5rem;
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--border);
    font-size: 0.85rem;
    flex-wrap: wrap;
}
.activity-editor { font-weight: 500; }
.activity-summary { color: var(--text-muted); }
.activity-topic { color: var(--link-color); text-decoration: none; }
.activity-topic:hover { text-decoration: underline; }
.activity-time { color: var(--text-light); font-size: 0.75rem; margin-left: auto; }

/* Missing topics in stats */
.missing-list { display: flex; flex-direction: column; gap: 0.25rem; }
.missing-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.4rem 0;
    border-bottom: 1px solid var(--border);
}
.missing-form { margin: 0; }
.missing-btn {
    background: none;
    border: none;
    color: var(--link-color);
    cursor: pointer;
    font-size: 0.85rem;
    font-family: var(--font-sans);
    padding: 0;
}
.missing-btn:hover { text-decoration: underline; }
.missing-count { font-size: 0.75rem; color: var(--text-light); }

@media (max-width: 768px) {
    .stats-grid { grid-template-columns: 1fr; }
    .stats-cards { grid-template-columns: repeat(3, 1fr); }
}

/* ==================== SUGGEST PAGE ==================== */
.suggest-page {
    max-width: 600px;
    margin: 0 auto;
    padding: 4rem 1.5rem;
    text-align: center;
}
.suggest-page h1 {
    font-family: var(--font-serif);
    font-size: 2rem;
    font-weight: 400;
    margin-bottom: 0.5rem;
}
.suggest-desc {
    color: var(--text-muted);
    margin-bottom: 2rem;
}
.suggest-form {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 3rem;
}
.suggest-form input {
    flex: 1;
    padding: 0.85rem 1rem;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 1rem;
    font-family: var(--font-sans);
    background: var(--bg-input);
    color: var(--text);
}
.suggest-form input:focus {
    outline: none;
    border-color: var(--border-hover);
    background: var(--bg-input-focus);
}
.suggest-form button {
    padding: 0.85rem 1.5rem;
    background: var(--text);
    color: var(--bg);
    border: none;
    border-radius: var(--radius);
    font-size: 0.95rem;
    font-family: var(--font-sans);
    font-weight: 500;
    cursor: pointer;
    white-space: nowrap;
}
.suggest-form button:hover { opacity: 0.85; }
.suggest-missing {
    text-align: left;
}
.suggest-missing h2 {
    font-family: var(--font-serif);
    font-size: 1.15rem;
    font-weight: 400;
    margin-bottom: 0.25rem;
}
.suggest-missing-desc {
    color: var(--text-muted);
    font-size: 0.85rem;
    margin-bottom: 1rem;
}
.suggest-missing-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}
.suggest-missing-item { margin: 0; }
.suggest-missing-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0.85rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 9999px;
    cursor: pointer;
    font-family: var(--font-sans);
    color: var(--text);
    font-size: 0.85rem;
    transition: border-color 0.2s;
}
.suggest-missing-btn:hover { border-color: var(--border-hover); }
.suggest-missing-title { font-weight: 500; }
.suggest-missing-count {
    font-size: 0.7rem;
    color: var(--text-light);
}

/* Not found */
.not-found {
    text-align: center;
    padding: 6rem 1rem;
}
.not-found h1 {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    font-weight: 400;
    margin-bottom: 1rem;
}
.not-found p { margin-bottom: 1.5rem; color: var(--text-muted); }
.not-found .hero-search { margin-bottom: 0; }

/* ==================== FOOTER ==================== */
.footer {
    text-align: center;
    padding: 2rem 1.5rem;
    position: relative;
    z-index: 10;
}
.footer-content {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    flex-wrap: wrap;
}
.footer a {
    font-size: 0.875rem;
    color: var(--text-muted);
    text-decoration: none;
    transition: opacity 0.2s;
}
.footer a:hover { opacity: 0.8; text-decoration: underline; }
.footer-sep {
    color: var(--footer-sep);
    font-size: 0.875rem;
    user-select: none;
}

/* ==================== CMD+K MODAL ==================== */
.cmdk-overlay {
    position: fixed;
    inset: 0;
    z-index: 9999;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding-top: 20vh;
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
}
.cmdk-dialog {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    width: 560px;
    max-width: 90vw;
    box-shadow: 0 16px 64px rgba(0,0,0,0.3);
    overflow: hidden;
}
.cmdk-input-wrap {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--border);
}
.cmdk-input-wrap svg { color: var(--text-muted); flex-shrink: 0; }
.cmdk-input-wrap input {
    flex: 1;
    background: none;
    border: none;
    outline: none;
    font-size: 1rem;
    font-family: var(--font-sans);
    color: var(--text);
}
.cmdk-input-wrap input::placeholder { color: var(--text-light); }
.cmdk-esc {
    font-size: 0.7rem;
    padding: 0.15rem 0.4rem;
    background: var(--badge-bg);
    border-radius: 4px;
    color: var(--text-muted);
}
.cmdk-results {
    max-height: 320px;
    overflow-y: auto;
}
.cmdk-result {
    display: block;
    padding: 0.75rem 1rem;
    text-decoration: none;
    color: var(--text);
    border-bottom: 1px solid var(--border);
    transition: background 0.1s;
}
.cmdk-result:hover, .cmdk-result.selected {
    background: var(--bg-card-hover);
}
.cmdk-result-title {
    display: block;
    font-size: 0.9rem;
    font-weight: 500;
}
.cmdk-result-summary {
    display: block;
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 0.15rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.cmdk-no-results {
    padding: 1.5rem;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.9rem;
}
.cmdk-generate {
    margin-top: 0.75rem;
}
.cmdk-generate button {
    padding: 0.5rem 1rem;
    background: var(--text);
    color: var(--bg);
    border: none;
    border-radius: 9999px;
    cursor: pointer;
    font-size: 0.85rem;
    font-family: var(--font-sans);
}
.cmdk-generate button:hover { opacity: 0.8; }
.cmdk-footer {
    display: flex;
    gap: 1.25rem;
    padding: 0.5rem 1rem;
    border-top: 1px solid var(--border);
    font-size: 0.7rem;
    color: var(--text-light);
}
.cmdk-footer kbd {
    font-size: 0.65rem;
    padding: 0.1rem 0.3rem;
    background: var(--badge-bg);
    border-radius: 3px;
    margin-right: 0.2rem;
}

/* ==================== KEYWORD LINKS (more prominent) ==================== */
.keyword-link {
    color: var(--link-color);
    text-decoration: none;
    border-bottom: 1px solid transparent;
    cursor: pointer;
    transition: border-color 0.15s;
}
.keyword-link:hover {
    border-bottom-color: currentColor;
}

/* ==================== RESPONSIVE ==================== */
@media (max-width: 1100px) {
    .topic-layout {
        grid-template-columns: 1fr;
        max-width: 700px;
    }
    .toc-sidebar { display: none; }
    .infobox-sidebar {
        position: static;
        order: -1;
    }
}
@media (max-width: 768px) {
    .hero h1 { font-size: 2rem; }
    .hero-header { flex-direction: column; gap: 0.5rem; }
    .hero .version-badge { margin-left: 0; margin-top: 0.5rem; }
    .nav-logo { font-size: 1rem; }
    .version-badge { font-size: 0.625rem; padding: 0.125rem 0.375rem; }
    .nav-search-btn { display: none; }
    .suggest-btn { display: none; }
    .edit-controls { flex-direction: column; }
    .source-tooltip, .keyword-tooltip { max-width: 280px; }
}