/* kiwimu - namuwiki-inspired wiki theme */

:root {
    --bg: #ffffff;
    --bg-alt: #f6f6f6;
    --bg-hover: #eaeaea;
    --text: #1a1a1a;
    --text-muted: #6b6b6b;
    --link: #005ea8;
    --link-hover: #00457c;
    --border: #dcdcdc;
    --accent: #00a495; /* NamuWiki green */
    --accent-dark: #008c7e;
    --accent-light: #e0f5f3; /* Light green for backgrounds */
    --namu-green: #00a495;
    --namu-green-dark: #007a6e;
    --namu-heading-bg: #00a495;
    --accent-text: #006b62;
    --control-bg: #006b62;
    --focus-ring: #005fcc;
    --graph-bg: #fbfcfd;
    --graph-link: #9aa4ad;
    --warning-bg: #fff8e1;
    --warning-border: #b36b00;
    --shadow-sm: 0 1px 3px rgba(20, 35, 45, 0.12);
    --shadow-md: 0 8px 28px rgba(20, 35, 45, 0.16);
    --sidebar-width: 250px;
    --topbar-height: 52px;
    /* --radius variable removed as all corners are sharp */
}

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

[hidden] { display: none !important; }

html {
    scroll-behavior: smooth;
    scroll-padding-top: calc(var(--topbar-height) + 16px);
}

/* Targeted border-radius reset for kiwimu elements only */
.topbar, .sidebar, .content, .page-card, .toc-box,
.search-dropdown, .backlinks li a, .stat-card, .quick-link,
.file-drop, .add-form input, .add-form button,
.config-card, .badge, .page-type-badge, .page-body table,
.page-body blockquote, .page-body pre {
    border-radius: 0;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Malgun Gothic", "Apple SD Gothic Neo", sans-serif;
    color: var(--text);
    background: var(--bg);
    line-height: 1.65; /* Updated line-height */
    font-size: 15px;
    overflow-wrap: anywhere;
}

button, input, textarea, select { font: inherit; }
button { color: inherit; }

:focus-visible {
    /* Two-tone indicator remains visible on both white and colored controls. */
    outline: 2px solid #ffffff;
    outline-offset: 2px;
    box-shadow: 0 0 0 5px var(--focus-ring);
}

.visually-hidden {
    position: absolute !important;
    width: 1px !important;
    height: 1px !important;
    padding: 0 !important;
    margin: -1px !important;
    overflow: hidden !important;
    clip: rect(0, 0, 0, 0) !important;
    white-space: nowrap !important;
    border: 0 !important;
}

/* Management controls only exist on an authenticated live server. Static
   deployments and public readers should never be sent to a guaranteed 401. */
.live-only { display: none !important; }
html:has(meta[name="kiwi-live"]) .live-only { display: inline-flex !important; }
html:has(meta[name="kiwi-live"]) section.live-only { display: block !important; }

.skip-link {
    position: fixed;
    left: 12px;
    top: 8px;
    z-index: 10001;
    padding: 10px 14px;
    background: var(--bg);
    color: var(--text);
    border: 2px solid var(--focus-ring);
    transform: translateY(-160%);
    transition: transform .15s ease;
}
.skip-link:focus { transform: translateY(0); }

a {
    color: var(--link);
    text-decoration: none;
}

a:hover {
    color: var(--link-hover);
    text-decoration: underline;
}

/* Links embedded in prose must not rely on color alone. */
p a {
    text-decoration: underline;
    text-underline-offset: 2px;
}

/* Topbar - namuwiki style */
.topbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--topbar-height);
    background: var(--namu-green-dark);
    display: flex;
    align-items: center;
    padding: 0 16px;
    z-index: 100;
    gap: 12px;
    box-shadow: var(--shadow-sm);
}

.topbar-brand {
    font-weight: 700;
    font-size: 16px;
    color: #ffffff;
    white-space: nowrap;
    display: flex;
    align-items: center;
    gap: 8px;
}

.topbar-brand:hover {
    text-decoration: none;
    color: #e0f5f3;
}

.topbar-logo {
    width: 26px;
    height: 26px;
    object-fit: contain;
    filter: brightness(10);
}

.topbar-search {
    flex: 1;
    max-width: 360px;
    position: relative;
}

.topbar-search input {
    width: 100%;
    padding: 5px 12px;
    border: none;
    /* border-radius: 3px; -> Handled by global reset */
    font-size: 14px;
    background: rgba(255,255,255,0.9);
    transition: background 0.2s;
    min-height: 36px;
}

.topbar-search input:focus {
    background: #ffffff;
    /* box-shadow: none; -> Handled by global reset */
}

.search-dropdown {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg);
    border: 1px solid var(--border);
    /* border-radius: var(--radius); -> Handled by global reset */
    /* box-shadow: none; -> Handled by global reset */
    max-height: min(300px, calc(100dvh - var(--topbar-height) - 8px));
    overflow-y: auto;
    z-index: 200;
    box-shadow: var(--shadow-md);
}

.search-dropdown.active {
    display: block;
}

.search-dropdown a {
    display: block;
    padding: 8px 12px;
    color: var(--text);
    border-bottom: 1px solid var(--bg-alt);
    min-height: 48px;
}

.search-dropdown a:hover {
    background: var(--bg-alt);
    text-decoration: none;
}

.search-dropdown a.selected {
    background: var(--accent-light);
    color: var(--accent-text);
}

.search-preview {
    display: block;
    margin-top: 2px;
    color: var(--text-muted);
    font-size: 12px;
    font-weight: 400;
}

.search-dropdown .search-highlight {
    background: transparent;
    color: var(--namu-green);
    font-weight: 600;
    padding: 0;
}

.topbar-links {
    margin-left: auto;
    display: flex;
    gap: 4px;
}

.btn-graph {
    padding: 4px 10px;
    border: 1px solid rgba(255,255,255,0.3);
    /* border-radius: 3px; -> Handled by global reset */
    font-size: 13px;
    color: #ffffff;
    white-space: nowrap;
    transition: background 0.15s;
    min-height: 36px;
    display: inline-flex;
    align-items: center;
}

.btn-graph:hover {
    background: rgba(255,255,255,0.15);
    text-decoration: none;
    color: #ffffff;
}

/* Layout */
.layout {
    display: flex;
    margin-top: var(--topbar-height);
    min-height: calc(100vh - var(--topbar-height));
}

/* Sidebar - namuwiki style */
.sidebar {
    width: var(--sidebar-width);
    background: var(--bg-alt);
    border-right: 1px solid var(--border);
    padding: 0;
    position: fixed;
    top: var(--topbar-height);
    bottom: 0;
    overflow-y: auto;
}

.sidebar-header {
    font-weight: 700;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    padding: 0 14px 8px;
    border-bottom: 1px solid var(--border);
    margin-bottom: 0;
}

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

.page-list li a {
    display: block;
    padding: 5px 14px;
    color: var(--text);
    font-size: 13px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    border-bottom: 1px solid #efefef;
    min-height: 36px;
    display: flex;
    align-items: center;
}

.page-list li a:hover {
    background: var(--bg-hover);
    text-decoration: none;
}

.page-list li a.active {
    background: var(--accent-light);
    color: var(--accent-text);
    font-weight: 600;
    border-right: 3px solid var(--namu-green);
}

/* Content */
.content {
    flex: 1;
    margin-left: var(--sidebar-width);
    padding: 24px 40px;
    max-width: 960px;
    min-width: 0;
}

.page-body h2,
.page-body h3,
.page-body h4 { scroll-margin-top: calc(var(--topbar-height) + 16px); }

/* Wiki page - namuwiki style headings */
.page-header h1 {
    font-size: 26px;
    font-weight: 700;
    padding-bottom: 10px;
    border-bottom: 3px solid var(--namu-green);
    margin-bottom: 20px;
    color: var(--text);
}

.page-body {
    /* line-height: 1.8; -> Removed to inherit from body's 1.65 */
}

.page-body h2 {
    font-size: 20px;
    font-weight: 700;
    margin: 28px 0 10px;
    padding: 4px 10px;
    background: var(--control-bg);
    color: #ffffff;
    /* border-radius: 2px; -> Handled by global reset */
}

.page-body h3 {
    font-size: 17px;
    font-weight: 700;
    margin: 22px 0 8px;
    padding: 3px 8px;
    border-left: 4px solid var(--namu-green);
    background: none; /* Removed background */
    color: var(--text);
}

.page-body h4 {
    font-size: 15px;
    font-weight: 700;
    margin: 18px 0 6px;
    padding-bottom: 4px;
    border-bottom: 1px solid var(--border);
}

.page-body p {
    margin-bottom: 10px;
}

.page-body ul, .page-body ol {
    margin: 8px 0 12px 24px;
}

.page-body li {
    margin-bottom: 3px;
}

/* Namuwiki-style strikethrough (humor) */
.page-body del {
    color: var(--text-muted);
    text-decoration: line-through;
    font-size: 0.95em;
}

.page-body blockquote {
    border-left: 3px solid var(--namu-green);
    padding: 8px 14px;
    margin: 10px 0;
    background: #f0faf9;
    /* border-radius: 0 var(--radius) var(--radius) 0; -> Handled by global reset */
    font-size: 14px;
}

.page-body code {
    background: #f0f0f0;
    padding: 2px 5px;
    /* border-radius: 2px; -> Handled by global reset */
    font-size: 13px;
    font-family: "JetBrains Mono", "D2Coding", monospace;
}

.page-body pre {
    background: #2b2b2b;
    color: #e0e0e0;
    padding: 14px;
    /* border-radius: var(--radius); -> Handled by global reset */
    overflow-x: auto;
    margin: 10px 0;
}

.page-body pre code {
    background: none;
    padding: 0;
    color: inherit;
}

.page-body img {
    max-width: 100%;
    /* border-radius: var(--radius); -> Handled by global reset */
    margin: 10px 0;
}

.page-body table {
    width: 100%;
    border-collapse: collapse;
    margin: 10px 0;
    font-size: 14px;
}

.page-body th, .page-body td {
    padding: 6px 10px;
    border: 1px solid var(--border);
    text-align: left;
}

.page-body th {
    background: var(--accent-light);
    font-weight: 600;
    color: var(--accent-text);
}

/* Bold emphasis - namuwiki loves bold */
.page-body strong {
    color: var(--text);
    font-weight: 800;
}

/* TOC - namuwiki style with counters */
.toc-box {
    background: #f5f5f5;
    border: 1px solid var(--border);
    /* border-radius: var(--radius); -> Handled by global reset */
    padding: 10px 14px;
    margin-bottom: 20px;
}

.toc-box summary {
    font-weight: 700;
    cursor: pointer;
    font-size: 14px;
    color: var(--accent-text);
}

.toc-box .toc {
    counter-reset: h2; /* Reset counter for top-level headings */
}

.toc-box .toc ul { /* Use ul as the base, then li for items */
    list-style: none;
    margin: 6px 0 0 0;
    padding-left: 0;
}

.toc-box .toc ul ul { /* Nested lists */
    padding-left: 18px; /* Indent for sub-levels */
}

.toc-box .toc li {
    margin: 2px 0; /* Slightly more space */
    position: relative; /* For counter positioning */
}

.toc-box .toc li a {
    font-size: 13px;
    color: var(--link);
    display: block; /* Make link clickable over full line */
    padding-left: 20px; /* Space for counter */
}

.toc-box .toc li a:hover {
    color: var(--link-hover);
}

/* Counter for h2 equivalent */
.toc-box .toc > ul > li {
    counter-increment: h2;
    counter-reset: h3; /* Reset h3 counter for each new h2 */
}
.toc-box .toc > ul > li > a::before {
    content: counter(h2) ". ";
    position: absolute;
    left: 0;
    color: var(--text-muted);
    font-weight: 400;
    width: 20px; /* Fixed width for alignment */
    text-align: right;
}

/* Counter for h3 equivalent */
.toc-box .toc > ul > li > ul > li {
    counter-increment: h3;
    counter-reset: h4; /* Reset h4 counter for each new h3 */
}
.toc-box .toc > ul > li > ul > li > a::before {
    content: counter(h2) "." counter(h3) ". ";
    position: absolute;
    left: 0;
    color: var(--text-muted);
    font-weight: 400;
    width: 20px;
    text-align: right;
}

/* Counter for h4 equivalent */
.toc-box .toc > ul > li > ul > li > ul > li {
    counter-increment: h4;
}
.toc-box .toc > ul > li > ul > li > ul > li > a::before {
    content: counter(h2) "." counter(h3) "." counter(h4) ". ";
    position: absolute;
    left: 0;
    color: var(--text-muted);
    font-weight: 400;
    width: 20px;
    text-align: right;
}


/* Backlinks */
.backlinks {
    margin-top: 36px;
    padding-top: 14px;
    border-top: 2px solid var(--namu-green);
}

.backlinks h3 {
    font-size: 14px;
    color: var(--accent-text);
    font-weight: 700;
    margin-bottom: 8px;
}

.backlinks ul {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.backlinks li a {
    display: inline-block;
    padding: 3px 10px;
    background: var(--accent-light);
    border: 1px solid var(--namu-green);
    /* border-radius: 3px; -> Handled by global reset */
    font-size: 13px;
    color: var(--accent-text);
}

.backlinks li a:hover {
    background: var(--control-bg);
    color: #ffffff;
    text-decoration: none;
}

/* Index page */
.hero {
    text-align: center;
    padding: 40px 0 28px;
}

.hero-logo {
    width: 100px;
    height: 100px;
    object-fit: contain;
    margin-bottom: 12px;
}

.hero h1 {
    font-size: 32px;
    border: none;
    color: var(--accent-text);
}

.hero-sub {
    color: var(--text-muted);
    font-size: 15px;
    margin-top: 6px;
}

.index-grid {
    max-width: 700px;
    margin: 0 auto;
}

.index-section h2 {
    font-size: 17px;
    margin-bottom: 12px;
    padding: 4px 10px;
    background: var(--control-bg);
    color: #ffffff;
    /* border-radius: 2px; -> Handled by global reset */
}

.page-cards {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(170px, 1fr));
    gap: 8px;
    margin-bottom: 28px;
}

.empty-state {
    grid-column: 1 / -1;
    padding: 32px;
    text-align: center;
    color: var(--text-muted);
    font-size: 14px;
    border: 2px dashed var(--border);
    margin: 8px 0;
}

.page-card {
    display: block;
    padding: 10px 14px;
    background: var(--bg);
    border: 1px solid var(--border);
    /* border-radius: var(--radius); -> Handled by global reset */
    color: var(--text);
    transition: all 0.15s;
}

.page-card:hover {
    background: var(--accent-light);
    border-color: var(--namu-green);
    text-decoration: none;
    transform: translateY(-1px);
    /* box-shadow: none; -> Handled by global reset */
}

.card-title {
    font-weight: 600;
    font-size: 13px;
}

.quick-links {
    display: flex;
    gap: 10px;
    margin-bottom: 28px;
}

.quick-link {
    padding: 10px 18px;
    background: var(--accent-light);
    border: 1px solid var(--namu-green);
    /* border-radius: var(--radius); -> Handled by global reset */
    font-size: 14px;
    color: var(--accent-text);
    font-weight: 600;
}

.quick-link:hover {
    background: var(--control-bg);
    color: #ffffff;
    text-decoration: none;
}

/* Graph page */
.graph-page {
    text-align: center;
}

.graph-page h1 {
    border: none;
    margin-bottom: 8px;
    color: var(--accent-text);
}

.graph-desc {
    color: var(--text-muted);
    font-size: 14px;
    margin-bottom: 14px;
}

#graph-container {
    width: 100%;
    height: calc(100vh - 200px);
    border: 1px solid var(--border);
    /* border-radius: var(--radius); -> Handled by global reset */
    background: var(--graph-bg);
    position: relative;
    overflow: hidden;
}

#graph-container svg {
    width: 100%;
    height: 100%;
    -webkit-tap-highlight-color: transparent;
}

.graph-desc {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: 6px 16px;
}

.graph-toolbar {
    display: flex;
    justify-content: flex-end;
    gap: 6px;
    margin-bottom: 8px;
}
.graph-toolbar button {
    min-width: 40px;
    min-height: 40px;
    padding: 6px 12px;
    border: 1px solid var(--border);
    background: var(--bg);
    color: var(--text);
    cursor: pointer;
    font-weight: 600;
}
.graph-toolbar button:hover { background: var(--bg-hover); }
.graph-state {
    position: absolute;
    inset: 0;
    display: grid;
    place-items: center;
    padding: 32px;
    color: var(--text-muted);
}
#graph-container svg + .graph-state:empty,
#graph-container .graph-state:empty { display: none; }
#graph-container.has-error { border-color: #c62828; }

/* Permalink */
.headerlink {
    color: rgba(255,255,255,0.6);
    font-size: 0.7em;
    margin-left: 6px;
    opacity: 0;
    transition: opacity 0.2s;
}

h2:hover .headerlink,
h3:hover .headerlink,
h4:hover .headerlink {
    opacity: 1;
}

.headerlink:focus-visible { opacity: 1; }

h3 .headerlink {
    color: var(--text-muted);
}

h4 .headerlink {
    color: var(--text-muted);
}

/* Page type badge - namuwiki style */
.page-type-badge {
    display: inline-block;
    font-size: 11px;
    font-weight: 700;
    padding: 2px 8px;
    /* border-radius: 2px; -> Handled by global reset */
    margin-bottom: 6px;
    letter-spacing: 0.03em;
}

.page-type-badge.source {
    background: #e3f2fd;
    color: #1565c0;
}

.page-type-badge.concept {
    background: var(--accent-light);
    color: var(--namu-green-dark);
}

/* Sidebar tabs - namuwiki style */
.sidebar-tabs {
    display: flex;
    border-bottom: 1px solid var(--border);
    padding: 0;
    position: sticky;
    top: 0;
    background: var(--bg-alt);
    z-index: 10;
}

.sidebar-tab {
    flex: 1;
    padding: 8px 6px;
    border: none;
    background: none;
    font-size: 12px;
    font-weight: 700;
    color: var(--text-muted);
    cursor: pointer;
    border-bottom: 2px solid transparent;
    transition: all 0.15s;
    min-height: 44px;
}

.sidebar-tab:hover {
    color: var(--text);
    background: var(--bg-hover);
}

.sidebar-tab.active {
    color: var(--accent-text);
    border-bottom-color: var(--accent-text);
}

.kiwimu-badge a {
    color: var(--accent-text);
    text-decoration: underline;
    text-underline-offset: 2px;
}

.sidebar-panel {
    display: none;
}

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

.sidebar-panel[hidden] { display: none; }
.sidebar-empty { padding: 24px 14px; color: var(--text-muted); font-size: 13px; text-align: center; }

/* Backlink groups */
.backlink-group {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 5px;
    margin-bottom: 6px;
}

.backlink-label {
    font-size: 12px;
    font-weight: 700;
    color: var(--text-muted);
    margin-right: 3px;
}

/* External refs */
.external-refs {
    margin-top: 28px;
    padding: 14px;
    background: #f0f7ff;
    border: 1px solid #bdd7ee;
    /* border-radius: var(--radius); -> Handled by global reset */
}

.external-refs h3 {
    font-size: 14px;
    color: #1565c0;
    font-weight: 700;
    margin-bottom: 6px;
}

.external-refs ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

.external-refs li {
    margin-bottom: 3px;
}

.external-refs a {
    font-size: 13px;
    color: #1565c0; /* Specific blue for external refs */
}

/* Backlink type indicators */
.backlink-item.source {
    border-left: 3px solid #2196f3;
}

.backlink-item.concept {
    border-left: 3px solid var(--namu-green);
}

/* Page card types */
.page-card.source {
    border-left: 3px solid #2196f3;
}

.page-card.concept {
    border-left: 3px solid var(--namu-green);
}

.card-badge {
    font-size: 12px;
    margin-right: 3px;
}

/* Add tabs */
.add-tabs {
    display: flex;
    gap: 4px;
    margin-bottom: 10px;
}

.add-tab {
    padding: 5px 14px;
    border: 1px solid var(--border);
    background: var(--bg-alt);
    /* border-radius: var(--radius); -> Handled by global reset */
    font-size: 13px;
    cursor: pointer;
    transition: all 0.15s;
}

.add-tab.active {
    background: var(--control-bg);
    color: white;
    border-color: var(--namu-green);
}

.add-panel {
    display: none;
}

.add-panel.active {
    display: flex;
}

/* File drop zone */
.file-drop {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 18px;
    border: 2px dashed var(--border);
    /* border-radius: var(--radius); -> Handled by global reset */
    cursor: pointer;
    transition: all 0.15s;
    text-align: center;
}

.file-drop:hover, .file-drop.dragover {
    border-color: var(--namu-green);
    background: var(--accent-light);
}

.file-drop-text {
    font-size: 14px;
    font-weight: 600;
    color: var(--text);
}

.file-drop-hint {
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 4px;
}

/* Add document form */
.add-form {
    display: flex;
    gap: 8px;
    margin-bottom: 10px;
}

.add-form input {
    flex: 1;
    padding: 8px 12px;
    border: 1px solid var(--border);
    /* border-radius: var(--radius); -> Handled by global reset */
    font-size: 14px;
    transition: border-color 0.2s;
}

.add-form input:focus {
    border-color: var(--namu-green);
    /* box-shadow: none; -> Handled by global reset */
}

.add-form button {
    padding: 8px 18px;
    background: var(--control-bg);
    color: white;
    border: none;
    /* border-radius: var(--radius); -> Handled by global reset */
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    white-space: nowrap;
    transition: background 0.15s;
}

.add-form button:hover {
    background: var(--accent-dark);
}

.add-form button:disabled {
    background: var(--text-muted);
    cursor: not-allowed;
}

.add-status {
    padding: 8px 12px;
    /* border-radius: var(--radius); -> Handled by global reset */
    font-size: 14px;
}

.add-status.processing {
    background: #fff3e0;
    color: #e65100;
    border: 1px solid #ffcc80;
}

.add-status.success {
    background: var(--accent-light);
    color: var(--accent-text);
    border: 1px solid var(--namu-green);
}

.add-status.error {
    background: #fce4ec;
    color: #c62828;
    border: 1px solid #ef9a9a;
}

/* Usage stats */
.stats-grid {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-top: 10px;
}

.stat-card {
    flex: 1;
    min-width: 90px;
    padding: 10px 14px;
    background: var(--bg-alt);
    border: 1px solid var(--border);
    /* border-radius: var(--radius); -> Handled by global reset */
    text-align: center;
}

.stat-card.accent {
    background: var(--accent-light);
    border-color: var(--namu-green);
}

.stat-value {
    font-size: 18px;
    font-weight: 700;
    color: var(--text);
}

.stat-card.accent .stat-value {
    color: var(--accent-text);
}

.stat-label {
    font-size: 11px;
    color: var(--text-muted);
    margin-top: 3px;
}

/* Graph legend */
.legend-dot {
    display: inline-block;
    width: 12px;
    height: 12px;
    border-radius: 50%; /* Keep for circular dot */
    vertical-align: middle;
    margin-right: 4px;
}

.legend-dot.source {
    background: #2196f3;
}

.legend-dot.concept {
    background: var(--namu-green);
}

/* Mobile nav in sidebar — hidden on desktop, visible on mobile */
.sidebar-mobile-nav {
    display: none;
}

/* Hamburger menu button */
.topbar-menu-btn {
    display: none;
    background: none;
    border: none;
    color: white;
    font-size: 22px;
    cursor: pointer;
    padding: 0 8px;
    min-width: 44px;
    min-height: 44px;
    align-items: center;
    justify-content: center;
}

/* Sidebar overlay */
.sidebar-overlay {
    display: none;
}

/* Responsive */
@media (max-width: 768px) {
    .topbar-menu-btn { display: flex; align-items: center; }

    /* Hide nav links on mobile — accessible via sidebar */
    .topbar-links {
        display: none;
    }

    /* Show mobile nav in sidebar */
    .sidebar-mobile-nav {
        display: flex;
        flex-direction: column;
        border-top: 1px solid var(--border);
        padding: 8px 0;
    }
    .sidebar-mobile-nav a {
        display: block;
        padding: 8px 14px;
        font-size: 13px;
        color: var(--text);
        border-bottom: 1px solid #efefef;
        min-height: 44px;
        align-items: center;
    }
    .sidebar-mobile-nav a:hover {
        background: var(--bg-hover);
        text-decoration: none;
    }

    .topbar-search {
        flex: 1;
        max-width: none;
    }

    .sidebar {
        position: fixed;
        left: -260px;
        top: var(--topbar-height);
        bottom: 0;
        width: 260px;
        z-index: 99;
        visibility: hidden;
        transition: left 0.25s ease, visibility 0s linear 0.25s;
        background: var(--bg);
        display: block !important;
    }
    .sidebar.open {
        left: 0;
        visibility: visible;
        transition-delay: 0s;
    }

    .sidebar-overlay {
        display: none;
        position: fixed;
        inset: 0;
        top: var(--topbar-height);
        background: rgba(0,0,0,0.4);
        z-index: 98;
    }
    .sidebar-overlay.active { display: block; }

    .content {
        margin-left: 0;
        padding: 16px 14px;
        max-width: 100%;
    }

    /* Headings & hero scale down */
    .page-header h1 {
        font-size: 20px;
    }
    .hero h1 {
        font-size: 24px;
    }
    .hero {
        padding: 24px 0 16px;
    }
    .hero-logo {
        width: 72px;
        height: 72px;
    }

    /* Tables scroll horizontally */
    .page-body table {
        display: block;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    /* Code blocks */
    .page-body pre {
        font-size: 12px;
        padding: 10px;
    }

    /* Quick links wrap */
    .quick-links {
        flex-wrap: wrap;
    }
    .quick-link {
        flex: 1 1 calc(50% - 5px);
        text-align: center;
        font-size: 13px;
        padding: 11px 12px;
        min-height: 44px;
    }

    /* Page cards grid — single column on very small screens */
    .page-cards {
        grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
        gap: 6px;
    }

    /* Stats grid */
    .stats-grid {
        gap: 6px;
    }
    .stat-card {
        min-width: 70px;
        padding: 8px 10px;
    }
    .stat-value {
        font-size: 16px;
    }

    /* QA popover */
    .qa-popover {
        width: calc(100vw - 20px);
        max-width: 300px;
        left: 10px;
        right: 10px;
        bottom: 10px;
    }

    /* Edit modal */
    .edit-modal-inner {
        width: 95%;
        max-height: calc(100dvh - 16px);
    }
    .edit-textarea {
        min-height: 0;
        height: min(250px, 45dvh);
        font-size: 12px;
    }

    /* Backlinks */
    .backlinks ul {
        gap: 4px;
    }
    .backlinks li a {
        font-size: 12px;
        padding: 8px 10px;
        min-height: 40px;
    }

    /* Add form */
    .add-form {
        flex-direction: column;
    }
    .add-form button {
        width: 100%;
    }

    /* File drop */
    .file-drop {
        padding: 14px;
    }

    /* Index section headings */
    .index-section h2 {
        font-size: 15px;
    }

    .page-list li a { min-height: 44px; }
    #graph-container { height: calc(100dvh - 230px); min-height: 420px; }
    .graph-toolbar { justify-content: center; }
    .kiwimu-badge { margin-left: 0 !important; }
}

/* Extra small screens */
@media (max-width: 380px) {
    .topbar-brand {
        font-size: 14px;
    }
    .topbar-logo {
        width: 22px;
        height: 22px;
    }
    .page-header h1 {
        font-size: 18px;
    }
    .page-cards {
        grid-template-columns: 1fr;
    }
    .quick-links {
        flex-direction: column;
    }
    .quick-link {
        flex: 1 1 100%;
    }
}

@media (max-width: 480px) {
    .topbar { padding-inline: 6px; gap: 6px; }
    .topbar-brand { font-size: 0; gap: 0; }
    .topbar-logo { width: 28px; height: 28px; }
    .topbar-search input { font-size: 16px; }
}

/* Dynamic Q&A Popover */
.qa-popover {
    position: fixed;
    right: 16px;
    bottom: 16px;
    z-index: 1000;
    width: 300px;
    background: var(--bg);
    border: 1px solid var(--namu-green);
    padding: 0;
    font-size: 13px;
    max-height: calc(100dvh - 32px);
    overflow-y: auto;
}

@media (max-width: 768px) {
    .qa-popover {
        right: 10px;
        bottom: 10px;
        left: 10px;
        width: auto;
        max-width: none;
    }
}

.qa-popover-header {
    background: var(--control-bg);
    color: white;
    padding: 8px 12px;
    font-weight: 600;
    font-size: 12px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.qa-popover-selected {
    padding: 6px 12px;
    font-size: 11px;
    color: var(--text-muted);
    background: var(--bg-alt);
    border-bottom: 1px solid var(--border);
    max-height: 60px;
    overflow: hidden;
    font-style: italic;
    line-height: 1.4;
}

mark.qa-highlight {
    background: rgba(0, 164, 149, 0.2);
    border-bottom: 2px solid var(--namu-green);
    padding: 0 1px;
}

a.dynamic-link {
    color: var(--namu-green);
    border-bottom: 1px dashed var(--namu-green);
    text-decoration: none;
}
a.dynamic-link:hover {
    background: rgba(0, 164, 149, 0.1);
}

/* Red links — wiki convention for non-existent pages */
a.redlink {
    color: #d32f2f;
    text-decoration: none;
    border-bottom: 1px dotted #d32f2f;
    cursor: help;
}
a.redlink:hover {
    background: rgba(211, 47, 47, 0.08);
}

.qa-popover-close {
    background: none;
    border: none;
    color: white;
    font-size: 18px;
    cursor: pointer;
    padding: 4px;
    line-height: 1;
    min-width: 44px;
    min-height: 44px;
}

.qa-popover-body {
    display: flex;
    flex-direction: column;
    padding: 8px;
    gap: 6px;
}

.qa-body-row {
    display: flex;
    gap: 6px;
}

.qa-popover-input {
    flex: 1;
    padding: 6px 10px;
    border: 1px solid var(--border);
    font-size: 13px;
    background: var(--bg);
    color: var(--text);
}

.qa-popover-input:focus {
    border-color: var(--namu-green);
}

.qa-popover-btn {
    padding: 6px 14px;
    background: var(--control-bg);
    color: white;
    border: none;
    cursor: pointer;
    font-size: 12px;
    font-weight: 600;
    white-space: nowrap;
}

.qa-popover-btn:hover {
    background: var(--namu-green-dark);
}

.qa-popover-loading {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px;
    color: var(--text-muted);
    font-size: 12px;
}

.qa-spinner {
    display: inline-block;
    width: 14px;
    height: 14px;
    border: 2px solid var(--border);
    border-top-color: var(--namu-green);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

.qa-popover-result {
    padding: 10px 12px;
}

.qa-result-link {
    display: block;
    color: var(--accent-text);
    text-decoration: none;
    font-weight: 600;
    margin-bottom: 4px;
}

.qa-result-link:hover {
    text-decoration: underline;
}

.qa-result-hint {
    font-size: 11px;
    color: var(--text-muted);
}

.qa-promote-btn {
    display: block;
    width: 100%;
    margin-top: 8px;
    padding: 6px 12px;
    border: 1px solid var(--namu-green);
    border-radius: 6px;
    background: transparent;
    color: var(--accent-text);
    font-size: 12px;
    cursor: pointer;
    transition: background 0.15s, color 0.15s;
}

.qa-promote-btn:hover:not(:disabled) {
    background: var(--control-bg);
    color: #fff;
}

.qa-promote-btn:disabled {
    opacity: 0.6;
    cursor: wait;
}

.qa-promote-success {
    margin-top: 6px;
    padding: 6px 0;
    font-size: 12px;
    color: var(--accent-text);
    display: flex;
    gap: 8px;
    align-items: center;
    flex-wrap: wrap;
}

.qa-promote-success a {
    color: var(--accent-text);
    text-decoration: underline;
    font-weight: 500;
}

.qa-popover-error {
    padding: 10px 12px;
    color: #e53935;
    font-size: 12px;
}

.qa-popover-related {
    border-top: 1px solid var(--border);
    max-height: 160px;
    overflow-y: auto;
}

.qa-related-label {
    padding: 6px 12px;
    font-size: 11px;
    font-weight: 600;
    color: var(--text-muted);
}

.qa-related-list {
    padding: 0 8px 8px;
}

.qa-related-item {
    display: block;
    padding: 6px 8px;
    text-decoration: none;
    color: var(--text);
    font-size: 12px;
    border-bottom: 1px solid var(--border);
    transition: background 0.15s;
}

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

.qa-related-item:hover {
    background: var(--bg-hover);
}

.qa-related-icon {
    margin-right: 4px;
}

.qa-related-title {
    font-weight: 600;
    color: var(--accent-text);
}

.qa-related-preview {
    display: block;
    font-size: 11px;
    color: var(--text-muted);
    margin-top: 2px;
    line-height: 1.3;
}

/* Global toast — used for promote success and demo magic moment */
.kiwi-toast {
    position: fixed;
    top: 80px;
    left: 50%;
    transform: translateX(-50%) translateY(-200%);
    background: var(--control-bg, #006b62);
    color: #fff;
    padding: 14px 24px;
    border-radius: 12px;
    font-size: 15px;
    font-weight: 600;
    box-shadow: 0 12px 36px rgba(0, 0, 0, 0.18);
    z-index: 10000;
    display: flex;
    align-items: center;
    gap: 10px;
    transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1), opacity 0.3s ease;
    opacity: 0;
    max-width: calc(100vw - 32px);
}

.kiwi-toast.show {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}

.kiwi-toast.error {
    background: #e53935;
}

.kiwi-toast .kiwi-toast-icon {
    display: inline-block;
    font-size: 18px;
    animation: kiwi-toast-pop 0.5s cubic-bezier(0.34, 1.56, 0.64, 1) 0.05s both;
}

.kiwi-toast .kiwi-toast-text {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 60vw;
}

.kiwi-toast .kiwi-toast-link {
    color: #fff;
    text-decoration: underline;
    font-weight: 600;
    margin-left: 4px;
    opacity: 0.9;
    max-width: 200px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.kiwi-toast .kiwi-toast-link:hover {
    opacity: 1;
}

@keyframes kiwi-toast-pop {
    0%   { transform: scale(0.4) rotate(-30deg); opacity: 0; }
    60%  { transform: scale(1.25) rotate(0); opacity: 1; }
    100% { transform: scale(1) rotate(0); opacity: 1; }
}

/* New sidebar entry slide-in — for demo "wiki grows live" moment */
.sidebar-new-entry {
    animation: kiwi-sidebar-slide 0.5s cubic-bezier(0.34, 1.56, 0.64, 1) both;
    background: linear-gradient(90deg, rgba(46, 125, 50, 0.18), transparent);
    border-radius: 4px;
}

.sidebar-new-entry > a {
    font-weight: 600;
}

@keyframes kiwi-sidebar-slide {
    from { transform: translateX(-12px); opacity: 0; }
    to   { transform: translateX(0); opacity: 1; }
}

/* Dynamic page badge */
.page-type-badge.dynamic {
    background: #7c4dff;
    color: white;
}

/* Edit button & modal */
.edit-btn {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 16px;
    padding: 4px 8px;
    opacity: 0.5;
    transition: opacity 0.2s;
    display: inline-flex;
    min-width: 44px;
    min-height: 44px;
    align-items: center;
    justify-content: center;
}
.edit-btn:hover { opacity: 1; }

.edit-modal {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1001;
    padding: 8px;
}
.edit-modal[hidden] { display: none; }
body.modal-open { overflow: hidden; }
.edit-modal-inner {
    background: var(--bg);
    width: 90%;
    max-width: 800px;
    max-height: calc(100dvh - 16px);
    min-height: 0;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    border: 1px solid var(--border);
}
.edit-modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 16px;
    background: var(--control-bg);
    color: white;
    font-weight: 600;
}
.edit-modal-header h2 { margin: 0; font-size: 16px; }
.edit-modal-close {
    background: none;
    border: none;
    color: white;
    font-size: 20px;
    cursor: pointer;
    min-width: 44px;
    min-height: 44px;
}
.edit-textarea {
    flex: 1;
    padding: 16px;
    border: none;
    font-family: 'JetBrains Mono', 'D2Coding', monospace;
    font-size: 13px;
    resize: none;
    min-height: 0;
    height: min(400px, 55dvh);
    overflow: auto;
    background: var(--bg);
    color: var(--text);
}
.edit-modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 8px;
    padding: 12px 16px;
    border-top: 1px solid var(--border);
}
.edit-status { min-height: 1.5em; margin: 8px 16px 0; color: var(--text-muted); font-size: 13px; }
.edit-status[data-kind="error"] { color: #c62828; }
.edit-status[data-kind="success"] { color: var(--accent-text); }
.edit-cancel {
    padding: 6px 16px;
    background: var(--bg-alt);
    border: 1px solid var(--border);
    cursor: pointer;
    color: var(--text);
    min-height: 40px;
}
.edit-save {
    padding: 6px 16px;
    background: var(--control-bg);
    color: white;
    border: none;
    cursor: pointer;
    font-weight: 600;
    min-height: 40px;
}
.edit-save:disabled { opacity: .65; cursor: wait; }

/* Dark mode */
@media (prefers-color-scheme: dark) {
    :root {
        --bg: #1a1a2e;
        --bg-alt: #16213e;
        --bg-hover: #0f3460;
        --text: #e0e0e0;
        --text-muted: #8e8e8e;
        --text-dark: #ffffff;
        --border: #2a2a4a;
        --accent-light: #1a3a3a;
        --namu-green: #00b4a6;
        --namu-green-dark: #008c7e;
        --accent-text: #69ddd0;
        --control-bg: #005a52;
        --link: #8ac7ff;
        --link-hover: #b8dcff;
    }

    .topbar { background: #004d40; }
    .page-body h2 { background: #006050; }
    .page-card { background: var(--bg-alt); }
    .toc-box { background: var(--bg-alt); }
    .sidebar { background: var(--bg); border-right-color: var(--border); }
    img { opacity: 0.9; }

    /* Code blocks */
    .page-body pre { background: #1e1e3e; border-color: var(--border); }
    .page-body code { background: #2a2a4a; color: #e0e0e0; }

    /* Blockquotes */
    .page-body blockquote {
        background: var(--bg-alt);
        border-left-color: var(--namu-green);
        color: var(--text);
    }

    /* Tables */
    .page-body table th { background: #1a3a3a; color: var(--text); }
    .page-body table td { border-color: var(--border); }
    .page-body table tr:nth-child(even) { background: var(--bg-alt); }

    /* External refs */
    .external-refs { background: var(--bg-alt); border-color: var(--border); }
    .external-refs a { color: var(--link); }

    /* Backlinks */
    .backlinks { border-top-color: var(--border); }
    .backlinks li a { background: var(--bg-alt); color: var(--text); border-color: var(--border); }

    /* Search */
    .search-dropdown { background: var(--bg); border-color: var(--border); }
    .search-dropdown a { color: var(--text); border-bottom-color: var(--border); }
    .search-dropdown a:hover, .search-dropdown a.selected { background: var(--bg-hover); }
    .search-dropdown .search-highlight { color: var(--namu-green); }

    /* Admin & forms */
    input, textarea, select { background: var(--bg-alt); color: var(--text); border-color: var(--border); }

    /* Badges */
    .page-type-badge { background: var(--bg-alt); }

    /* Q&A Popover */
    .qa-popover { background: var(--bg); border-color: var(--namu-green); }
    .qa-popover-input { background: var(--bg-alt); color: var(--text); border-color: var(--border); }
    .qa-related-item { color: var(--text); }
    .qa-related-item:hover { background: var(--bg-hover); }
    .qa-popover-related { border-top-color: var(--border); }

    /* Empty state */
    .empty-state { border-color: var(--border); color: var(--text-muted); }

    /* Edit modal */
    .edit-modal-inner { background: var(--bg); border-color: var(--border); }
    .edit-modal-header { background: #004d40; }
    .edit-textarea { background: var(--bg-alt); color: var(--text); }
    .edit-cancel { background: var(--bg-alt); color: var(--text); border-color: var(--border); }
    .edit-save { background: var(--control-bg); }

    /* Footer badge */
    .kiwimu-badge { border-top-color: var(--border); }
    .kiwimu-badge a { color: var(--accent-text); }

    /* Catalog page dark mode */
    .catalog-category { border-color: var(--border); }
    .catalog-category-header { background: var(--bg-alt); }
    .catalog-item:hover { background: var(--bg-hover); }
    .catalog-badge.source { background: #1a3a2a; color: #6ecfa0; }
    .catalog-badge.concept { background: #1a2a3a; color: #6eb0cf; }
    .catalog-link-count { color: var(--text-muted); }
    .catalog-filter input { background: var(--bg-alt); color: var(--text); border-color: var(--border); }

    /* Citations dark mode */
    .citations-section { border-color: var(--border); background: var(--bg-alt); }
}

/* ─── Catalog Page ─── */

.catalog-page { max-width: 960px; }
.catalog-page h1 { font-size: 1.5rem; font-weight: 700; margin-bottom: 4px; }
.catalog-desc { color: var(--text-muted); font-size: 0.9rem; margin-bottom: 20px; }

.catalog-filter { margin-bottom: 20px; }
.catalog-filter input {
    width: 100%;
    padding: 10px 14px;
    font-size: 0.95rem;
    border: 1px solid var(--border);
    background: var(--bg-alt);
    color: var(--text);
    transition: border-color 0.2s;
}
.catalog-filter input:focus { border-color: var(--namu-green); }

.catalog-category {
    border: 1px solid var(--border);
    margin-bottom: 12px;
}
.catalog-category-header {
    padding: 10px 14px;
    cursor: pointer;
    background: var(--bg-alt);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 600;
    user-select: none;
}
.catalog-category-header:hover { background: var(--bg-hover); }
.catalog-category-name { font-size: 1rem; }
.catalog-category-count { font-size: 0.8rem; color: var(--text-muted); }
.catalog-category-desc { padding: 6px 14px 0; color: var(--text-muted); font-size: 0.85rem; }

.catalog-list { list-style: none; padding: 0; margin: 0; }
.catalog-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 7px 14px;
    border-top: 1px solid var(--border);
    font-size: 0.9rem;
}
.catalog-item:hover { background: var(--bg-hover); }
.catalog-item a { color: var(--link); text-decoration: none; flex: 1; }
.catalog-item a:hover { text-decoration: underline; }

.catalog-badge {
    display: inline-block;
    padding: 1px 6px;
    font-size: 0.72rem;
    font-weight: 600;
    white-space: nowrap;
}
.catalog-badge.source { background: #e0f5f3; color: #007a6e; }
.catalog-badge.concept { background: #e0eef5; color: #0a5e8a; }

.catalog-link-count {
    font-size: 0.78rem;
    color: var(--text-muted);
    white-space: nowrap;
}

.catalog-empty {
    padding: 40px;
    text-align: center;
    color: var(--text-muted);
}

/* ── Citations ── */
.citation-ref { font-size: 0.75em; vertical-align: super; line-height: 1; }
.citation-ref a { color: var(--accent-text, #006b62); text-decoration: none; font-weight: 600; }
.citation-ref a:hover { text-decoration: underline; }

.citations-section {
    margin-top: 32px;
    padding: 16px 20px;
    border: 1px solid var(--border, #e0e0e0);
    border-radius: 8px;
    background: var(--bg-secondary, #f8f9fa);
    font-size: 0.875rem;
}
.citations-section h3 {
    margin: 0 0 12px 0;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-muted, #666);
}
.citation-list {
    margin: 0;
    padding: 0;
    list-style: none;
}
.citation-item {
    padding: 6px 0;
    border-bottom: 1px solid var(--border, #eee);
    line-height: 1.5;
}
.citation-item:last-child { border-bottom: none; }
.citation-num {
    font-weight: 600;
    color: var(--accent-text, #006b62);
    margin-right: 4px;
}
.citation-excerpt {
    display: block;
    font-size: 0.8rem;
    color: var(--text-muted, #888);
    font-style: italic;
    margin-top: 2px;
}
/* === Track-based grouping (sidebar + index) === */
.sidebar-group {
  margin-bottom: 8px;
}
.sidebar-group > summary {
  cursor: pointer;
  font-weight: 600;
  font-size: 13px;
  padding: 4px 0;
  user-select: none;
  list-style: none;
}
.sidebar-group > summary::before {
  content: "▸";
  display: inline-block;
  width: 14px;
  transition: transform 0.15s;
  font-size: 10px;
}
.sidebar-group[open] > summary::before {
  transform: rotate(90deg);
}
.sidebar-group > summary::-webkit-details-marker {
  display: none;
}
.sidebar-count {
  color: var(--text-muted, #57606a);
  font-weight: 400;
  font-size: 11px;
  margin-left: 4px;
}
.sidebar-group .page-list {
  padding-left: 14px;
}
.page-group {
  margin-bottom: 18px;
}
.page-group-title {
  font-size: 14px;
  margin: 0 0 8px;
  color: var(--text-secondary, #57606a);
  font-weight: 600;
}
.page-group-count {
  font-weight: 400;
  font-size: 11px;
  color: var(--text-muted, #8b949e);
  margin-left: 4px;
}

/* Release polish: consistent targets, responsive tables and motion safety. */
.page-card,
.quick-link,
.catalog-item,
.toc-box .toc li a { min-height: 40px; }
.catalog-item { padding-block: 10px; }
.catalog-filter-status { margin-top: 6px; color: var(--text-muted); font-size: 12px; }
.admin-table-wrap:focus-visible,
.provenance-table-wrap:focus-visible { outline-offset: 2px; }
.kiwimu-badge {
    margin-left: var(--sidebar-width);
    margin-top: 32px;
    padding: 16px;
    border-top: 1px solid var(--border);
    color: var(--text-muted);
    font-size: 12px;
    text-align: center;
}
.toc-level-3 { margin-left: 16px; }
.toc-level-4 { margin-left: 32px; }

@media (hover: hover) {
    .page-card:hover { box-shadow: var(--shadow-sm); }
}

@media (prefers-color-scheme: dark) {
    :root {
        --focus-ring: #ffd166;
        --graph-bg: #121827;
        --graph-link: #687386;
        --warning-bg: #342b12;
        --warning-border: #c78b2b;
        --shadow-sm: 0 1px 3px rgba(0, 0, 0, .35);
        --shadow-md: 0 10px 30px rgba(0, 0, 0, .45);
    }
    .topbar-search input { background: rgba(255, 255, 255, .94); color: #171717; }
    .provenance-page-link { background: var(--bg-alt); color: #63d6c9; }
    .provenance-warning { background: var(--warning-bg); border-color: var(--warning-border); }
}

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after {
        animation-duration: .01ms !important;
        animation-iteration-count: 1 !important;
        scroll-behavior: auto !important;
        transition-duration: .01ms !important;
    }
    .quiz-card-inner.flipped { transform: none !important; }
    .quiz-card-front[aria-hidden="true"] { display: none; }
    .quiz-card-back[aria-hidden="false"] { position: static; transform: none; }
}

@media (forced-colors: active) {
    :focus-visible { outline: 3px solid Highlight; box-shadow: none; }
    .search-dropdown a.selected { outline: 2px solid Highlight; outline-offset: -2px; }
    .legend-dot, .provenance-bar { border: 1px solid CanvasText; }
}

.mermaid-image {
    display: block;
    max-width: 100%;
    height: auto;
    margin-inline: auto;
}

.graph-node {
    cursor: pointer;
    touch-action: none;
    user-select: none;
    -webkit-tap-highlight-color: transparent;
}

.kiwi-math-display {
    display: block;
    max-width: 100%;
    margin-block: 1rem;
    padding-block: .25rem;
    overflow-x: auto;
    overflow-y: hidden;
    text-align: center;
}

.kiwi-math,
.kiwi-math math {
    font-family: "STIX Two Math", "Cambria Math", math, serif;
    line-height: normal;
}

/* Mermaid needs a real layout viewport while rendering. Keep its opaque-origin
   sandbox fully off-screen without `display:none`, which would collapse text
   measurements and produce malformed diagrams. */
.mermaid-render-frame {
    position: fixed;
    top: 0;
    left: -10000px;
    width: 1024px;
    height: 768px;
    border: 0;
    opacity: 0;
    pointer-events: none;
}