/* Tvijo wiki — self-contained design system.
   Palette follows the product: near-black surfaces, one orange accent, Inter.
   Dark is the default; light theme is a first-class variant (body[data-theme]). */

:root {
  --bg: #0a0a0f;
  --bg-soft: #0d0d13;
  --panel: #12121a;
  --panel-2: #1a1a24;
  --text: #e9e9f0;
  --text-soft: #b6b6c6;
  --muted: #8a8a9c;
  --border: #23232f;
  --border-strong: #2f2f3d;
  --accent: #f97316;
  --accent-text: #ffa95e;
  --accent-soft: rgba(249, 115, 22, 0.12);
  --ok: #45c08a;
  --warn: #f0b429;
  --code-bg: #0c0c12;
  --shadow: 0 18px 40px rgba(0, 0, 0, 0.45);
  --radius: 14px;
  --radius-sm: 9px;
  --maxw: 1240px;
  --content: 72ch;
  --font: Inter, "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

[data-theme="light"] {
  --bg: #fafafa;
  --bg-soft: #f4f4f7;
  --panel: #ffffff;
  --panel-2: #f6f6f9;
  --text: #16161e;
  --text-soft: #3d3d4b;
  --muted: #61616f;
  --border: #e5e5ec;
  --border-strong: #d5d5df;
  --accent: #e2650b;
  --accent-text: #b34b04;
  --accent-soft: rgba(226, 101, 11, 0.1);
  --code-bg: #f2f2f6;
  --shadow: 0 12px 30px rgba(18, 18, 26, 0.08);
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 96px; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a { color: var(--accent-text); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 3px; }
a:focus-visible, button:focus-visible, input:focus-visible, summary:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 6px;
}

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

.skip {
  position: absolute; left: -9999px; top: 8px; z-index: 100;
  background: var(--accent); color: #14141a; padding: 10px 16px;
  border-radius: 8px; font-weight: 600;
}
.skip:focus { left: 12px; }

/* ---------- top bar ---------- */
.topbar {
  position: sticky; top: 0; z-index: 40;
  background: color-mix(in srgb, var(--bg) 86%, transparent);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.topbar-inner {
  max-width: var(--maxw); margin: 0 auto; padding: 12px 24px;
  display: flex; align-items: center; gap: 18px;
}
.brand { display: flex; align-items: center; gap: 10px; color: var(--text); font-weight: 600; }
.brand:hover { text-decoration: none; }
.brand-mark {
  display: grid; place-items: center; width: 32px; height: 32px;
  border-radius: 9px; background: var(--panel-2); border: 1px solid var(--border-strong);
  font-weight: 800; letter-spacing: -0.5px;
}
.brand-mark span { color: var(--accent); }
.brand-text b { color: var(--accent-text); font-weight: 700; }

.search { flex: 1; max-width: 440px; position: relative; display: flex; }
.search input {
  width: 100%; padding: 9px 40px 9px 14px;
  background: var(--panel); color: var(--text);
  border: 1px solid var(--border); border-radius: 10px;
  font: inherit; font-size: 14px;
}
.search input::placeholder { color: var(--muted); }
.search button {
  position: absolute; right: 6px; top: 50%; transform: translateY(-50%);
  background: none; border: 0; color: var(--muted); font-size: 19px; cursor: pointer;
  padding: 4px 8px; border-radius: 6px;
}
.search button:hover { color: var(--accent-text); }

.topbar-actions { display: flex; align-items: center; gap: 8px; margin-left: auto; }
.langs { display: flex; gap: 2px; }
.langs a {
  font-size: 12px; font-weight: 700; letter-spacing: 0.4px;
  padding: 5px 8px; border-radius: 7px; color: var(--muted);
}
.langs a[aria-current="true"] { color: var(--text); background: var(--panel-2); }
.langs a:hover { color: var(--text); text-decoration: none; }

.btn {
  display: inline-flex; align-items: center; gap: 8px;
  font: inherit; font-size: 13.5px; font-weight: 600;
  padding: 8px 13px; border-radius: 9px; cursor: pointer;
  border: 1px solid var(--border-strong); background: var(--panel);
  color: var(--text);
}
.btn:hover { border-color: var(--accent); color: var(--accent-text); text-decoration: none; }
.btn-primary { background: var(--accent); border-color: var(--accent); color: #14141a; }
.btn-primary:hover { background: #ff8a36; color: #14141a; }
.btn-icon { padding: 7px 10px; }
.menu-toggle { display: none; }

/* ---------- layout ---------- */
.shell {
  max-width: var(--maxw); margin: 0 auto; padding: 28px 24px 64px;
  display: grid; grid-template-columns: 258px minmax(0, 1fr); gap: 36px;
  align-items: start;
}

.sidebar { position: sticky; top: 84px; font-size: 14.5px; }
.side-title {
  margin: 22px 0 8px; font-size: 11.5px; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--muted); font-weight: 700;
}
.side-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 2px; }
.side-link {
  display: flex; align-items: center; gap: 9px;
  padding: 8px 10px; border-radius: 9px; color: var(--text-soft);
}
.side-link:hover { background: var(--panel); color: var(--text); text-decoration: none; }
.side-link.is-active { background: var(--accent-soft); color: var(--accent-text); }
.side-link .ico { width: 18px; text-align: center; opacity: 0.9; }
.side-link .count { margin-left: auto; font-size: 12px; color: var(--muted); }
.side-note { margin-top: 26px; padding-top: 6px; border-top: 1px solid var(--border); display: grid; gap: 2px; }

.main { min-width: 0; }

/* ---------- hero / home ---------- */
.hero {
  padding: 34px 32px; border-radius: var(--radius);
  border: 1px solid var(--border); background:
    radial-gradient(1100px 320px at 8% -30%, var(--accent-soft), transparent 62%),
    var(--panel);
}
.hero h1 { margin: 0 0 12px; font-size: clamp(30px, 4.4vw, 46px); line-height: 1.12; letter-spacing: -0.02em; }
.hero p { margin: 0; max-width: 66ch; color: var(--text-soft); font-size: 17px; }
.hero-stats { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 22px; }
.chip {
  font-size: 12.5px; font-weight: 600; color: var(--text-soft);
  border: 1px solid var(--border-strong); background: var(--bg-soft);
  padding: 5px 11px; border-radius: 999px;
}

.section { margin-top: 44px; }
.section-head { display: flex; align-items: baseline; justify-content: space-between; gap: 16px; margin-bottom: 16px; }
.section h2 { margin: 0; font-size: 21px; letter-spacing: -0.01em; }
.section-sub { margin: 0; color: var(--muted); font-size: 14px; }

.cards { display: grid; gap: 16px; grid-template-columns: repeat(auto-fill, minmax(268px, 1fr)); }
.card {
  display: flex; flex-direction: column; gap: 8px;
  padding: 20px; border-radius: var(--radius);
  border: 1px solid var(--border); background: var(--panel);
  color: var(--text); transition: border-color .15s ease, transform .15s ease;
}
.card:hover { border-color: var(--border-strong); text-decoration: none; transform: translateY(-2px); }
.card .kicker { font-size: 11.5px; letter-spacing: .1em; text-transform: uppercase; color: var(--accent-text); font-weight: 700; }
.card h3 { margin: 0; font-size: 17.5px; line-height: 1.35; }
.card p { margin: 0; color: var(--text-soft); font-size: 14.5px; }
.card .meta { margin-top: auto; padding-top: 10px; display: flex; gap: 12px; font-size: 12.5px; color: var(--muted); }

.card-lg { padding: 24px; }
.card-lg h3 { font-size: 19px; }

.routes { display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(270px, 1fr)); }
.route { padding: 22px; border-radius: var(--radius); border: 1px solid var(--border); background: var(--panel); }
.route h3 { margin: 0 0 4px; font-size: 17px; }
.route > p { margin: 0 0 12px; color: var(--text-soft); font-size: 14.5px; }
.route ul { margin: 0; padding: 0; list-style: none; display: grid; gap: 6px; }
.route li a { display: flex; gap: 8px; font-size: 14.5px; }
.route li a::before { content: "→"; color: var(--accent); }

.topics { display: grid; gap: 12px; grid-template-columns: repeat(auto-fill, minmax(210px, 1fr)); }
.topic {
  display: flex; align-items: center; gap: 12px; padding: 14px 16px;
  border: 1px solid var(--border); border-radius: var(--radius-sm);
  background: var(--bg-soft); color: var(--text);
}
.topic:hover { border-color: var(--accent); text-decoration: none; }
.topic .ico { font-size: 20px; }
.topic .n { margin-left: auto; font-size: 12.5px; color: var(--muted); }

/* ---------- article ---------- */
.crumbs { display: flex; flex-wrap: wrap; gap: 8px; font-size: 13px; color: var(--muted); margin-bottom: 18px; }
.crumbs a { color: var(--muted); }
.crumbs a:hover { color: var(--accent-text); }
.crumbs .sep { opacity: .5; }

.article-grid { display: grid; grid-template-columns: minmax(0, var(--content)) 232px; gap: 44px; align-items: start; }

.article-head { margin-bottom: 26px; }
.article-head h1 { margin: 0 0 12px; font-size: clamp(27px, 3.6vw, 38px); line-height: 1.18; letter-spacing: -0.02em; }
.lede { margin: 0 0 18px; color: var(--text-soft); font-size: 17.5px; }
.byline { display: flex; flex-wrap: wrap; gap: 8px 16px; font-size: 13px; color: var(--muted); }
.byline b { color: var(--text-soft); font-weight: 600; }

.notice {
  border: 1px solid var(--border-strong); border-left: 3px solid var(--accent);
  background: var(--accent-soft); color: var(--text-soft);
  padding: 12px 16px; border-radius: 8px; font-size: 14px; margin: 0 0 22px;
}

.prose { font-size: 16.5px; color: var(--text-soft); }
.prose > * + * { margin-top: 1.05em; }
.prose h2 { margin-top: 2.1em; font-size: 25px; line-height: 1.28; color: var(--text); letter-spacing: -0.01em; }
.prose h3 { margin-top: 1.7em; font-size: 19.5px; color: var(--text); }
.prose h2 + p, .prose h3 + p { margin-top: .5em; }
.prose strong { color: var(--text); }
.prose ul, .prose ol { padding-left: 1.3em; }
.prose li + li { margin-top: .4em; }
.prose a { text-decoration: underline; text-underline-offset: 3px; text-decoration-color: color-mix(in srgb, var(--accent) 45%, transparent); }
.prose img { max-width: 100%; height: auto; border-radius: 10px; border: 1px solid var(--border); }
.prose hr { border: 0; border-top: 1px solid var(--border); margin: 2.2em 0; }

.prose blockquote {
  margin: 1.4em 0; padding: 14px 18px;
  border-left: 3px solid var(--border-strong); background: var(--bg-soft);
  border-radius: 0 8px 8px 0; color: var(--text-soft);
}
.prose blockquote p { margin: 0; }

.callout { margin: 1.5em 0; padding: 14px 18px; border-radius: 10px; border: 1px solid var(--border-strong); background: var(--bg-soft); }
.callout p { margin: 0; }
.callout-label { font-size: 11.5px !important; letter-spacing: .12em; text-transform: uppercase; font-weight: 800; margin-bottom: 6px !important; }
.callout-note { border-left: 3px solid #6aa8ff; }
.callout-note .callout-label { color: #6aa8ff; }
.callout-tip { border-left: 3px solid var(--ok); }
.callout-tip .callout-label { color: var(--ok); }
.callout-warning { border-left: 3px solid var(--warn); }
.callout-warning .callout-label { color: var(--warn); }
.callout-important { border-left: 3px solid var(--accent); }
.callout-important .callout-label { color: var(--accent-text); }

.prose pre {
  position: relative; background: var(--code-bg); border: 1px solid var(--border);
  border-radius: 10px; padding: 16px 18px; overflow: auto;
  font-family: var(--mono); font-size: 13.5px; line-height: 1.6; color: var(--text);
}
.prose code { font-family: var(--mono); font-size: .9em; background: var(--code-bg); border: 1px solid var(--border); padding: 1px 6px; border-radius: 6px; }
.prose pre code { background: none; border: 0; padding: 0; font-size: inherit; }
.copy-btn {
  position: absolute; top: 8px; right: 8px; font: inherit; font-size: 11.5px;
  padding: 4px 9px; border-radius: 7px; cursor: pointer;
  background: var(--panel-2); color: var(--text-soft); border: 1px solid var(--border-strong);
  opacity: 0; transition: opacity .15s ease;
}
.prose pre:hover .copy-btn, .copy-btn:focus-visible { opacity: 1; }

.prose table { width: 100%; border-collapse: collapse; font-size: 14.5px; margin: 1.5em 0; display: block; overflow-x: auto; }
.prose th, .prose td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--border); vertical-align: top; }
.prose th { color: var(--text); font-size: 12.5px; letter-spacing: .05em; text-transform: uppercase; background: var(--bg-soft); }
.prose tr:hover td { background: color-mix(in srgb, var(--panel) 60%, transparent); }

.toc { position: sticky; top: 92px; font-size: 13.5px; }
.toc .side-title { margin-top: 0; }
.toc ol { list-style: none; margin: 0; padding: 0; display: grid; gap: 5px; border-left: 1px solid var(--border); }
.toc li { padding-left: 12px; }
.toc a { color: var(--muted); display: block; padding: 2px 0; }
.toc a:hover { color: var(--accent-text); text-decoration: none; }
.toc .lvl-3 { padding-left: 24px; font-size: 13px; }

.sources { margin-top: 46px; padding: 22px; border: 1px solid var(--border); border-radius: var(--radius); background: var(--panel); }
.sources h2 { margin: 0 0 6px; font-size: 17px; }
.sources p.hint { margin: 0 0 14px; color: var(--muted); font-size: 13.5px; }
.sources ol { margin: 0; padding-left: 1.2em; display: grid; gap: 8px; font-size: 14.5px; }
.sources .src-meta { color: var(--muted); font-size: 12.5px; }
.sources a { word-break: break-word; }

.next { margin-top: 30px; display: grid; gap: 12px; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.next a {
  display: block; padding: 18px; border-radius: var(--radius-sm);
  border: 1px solid var(--border); background: var(--bg-soft); color: var(--text);
}
.next a:hover { border-color: var(--accent); text-decoration: none; }
.next .t { font-weight: 650; margin-bottom: 4px; }
.next .s { font-size: 13.5px; color: var(--text-soft); }
.next .a { margin-top: 10px; font-size: 13px; color: var(--accent-text); font-weight: 600; }

.pager { margin-top: 34px; display: flex; justify-content: space-between; gap: 16px; border-top: 1px solid var(--border); padding-top: 20px; }
.pager a { max-width: 48%; }
.pager .dir { display: block; font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: .1em; }
.pager .next-link { text-align: right; margin-left: auto; }

/* ---------- lists / search ---------- */
.page-head { margin-bottom: 24px; }
.page-head h1 { margin: 0 0 8px; font-size: clamp(26px, 3vw, 34px); letter-spacing: -0.02em; }
.page-head p { margin: 0; color: var(--text-soft); }

.result-list { display: grid; gap: 10px; }
.result {
  display: block; padding: 16px 18px; border-radius: var(--radius-sm);
  border: 1px solid var(--border); background: var(--panel); color: var(--text);
}
.result:hover { border-color: var(--accent); text-decoration: none; }
.result .kick { font-size: 12px; color: var(--muted); }
.result h3 { margin: 4px 0 4px; font-size: 16.5px; }
.result p { margin: 0; color: var(--text-soft); font-size: 14px; }

.empty { padding: 40px 24px; text-align: center; border: 1px dashed var(--border-strong); border-radius: var(--radius); color: var(--text-soft); }
.empty h2 { margin: 0 0 8px; font-size: 18px; color: var(--text); }
.empty p { margin: 0 0 14px; }

/* ---------- footer ---------- */
.footer { border-top: 1px solid var(--border); background: var(--bg-soft); }
.footer-inner { max-width: var(--maxw); margin: 0 auto; padding: 26px 24px 40px; font-size: 13px; color: var(--muted); }
.footer-inner p { margin: 0 0 6px; }
.muted { color: var(--muted); }

/* ---------- responsive ---------- */
@media (max-width: 1080px) {
  .article-grid { grid-template-columns: minmax(0, 1fr) 200px; gap: 30px; }
}

@media (max-width: 960px) {
  .shell { grid-template-columns: minmax(0, 1fr); padding: 20px 18px 56px; gap: 0; }
  .sidebar {
    position: fixed; inset: 64px auto 0 0; width: min(84vw, 320px); z-index: 60;
    background: var(--bg); border-right: 1px solid var(--border);
    padding: 8px 16px 40px; overflow-y: auto; transform: translateX(-102%);
    transition: transform .2s ease; box-shadow: var(--shadow);
  }
  body[data-menu="open"] .sidebar { transform: translateX(0); }
  body[data-menu="open"]::after {
    content: ""; position: fixed; inset: 64px 0 0 0; background: rgba(0,0,0,.5); z-index: 50;
  }
  .menu-toggle { display: inline-flex; }
  .article-grid { grid-template-columns: minmax(0, 1fr); }
  .toc { position: static; order: -1; border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 14px 16px; background: var(--panel); }
  .toc ol { border-left: 0; }
  .toc li { padding-left: 0; }
  .toc .lvl-3 { padding-left: 14px; }
}

@media (max-width: 720px) {
  .topbar-inner { padding: 10px 14px; gap: 10px; flex-wrap: wrap; }
  .search { order: 3; flex-basis: 100%; max-width: none; }
  .topbar-actions .btn-ghost { display: none; }
  .hero { padding: 24px 20px; }
  .section { margin-top: 34px; }
  .section-head { flex-direction: column; align-items: flex-start; gap: 4px; }
  .cards { grid-template-columns: 1fr; }
  .article-head h1 { font-size: 27px; }
  .prose { font-size: 16px; }
  .pager { flex-direction: column; }
  .pager a { max-width: 100%; }
  .pager .next-link { text-align: left; margin-left: 0; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}

@media print {
  .topbar, .sidebar, .toc, .footer, .pager, .next, .copy-btn { display: none !important; }
  body { background: #fff; color: #000; }
  .article-grid { display: block; }
}

/* ---------- catalog mega-menu (WIKI-20261028) ---------- */
.catalog { position: relative; }
.btn-catalog { gap: 6px; }
.btn-catalog .caret { font-size: 10px; opacity: .7; transition: transform .15s ease; }
.catalog[open] .caret { transform: rotate(180deg); }
.catalog[open] > summary { border-color: var(--accent); color: var(--accent-text); }
.catalog-panel {
  position: absolute; top: calc(100% + 10px); left: 0; z-index: 70;
  width: min(780px, calc(100vw - 32px)); max-height: min(74vh, 620px); overflow: auto;
  background: var(--panel); border: 1px solid var(--border-strong);
  border-radius: var(--radius); box-shadow: var(--shadow); padding: 18px;
}
.catalog-search { display: flex; position: relative; margin-bottom: 14px; }
.catalog-search input {
  width: 100%; padding: 10px 42px 10px 14px; font: inherit; font-size: 14px;
  background: var(--bg-soft); color: var(--text); border: 1px solid var(--border);
  border-radius: 10px;
}
.catalog-search button {
  position: absolute; right: 6px; top: 50%; transform: translateY(-50%);
  background: none; border: 0; color: var(--muted); font-size: 18px; cursor: pointer;
}
.catalog-grid { display: grid; grid-template-columns: 1.5fr 1fr; gap: 20px; }
.catalog-col .side-title:first-child { margin-top: 0; }
.catalog-group { margin-bottom: 12px; }
.catalog-item {
  display: flex; align-items: center; gap: 9px; padding: 7px 9px;
  border-radius: 8px; color: var(--text); font-weight: 600; font-size: 14.5px;
}
.catalog-item:hover { background: var(--accent-soft); color: var(--accent-text); text-decoration: none; }
.catalog-item .count { margin-left: auto; font-size: 12px; color: var(--muted); font-weight: 400; }
.catalog-sub { list-style: none; margin: 2px 0 0 30px; padding: 0; display: grid; gap: 2px; }
.catalog-sub a { display: block; padding: 4px 8px; border-radius: 6px; font-size: 13.5px; color: var(--text-soft); }
.catalog-sub a:hover { background: var(--bg-soft); color: var(--accent-text); text-decoration: none; }
.catalog-side { border-left: 1px solid var(--border); padding-left: 18px; }

/* ---------- orientation, share ---------- */
.orient { margin: 16px 0 0; display: grid; gap: 8px; }
.orient-line { margin: 0; display: flex; flex-wrap: wrap; align-items: baseline; gap: 8px; color: var(--text-soft); font-size: 14.5px; }
.learn-list { margin: 0; padding-left: 18px; display: grid; gap: 3px; }
.learn-list li { margin: 0; }

.share { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin-top: 18px; }
.share-label { font-size: 12.5px; color: var(--muted); text-transform: uppercase; letter-spacing: .08em; }
.share-btn {
  font: inherit; font-size: 13px; font-weight: 600; cursor: pointer;
  padding: 5px 10px; border-radius: 8px; color: var(--text-soft);
  background: var(--bg-soft); border: 1px solid var(--border);
}
.share-btn:hover { border-color: var(--accent); color: var(--accent-text); text-decoration: none; }

/* ---------- connections ---------- */
.conn-map { margin: 6px 0 16px; }
.conn-canvas {
  position: relative; height: 260px; border: 1px solid var(--border);
  border-radius: var(--radius); background:
    radial-gradient(600px 200px at 50% 0%, var(--accent-soft), transparent 70%),
    var(--bg-soft);
  overflow: hidden;
}
.conn-canvas svg { width: 100%; height: 100%; display: block; }
.conn-canvas .node { cursor: pointer; }
.conn-canvas text { font-size: 11px; fill: var(--text-soft); }
.conn-canvas .edge { stroke: var(--border-strong); stroke-width: 1.2; }
.conn-groups { display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); }
.conn-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 5px; font-size: 14.5px; }
.conn-list a::before { content: "↗"; color: var(--accent); margin-right: 6px; }

/* ---------- comments ---------- */
.comments h2 .count { font-size: 14px; color: var(--muted); font-weight: 400; }
.comment-form { display: grid; gap: 10px; margin-bottom: 22px; }
.comment-form input[type="text"], .comment-form textarea {
  width: 100%; font: inherit; font-size: 14.5px; padding: 10px 12px;
  background: var(--panel); color: var(--text); border: 1px solid var(--border);
  border-radius: 10px;
}
.comment-row { max-width: 100%; }
.comment-form input[type="text"] { max-width: 380px; }
.comment-actions { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 10px; }
.comment-note { font-size: 12.5px; max-width: 60ch; }
.hp-field { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.comment-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 14px; }
.comment { border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 14px 16px; background: var(--panel); }
.comment .c-head { display: flex; gap: 10px; align-items: baseline; font-size: 13px; color: var(--muted); margin-bottom: 6px; }
.comment .c-head b { color: var(--text); font-size: 14px; }
.comment p { margin: 0; color: var(--text-soft); }
.comment .replies { list-style: none; margin: 10px 0 0; padding-left: 16px; border-left: 2px solid var(--border); display: grid; gap: 6px; font-size: 14px; color: var(--text-soft); }
.notice-error { border-left-color: #e5534b; background: rgba(229, 83, 75, .1); }

@media (max-width: 860px) {
  .catalog-panel { width: calc(100vw - 24px); left: 12px; right: 12px; padding: 14px; }
  .catalog-grid { grid-template-columns: 1fr; }
  .catalog-side { border-left: 0; padding-left: 0; border-top: 1px solid var(--border); padding-top: 10px; }
  .conn-canvas { height: 220px; }
}

/* ---------- learning paths (WIKI-20261028) ---------- */
.path-steps { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.path-step {
  display: flex; gap: 14px; padding: 16px 18px; border: 1px solid var(--border);
  border-radius: var(--radius-sm); background: var(--panel);
}
.path-num {
  flex: 0 0 auto; width: 26px; height: 26px; border-radius: 50%;
  display: grid; place-items: center; font-size: 13px; font-weight: 700;
  background: var(--accent-soft); color: var(--accent-text);
}
.path-step a { font-weight: 650; }
.path-step p { margin: 4px 0 6px; color: var(--text-soft); font-size: 14px; }
.path-step .meta { font-size: 12.5px; color: var(--muted); }