/* =========================================================================
   Rock-Chip.com — engineering portal theme
   Graphite #0B1016 · Panel #0F151D · Amber #F59E0B · Copper #FB923C · Cyan #22D3EE
   ========================================================================= */
:root {
  --bg: #0B1016;
  --bg-2: #0F151D;
  --bg-3: #121A24;
  --bg-code: #0A0E13;
  --line: rgba(230, 237, 243, 0.09);
  --line-2: rgba(230, 237, 243, 0.16);
  --text: #E6EDF3;
  --text-2: #C9D1D9;
  --muted: #8B98A9;
  --amber: #F59E0B;
  --amber-2: #FBBF24;
  --copper: #FB923C;
  --cyan: #22D3EE;
  --green: #34D399;
  --red: #F87171;

  --radius: 14px;
  --maxw: 1200px;
  --shadow: 0 18px 50px -24px rgba(0, 0, 0, 0.7);
  --glow: 0 10px 36px -12px rgba(245, 158, 11, 0.45);
  --mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
  --display: 'Space Grotesk', 'Inter', system-ui, sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100vh;
}
a { color: var(--cyan); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; }
:focus-visible { outline: 2px solid var(--amber); outline-offset: 2px; border-radius: 4px; }

.skip { position: absolute; left: -9999px; top: 8px; z-index: 200; background: var(--amber); color: #111; padding: 8px 14px; border-radius: 8px; }
.skip:focus { left: 12px; }

.grad {
  background: linear-gradient(110deg, var(--amber-2), var(--amber) 45%, var(--copper));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.muted { color: var(--muted); }
.center { text-align: center; }

/* Background: faint PCB grid fading from the top */
.bg-grid {
  position: fixed; inset: 0; z-index: -1; pointer-events: none;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: radial-gradient(ellipse 80% 50% at 50% 0%, #000 30%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 80% 50% at 50% 0%, #000 30%, transparent 100%);
}

/* ---------- Layout ---------- */
.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
.section { padding-top: 48px; padding-bottom: 48px; }
.narrow { max-width: 820px; }
.page-title {
  font-family: var(--display); font-weight: 700; letter-spacing: -0.8px;
  font-size: clamp(1.9rem, 4.2vw, 2.8rem); line-height: 1.1; margin: 8px 0 12px;
}
.lead { color: var(--text-2); font-size: 1.08rem; max-width: 760px; margin-bottom: 22px; }
.section__head { display: flex; align-items: baseline; justify-content: space-between; gap: 16px; flex-wrap: wrap; margin-bottom: 18px; }
.section__title { font-family: var(--display); font-size: clamp(1.3rem, 2.6vw, 1.7rem); font-weight: 700; letter-spacing: -0.3px; margin: 36px 0 16px; }
.section__head .section__title { margin: 0; }
.section__more { font-weight: 600; font-size: 0.95rem; color: var(--amber); }
.sub { font-family: var(--display); font-size: 1.1rem; margin: 26px 0 10px; }
.note { color: var(--muted); font-size: 0.9rem; margin-top: 14px; }
.improve { color: var(--muted); font-size: 0.9rem; margin-top: 36px; padding-top: 16px; border-top: 1px dashed var(--line-2); }

.grid { display: grid; gap: 16px; }
.grid--socs { grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); }
.grid--explore { grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); }
.grid--guides { grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); }
.grid--boards { grid-template-columns: repeat(auto-fill, minmax(270px, 1fr)); }
.grid--topics { grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); }
.grid--offers { grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; align-items: start; }
.grid-2--wide { grid-template-columns: 0.8fr 1.2fr; gap: 40px; }

/* ---------- Nav ---------- */
.nav { position: sticky; top: 0; z-index: 60; background: rgba(11, 16, 22, 0.82); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); border-bottom: 1px solid var(--line); }
.nav__inner { max-width: var(--maxw); margin: 0 auto; padding: 12px 24px; display: flex; align-items: center; gap: 22px; }
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--text); flex-shrink: 0; }
.brand:hover { text-decoration: none; }
.brand__name { font-family: var(--display); font-weight: 700; font-size: 1.15rem; letter-spacing: -0.3px; }
.brand__tld { color: var(--amber); }
.nav__links { display: flex; gap: 2px; flex: 1; justify-content: center; }
.nav__links a { white-space: nowrap; color: var(--muted); font-size: 0.93rem; font-weight: 500; padding: 7px 11px; border-radius: 8px; transition: color .15s, background .15s; }
.nav__links a:hover { color: var(--text); background: rgba(230, 237, 243, 0.05); text-decoration: none; }
.nav__links a.is-active { color: var(--text); background: rgba(245, 158, 11, 0.1); }
.nav__actions { display: flex; align-items: center; gap: 10px; }
.nav__search { color: var(--muted); display: grid; place-items: center; width: 36px; height: 36px; border-radius: 9px; border: 1px solid var(--line); }
.nav__search:hover { color: var(--amber); border-color: var(--amber); }
.nav__toggle { display: none; background: none; border: 1px solid var(--line); color: var(--text); border-radius: 9px; width: 38px; height: 36px; cursor: pointer; place-items: center; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 11px 20px; border-radius: 10px; font-weight: 600; font-size: 0.95rem;
  cursor: pointer; border: 1px solid transparent; white-space: nowrap; font-family: inherit;
  transition: transform .15s, box-shadow .2s, background .2s, border-color .2s, color .2s;
}
.btn:hover { text-decoration: none; }
.btn--primary { background: linear-gradient(110deg, var(--amber-2), var(--amber) 50%, var(--copper)); color: #1a1204; box-shadow: var(--glow); }
.btn--primary:hover { transform: translateY(-1px); box-shadow: 0 14px 40px -12px rgba(245, 158, 11, 0.6); }
.btn--ghost { background: rgba(230, 237, 243, 0.04); border-color: var(--line-2); color: var(--text); }
.btn--ghost:hover { border-color: var(--amber); color: var(--amber); }
.btn--sm { padding: 8px 14px; font-size: 0.86rem; border-radius: 9px; }
.btn[disabled] { opacity: .6; cursor: progress; }

/* ---------- Pills / tags ---------- */
.pill { display: inline-block; font-size: 0.72rem; font-weight: 600; letter-spacing: .4px; text-transform: uppercase; padding: 3px 9px; border-radius: 999px; color: var(--amber); background: rgba(245, 158, 11, 0.1); border: 1px solid rgba(245, 158, 11, 0.25); }
.pill--linux { color: var(--cyan); background: rgba(34, 211, 238, .08); border-color: rgba(34, 211, 238, .25); }
.pill--android { color: var(--green); background: rgba(52, 211, 153, .08); border-color: rgba(52, 211, 153, .25); }
.pill--ai { color: #C4B5FD; background: rgba(167, 139, 250, .1); border-color: rgba(167, 139, 250, .3); }
.pill--debugging { color: var(--red); background: rgba(248, 113, 113, .08); border-color: rgba(248, 113, 113, .25); }
.tag { display: inline-block; font-family: var(--mono); font-size: 0.8rem; padding: 3px 9px; border-radius: 7px; background: var(--bg-3); border: 1px solid var(--line-2); color: var(--text-2); }
a.tag:hover { border-color: var(--amber); color: var(--amber); text-decoration: none; }
.tags { list-style: none; display: flex; flex-wrap: wrap; gap: 8px; }
.tags li { font-size: 0.85rem; padding: 4px 10px; border-radius: 7px; background: var(--bg-3); border: 1px solid var(--line); color: var(--text-2); }

/* ---------- Hero ---------- */
.hero { position: relative; padding: 72px 24px 40px; text-align: center; }
.hero::before {
  content: ''; position: absolute; top: -140px; left: 50%; transform: translateX(-50%);
  width: 900px; max-width: 130vw; height: 520px; z-index: -1; pointer-events: none;
  background: radial-gradient(closest-side, rgba(245, 158, 11, 0.16), rgba(251, 146, 60, 0.05) 55%, transparent 75%);
}
.hero--sub { padding-top: 56px; }
.hero__inner { max-width: 860px; margin: 0 auto; }
.kicker { display: inline-flex; align-items: center; gap: 8px; padding: 6px 14px; border-radius: 999px; border: 1px solid var(--line-2); background: rgba(230, 237, 243, 0.03); color: var(--text-2); font-size: 0.85rem; font-weight: 500; }
.kicker .ico { color: var(--amber); }
.hero__title { font-family: var(--display); font-weight: 700; font-size: clamp(2.6rem, 8vw, 4.8rem); line-height: 1.02; letter-spacing: -2px; margin: 20px 0 16px; }
.hero__title--sm { font-size: clamp(2rem, 5.5vw, 3.4rem); letter-spacing: -1.2px; }
.hero__sub { color: var(--text-2); font-size: 1.13rem; max-width: 660px; margin: 0 auto 28px; }
.hero__cta { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.hero__chips { display: flex; flex-wrap: wrap; gap: 8px 14px; justify-content: center; margin-top: 16px; font-size: 0.88rem; color: var(--muted); }
.hero__chips a { color: var(--text-2); border-bottom: 1px dashed var(--line-2); }
.hero__chips a:hover { color: var(--amber); text-decoration: none; border-color: var(--amber); }

/* ---------- Search ---------- */
.search { position: relative; display: flex; align-items: center; gap: 10px; background: var(--bg-2); border: 1px solid var(--line-2); border-radius: 12px; padding: 6px 6px 6px 14px; text-align: left; transition: border-color .2s, box-shadow .2s; }
.search:focus-within { border-color: var(--amber); box-shadow: 0 0 0 4px rgba(245, 158, 11, 0.12); }
.search .ico { color: var(--muted); flex-shrink: 0; }
.search input { flex: 1; min-width: 0; background: none; border: none; color: var(--text); font-size: 1rem; padding: 8px 0; font-family: inherit; }
.search input:focus { outline: none; box-shadow: none; }
.search--big { padding: 8px 8px 8px 18px; border-radius: 14px; box-shadow: var(--shadow); }
.search--big input { font-size: 1.06rem; padding: 10px 0; }
.search__results { position: absolute; top: calc(100% + 6px); left: 0; right: 0; z-index: 40; background: var(--bg-2); border: 1px solid var(--line-2); border-radius: 12px; box-shadow: var(--shadow); overflow: hidden; }
.search__results a { display: flex; gap: 10px; align-items: baseline; padding: 10px 14px; color: var(--text); border-bottom: 1px solid var(--line); }
.search__results a:last-child { border-bottom: none; }
.search__results a:hover, .search__results a.is-active { background: rgba(245, 158, 11, 0.07); text-decoration: none; }
.search__results .pill { flex-shrink: 0; }
.search__results small { color: var(--muted); display: block; font-size: 0.82rem; }

/* ---------- Cards ---------- */
.card { display: block; background: var(--bg-3); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; color: var(--text); transition: transform .18s, border-color .18s, box-shadow .18s; }
a.card:hover { transform: translateY(-3px); border-color: rgba(245, 158, 11, 0.45); box-shadow: var(--shadow); text-decoration: none; }
.card h3 { font-family: var(--display); font-size: 1.1rem; line-height: 1.3; margin-bottom: 6px; color: var(--text); }
.card p { color: var(--muted); font-size: 0.93rem; }

.soc-card__head { display: flex; justify-content: space-between; align-items: center; gap: 8px; margin-bottom: 10px; }
.soc-card__name { font-family: var(--mono); font-weight: 600; font-size: 1.35rem; letter-spacing: -0.5px; }
.soc-card__cpu { font-size: 0.88rem !important; min-height: 2.8em; }
.soc-card__stats { display: flex; gap: 14px; margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); font-size: 0.8rem; color: var(--muted); }
.soc-card__stats b { color: var(--text); font-weight: 600; }

.explore-card { display: flex; align-items: center; gap: 14px; padding: 16px 18px; }
.explore-card strong { display: block; font-family: var(--display); font-size: 1.05rem; }
.explore-card small { color: var(--muted); font-size: 0.85rem; }
.explore-card__icon { display: inline-grid; place-items: center; width: 44px; height: 44px; flex-shrink: 0; border-radius: 11px; color: var(--amber); background: linear-gradient(135deg, rgba(245, 158, 11, 0.16), rgba(251, 146, 60, 0.06)); border: 1px solid rgba(245, 158, 11, 0.25); }

.guide-card { display: flex; flex-direction: column; gap: 8px; }
.guide-card__meta { display: flex; align-items: center; gap: 10px; font-size: 0.8rem; color: var(--muted); }
.guide-card p { flex: 1; }
.guide-card__foot { font-size: 0.8rem; color: var(--muted); font-family: var(--mono); }

.board-card__top { display: flex; justify-content: space-between; align-items: center; margin-bottom: 10px; }
.board-card__form { font-size: 0.8rem; color: var(--muted); }
.board-card__vendor { font-size: 0.85rem !important; margin-bottom: 10px; }
.board-card__specs { list-style: none; font-size: 0.85rem; color: var(--text-2); display: grid; gap: 4px; border-top: 1px solid var(--line); padding-top: 10px; }
.board-card__specs span { display: inline-block; width: 72px; color: var(--muted); font-size: 0.78rem; text-transform: uppercase; letter-spacing: .3px; }

.topic-card { display: flex; flex-direction: column; gap: 8px; }
.topic-card small { color: var(--amber); font-weight: 600; margin-top: auto; }
.offer h3 { margin-top: 12px; }

/* ---------- CTA ---------- */
.cta {
  display: flex; align-items: center; justify-content: space-between; gap: 28px; flex-wrap: wrap;
  margin: 40px 0 16px; padding: 36px 36px; border-radius: 18px;
  background:
    radial-gradient(ellipse 60% 120% at 100% 0%, rgba(245, 158, 11, 0.16), transparent 60%),
    linear-gradient(135deg, #141c27, #0F151D);
  border: 1px solid rgba(245, 158, 11, 0.28);
  box-shadow: var(--shadow);
}
.cta h2 { font-family: var(--display); font-size: clamp(1.35rem, 3vw, 1.8rem); letter-spacing: -0.4px; margin-bottom: 6px; }
.cta p { color: var(--text-2); max-width: 620px; }
.cta__actions { display: flex; gap: 10px; flex-wrap: wrap; }

/* ---------- Breadcrumbs / TOC / tabs ---------- */
.crumbs { display: flex; flex-wrap: wrap; gap: 6px; font-size: 0.85rem; color: var(--muted); padding-top: 22px; }
.crumbs a { color: var(--muted); }
.crumbs a:hover { color: var(--amber); }
.crumbs span[aria-current] { color: var(--text-2); }
.crumbs__sep { opacity: .5; }
.toc, .tabs { display: flex; flex-wrap: wrap; gap: 8px; margin: 18px 0 8px; }
.toc a, .tabs a { font-size: 0.88rem; padding: 6px 12px; border-radius: 8px; border: 1px solid var(--line); color: var(--text-2); background: var(--bg-2); }
.toc a:hover, .tabs a:hover { border-color: var(--amber); color: var(--amber); text-decoration: none; }
.tabs a.is-active { background: rgba(245, 158, 11, 0.12); border-color: rgba(245, 158, 11, 0.4); color: var(--amber); }
.tabs { margin-bottom: 24px; }

/* ---------- Tables ---------- */
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); }
.table { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
.table th, .table td { text-align: left; padding: 10px 14px; border-bottom: 1px solid var(--line); vertical-align: top; }
.table thead th { background: var(--bg-2); color: var(--muted); font-weight: 600; font-size: 0.78rem; text-transform: uppercase; letter-spacing: .4px; white-space: nowrap; }
.table tbody tr:hover { background: rgba(230, 237, 243, 0.02); }
.table tbody tr:last-child td, .table tbody tr:last-child th { border-bottom: none; }
.table small { color: var(--muted); }
.table--kv { border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; border-collapse: separate; border-spacing: 0; }
.table--kv th { width: 30%; color: var(--muted); font-weight: 500; background: var(--bg-2); }
.table--kv td { color: var(--text); }

/* ---------- SoC page ---------- */
.soc__hero { display: grid; grid-template-columns: 1.4fr 1fr; gap: 28px; align-items: start; }
.soc__facts { display: grid; gap: 12px; }
.soc__facts div { display: grid; gap: 2px; padding-bottom: 10px; border-bottom: 1px solid var(--line); }
.soc__facts span { font-size: 0.75rem; text-transform: uppercase; letter-spacing: .5px; color: var(--muted); }
.soc__facts b { font-weight: 500; font-size: 0.93rem; }
.highlights { list-style: none; display: flex; flex-wrap: wrap; gap: 8px; }
.highlights li { font-size: 0.86rem; padding: 5px 11px; border-radius: 8px; background: rgba(245, 158, 11, 0.08); border: 1px solid rgba(245, 158, 11, 0.22); color: var(--amber-2); }
.dev-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 12px; }
.dev-item { background: var(--bg-3); border: 1px solid var(--line); border-radius: 12px; padding: 14px 16px; }
.dev-item a { font-weight: 600; font-family: var(--display); }
.dev-item p { color: var(--text-2); font-size: 0.9rem; margin-top: 4px; }

.bullets { padding-left: 1.2em; color: var(--text-2); }
.bullets li { margin-bottom: 6px; }
.bullets--warn li::marker { color: var(--copper); }
.checks { list-style: none; display: grid; gap: 10px; margin-bottom: 8px; }
.checks li { position: relative; padding-left: 28px; color: var(--text-2); }
.checks li::before { content: ''; position: absolute; left: 0; top: 0.35em; width: 16px; height: 16px; border-radius: 5px; background: rgba(245, 158, 11, 0.14); border: 1px solid rgba(245, 158, 11, 0.4); }
.checks li::after { content: ''; position: absolute; left: 5px; top: 0.55em; width: 6px; height: 9px; border: solid var(--amber); border-width: 0 2px 2px 0; transform: rotate(45deg); }
.ref-list { list-style: none; display: grid; gap: 8px; }
.ref-list a { display: inline-flex; gap: 6px; color: var(--cyan); }

/* ---------- Topic / board / article layouts ---------- */
.topic-layout, .board-layout { display: grid; grid-template-columns: 1fr 320px; gap: 32px; align-items: start; }
.side h3 { font-family: var(--display); font-size: 1rem; margin: 18px 0 8px; }
.side h3:first-child { margin-top: 0; }
.side p { margin-bottom: 12px; }
.side__list { list-style: none; display: grid; gap: 6px; font-size: 0.93rem; }
.side--sticky { position: sticky; top: 84px; }
.applies { margin-top: -6px; display: flex; flex-wrap: wrap; gap: 6px; align-items: center; color: var(--muted); font-size: 0.9rem; }
.article__meta { color: var(--muted); font-size: 0.88rem; margin-bottom: 14px; }
.article__layout { display: grid; grid-template-columns: minmax(0, 1fr) 280px; gap: 40px; margin-top: 28px; align-items: start; }

/* ---------- Prose (guide bodies) ---------- */
.prose { color: var(--text-2); font-size: 1.03rem; line-height: 1.75; min-width: 0; }
.prose > * + * { margin-top: 16px; }
.prose h2 { font-family: var(--display); font-size: 1.45rem; color: var(--text); letter-spacing: -0.3px; margin-top: 36px; padding-top: 8px; }
.prose h3 { font-size: 1.15rem; color: var(--text); margin-top: 26px; }
.prose ul, .prose ol { padding-left: 1.3em; }
.prose li + li { margin-top: 6px; }
.prose li > pre { margin-top: 10px; }
.prose strong { color: var(--text); }
.prose a { color: var(--cyan); text-decoration: underline; text-decoration-color: rgba(34, 211, 238, .35); text-underline-offset: 3px; }
.prose code { font-family: var(--mono); font-size: 0.86em; background: var(--bg-code); border: 1px solid var(--line); padding: 1px 6px; border-radius: 6px; color: #F3D9A4; }
.prose pre { position: relative; background: var(--bg-code); border: 1px solid var(--line); border-radius: 12px; padding: 16px 18px; overflow-x: auto; line-height: 1.55; }
.prose pre code { background: none; border: none; padding: 0; color: #D6DEE6; font-size: 0.86rem; white-space: pre; }
.prose table { width: 100%; border-collapse: collapse; font-size: 0.92rem; display: block; overflow-x: auto; }
.prose th, .prose td { border: 1px solid var(--line); padding: 8px 12px; text-align: left; vertical-align: top; }
.prose th { background: var(--bg-2); color: var(--text); font-weight: 600; }
.prose .callout, .callout { border-left: 3px solid var(--amber); background: rgba(245, 158, 11, 0.06); padding: 14px 18px; border-radius: 0 10px 10px 0; color: var(--text); }
.copy-btn { position: absolute; top: 8px; right: 8px; font-size: 0.75rem; font-family: inherit; padding: 4px 9px; border-radius: 7px; border: 1px solid var(--line-2); background: var(--bg-2); color: var(--muted); cursor: pointer; opacity: 0; transition: opacity .15s; }
.prose pre:hover .copy-btn, .copy-btn:focus { opacity: 1; }

/* ---------- Boards filters ---------- */
.filters { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 12px 14px; align-items: end; margin-bottom: 18px; }
.filters label { display: grid; gap: 5px; font-size: 0.8rem; color: var(--muted); font-weight: 500; }
.filters__checks { display: flex; gap: 16px; flex-wrap: wrap; grid-column: span 3; align-items: center; }
.filters__actions { display: flex; gap: 8px; grid-column: span 2; justify-content: flex-end; }
.check { display: inline-flex !important; align-items: center; gap: 7px; color: var(--text-2) !important; font-size: 0.9rem !important; cursor: pointer; }
.check input { width: 16px; height: 16px; accent-color: var(--amber); }
.results-count { margin: 6px 0 14px; font-size: 0.9rem; }

/* ---------- Forms ---------- */
.panel { padding: 26px; }
.panel h2 { font-family: var(--display); font-size: 1.3rem; margin-bottom: 4px; }
.panel + .panel { margin-top: 20px; }
.form { display: block; }
.field { display: flex; flex-direction: column; gap: 6px; margin-bottom: 14px; border: none; }
.field label, .field legend { font-size: 0.84rem; font-weight: 500; color: var(--text-2); }
.field legend { margin-bottom: 8px; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.field-row--3 { grid-template-columns: 1fr 1fr 1fr; }
.opt { color: var(--muted); font-weight: 400; }
input, textarea, select {
  width: 100%; background: var(--bg-code); border: 1px solid var(--line-2); border-radius: 10px;
  padding: 11px 13px; color: var(--text); font-family: inherit; font-size: 0.95rem;
  transition: border-color .2s, box-shadow .2s;
}
select { appearance: none; -webkit-appearance: none; cursor: pointer; padding-right: 32px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%238B98A9' stroke-width='2.5'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 12px center; }
input::placeholder, textarea::placeholder { color: #566273; }
input:focus, textarea:focus, select:focus { outline: none; border-color: var(--amber); box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.15); }
textarea { resize: vertical; min-height: 110px; }
.checks-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 8px 16px; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.form__status { margin-top: 12px; font-size: 0.92rem; font-weight: 500; min-height: 1.2em; }
.form__status.is-ok { color: var(--green); }
.form__status.is-err { color: var(--red); }
.fineprint { font-size: 0.8rem; color: var(--muted); margin-top: 8px; }

/* ---------- Services steps / projects ---------- */
.steps { list-style: none; counter-reset: s; display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.steps li { counter-increment: s; background: var(--bg-3); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; display: grid; gap: 4px; }
.steps li::before { content: counter(s, decimal-leading-zero); font-family: var(--mono); color: var(--amber); font-size: 0.85rem; }
.steps b { font-family: var(--display); }
.steps span { color: var(--muted); font-size: 0.9rem; }
.projects { display: grid; gap: 18px; }
.project { padding: 26px; scroll-margin-top: 90px; }
.project__head { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; }
.project h2 { font-family: var(--display); font-size: 1.35rem; }
.project .lead { font-size: 1rem; margin: 8px 0 16px; }
.project__cols { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-bottom: 18px; }
.project__cols h3 { font-size: 0.8rem; text-transform: uppercase; letter-spacing: .6px; color: var(--muted); margin-bottom: 8px; font-family: inherit; }
.project__cols .bullets { font-size: 0.92rem; }

/* ---------- Search results ---------- */
.results { display: grid; gap: 10px; margin-top: 18px; }
.result { display: grid; gap: 4px; padding: 14px 16px; background: var(--bg-3); border: 1px solid var(--line); border-radius: 12px; color: var(--text); }
.result:hover { border-color: rgba(245, 158, 11, 0.45); text-decoration: none; }
.result .pill { justify-self: start; }
.result .muted { font-size: 0.9rem; }

/* ---------- Footer ---------- */
.footer { border-top: 1px solid var(--line); margin-top: 56px; padding: 48px 24px 28px; background: linear-gradient(180deg, transparent, rgba(15, 21, 29, 0.8)); }
.footer__grid { max-width: var(--maxw); margin: 0 auto; display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 32px; }
.footer__tag { color: var(--amber); font-family: var(--mono); font-size: 0.82rem; letter-spacing: 1px; margin: 10px 0 8px; }
.footer__blurb { color: var(--muted); font-size: 0.9rem; max-width: 360px; }
.footer__col { display: flex; flex-direction: column; gap: 7px; }
.footer__col h4 { font-size: 0.78rem; text-transform: uppercase; letter-spacing: .8px; color: var(--text-2); margin-bottom: 4px; }
.footer__col a { color: var(--muted); font-size: 0.9rem; }
.footer__col a:hover { color: var(--amber); text-decoration: none; }
.footer__disclaimer { max-width: var(--maxw); margin: 36px auto 10px; padding-top: 20px; border-top: 1px solid var(--line); color: var(--muted); font-size: 0.82rem; }
.footer__copy { max-width: var(--maxw); margin: 0 auto; color: #5f6b7b; font-size: 0.82rem; }
.footer__copy a { color: var(--muted); }

/* ---------- Responsive ---------- */
@media (max-width: 1240px) {
  .nav__links { position: fixed; top: 61px; left: 0; right: 0; flex-direction: column; gap: 0; padding: 8px 16px 16px; background: rgba(11, 16, 22, 0.97); border-bottom: 1px solid var(--line); transform: translateY(-8px); opacity: 0; pointer-events: none; transition: opacity .18s, transform .18s; }
  .nav__links.is-open { opacity: 1; transform: none; pointer-events: auto; }
  .nav__links a { padding: 12px 10px; font-size: 1rem; }
  .nav__toggle { display: grid; }
  .nav__inner { justify-content: space-between; }
  .filters { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .filters__checks, .filters__actions { grid-column: span 3; justify-content: flex-start; }
  .footer__grid { grid-template-columns: 1fr 1fr; }
  .steps { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 860px) {
  .wrap { padding: 0 16px; }
  .section { padding-top: 32px; padding-bottom: 32px; }
  .hero { padding: 48px 16px 24px; }
  .soc__hero, .topic-layout, .board-layout, .article__layout, .grid-2, .grid-2--wide { grid-template-columns: 1fr; }
  .side--sticky { position: static; }
  .project__cols { grid-template-columns: 1fr; }
  .field-row, .field-row--3, .checks-grid { grid-template-columns: 1fr; }
  .grid--guides, .grid--socs, .grid--boards, .grid--topics, .grid--offers { grid-template-columns: 1fr; }
  .grid--explore { grid-template-columns: 1fr 1fr; }
  .explore-card { flex-direction: column; align-items: flex-start; }
  .cta { padding: 26px 20px; }
  .nav__cta { display: none; }
  .nav__inner { padding: 10px 16px; }
  .nav__links { top: 57px; }
  .filters { grid-template-columns: 1fr 1fr; }
  .filters__checks, .filters__actions { grid-column: span 2; }
  .search--big { flex-wrap: wrap; }
  .search--big .btn { width: 100%; }
}
@media (max-width: 520px) {
  .footer__grid { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  .grid--explore { grid-template-columns: 1fr; }
  .explore-card { flex-direction: row; align-items: center; }
}
@media (prefers-reduced-motion: reduce) {
  * { scroll-behavior: auto !important; transition: none !important; }
}

/* =========================================================================
   Community, comparisons, issues & tools
   ========================================================================= */
.mt { margin-top: 16px; }
.grid-2--even { grid-template-columns: 1fr 1fr; gap: 32px; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip { font-size: 0.86rem; padding: 6px 12px; border-radius: 999px; border: 1px solid var(--line-2); background: var(--bg-2); color: var(--text-2); }
.chip:hover { border-color: var(--amber); color: var(--amber); text-decoration: none; }
.tier-lead { margin: -8px 0 16px; }
.empty { text-align: center; padding: 28px; }
.empty p { margin-bottom: 14px; }

.tool-list { display: grid; gap: 10px; }
.tool { display: flex; align-items: center; gap: 14px; padding: 14px 16px; }
.tool strong { display: block; font-family: var(--display); }
.tool small { color: var(--muted); font-size: 0.85rem; }

/* FAQ */
.faq { display: grid; gap: 8px; }
.faq details { background: var(--bg-3); border: 1px solid var(--line); border-radius: 12px; padding: 0 16px; }
.faq summary { cursor: pointer; padding: 14px 0; font-weight: 600; color: var(--text); list-style: none; position: relative; padding-right: 26px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: '+'; position: absolute; right: 0; top: 12px; color: var(--amber); font-size: 1.2rem; }
.faq details[open] summary::after { content: '–'; }
.faq details p { color: var(--text-2); padding-bottom: 14px; }

/* Comparisons */
.vs { display: grid; grid-template-columns: 1fr auto 1fr; gap: 16px; align-items: stretch; margin: 10px 0 8px; }
.vs__card { display: flex; flex-direction: column; gap: 10px; }
.vs__card .pill { align-self: flex-start; }
.vs__card small { color: var(--amber); font-weight: 600; margin-top: auto; }
.vs__x { align-self: center; font-family: var(--mono); color: var(--muted); font-size: 1.1rem; }
.table--cmp th:first-child { width: 20%; color: var(--muted); font-weight: 500; }
.table--cmp tbody th { background: var(--bg-2); }

/* Known issues */
.issue-list { display: grid; gap: 8px; }
.issue-row { display: grid; gap: 4px; padding: 12px 16px; background: var(--bg-3); border: 1px solid var(--line); border-radius: 12px; color: var(--text); }
.issue-row:hover { border-color: rgba(248, 113, 113, 0.45); text-decoration: none; }
.issue-row code { font-family: var(--mono); font-size: 0.85rem; color: #FCA5A5; word-break: break-word; }
.issue-row span { color: var(--text-2); font-size: 0.93rem; }
.errline { background: #150d0d; border: 1px solid rgba(248, 113, 113, 0.35); border-radius: 10px; padding: 12px 16px; margin: 4px 0 16px; overflow-x: auto; }
.errline code { font-family: var(--mono); color: #FCA5A5; font-size: 0.92rem; white-space: pre-wrap; }
.fix-steps > li { margin-bottom: 18px; }
.fix-steps > li > p { margin-top: 6px; }

/* Community hub */
.stats-row { display: flex; flex-wrap: wrap; gap: 10px 26px; justify-content: center; margin-top: 26px; color: var(--muted); font-size: 0.92rem; }
.stats-row b { color: var(--text); font-family: var(--display); font-size: 1.15rem; margin-right: 4px; }
.community { display: grid; grid-template-columns: minmax(0, 1fr) 360px; gap: 32px; align-items: start; }
.community aside .panel + .panel { margin-top: 18px; }
.q-list { display: grid; gap: 8px; }
.q-row { display: grid; grid-template-columns: 58px 58px minmax(0, 1fr); gap: 12px; align-items: center; padding: 12px 14px; background: var(--bg-3); border: 1px solid var(--line); border-radius: 12px; color: var(--text); }
.q-row:hover { border-color: rgba(245, 158, 11, 0.45); text-decoration: none; }
.q-row__stats { display: grid; justify-items: center; line-height: 1.1; border-radius: 9px; padding: 6px 0; color: var(--muted); }
.q-row__stats b { color: var(--text); font-size: 1.05rem; }
.q-row__stats small { font-size: 0.7rem; }
.q-row__stats.is-answered { background: rgba(52, 211, 153, 0.1); border: 1px solid rgba(52, 211, 153, 0.35); }
.q-row__stats.is-answered b { color: var(--green); }
.q-row__main { display: grid; gap: 6px; min-width: 0; }
.q-row__main strong { font-weight: 600; overflow-wrap: anywhere; }
.q-row__meta { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; color: var(--muted); font-size: 0.8rem; }
.q-filters { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; margin-bottom: 16px; }
.q-filters select { width: auto; min-width: 180px; }
.q-filters .tabs { margin: 0; }
.pager { display: flex; justify-content: space-between; align-items: center; margin-top: 18px; }

/* Threads */
.thread { display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: 36px; align-items: start; }
.post { display: grid; grid-template-columns: 52px minmax(0, 1fr); gap: 14px; padding: 18px 0; border-bottom: 1px solid var(--line); }
.post--accepted { border-left: 3px solid var(--green); padding-left: 12px; }
.post__body { min-width: 0; }
.post__by { display: flex; align-items: center; gap: 8px; color: var(--muted); font-size: 0.85rem; margin-top: 12px; }
.vote { display: grid; justify-items: center; gap: 4px; }
.vote button { width: 38px; height: 34px; border-radius: 9px; border: 1px solid var(--line-2); background: var(--bg-2); color: var(--muted); cursor: pointer; font-size: 0.9rem; }
.vote button:hover { border-color: var(--amber); color: var(--amber); }
.vote.is-voted button { background: rgba(245, 158, 11, 0.15); border-color: var(--amber); color: var(--amber); cursor: default; }
.vote b { font-family: var(--display); }
.avatar { display: inline-grid; place-items: center; width: 26px; height: 26px; border-radius: 50%; font-size: 0.7rem; font-weight: 700; color: #0b1016; background: hsl(var(--h), 70%, 62%); }
#answer { margin-top: 26px; }

/* GPIO calculator */
.gpio-calc.is-err input { border-color: var(--red); }
.gpio-selects { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.gpio-out { display: grid; gap: 8px; margin-top: 8px; }
.gpio-out div { display: grid; grid-template-columns: 130px minmax(0, 1fr); gap: 12px; align-items: center; padding: 10px 12px; background: var(--bg-code); border: 1px solid var(--line); border-radius: 10px; }
.gpio-out span { color: var(--muted); font-size: 0.82rem; text-transform: uppercase; letter-spacing: .4px; }
.gpio-out code { font-family: var(--mono); color: #F3D9A4; font-size: 0.9rem; overflow-wrap: anywhere; }
.gpio-banks { display: grid; grid-template-columns: repeat(auto-fill, minmax(330px, 1fr)); gap: 16px; }
.gpio-bank h3 { font-family: var(--display); margin-bottom: 8px; }
.gpio-bank h3 small { color: var(--muted); font-family: var(--mono); font-weight: 400; font-size: 0.8rem; margin-left: 6px; }
.gpio-table th, .gpio-table td { text-align: center; padding: 6px 4px; font-family: var(--mono); font-size: 0.82rem; }
.gpio-table tbody th { color: var(--amber); }

/* Cheatsheet */
.cheats { display: grid; grid-template-columns: repeat(auto-fill, minmax(420px, 1fr)); gap: 18px; max-width: none; }
.cheats > * + * { margin-top: 0; }
.cheat { background: var(--bg-3); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px 20px; scroll-margin-top: 90px; }
.cheat h2 { margin-top: 0; padding-top: 0; font-size: 1.2rem; }
.cheat h3 { font-size: 0.85rem; color: var(--muted); text-transform: uppercase; letter-spacing: .4px; margin-top: 14px; }
.cheat pre { margin-top: 6px; }

@media (max-width: 1080px) {
  .community, .thread { grid-template-columns: 1fr; }
}
@media (max-width: 860px) {
  .grid-2--even { grid-template-columns: 1fr; }
  .vs { grid-template-columns: 1fr; }
  .vs__x { justify-self: center; }
  .q-row { grid-template-columns: 48px 48px minmax(0, 1fr); gap: 8px; }
  .cheats { grid-template-columns: 1fr; }
  .gpio-out div { grid-template-columns: 1fr; gap: 4px; }
  .gpio-banks { grid-template-columns: 1fr; }
}

/* Accounts */
.nav__account { color: var(--text-2); font-size: 0.9rem; font-weight: 500; padding: 7px 12px; border-radius: 9px; border: 1px solid var(--line); white-space: nowrap; max-width: 160px; overflow: hidden; text-overflow: ellipsis; }
.nav__account:hover { border-color: var(--amber); color: var(--amber); text-decoration: none; }
.nav__account.is-user { border-color: rgba(245, 158, 11, 0.35); color: var(--amber); }
.auth { display: grid; grid-template-columns: minmax(0, 460px) minmax(0, 1fr); gap: 40px; align-items: start; justify-content: center; }
.auth__card .page-title { font-size: 1.8rem; }
.auth__side { padding-top: 24px; }
.auth__side h3 { font-family: var(--display); margin-bottom: 12px; }
.otp { font-family: var(--mono); font-size: 1.6rem; letter-spacing: 10px; text-align: center; }
.form--inline-link { margin-top: 10px; }
@media (max-width: 860px) {
  .auth { grid-template-columns: 1fr; }
  .nav__account { padding: 6px 9px; font-size: 0.85rem; }
}

[hidden] { display: none !important; }

/* =========================================================================
   Community shell: focused forum layout (no portal chrome)
   ========================================================================= */
html[data-chrome="community"] .bg-grid { opacity: .5; }
.cm-top { position: sticky; top: 0; z-index: 60; background: rgba(11, 16, 22, 0.9); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); border-bottom: 1px solid var(--line); }
.cm-top__inner { max-width: 1320px; margin: 0 auto; padding: 10px 20px; display: flex; align-items: center; gap: 18px; }
.cm-top__tag { font-family: 'Inter', sans-serif; font-size: 0.72rem; font-weight: 600; text-transform: uppercase; letter-spacing: .6px; color: var(--amber); background: rgba(245, 158, 11, 0.1); border: 1px solid rgba(245, 158, 11, 0.3); padding: 2px 8px; border-radius: 999px; margin-left: 6px; vertical-align: middle; }
.cm-search { flex: 1; max-width: 560px; margin: 0 auto; display: flex; align-items: center; gap: 8px; background: var(--bg-2); border: 1px solid var(--line-2); border-radius: 10px; padding: 0 12px; }
.cm-search:focus-within { border-color: var(--amber); }
.cm-search .ico { color: var(--muted); }
.cm-search input { border: none; background: none; padding: 9px 0; box-shadow: none !important; }
.cm-toggle { display: none; }

.cm-main { min-height: calc(100vh - 140px); }
.cm-shell { max-width: 1320px; margin: 0 auto; padding: 24px 20px 40px; display: grid; grid-template-columns: 220px minmax(0, 1fr) 300px; gap: 28px; align-items: start; }
.cm-shell--wide { grid-template-columns: 220px minmax(0, 1fr); }
.cm-content { min-width: 0; }

/* Left nav */
.cm-side { position: sticky; top: 78px; display: grid; gap: 22px; max-height: calc(100vh - 100px); overflow-y: auto; padding-right: 4px; }
.cm-side__group { display: grid; gap: 2px; }
.cm-side__group h4 { font-size: 0.72rem; text-transform: uppercase; letter-spacing: .8px; color: var(--muted); margin: 0 0 8px 10px; }
.cm-side a:not(.cm-tag) { display: flex; align-items: center; gap: 10px; padding: 8px 10px; border-radius: 9px; color: var(--text-2); font-size: 0.93rem; font-weight: 500; }
.cm-side a:not(.cm-tag):hover { background: rgba(230, 237, 243, 0.05); color: var(--text); text-decoration: none; }
.cm-side a.is-active { background: rgba(245, 158, 11, 0.12); color: var(--amber); }
.cm-side a em { margin-left: auto; font-style: normal; font-size: 0.75rem; background: rgba(248, 113, 113, 0.15); color: #FCA5A5; padding: 1px 7px; border-radius: 999px; }
.cm-side__muted a:not(.cm-tag) { font-size: 0.88rem; color: var(--muted); }
.cm-tags { display: flex; flex-wrap: wrap; gap: 6px; padding: 0 4px; }
.cm-tag { display: inline-flex; align-items: center; gap: 4px; font-family: var(--mono); font-size: 0.76rem; padding: 3px 8px; border-radius: 6px; background: rgba(34, 211, 238, 0.07); border: 1px solid rgba(34, 211, 238, 0.22); color: var(--cyan); }
.cm-tag:hover { border-color: var(--cyan); text-decoration: none; }
.cm-tag.is-active { background: rgba(245, 158, 11, 0.14); border-color: var(--amber); color: var(--amber); }
.cm-tag small { color: var(--muted); font-size: 0.7rem; }
.cm-tag--plain { background: var(--bg-3); border-color: var(--line-2); color: var(--text-2); font-family: inherit; }

/* Headings, tabs */
.cm-h1 { font-family: var(--display); font-size: 1.55rem; letter-spacing: -0.4px; display: flex; align-items: center; gap: 10px; }
.cm-h2 { font-family: var(--display); font-size: 1.2rem; margin: 26px 0 8px; }
.cm-title { font-family: var(--display); font-size: clamp(1.4rem, 3vw, 1.9rem); line-height: 1.2; letter-spacing: -0.4px; margin: 6px 0 10px; }
.cm-sub { color: var(--muted); margin: 4px 0 14px; }
.cm-head { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; }
.cm-back { font-size: 0.85rem; color: var(--muted); }
.cm-tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--line); margin: 14px 0 0; overflow-x: auto; }
.cm-tabs a { padding: 10px 14px; font-size: 0.9rem; font-weight: 500; color: var(--muted); border-bottom: 2px solid transparent; margin-bottom: -1px; white-space: nowrap; }
.cm-tabs a:hover { color: var(--text); text-decoration: none; }
.cm-tabs a.is-active { color: var(--amber); border-bottom-color: var(--amber); }
.cm-hello { display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap; padding: 18px 20px; border-radius: 14px; border: 1px solid rgba(245, 158, 11, 0.28); background: radial-gradient(ellipse 60% 120% at 100% 0%, rgba(245, 158, 11, 0.13), transparent 60%), var(--bg-2); }
.cm-hello h1 { font-family: var(--display); font-size: 1.35rem; }
.cm-hello p { color: var(--text-2); font-size: 0.93rem; }

/* Feed */
.cm-feed { display: grid; }
.cm-item { display: grid; grid-template-columns: 96px minmax(0, 1fr); gap: 16px; padding: 16px 4px; border-bottom: 1px solid var(--line); }
.cm-item__stats { display: grid; gap: 4px; justify-items: end; font-size: 0.78rem; color: var(--muted); padding-top: 2px; }
.cm-item__stats b { color: var(--text-2); font-weight: 600; }
.cm-item__stats .is-answered { color: var(--green); border: 1px solid rgba(52, 211, 153, 0.4); border-radius: 6px; padding: 1px 6px; }
.cm-item__stats .is-answered b { color: var(--green); }
.cm-item__main { min-width: 0; }
.cm-item h2 { font-size: 1.04rem; font-weight: 600; line-height: 1.35; margin-bottom: 4px; }
.cm-item h2 a { color: var(--text); }
.cm-item h2 a:hover { color: var(--amber); text-decoration: none; }
.cm-item p { color: var(--muted); font-size: 0.9rem; overflow-wrap: anywhere; }
.cm-item__meta { display: flex; flex-wrap: wrap; gap: 6px 10px; align-items: center; margin-top: 8px; font-size: 0.8rem; color: var(--muted); }
.cm-item__by { display: inline-flex; align-items: center; gap: 6px; margin-left: auto; }
.cm-item__by .avatar { width: 20px; height: 20px; font-size: 0.6rem; }
.cm-thread-meta { margin: 0 0 8px; }
.cm-more { display: inline-block; margin-top: 14px; font-weight: 600; color: var(--amber); }
.cm-empty { text-align: center; padding: 30px 16px; border: 1px dashed var(--line-2); border-radius: 12px; margin-top: 16px; }
.cm-empty p { color: var(--muted); margin-bottom: 12px; }
.cm-empty .btn + .btn { margin-left: 6px; }
.cm-contrib { margin-top: 30px; border: 1px solid var(--line); border-radius: 12px; padding: 0 16px; background: var(--bg-2); }
.cm-contrib summary { cursor: pointer; padding: 12px 0; color: var(--text-2); font-size: 0.92rem; }
.cm-contrib[open] { padding-bottom: 14px; }

/* Thread */
.post--q { border-bottom: none; }
.cm-answer { margin-top: 10px; }
.cm-answer__bar { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; }
.cm-form { margin-top: 10px; }

/* Right rail */
.cm-rail { position: sticky; top: 78px; display: grid; gap: 14px; }
.cm-card { background: var(--bg-2); border: 1px solid var(--line); border-radius: 12px; padding: 16px; }
.cm-card h3 { font-family: var(--display); font-size: 0.98rem; margin-bottom: 8px; }
.cm-card h3 small { color: var(--muted); font-family: inherit; font-weight: 400; font-size: 0.75rem; }
.cm-card p { color: var(--muted); font-size: 0.88rem; margin-bottom: 12px; }
.cm-card--cta { border-color: rgba(245, 158, 11, 0.35); background: linear-gradient(160deg, rgba(245, 158, 11, 0.1), var(--bg-2) 60%); }
.cm-card--quiet { background: transparent; }
.cm-link { display: inline-block; margin-left: 10px; font-size: 0.88rem; }
.cm-stats { display: grid; grid-template-columns: repeat(3, 1fr); text-align: center; padding: 12px 8px; }
.cm-stats b { display: block; font-family: var(--display); font-size: 1.25rem; }
.cm-stats span { color: var(--muted); font-size: 0.72rem; text-transform: uppercase; letter-spacing: .4px; }
.cm-people { list-style: none; display: grid; gap: 8px; }
.cm-people li { display: flex; align-items: center; gap: 8px; font-size: 0.9rem; }
.cm-people small { margin-left: auto; color: var(--muted); font-size: 0.78rem; }
.cm-list { list-style: none; display: grid; gap: 7px; font-size: 0.88rem; }
.cm-tips { padding-left: 1.1em; color: var(--muted); font-size: 0.85rem; display: grid; gap: 4px; }

/* Community footer & auth */
.cm-foot { border-top: 1px solid var(--line); padding: 18px 20px; display: flex; flex-wrap: wrap; gap: 8px 20px; justify-content: center; color: var(--muted); font-size: 0.82rem; }
.cm-foot a { color: var(--muted); }
.cm-foot a:hover { color: var(--amber); }
.cm-foot__disc { width: 100%; text-align: center; color: #5f6b7b; }
.cm-auth { max-width: 1000px; margin: 0 auto; padding: 48px 20px; }

@media (max-width: 1180px) {
  .cm-shell { grid-template-columns: 200px minmax(0, 1fr); }
  .cm-rail { display: none; }
}
@media (max-width: 860px) {
  .cm-top__inner { gap: 10px; padding: 8px 14px; }
  .cm-top__tag { display: none; }
  .cm-toggle { display: grid; }
  .cm-shell { grid-template-columns: 1fr; padding: 16px 14px 32px; gap: 0; }
  .cm-side { position: fixed; top: 56px; left: 0; bottom: 0; width: 260px; max-height: none; z-index: 55; background: var(--bg); border-right: 1px solid var(--line); padding: 16px 12px; transform: translateX(-102%); transition: transform .2s; }
  .cm-side.is-open { transform: none; }
  .cm-item { grid-template-columns: 1fr; gap: 6px; }
  .cm-item__stats { display: flex; gap: 12px; justify-items: start; order: 2; }
  .cm-item__by { margin-left: 0; }
  .brand__name { font-size: 1rem; }
}

/* =========================================================================
   Animated chip hero, latest ticker, scroll reveal
   ========================================================================= */
.hero--anim { position: relative; overflow: hidden; padding-top: 96px; padding-bottom: 72px; }
.hero--anim::before { display: none; }
.hero--anim .hero__inner { position: relative; z-index: 2; }
.hero-art { position: absolute; inset: 0; width: 100%; height: 100%; z-index: 0; pointer-events: none;
  mask-image: radial-gradient(ellipse 85% 90% at 50% 45%, #000 45%, transparent 95%);
  -webkit-mask-image: radial-gradient(ellipse 85% 90% at 50% 45%, #000 45%, transparent 95%); }
.hero--anim::after { content: ''; position: absolute; inset: 0; z-index: 1; pointer-events: none;
  background: radial-gradient(ellipse 40% 34% at 50% 50%, rgba(11, 16, 22, 0.62), rgba(11, 16, 22, 0.25) 70%, transparent 100%); }
.hero-art__glow { animation: hx-breathe 5s ease-in-out infinite; transform-origin: 600px 300px; }
@keyframes hx-breathe { 0%, 100% { opacity: .55; transform: scale(.96); } 50% { opacity: 1; transform: scale(1.04); } }
.hero-art__traces path { fill: none; stroke: rgba(245, 158, 11, 0.28); stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.hero-art__ics > g > rect { fill: #111a24; stroke: rgba(34, 211, 238, 0.45); stroke-width: 1.5; }
.hero-art__icpins rect { fill: rgba(34, 211, 238, 0.45); }
.hero-art__ics circle { fill: rgba(34, 211, 238, 0.7); }
.hero-art__ics > g { animation: hx-ic 4s ease-in-out infinite; }
.hero-art__ics > g:nth-child(2n) { animation-delay: -1.3s; }
.hero-art__ics > g:nth-child(3n) { animation-delay: -2.6s; }
@keyframes hx-ic { 0%, 100% { opacity: .55; } 50% { opacity: 1; } }
.hero-art__electrons circle { fill: #FDE68A; filter: drop-shadow(0 0 5px rgba(251, 191, 36, 0.95)) drop-shadow(0 0 10px rgba(245, 158, 11, 0.7)); }
.hero-art__electrons circle:nth-child(4n) { fill: #67E8F9; filter: drop-shadow(0 0 6px rgba(34, 211, 238, 0.9)); }
.hero-art__socpins rect { fill: #F59E0B; opacity: .8; }
.hero-art__soc { filter: drop-shadow(0 0 30px rgba(245, 158, 11, 0.55)); animation: hx-soc 3.2s ease-in-out infinite; }
@keyframes hx-soc { 0%, 100% { opacity: .75; } 50% { opacity: 1; } }
.hero-art__label { font-family: 'Space Grotesk', sans-serif; font-weight: 700; font-size: 44px; fill: #F59E0B; letter-spacing: 2px; }
.hero-art__sub { font-family: 'JetBrains Mono', monospace; font-size: 14px; fill: #8B98A9; letter-spacing: 4px; }

.ticker { display: flex; align-items: center; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: rgba(15, 21, 29, 0.85); overflow: hidden; }
.ticker__label { flex-shrink: 0; display: inline-flex; align-items: center; gap: 6px; padding: 10px 16px; font-size: 0.78rem; font-weight: 700; letter-spacing: .6px; text-transform: uppercase; color: #1a1204; background: linear-gradient(110deg, var(--amber-2), var(--amber)); }
.ticker__viewport { overflow: hidden; flex: 1; mask-image: linear-gradient(90deg, transparent, #000 4%, #000 96%, transparent); -webkit-mask-image: linear-gradient(90deg, transparent, #000 4%, #000 96%, transparent); }
.ticker__track { display: inline-flex; align-items: center; gap: 18px; white-space: nowrap; padding: 10px 0; animation: ticker 70s linear infinite; }
.ticker:hover .ticker__track, .ticker:focus-within .ticker__track { animation-play-state: paused; }
.ticker__track a { color: var(--text-2); font-size: 0.9rem; }
.ticker__track a:hover { color: var(--amber); text-decoration: none; }
.ticker__track a b { color: var(--cyan); font-weight: 600; font-size: 0.72rem; text-transform: uppercase; letter-spacing: .5px; margin-right: 8px; }
.ticker__dot { color: rgba(245, 158, 11, 0.55); font-size: 0.6rem; }
@keyframes ticker { from { transform: translateX(0); } to { transform: translateX(-50%); } }

.reveal--ready { opacity: 0; transform: translateY(18px); transition: opacity .6s ease, transform .6s ease; }
.reveal--ready.is-in { opacity: 1; transform: none; }

/* Language switcher */
.lang { position: relative; }
.lang summary { list-style: none; cursor: pointer; display: inline-flex; align-items: center; gap: 6px; height: 36px; padding: 0 10px; border-radius: 9px; border: 1px solid var(--line); color: var(--text-2); font-size: 0.85rem; font-weight: 500; }
.lang summary::-webkit-details-marker { display: none; }
.lang summary:hover, .lang[open] summary { border-color: var(--amber); color: var(--amber); }
.lang__menu { position: absolute; right: 0; top: calc(100% + 6px); z-index: 80; min-width: 150px; background: var(--bg-2); border: 1px solid var(--line-2); border-radius: 10px; box-shadow: var(--shadow); padding: 6px; display: grid; }
.lang__menu a { padding: 8px 10px; border-radius: 7px; color: var(--text-2); font-size: 0.9rem; }
.lang__menu a:hover { background: rgba(245, 158, 11, 0.1); color: var(--amber); text-decoration: none; }
.lang__menu a[aria-current] { color: var(--amber); font-weight: 600; }

/* Experts */
.expert-cta { display: grid; grid-template-columns: auto minmax(0, 1fr) auto; gap: 24px; align-items: center; padding: 28px 30px; border-radius: 18px;
  background: radial-gradient(ellipse 50% 140% at 0% 50%, rgba(34, 211, 238, 0.12), transparent 60%), linear-gradient(135deg, #131b26, #0F151D); border: 1px solid rgba(34, 211, 238, 0.28); }
.expert-cta__art { width: 76px; height: 76px; display: grid; place-items: center; border-radius: 20px; color: var(--cyan); background: rgba(34, 211, 238, 0.1); border: 1px solid rgba(34, 211, 238, 0.35); }
.expert-cta h2 { font-family: var(--display); font-size: clamp(1.25rem, 2.6vw, 1.6rem); margin: 8px 0 6px; }
.expert-cta p { color: var(--text-2); max-width: 640px; }
.hero--experts::before { background: radial-gradient(closest-side, rgba(34, 211, 238, 0.14), rgba(245, 158, 11, 0.05) 55%, transparent 75%); }
.steps--v { grid-template-columns: 1fr; margin-bottom: 20px; }
.expert-form h2 { font-family: var(--display); font-size: 1.35rem; margin-bottom: 6px; }
.form__section { font-size: 0.78rem; text-transform: uppercase; letter-spacing: .8px; color: var(--amber); margin: 22px 0 12px; padding-top: 14px; border-top: 1px solid var(--line); }
.checks-grid--socs { grid-template-columns: repeat(4, 1fr); }
.consent { margin: 8px 0 16px; align-items: flex-start !important; }
.cm-card--expert { border-color: rgba(34, 211, 238, 0.3); background: linear-gradient(160deg, rgba(34, 211, 238, 0.08), var(--bg-2) 60%); }

@media (max-width: 860px) {
  .hero--anim { padding-top: 56px; padding-bottom: 40px; }
  .expert-cta { grid-template-columns: 1fr; text-align: left; }
  .checks-grid--socs { grid-template-columns: 1fr 1fr; }
  .lang summary span { display: none; }
}
@media (prefers-reduced-motion: reduce) {
  .hero-art__electrons { display: none; }
  .hero-art__glow, .hero-art__ics > g, .ticker__track { animation: none; }
  .reveal--ready { opacity: 1; transform: none; }
}
/* Username live check (sign-up) */
.uname__box { display: flex; align-items: center; background: var(--bg-code); border: 1px solid var(--line-2); border-radius: 10px; padding: 0 10px 0 12px; transition: border-color .2s, box-shadow .2s; }
.uname__box:focus-within { border-color: var(--amber); box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.15); }
.uname__box input { border: none; background: none; box-shadow: none !important; padding-left: 4px; }
.uname__at { color: var(--muted); font-family: var(--mono); }
.uname__icon { width: 18px; height: 18px; flex-shrink: 0; border-radius: 50%; display: grid; place-items: center; font-size: 0.72rem; font-weight: 700; }
.uname__msg { font-size: 0.8rem; color: var(--muted); margin-top: 2px; min-height: 1.2em; }
.uname[data-state="checking"] .uname__icon { border: 2px solid rgba(245, 158, 11, 0.3); border-top-color: var(--amber); animation: spin .7s linear infinite; }
.uname[data-state="ok"] .uname__box { border-color: rgba(52, 211, 153, 0.6); }
.uname[data-state="ok"] .uname__icon::before { content: '✓'; }
.uname[data-state="ok"] .uname__icon { background: rgba(52, 211, 153, 0.18); color: var(--green); }
.uname[data-state="ok"] .uname__msg { color: var(--green); }
.uname[data-state="bad"] .uname__box { border-color: rgba(248, 113, 113, 0.65); }
.uname[data-state="bad"] .uname__icon::before { content: '✕'; }
.uname[data-state="bad"] .uname__icon { background: rgba(248, 113, 113, 0.16); color: var(--red); }
.uname[data-state="bad"] .uname__msg { color: var(--red); }
.uname__sugg { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; margin-top: 6px; font-size: 0.8rem; color: var(--muted); }
.uname__sugg .chip { cursor: pointer; font-family: var(--mono); font-size: 0.8rem; padding: 4px 10px; }
@keyframes spin { to { transform: rotate(360deg); } }