/* =========================================================================
   JavaScript Web Workers — design system
   Warm editorial-technical palette (mustard / olive / pumpkin / golden-brown)
   with a first-class dark theme. All SVG diagrams theme themselves through the
   --svg-* tokens so they adapt to light/dark automatically.
   ========================================================================= */

:root {
  color-scheme: light dark;

  /* Brand palette (constant across themes) */
  --mustard: #d8a822;
  --olive: #6b7d2a;
  --pumpkin: #c96a22;
  --gold-brown: #8f5a21;

  /* ---- Light theme (default) ---- */
  --bg: #fffdf7;
  --bg-grad-1: #fffdf7;
  --bg-grad-2: #fff5e3;
  --surface: #fff9ed;
  --surface-2: #fdf3da;
  --surface-raised: #ffffff;
  --text: #2f2416;
  --text-strong: #241a0d;
  --muted: #6f5c40;
  --border: rgba(143, 90, 33, 0.20);
  --border-strong: rgba(143, 90, 33, 0.34);
  --link: #a8571a;
  --link-hover: #c96a22;
  --ring: #e8b53e;
  --shadow-sm: 0 6px 16px rgba(109, 82, 24, 0.10);
  --shadow: 0 12px 28px rgba(109, 82, 24, 0.14);
  --shadow-lg: 0 24px 56px rgba(109, 82, 24, 0.18);

  --code-bg: #fdf6e6;
  --code-border: rgba(143, 90, 33, 0.26);
  --code-ink: #3a2c19;

  /* Accent tints for chips / callouts */
  --tint-mustard: rgba(216, 168, 34, 0.16);
  --tint-olive: rgba(107, 125, 42, 0.16);
  --tint-pumpkin: rgba(201, 106, 34, 0.14);
  --tint-brown: rgba(143, 90, 33, 0.12);

  /* SVG diagram tokens (used by authored inline diagrams) */
  --svg-ink: #3a2c19;
  --svg-muted: #6f5c40;
  --svg-line: #b9966a;
  --svg-surface: #fff9ed;
  --svg-surface-2: #f6e7c4;
  --svg-mustard: #d8a822;
  --svg-olive: #6b7d2a;
  --svg-pumpkin: #c96a22;
  --svg-brown: #8f5a21;

  --header-height: 68px;
  --radius: 16px;
  --radius-sm: 10px;
  --maxw: 1200px;
  --prose: 74ch;
  --font-sans: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-mono: ui-monospace, "SFMono-Regular", Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
}

[data-theme="dark"] {
  --bg: #18130c;
  --bg-grad-1: #18130c;
  --bg-grad-2: #1f1810;
  --surface: #211a10;
  --surface-2: #2a2114;
  --surface-raised: #271f13;
  --text: #ece2cf;
  --text-strong: #fbf3e1;
  --muted: #b8a47f;
  --border: rgba(232, 181, 62, 0.18);
  --border-strong: rgba(232, 181, 62, 0.32);
  --link: #f0c04a;
  --link-hover: #f6d680;
  --ring: #f0c04a;
  --shadow-sm: 0 6px 16px rgba(0, 0, 0, 0.45);
  --shadow: 0 16px 34px rgba(0, 0, 0, 0.55);
  --shadow-lg: 0 28px 60px rgba(0, 0, 0, 0.6);

  --code-bg: #15100a;
  --code-border: rgba(232, 181, 62, 0.22);
  --code-ink: #ece2cf;

  --tint-mustard: rgba(216, 168, 34, 0.18);
  --tint-olive: rgba(141, 166, 60, 0.20);
  --tint-pumpkin: rgba(224, 132, 70, 0.18);
  --tint-brown: rgba(216, 168, 34, 0.10);

  --svg-ink: #ece2cf;
  --svg-muted: #b8a47f;
  --svg-line: #7d6845;
  --svg-surface: #211a10;
  --svg-surface-2: #2d2415;
  --svg-mustard: #e8b53e;
  --svg-olive: #a6c052;
  --svg-pumpkin: #e0844a;
  --svg-brown: #cf9a4a;
}

/* Respect OS preference when the user has not chosen explicitly. The toggle in
   site.js sets data-theme on <html> to override. */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #18130c; --bg-grad-1: #18130c; --bg-grad-2: #1f1810;
    --surface: #211a10; --surface-2: #2a2114; --surface-raised: #271f13;
    --text: #ece2cf; --text-strong: #fbf3e1; --muted: #b8a47f;
    --border: rgba(232, 181, 62, 0.18); --border-strong: rgba(232, 181, 62, 0.32);
    --link: #f0c04a; --link-hover: #f6d680; --ring: #f0c04a;
    --shadow-sm: 0 6px 16px rgba(0,0,0,0.45); --shadow: 0 16px 34px rgba(0,0,0,0.55); --shadow-lg: 0 28px 60px rgba(0,0,0,0.6);
    --code-bg: #15100a; --code-border: rgba(232,181,62,0.22); --code-ink: #ece2cf;
    --tint-mustard: rgba(216,168,34,0.18); --tint-olive: rgba(141,166,60,0.20); --tint-pumpkin: rgba(224,132,70,0.18); --tint-brown: rgba(216,168,34,0.10);
    --svg-ink: #ece2cf; --svg-muted: #b8a47f; --svg-line: #7d6845;
    --svg-surface: #211a10; --svg-surface-2: #2d2415;
    --svg-mustard: #e8b53e; --svg-olive: #a6c052; --svg-pumpkin: #e0844a; --svg-brown: #cf9a4a;
  }
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
}

body {
  margin: 0;
  font-family: var(--font-sans);
  background:
    radial-gradient(1200px 600px at 100% -5%, var(--tint-mustard), transparent 60%),
    linear-gradient(180deg, var(--bg-grad-1) 0%, var(--bg-grad-2) 50%, var(--bg-grad-1) 100%);
  background-attachment: fixed;
  color: var(--text);
  line-height: 1.7;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  font-size: 1rem;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a {
  color: var(--link);
  text-decoration-color: color-mix(in srgb, var(--link) 50%, transparent);
  text-decoration-thickness: 2px;
  text-underline-offset: 0.18em;
  transition: color 160ms ease, text-decoration-color 160ms ease;
}
a:hover, a:focus-visible { color: var(--link-hover); text-decoration-color: var(--olive); }

:focus-visible { outline: 3px solid var(--ring); outline-offset: 2px; border-radius: 4px; }

.container { width: min(var(--maxw), 100% - 2rem); margin-inline: auto; }

.skip-link {
  position: absolute; left: 0.5rem; top: -3rem; z-index: 100;
  background: var(--pumpkin); color: #fff; padding: 0.5rem 0.9rem;
  border-radius: 8px; font-weight: 700; text-decoration: none;
  transition: top 140ms ease;
}
.skip-link:focus { top: 0.5rem; }

/* ---------------------------------------------------------------- header */
.site-header {
  position: sticky; top: 0; z-index: 30;
  min-height: var(--header-height);
  backdrop-filter: saturate(1.4) blur(10px);
  background: color-mix(in srgb, var(--surface) 86%, transparent);
  border-bottom: 1px solid var(--border);
}

.nav-shell { display: flex; gap: 1rem; align-items: center; justify-content: space-between; padding: 0.7rem 0; }

.brand { display: inline-flex; gap: 0.6rem; align-items: center; font-weight: 800; color: var(--text-strong); text-decoration: none; letter-spacing: -0.01em; }
.brand img { border-radius: 9px; }
.brand span { white-space: nowrap; }

.nav-cluster { display: flex; gap: 0.3rem; align-items: center; flex-wrap: wrap; justify-content: flex-end; }
.site-header nav { display: flex; gap: 0.25rem; flex-wrap: wrap; justify-content: flex-end; }
.site-header nav a {
  text-decoration: none; color: var(--text); border-radius: 999px;
  padding: 0.42rem 0.78rem; font-weight: 600; font-size: 0.95rem; white-space: nowrap;
  border: 1px solid transparent;
}
.site-header nav a:hover, .site-header nav a:focus-visible { background: var(--tint-pumpkin); }
.site-header nav a[aria-current="page"] { background: var(--tint-mustard); border-color: var(--border); }

.theme-toggle {
  display: inline-grid; place-items: center;
  width: 40px; height: 40px; border-radius: 999px;
  border: 1px solid var(--border-strong); background: var(--surface-raised);
  color: var(--text); cursor: pointer; font-size: 1.05rem; line-height: 1;
}
.theme-toggle:hover { background: var(--tint-mustard); }
/* No motion in the header */
.site-header a, .site-header .brand, .theme-toggle { transition: none; }
.theme-toggle .icon-sun { display: none; }
.theme-toggle .icon-moon { display: block; }
[data-theme="dark"] .theme-toggle .icon-sun { display: block; }
[data-theme="dark"] .theme-toggle .icon-moon { display: none; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .theme-toggle .icon-sun { display: block; }
  :root:not([data-theme="light"]) .theme-toggle .icon-moon { display: none; }
}

.site-main { flex: 1; padding: 2rem 0 3.5rem; }

/* ---------------------------------------------------------------- hero */
.hero {
  position: relative; overflow: hidden;
  padding: clamp(1.6rem, 4vw, 3rem);
  border-radius: calc(var(--radius) + 6px);
  background:
    radial-gradient(120% 120% at 0% 0%, color-mix(in srgb, var(--mustard) 28%, var(--surface)) 0%, var(--surface) 55%, var(--surface) 100%);
  border: 1px solid var(--border-strong);
  box-shadow: var(--shadow);
}
.hero::after {
  content: ""; position: absolute; inset: auto -20% -60% auto; width: 60%; height: 160%;
  background: radial-gradient(closest-side, var(--tint-olive), transparent 70%);
  pointer-events: none;
}
.hero__content { position: relative; max-width: 60ch; }
.eyebrow {
  display: inline-block; color: var(--olive); text-transform: uppercase;
  letter-spacing: 0.08em; font-weight: 800; font-size: 0.8rem; margin: 0 0 0.4rem;
}
.hero p { color: var(--text); font-size: 1.05rem; }

h1, h2, h3, h4 { line-height: 1.22; scroll-margin-top: calc(var(--header-height) + 1.2rem); color: var(--text-strong); }
h1 { font-size: clamp(2rem, 4.4vw, 3rem); margin: 0.2rem 0 1rem; letter-spacing: -0.02em; }

.hero__actions { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 0.7rem; margin-top: 1.6rem; }
.cta {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem;
  border-radius: 999px; padding: 0.8rem 1.1rem; text-decoration: none; font-weight: 800;
  color: #241a0d; border: 1px solid rgba(0,0,0,0.12); box-shadow: var(--shadow-sm);
  transition: transform 140ms ease, box-shadow 140ms ease, filter 140ms ease;
}
.cta:hover, .cta:focus-visible { transform: translateY(-2px); box-shadow: var(--shadow); filter: brightness(1.02); color: #241a0d; }
.cta--mustard { background: linear-gradient(135deg, #f3d273, #e2b13f); }
.cta--olive { background: linear-gradient(135deg, #c2d585, #9db255); }
.cta--pumpkin { background: linear-gradient(135deg, #efb185, #e0844a); }

/* ---------------------------------------------------------------- cards */
.home-intro { margin: 2.4rem 0 0.6rem; }
.home-intro h2 { font-size: clamp(1.3rem, 2vw, 1.7rem); color: var(--olive); }
.section-eyebrow { color: var(--olive); text-transform: uppercase; letter-spacing: 0.08em; font-weight: 800; font-size: 0.78rem; }

.home-grid, .related-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 1.1rem; margin-top: 1.2rem; }

.card, .related-link {
  background: var(--surface); border-radius: var(--radius); border: 1px solid var(--border);
  padding: 1.2rem 1.2rem 1.25rem; box-shadow: var(--shadow-sm);
  transition: transform 150ms ease, box-shadow 150ms ease, border-color 150ms ease;
}
.card { position: relative; overflow: hidden; }
.card::before { content: ""; position: absolute; inset: 0 auto auto 0; width: 100%; height: 4px; background: linear-gradient(90deg, var(--mustard), var(--pumpkin)); opacity: 0.9; }
.card:hover, .card:focus-within { transform: translateY(-3px); box-shadow: var(--shadow); border-color: var(--border-strong); }
.card h2 { margin: 0.4rem 0 0.5rem; font-size: 1.2rem; color: var(--gold-brown); border: 0; padding: 0; }
.card h2 a { text-decoration: none; }
.card p { margin: 0; color: var(--muted); }
.card__icon { font-size: 1.6rem; }
.card__tags { margin-top: 0.8rem; display: flex; flex-wrap: wrap; gap: 0.35rem; }
.tag {
  font-size: 0.74rem; font-weight: 700; letter-spacing: 0.02em;
  color: var(--gold-brown); background: var(--tint-brown);
  border: 1px solid var(--border); border-radius: 999px; padding: 0.2rem 0.6rem;
}

.related-link { text-decoration: none; color: var(--text); display: flex; flex-direction: column; gap: 0.4rem; }
.related-link:hover, .related-link:focus-visible { transform: translateY(-2px); box-shadow: var(--shadow); border-color: var(--border-strong); }
.related-link__eyebrow {
  width: fit-content; font-size: 0.72rem; letter-spacing: 0.05em; text-transform: uppercase; font-weight: 800;
  color: var(--olive); background: var(--tint-olive); border: 1px solid var(--border); border-radius: 999px; padding: 0.24rem 0.66rem;
}
.related-link__title { color: var(--text-strong); font-size: 1.02rem; font-weight: 700; line-height: 1.35; }
.related-link__meta { margin-top: auto; color: var(--pumpkin); font-size: 0.88rem; font-weight: 700; }

/* ---------------------------------------------------------------- doc layout */
.breadcrumbs { margin-bottom: 1rem; font-size: 0.92rem; color: var(--muted); }
.breadcrumbs a { color: var(--muted); }
.breadcrumbs .sep { margin: 0 0.4rem; opacity: 0.7; }

.doc { display: grid; grid-template-columns: 1fr; gap: 1.6rem; align-items: start; }
@media (min-width: 1080px) {
  .doc { grid-template-columns: minmax(0, 1fr) 250px; }
  .doc__main { min-width: 0; order: 1; }
  .toc { order: 2; }
}

.toc {
  position: sticky; top: calc(var(--header-height) + 1rem);
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 1rem 1.1rem; box-shadow: var(--shadow-sm); font-size: 0.9rem;
}
.toc[hidden] { display: none; }
.toc__title { font-size: 0.74rem; text-transform: uppercase; letter-spacing: 0.08em; font-weight: 800; color: var(--olive); margin: 0 0 0.6rem; }
.toc ol { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 0.1rem; border-left: 2px solid var(--border); }
.toc a { display: block; padding: 0.28rem 0.6rem; color: var(--muted); text-decoration: none; border-left: 2px solid transparent; margin-left: -2px; border-radius: 0 6px 6px 0; }
.toc a:hover { color: var(--link-hover); background: var(--tint-mustard); }
.toc a.is-active { color: var(--text-strong); font-weight: 700; border-left-color: var(--pumpkin); background: var(--tint-pumpkin); }
@media (max-width: 1079px) { .toc { position: static; } }

/* ---------------------------------------------------------------- article */
.content-page {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: clamp(1.1rem, 2.4vw, 2.2rem);
  box-shadow: var(--shadow-sm);
}
.content-page > * { max-width: var(--prose); }
.content-page > h1, .content-page > .figure, .content-page > .table-scroll,
.content-page > pre, .content-page > .callout { max-width: none; }

.content-page > h1 {
  margin: 0 0 0.4rem; font-size: clamp(2rem, 3.4vw, 2.9rem); font-weight: 800; letter-spacing: -0.02em;
  background: linear-gradient(96deg, var(--pumpkin) 0%, var(--gold-brown) 48%, var(--olive) 100%);
  color: var(--pumpkin); line-height: 1.14;
}
@supports ((-webkit-background-clip: text) or (background-clip: text)) {
  .content-page > h1 { -webkit-background-clip: text; background-clip: text; color: transparent; }
}
.content-page > h1 + p { font-size: 1.12rem; color: var(--muted); }

.content-page h2 {
  margin-top: 2.2rem; margin-bottom: 0.7rem; font-size: clamp(1.35rem, 2vw, 1.7rem); font-weight: 800;
  color: var(--olive); padding-bottom: 0.3rem; border-bottom: 2px solid var(--border);
}
.content-page h3 { margin-top: 1.7rem; margin-bottom: 0.5rem; font-size: 1.2rem; color: var(--gold-brown); }
.content-page h4 { margin-top: 1.2rem; margin-bottom: 0.4rem; color: var(--pumpkin); }

.content-page p { margin: 0 0 1rem; color: var(--text); font-size: 1.02rem; line-height: 1.78; }
.content-page ul, .content-page ol { margin: 0 0 1.1rem; padding-left: 1.3rem; }
.content-page li { margin: 0.3rem 0; }
.content-page li::marker { color: var(--pumpkin); }

.content-page a { font-weight: 600; }

.content-page strong { color: var(--text-strong); }

.content-page hr { border: 0; height: 1px; background: var(--border-strong); margin: 2rem 0; }

.content-page blockquote {
  margin: 1.2rem 0; padding: 0.6rem 1rem; border-left: 4px solid var(--olive);
  background: var(--surface-2); border-radius: 0 var(--radius-sm) var(--radius-sm) 0; color: var(--muted);
}

/* headerLink anchors from markdown-it-anchor */
.content-page :is(h2, h3, h4) a { color: inherit; text-decoration: none; }
.content-page :is(h2, h3, h4) a:hover { text-decoration: underline; text-decoration-color: var(--ring); }

/* inline code — no box; blends into the prose with the mono font + a subtle accent */
.content-page :not(pre) > code {
  font-family: var(--font-mono); font-size: 0.9em;
  background: none; border: 0; padding: 0;
  color: var(--gold-brown); font-weight: 500; word-break: break-word;
}
.content-page a code { color: inherit; }
[data-theme="dark"] .content-page :not(pre) > code { color: var(--mustard); }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .content-page :not(pre) > code { color: var(--mustard); } }

/* ---------------------------------------------------------------- callouts */
.callout {
  display: grid; grid-template-columns: auto 1fr; gap: 0.7rem; align-items: start;
  margin: 1.3rem 0; padding: 0.9rem 1.1rem; border-radius: var(--radius-sm);
  border: 1px solid var(--border-strong); border-left-width: 5px; background: var(--surface-2);
}
.callout > .callout__icon { font-size: 1.15rem; line-height: 1.5; }
.callout p:last-child { margin-bottom: 0; }
.callout p:first-child { margin-top: 0; }
.callout__label { display: block; font-weight: 800; letter-spacing: 0.02em; margin-bottom: 0.2rem; font-size: 0.92rem; }
.callout--info { border-left-color: var(--olive); }
.callout--info .callout__label { color: var(--olive); }
.callout--perf { border-left-color: var(--mustard); }
.callout--perf .callout__label { color: var(--gold-brown); }
.callout--warn { border-left-color: var(--pumpkin); }
.callout--warn .callout__label { color: var(--pumpkin); }
.callout--security { border-left-color: var(--gold-brown); background: var(--tint-brown); }
.callout--security .callout__label { color: var(--gold-brown); }

/* ---------------------------------------------------------------- figures / SVG diagrams */
.figure {
  margin: 1.6rem 0; padding: 1.1rem; border-radius: var(--radius);
  border: 1px solid var(--border); background: var(--surface-2); box-shadow: var(--shadow-sm);
}
.figure svg { display: block; width: 100%; height: auto; }
.figure figcaption { margin-top: 0.7rem; font-size: 0.88rem; color: var(--muted); text-align: center; }
/* Keep page typography from leaking into diagram labels: diagrams set their own
   font-size on <text>; we only fix the family + reset weight. */
.content-page svg text, .figure svg text, .figure svg tspan { font-family: var(--font-sans); }

/* ---------------------------------------------------------------- code blocks */
.content-page pre {
  position: relative; overflow: auto; border-radius: 12px; margin: 1.3rem 0;
  background: var(--code-bg); color: var(--code-ink);
  border: 1px solid var(--code-border); box-shadow: inset 0 0 0 1px rgba(255,255,255,0.02);
}
.content-page pre code { display: block; padding: 1rem 1.05rem; font-size: 0.875rem; line-height: 1.6; }
.content-page code[class*="language-"], .content-page pre[class*="language-"] {
  color: var(--code-ink); text-shadow: none; font-family: var(--font-mono);
}

.content-page .token.comment, .content-page .token.prolog, .content-page .token.doctype, .content-page .token.cdata { color: color-mix(in srgb, var(--muted) 90%, transparent); font-style: italic; }
.content-page .token.punctuation, .content-page .token.operator { color: var(--muted); }
.content-page .token.keyword, .content-page .token.atrule, .content-page .token.important, .content-page .token.selector { color: var(--olive); font-weight: 700; }
.content-page .token.function, .content-page .token.class-name, .content-page .token.property, .content-page .token.tag, .content-page .token.attr-name { color: var(--gold-brown); }
.content-page .token.string, .content-page .token.char, .content-page .token.attr-value, .content-page .token.url, .content-page .token.inserted { color: var(--pumpkin); }
.content-page .token.number, .content-page .token.boolean, .content-page .token.constant, .content-page .token.symbol, .content-page .token.deleted { color: var(--mustard); }
[data-theme="dark"] .content-page .token.function, [data-theme="dark"] .content-page .token.class-name, [data-theme="dark"] .content-page .token.property, [data-theme="dark"] .content-page .token.tag, [data-theme="dark"] .content-page .token.attr-name { color: var(--svg-brown); }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .content-page .token.function,
  :root:not([data-theme="light"]) .content-page .token.class-name,
  :root:not([data-theme="light"]) .content-page .token.property,
  :root:not([data-theme="light"]) .content-page .token.tag,
  :root:not([data-theme="light"]) .content-page .token.attr-name { color: var(--svg-brown); }
}

.copy-btn {
  position: absolute; top: 0.55rem; right: 0.55rem; border: 1px solid var(--border-strong);
  border-radius: 8px; padding: 0.26rem 0.6rem; font-size: 0.74rem; font-weight: 800;
  background: var(--surface-raised); color: var(--text); cursor: pointer; opacity: 0; transition: opacity 140ms ease;
}
.content-page pre:hover .copy-btn, .copy-btn:focus-visible { opacity: 1; }
.copy-btn:hover, .copy-btn:focus-visible { outline: 2px solid var(--ring); }

/* ---------------------------------------------------------------- tables */
.table-scroll { overflow-x: auto; border-radius: var(--radius-sm); border: 1px solid var(--border); margin: 1.3rem 0; background: var(--surface-raised); }
table { width: 100%; border-collapse: collapse; min-width: 560px; }
th, td { border: 1px solid var(--border); padding: 0.66rem 0.8rem; text-align: left; vertical-align: top; }
thead th { background: var(--tint-mustard); color: var(--text-strong); font-weight: 800; }
tbody tr:nth-child(even) { background: var(--surface-2); }

input[type="checkbox"] { accent-color: var(--olive); transform: translateY(1px); }

/* ---------------------------------------------------------------- FAQ */
.faq { margin-top: 2rem; }
.faq > h2 { font-size: clamp(1.35rem, 2vw, 1.7rem); color: var(--olive); margin-bottom: 0.9rem; }
.faq__item {
  border: 1px solid var(--border); border-radius: var(--radius-sm); background: var(--surface);
  margin: 0.6rem 0; overflow: hidden; box-shadow: var(--shadow-sm);
}
.faq__item > summary {
  list-style: none; cursor: pointer; padding: 0.9rem 1.05rem; font-weight: 800; color: var(--text-strong);
  display: flex; gap: 0.6rem; align-items: center; justify-content: space-between;
}
.faq__item > summary::-webkit-details-marker { display: none; }
.faq__item > summary::after { content: "+"; color: var(--pumpkin); font-size: 1.3rem; font-weight: 700; line-height: 1; transition: transform 160ms ease; }
.faq__item[open] > summary::after { transform: rotate(45deg); }
.faq__item > summary:hover { background: var(--tint-mustard); }
.faq__answer { padding: 0 1.05rem 1rem; color: var(--text); }
.faq__answer > :first-child { margin-top: 0; }
.faq__answer > :last-child { margin-bottom: 0; }

/* ---------------------------------------------------------------- See also + related */
.see-also { margin-top: 1.8rem; padding: 1.1rem 1.2rem; border-radius: var(--radius); border: 1px solid var(--border); background: var(--surface-2); }
.see-also h2 { margin: 0 0 0.6rem; font-size: 1.1rem; color: var(--gold-brown); border: 0; padding: 0; }
.see-also ul { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 0.4rem 1.2rem; }
.see-also li { margin: 0; padding-left: 1.1rem; position: relative; }
.see-also li::before { content: "→"; position: absolute; left: 0; color: var(--pumpkin); font-weight: 700; }

.related { margin-top: 1.8rem; padding: 1.2rem; border-radius: var(--radius); border: 1px solid var(--border); background: var(--surface); }
.related > h2 { margin: 0 0 0.4rem; color: var(--gold-brown); border: 0; padding: 0; font-size: 1.15rem; }

/* ---------------------------------------------------------------- footer */
.site-footer { border-top: 1px solid var(--border); background: color-mix(in srgb, var(--surface) 92%, transparent); margin-top: 2rem; }
.footer-inner { display: flex; flex-wrap: wrap; gap: 1.4rem; justify-content: space-between; padding: 1.6rem 0; }
.footer-brand { font-weight: 800; color: var(--text-strong); }
.footer-brand p { margin: 0.3rem 0 0; color: var(--muted); font-size: 0.9rem; max-width: 42ch; }
.footer-links { display: flex; gap: 1rem 1.4rem; flex-wrap: wrap; }
.footer-links a { color: var(--muted); text-decoration: none; font-weight: 600; }
.footer-links a:hover { color: var(--link-hover); }
.footer-bottom { border-top: 1px solid var(--border); padding: 0.9rem 0; font-size: 0.85rem; color: var(--muted); }

/* ---------------------------------------------------------------- responsive */
@media (max-width: 860px) {
  .nav-shell { flex-wrap: wrap; }
  .site-header nav { justify-content: flex-start; }
}
@media (min-width: 1600px) { :root { --maxw: 1320px; } }
