/* Holdprint — API & IA docs. Tema claro refinado, acento azul Holdprint. OKLCH. */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&family=JetBrains+Mono:wght@400;500;600&display=swap');

:root {
  --bg: oklch(0.986 0.003 255);
  --surface: oklch(1 0 0);
  --surface-2: oklch(0.975 0.005 255);
  --border: oklch(0.912 0.007 255);
  --border-strong: oklch(0.86 0.01 255);
  --ink: oklch(0.24 0.015 264);
  --ink-soft: oklch(0.38 0.015 264);
  --muted: oklch(0.505 0.016 264);
  --navy: oklch(0.205 0.03 256);
  --navy-2: oklch(0.265 0.034 256);
  --brand: oklch(0.62 0.196 256);
  --brand-strong: oklch(0.52 0.205 257);
  --brand-tint: oklch(0.955 0.028 256);
  --brand-ring: oklch(0.62 0.196 256 / 0.38);
  --code-bg: oklch(0.205 0.03 256);
  --code-surface: oklch(0.255 0.02 266);
  --code-ink: oklch(0.92 0.01 255);
  --code-muted: oklch(0.66 0.02 255);
  --code-accent: oklch(0.78 0.12 235);
  --shadow-sm: 0 1px 2px oklch(0.24 0.02 264 / 0.06), 0 1px 1px oklch(0.24 0.02 264 / 0.04);
  --shadow-md: 0 8px 24px oklch(0.24 0.03 264 / 0.08), 0 2px 6px oklch(0.24 0.03 264 / 0.05);
  --shadow-lg: 0 24px 60px oklch(0.24 0.04 264 / 0.14);
  --radius: 12px;
  --sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --mono: 'JetBrains Mono', ui-monospace, 'SF Mono', Menlo, monospace;
  --sidebar-w: 256px;
  --header-h: 60px;
  --content-max: 760px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);

  --z-sticky: 100;
  --z-backdrop: 200;
  --z-drawer: 210;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: oklch(0.17 0.012 264);
    --surface: oklch(0.205 0.014 264);
    --surface-2: oklch(0.235 0.015 264);
    --border: oklch(0.30 0.015 264);
    --border-strong: oklch(0.37 0.018 264);
    --ink: oklch(0.96 0.006 255);
    --ink-soft: oklch(0.82 0.01 255);
    --muted: oklch(0.66 0.018 255);
    --brand: oklch(0.70 0.15 257);
    --brand-strong: oklch(0.78 0.13 257);
    --brand-tint: oklch(0.30 0.05 257);
    --code-bg: oklch(0.145 0.014 266);
    --code-surface: oklch(0.195 0.016 266);
    --shadow-sm: 0 1px 2px oklch(0 0 0 / 0.4);
    --shadow-md: 0 8px 24px oklch(0 0 0 / 0.45);
    --shadow-lg: 0 24px 60px oklch(0 0 0 / 0.55);
  }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 24px); }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  font-family: var(--sans);
  background: var(--bg);
  color: var(--ink);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a { color: var(--brand-strong); text-decoration: none; }
a:hover { text-decoration: underline; }
::selection { background: var(--brand-ring); }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: var(--z-sticky);
  height: var(--header-h);
  display: flex; align-items: center; gap: 16px;
  padding: 0 22px;
  background: var(--navy);
  border-bottom: 1px solid oklch(1 0 0 / 0.08);
}
.brand-mark { display: flex; align-items: center; gap: 9px; }
.brand-mark:hover { text-decoration: none; }
.brand-logo { height: 21px; width: auto; display: block; }
.brand-spark { width: 15px; height: 15px; color: var(--brand); flex-shrink: 0; margin-left: -2px; }
.brand-tagline { color: oklch(0.72 0.02 250); font-size: 13px; font-weight: 500; padding-left: 11px; margin-left: 3px; border-left: 1px solid oklch(1 0 0 / 0.16); letter-spacing: -0.01em; }
.header-nav { margin-left: auto; display: flex; align-items: center; gap: 2px; }
.header-nav a { color: oklch(0.78 0.015 250); font-size: 14px; font-weight: 500; padding: 7px 11px; border-radius: 8px; }
.header-nav a:hover { background: oklch(1 0 0 / 0.08); color: #fff; text-decoration: none; }
.header-ghbtn { display: inline-flex; align-items: center; gap: 7px; border: 1px solid oklch(1 0 0 / 0.18); color: oklch(0.9 0.01 250); }
.header-ghbtn:hover { border-color: oklch(1 0 0 / 0.3); }
.menu-toggle { display: none; color: #fff; background: oklch(1 0 0 / 0.08); border: 1px solid oklch(1 0 0 / 0.16); }

/* ---------- Shell ---------- */
.shell { display: grid; grid-template-columns: var(--sidebar-w) minmax(0, 1fr); max-width: 1240px; margin: 0 auto; }

/* ---------- Sidebar ---------- */
.sidebar {
  position: sticky; top: var(--header-h); align-self: start;
  height: calc(100vh - var(--header-h));
  overflow-y: auto;
  padding: 28px 16px 60px 20px;
  border-right: 1px solid var(--border);
}
.nav-group { margin-bottom: 22px; }
.nav-group-title { font-size: 11px; font-weight: 700; letter-spacing: 0.07em; text-transform: uppercase; color: var(--muted); padding: 0 10px; margin-bottom: 8px; }
.nav-link { display: flex; align-items: center; gap: 9px; padding: 7px 10px; border-radius: 8px; color: var(--ink-soft); font-size: 14px; font-weight: 500; transition: background .15s, color .15s; }
.nav-link svg { width: 16px; height: 16px; color: var(--muted); flex-shrink: 0; transition: color .15s; }
.nav-link:hover { background: var(--surface-2); color: var(--ink); text-decoration: none; }
.nav-link.active { background: var(--brand-tint); color: var(--brand-strong); font-weight: 600; }
.nav-link.active svg { color: var(--brand-strong); }

/* ---------- Content ---------- */
.content { padding: 44px 40px 120px; min-width: 0; }
.content-inner { max-width: var(--content-max); }
section.doc { scroll-margin-top: calc(var(--header-h) + 20px); padding-top: 18px; margin-bottom: 56px; }
section.doc:first-of-type { padding-top: 0; }

.eyebrow { color: var(--brand-strong); font-weight: 600; font-size: 13.5px; letter-spacing: 0.01em; margin: 0 0 10px; display: flex; align-items: center; gap: 8px; }
.eyebrow svg { width: 16px; height: 16px; }

h1.hero { font-size: clamp(2.1rem, 1.5rem + 2.6vw, 3.1rem); font-weight: 800; letter-spacing: -0.035em; line-height: 1.05; margin: 0 0 16px; text-wrap: balance; }
h1.hero .grad { color: var(--brand-strong); }
.lede { font-size: clamp(1.05rem, 1rem + 0.4vw, 1.22rem); color: var(--ink-soft); max-width: 60ch; margin: 0 0 28px; text-wrap: pretty; }

h2 { font-size: 1.7rem; font-weight: 700; letter-spacing: -0.025em; margin: 0 0 8px; text-wrap: balance; }
h3 { font-size: 1.12rem; font-weight: 650; letter-spacing: -0.012em; margin: 28px 0 8px; }
.section-sub { color: var(--muted); margin: 0 0 24px; max-width: 64ch; }
p { max-width: 70ch; }
hr.rule { border: 0; border-top: 1px solid var(--border); margin: 0 0 40px; }

/* ---------- Hero demo (chat tangível) ---------- */
.hero-demo { margin: 4px 0 8px; max-width: 460px; border: 1px solid var(--border); border-radius: 14px; background: var(--surface); box-shadow: var(--shadow-md); overflow: hidden; }
.hero-demo-bar { display: flex; align-items: center; gap: 7px; padding: 9px 13px; background: var(--surface-2); border-bottom: 1px solid var(--border); }
.hero-demo-bar .d { width: 9px; height: 9px; border-radius: 50%; background: var(--border-strong); }
.hero-demo-bar .who { margin-left: 6px; font-size: 12px; color: var(--muted); font-weight: 500; }
.hero-demo-body { padding: 14px; display: flex; flex-direction: column; gap: 10px; }
.bubble { padding: 9px 13px; border-radius: 12px; font-size: 14px; max-width: 88%; line-height: 1.5; }
.bubble.q { align-self: flex-end; background: var(--brand-strong); color: #fff; border-bottom-right-radius: 4px; }
.bubble.a { align-self: flex-start; background: var(--surface-2); color: var(--ink); border: 1px solid var(--border); border-bottom-left-radius: 4px; }
.bubble.a b { color: var(--brand-strong); }
.bubble.a .tool { display: inline-flex; align-items: center; gap: 5px; font-family: var(--mono); font-size: 11.5px; color: var(--muted); margin-bottom: 5px; }
.bubble.a .tool::before { content: ''; width: 6px; height: 6px; border-radius: 50%; background: oklch(0.72 0.15 150); }

/* ---------- Path cards (MCP vs Mongo) ---------- */
.paths { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 16px; margin: 8px 0 4px; }
.path { position: relative; border: 1px solid var(--border); border-radius: var(--radius); padding: 22px; background: var(--surface); box-shadow: var(--shadow-sm); transition: transform .2s var(--ease), box-shadow .2s var(--ease), border-color .2s; }
.path:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); border-color: var(--border-strong); }
.path.featured { border-color: var(--brand-ring); }
.path-ico { width: 38px; height: 38px; border-radius: 10px; background: var(--brand-tint); color: var(--brand-strong); display: grid; place-items: center; margin-bottom: 14px; }
.path-ico svg { width: 19px; height: 19px; }
.path h3 { margin: 0 0 6px; font-size: 1.05rem; }
.path p { font-size: 14px; color: var(--muted); margin: 0; }
.tag-rec { position: absolute; top: 16px; right: 16px; font-size: 11px; font-weight: 700; letter-spacing: .03em; text-transform: uppercase; color: var(--brand-strong); background: var(--brand-tint); padding: 3px 9px; border-radius: 999px; }

/* ---------- Code blocks ---------- */
.code { position: relative; background: var(--code-bg); border-radius: var(--radius); margin: 14px 0; box-shadow: var(--shadow-sm); overflow: hidden; }
.code-head { display: flex; align-items: center; gap: 7px; padding: 9px 14px; border-bottom: 1px solid oklch(1 0 0 / 0.08); }
.code-dot { width: 11px; height: 11px; border-radius: 50%; }
.code-label { margin-left: auto; font-family: var(--mono); font-size: 11.5px; color: var(--code-muted); }
.code pre { margin: 0; padding: 16px 18px; overflow-x: auto; font-family: var(--mono); font-size: 13.5px; line-height: 1.7; color: var(--code-ink); }
.code pre .c { color: var(--code-muted); }   /* comment */
.code pre .f { color: var(--code-accent); }   /* flag/accent */
.code pre .p { color: oklch(0.82 0.13 145); } /* prompt-output */
.copy-btn { position: absolute; top: 9px; right: 10px; width: 30px; height: 30px; display: grid; place-items: center; border: 0; border-radius: 7px; background: oklch(1 0 0 / 0.08); color: var(--code-muted); cursor: pointer; transition: background .15s, color .15s; }
.copy-btn:hover { background: oklch(1 0 0 / 0.16); color: var(--code-ink); }
.copy-btn.ok { color: oklch(0.82 0.13 145); }
.copy-btn svg { width: 15px; height: 15px; }
:root .code-head .code-dot:nth-child(1) { background: oklch(0.68 0.17 25); }
:root .code-head .code-dot:nth-child(2) { background: oklch(0.82 0.14 90); }
:root .code-head .code-dot:nth-child(3) { background: oklch(0.78 0.15 150); }
code.inline { font-family: var(--mono); font-size: 0.88em; background: var(--surface-2); border: 1px solid var(--border); border-radius: 6px; padding: 1px 6px; color: var(--ink); }

/* ---------- Steps ---------- */
.steps { counter-reset: step; margin: 18px 0; display: flex; flex-direction: column; gap: 6px; }
.step { display: grid; grid-template-columns: 34px 1fr; gap: 14px; padding-bottom: 18px; position: relative; }
.step:not(:last-child)::before { content: ''; position: absolute; left: 16px; top: 34px; bottom: 0; width: 2px; background: var(--border); }
.step-num { counter-increment: step; width: 34px; height: 34px; border-radius: 50%; background: var(--surface); border: 1.5px solid var(--brand-ring); color: var(--brand-strong); display: grid; place-items: center; font-weight: 700; font-size: 14px; z-index: 1; }
.step-num::before { content: counter(step); }
.step-body { padding-top: 4px; min-width: 0; }
.step-body h3 { margin: 0 0 4px; font-size: 1rem; }
.step-body p { margin: 0 0 6px; font-size: 14.5px; color: var(--muted); }

/* ---------- Tabs (harness switch) ---------- */
.tabs { margin: 16px 0; }
.tab-bar { display: flex; gap: 4px; border-bottom: 1px solid var(--border); margin-bottom: 16px; flex-wrap: wrap; }
.tab-btn { border: 0; background: none; padding: 9px 13px; font: inherit; font-size: 14px; font-weight: 600; color: var(--muted); cursor: pointer; border-bottom: 2px solid transparent; margin-bottom: -1px; display: inline-flex; align-items: center; gap: 7px; }
.tab-btn svg { width: 15px; height: 15px; }
.tab-btn:hover { color: var(--ink); }
.tab-btn.active { color: var(--brand-strong); border-bottom-color: var(--brand-strong); }
.tab-panel { display: none; }
.tab-panel.active { display: block; animation: fade .25s var(--ease); }
@keyframes fade { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; transform: none; } }
@media (prefers-reduced-motion: reduce) { .tab-panel.active { animation: none; } }

/* ---------- Callouts ---------- */
.callout { display: flex; gap: 12px; border: 1px solid var(--border); border-radius: var(--radius); padding: 14px 16px; margin: 16px 0; background: var(--surface); font-size: 14.5px; }
.callout svg { width: 18px; height: 18px; flex-shrink: 0; margin-top: 2px; }
.callout .ct-title { font-weight: 650; margin: 0 0 2px; color: var(--ink); }
.callout p { margin: 0; color: var(--muted); }
.callout.info { background: var(--brand-tint); border-color: var(--brand-ring); }
.callout.info svg { color: var(--brand-strong); }
.callout.warn { background: oklch(0.97 0.04 85); border-color: oklch(0.85 0.09 85); }
.callout.warn svg { color: oklch(0.55 0.12 70); }
.callout.warn p, .callout.warn .ct-title { color: oklch(0.38 0.06 70); }
@media (prefers-color-scheme: dark) {
  .callout.warn { background: oklch(0.28 0.05 80); border-color: oklch(0.4 0.07 80); }
  .callout.warn p, .callout.warn .ct-title { color: oklch(0.9 0.05 90); }
}

/* ---------- Mock "screenshots" ---------- */
.shot { border: 1px solid var(--border-strong); border-radius: 14px; overflow: hidden; box-shadow: var(--shadow-md); margin: 18px 0; background: var(--surface); }
.shot-bar { display: flex; align-items: center; gap: 7px; padding: 10px 14px; background: var(--surface-2); border-bottom: 1px solid var(--border); }
.shot-bar .d { width: 11px; height: 11px; border-radius: 50%; background: var(--border-strong); }
.shot-url { margin-left: 10px; font-size: 12px; color: var(--muted); font-family: var(--mono); background: var(--surface); border: 1px solid var(--border); border-radius: 7px; padding: 3px 12px; }
.shot-body { padding: 22px; }
.shot img { display: block; width: 100%; height: auto; }
.connector-card { max-width: 420px; margin: 0 auto; border: 1px solid var(--border); border-radius: 12px; padding: 20px; background: var(--surface); box-shadow: var(--shadow-sm); }
.connector-card .cc-h { font-weight: 650; margin: 0 0 4px; }
.connector-card .cc-sub { font-size: 13px; color: var(--muted); margin: 0 0 16px; }
.field-label { font-size: 12px; font-weight: 600; color: var(--ink-soft); margin: 12px 0 5px; }
.field { border: 1px solid var(--border-strong); border-radius: 8px; padding: 9px 12px; font-size: 13.5px; font-family: var(--mono); color: var(--ink); background: var(--surface-2); }
.field.ph { color: var(--muted); }
.fake-btn { margin-top: 16px; background: var(--brand-strong); color: #fff; text-align: center; padding: 9px; border-radius: 8px; font-size: 14px; font-weight: 600; }

/* ---------- App mock (como pegar o token) ---------- */
.app-mock { display: grid; grid-template-columns: 132px 1fr; min-height: 230px; background: var(--surface); font-size: 12.5px; }
.app-mock .am-side { background: var(--navy); padding: 12px 0; color: oklch(0.78 0.015 250); }
.app-mock .am-side .am-logo { color: #fff; font-weight: 700; font-size: 13px; padding: 2px 14px 12px; letter-spacing: -0.02em; }
.app-mock .am-side .am-item { padding: 7px 14px; display: flex; align-items: center; gap: 7px; color: oklch(0.72 0.015 250); }
.app-mock .am-side .am-item.on { background: oklch(1 0 0 / 0.08); color: #fff; box-shadow: inset 2px 0 0 var(--brand); }
.app-mock .am-side .am-dot { width: 5px; height: 5px; border-radius: 50%; background: currentColor; opacity: .6; }
.app-mock .am-main { padding: 16px 18px; }
.app-mock .am-crumb { color: var(--muted); font-size: 11.5px; margin-bottom: 12px; }
.app-mock .am-crumb b { color: var(--ink); }
.app-mock .am-tabs { display: flex; gap: 6px; border-bottom: 1px solid var(--border); margin-bottom: 16px; }
.app-mock .am-tab { padding: 6px 10px; border-radius: 7px 7px 0 0; color: var(--muted); font-weight: 600; }
.app-mock .am-tab.on { color: var(--brand-strong); border-bottom: 2px solid var(--brand-strong); margin-bottom: -1px; }
.app-mock .am-label { font-size: 11px; font-weight: 600; color: var(--ink-soft); margin: 0 0 6px; }
.app-mock .am-token-row { display: flex; gap: 8px; align-items: center; }
.app-mock .am-token { flex: 1; font-family: var(--mono); font-size: 12px; color: var(--muted); background: var(--surface-2); border: 1px solid var(--border); border-radius: 7px; padding: 8px 11px; letter-spacing: 2px; }
.app-mock .am-copy { border: 1px solid var(--border-strong); background: var(--surface); border-radius: 7px; padding: 8px 13px; font-weight: 600; color: var(--ink); }
.app-mock .am-gen { margin-top: 12px; display: inline-block; background: #1ab394; color: #fff; border-radius: 7px; padding: 8px 14px; font-weight: 600; }
@media (max-width: 560px) { .app-mock { grid-template-columns: 1fr; } .app-mock .am-side { display: none; } }

/* ---------- Heading anchors ---------- */
.anchor-h { position: relative; }
.anchor-h .h-link { position: absolute; left: -1.1em; top: 0; opacity: 0; color: var(--brand-strong); text-decoration: none; transition: opacity .12s; font-weight: 400; }
.anchor-h:hover .h-link { opacity: 0.6; }
.anchor-h .h-link:hover { opacity: 1; text-decoration: none; }
@media (max-width: 920px) { .anchor-h .h-link { display: none; } }

/* ---------- Tools table ---------- */
.tools { display: grid; grid-template-columns: repeat(auto-fill, minmax(330px, 1fr)); gap: 10px; margin: 18px 0; }
.tool { display: flex; gap: 12px; padding: 13px 15px; border: 1px solid var(--border); border-radius: 10px; background: var(--surface); }
.tool code { font-family: var(--mono); font-size: 13px; color: var(--brand-strong); font-weight: 600; white-space: nowrap; }
.tool span { font-size: 13.5px; color: var(--muted); }

/* ---------- Deep reference ---------- */
.ref { border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); margin: 12px 0; overflow: hidden; }
.ref-head { display: flex; align-items: baseline; gap: 12px; flex-wrap: wrap; padding: 14px 16px 0; }
.ref-head code { font-family: var(--mono); font-size: 14px; font-weight: 600; color: var(--brand-strong); }
.ref-head .ref-tag { font-size: 11px; font-weight: 600; color: var(--muted); background: var(--surface-2); border: 1px solid var(--border); border-radius: 999px; padding: 1px 8px; }
.ref-body { padding: 6px 16px 16px; }
.ref-body > p { margin: 6px 0 0; font-size: 14.5px; color: var(--ink-soft); }
.params { margin: 12px 0 0; display: grid; gap: 6px; }
.param { display: grid; grid-template-columns: minmax(120px, max-content) 1fr; gap: 12px; font-size: 13.5px; align-items: baseline; }
.param code { font-family: var(--mono); font-size: 12.5px; color: var(--ink); background: var(--surface-2); border: 1px solid var(--border); border-radius: 5px; padding: 1px 6px; white-space: nowrap; }
.param span { color: var(--muted); }
@media (max-width: 560px) { .param { grid-template-columns: 1fr; gap: 2px; } }

/* ---------- API method badges + field tables ---------- */
.ref-tag.get { background: oklch(0.95 0.04 256); color: oklch(0.45 0.16 256); border-color: oklch(0.85 0.07 256); }
.ref-tag.post { background: oklch(0.95 0.06 150); color: oklch(0.42 0.12 150); border-color: oklch(0.85 0.09 150); }
.ref-tag.put { background: oklch(0.96 0.07 75); color: oklch(0.48 0.11 70); border-color: oklch(0.86 0.1 75); }
.ref-tag.del { background: oklch(0.95 0.05 25); color: oklch(0.5 0.16 25); border-color: oklch(0.86 0.08 25); }
.dtable { width: 100%; border-collapse: collapse; margin: 12px 0; font-size: 13.5px; border: 1px solid var(--border); border-radius: 10px; overflow: hidden; }
.dtable th { text-align: left; font-weight: 600; color: var(--ink-soft); background: var(--surface-2); padding: 9px 12px; border-bottom: 1px solid var(--border); font-size: 12.5px; }
.dtable td { padding: 9px 12px; border-bottom: 1px solid var(--border); color: var(--muted); vertical-align: top; }
.dtable tr:last-child td { border-bottom: 0; }
.dtable td:first-child { color: var(--ink); font-family: var(--mono); font-size: 12.5px; white-space: nowrap; }
.dtable code { font-family: var(--mono); font-size: 0.92em; background: var(--surface-2); border: 1px solid var(--border); border-radius: 5px; padding: 1px 5px; }
.req-yes { color: oklch(0.5 0.13 25); font-weight: 600; }
.req-no { color: var(--muted); }
.endpoint-path { font-family: var(--mono); font-size: 14px; color: var(--ink); background: var(--surface-2); border: 1px solid var(--border); border-radius: 7px; padding: 6px 11px; display: inline-block; margin: 2px 0; }

/* ---------- Domain knowledge ---------- */
.know { border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); padding: 16px 18px; margin: 12px 0; }
.know h3 { margin: 0 0 6px; font-size: 1rem; display: flex; align-items: center; gap: 8px; }
.know h3 svg { width: 17px; height: 17px; color: var(--brand-strong); }
.know p { margin: 0; font-size: 14.5px; color: var(--muted); }
.know p + p { margin-top: 8px; }
.know code.inline { font-size: 0.85em; }

/* ---------- Ask examples ---------- */
.asks { display: flex; flex-direction: column; gap: 10px; margin: 16px 0; }
.ask { display: flex; gap: 12px; align-items: flex-start; padding: 13px 16px; border: 1px solid var(--border); border-radius: 10px; background: var(--surface); }
.ask svg { width: 17px; height: 17px; color: var(--brand-strong); margin-top: 3px; flex-shrink: 0; }
.ask .q { font-weight: 550; margin: 0 0 2px; }
.ask .a { font-size: 13.5px; color: var(--muted); margin: 0; }

/* ---------- FAQ ---------- */
.faq details { border: 1px solid var(--border); border-radius: 10px; margin-bottom: 8px; background: var(--surface); overflow: hidden; }
.faq summary { cursor: pointer; padding: 15px 18px; font-weight: 600; list-style: none; display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: ''; width: 9px; height: 9px; border-right: 2px solid var(--muted); border-bottom: 2px solid var(--muted); transform: rotate(45deg); transition: transform .2s var(--ease); flex-shrink: 0; }
.faq details[open] summary::after { transform: rotate(225deg); }
.faq .faq-a { padding: 0 18px 16px; color: var(--muted); font-size: 14.5px; }
.faq .faq-a p { margin: 0; }

/* ---------- Footer ---------- */
.site-footer { border-top: 1px solid var(--border); padding: 28px 40px; color: var(--muted); font-size: 13.5px; display: flex; gap: 16px; flex-wrap: wrap; align-items: center; }
.site-footer .sep { margin-left: auto; }

/* ---------- Backdrop for mobile drawer ---------- */
.backdrop { display: none; }

/* ---------- Responsive ---------- */
@media (max-width: 920px) {
  .shell { grid-template-columns: 1fr; }
  .menu-toggle { display: inline-grid; place-items: center; width: 38px; height: 38px; border: 1px solid var(--border-strong); border-radius: 9px; background: var(--surface); color: var(--ink); cursor: pointer; }
  .menu-toggle svg { width: 18px; height: 18px; }
  .sidebar {
    position: fixed; top: 0; left: 0; bottom: 0; height: 100vh; width: 280px;
    background: var(--surface); z-index: var(--z-drawer);
    transform: translateX(-100%); transition: transform .28s var(--ease);
    padding-top: 24px; box-shadow: var(--shadow-lg);
  }
  .sidebar.open { transform: none; }
  .backdrop.show { display: block; position: fixed; inset: 0; background: oklch(0.2 0.02 264 / 0.5); z-index: var(--z-backdrop); }
  .content { padding: 28px 22px 100px; }
  .header-nav a:not(.header-ghbtn) { display: none; }
}
@media (min-width: 921px) { .menu-toggle { display: none; } }