:root {
  --bg: #fbfaf8;
  --surface: #ffffff;
  --surface-2: #f5f1ed;
  --ink: #1c1917;
  --muted: #6f6862;
  --rule: #e6dfd8;
  --rule-strong: #cfc5bb;
  --ember: #ea470c;
  --ember-soft: #fff0e9;
  --ember-dark: #9d2d06;
  --sidebar: #17120f;
  --sidebar-ink: #f7f1eb;
  --sidebar-muted: #a89e96;
  --success: #18794e;
  --warning: #a15c00;
  --danger: #b42318;
  --radius: 6px;
  --mono: "IBM Plex Mono", "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  --sans: "IBM Plex Sans", "Plus Jakarta Sans", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--ember-dark); text-underline-offset: 3px; }
a:hover { color: var(--ember); }
code, pre, kbd { font-family: var(--mono); }
code { font-size: 0.88em; background: var(--surface-2); border: 1px solid var(--rule); border-radius: 4px; padding: 1px 5px; }
pre { margin: 0; overflow-x: auto; background: #1d1714; color: #f8f1ea; border-radius: var(--radius); padding: 18px 20px; font-size: 13px; line-height: 1.6; }
pre code { background: none; border: 0; padding: 0; color: inherit; font-size: inherit; }
kbd { font-size: 11px; border: 1px solid var(--rule-strong); border-bottom-width: 2px; border-radius: 4px; padding: 1px 5px; background: var(--surface); }

/* ── shell ─────────────────────────────────────────────────── */
.shell { display: grid; grid-template-columns: 270px minmax(0, 1fr); min-height: 100vh; }
.sidebar {
  position: sticky; top: 0; height: 100vh; overflow-y: auto;
  background: var(--sidebar); color: var(--sidebar-ink);
  padding: 22px 18px 34px;
}
.brand { display: flex; align-items: center; gap: 10px; padding: 0 8px 18px; border-bottom: 1px solid rgba(255,255,255,0.12); color: var(--sidebar-ink); }
.brand:hover { color: #fff; }
.brand-mark { width: 28px; height: 28px; flex: none; display: block; }
.brand-name { font-weight: 750; letter-spacing: -0.02em; font-size: 17px; }
.brand-sub { display: block; font-size: 10px; letter-spacing: 0.14em; color: var(--sidebar-muted); text-transform: uppercase; margin-top: 2px; }
.side-search { display: flex; align-items: center; gap: 8px; margin: 16px 4px 6px; border: 1px solid rgba(255,255,255,0.14); border-radius: 5px; padding: 7px 9px; color: var(--sidebar-muted); }
.side-search input { width: 100%; background: none; border: 0; outline: none; color: var(--sidebar-ink); font: inherit; font-size: 13px; }
.side-search input::placeholder { color: var(--sidebar-muted); }
.nav-group { margin-top: 20px; }
.nav-label { padding: 0 10px 6px; font-size: 10px; font-weight: 700; letter-spacing: 0.15em; text-transform: uppercase; color: var(--sidebar-muted); }
.nav a { display: block; padding: 6px 10px; border-radius: 4px; color: var(--sidebar-ink); text-decoration: none; font-size: 13px; }
.nav a:hover { background: rgba(255,255,255,0.07); color: white; }
.nav a.active { background: var(--ember); color: white; }
.nav .external { color: #ffb394; }
.sidebar-foot { margin-top: 28px; padding: 14px 10px 0; border-top: 1px solid rgba(255,255,255,0.12); font-size: 11.5px; color: var(--sidebar-muted); }
.sidebar-foot a { color: #ffb394; text-decoration: none; }

.main { min-width: 0; }
.topbar {
  position: sticky; top: 0; z-index: 20;
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  height: 54px; padding: 0 32px; background: rgba(251,250,248,0.94); backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--rule);
}
.topbar-left { display: flex; align-items: center; gap: 12px; min-width: 0; }
.topbar-brand { display: flex; align-items: center; gap: 7px; text-decoration: none; }
.topbar-logo { width: 22px; height: 22px; display: block; }
.topbar-title { font-size: 12px; font-weight: 650; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); }
.env-pill { display: inline-flex; align-items: center; gap: 5px; border: 1px solid var(--rule); border-radius: 999px; padding: 2px 8px; font-size: 10.5px; font-weight: 650; color: var(--muted); background: var(--surface); }
.env-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--success); }
.topbar-links { display: flex; align-items: center; gap: 16px; font-size: 13px; font-weight: 600; }
.topbar-links a { text-decoration: none; color: var(--muted); }
.topbar-links a:hover { color: var(--ink); }
.menu-button { display: none; border: 1px solid var(--rule); background: var(--surface); border-radius: 5px; padding: 5px 9px; font: inherit; font-weight: 700; }

.content { display: grid; grid-template-columns: minmax(0, 860px) 220px; gap: 48px; padding: 42px 32px 90px; }
.doc { min-width: 0; }
.doc h1 { margin: 0 0 10px; font-size: clamp(30px, 4vw, 44px); line-height: 1.1; letter-spacing: -0.035em; }
.doc h2 { margin: 52px 0 12px; padding-top: 8px; font-size: 26px; line-height: 1.2; letter-spacing: -0.025em; }
.doc h3 { margin: 30px 0 8px; font-size: 18px; line-height: 1.3; letter-spacing: -0.01em; }
.doc h4 { margin: 22px 0 6px; font-size: 15px; }
.doc p { margin: 10px 0; }
.doc ul, .doc ol { padding-left: 22px; }
.doc li { margin: 5px 0; }
.lede { font-size: 17px; line-height: 1.6; color: var(--muted); max-width: 70ch; }
.eyebrow { display: inline-block; margin-bottom: 8px; font-size: 10.5px; font-weight: 750; letter-spacing: 0.16em; text-transform: uppercase; color: var(--ember-dark); }
.rule { height: 1px; background: var(--rule); margin: 34px 0; border: 0; }
.section-anchor { scroll-margin-top: 74px; }

.toc { position: sticky; top: 78px; align-self: start; padding-top: 6px; font-size: 12px; }
.toc p { margin: 0 0 8px; font-size: 10px; letter-spacing: 0.15em; font-weight: 750; text-transform: uppercase; color: var(--muted); }
.toc a { display: block; padding: 4px 0 4px 11px; border-left: 2px solid var(--rule); color: var(--muted); text-decoration: none; }
.toc a:hover, .toc a.active { border-left-color: var(--ember); color: var(--ink); }

.callout { margin: 18px 0; border: 1px solid var(--rule); border-left: 3px solid var(--ember); background: var(--surface); padding: 13px 16px; border-radius: 0 var(--radius) var(--radius) 0; }
.callout strong { display: block; margin-bottom: 2px; font-size: 13px; }
.callout.warn { border-left-color: var(--warning); background: #fffaf0; }
.callout.info { border-left-color: #2563eb; background: #f5f8ff; }
.callout p { margin: 4px 0; font-size: 13.5px; }

.grid { display: grid; gap: 12px; }
.grid.two { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.card { border: 1px solid var(--rule); background: var(--surface); border-radius: var(--radius); padding: 16px 18px; }
.card h3 { margin: 0 0 5px; font-size: 15px; }
.card p { margin: 0; color: var(--muted); font-size: 13px; }
.card .card-link { display: inline-block; margin-top: 10px; font-size: 12.5px; font-weight: 700; text-decoration: none; }

.table-wrap { margin: 16px 0; border: 1px solid var(--rule); border-radius: var(--radius); overflow: auto; background: var(--surface); }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { text-align: left; padding: 9px 12px; border-bottom: 1px solid var(--rule); vertical-align: top; }
th { font-size: 10.5px; letter-spacing: 0.09em; text-transform: uppercase; color: var(--muted); background: var(--surface-2); }
tr:last-child td { border-bottom: 0; }

.code-block { position: relative; margin: 16px 0; }
.code-block .copy { position: absolute; top: 8px; right: 8px; border: 1px solid rgba(255,255,255,0.25); background: rgba(255,255,255,0.08); color: #f8f1ea; border-radius: 4px; padding: 3px 8px; font: 600 11px var(--sans); cursor: pointer; }
.code-block .copy:hover { background: rgba(255,255,255,0.16); }
.code-label { display: block; margin: 18px 0 5px; font-size: 10.5px; font-weight: 750; letter-spacing: 0.13em; text-transform: uppercase; color: var(--muted); }

.badge { display: inline-block; border-radius: 999px; padding: 1px 8px; font-size: 10.5px; font-weight: 700; letter-spacing: 0.02em; }
.badge.live { background: #e8f5ee; color: var(--success); }
.badge.sandbox { background: #fff4df; color: var(--warning); }
.badge.admin { background: #fff0e9; color: var(--ember-dark); }
.badge.neutral { background: var(--surface-2); color: var(--muted); }

.footer { margin-top: 64px; padding-top: 18px; border-top: 1px solid var(--rule); color: var(--muted); font-size: 12px; }
.footer a { text-decoration: none; font-weight: 600; }

@media (max-width: 1080px) {
  .content { grid-template-columns: minmax(0, 1fr); padding-right: 28px; }
  .toc { display: none; }
}
@media (max-width: 780px) {
  .shell { grid-template-columns: 1fr; }
  .sidebar { position: fixed; inset: 0 auto 0 0; width: 280px; z-index: 50; transform: translateX(-102%); transition: transform 180ms ease; }
  body.nav-open .sidebar { transform: translateX(0); }
  body.nav-open::after { content: ""; position: fixed; inset: 0; z-index: 40; background: rgba(0,0,0,0.35); }
  .menu-button { display: inline-block; }
  .topbar { padding: 0 18px; }
  .topbar-title { display: none; }
  .content { padding: 28px 18px 70px; }
  .grid.two { grid-template-columns: 1fr; }
  .topbar-links .hide-sm { display: none; }
}
@media print {
  .sidebar, .topbar, .toc, .code-block .copy { display: none; }
  .shell { display: block; }
  .content { padding: 0; max-width: none; }
}