html { -webkit-text-size-adjust: 100%; }
body { margin: 0; }
img { max-width: 100%; }
[hidden] { display: none !important; }

/* Layout: navy masthead band, then a sticky section index beside one readable column of reference content. */
:root {
  --bg: #f7f8fb;
  --surface: #ffffff;
  --ink: #0d1530;
  --muted: #56607a;
  --line: #e1e5ee;
  --brand: #e8240c;
  --brand-ink: #c41d08;
  --navy: #010b27;
  --navy-ink: #e9edf8;
  --code-bg: #0e1631;
  --code-ink: #dfe6f7;
  --code-dim: #8b97b8;
  --tint: #fdeeeb;
  --ok: #157a4f;
  --ok-bg: #e5f5ee;
  --warn: #9a5b00;
  --warn-bg: #fdf1dc;
  --bad: #b3261e;
  --bad-bg: #fbe7e5;
  --info: #2251c7;
  --info-bg: #e7eefc;
  --f-display: "Plus Jakarta Sans", "Segoe UI", system-ui, sans-serif;
  --f-body: "DM Sans", "Segoe UI", system-ui, sans-serif;
  --f-mono: "JetBrains Mono", ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #070c1d; --surface: #0e1530; --ink: #e8ecf7; --muted: #9aa5c2; --line: #222c4b;
    --brand: #ff5a3c; --brand-ink: #ff7a61; --navy: #020818; --navy-ink: #e9edf8;
    --code-bg: #050a1a; --code-ink: #dfe6f7; --code-dim: #7f8bab; --tint: #2a1410;
    --ok: #5fd39c; --ok-bg: #0f2a1f; --warn: #f2b45c; --warn-bg: #2d200b; --bad: #ff8a80; --bad-bg: #2e1311;
    --info: #8eaaff; --info-bg: #131f42;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #070c1d; --surface: #0e1530; --ink: #e8ecf7; --muted: #9aa5c2; --line: #222c4b;
  --brand: #ff5a3c; --brand-ink: #ff7a61; --navy: #020818; --navy-ink: #e9edf8;
  --code-bg: #050a1a; --code-ink: #dfe6f7; --code-dim: #7f8bab; --tint: #2a1410;
  --ok: #5fd39c; --ok-bg: #0f2a1f; --warn: #f2b45c; --warn-bg: #2d200b; --bad: #ff8a80; --bad-bg: #2e1311;
  --info: #8eaaff; --info-bg: #131f42;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--f-body);
  font-size: 16px;
  line-height: 1.6;
}
a { color: var(--brand-ink); text-underline-offset: 3px; }
a:focus-visible, button:focus-visible { outline: 2px solid var(--brand); outline-offset: 2px; border-radius: 4px; }

/* ---------- masthead ---------- */
.mast {
  background: var(--navy);
  color: var(--navy-ink);
  padding-left: max(16px, env(safe-area-inset-left, 0px));
  padding-right: max(16px, env(safe-area-inset-right, 0px));
  padding-block: 40px 36px;
}
.mast-inner { max-width: 1120px; margin: 0 auto; display: grid; gap: 18px; }
.brand { display: flex; align-items: center; gap: 10px; font-family: var(--f-display); font-weight: 800; letter-spacing: -0.01em; font-size: 15px; }
.brand-mark { width: 26px; height: 26px; border-radius: 7px; background: #e8240c; display: grid; place-items: center; color: #fff; font-size: 13px; font-weight: 800; }
.brand small { font-family: var(--f-body); font-weight: 500; color: #9aa5c2; letter-spacing: 0.08em; text-transform: uppercase; font-size: 11px; }
.mast h1 { font-family: var(--f-display); font-weight: 800; font-size: clamp(30px, 5vw, 44px); line-height: 1.1; margin: 0; letter-spacing: -0.02em; text-wrap: balance; }
.mast p { margin: 0; max-width: 62ch; color: #c3cbe0; font-size: 17px; }
.base {
  display: flex; flex-wrap: wrap; align-items: center; gap: 10px;
  font-family: var(--f-mono); font-size: 14px;
}
.base-url { background: rgba(255,255,255,0.07); border: 1px solid rgba(255,255,255,0.14); border-radius: 8px; padding: 8px 12px; overflow-wrap: anywhere; color: #fff; }
.pill { font-family: var(--f-body); font-size: 12px; font-weight: 600; border-radius: 999px; padding: 3px 10px; letter-spacing: 0.02em; }
.pill-v { background: #e8240c; color: #fff; }

/* ---------- shell ---------- */
.shell {
  max-width: 1120px; margin: 0 auto;
  display: grid; grid-template-columns: 220px minmax(0, 1fr); gap: 48px;
  padding-left: max(16px, env(safe-area-inset-left, 0px));
  padding-right: max(16px, env(safe-area-inset-right, 0px));
  padding-block: 36px 80px;
}
.toc { position: sticky; top: calc(env(safe-area-inset-top, 0px) + 20px); align-self: start; display: grid; gap: 2px; font-size: 14px; }
.toc-label { font-size: 11px; font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); margin: 0 0 6px 10px; }
.toc a { color: var(--muted); text-decoration: none; padding: 6px 10px; border-radius: 7px; }
.toc a:hover { color: var(--ink); background: var(--surface); }
.toc a.active { color: var(--brand-ink); background: var(--tint); font-weight: 600; }

main { min-width: 0; display: grid; gap: 56px; }
section { display: grid; gap: 16px; scroll-margin-top: 20px; }
h2 { font-family: var(--f-display); font-weight: 800; font-size: 26px; letter-spacing: -0.015em; margin: 0; text-wrap: balance; }
h3 { font-family: var(--f-display); font-weight: 700; font-size: 18px; margin: 8px 0 0; text-wrap: balance; }
p { margin: 0; max-width: 68ch; }
.lead { color: var(--muted); max-width: 68ch; }
ul.tight { margin: 0; padding-left: 20px; display: grid; gap: 6px; max-width: 68ch; }
code { font-family: var(--f-mono); font-size: 0.86em; background: var(--surface); border: 1px solid var(--line); border-radius: 5px; padding: 1px 5px; overflow-wrap: anywhere; }

/* ---------- code blocks ---------- */
.code { position: relative; background: var(--code-bg); border-radius: 12px; overflow: hidden; }
.code-bar { display: flex; align-items: center; justify-content: space-between; gap: 8px; padding: 8px 10px 8px 14px; border-bottom: 1px solid rgba(255,255,255,0.07); }
.code-title { font-family: var(--f-mono); font-size: 12px; color: var(--code-dim); }
.tabs { display: flex; gap: 4px; flex-wrap: wrap; }
.tab { font: 500 12px var(--f-mono); color: var(--code-dim); background: transparent; border: 0; padding: 5px 9px; border-radius: 6px; cursor: pointer; }
.tab[aria-selected="true"] { color: #fff; background: rgba(255,255,255,0.1); }
.copy { font: 600 12px var(--f-body); color: var(--code-ink); background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.12); border-radius: 6px; padding: 4px 10px; cursor: pointer; }
.copy:hover { background: rgba(255,255,255,0.16); }
pre { margin: 0; padding: 16px 18px; overflow-x: auto; font: 13.5px/1.6 var(--f-mono); color: var(--code-ink); tab-size: 2; }
pre .c { color: var(--code-dim); }
pre .k { color: #ff9b85; }
pre .s { color: #9fe0b9; }

/* ---------- endpoint list ---------- */
.endpoints { display: grid; border: 1px solid var(--line); border-radius: 12px; background: var(--surface); overflow: hidden; }
.ep { display: grid; grid-template-columns: 64px minmax(0, 1fr); gap: 4px 14px; padding: 12px 16px; border-top: 1px solid var(--line); align-items: baseline; }
.ep:first-child { border-top: 0; }
.ep-path { font-family: var(--f-mono); font-size: 14px; overflow-wrap: anywhere; }
.ep-desc { grid-column: 2; color: var(--muted); font-size: 14.5px; }
.m { font: 600 11px var(--f-mono); border-radius: 5px; padding: 3px 0; text-align: center; letter-spacing: 0.04em; }
.m-get { color: var(--info); background: var(--info-bg); }
.m-post { color: var(--ok); background: var(--ok-bg); }
.m-put { color: var(--warn); background: var(--warn-bg); }
.ep-group { padding: 8px 16px; background: var(--bg); font-size: 11px; font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); border-top: 1px solid var(--line); }
.ep-group:first-child { border-top: 0; }

/* ---------- tables ---------- */
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 12px; background: var(--surface); }
table { border-collapse: collapse; width: 100%; font-size: 14.5px; }
th, td { text-align: left; padding: 10px 14px; border-top: 1px solid var(--line); vertical-align: top; }
thead th { border-top: 0; font-size: 12px; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; color: var(--muted); background: var(--bg); }
td code, th code { white-space: nowrap; }
td.req { color: var(--brand-ink); font-weight: 600; white-space: nowrap; }
td.opt { color: var(--muted); white-space: nowrap; }

/* ---------- status flow ---------- */
.flow { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; padding: 18px; border: 1px solid var(--line); border-radius: 12px; background: var(--surface); }
.st { font: 500 13px var(--f-mono); padding: 6px 11px; border-radius: 999px; border: 1px solid var(--line); background: var(--bg); white-space: nowrap; }
.st-go { border-color: transparent; background: var(--info-bg); color: var(--info); }
.st-done { border-color: transparent; background: var(--ok-bg); color: var(--ok); }
.st-end { border-color: transparent; background: var(--bad-bg); color: var(--bad); }
.arrow { color: var(--muted); font-size: 14px; }
.flow-note { width: 100%; font-size: 14px; color: var(--muted); }

/* ---------- callouts + cards ---------- */
.note { border-left: 3px solid var(--brand); background: var(--tint); padding: 12px 16px; border-radius: 0 10px 10px 0; max-width: 72ch; font-size: 15px; }
.note strong { color: var(--ink); }
.keys { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 12px; }
.keycard { border: 1px solid var(--line); background: var(--surface); border-radius: 12px; padding: 16px; display: grid; gap: 6px; align-content: start; }
.keycard .kname { font-family: var(--f-mono); font-weight: 500; font-size: 14px; }
.keycard p { color: var(--muted); font-size: 14.5px; }
.steps { margin: 0; padding-left: 22px; display: grid; gap: 8px; max-width: 68ch; }

footer { border-top: 1px solid var(--line); padding-top: 20px; color: var(--muted); font-size: 14px; }

@media (max-width: 880px) {
  .shell { grid-template-columns: minmax(0, 1fr); gap: 28px; padding-block: 24px 64px; }
  .toc { position: static; display: flex; flex-wrap: wrap; gap: 6px; }
  .toc-label { width: 100%; margin: 0 0 2px; }
  .toc a { background: var(--surface); border: 1px solid var(--line); padding: 5px 10px; font-size: 13px; }
  main { gap: 44px; }
}
@media (max-width: 480px) {
  .ep { grid-template-columns: 52px minmax(0, 1fr); padding: 12px; }
  pre { font-size: 12.5px; padding: 14px; }
}

.mast-top { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px; }
.mast-nav { display: flex; flex-wrap: wrap; gap: 6px; }
.mast-nav a { color: #c3cbe0; text-decoration: none; font-size: 14px; font-weight: 500; padding: 6px 10px; border-radius: 7px; }
.mast-nav a:hover { color: #fff; background: rgba(255,255,255,0.08); }
.mast-nav a[aria-current="page"] { color: #fff; background: rgba(255,255,255,0.12); }