:root {
  --bg: #ffffff; --side: #fbf8f3; --raise: #ffffff;
  --ink: #111823; --ink-2: #333b48; --muted: #6b6253; --faint: #978d7d;
  --line: #e8e0d2; --line-2: #f2ede4;
  --brand: #8a6626; --brand-ink: #6f5020; --brand-wash: #f7efdf;
  --code-bg: #121a25; --code-head: #19222f; --code-ink: #e9e4da; --code-line: #273142; --code-mute: #8d97a5;
  --t-key: #a9c7e8; --t-str: #e2c47e; --t-num: #f0a27a; --t-kw: #c9a6f0; --t-com: #7b8593; --t-tag: #a9c7e8; --t-attr: #e8c987;
  --get: #1f7a4d; --get-bg: #e3f3ea; --post: #2459a8; --post-bg: #e4ecf8; --patch: #8a5a00; --patch-bg: #f7ebd4; --del: #a3342a; --del-bg: #f8e2df;
  --tip: #1f7a4d; --tip-bg: #eef7f1; --warn: #9a4a12; --warn-bg: #fbf0e6;
  --shadow: 0 1px 2px rgba(17,24,35,.06), 0 8px 24px rgba(17,24,35,.06);
  --font-display: "Fraunces", Georgia, serif;
  --font-body: "IBM Plex Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --header: 60px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0e141c; --side: #0b1118; --raise: #141b25;
    --ink: #f2ede6; --ink-2: #d2cbbf; --muted: #9a9186; --faint: #6f685f;
    --line: #232c38; --line-2: #19212b;
    --brand: #c6a052; --brand-ink: #d9b66b; --brand-wash: rgba(198,160,82,.12);
    --code-bg: #0a0f15; --code-head: #111821; --code-line: #1f2834;
    --get: #7fc39d; --get-bg: rgba(127,195,157,.12); --post: #8fb4ee; --post-bg: rgba(143,180,238,.12); --patch: #e3b866; --patch-bg: rgba(227,184,102,.12); --del: #e78a7f; --del-bg: rgba(231,138,127,.12);
    --tip: #7fc39d; --tip-bg: rgba(127,195,157,.08); --warn: #e9a46a; --warn-bg: rgba(233,164,106,.08);
    --shadow: 0 1px 2px rgba(0,0,0,.3), 0 12px 32px rgba(0,0,0,.35);
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #0e141c; --side: #0b1118; --raise: #141b25;
  --ink: #f2ede6; --ink-2: #d2cbbf; --muted: #9a9186; --faint: #6f685f;
  --line: #232c38; --line-2: #19212b;
  --brand: #c6a052; --brand-ink: #d9b66b; --brand-wash: rgba(198,160,82,.12);
  --code-bg: #0a0f15; --code-head: #111821; --code-line: #1f2834;
  --get: #7fc39d; --get-bg: rgba(127,195,157,.12); --post: #8fb4ee; --post-bg: rgba(143,180,238,.12); --patch: #e3b866; --patch-bg: rgba(227,184,102,.12); --del: #e78a7f; --del-bg: rgba(231,138,127,.12);
  --tip: #7fc39d; --tip-bg: rgba(127,195,157,.08); --warn: #e9a46a; --warn-bg: rgba(233,164,106,.08);
  --shadow: 0 1px 2px rgba(0,0,0,.3), 0 12px 32px rgba(0,0,0,.35);
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { scroll-padding-top: calc(var(--header) + 20px); -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--ink-2); font: 15.5px/1.68 var(--font-body); -webkit-font-smoothing: antialiased; }
a { color: var(--brand-ink); text-decoration: underline; text-decoration-color: color-mix(in srgb, var(--brand) 40%, transparent); text-underline-offset: 3px; }
a:hover { text-decoration-color: currentColor; }
:focus-visible { outline: 2px solid var(--brand); outline-offset: 2px; border-radius: 4px; }
code { font-family: var(--font-mono); font-size: .86em; background: var(--line-2); border: 1px solid var(--line); border-radius: 5px; padding: .08em .36em; color: var(--ink); overflow-wrap: anywhere; }
strong { color: var(--ink); font-weight: 600; }

/* ---------- header ---------- */
.top { position: sticky; top: 0; z-index: 30; height: var(--header); display: flex; align-items: center; gap: 20px; padding: 0 20px 0 24px; background: color-mix(in srgb, var(--bg) 88%, transparent); backdrop-filter: saturate(1.4) blur(10px); border-bottom: 1px solid var(--line); }
.brand { display: flex; align-items: baseline; gap: 10px; text-decoration: none; color: var(--ink); flex-shrink: 0; }
.brand b { font: 600 21px/1 var(--font-display); letter-spacing: -.01em; }
.brand span { font: 600 11px/1 var(--font-body); letter-spacing: .14em; text-transform: uppercase; color: var(--brand); }
.search-btn { flex: 1; max-width: 420px; display: flex; align-items: center; gap: 10px; height: 38px; padding: 0 12px; background: var(--side); border: 1px solid var(--line); border-radius: 9px; color: var(--muted); font: inherit; font-size: 14px; cursor: pointer; text-align: left; }
.search-btn:hover { border-color: color-mix(in srgb, var(--brand) 45%, var(--line)); }
.search-btn svg { flex-shrink: 0; }
.search-btn .grow { flex: 1; }
kbd { font: 500 11px/1 var(--font-mono); padding: 3px 6px; border: 1px solid var(--line); border-bottom-width: 2px; border-radius: 5px; color: var(--muted); background: var(--bg); }
.top-links { margin-left: auto; display: flex; align-items: center; gap: 6px; }
.top-links a.tl { color: var(--ink-2); text-decoration: none; font-size: 14px; font-weight: 500; padding: 8px 10px; border-radius: 7px; }
.top-links a.tl:hover, .top-links a.tl.on { color: var(--ink); background: var(--side); }
.btn { display: inline-flex; align-items: center; gap: 8px; height: 36px; padding: 0 15px; border-radius: 8px; font: 600 14px/1 var(--font-body); text-decoration: none; cursor: pointer; border: 1px solid transparent; }
.btn-brand { background: var(--ink); color: var(--bg); }
.btn-brand:hover { background: color-mix(in srgb, var(--ink) 86%, var(--brand)); }
.icon-btn { width: 36px; height: 36px; display: grid; place-items: center; background: none; border: 1px solid transparent; border-radius: 8px; color: var(--muted); cursor: pointer; }
.icon-btn:hover { color: var(--ink); background: var(--side); }
.menu-btn { display: none; }

/* ---------- frame ---------- */
.frame { display: grid; grid-template-columns: 272px minmax(0, 1fr); min-height: calc(100vh - var(--header)); }
.side { position: sticky; top: var(--header); height: calc(100vh - var(--header)); overflow-y: auto; background: var(--side); border-right: 1px solid var(--line); padding: 22px 14px 48px; overscroll-behavior: contain; }
.side h4 { margin: 22px 10px 6px; font: 600 11.5px/1.2 var(--font-body); letter-spacing: .12em; text-transform: uppercase; color: var(--faint); }
.side h4:first-child { margin-top: 2px; }
.side a { display: flex; align-items: center; gap: 8px; padding: 6px 10px; border-radius: 7px; color: var(--ink-2); text-decoration: none; font-size: 14.2px; line-height: 1.35; }
.side a:hover { color: var(--ink); background: color-mix(in srgb, var(--line) 55%, transparent); }
.side a.on { color: var(--ink); background: var(--bg); box-shadow: inset 0 0 0 1px var(--line); font-weight: 500; }
.side a .method { margin-left: auto; }
.side .sub { margin: 2px 0 6px 10px; padding-left: 8px; border-left: 1px solid var(--line); }
.side .sub a { font-size: 13.4px; padding: 4px 8px; }

/* ---------- guide pages ---------- */
.page { display: grid; grid-template-columns: minmax(0, 740px) 220px; gap: 72px; padding: 48px 56px 96px; justify-content: start; }
.article { min-width: 0; }
.eyebrow { margin: 0 0 10px; font: 600 12px/1 var(--font-body); letter-spacing: .14em; text-transform: uppercase; color: var(--brand); }
h1 { font: 600 40px/1.12 var(--font-display); letter-spacing: -.02em; color: var(--ink); margin: 0 0 14px; text-wrap: balance; }
h2 { font: 600 23px/1.3 var(--font-body); letter-spacing: -.012em; color: var(--ink); margin: 52px 0 12px; position: relative; text-wrap: balance; }
h3 { font: 600 17px/1.4 var(--font-body); color: var(--ink); margin: 32px 0 8px; position: relative; }
h2 .anchor, h3 .anchor { position: absolute; left: -22px; color: var(--faint); text-decoration: none; opacity: 0; font-weight: 400; }
h2:hover .anchor, h3:hover .anchor { opacity: 1; }
.lede { font-size: 18px; line-height: 1.6; color: var(--muted); margin: 0 0 28px; max-width: 64ch; }
.article p, .article li { max-width: 72ch; }
.article ul, .article ol { padding-left: 22px; }
.article li { margin: 4px 0; }
.article li::marker { color: var(--faint); }
hr { border: 0; border-top: 1px solid var(--line); margin: 48px 0; }

.toc { position: sticky; top: calc(var(--header) + 40px); align-self: start; max-height: calc(100vh - var(--header) - 60px); overflow-y: auto; font-size: 13.4px; }
.toc p { margin: 0 0 10px; font: 600 11.5px/1 var(--font-body); letter-spacing: .12em; text-transform: uppercase; color: var(--faint); }
.toc a { display: block; padding: 4px 0 4px 12px; border-left: 1px solid var(--line); color: var(--muted); text-decoration: none; line-height: 1.4; }
.toc a.lvl3 { padding-left: 24px; font-size: 12.8px; }
.toc a:hover { color: var(--ink); }
.toc a.on { color: var(--ink); border-left-color: var(--brand); }

/* callouts */
.callout { margin: 22px 0; padding: 14px 16px 14px 18px; border-radius: 10px; background: var(--brand-wash); border: 1px solid color-mix(in srgb, var(--brand) 22%, transparent); }
.callout p { margin: 6px 0 0; }
.callout .callout-title { margin: 0; font-weight: 600; color: var(--ink); font-size: 14.5px; }
.callout-tip { background: var(--tip-bg); border-color: color-mix(in srgb, var(--tip) 28%, transparent); }
.callout-tip .callout-title { color: var(--tip); }
.callout-warn { background: var(--warn-bg); border-color: color-mix(in srgb, var(--warn) 30%, transparent); }
.callout-warn .callout-title { color: var(--warn); }

/* tables */
.table-wrap { overflow-x: auto; margin: 18px 0; border: 1px solid var(--line); border-radius: 10px; }
table { width: 100%; border-collapse: collapse; font-size: 14.2px; }
th, td { text-align: left; padding: 10px 14px; border-bottom: 1px solid var(--line-2); vertical-align: top; }
tr:last-child td { border-bottom: 0; }
th { font: 600 11.5px/1.3 var(--font-body); letter-spacing: .08em; text-transform: uppercase; color: var(--faint); background: var(--side); border-bottom: 1px solid var(--line); }
td code { white-space: nowrap; }

/* cards on the overview */
.cards { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; margin: 24px 0 8px; }
.card { display: block; padding: 18px 18px 16px; border: 1px solid var(--line); border-radius: 12px; background: var(--raise); text-decoration: none; color: var(--ink-2); transition: border-color .15s, box-shadow .15s, transform .15s; }
.card:hover { border-color: color-mix(in srgb, var(--brand) 50%, var(--line)); box-shadow: var(--shadow); }
.card .k { font: 600 11px/1 var(--font-body); letter-spacing: .14em; text-transform: uppercase; color: var(--brand); }
.card h3 { margin: 10px 0 6px; font-size: 16.5px; }
.card p { margin: 0; font-size: 14.2px; color: var(--muted); line-height: 1.55; }
.card .go { display: inline-block; margin-top: 12px; font-size: 13.5px; font-weight: 600; color: var(--brand-ink); }

/* steps */
.steps { counter-reset: step; list-style: none; padding: 0 !important; margin: 24px 0; }
.steps > li { counter-increment: step; position: relative; padding: 0 0 26px 46px; margin: 0; max-width: none !important; }
.steps > li::before { content: counter(step); position: absolute; left: 0; top: 0; width: 28px; height: 28px; border-radius: 50%; display: grid; place-items: center; font: 600 13px/1 var(--font-mono); color: var(--brand-ink); background: var(--brand-wash); border: 1px solid color-mix(in srgb, var(--brand) 30%, transparent); }
.steps > li::after { content: ""; position: absolute; left: 13.5px; top: 34px; bottom: 6px; width: 1px; background: var(--line); }
.steps > li:last-child::after { display: none; }
.steps > li > h3 { margin: 2px 0 6px; }

/* ---------- code ---------- */
.code { margin: 18px 0; background: var(--code-bg); border: 1px solid var(--code-line); border-radius: 12px; overflow: hidden; color: var(--code-ink); }
.code-head { display: flex; align-items: center; gap: 4px; min-height: 40px; padding: 0 8px 0 6px; background: var(--code-head); border-bottom: 1px solid var(--code-line); }
.code-tabs { display: flex; gap: 2px; overflow-x: auto; scrollbar-width: none; }
.code-tab { background: none; border: 0; color: var(--code-mute); font: 500 12.5px/1 var(--font-body); padding: 8px 10px; border-radius: 6px; cursor: pointer; white-space: nowrap; }
.code-tab:hover { color: var(--code-ink); }
.code-tab.on { color: var(--code-ink); background: rgba(255,255,255,.07); }
.code-title { padding: 0 8px; font: 500 12.5px/1 var(--font-body); color: var(--code-mute); }
.copy { margin-left: auto; background: none; border: 1px solid transparent; color: var(--code-mute); font: 500 12px/1 var(--font-body); padding: 6px 9px; border-radius: 6px; cursor: pointer; }
.copy:hover { color: var(--code-ink); border-color: var(--code-line); }
.copy.done { color: #8fd3a8; }
.code-pane { display: none; margin: 0; padding: 16px 18px; overflow-x: auto; font: 13px/1.65 var(--font-mono); tab-size: 2; }
.code-pane.on { display: block; }
.code-pane code { background: none; border: 0; padding: 0; color: inherit; font-size: inherit; white-space: pre; overflow-wrap: normal; }
.t-key { color: var(--t-key); } .t-str { color: var(--t-str); } .t-num { color: var(--t-num); } .t-kw { color: var(--t-kw); } .t-com { color: var(--t-com); font-style: italic; } .t-tag { color: var(--t-tag); } .t-attr { color: var(--t-attr); }

.method { display: inline-block; font: 600 10.5px/1 var(--font-mono); letter-spacing: .04em; padding: 4px 6px; border-radius: 5px; }
.m-get { color: var(--get); background: var(--get-bg); } .m-post { color: var(--post); background: var(--post-bg); } .m-patch { color: var(--patch); background: var(--patch-bg); } .m-del { color: var(--del); background: var(--del-bg); }
.endpoint-line { display: inline-flex; align-items: center; gap: 10px; padding: 8px 12px; border: 1px solid var(--line); border-radius: 9px; background: var(--side); font: 500 13.5px/1.2 var(--font-mono); color: var(--ink); margin: 4px 0 14px; max-width: 100%; overflow-x: auto; }

/* ---------- API reference ---------- */
.ref { padding: 0 0 120px; }
.ref-intro { padding: 48px 56px 8px; max-width: 1240px; }
.ref-group { border-top: 1px solid var(--line); }
.ref-group-head { padding: 56px 56px 8px; max-width: 760px; }
.ref-group-head h2 { margin-top: 0; font: 600 30px/1.15 var(--font-display); letter-spacing: -.015em; }
.ep { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 56px; padding: 44px 56px; border-top: 1px solid var(--line-2); max-width: 1320px; }
.ep-doc h3 { margin-top: 0; font-size: 21px; }
.ep-doc > p { color: var(--ink-2); }
.ep-code { position: sticky; top: calc(var(--header) + 24px); align-self: start; }
.ep-code .code { margin-top: 0; }
.ep-code .code + .code { margin-top: 14px; }
.scopes { display: flex; flex-wrap: wrap; gap: 6px; margin: 0 0 18px; }
.chip { display: inline-flex; align-items: center; gap: 6px; font: 500 12px/1 var(--font-mono); padding: 5px 8px; border-radius: 6px; border: 1px solid var(--line); color: var(--muted); background: var(--bg); }
.chip.proof { color: var(--brand-ink); border-color: color-mix(in srgb, var(--brand) 35%, transparent); background: var(--brand-wash); }
.params { margin: 18px 0 0; border-top: 1px solid var(--line); }
.params-title { margin: 26px 0 0; font: 600 12px/1 var(--font-body); letter-spacing: .1em; text-transform: uppercase; color: var(--faint); }
.param { padding: 13px 0; border-bottom: 1px solid var(--line-2); }
.param-head { display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 10px; }
.param-name { font: 600 13.5px/1.3 var(--font-mono); color: var(--ink); }
.param-type { font: 400 12.5px/1.3 var(--font-mono); color: var(--faint); }
.param-req { font: 600 11px/1 var(--font-body); letter-spacing: .06em; text-transform: uppercase; color: var(--warn); }
.param p { margin: 5px 0 0; font-size: 14.2px; color: var(--muted); }
.param .enum { margin-top: 6px; display: flex; flex-wrap: wrap; gap: 4px; }
.param .enum code { font-size: 11.5px; }
.param .children { margin: 10px 0 0 4px; padding-left: 14px; border-left: 1px solid var(--line); }
details.kids > summary { cursor: pointer; margin-top: 8px; font-size: 13px; color: var(--brand-ink); list-style: none; }
details.kids > summary::-webkit-details-marker { display: none; }
details.kids > summary::before { content: "+ "; font-family: var(--font-mono); }
details.kids[open] > summary::before { content: "− "; }
.responses { margin-top: 22px; }
.resp { display: flex; gap: 10px; align-items: baseline; padding: 7px 0; border-bottom: 1px solid var(--line-2); font-size: 14px; }
.resp .st { font: 600 12.5px/1 var(--font-mono); min-width: 34px; }
.st-2 { color: var(--get); } .st-4 { color: var(--patch); } .st-5 { color: var(--del); }

/* ---------- search ---------- */
.search-modal { position: fixed; inset: 0; z-index: 60; display: none; align-items: flex-start; justify-content: center; padding: 12vh 16px 16px; background: rgba(10,14,20,.45); backdrop-filter: blur(2px); }
.search-modal.open { display: flex; }
.search-box { width: 100%; max-width: 620px; background: var(--raise); border: 1px solid var(--line); border-radius: 14px; box-shadow: 0 24px 64px rgba(0,0,0,.28); overflow: hidden; }
.search-input { display: flex; align-items: center; gap: 10px; padding: 0 16px; border-bottom: 1px solid var(--line); color: var(--muted); }
.search-input input { flex: 1; height: 54px; background: none; border: 0; outline: 0; font: 16px var(--font-body); color: var(--ink); }
.search-results { max-height: 56vh; overflow-y: auto; padding: 8px; }
.search-results a { display: block; padding: 10px 12px; border-radius: 9px; text-decoration: none; color: var(--ink-2); }
.search-results a .r-t { display: block; color: var(--ink); font-weight: 500; font-size: 14.5px; }
.search-results a .r-s { display: block; color: var(--muted); font-size: 13px; margin-top: 2px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.search-results a.sel, .search-results a:hover { background: var(--brand-wash); }
.search-results mark { background: none; color: var(--brand-ink); font-weight: 600; }
.search-empty { padding: 26px 14px; text-align: center; color: var(--muted); font-size: 14px; }
.search-foot { display: flex; gap: 14px; padding: 9px 14px; border-top: 1px solid var(--line); color: var(--faint); font-size: 12px; }

/* ---------- widget demo + form ---------- */
.demo { border: 1px solid var(--line); border-radius: 12px; overflow: hidden; margin: 18px 0; background: var(--side); }
.demo-bar { display: flex; align-items: center; gap: 6px; padding: 9px 12px; border-bottom: 1px solid var(--line); }
.demo-bar i { width: 9px; height: 9px; border-radius: 50%; background: var(--line); }
.demo-bar span { margin-left: 8px; font: 12px var(--font-mono); color: var(--faint); }
.demo-body { padding: 14px; background: var(--bg); }
.form { display: grid; gap: 14px; padding: 22px; border: 1px solid var(--line); border-radius: 12px; background: var(--raise); margin: 22px 0; }
.form .row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.form label { display: grid; gap: 6px; font-size: 13.5px; font-weight: 500; color: var(--ink); }
.form input, .form textarea { width: 100%; padding: 10px 12px; border: 1px solid var(--line); border-radius: 8px; background: var(--bg); color: var(--ink); font: 14.5px var(--font-body); }
.form input:focus, .form textarea:focus { outline: 2px solid color-mix(in srgb, var(--brand) 60%, transparent); outline-offset: 0; border-color: var(--brand); }
.form .hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.form .msg { margin: 0; font-size: 14px; font-weight: 500; }
.form .msg.ok { color: var(--tip); } .form .msg.err { color: var(--del); }
.form button[disabled] { opacity: .6; cursor: default; }

.foot { margin-top: 72px; padding-top: 22px; border-top: 1px solid var(--line); display: flex; flex-wrap: wrap; gap: 8px 20px; font-size: 13.5px; color: var(--faint); }
.foot a { color: var(--muted); }
.pager { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 56px; }
.pager a { display: block; padding: 14px 16px; border: 1px solid var(--line); border-radius: 10px; text-decoration: none; color: var(--ink); font-weight: 500; }
.pager a:hover { border-color: color-mix(in srgb, var(--brand) 50%, var(--line)); }
.pager a small { display: block; font-size: 12px; color: var(--faint); font-weight: 400; margin-bottom: 3px; }
.pager .next { text-align: right; grid-column: 2; }

/* ---------- responsive ---------- */
@media (max-width: 1240px) {
  .page { grid-template-columns: minmax(0, 760px); padding: 40px 40px 80px; }
  .toc { display: none; }
  .ep { grid-template-columns: minmax(0, 1fr); gap: 22px; padding: 36px 40px; }
  .ep-code { position: static; }
  .ref-intro, .ref-group-head { padding-left: 40px; padding-right: 40px; }
}
@media (max-width: 900px) {
  .frame { grid-template-columns: minmax(0, 1fr); }
  .side { position: fixed; top: var(--header); left: 0; bottom: 0; width: min(86vw, 320px); height: auto; z-index: 40; transform: translateX(-102%); transition: transform .2s ease; box-shadow: var(--shadow); }
  body.nav-open .side { transform: none; }
  body.nav-open::after { content: ""; position: fixed; inset: var(--header) 0 0 0; background: rgba(10,14,20,.35); z-index: 35; }
  .menu-btn { display: grid; margin-left: -8px; }
  .top { padding: 0 12px 0 16px; gap: 10px; }
  .top-links a.tl { display: none; }
  .search-btn { max-width: none; }
  .search-btn .grow, .search-btn kbd { display: none; }
  .search-btn { flex: 0 0 auto; width: 38px; padding: 0; justify-content: center; margin-left: auto; }
  .top-links { margin-left: 0; }
  .btn-brand { display: none; }
  .page { padding: 28px 16px 64px; }
  .ep { padding: 28px 16px; }
  .ref-intro, .ref-group-head { padding: 32px 16px 4px; }
  h1 { font-size: 32px; }
  .cards, .form .row, .pager { grid-template-columns: 1fr; }
  .pager .next { grid-column: auto; }
  h2 .anchor, h3 .anchor { display: none; }
}
@media (prefers-reduced-motion: reduce) { * { transition: none !important; scroll-behavior: auto !important; } }