:root {
  --bg: #ffffff;
  --bg-soft: #f7f7f8;
  --fg: #0d0d0d;
  --fg-muted: #5d5d5d;
  --border: #e5e5e5;
  --accent: #10a37f;
  --accent-soft: #e6f6f1;
  --code-bg: #0f1115;
  --code-fg: #e6e6e6;
  --inline-bg: #f1f1f2;
  --warn-bg: #fff7e6;
  --warn-border: #f5d58a;
  --get: #1d6fe0;
  --post: #0f8a5f;
  --del: #d1334a;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}
:root[data-theme="dark"] {
  --bg: #0f1012;
  --bg-soft: #17181b;
  --fg: #ececec;
  --fg-muted: #9a9a9f;
  --border: #2a2b2f;
  --accent: #19c37d;
  --accent-soft: #12332a;
  --code-bg: #0a0b0d;
  --inline-bg: #212226;
  --warn-bg: #2b2412;
  --warn-border: #5c4a1c;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0f1012; --bg-soft: #17181b; --fg: #ececec; --fg-muted: #9a9a9f;
    --border: #2a2b2f; --accent: #19c37d; --accent-soft: #12332a;
    --code-bg: #0a0b0d; --inline-bg: #212226; --warn-bg: #2b2412; --warn-border: #5c4a1c;
  }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 76px; }
body {
  margin: 0; background: var(--bg); color: var(--fg);
  font: 16px/1.65 var(--font); -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* --- topbar --- */
.topbar {
  position: sticky; top: 0; z-index: 20; height: 60px;
  display: flex; align-items: center; gap: 16px; padding: 0 20px;
  background: color-mix(in srgb, var(--bg) 92%, transparent);
  backdrop-filter: blur(8px); border-bottom: 1px solid var(--border);
}
.brand { display: flex; align-items: center; gap: 10px; color: var(--fg); font-weight: 500; }
.brand:hover { text-decoration: none; }
.brand b { color: var(--accent); font-weight: 600; }
.logo {
  display: grid; place-items: center; width: 28px; height: 28px; border-radius: 8px;
  background: var(--accent); color: #fff; font-size: 12px; font-weight: 700;
}
.search-btn {
  flex: 0 1 340px; margin-left: 24px; display: flex; justify-content: space-between; align-items: center;
  padding: 8px 12px; border: 1px solid var(--border); border-radius: 10px;
  background: var(--bg-soft); color: var(--fg-muted); font: inherit; font-size: 14px; cursor: pointer;
}
kbd {
  font: 12px var(--mono); padding: 1px 6px; border: 1px solid var(--border);
  border-radius: 5px; background: var(--bg);
}
.top-links { margin-left: auto; display: flex; gap: 20px; font-size: 14px; }
.top-links a { color: var(--fg-muted); }
.top-links a:hover { color: var(--fg); text-decoration: none; }
.icon-btn {
  border: 0; background: transparent; color: var(--fg-muted); font-size: 18px;
  cursor: pointer; padding: 6px 8px; border-radius: 8px;
}
.icon-btn:hover { background: var(--bg-soft); }
.menu-btn { display: none; }

/* --- shell --- */
.shell {
  display: grid; grid-template-columns: 264px minmax(0, 1fr) 220px;
  max-width: 1360px; margin: 0 auto;
}
.sidebar {
  position: sticky; top: 60px; align-self: start; height: calc(100vh - 60px);
  overflow-y: auto; padding: 24px 12px 40px 20px; border-right: 1px solid var(--border);
}
.nav-group { margin-bottom: 22px; }
.nav-title {
  font-size: 12px; font-weight: 600; letter-spacing: .04em; text-transform: uppercase;
  color: var(--fg-muted); padding: 0 10px 6px;
}
.sidebar a {
  display: block; padding: 5px 10px; border-radius: 8px; color: var(--fg); font-size: 14.5px;
}
.sidebar a:hover { background: var(--bg-soft); text-decoration: none; }
.sidebar a.active { background: var(--accent-soft); color: var(--accent); font-weight: 500; }

.content { padding: 36px 48px 80px; min-width: 0; }
.content article { max-width: 760px; }
.content article.wide { max-width: none; }

.toc {
  position: sticky; top: 60px; align-self: start; max-height: calc(100vh - 60px);
  overflow-y: auto; padding: 36px 16px 24px 8px; font-size: 13.5px;
}
.toc-title { font-weight: 600; margin-bottom: 8px; font-size: 13px; color: var(--fg-muted); }
.toc a { display: block; padding: 3px 0 3px 12px; color: var(--fg-muted); border-left: 2px solid var(--border); }
.toc a:hover { color: var(--fg); text-decoration: none; }
.toc a.on { color: var(--accent); border-left-color: var(--accent); }
.toc a.h3 { padding-left: 24px; }

/* --- typography --- */
h1 { font-size: 34px; line-height: 1.2; margin: 0 0 12px; letter-spacing: -.02em; }
h2 { font-size: 24px; margin: 52px 0 12px; letter-spacing: -.01em; padding-top: 8px; }
h3 { font-size: 18px; margin: 32px 0 8px; }
p { margin: 0 0 16px; }
.lead { font-size: 18px; color: var(--fg-muted); margin-bottom: 28px; }
ul, ol { padding-left: 22px; margin: 0 0 16px; }
li { margin: 4px 0; }
code {
  font: 0.88em var(--mono); background: var(--inline-bg);
  padding: 2px 6px; border-radius: 6px;
}
hr { border: 0; border-top: 1px solid var(--border); margin: 36px 0; }

table { width: 100%; border-collapse: collapse; margin: 0 0 24px; font-size: 14.5px; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--border); vertical-align: top; }
th { font-weight: 600; color: var(--fg-muted); font-size: 13px; }
td code { white-space: nowrap; }

.callout {
  border: 1px solid var(--border); background: var(--bg-soft);
  border-radius: 12px; padding: 14px 18px; margin: 0 0 20px;
}
.callout.warn { background: var(--warn-bg); border-color: var(--warn-border); }
.callout p:last-child { margin: 0; }
.callout > b:first-child { display: block; margin-bottom: 2px; }

.beta-banner {
  background: var(--warn-bg); border: 1px solid var(--warn-border);
  border-radius: 10px; padding: 10px 14px; font-size: 14px; margin-bottom: 28px; max-width: 760px;
}

.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 14px; margin: 20px 0 28px; }
.card {
  display: block; border: 1px solid var(--border); border-radius: 14px; padding: 18px;
  color: var(--fg); transition: border-color .15s, transform .15s;
}
.card:hover { border-color: var(--accent); text-decoration: none; transform: translateY(-1px); }
.card b { display: block; margin-bottom: 4px; }
.card span { color: var(--fg-muted); font-size: 14px; }
.price { color: var(--accent); font-weight: 600; }

/* --- method badges, params --- */
.method {
  display: inline-block; font: 600 12px var(--mono); padding: 3px 8px; border-radius: 6px;
  color: #fff; margin-right: 8px; vertical-align: 2px;
}
.method.get { background: var(--get); }
.method.post { background: var(--post); }
.method.delete { background: var(--del); }
.endpoint-path { font: 500 15px var(--mono); }

.params { border-top: 1px solid var(--border); margin: 8px 0 24px; }
.param { padding: 12px 0; border-bottom: 1px solid var(--border); }
.param-head { display: flex; gap: 10px; align-items: baseline; flex-wrap: wrap; }
.param-name { font: 600 14px var(--mono); }
.param-type { font-size: 12.5px; color: var(--fg-muted); }
.param-req { font-size: 12px; color: #d1334a; }
.param-opt { font-size: 12px; color: var(--fg-muted); }
.param p { margin: 4px 0 0; font-size: 14.5px; color: var(--fg-muted); }

/* --- two-column reference layout --- */
.ref { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 36px; margin: 20px 0 40px; }
.ref + .ref { border-top: 1px solid var(--border); padding-top: 36px; }
.ref-code { position: sticky; top: 84px; align-self: start; }
.content:has(.ref) article { max-width: none; }
.content:has(.ref) article > :not(.ref) { max-width: 760px; }
.content:has(.ref) .beta-banner { max-width: none; }

/* --- code --- */
pre {
  background: var(--code-bg); color: var(--code-fg); border-radius: 12px;
  padding: 16px 18px; overflow-x: auto; margin: 0 0 20px;
  font: 13.5px/1.6 var(--mono);
}
pre code { background: none; padding: 0; font-size: inherit; color: inherit; }
.codebox { position: relative; margin: 0 0 20px; border-radius: 12px; overflow: hidden; background: var(--code-bg); }
.codebox pre { margin: 0; border-radius: 0; }
.codebox-bar {
  display: flex; align-items: center; gap: 4px; padding: 6px 8px 0 10px;
  background: #16181d; border-bottom: 1px solid #23262d;
}
.codebox-tab {
  border: 0; background: transparent; color: #8b8f98; font: 500 12.5px var(--font);
  padding: 7px 10px; cursor: pointer; border-bottom: 2px solid transparent;
}
.codebox-tab.on { color: #fff; border-bottom-color: var(--accent); }
.codebox-label { color: #8b8f98; font: 12.5px var(--font); padding: 7px 4px; }
.copy-btn {
  margin-left: auto; border: 1px solid #2d3139; background: transparent; color: #aab;
  font: 12px var(--font); padding: 3px 9px; border-radius: 6px; cursor: pointer;
}
.copy-btn:hover { color: #fff; border-color: #444; }
.tok-k { color: #ff7b72; } .tok-s { color: #a5d6ff; } .tok-c { color: #8b949e; }
.tok-n { color: #79c0ff; } .tok-f { color: #d2a8ff; }

/* --- pager / footer --- */
.pager { display: flex; justify-content: space-between; gap: 16px; margin-top: 56px; max-width: 760px; }
.pager a {
  display: flex; flex-direction: column; border: 1px solid var(--border); border-radius: 12px;
  padding: 12px 18px; color: var(--fg); min-width: 180px;
}
.pager a:hover { border-color: var(--accent); text-decoration: none; }
.pager small { color: var(--fg-muted); }
.pager-next { align-items: flex-end; margin-left: auto; }
.foot { margin-top: 48px; padding-top: 20px; border-top: 1px solid var(--border); color: var(--fg-muted); font-size: 14px; max-width: 760px; }

/* --- search modal --- */
.modal { position: fixed; inset: 0; z-index: 50; background: rgba(0,0,0,.45); display: flex; justify-content: center; padding-top: 12vh; }
.modal[hidden] { display: none; }
.modal-box { width: min(620px, 92vw); max-height: 70vh; overflow: auto; background: var(--bg); border: 1px solid var(--border); border-radius: 14px; padding: 12px; align-self: flex-start; }
#search-input { width: 100%; font: 16px var(--font); padding: 12px 14px; border: 1px solid var(--border); border-radius: 10px; background: var(--bg-soft); color: var(--fg); outline: none; }
#search-input:focus { border-color: var(--accent); }
.result { display: block; padding: 10px 12px; border-radius: 10px; color: var(--fg); margin-top: 4px; }
.result:hover, .result.sel { background: var(--bg-soft); text-decoration: none; }
.result small { color: var(--fg-muted); display: block; }
.result b { font-weight: 500; }

/* --- responsive --- */
@media (max-width: 1180px) {
  .shell { grid-template-columns: 250px minmax(0, 1fr); }
  .toc { display: none; }
}
@media (max-width: 1000px) {
  .ref { grid-template-columns: 1fr; gap: 12px; }
  .ref-code { position: static; }
}
@media (max-width: 800px) {
  .shell { grid-template-columns: minmax(0, 1fr); }
  .ref > * { min-width: 0; }
  .pager a { min-width: 0; flex: 1; }
  .pager { gap: 8px; }
  .menu-btn { display: block; }
  .sidebar {
    position: fixed; top: 60px; left: 0; bottom: 0; width: 280px; height: auto; z-index: 30;
    background: var(--bg); transform: translateX(-100%); transition: transform .2s;
  }
  .sidebar.open { transform: none; box-shadow: 0 0 40px rgba(0,0,0,.25); }
  .content { padding: 24px 16px 60px; }
  .top-links, .search-btn kbd, .search-btn span { display: none; }
  .search-btn { flex: 0 0 auto; margin-left: auto; padding: 8px 12px; }
  .search-btn::before { content: "⌕"; font-size: 16px; }
  .top-links { display: none; }
  h1 { font-size: 28px; }
  th, td { padding: 8px 6px; }
}