:root {
  --bg: #ffffff;
  --surface: #f5f5f5;
  --fg: #111111;
  --muted: #949494;
  --border: #dedede;
  --accent: #1677ff;
  --header-h: 64px;
  --sidebar-w: 248px;
  --toc-w: 208px;
  color-scheme: light;
}

[data-theme="dark"] {
  --bg: #111111;
  --surface: #111111;
  --fg: #ffffff;
  --muted: #949494;
  --border: #949494;
  --accent: #1677ff;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: Inter, system-ui, -apple-system, "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  font-size: 15px;
  line-height: 1.6;
  text-rendering: optimizeLegibility;
}
button, input, a { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
a { color: inherit; text-decoration: none; }
a:hover { color: var(--accent); }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }

.site-header {
  position: sticky;
  z-index: 40;
  top: 0;
  height: var(--header-h);
  display: grid;
  grid-template-columns: minmax(260px, 1fr) auto minmax(300px, 1fr);
  align-items: center;
  gap: 24px;
  padding: 0 24px;
  border-bottom: 1px solid var(--border);
  background: var(--bg);
}
.brand { display: flex; align-items: center; gap: 12px; min-width: 0; font-weight: 650; }
.brand-name { white-space: nowrap; }
.brand-divider { width: 1px; height: 20px; background: var(--border); }
.brand-product { color: var(--muted); white-space: nowrap; }
.main-nav { display: flex; gap: 4px; align-items: center; }
.nav-link, .icon-button, .header-link, .search-trigger, .theme-select {
  min-height: 40px;
  border-radius: 8px;
}
.nav-link, .header-link { display: inline-flex; align-items: center; padding: 0 12px; font-size: 14px; font-weight: 550; white-space: nowrap; }
.nav-link[aria-current="page"] { background: var(--surface); }
.header-actions { display: flex; justify-content: flex-end; align-items: center; gap: 8px; }
.search-trigger {
  display: flex;
  width: min(260px, 22vw);
  align-items: center;
  gap: 10px;
  padding: 0 10px 0 12px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--fg);
}
.search-trigger span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
kbd { margin-left: auto; padding: 2px 6px; border: 1px solid var(--border); border-radius: 6px; color: var(--muted); font-family: inherit; font-size: 11px; background: var(--bg); }
.icon-button { width: 40px; border: 1px solid var(--border); background: var(--bg); color: var(--fg); }
.menu-button { display: none; }
.theme-select { border: 1px solid var(--border); padding: 0 8px; background: var(--bg); color: var(--fg); }

.page-shell { max-width: 1440px; margin: 0 auto; padding: 0 32px; }
.home-main { max-width: 1120px; margin: 0 auto; padding: 80px 32px 96px; }
.eyebrow { margin: 0 0 12px; color: var(--muted); font-size: 12px; font-weight: 650; letter-spacing: .08em; text-transform: uppercase; }
.home-hero { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(360px, .8fr); gap: 64px; align-items: end; padding-bottom: 64px; border-bottom: 1px solid var(--border); }
h1, h2, h3 { margin-top: 0; letter-spacing: -.025em; line-height: 1.2; }
h1 { max-width: 780px; margin-bottom: 20px; font-size: clamp(40px, 5vw, 64px); letter-spacing: -.045em; }
h2 { margin-bottom: 16px; font-size: clamp(24px, 3vw, 32px); }
h3 { margin-bottom: 8px; font-size: 18px; }
.lede { max-width: 700px; margin: 0; color: var(--muted); font-size: clamp(18px, 2vw, 21px); line-height: 1.55; }
.actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 32px; }
.button { min-height: 44px; display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 0 16px; border: 1px solid var(--border); border-radius: 8px; background: var(--bg); font-weight: 600; }
.button-primary { border-color: var(--fg); background: var(--fg); color: var(--bg); }
.button-primary:hover { border-color: var(--accent); background: var(--accent); color: #ffffff; }
.button:hover { border-color: var(--accent); color: var(--accent); }
.button-primary:hover { border-color: var(--accent); background: var(--accent); color: #ffffff; }
.cli-panel { border: 1px solid var(--border); border-radius: 8px; overflow: hidden; background: var(--fg); color: var(--bg); }
.code-head { min-height: 44px; display: flex; align-items: center; justify-content: space-between; padding: 0 14px; border-bottom: 1px solid var(--muted); font-size: 12px; color: var(--muted); }
.copy-button { min-height: 32px; border: 1px solid var(--muted); border-radius: 6px; background: var(--fg); color: var(--bg); padding: 0 10px; }
.copy-button:hover { border-color: var(--accent); color: #ffffff; }
pre { margin: 0; overflow-x: auto; padding: 20px; font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace; font-size: 13px; line-height: 1.8; tab-size: 2; }
.prompt { color: var(--accent); }
.code-comment { color: var(--muted); }

.section-head { display: flex; align-items: end; justify-content: space-between; gap: 24px; margin: 64px 0 24px; }
.section-head p { max-width: 560px; margin: 0; color: var(--muted); }
.entry-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); border-top: 1px solid var(--border); }
.entry { min-height: 170px; padding: 24px 24px 22px 0; border-bottom: 1px solid var(--border); display: flex; flex-direction: column; align-items: flex-start; }
.entry:nth-child(odd) { padding-right: 32px; border-right: 1px solid var(--border); }
.entry:nth-child(even) { padding-left: 32px; }
.entry-number { margin-bottom: 24px; color: var(--muted); font-family: "SFMono-Regular", Consolas, monospace; font-size: 12px; }
.entry p { max-width: 440px; margin: 0 0 20px; color: var(--muted); }
.entry a { margin-top: auto; font-weight: 600; }

.docs-layout { display: grid; grid-template-columns: var(--sidebar-w) minmax(0, 760px) var(--toc-w); justify-content: center; gap: 40px; min-height: calc(100vh - var(--header-h)); }
.sidebar, .toc { position: sticky; top: var(--header-h); height: calc(100vh - var(--header-h)); overflow-y: auto; padding: 28px 0 48px; }
.sidebar { border-right: 1px solid var(--border); padding-right: 24px; }
.sidebar-section { margin-bottom: 24px; }
.sidebar-title { margin: 0 0 6px; font-size: 12px; font-weight: 650; text-transform: uppercase; letter-spacing: .06em; }
.sidebar a { display: block; min-height: 34px; padding: 6px 10px; border-radius: 6px; color: var(--muted); font-size: 13px; line-height: 22px; }
.sidebar a:hover { background: var(--surface); color: var(--fg); }
.sidebar a[aria-current="page"] { background: var(--surface); color: var(--fg); font-weight: 600; }
.doc-main { min-width: 0; padding: 56px 0 96px; }
.breadcrumbs { display: flex; gap: 8px; margin-bottom: 24px; color: var(--muted); font-size: 13px; }
.doc-main h1 { max-width: 720px; font-size: clamp(36px, 4vw, 48px); }
.doc-main .lede { font-size: 18px; }
.doc-main section { scroll-margin-top: 88px; padding-top: 48px; }
.doc-main section + section { margin-top: 8px; border-top: 1px solid var(--border); }
.doc-main p, .doc-main li { max-width: 720px; }
.doc-main p { color: var(--fg); }
.doc-main .muted { color: var(--muted); }
.doc-main code:not(pre code) { padding: 2px 5px; border-radius: 4px; background: var(--surface); font-family: "SFMono-Regular", Consolas, monospace; font-size: .9em; }
.note, .warning { margin: 24px 0; padding: 16px 18px; border: 1px solid var(--border); border-left: 3px solid var(--accent); border-radius: 8px; background: var(--surface); }
.note strong, .warning strong { display: block; margin-bottom: 4px; }
.warning { border-left-color: var(--fg); }
.code-block { margin: 24px 0; border: 1px solid var(--border); border-radius: 8px; overflow: hidden; background: var(--fg); color: var(--bg); }
.doc-table { width: 100%; border-collapse: collapse; margin: 24px 0; font-size: 14px; }
.doc-table th, .doc-table td { padding: 12px 14px; border: 1px solid var(--border); text-align: left; vertical-align: top; }
.doc-table th { background: var(--surface); }
.toc { padding-left: 8px; }
.toc-title { margin: 0 0 12px; font-size: 12px; font-weight: 650; text-transform: uppercase; letter-spacing: .06em; }
.toc a { display: block; padding: 6px 0 6px 12px; border-left: 1px solid var(--border); color: var(--muted); font-size: 13px; }
.toc a:hover, .toc a.active { border-left-color: var(--accent); color: var(--fg); }
.article-nav { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 56px; }
.article-nav a { padding: 16px; border: 1px solid var(--border); border-radius: 8px; }
.article-nav small { display: block; color: var(--muted); }
.helpful { margin-top: 48px; padding-top: 32px; border-top: 1px solid var(--border); display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.helpful-actions { display: flex; gap: 8px; }

.search-page { max-width: 940px; margin: 0 auto; padding: 64px 32px 96px; }
.search-input-wrap { position: relative; margin: 28px 0 18px; }
.search-input { width: 100%; height: 56px; padding: 0 108px 0 18px; border: 1px solid var(--fg); border-radius: 8px; background: var(--bg); color: var(--fg); font-size: 17px; }
.search-input-wrap kbd { position: absolute; right: 14px; top: 16px; }
.suggestions { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 36px; }
.suggestion { min-height: 36px; padding: 0 12px; border: 1px solid var(--border); border-radius: 8px; background: var(--bg); color: var(--fg); }
.suggestion:hover { border-color: var(--accent); color: var(--accent); }
.result-count { margin: 0 0 12px; color: var(--muted); font-size: 13px; }
.results { border-top: 1px solid var(--border); }
.result { display: block; padding: 20px 8px; border-bottom: 1px solid var(--border); }
.result:hover, .result[aria-selected="true"] { background: var(--surface); color: var(--fg); }
.result-meta { color: var(--muted); font-size: 12px; }
.result h2 { margin: 4px 0; font-size: 18px; }
.result p { margin: 0; color: var(--muted); }
.empty-state { display: none; padding: 40px 0; color: var(--muted); }

.mobile-demo-frame { width: min(390px, 100%); margin: 40px auto 80px; border: 1px solid var(--border); border-radius: 8px; overflow: hidden; background: var(--bg); }
.mobile-demo-header { height: 56px; display: flex; align-items: center; justify-content: space-between; padding: 0 14px; border-bottom: 1px solid var(--border); }
.mobile-demo-content { padding: 28px 20px 48px; }
.mobile-demo-content h1 { font-size: 34px; }
.mobile-demo-links { margin-top: 32px; border-top: 1px solid var(--border); }
.mobile-demo-links a { display: flex; justify-content: space-between; padding: 16px 0; border-bottom: 1px solid var(--border); font-weight: 600; }

.search-dialog { width: min(720px, calc(100vw - 32px)); padding: 0; border: 1px solid var(--border); border-radius: 8px; background: var(--bg); color: var(--fg); }
.search-dialog::backdrop { background: #111111; opacity: .6; }
.dialog-head { display: flex; gap: 8px; padding: 12px; border-bottom: 1px solid var(--border); }
.dialog-head input { flex: 1; min-width: 0; height: 44px; padding: 0 12px; border: 1px solid var(--border); border-radius: 6px; background: var(--bg); color: var(--fg); }
.dialog-head .icon-button { width: auto; padding: 0 12px; }
.dialog-body { max-height: 60vh; overflow-y: auto; padding: 8px; }
.dialog-result { display: block; padding: 12px; border-radius: 6px; }
.dialog-result:hover, .dialog-result.active { background: var(--surface); color: var(--fg); }
.dialog-result small { display: block; color: var(--muted); }
.dialog-foot { display: flex; gap: 16px; padding: 10px 14px; border-top: 1px solid var(--border); color: var(--muted); font-size: 12px; }
.drawer { position: fixed; z-index: 60; inset: var(--header-h) auto 0 0; width: min(320px, 88vw); padding: 20px; border-right: 1px solid var(--border); background: var(--bg); overflow-y: auto; transform: translateX(-105%); transition: transform 180ms ease-out; }
.drawer.open { transform: translateX(0); }
.drawer-scrim { position: fixed; z-index: 55; inset: var(--header-h) 0 0; border: 0; background: #111111; opacity: .6; display: none; }
.drawer-scrim.open { display: block; }
.drawer a { display: block; min-height: 44px; padding: 10px 8px; border-bottom: 1px solid var(--border); }

.footer { padding: 32px 0; border-top: 1px solid var(--border); color: var(--muted); font-size: 13px; }
.footer-inner { max-width: 1120px; margin: 0 auto; padding: 0 32px; display: flex; justify-content: space-between; gap: 20px; }

@media (max-width: 1180px) {
  .site-header { grid-template-columns: 1fr auto; }
  .main-nav { display: none; }
  .docs-layout { grid-template-columns: minmax(0, 760px) var(--toc-w); }
  .sidebar { display: none; }
  .menu-button { display: inline-block; }
}

@media (max-width: 820px) {
  .site-header { padding: 0 16px; }
  .brand-product, .header-link, .theme-select { display: none; }
  .search-trigger { width: 96px; justify-content: center; padding: 0 8px; }
  .search-trigger kbd { display: none; }
  .home-main { padding: 56px 24px 72px; }
  .home-hero { grid-template-columns: 1fr; gap: 40px; }
  .section-head { align-items: flex-start; flex-direction: column; }
  .docs-layout { display: block; padding: 0 24px; }
  .toc { display: none; }
  .doc-main { max-width: 760px; margin: 0 auto; padding-top: 40px; }
}

@media (max-width: 600px) {
  .site-header { gap: 8px; }
  .brand { gap: 8px; font-size: 14px; }
  .brand-name { max-width: 116px; overflow: hidden; text-overflow: ellipsis; }
  .header-actions { gap: 6px; }
  .search-trigger { width: 44px; padding: 0; }
  .search-trigger span { width: 0; overflow: hidden; }
  .search-trigger::before { content: "/"; font-weight: 650; }
  .home-main, .search-page { padding-left: 18px; padding-right: 18px; }
  .home-hero { padding-bottom: 48px; }
  h1 { font-size: 38px; }
  .actions { align-items: stretch; }
  .actions .button { flex: 1 1 100%; }
  .entry-list { grid-template-columns: 1fr; }
  .entry:nth-child(odd), .entry:nth-child(even) { padding: 22px 0; border-right: 0; }
  .section-head { align-items: flex-start; flex-direction: column; }
  .docs-layout { padding: 0 18px; }
  .doc-main { padding-top: 32px; }
  .doc-main h1 { font-size: 36px; }
  .article-nav { grid-template-columns: 1fr; }
  .helpful { align-items: flex-start; flex-direction: column; }
  .doc-table { display: block; overflow-x: auto; }
  pre { font-size: 12px; }
  .footer-inner { padding: 0 18px; flex-direction: column; }
}