:root {
  --accent: #3662d8;
  --wash: #eef3fb;
  --text: #18202b;
  --muted: #687384;
  --line: #dfe5ec;
  font-family: Inter, ui-sans-serif, system-ui, sans-serif;
}
* { box-sizing: border-box; }
body { margin: 0; color: var(--text); background: #fff; }
a { color: inherit; text-decoration: none; }
.docs-bar { position: sticky; top: 0; z-index: 2; height: 66px; display: flex; align-items: center; justify-content: space-between; padding: 0 30px; border-bottom: 1px solid var(--line); background: rgba(255,255,255,.96); }
.docs-logo { color: var(--accent); font-weight: 800; letter-spacing: -.025em; }
.search { width: min(360px, 44vw); padding: 10px 12px; border: 1px solid var(--line); border-radius: 8px; color: var(--muted); font-size: 13px; }
kbd { float: right; padding: 0 6px; border: 1px solid var(--line); border-radius: 4px; background: #f7f8fa; }
.docs-layout { display: grid; grid-template-columns: 240px minmax(0, 820px); gap: 72px; width: min(1180px, calc(100% - 48px)); margin: 0 auto; }
aside { position: sticky; top: 66px; align-self: start; height: calc(100vh - 66px); padding: 46px 18px 30px 0; border-right: 1px solid var(--line); }
aside p { margin: 24px 0 8px; color: var(--muted); font-size: 11px; font-weight: 750; letter-spacing: .1em; text-transform: uppercase; }
aside p:first-child { margin-top: 0; }
aside a { display: block; margin: 3px 12px 3px 0; padding: 8px 10px; border-radius: 6px; color: var(--muted); font-size: 14px; }
aside a.active { color: var(--accent); background: var(--wash); font-weight: 700; }
main { padding: 70px 0 100px; }
.breadcrumbs { color: var(--muted); font-size: 13px; }
.label { margin: 56px 0 14px; color: var(--accent); font-size: 12px; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
h1 { max-width: 760px; margin: 0; font-size: clamp(38px, 5.5vw, 62px); letter-spacing: -.045em; line-height: 1.04; }
.lead { max-width: 680px; margin: 24px 0 0; color: var(--muted); font-size: 20px; line-height: 1.6; }
.topic-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; margin-top: 58px; }
article { padding: 24px; border: 1px solid var(--line); border-radius: 10px; }
article span { color: var(--accent); font-size: 12px; font-weight: 700; }
h2 { margin: 28px 0 8px; font-size: 22px; }
article p { margin: 0; color: var(--muted); line-height: 1.55; }
.docs-note { margin-top: 54px; padding: 20px 22px; border-left: 4px solid var(--accent); background: var(--wash); color: var(--muted); line-height: 1.6; }
.docs-note strong { color: var(--text); }
@media (max-width: 760px) {
  .docs-bar { padding: 0 16px; }
  .search { display: none; }
  .docs-layout { display: block; width: min(100% - 30px, 620px); }
  aside { display: none; }
  main { padding: 48px 0 70px; }
  .topic-grid { grid-template-columns: 1fr; }
}