:root{color-scheme:light dark;--bg:#f6f7f9;--paper:#fff;--text:#202936;--muted:#586576;--line:#dce2e9;--accent:#1856ab;--badge:#eef3fa;--focus:#e0a000}*{box-sizing:border-box}html{font:17px/1.8 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;-webkit-text-size-adjust:100%}body{margin:0;background:var(--bg);color:var(--text);overflow-wrap:anywhere}header,main,footer{max-width:850px;margin:auto;padding:24px 28px}header{border-bottom:1px solid var(--line)}.top{display:flex;justify-content:space-between;align-items:center;gap:20px}.brand{font-weight:700;color:var(--text);text-decoration:none}nav{display:flex;gap:8px 24px;flex-wrap:wrap;margin-top:20px}nav a,.top>a{min-height:44px;display:inline-flex;align-items:center}main{padding-top:40px;padding-bottom:48px}h1{font-size:clamp(1.8rem,5.5vw,2.5rem);line-height:1.25;letter-spacing:-.025em;margin:20px 0 12px}h2{font-size:1.16rem;line-height:1.4;margin:0 0 14px}p{margin:0 0 16px}section{margin-top:30px;padding-top:26px;border-top:1px solid var(--line)}section p:last-child{margin-bottom:0}a{color:var(--accent);text-underline-offset:4px}a:focus-visible{outline:3px solid var(--focus);outline-offset:4px;border-radius:3px}.badge{display:inline-block;background:var(--badge);color:var(--accent);padding:6px 12px;border-radius:8px;font-size:.85rem;font-weight:600}.meta,footer{color:var(--muted);font-size:.88rem}.lead{font-size:1.25rem;color:var(--muted)}footer{border-top:1px solid var(--line);padding-bottom:40px}.languages{display:grid;grid-template-columns:1fr 1fr;gap:24px}.skip{position:absolute;top:8px;left:8px;padding:8px;background:var(--paper);transform:translateY(-200%)}.skip:focus{transform:translateY(0)}@media(max-width:480px){header,main,footer{padding-left:20px;padding-right:20px}.top{align-items:flex-start}.brand{max-width:72%}nav{column-gap:18px}.languages{grid-template-columns:1fr;gap:0}}@media(prefers-color-scheme:dark){:root{--bg:#15191f;--paper:#20262e;--text:#e7ecf2;--muted:#b0bdce;--line:#384351;--accent:#a2c8ff;--badge:#223247}}@media print{body{background:#fff;color:#000}nav,.skip{display:none}a{color:inherit}header,main,footer{max-width:none;padding:12px}section{break-inside:avoid}}