:root{color-scheme:light dark;--bg:#f5f8fa;--surface:#fff;--text:#122333;--muted:#455b6c;--accent:#066653;--line:#c8d6de;--tint:#eaf7f2}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:system-ui,-apple-system,"Segoe UI",sans-serif;line-height:1.7}header,main,footer{width:min(100% - 40px,960px);margin-inline:auto}header{padding-block:24px;display:flex;gap:24px;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line)}.brand{font-size:1.15rem;font-weight:700}.brand span{color:var(--accent);margin-right:8px}.brand strong{font-weight:500}nav{display:flex;flex-wrap:wrap;gap:8px}a{color:var(--accent);text-underline-offset:4px}nav a{padding:8px 12px;text-decoration:none;border-radius:8px}nav a[aria-current]{background:var(--tint);font-weight:700}a:hover{text-decoration:underline}a:focus-visible{outline:3px solid var(--accent);outline-offset:4px}.skip{position:absolute;top:8px;left:8px;padding:8px;background:var(--surface);transform:translateY(-150%)}.skip:focus{transform:none}main{padding-block:40px 24px;outline:none}.eyebrow{color:var(--accent);font-weight:700;letter-spacing:.04em;font-size:.85rem}h1{font-size:clamp(2rem,5vw,3rem);line-height:1.15;max-width:760px;margin:12px 0 24px}h2{font-size:1.3rem;line-height:1.4;margin-top:0}.lead{font-size:1.15rem;color:var(--muted);max-width:760px}section{margin:24px 0;padding:24px;background:var(--surface);border:1px solid var(--line);border-radius:16px}section.notice{background:var(--tint)}p:last-child{margin-bottom:0}li+li{margin-top:12px}code{font-family:ui-monospace,monospace;font-size:.9em;overflow-wrap:anywhere}footer{padding-block:24px 36px;color:var(--muted);border-top:1px solid var(--line);font-size:.9rem}footer p{margin:4px 0}@media(max-width:620px){header{align-items:flex-start;flex-direction:column;gap:12px}main{padding-top:24px}section{padding:20px}nav a{padding:6px 10px}}@media(prefers-color-scheme:dark){:root{--bg:#111b24;--surface:#172630;--text:#ecf3f7;--muted:#bed0db;--accent:#50d2b0;--line:#3d5665;--tint:#15372f}}