:root{color-scheme:light;--ink:#14263d;--muted:#536579;--accent:#1461a8;--line:#dce4ed;--bg:#f5f8fb}*{box-sizing:border-box}body{margin:0;font:16px/1.65 system-ui,-apple-system,Segoe UI,Arial,sans-serif;color:var(--ink);background:var(--bg)}header{background:#fff;border-bottom:1px solid var(--line)}nav,main,footer{max-width:880px;margin:auto;padding:20px 24px}nav{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;align-items:center}a{color:var(--accent)}nav a{text-decoration:none}main{margin:32px auto;background:white;border:1px solid var(--line);border-radius:12px;padding:28px 32px}h1{line-height:1.25;font-size:2rem}h2{font-size:1.2rem;margin-top:28px}p,li{max-width:76ch}small,footer,.sub{color:var(--muted)}footer{padding-top:0;padding-bottom:40px}footer a{margin-right:18px}@media(max-width:650px){main{margin:14px 10px;padding:20px}h1{font-size:1.55rem}}