:root{color-scheme:light;--ink:#182432;--muted:#546170;--line:#dce3e9;--accent:#245d72}*{box-sizing:border-box}body{margin:0;background:#f5f7f8;color:var(--ink);font:17px/1.65 system-ui,-apple-system,"Segoe UI",sans-serif}header,main,footer{max-width:860px;margin:auto;padding:28px}header{display:flex;align-items:center;justify-content:space-between;gap:24px;border-bottom:1px solid var(--line)}.brand{font-weight:750;text-decoration:none;color:var(--ink);font-size:22px}nav{display:flex;flex-wrap:wrap;gap:16px;font-size:14px}a{color:var(--accent);text-underline-offset:4px}main{min-height:55vh;padding-top:46px;padding-bottom:48px}h1{font-size:clamp(30px,5vw,44px);line-height:1.2;margin:0 0 24px;letter-spacing:-.025em}h2{font-size:23px;margin-top:34px}p{margin:14px 0}.lead{font-size:21px;line-height:1.5;color:var(--muted)}.note{margin:28px 0;padding:20px 24px;border-left:3px solid var(--accent);background:#eaf1f4}footer{border-top:1px solid var(--line);color:var(--muted);font-size:14px}li{margin:8px 0}@media(max-width:600px){header{align-items:flex-start;flex-direction:column;gap:12px}header,main,footer{padding-left:20px;padding-right:20px}}