:root{color-scheme:light dark;--bg:#fbfaf7;--fg:#242824;--muted:#626761;--line:#dedfd7;--accent:#315e4b}
@media(prefers-color-scheme:dark){:root{--bg:#171b18;--fg:#e8ede7;--muted:#adb6ad;--line:#354037;--accent:#a6cfb4}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--fg);font:17px/1.65 system-ui,-apple-system,"Segoe UI",sans-serif}
header,main,footer{max-width:42rem;margin:0 auto;padding:0 22px}
header{display:flex;justify-content:space-between;gap:20px;padding-top:28px;padding-bottom:18px;border-bottom:1px solid var(--line)}
a{color:var(--accent);text-underline-offset:.18em}
.brand{font-weight:700;text-decoration:none;font-size:1.15rem}
h1{font-size:clamp(1.9rem,6vw,2.5rem);line-height:1.15;letter-spacing:-.025em;margin:2.5rem 0 1.2rem}
h2{font-size:1.15rem;margin:2rem 0 .6rem}
p{margin:.8rem 0}
.lede{color:var(--muted);font-size:1.12rem}
li{margin:.7rem 0}
ul{padding-left:1.3rem}
footer{display:flex;flex-wrap:wrap;gap:24px;border-top:1px solid var(--line);margin-top:3rem;padding-top:18px;padding-bottom:32px;font-size:.9rem}