:root{--bg:#fbfaf7;--fg:#1d1d1b;--muted:#5c5b57;--line:#e3e0d8;--accent:#2f5d50}
@media (prefers-color-scheme:dark){:root{--bg:#161615;--fg:#ecebe6;--muted:#a5a39c;--line:#2e2d2a;--accent:#8cc2b0}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--fg);font:17px/1.6 system-ui,-apple-system,"Segoe UI",sans-serif}
main,header,footer{max-width:42rem;margin:0 auto;padding:0 16px}
header{display:flex;justify-content:space-between;align-items:baseline;padding-top:28px;padding-bottom:12px;border-bottom:1px solid var(--line)}
.brand{font-weight:700;font-size:1.15rem;color:var(--fg);text-decoration:none;letter-spacing:-.01em}
nav a{margin-left:1rem}
a{color:var(--accent)}
h1{font-size:2rem;line-height:1.2;letter-spacing:-.02em;margin:2.5rem 0 1rem}
h2{font-size:1.15rem;margin:2.2rem 0 .5rem}
.lede{font-size:1.15rem;color:var(--muted)}
footer{margin-top:3rem;padding-top:16px;padding-bottom:40px;border-top:1px solid var(--line);color:var(--muted);font-size:.9rem}
footer a{margin-right:1rem}