:root{--bg:#fbfaf7;--fg:#1d1d1b;--muted:#5f5d57;--link:#2a5d8f;--line:#e4e1d9}
@media (prefers-color-scheme:dark){:root{--bg:#141412;--fg:#ecebe6;--muted:#a3a19a;--link:#8fbcea;--line:#2c2b27}}
*{box-sizing:border-box}
html,body{margin:0;background:var(--bg);color:var(--fg)}
body{font:17px/1.6 ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}
main{max-width:640px;margin:0 auto;padding:48px 16px 24px}
h1{font-size:30px;line-height:1.2;margin:0 0 12px}
h2{font-size:18px;margin:32px 0 6px}
p,ul{margin:0 0 12px}
ul{padding-left:20px}
.lede{color:var(--muted);font-size:18px}
a{color:var(--link)}
code{font:14px ui-monospace,Menlo,monospace;background:var(--line);padding:1px 5px;border-radius:4px}
footer{max-width:640px;margin:0 auto;padding:24px 16px 48px;color:var(--muted);font-size:14px;border-top:1px solid var(--line)}