:root{color-scheme:light dark;--bg:#fff;--fg:#1a1a1a;--muted:#595959;--line:#d9d9d9;--link:#0b57d0;--accent:#0b57d0}
@media (prefers-color-scheme:dark){:root{--bg:#121212;--fg:#ececec;--muted:#b0b0b0;--line:#333;--link:#8ab4f8;--accent:#8ab4f8}}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--fg);font:1rem/1.6 system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif}
a{color:var(--link);text-underline-offset:.15em}
a:focus-visible{outline:3px solid var(--accent);outline-offset:2px;border-radius:2px}
.skip{position:absolute;left:-999px;top:0;background:var(--bg);color:var(--fg);padding:.75rem 1rem;z-index:1}
.skip:focus{left:0}
header,main,footer{max-width:42rem;margin:0 auto;padding:0 1rem}
header{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:.5rem 1rem;padding-top:1rem;padding-bottom:1rem;border-bottom:1px solid var(--line)}
nav ul{display:flex;flex-wrap:wrap;gap:.25rem 1.25rem;list-style:none;margin:0;padding:0}
nav a{display:inline-block;padding:.5rem 0;min-height:24px}
nav a[aria-current=page]{color:var(--fg);font-weight:600;text-decoration:none}
main{padding-top:2rem;padding-bottom:3rem}
h1{font-size:2rem;line-height:1.2;margin:0 0 1rem}
h2{font-size:1.25rem;line-height:1.3;margin:2rem 0 .5rem}
.lead{font-size:1.25rem}
.example{font-size:1.25rem;padding:1rem;border:1px solid var(--line);border-radius:.5rem}
.meta,.status,footer{color:var(--muted)}
li{margin:.25rem 0}
footer{padding-top:1rem;padding-bottom:2rem;border-top:1px solid var(--line);font-size:.875rem}