:root{--fg:#111;--bg:#fff;--link:#0b3d91}
*{box-sizing:border-box}
body{margin:0;font:1.125rem/1.6 system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;color:var(--fg);background:var(--bg)}
header,main,footer{max-width:46rem;margin:0 auto;padding:1rem}
.brand{font-size:1.5rem;font-weight:700;margin:.5rem 0}
nav ul{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:.25rem .5rem}
nav a{display:inline-block;padding:.5rem .75rem;min-height:2.75rem;line-height:1.75rem}
a{color:var(--link);text-underline-offset:.15em}
a[aria-current="page"]{font-weight:700}
a:focus-visible{outline:3px solid #000;outline-offset:2px;box-shadow:0 0 0 5px #ffd400}
.skip{position:absolute;left:-999px;top:0;background:#fff;color:#0b3d91;padding:.75rem 1rem;z-index:10}
.skip:focus{left:0}
h1{font-size:2rem;line-height:1.25}
h2{font-size:1.5rem;margin-top:2rem}
h3{font-size:1.25rem}
footer{border-top:1px solid #767676;margin-top:2rem}
@media (prefers-color-scheme:dark){
:root{--fg:#f2f2f2;--bg:#121212;--link:#9ec2ff}
a:focus-visible{outline-color:#fff}
}