html{-webkit-text-size-adjust:100%}
body{margin:0;background:#fff;color:#1d1d1f;font:16px/1.6 system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif}
header,main,footer{max-width:42rem;margin:0 auto;padding:0 1rem}
header{border-bottom:1px solid #ddd;padding-top:1rem}
.site{font-weight:600;margin:0 0 .75rem}
main{padding-top:1rem;padding-bottom:2rem}
h1{font-size:1.6rem;line-height:1.25;margin:1rem 0}
.effective{color:#555}
a{color:#0b57d0}
footer{border-top:1px solid #ddd;padding-top:1rem;padding-bottom:2rem;font-size:.9rem;color:#444}
footer nav a{display:inline-block;margin:0 .9rem .4rem 0}
@media (prefers-color-scheme:dark){body{background:#111;color:#eee}header,footer{border-color:#333}footer{color:#bbb}.effective{color:#aaa}a{color:#8ab4f8}}