body{font:18px/1.6 system-ui,sans-serif;max-width:42rem;margin:2rem auto;padding:0 1rem;color:#1a1a1a}
h1,h2{line-height:1.25}a{color:#0b5cad}footer{margin-top:3rem;font-size:.9rem;color:#555}
@media(prefers-color-scheme:dark){body{background:#111;color:#eee}a{color:#8ab8f0}footer{color:#aaa}}