body{font:16px/1.6 system-ui,sans-serif;max-width:42rem;margin:3rem auto;padding:0 1rem;color:#1b1b1b;background:#fff}
h1{margin-bottom:.2rem}a{color:#0b57d0}footer{margin-top:3rem;font-size:.9rem;color:#555}
@media(prefers-color-scheme:dark){body{color:#e6e6e6;background:#141414}a{color:#8ab4f8}footer{color:#aaa}}