:root{color-scheme:light dark}
body{margin:0;font:16px/1.55 system-ui,-apple-system,"Segoe UI",sans-serif;
background:#fbfbfc;color:#1d1f24}
main{max-width:44rem;margin:0 auto;padding:3rem 1.25rem}
h1{font-size:1.6rem;font-weight:600;letter-spacing:-.01em}
a{color:#2563eb}
footer{margin-top:2.5rem;padding-top:1rem;border-top:1px solid #e6e8ec;
color:#6b7280;font-size:.9rem}
@media(prefers-color-scheme:dark){body{background:#0f1115;color:#e6e8ec}
footer{border-color:#242833;color:#9aa1ad}}