:root{color-scheme:light dark;--bg:#F4F4F2;--fg:#131416;--muted:#595C63;--accent:#0B6F73}
@media (prefers-color-scheme:dark){:root{--bg:#0C0D0F;--fg:#F4F4F2;--muted:#A8ACB4;--accent:#5ED6D2}}
body{margin:0;background:var(--bg);color:var(--fg);font:17px/1.6 -apple-system,system-ui,sans-serif}
main{max-width:680px;margin:0 auto;padding:48px 20px}
h1{font-size:32px;margin:0 0 4px}h2{font-size:20px;margin:32px 0 8px}
.muted{color:var(--muted)}a{color:var(--accent)}