:root{--bg:#FFFFFF;--fg:#17181B;--muted:#6B6E76;--off:#DEDCD5;--blue:#1F5BD6;--line:#E3E3E6;color-scheme:light dark}
@media (prefers-color-scheme:dark){:root{--bg:#000000;--fg:#F2F2F4;--muted:#9A9DA5;--off:#3A3A3E;--blue:#6AA7FF;--line:#2C2C2E}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--fg);font:17px/1.6 -apple-system,BlinkMacSystemFont,"SF Pro Text","Segoe UI",system-ui,sans-serif}
main{max-width:720px;margin:0 auto;padding:48px max(20px,env(safe-area-inset-left)) 80px}
a{color:var(--blue)}
h1{font-size:40px;line-height:1.1;margin:.4em 0 .4em;font-weight:650;font-stretch:125%;letter-spacing:-.3px}
h2{font-size:21px;margin:1.8em 0 .4em;font-weight:650}
ul{padding-left:1.2em}
li{margin:.5em 0}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:700;color:var(--fg);text-decoration:none}
.brand svg{width:28px;height:28px}
.muted{color:var(--muted)}
nav{display:flex;gap:18px;flex-wrap:wrap;margin-top:44px;padding-top:20px;border-top:1px solid var(--line);font-size:15px}
footer{margin-top:20px;font-size:14px;color:var(--muted)}