:root{--bg:#f5f5f2;--ink:#1b1d22;--muted:#6c7079;--line:#e4e3de;--accent:#2b6f6a}
@media (prefers-color-scheme:dark){:root{--bg:#121417;--ink:#e8e9ec;--muted:#959aa4;--line:#2b2f36;--accent:#4fb3a9}}
html,body{margin:0;background:var(--bg);color:var(--ink);font:17px/1.6 -apple-system,BlinkMacSystemFont,"Segoe UI",Inter,sans-serif;-webkit-text-size-adjust:100%}
main{max-width:640px;margin:0 auto;padding:48px 20px 80px}
h1{font-size:30px;line-height:1.2;margin:8px 0 6px}
h2{font-size:19px;margin:34px 0 6px}
p,ul{margin:0 0 14px}
ul{padding-left:22px}
li{margin-bottom:6px}
a{color:var(--accent)}
.muted,.crumb{color:var(--muted);font-size:15px}
.crumb a{color:var(--muted)}
.lead{font-size:19px}
.logo{border-radius:14px;display:block;margin-bottom:10px}