:root{--bg:#fff;--fg:#111;--muted:#5b5b5b;--line:#eee}
@media (prefers-color-scheme:dark){:root{--bg:#0b0b0b;--fg:#f5f5f5;--muted:#a3a3a3;--line:#222}}
*{box-sizing:border-box;margin:0;padding:0}
body{background:var(--bg);color:var(--fg);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Inter,Roboto,Helvetica,Arial,sans-serif;-webkit-font-smoothing:antialiased;line-height:1.6}
a{color:inherit}
.wrap{max-width:640px;margin:0 auto;padding:28px 20px 60px}
.back{display:inline-block;font-size:14px;color:var(--muted);text-decoration:none;margin-bottom:22px}
h1{font-size:28px;font-weight:800;letter-spacing:-.3px}
.upd{color:var(--muted);font-size:13px;margin:6px 0 24px}
h2{font-size:17px;font-weight:700;margin:26px 0 8px}
p,li{font-size:15px;color:var(--fg)}
ul{padding-left:20px}
li{margin:4px 0}
hr{border:0;border-top:1px solid var(--line);margin:30px 0}
.foot{color:var(--muted);font-size:12px;text-align:center}