:root{--bg:#f6faf7;--fg:#14231b;--muted:#5b6b62;--card:#fff;--line:#dfe9e2;--accent:#1f9d55}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){--bg:#0f1712;--fg:#e6efe9;--muted:#9fb1a6;--card:#16211a;--line:#24342a;--accent:#4cc97f}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--fg);font:16px/1.6 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif}
main{max-width:760px;margin:0 auto;padding:32px 16px 64px}
header{display:flex;align-items:center;gap:12px;margin-bottom:8px}
header img{width:44px;height:44px;border-radius:12px}
h1{font-size:28px;margin:8px 0}
h2{font-size:19px;margin:28px 0 8px}
p,li{color:var(--fg)}
.muted{color:var(--muted);font-size:14px}
.card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:16px 20px;margin:16px 0}
a{color:var(--accent)}
ol li,ul li{margin:4px 0}