:root{--bg:#f6f7fb;--card:#fff;--text:#14161c;--muted:#5b6170;--brand:#1f5eff;--line:#e3e6ee}
@media (prefers-color-scheme:dark){:root{--bg:#0e1015;--card:#171a21;--text:#eef0f5;--muted:#a1a7b5;--brand:#6c95ff;--line:#262a34}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--text);font:17px/1.6 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif}
main{max-width:720px;margin:0 auto;padding:40px 16px 64px}
header.site{display:flex;align-items:center;gap:12px;margin-bottom:32px}
header.site img{width:44px;height:44px;border-radius:10px}
header.site a{color:inherit;text-decoration:none;font-weight:700;font-size:20px}
nav{margin-left:auto;display:flex;gap:16px;font-size:15px}
nav a{color:var(--muted)!important;font-weight:500!important;font-size:15px!important}
h1{font-size:34px;line-height:1.2;margin:0 0 12px}
h2{font-size:21px;margin:36px 0 8px}
p,li{color:var(--text)}
.lead{font-size:20px;color:var(--muted)}
.muted{color:var(--muted);font-size:15px}
a{color:var(--brand)}
.card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:20px 22px;margin:16px 0}
.hero{text-align:center;padding:24px 0 8px}
.hero img{width:112px;height:112px;border-radius:26px;box-shadow:0 8px 24px rgba(0,0,0,.15)}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:12px}
.grid .card{margin:0}
.grid h3{margin:0 0 4px;font-size:17px}
.grid p{margin:0;color:var(--muted);font-size:15px}
details{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:12px 16px;margin:10px 0}
summary{cursor:pointer;font-weight:600}
footer{margin-top:48px;padding-top:16px;border-top:1px solid var(--line);color:var(--muted);font-size:14px}