:root{color-scheme:light dark;--bg:#fff;--fg:#1d1d1f;--muted:#6e6e73;--accent:#0a84ff;--rule:#d2d2d7;--card:#f5f5f7}
@media (prefers-color-scheme:dark){:root{--bg:#000;--fg:#f5f5f7;--muted:#a1a1a6;--accent:#4da3ff;--rule:#3a3a3c;--card:#1c1c1e}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--fg);font:17px/1.55 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif}
header.top{border-bottom:1px solid var(--rule)}
header.top div{max-width:920px;margin:0 auto;padding:14px 16px;display:flex;flex-wrap:wrap;gap:8px 20px;align-items:center}
header.top .brand{font-weight:700;font-size:1.1rem;color:var(--fg);text-decoration:none;margin-right:auto}
header.top a{font-size:.95rem;text-decoration:none}
main{max-width:720px;margin:0 auto;padding:32px 16px 64px}
main.wide{max-width:920px}
h1{font-size:2rem;line-height:1.2;margin:0 0 4px}
h2{font-size:1.2rem;margin:32px 0 6px}
p,li{margin:8px 0}
ul{padding-left:1.2em}
a{color:var(--accent)}
.muted{color:var(--muted)}
.summary{border:1px solid var(--rule);border-radius:14px;padding:12px 16px;margin:20px 0}
.hero{padding:24px 0 8px}
.hero p{font-size:1.15rem;color:var(--muted);max-width:640px}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:16px;margin:24px 0}
.card{background:var(--card);border:1px solid var(--rule);border-radius:20px;padding:20px}
.icon{width:64px;height:64px;border-radius:16px;background:linear-gradient(135deg,#5e5ce6,#0a84ff);color:#fff;font-weight:800;font-size:2rem;display:flex;align-items:center;justify-content:center;margin-bottom:12px}
.badges span{display:inline-block;border:1px solid var(--rule);border-radius:999px;padding:2px 10px;font-size:.85rem;margin:0 6px 6px 0;color:var(--muted)}
.btn{display:inline-block;padding:8px 16px;border-radius:999px;background:var(--accent);color:#fff;text-decoration:none;margin:4px 8px 4px 0;font-size:.95rem}
.btn.off{background:var(--rule);color:var(--muted);cursor:default}
footer{border-top:1px solid var(--rule);margin-top:48px;padding-top:16px;font-size:.9rem;color:var(--muted)}
footer a{margin-right:14px}