:root{--bg:#f6f8fb;--fg:#111829;--muted:#5b6476;--card:#fff;--accent:#0e5c68;--amber:#ffb02e}
@media (prefers-color-scheme:dark){:root{--bg:#0d1220;--fg:#eef1f6;--muted:#9aa3b5;--card:#151c2e;--accent:#4fb3bf}}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--fg);font:17px/1.6 -apple-system,BlinkMacSystemFont,"Helvetica Neue",sans-serif}
main{max-width:860px;margin:0 auto;padding:40px 16px 64px}
header{display:flex;align-items:center;gap:14px}header img{width:56px;height:56px}header a{color:inherit;text-decoration:none;font-weight:700;font-size:22px}
h1{font-size:clamp(32px,6vw,52px);line-height:1.08;letter-spacing:-.02em;margin:48px 0 12px}h2{margin-top:36px;font-size:22px}
p.lead{font-size:20px;color:var(--muted);max-width:620px}.hero{width:100%;border-radius:14px;margin:28px 0;box-shadow:0 20px 50px #0003}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px}.card{background:var(--card);border-radius:14px;padding:18px}.card b{display:block;margin-bottom:4px}
kbd{font:600 14px "SF Mono",Menlo,monospace;border:1px solid #8884;border-radius:6px;padding:1px 6px}
a{color:var(--accent)}footer{margin-top:56px;color:var(--muted);font-size:14px}footer a{margin-right:14px}
.btn{display:inline-block;background:var(--fg);color:var(--bg);padding:12px 20px;border-radius:12px;text-decoration:none;font-weight:600}