:root{--fg:#1f2328;--muted:#656d76;--line:#d0d7de;--bg:#fff;--card:#f6f8fa;--accent:#0969da}
*{box-sizing:border-box}
body{margin:0;font-family:system-ui,-apple-system,"Segoe UI",sans-serif;color:var(--fg);background:var(--bg);line-height:1.55}
.nav{display:flex;align-items:center;justify-content:space-between;padding:1rem 1.5rem;border-bottom:1px solid var(--line)}
.brand{font-weight:700;text-decoration:none;color:var(--fg);letter-spacing:-.02em}
.nav nav a{margin-left:1.25rem;text-decoration:none;color:var(--muted);font-size:.925rem}
.nav nav a:hover{color:var(--accent)}
main{max-width:56rem;margin:0 auto;padding:2.5rem 1.5rem}
h1{font-size:1.9rem;letter-spacing:-.02em;margin:0 0 .5rem}
h2{font-size:1.15rem;margin:0 0 .5rem}
h3{font-size:1rem;margin:0 0 .35rem}
.lead{color:var(--muted);font-size:1.05rem;margin:0 0 2rem}
.card{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:1.1rem 1.25rem;margin:0 0 1rem}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(14rem,1fr));gap:1rem}
pre{background:#fff;border:1px solid var(--line);border-radius:8px;padding:.75rem 1rem;overflow-x:auto;margin:.6rem 0}
code{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.875rem}
.muted{color:var(--muted);font-size:.9rem}
.price{font-size:1.6rem;font-weight:600;margin:.2rem 0}
.price span{font-size:.9rem;font-weight:400;color:var(--muted)}
.dot{display:inline-block;width:.55rem;height:.55rem;border-radius:50%;margin-right:.5rem}
.dot.ok{background:#1a7f37}
footer{border-top:1px solid var(--line);padding:1.25rem 1.5rem;color:var(--muted);font-size:.875rem}
footer a{color:var(--muted)}
@media(prefers-color-scheme:dark){
:root{--fg:#e6edf3;--muted:#8b949e;--line:#30363d;--bg:#0d1117;--card:#161b22;--accent:#4493f8}
pre{background:#0d1117}
}