:root{--bg:#f7faf8;--fg:#14211b;--muted:#4d5e56;--accent:#128c5e;--card:#fff;--line:#dde7e1}
@media (prefers-color-scheme:dark){:root{--bg:#0f1714;--fg:#e8f0ec;--muted:#a3b5ac;--accent:#3ccf8e;--card:#16211c;--line:#26352e}}
*{box-sizing:border-box}
body{margin:0;font-family:system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;background:var(--bg);color:var(--fg);line-height:1.6}
.wrap{max-width:960px;margin:0 auto;padding:0 16px}
header{border-bottom:1px solid var(--line)}
header .wrap{display:flex;justify-content:space-between;align-items:center;height:64px}
.logo{font-weight:700;font-size:1.2rem;color:var(--fg);text-decoration:none}
.logo span{color:var(--accent)}
nav a{color:var(--muted);text-decoration:none;margin-left:18px;font-size:.95rem}
nav a:hover{color:var(--accent)}
.hero{padding:72px 0 48px}
.hero h1{font-size:clamp(1.9rem,5vw,2.8rem);line-height:1.15;margin:0 0 16px;max-width:720px}
.hero p{font-size:1.15rem;color:var(--muted);max-width:640px;margin:0}
h2{font-size:1.5rem;margin:48px 0 16px}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px}
.card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:20px}
.card h3{margin:0 0 8px;font-size:1.05rem}
.card p{margin:0;color:var(--muted);font-size:.95rem}
ol.steps{padding-left:20px;color:var(--muted)}
ol.steps li{margin-bottom:8px}
ol.steps b{color:var(--fg)}
.doc h1{margin-top:48px}
.doc h2{font-size:1.2rem;margin:32px 0 8px}
.doc p,.doc li{color:var(--muted)}
footer{border-top:1px solid var(--line);margin-top:64px;padding:24px 0;color:var(--muted);font-size:.9rem}
footer a{color:var(--muted);margin-right:16px}
.tag{color:var(--accent);font-weight:700;letter-spacing:.08em;text-transform:uppercase;font-size:.85rem;margin:0 0 12px}