:root {
  --bg: #0f1115;
  --card: #171a22;
  --muted: #98a2b3;
  --text: #e5e7eb;
  --accent: #5eead4;
  --accent-2: #60a5fa;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;background:var(--bg);color:var(--text);font:16px/1.6 system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,Helvetica,Arial}
.container{max-width:1100px;margin:0 auto;padding:24px}
.site-header{position:sticky;top:0;background:rgba(15,17,21,.8);backdrop-filter:saturate(120%) blur(6px);border-bottom:1px solid #222;z-index:10}
.header-wrap{display:flex;align-items:center;justify-content:space-between;gap:16px}
.brand{display:flex;align-items:center;gap:12px}
.brand img{width:40px;height:40px}
.brand h1{font-size:20px;margin:0}
nav a{color:var(--text);text-decoration:none;margin:0 8px;padding:8px 10px;border-radius:10px}
nav a:hover, nav a.active{background:var(--card)}
.hero h2{font-size:36px;margin:12px 0 8px}
.hero p{color:var(--muted);max-width:780px}
.cta-row{display:flex;gap:12px;margin:16px 0 24px}
.btn{background:linear-gradient(90deg,var(--accent),var(--accent-2));border:none;color:#0b1020;padding:10px 14px;border-radius:10px;font-weight:700;text-decoration:none}
.btn.ghost{background:transparent;border:1px solid #2a2f3b;color:var(--text)}
.grid.three{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px;margin:18px 0}
.card{background:var(--card);border:1px solid #222;border-radius:14px;padding:16px}
.card h3{margin:0 0 6px}
.card a{color:var(--accent-2);text-decoration:none}
.checklist{columns:2;gap:40px}
.checklist li{margin:8px 0}
.site-footer{border-top:1px solid #222}
code, pre{background:#10131a;border:1px solid #1f2530;border-radius:10px;padding:2px 6px}
pre{padding:12px;overflow:auto}
.table{width:100%;border-collapse:collapse}
.table th,.table td{border-bottom:1px solid #1e2430;padding:10px;text-align:left}
.kbd{border:1px solid #2a2f3b;border-bottom-width:2px;padding:2px 6px;border-radius:6px;background:#0c0f14}
.small{color:var(--muted);font-size:14px}