:root{
  --bg:#0b1220;
  --panel:#101a2f;
  --text:#e8eefc;
  --muted:#b6c2e2;
  --accent:#6aa7ff;
  --accent2:#7ef0c2;
  --border:rgba(255,255,255,.12);
}
*{box-sizing:border-box}
body{
  margin:0;
  font:16px/1.5 system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,Cantarell,Noto Sans,sans-serif;
  background:radial-gradient(1200px 600px at 20% 0%, rgba(106,167,255,.18), transparent 50%),
             radial-gradient(1000px 600px at 90% 10%, rgba(126,240,194,.12), transparent 55%),
             var(--bg);
  color:var(--text);
}
.wrap{max-width:980px;margin:0 auto;padding:28px 22px}
.top{display:flex;align-items:center;justify-content:space-between;gap:18px}
.brand{font-weight:800;letter-spacing:.2px}
.nav a{color:var(--muted);text-decoration:none;margin-left:14px}
.nav a:hover{color:var(--text)}
header h1{font-size:44px;line-height:1.1;margin:26px 0 10px}
.lead{font-size:18px;color:var(--muted);max-width:70ch}
code{background:rgba(255,255,255,.08);padding:.12em .35em;border-radius:6px}
pre{background:var(--panel);border:1px solid var(--border);border-radius:12px;padding:16px;overflow:auto}
.cta{display:flex;gap:12px;margin:18px 0 10px;flex-wrap:wrap}
.btn{display:inline-block;border:1px solid var(--border);padding:10px 14px;border-radius:10px;color:var(--text);text-decoration:none;background:rgba(255,255,255,.04)}
.btn:hover{border-color:rgba(255,255,255,.25)}
.btn.primary{background:linear-gradient(90deg, rgba(106,167,255,.9), rgba(126,240,194,.85));color:#04101f;border-color:transparent;font-weight:700}
.badges{display:flex;gap:10px;flex-wrap:wrap;margin-top:14px}
.badge{border:1px solid var(--border);color:var(--muted);padding:6px 10px;border-radius:999px;font-size:13px;background:rgba(255,255,255,.03)}
section{margin:26px 0}
section h2{margin:0 0 10px;font-size:22px}
.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;padding:0;list-style:none}
.grid li{background:rgba(255,255,255,.03);border:1px solid var(--border);border-radius:12px;padding:12px;color:var(--muted)}
.grid strong{color:var(--text)}
.hint{color:var(--muted)}
.footer{border-top:1px solid var(--border);margin-top:34px;padding-top:14px;color:var(--muted)}
.footer a{color:var(--muted)}
.footer a:hover{color:var(--text)}
@media (max-width: 860px){
  header h1{font-size:36px}
  .grid{grid-template-columns:1fr}
  .nav{display:none}
}