:root {
  --bg:#080b12;
  --panel:#101827;
  --text:#f2f7ff;
  --muted:#a9b6cc;
  --line:rgba(255,255,255,.14);
  --accent:#66f6ff;
  --accent2:#b68cff;
  --good:#8cffc1;
}
* { box-sizing:border-box; }
body {
  margin:0;
  font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  background:
    radial-gradient(circle at 20% 10%, rgba(102,246,255,.15), transparent 28rem),
    radial-gradient(circle at 80% 10%, rgba(182,140,255,.14), transparent 26rem),
    linear-gradient(180deg,#080b12,#0a1020);
  color:var(--text);
}
main { max-width:920px; margin:0 auto; padding:36px 24px 80px; }
a { color:var(--accent); }
.back { color:var(--muted); text-decoration:none; }
h1 { font-size:clamp(38px,7vw,68px); line-height:1; letter-spacing:-.05em; margin:46px 0 18px; }
p, li { color:var(--muted); font-size:18px; line-height:1.6; }
.panel {
  border:1px solid var(--line);
  border-radius:24px;
  padding:24px;
  background:rgba(255,255,255,.05);
  margin:22px 0;
}
.grid { display:grid; grid-template-columns:repeat(auto-fit,minmax(220px,1fr)); gap:16px; margin-top:24px; }
.card {
  display:block;
  border:1px solid var(--line);
  border-radius:20px;
  padding:20px;
  background:rgba(255,255,255,.05);
  text-decoration:none;
}
.card strong { display:block; color:var(--text); margin-bottom:8px; }
.card span { color:var(--muted); }
.btn {
  display:inline-flex;
  padding:14px 18px;
  border-radius:14px;
  background:linear-gradient(135deg,var(--accent),var(--accent2));
  color:#031015;
  text-decoration:none;
  font-weight:900;
  margin-right:10px;
  margin-top:10px;
}
.btn.secondary {
  background:rgba(255,255,255,.06);
  color:var(--text);
  border:1px solid var(--line);
}
.note { color:var(--good); }