:root{
  --bg:#070a14;
  --fg:#eef1ff;
  --muted:#b9c0ffcc;
  --line:#ffffff14;
  --a:#7aa2ff;
  --b:#66ffd6;
}

*{box-sizing:border-box}

body{
  margin:0;
  min-height:100vh;
  display:grid;
  place-items:center;
  padding:28px;
  color:var(--fg);
  font:16px/1.6 system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,sans-serif;
  background:
    radial-gradient(900px 500px at 15% 10%, #1a2a6c55, transparent 55%),
    radial-gradient(800px 450px at 85% 0%, #00c6ff2b, transparent 55%),
    linear-gradient(180deg,var(--bg),#050710);
}

main{
  max-width:860px;
  width:100%;
  border:1px solid var(--line);
  border-radius:18px;
  background:linear-gradient(180deg,#ffffff10,#ffffff05);
  padding:26px 22px;
}

h1{
  margin:0 0 8px;
  font-size:clamp(26px,3.6vw,40px);
  letter-spacing:-.4px;
  line-height:1.15;
}

p{
  margin:0 0 14px;
  color:var(--muted);
  font-size:clamp(15px,2vw,17px);
}

.row{
  display:flex;
  gap:12px;
  flex-wrap:wrap;
  align-items:center;
}

a.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  padding:10px 12px;
  border-radius:14px;
  text-decoration:none;
  font-weight:700;
  border:1px solid var(--line);
  background:#ffffff08;
  color:var(--fg);
}

a.btn.primary{
  border-color:transparent;
  background:linear-gradient(135deg,var(--a),var(--b));
  color:#06101e;
}

small{
  display:block;
  margin-top:14px;
  color:var(--muted);
}

code{
  background:#0000002b;
  border:1px solid var(--line);
  padding:2px 6px;
  border-radius:10px;
  font-size:12px;
}

.hint{opacity:.9}