:root{
  --bg:#0b1220;
  --card:#111c36;
  --text:#eaf0ff;
  --muted:#9aa9d6;
  --brand:#2dd4bf;
  --brand2:#60a5fa;
  --line:rgba(255,255,255,.12);
  --radius:22px;
}

*{box-sizing:border-box}

body{
  margin:0;
  height:100vh;
  display:flex;
  align-items:center;
  justify-content:center;
  font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial;
  background:
    radial-gradient(900px 400px at 10% 10%, rgba(45,212,191,.25), transparent 60%),
    radial-gradient(800px 400px at 90% 20%, rgba(96,165,250,.25), transparent 60%),
    linear-gradient(180deg,#070b14,#0b1220);
  color:var(--text);
}

.container{
  max-width:520px;
  padding:32px;
  border-radius:var(--radius);
  background:linear-gradient(180deg,rgba(17,28,54,.85),rgba(7,11,20,.85));
  border:1px solid var(--line);
  text-align:center;
  box-shadow:0 30px 80px rgba(0,0,0,.45);
}

.logo{
  width:56px;
  height:56px;
  margin:0 auto 18px;
  border-radius:18px;
  background:conic-gradient(from 180deg,var(--brand),var(--brand2),var(--brand));
  display:grid;
  place-items:center;
}

.logo::after{
  content:"";
  width:28px;
  height:28px;
  border-radius:10px;
  background:#0b1220;
  border:1px solid var(--line);
}

h1{
  margin:0 0 8px;
  font-size:26px;
  letter-spacing:-.5px;
}

p{
  margin:0;
  color:var(--muted);
  font-size:15px;
  line-height:1.5;
}

.highlight{
  margin:20px 0;
  padding:12px 16px;
  border-radius:14px;
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  font-size:13px;
  color:#dbe4ff;
}

footer{
  margin-top:22px;
  font-size:12px;
  color:var(--muted);
}