:root {
  --primary: #0a2540;
  --accent: #3b82f6;
}
* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  color: #e6edf6;
  background: radial-gradient(1200px 600px at 50% -10%, #15396b, var(--primary));
  display: grid;
  place-items: center;
  text-align: center;
}
main { max-width: 640px; padding: 2rem 1.5rem; }
.badge {
  display: inline-block;
  font-weight: 600;
  letter-spacing: 0.04em;
  font-size: 0.8rem;
  text-transform: uppercase;
  color: var(--accent);
  border: 1px solid rgba(59, 130, 246, 0.4);
  border-radius: 999px;
  padding: 0.35rem 0.9rem;
  margin-bottom: 2rem;
}
h1 { font-size: clamp(2rem, 6vw, 3.25rem); margin: 0 0 1rem; line-height: 1.1; }
p { color: #9fb3cc; font-size: 1.1rem; margin: 0; }