:root {
  --bg: #0b1220;
  --fg: #f4f7fb;
  --muted: #9aa8bd;
  --accent: #3b82f6;
}

* { box-sizing: border-box; }

html, body { height: 100%; }

body {
  margin: 0;
  display: flex;
  flex-direction: column;
  font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  color: var(--fg);
  background:
    radial-gradient(60rem 40rem at 80% -10%, rgba(59, 130, 246, .28), transparent 60%),
    radial-gradient(40rem 30rem at 0% 110%, rgba(16, 185, 129, .16), transparent 60%),
    var(--bg);
}

main {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  width: 100%;
  max-width: 44rem;
  margin: 0 auto;
  padding: 2rem 1.5rem;
}

.brand {
  margin: 0 0 2.5rem;
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--accent);
}

h1 {
  margin: 0;
  font-size: clamp(2.5rem, 8vw, 4.5rem);
  line-height: 1.05;
  letter-spacing: -.03em;
  text-wrap: balance;
}

.lead {
  margin: 1.25rem 0 2rem;
  max-width: 30rem;
  font-size: 1.15rem;
  color: var(--muted);
}

.badge {
  align-self: flex-start;
  padding: .45rem .9rem;
  border: 1px solid rgba(255, 255, 255, .18);
  border-radius: 999px;
  font-size: .85rem;
}

a { color: #9cc2ff; }

footer {
  padding: 1.5rem;
  text-align: center;
  font-size: .85rem;
  color: var(--muted);
}