:root {
  --bg: #0f1117;
  --fg: #f4f4f5;
  --accent: #6366f1;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  min-height: 100vh;
  display: grid;
  place-items: center;
  background: radial-gradient(circle at 50% 0%, #1e2130, var(--bg));
  color: var(--fg);
  font-family: system-ui, "Segoe UI", sans-serif;
  text-align: center;
}

main {
  padding: 2rem;
}

h1 {
  font-size: clamp(2.5rem, 8vw, 4.5rem);
  background: linear-gradient(90deg, var(--accent), #a78bfa);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin-bottom: 1rem;
}

p {
  font-size: 1.15rem;
  opacity: 0.8;
  line-height: 1.7;
}

.stamp {
  margin-top: 2rem;
  font-size: 0.85rem;
  opacity: 0.45;
  font-variant-numeric: tabular-nums;
}