body {
  font-family: system-ui, -apple-system, sans-serif;
  background: #0f172a;
  color: #e5e7eb;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
}

main {
  text-align: center;
}

h1 {
  font-size: 3rem;
  margin-bottom: 0.5rem;
}