body {
  margin: 0;
  min-height: 100vh;
  display: grid;
  place-items: center;
  font-family: system-ui, sans-serif;
  background: #0f172a;
  color: #e2e8f0;
}

main {
  text-align: center;
}

button {
  padding: 0.6rem 1.2rem;
  font-size: 1rem;
  border: none;
  border-radius: 8px;
  background: #f97316;
  color: white;
  cursor: pointer;
}