:root {
  font-family: Arial, sans-serif;
  color: #1f2937;
  background: #f8fafc;
}

body {
  display: grid;
  min-height: 100vh;
  margin: 0;
  place-items: center;
}

main {
  padding: 2rem;
  text-align: center;
}

button {
  padding: 0.6rem 1rem;
  border: 0;
  border-radius: 0.4rem;
  color: white;
  background: #2563eb;
  cursor: pointer;
}

button:hover {
  background: #1d4ed8;
}