body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
  background: #fdfdfd;
  color: #333;
}

header {
  background: #4c6ef5;
  color: white;
  text-align: center;
  padding: 2rem 1rem;
}

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

button {
  background: #4c6ef5;
  color: white;
  border: none;
  padding: 0.75rem 1.5rem;
  border-radius: 8px;
  font-size: 1rem;
  cursor: pointer;
}

button:hover {
  background: #364fc7;
}