body {
  font-family: sans-serif;
  background: #0f172a;
  color: white;
  text-align: center;
  padding: 50px;
}
h1 {
  color: #38bdf8;
  letter-spacing: 2px;
}
button {
  background: #38bdf8;
  border: none;
  padding: 15px 30px;
  border-radius: 5px;
  cursor: pointer;
  font-weight: bold;
}