body {
  margin: 0;
  font-family: 'Arial', sans-serif;
  background: #f4f4f4;
}

header {
  background: #2c3e50;
  color: white;
  padding: 1rem;
  text-align: center;
}

#map {
  height: 70vh;
  width: 100%;
  margin: 1rem 0;
}

button {
  display: block;
  margin: 0 auto 2rem auto;
  padding: 1rem 2rem;
  background: #3498db;
  color: white;
  border: none;
  cursor: pointer;
  font-size: 1rem;
  border-radius: 5px;
}