body {
  margin: 0;
  line-height: 1.6;
}
section {
  padding: 2rem;
}
h2 {
  margin-top: 0;
}
form input, form textarea {
  width: 100%;
  padding: 0.5rem;
  margin-bottom: 1rem;
}
form button {
  padding: 0.5rem 1rem;
  background: #2C3E50;
  color: white;
  border: none;
}