body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: linear-gradient(to bottom, #f4f6fa 0%, #ffffff 100%);
  color: #1a1a1a;
}
.hero {
  text-align: center;
  padding: 3rem 1rem;
  background: linear-gradient(to right, #e8ebf7, #fdfdfe);
}
.btn {
  display: inline-block;
  padding: 0.75rem 1.25rem;
  background: linear-gradient(to right, #007aff, #0a84ff);
  color: white;
  border-radius: 10px;
  text-decoration: none;
  font-weight: 600;
}
.footer {
  text-align: center;
  padding: 2rem;
  background-color: #f2f2f7;
  font-size: 0.9rem;
}