body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
  line-height: 1.6;
}

header {
  text-align: center;
  padding: 2rem 1rem;
  background: #333;
  color: #fff;
}

.hero img {
  width: 100%;
  height: auto;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 1rem;
}

button, .button {
  background: #333;
  color: #fff;
  padding: 0.5rem 1rem;
  text-decoration: none;
  border: none;
  cursor: pointer;
}

footer {
  text-align: center;
  padding: 1rem;
  background: #f4f4f4;
}