.site-header, .site-footer {
  background: #000;
  color: white;
  padding: 1rem;
  text-align: center;
}

nav ul {
  display: flex;
  justify-content: center;
  gap: 1rem;
  list-style: none;
}

main.zine-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  padding: 2rem;
}