body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
  background: #fff;
  color: #111;
}

header {
  text-align: center;
  padding: 60px 20px;
}

nav {
  text-align: center;
  margin-bottom: 40px;
}

nav a {
  margin: 0 15px;
  text-decoration: none;
  color: #111;
  font-weight: bold;
}

section {
  max-width: 900px;
  margin: 0 auto 80px;
  padding: 0 20px;
}

.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 20px;
}

.gallery img {
  width: 100%;
  object-fit: cover;
}

footer {
  text-align: center;
  padding: 40px;
  font-size: 14px;
  color: #777;
}