body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: #f8f9fa;
  color: #333;
}

header {
  background: #343a40;
  color: white;
  text-align: center;
  padding: 20px 10px;
}

main {
  padding: 20px;
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 20px;
}

.gallery img {
  max-width: 100%;
  height: auto;
  border: 4px solid #ccc;
  border-radius: 10px;
  box-shadow: 2px 2px 10px rgba(0,0,0,0.1);
}

footer {
  text-align: center;
  padding: 10px;
  background: #e9ecef;
  margin-top: 20px;
}