body {
  font-family: Arial, sans-serif;
  margin: 0;
  background: #f4f6f8;
  color: #333;
}
header {
  background: #003366;
  color: white;
  padding: 1rem;
  text-align: center;
}
nav a {
  color: white;
  margin: 0 1rem;
  text-decoration: none;
}
main {
  padding: 2rem;
}
.gallery .grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
}
.gallery img {
  width: 100%;
  border-radius: 8px;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}
footer {
  background: #003366;
  color: white;
  text-align: center;
  padding: 1rem;
  position: relative;
  bottom: 0;
  width: 100%;
}
.whatsapp {
  background: #25D366;
  color: white;
  padding: 10px 20px;
  border-radius: 5px;
  text-decoration: none;
  font-weight: bold;
}