body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
  background-color: #f6f8fa;
  color: #333;
}

header {
  background-color: #004466;
  color: white;
  padding: 2rem 1rem;
  text-align: center;
}

main {
  padding: 2rem;
  max-width: 800px;
  margin: auto;
}

img {
  max-width: 100%;
  height: auto;
  margin-top: 1rem;
}

footer {
  background-color: #ddd;
  padding: 1rem;
  text-align: center;
  font-size: 0.9rem;
}