body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: #f4f4f4;
  color: #333;
}
header {
  background: #004080;
  color: white;
  padding: 1rem;
  text-align: center;
  position: sticky;
  top: 0;
  z-index: 1000;
}
nav {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 0.5rem;
}
nav a {
  color: white;
  text-decoration: none;
  font-weight: bold;
}
main {
  padding: 1rem;
}
section {
  margin-bottom: 2rem;
  background: white;
  padding: 1rem;
  border-radius: 8px;
}
section img {
  max-width: 100%;
  height: auto;
  margin: 1rem 0;
}
form {
  display: flex;
  flex-direction: column;
}
form label {
  margin-top: 1rem;
}
form input, form textarea {
  padding: 0.5rem;
  margin-top: 0.5rem;
  border: 1px solid #ccc;
  border-radius: 4px;
}
form button {
  margin-top: 1rem;
  padding: 0.75rem;
  background: #004080;
  color: white;
  border: none;
  border-radius: 4px;
  cursor: pointer;
}
footer {
  text-align: center;
  padding: 1rem;
  background: #eee;
}