body {

  font-family: Arial, sans-serif;

  background: #f7f7f7;

  margin: 0;

  padding: 0;

}

header, footer {

  background: #004080;

  color: white;

  text-align: center;

  padding: 1rem;

}

nav {

  background: #0066cc;

  padding: 0.5rem;

  text-align: center;

}

nav a {

  color: white;

  margin: 0 1rem;

  text-decoration: none;

}

section {

  background: white;

  margin: 2rem auto;

  padding: 2rem;

  max-width: 800px;

  box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);

}

input, button {

  display: block;

  width: 100%;

  padding: 0.5rem;

  margin: 0.5rem 0;

}

button {

  background-color: #004080;

  color: white;

  border: none;

  cursor: pointer;

}

.form-container {

  max-width: 400px;

  margin: auto;

}