body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
  line-height: 1.6;
  background: #f9fafc;
  color: #222;
}

header {
  background: #0c3c78;
  color: #fff;
  padding: 1rem 0;
  text-align: center;
}

nav a {
  color: #fff;
  margin: 0 15px;
  text-decoration: none;
  font-weight: bold;
}

nav a:hover {
  text-decoration: underline;
}

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

h1, h2 {
  color: #0c3c78;
}

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