body {
  font-family: 'Segoe UI', sans-serif;
  line-height: 1.6;
  margin: 0;
  padding: 0;
  background-color: #f9f9f9;
  color: #333;
}

header {
  background-color: #004080;
  color: #fff;
  text-align: center;
  padding: 2rem;
}

.lema {
  font-style: italic;
  margin-top: 0.5rem;
}

nav {
  background-color: #e0e0e0;
  padding: 1rem;
  text-align: center;
}

nav ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

nav ul li {
  display: inline-block;
  margin: 0 1rem;
}

nav ul li a {
  text-decoration: none;
  color: #004080;
  font-weight: bold;
}

main {
  padding: 2rem;
}

section {
  margin-bottom: 2.5rem;
}

h2 {
  color: #004080;
  margin-bottom: 1rem;
}

footer {
  background-color: #004080;
  color: #fff;
  text-align: center;
  padding: 1rem;
  font-size: 0.9rem;
}