body {
  font-family: Helvetica, Arial, sans-serif;
  background-color: #ffffff;
  color: #000000;
  margin: 0;
  padding: 0;
}

.container {
  max-width: 800px;
  margin: 0 auto;
  padding: 2rem;
}

header {
  background-image: url("capa.jpg");
  background-size: cover;
  background-position: center;
  color: white;
  padding: 2rem 1rem;
  text-align: center;
}

header h1 {
  margin-bottom: 0.5rem;
  color: white;
}

nav a {
  text-decoration: none;
  color: #4d5e3a;
  font-size: 0.9rem;
}

article {
  margin-bottom: 2rem;
}

article h2 {
  margin-bottom: 0.5rem;
  color: #4d5e3a;
  font-size: 1.4rem;
}

footer {
  margin-top: 4rem;
  font-size: 0.9rem;
  color: #666;
  text-align: center;
}

footer a {
  color: #4d5e3a;
  text-decoration: none;
}

.signature {
  margin-top: 1rem;
  font-size: 0.85rem;
}