body {
  background-image: url('../img/fondo.png');
  background-size: cover;
  background-repeat: no-repeat;
  background-position: center center;
  background-attachment: fixed;
}

.badge {
  font-size: 0.9rem;
}

.section-title {
  margin-top: 2rem;
  margin-bottom: 1rem;
  border-bottom: 2px solid #dee2e6;
  padding-bottom: 0.5rem;
}

footer {
  margin-top: 4rem;
  font-size: 0.9rem;
  color: #6c757d;
}