.portada {
  background: linear-gradient(rgba(0, 0, 128, 0.6), rgba(0, 0, 128, 0.6)),
              url('https://source.unsplash.com/1600x600/?tourism,travel') no-repeat center center;
  background-size: cover;
  color: white;
  padding: 100px 0;
  text-align: center;
}

.portada h1 {
  font-weight: bold;
}

.card img {
  height: 200px;
  object-fit: cover;
}

.card {
  transition: transform 0.3s ease;
}

.card:hover {
  transform: scale(1.03);
}

.modal-content {
  border-radius: 15px;
  border: 2px solid #007bff;
}

.modal-header {
  background-color: #007bff;
  color: white;
  border-bottom: none;
}

.modal-body p {
  margin-bottom: 1rem;
}

.footer {
  background-color: #001f3f;
  font-size: 0.9rem;
}

.footer a {
  text-decoration: none;
}

.footer a:hover {
  text-decoration: underline;
}