body.fondo {
  margin: 0;
  font-family: 'Segoe UI', sans-serif;
  background-color: #f0f8ff;
  color: #003366;
}

.encabezado {
  text-align: center;
  background: #007bff;
  color: white;
  padding: 2rem 1rem;
  border-bottom: 5px solid #0056b3;
}

.encabezado h1 {
  margin: 0;
  font-size: 2.5rem;
}

.encabezado p {
  margin-top: 0.5rem;
  font-size: 1.2rem;
}

.contenedor {
  display: flex;
  justify-content: center;
  gap: 2rem;
  flex-wrap: wrap;
  padding: 2rem;
}

.card {
  background: white;
  border: 2px solid #007bff;
  border-radius: 1rem;
  box-shadow: 0 5px 15px rgba(0, 123, 255, 0.2);
  width: 300px;
  padding: 1.5rem;
  text-align: center;
  transition: transform 0.3s;
}

.card:hover {
  transform: scale(1.05);
}

.icono {
  font-size: 3rem;
  color: #007bff;
  margin-bottom: 1rem;
}

.boton {
  display: inline-block;
  margin-top: 1rem;
  padding: 0.6rem 1.2rem;
  background-color: #007bff;
  color: white;
  text-decoration: none;
  border-radius: 0.5rem;
  transition: background-color 0.3s;
}

.boton:hover {
  background-color: #0056b3;
}

.pie {
  text-align: center;
  padding: 1rem;
  background-color: #003366;
  color: white;
  font-size: 0.9rem;
}