body {
  padding-top: 80px;
  background-color: #f8f9fa;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

/* Navbar */
.navbar-brand strong {
  font-size: 1.2rem;
  color: #ffffff;
}

.navbar .form-control,
.navbar .form-select {
  font-size: 0.9rem;
}

/* Tarjetas de productos */
.card {
  transition: transform 0.2s ease-in-out;
  border-radius: 12px;
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.card img {
  border-top-left-radius: 12px;
  border-top-right-radius: 12px;
  object-fit: cover;
  height: 200px;
}

.card .card-body {
  padding: 1rem;
}

.card-body h2.card-title {
  margin-top: 20px; /* Espacio adicional bajo la navbar */
}

@media (max-width: 768px) {
  .card-body h2.card-title {
    margin-top: 40px; /* Más espacio en móviles */
  }
}

/* Footer */
footer {
  background-color: #212529;
  color: #f8f9fa;
  font-size: 0.9rem;
}

/* Botón volver arriba */
#btn-volver-arriba {
  position: fixed;
  bottom: 20px;
  right: 20px;
  display: none;
  z-index: 999;
  border-radius: 50%;
  background-color: #0d6efd;
  color: white;
  border: none;
  padding: 12px 15px;
  font-size: 20px;
  box-shadow: 0 5px 15px rgba(0,0,0,0.2);
  cursor: pointer;
  transition: background-color 0.3s ease;
}

#btn-volver-arriba:hover {
  background-color: #0b5ed7;
}