.spinner {
  width: 4rem;
  height: 4rem;
  border: 0.4rem solid #e0e0e0;
  border-top: 0.4rem solid #fd0d0d;
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin: 2rem auto;
}

@keyframes spin {
  100% { transform: rotate(360deg); }
}

.card {
  border-radius: 1rem;
  overflow: hidden;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 0.5rem 1rem rgba(0,0,0,0.15);
}
.card img {
  height: 200px;
  object-fit: cover;
}

.modal-content {
  border-radius: 1rem;
}

.modal-body img {
  max-height: 300px;
  object-fit: cover;
}
#instrucciones li {
  margin-bottom: 0.8rem;
  text-align: justify;
}