.card-bg-aire {
  position: relative;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  color: white; /* texto blanco */
  overflow: hidden;
}

.card-bg-aire::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.6), transparent 60%);
  z-index: 0;
  pointer-events: none;
}