.popup-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.75);
  display: flex;
  align-items: center;
  justify-content: center;

  /* CLAVE: siempre encima de todo */
  z-index: 2147483647;

  animation: fadeIn .3s ease;
}

.popup-content {
  position: relative;
  max-width: 90%;
  max-height: 90vh;
  background: transparent;
  border-radius: 16px;
}

.popup-content img {
  width: 100%;
  height: auto;
  max-height: 80vh;
  object-fit: contain;
  border-radius: 16px;
  box-shadow: 0 20px 50px rgba(0,0,0,.5);
}

.popup-close {
  position: absolute;
  top: -14px;
  right: -14px;
  width: 36px;
  height: 36px;
  border: none;
  border-radius: 50%;
  background: #fff;
  font-size: 22px;
  cursor: pointer;

  /* También encima */
  z-index: 2147483647;

  box-shadow: 0 6px 20px rgba(0,0,0,.3);
}

.popup-close:hover {
  background: #f2f2f2;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}