#lightbox-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.95);
  justify-content: center;
  align-items: center;
  z-index: 9999;
}

#lightbox-overlay img {
  max-width: 90%;
  max-height: 90%;
  object-fit: contain;
}

#lightbox-close {
  position: absolute;
  top: 20px;
  right: 30px;
  font-size: 40px;
  color: white;
  cursor: pointer;
}

.lb-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  font-size: 50px;
  color: white;
  cursor: pointer;
  padding: 20px;
}

#lightbox-prev { left: 20px; }
#lightbox-next { right: 20px; }