/* ====== Lightbox navigation arrows ====== */
.lightbox-prev, .lightbox-next {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(255,255,255,0.9);
  border: none;
  font-size: 28px;
  line-height: 1;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  cursor: pointer;
  box-shadow: 0 4px 10px rgba(0,0,0,0.25);
  transition: background 0.2s ease, opacity 0.2s ease;
}
.lightbox-prev:hover, .lightbox-next:hover {
  background: rgba(255,255,255,1);
}
.lightbox-prev { left: 20px; }
.lightbox-next { right: 20px; }

@media (max-width: 768px){
  .lightbox-prev, .lightbox-next { display: none; }
}