/* =========================
   GALERÍA LIGHTBOX
========================= */

.foto-lightbox-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  margin: 2rem 0;
}

.foto-lightbox-thumb {
  aspect-ratio: 1 / 1;
  overflow: hidden;
  border-radius: 8px;
  cursor: pointer;
  background: #eee;
}

.foto-lightbox-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.foto-lightbox-thumb:hover img {
  transform: scale(1.05);
  opacity: 0.85;
}

/* Overlay */
.foto-lightbox-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(17, 137, 166, 0.93);
  z-index: 1000;
  align-items: center;
  justify-content: center;
}

.foto-lightbox-overlay.active {
  display: flex;
}

.foto-lightbox-overlay img {
  max-width: 90vw;
  max-height: 85vh;
  object-fit: contain;
  border-radius: 6px;
  display: block;
}

.foto-lightbox-close {
  position: absolute;
  top: 1.2rem;
  right: 1.5rem;
  color: #fff;
  font-size: 2.2rem;
  cursor: pointer;
  line-height: 1;
  background: none;
  border: none;
  opacity: 0.8;
  transition: opacity 0.2s;
}

.foto-lightbox-close:hover {
  opacity: 1;
}

.foto-lightbox-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(255,255,255,0.15);
  border: none;
  color: #fff;
  font-size: 2.5rem;
  padding: 0.6rem 1rem;
  cursor: pointer;
  border-radius: 6px;
  transition: background 0.2s;
  line-height: 1;
}

.foto-lightbox-btn:hover {
  background: rgba(255,255,255,0.3);
}

.foto-lightbox-btn.prev { left: 1rem; }
.foto-lightbox-btn.next { right: 1rem; }

.foto-lightbox-counter {
  position: absolute;
  bottom: 1.2rem;
  left: 50%;
  transform: translateX(-50%);
  color: rgba(255,255,255,0.7);
  font-size: 0.9rem;
}

/* Responsive */
@media (max-width: 768px) {
  .foto-lightbox-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}