/* =========================================================
   Lightbox — universal image overlay
   ========================================================= */

/* Hoverable images */
img.lightbox-trigger {
  cursor: zoom-in;
}

/* Overlay */
#lightbox-overlay {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: rgba(0, 0, 0, 0.85);
  display: flex;
  align-items: center;
  justify-content: center;

  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s ease, visibility 0.25s ease;
}

#lightbox-overlay.lb-open {
  opacity: 1;
  visibility: visible;
}

/* Image wrapper (handles scale animation) */
#lightbox-img-wrap {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  transform: scale(0.92);
  transition: transform 0.25s ease;
}

#lightbox-overlay.lb-open #lightbox-img-wrap {
  transform: scale(1);
}

/* The image itself */
#lightbox-img {
  display: block;
  max-width: 90vw;
  max-height: 90vh;
  width: auto;
  height: auto;
  object-fit: contain;
  border-radius: 3px;
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.6);
  user-select: none;
  -webkit-user-drag: none;
}

/* Close button */
#lightbox-close {
  position: fixed;
  top: 16px;
  right: 20px;
  z-index: 10001;
  background: none;
  border: none;
  color: #fff;
  font-size: 2rem;
  line-height: 1;
  cursor: pointer;
  padding: 4px 10px;
  opacity: 0.8;
  transition: opacity 0.15s;
}

#lightbox-close:hover {
  opacity: 1;
}

/* Navigation arrows */
#lightbox-prev,
#lightbox-next {
  position: fixed;
  top: 50%;
  transform: translateY(-50%);
  z-index: 10001;
  background: rgba(255, 255, 255, 0.12);
  border: none;
  color: #fff;
  font-size: 2rem;
  line-height: 1;
  cursor: pointer;
  padding: 14px 18px;
  border-radius: 4px;
  opacity: 0.75;
  transition: opacity 0.15s, background 0.15s;
  user-select: none;
}

#lightbox-prev { left: 12px; }
#lightbox-next { right: 12px; }

#lightbox-prev:hover,
#lightbox-next:hover {
  opacity: 1;
  background: rgba(255, 255, 255, 0.22);
}

#lightbox-prev.lb-hidden,
#lightbox-next.lb-hidden {
  display: none;
}

/* Counter */
#lightbox-counter {
  position: fixed;
  bottom: 18px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 10001;
  color: rgba(255, 255, 255, 0.65);
  font-size: 0.85rem;
  font-family: sans-serif;
  pointer-events: none;
}

#lightbox-counter.lb-hidden {
  display: none;
}

/* Mobile: hide arrows on small screens (swipe handles nav) */
@media (max-width: 600px) {
  #lightbox-prev,
  #lightbox-next {
    display: none;
  }
}