/* Offline lightbox for .gallery-masonry images (light mode, close-only) */

.gallery-masonry .gallery-masonry-item img {
  cursor: zoom-in;
}

.sss-lightbox {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: rgba(255, 255, 255, 0.97);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 180ms ease-out, visibility 0s linear 180ms;
  touch-action: none;
  user-select: none;
  -webkit-user-select: none;
}

.sss-lightbox.is-open {
  opacity: 1;
  visibility: visible;
  transition: opacity 180ms ease-out;
}

.sss-lightbox__stage {
  position: relative;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 3rem 2.5rem;
  box-sizing: border-box;
}

.sss-lightbox__image {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.18);
  opacity: 0;
  transition: opacity 120ms ease-out;
  cursor: zoom-out;
}

.sss-lightbox__image.is-loaded {
  opacity: 1;
}

.sss-lightbox__close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: none;
  background: rgba(0, 0, 0, 0.06);
  color: #111;
  font-size: 20px;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 120ms ease-out, transform 120ms ease-out;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

.sss-lightbox__close:hover,
.sss-lightbox__close:focus-visible {
  background: rgba(0, 0, 0, 0.12);
  outline: none;
}

.sss-lightbox__close:active {
  transform: scale(0.94);
}

@media (max-width: 640px) {
  .sss-lightbox__stage { padding: 2.5rem 0.75rem; }
  .sss-lightbox__close { width: 38px; height: 38px; font-size: 18px; }
}

@media (prefers-reduced-motion: reduce) {
  .sss-lightbox,
  .sss-lightbox__image { transition: none; }
}

html.sss-lightbox-open, body.sss-lightbox-open {
  overflow: hidden;
}