/* ═══════════════════════════════════════
   Lightbox — Cooker's Restoration
   ═══════════════════════════════════════ */

/* ── Thumbnail gallery grid ── */
.thumb-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 0.75rem;
  margin-top: 2rem;
}

.thumb-item {
  position: relative;
  aspect-ratio: 4/3;
  overflow: hidden;
  border-radius: 3px;
  background: var(--cream-dark);
  cursor: pointer;
}

.thumb-item img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.35s ease;
  display: block;
}

.thumb-item:hover img { transform: scale(1.06); }

.thumb-overlay {
  position: absolute;
  inset: 0;
  background: rgba(26,63,92,0);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.25s;
}

.thumb-item:hover .thumb-overlay { background: rgba(26,63,92,0.35); }

.thumb-overlay svg {
  width: 32px; height: 32px;
  color: white;
  opacity: 0;
  transition: opacity 0.25s;
}

.thumb-item:hover .thumb-overlay svg { opacity: 1; }

/* ── Lightbox overlay ── */
.lb {
  position: fixed;
  inset: 0;
  z-index: 9000;
  background: rgba(0,0,0,0.96);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s, visibility 0.25s;
}

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

.lb-stage {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%; height: 100%;
}

.lb-img {
  max-width: 90vw;
  max-height: 88vh;
  object-fit: contain;
  border-radius: 2px;
  box-shadow: 0 8px 48px rgba(0,0,0,0.6);
  transition: opacity 0.2s;
  user-select: none;
  -webkit-user-drag: none;
}

.lb-img.lb-loading { opacity: 0; }

/* ── Controls ── */
.lb-close {
  position: absolute;
  top: 1.25rem; right: 1.5rem;
  z-index: 9010;
  background: none;
  border: none;
  color: rgba(255,255,255,0.65);
  cursor: pointer;
  font-size: 2rem;
  line-height: 1;
  padding: 0.25rem 0.5rem;
  transition: color 0.2s;
}
.lb-close:hover { color: white; }

.lb-prev, .lb-next {
  position: absolute;
  top: 50%; transform: translateY(-50%);
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.18);
  border-radius: 3px;
  color: white;
  cursor: pointer;
  font-size: 1.75rem;
  padding: 1rem 0.75rem;
  transition: background 0.2s, border-color 0.2s;
  z-index: 9010;
  line-height: 1;
}

.lb-prev { left: 1.25rem; }
.lb-next { right: 1.25rem; }

.lb-prev:hover, .lb-next:hover {
  background: rgba(255,255,255,0.16);
  border-color: rgba(255,255,255,0.4);
}

.lb-prev:disabled, .lb-next:disabled {
  opacity: 0.25;
  cursor: default;
}

/* ── Counter ── */
.lb-counter {
  position: absolute;
  bottom: 1.25rem; left: 50%;
  transform: translateX(-50%);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  color: rgba(255,255,255,0.5);
  white-space: nowrap;
}

/* ── Caption ── */
.lb-caption {
  position: absolute;
  bottom: 1.25rem; left: 4rem; right: 4rem;
  text-align: center;
  font-size: 0.75rem;
  font-weight: 300;
  color: rgba(255,255,255,0.55);
  letter-spacing: 0.5px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ── Film strip ── */
.lb-strip {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 72px;
  overflow-x: auto;
  overflow-y: hidden;
  display: flex;
  gap: 4px;
  padding: 6px 8px;
  background: rgba(0,0,0,0.4);
  scrollbar-width: thin;
  scrollbar-color: rgba(255,255,255,0.2) transparent;
}

.lb-strip::-webkit-scrollbar { height: 4px; }
.lb-strip::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.2); border-radius: 2px; }

.lb-strip-item {
  flex-shrink: 0;
  width: 80px; height: 60px;
  object-fit: cover;
  border-radius: 2px;
  cursor: pointer;
  opacity: 0.5;
  border: 2px solid transparent;
  transition: opacity 0.2s, border-color 0.2s;
}

.lb-strip-item.active {
  opacity: 1;
  border-color: var(--red);
}

.lb-strip-item:hover { opacity: 0.85; }

/* ── Responsive ── */
@media (max-width: 720px) {
  .thumb-grid { grid-template-columns: repeat(2, 1fr); gap: 0.5rem; }
  .lb-prev { left: 0.5rem; padding: 0.75rem 0.5rem; }
  .lb-next { right: 0.5rem; padding: 0.75rem 0.5rem; }
  .lb-strip { display: none; }
  .lb-img { max-width: 96vw; max-height: 80vh; }
}

@media (max-width: 480px) {
  .thumb-grid { grid-template-columns: 1fr; }
}