/* ============================================================
   Gallery Grid
   ============================================================ */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem;
  margin-top: 1.5rem;
}

@media (min-width: 640px) {
  .gallery-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (min-width: 960px) {
  .gallery-grid { grid-template-columns: repeat(4, 1fr); }
}
@media (min-width: 1200px) {
  .gallery-grid { grid-template-columns: repeat(5, 1fr); }
}

.gallery-item {
  position: relative;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  border-radius: var(--radius);
  background: var(--surface);
  cursor: pointer;
  list-style: none;
}

.gallery-item .thumb {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition), box-shadow var(--transition);
}

.gallery-item:hover .thumb {
  transform: scale(1.04);
}

.gallery-item::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: var(--radius);
  box-shadow: inset 0 0 0 1px rgba(255,255,255,0.06);
  pointer-events: none;
  opacity: 0;
  transition: opacity var(--transition);
}
.gallery-item:hover::after { opacity: 1; }

/* ============================================================
   Empty state
   ============================================================ */
.empty-state {
  text-align: center;
  padding: 5rem 1rem;
  color: var(--text-muted);
}
.empty-icon {
  font-size: 3.5rem;
  margin-bottom: 1rem;
  opacity: 0.4;
}
.empty-state h2 {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--text);
}

/* ============================================================
   Lightbox
   ============================================================ */
.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.92);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  animation: lb-fadein 0.25s ease;
}
.lightbox[hidden] { display: none; }

@keyframes lb-fadein {
  from { opacity: 0; }
  to   { opacity: 1; }
}

.lb-img-wrap {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  max-width: 90vw;
  max-height: 85vh;
}

#lb-img {
  max-width: 90vw;
  max-height: 85vh;
  object-fit: contain;
  border-radius: var(--radius);
  box-shadow: 0 8px 64px rgba(0,0,0,0.8);
}

.lb-spinner {
  position: absolute;
  width: 2rem;
  height: 2rem;
  border: 3px solid rgba(255,255,255,0.15);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  display: none;
}
.lb-spinner.active { display: block; }

@keyframes spin {
  to { transform: rotate(360deg); }
}

.lb-caption {
  margin-top: 0.75rem;
  color: rgba(255,255,255,0.6);
  font-size: 0.85rem;
  max-width: 90vw;
  text-align: center;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.lb-close,
.lb-prev,
.lb-next {
  position: fixed;
  background: rgba(255,255,255,0.08);
  border: none;
  color: #fff;
  cursor: pointer;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition);
  font-size: 1.4rem;
  line-height: 1;
  width: 2.75rem;
  height: 2.75rem;
}
.lb-close:hover, .lb-prev:hover, .lb-next:hover {
  background: rgba(255,255,255,0.18);
}

.lb-close { top: 1.25rem; right: 1.25rem; font-size: 1.6rem; }
.lb-prev  { left: 1rem;  top: 50%; transform: translateY(-50%); }
.lb-next  { right: 1rem; top: 50%; transform: translateY(-50%); }