/* =============================================
   GALLERY.CSS — Gallery page styles
   ============================================= */

/* ---- Filter buttons ---- */
.gallery-filters {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
  margin-bottom: var(--space-xl);
}

.filter-btn {
  font-family: var(--font-body);
  font-size: var(--fs-sm);
  font-weight: 600;
  letter-spacing: 0.06em;
  padding: 0.5rem 1.4rem;
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
  background: var(--color-surface);
  transition: all var(--transition-base);
  cursor: pointer;
}

.filter-btn:hover,
.filter-btn.active {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-dark);
}

/* ---- Gallery grid (masonry-style) ---- */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-auto-rows: 220px;
  gap: var(--space-sm);
}

/* ---- Gallery item ---- */
.gallery-item {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  cursor: pointer;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.gallery-item.large  { grid-column: span 2; }
.gallery-item.tall   { grid-row: span 2; }

.gallery-item:hover {
  transform: scale(1.02);
  box-shadow: var(--shadow-md), 0 0 30px var(--color-accent-dim);
  border-color: var(--color-accent);
  z-index: 2;
}

/* ---- Placeholder (until real photos are added) ---- */
.gallery-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3.5rem;
  background: linear-gradient(135deg, var(--color-bg-3), var(--color-surface));
  transition: transform var(--transition-base);
}

.gallery-item:hover .gallery-placeholder {
  transform: scale(1.08);
}

/* ---- Hover overlay ---- */
.gallery-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(10,10,15,0.9) 0%, transparent 60%);
  display: flex;
  align-items: flex-end;
  padding: var(--space-sm) var(--space-md);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.gallery-item:hover .gallery-overlay {
  opacity: 1;
}

.gallery-overlay span {
  font-family: var(--font-body);
  font-size: var(--fs-sm);
  font-weight: 600;
  color: var(--color-white);
  letter-spacing: 0.04em;
}

/* ---- Hidden items (filtered out) ---- */
.gallery-item.hidden {
  display: none;
}

/* ---- Responsive ---- */
@media (max-width: 1024px) {
  .gallery-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 768px) {
  .gallery-grid {
    grid-template-columns: repeat(2, 1fr);
    grid-auto-rows: 180px;
  }

  .gallery-item.large { grid-column: span 2; }
  .gallery-item.tall  { grid-row: span 1; }
}

@media (max-width: 480px) {
  .gallery-grid {
    grid-template-columns: 1fr 1fr;
    grid-auto-rows: 150px;
  }
}

/* ---- Lightbox ---- */
.lightbox {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.9);
  z-index: 9999;
  align-items: center;
  justify-content: center;
  padding: var(--space-lg);
}

.lightbox.open {
  display: flex;
  animation: fade-in 0.25s ease;
}

.lightbox-inner {
  position: relative;
  width: 100%;
  max-width: 900px;
}

.lightbox-close {
  position: absolute;
  top: -2.5rem;
  right: 0;
  color: var(--color-white);
  font-size: var(--fs-xl);
  background: none;
  border: none;
  cursor: pointer;
  opacity: 0.7;
  transition: opacity var(--transition-fast);
  z-index: 2;
}

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

.lightbox-content {
  width: 100%;
}