/* ============================================
   GALLERY & FILTER
   ============================================ */

/* ---- Filter bar ---- */

.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1);
  margin-bottom: var(--space-5);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--color-border);
}

.filter-btn {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 8px 18px;
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
  background: transparent;
  transition: all var(--duration-base) var(--ease-out);
  cursor: pointer;
}

.filter-btn:hover {
  border-color: var(--color-text-muted);
  color: var(--color-text);
}

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

/* ---- Gallery grid ---- */

.gallery-grid {
  columns: 1;
  column-gap: var(--space-2);
}

@media (min-width: 640px) {
  .gallery-grid {
    columns: 2;
  }
}

@media (min-width: 1024px) {
  .gallery-grid {
    columns: 3;
  }
}

.gallery-item {
  break-inside: avoid;
  margin-bottom: var(--space-2);
  position: relative;
  overflow: hidden;
  cursor: pointer;
  background: var(--color-surface);
  display: block;
}

.gallery-item[hidden] {
  display: none;
}

.gallery-item img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform var(--duration-slow) var(--ease-out),
              filter var(--duration-slow) var(--ease-out);
}

.gallery-item:hover img {
  transform: scale(1.03);
  filter: brightness(0.75);
}

/* ---- Gallery item overlay ---- */

.gallery-item-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: var(--space-3);
  opacity: 0;
  transition: opacity var(--duration-base) var(--ease-out);
  background: linear-gradient(
    to top,
    rgba(0, 0, 0, 0.7) 0%,
    transparent 60%
  );
}

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

.gallery-item-title {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  color: var(--color-text);
  transform: translateY(8px);
  transition: transform var(--duration-base) var(--ease-out);
}

.gallery-item-cat {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
  transform: translateY(8px);
  transition: transform var(--duration-base) var(--ease-out) 50ms;
}

.gallery-item:hover .gallery-item-title,
.gallery-item:hover .gallery-item-cat {
  transform: translateY(0);
}

/* ---- Gallery count ---- */

.gallery-count {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin-bottom: var(--space-3);
  letter-spacing: 0.08em;
}

/* ---- Empty state ---- */

.gallery-empty {
  display: none;
  text-align: center;
  padding: var(--space-8) 0;
  color: var(--color-text-muted);
  font-size: var(--text-lg);
}

.gallery-empty.visible {
  display: block;
}