/* ============================================================
   Guitar Rigs – Gallery Grid + Lightbox
   Responsive image gallery with lightbox/slideshow overlay
   ============================================================ */

/* ─── Gallery Grid ──────────────────────────────────────── */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
  margin: var(--space-6) 0;
}

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

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

/* ─── Gallery Item ──────────────────────────────────────── */
.gallery-item {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  cursor: pointer;
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
  display: flex;
  flex-direction: column;
}

.gallery-item:hover,
.gallery-item:focus {
  transform: scale(1.02);
  border-color: var(--color-accent);
  box-shadow: 0 4px 12px rgba(33, 139, 220, 0.2);
  outline: none;
}

.gallery-item:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.gallery-item img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  display: block;
}

/* ─── Gallery Caption ───────────────────────────────────── */
.gallery-caption {
  padding: var(--space-2) var(--space-3);
  font-size: var(--fs-sm);
  color: var(--color-text-muted);
  text-align: center;
  margin: 0;
  line-height: 1.4;
}

/* ─── Lightbox Overlay ──────────────────────────────────── */
.lb-overlay {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background-color: rgba(0, 0, 0, 0.88);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s ease, visibility 0.25s ease;
}

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

/* ─── Lightbox Inner Container ──────────────────────────── */
.lb-inner {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  max-width: 90vw;
  max-height: 90vh;
  gap: var(--space-3);
}

/* ─── Lightbox Image ────────────────────────────────────── */
.lb-img {
  max-width: 90vw;
  max-height: 80vh;
  width: auto;
  height: auto;
  object-fit: contain;
  border-radius: var(--radius);
  display: block;
  border: 2px solid rgba(255, 255, 255, 0.1);
}

/* ─── Lightbox Caption ──────────────────────────────────── */
.lb-caption {
  color: #e0e0e0;
  font-size: var(--fs-sm);
  text-align: center;
  max-width: 60ch;
  line-height: 1.5;
  min-height: 1.2em;
  margin: 0;
}

/* ─── Lightbox Controls ─────────────────────────────────── */
.lb-controls {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.lb-close,
.lb-prev,
.lb-next {
  min-width: 44px;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-accent);
  color: var(--color-white);
  border: none;
  border-radius: var(--radius);
  font-size: 1.25rem;
  cursor: pointer;
  padding: var(--space-2) var(--space-3);
  transition: background-color var(--transition), transform var(--transition);
  line-height: 1;
}

.lb-close:hover,
.lb-prev:hover,
.lb-next:hover {
  background-color: var(--color-accent-dim);
  transform: scale(1.05);
}

.lb-close:focus-visible,
.lb-prev:focus-visible,
.lb-next:focus-visible {
  outline: 2px solid #ffffff;
  outline-offset: 2px;
}

/* Close button positioned at top-right of overlay */
.lb-close {
  position: absolute;
  top: -2.5rem;
  right: 0;
  font-size: 1.5rem;
  line-height: 1;
}

/* Counter indicator */
.lb-counter {
  color: var(--color-text-muted);
  font-size: var(--fs-xs);
  min-width: 4ch;
  text-align: center;
}