/*
 * HolDent — Block: Photo Gallery
 */

.holdent-photo-gallery {
  padding-block: var(--space-4xl);
}

.holdent-photo-gallery--alternate { background: var(--color-alternate); }
.holdent-photo-gallery--canvas    { background: var(--color-canvas); }

.holdent-photo-gallery__header {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
}

@media (min-width: 768px) {
  .holdent-photo-gallery__header {
    grid-template-columns: 2fr 1fr;
    align-items: end;
  }
}

.holdent-photo-gallery__overline {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: var(--space-sm);
}

.holdent-photo-gallery__title {
  font-family: var(--font-headline);
  font-weight: 700;
  font-size: clamp(28px, 4vw, 40px);
  line-height: 1.15;
}

.holdent-photo-gallery__subtitle {
  font-size: var(--fs-body-s);
  line-height: var(--lh-body);
  color: var(--color-text-muted);
  max-width: 320px;
  text-align: right;
}

.holdent-photo-gallery__grid {
  display: grid;
  gap: var(--space-md);
  grid-template-columns: 1fr;
  grid-auto-rows: 1fr;
}

@media (min-width: 640px) {
  .holdent-photo-gallery__grid--2col { grid-template-columns: repeat(2, 1fr); }
  .holdent-photo-gallery__grid--3col { grid-template-columns: repeat(2, 1fr); }
  .holdent-photo-gallery__grid--4col { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
  .holdent-photo-gallery__grid--3col { grid-template-columns: repeat(3, 1fr); }
  .holdent-photo-gallery__grid--4col { grid-template-columns: repeat(4, 1fr); }
}

.holdent-photo-gallery__item {
  margin: 0;
  border-radius: var(--radius-xl);
  overflow: hidden;
  aspect-ratio: 4 / 3;
  position: relative;
  background: var(--color-alternate);
}

.holdent-photo-gallery__image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform var(--transition-slow);
}

.holdent-photo-gallery__item:hover .holdent-photo-gallery__image {
  transform: scale(1.05);
}

@media (prefers-reduced-motion: reduce) {
  .holdent-photo-gallery__item:hover .holdent-photo-gallery__image {
    transform: none;
  }
}

.holdent-photo-gallery__caption {
  position: absolute;
  left: var(--space-md);
  bottom: var(--space-md);
  padding: 4px 12px;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-ink);
}

/* Masonry-featured: prima immagine 2x2 (solo su md+) */
@media (min-width: 768px) {
  .holdent-photo-gallery__grid--masonry-featured .holdent-photo-gallery__item--featured {
    grid-row: span 2;
    grid-column: span 2;
    aspect-ratio: 1 / 1;
  }
}

/* ----------------------------------------------------------------
   Trigger lightbox (button wrapper)
   ---------------------------------------------------------------- */

.holdent-photo-gallery__trigger {
  appearance: none;
  border: 0;
  background: transparent;
  padding: 0;
  cursor: zoom-in;
  position: relative;
  display: block;
  width: 100%;
  height: 100%;
  overflow: hidden;
  border-radius: var(--radius-md);
}

.holdent-photo-gallery__trigger:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
}

.holdent-photo-gallery__trigger img {
  transition: transform 400ms cubic-bezier(0.22, 1, 0.36, 1);
}

.holdent-photo-gallery__trigger:hover img,
.holdent-photo-gallery__trigger:focus-visible img {
  transform: scale(1.04);
}

.holdent-photo-gallery__zoom {
  position: absolute;
  bottom: 12px;
  right: 12px;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.92);
  color: var(--color-ink);
  box-shadow: var(--shadow-md);
  /* Audit 08giu2026 #8: badge zoom sempre visibile (affordance), pieno al hover/focus */
  opacity: 0.85;
  transform: translateY(0);
  transition: opacity 200ms ease, transform 200ms ease;
  pointer-events: none;
}

.holdent-photo-gallery__trigger:hover .holdent-photo-gallery__zoom,
.holdent-photo-gallery__trigger:focus-visible .holdent-photo-gallery__zoom {
  opacity: 1;
  transform: scale(1.05);
}

@media (prefers-reduced-motion: reduce) {
  .holdent-photo-gallery__trigger img,
  .holdent-photo-gallery__zoom {
    transition: none;
  }
  .holdent-photo-gallery__trigger:hover img,
  .holdent-photo-gallery__trigger:focus-visible img {
    transform: none;
  }
}