/* Catalogo feretri — griglia + lightbox (shell condiviso: guide-*) */

.cat-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem 1.35rem;
}

.cat-item {
  margin: 0;
  background: transparent;
}

.cat-item__open {
  display: block;
  width: 100%;
  margin: 0;
  padding: 0;
  border: 0;
  background: var(--cream);
  border-radius: 2px;
  cursor: zoom-in;
  overflow: hidden;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.guide-section--paper .cat-item__open {
  background: var(--paper);
}

.cat-item__open:hover,
.cat-item__open:focus-visible {
  transform: translateY(-2px);
  box-shadow: 0 10px 28px -16px rgba(18, 38, 27, 0.35);
}

.cat-item__open:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 3px;
}

.cat-item__open img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: contain;
  background: inherit;
  transition: transform 0.4s ease;
}

.cat-item__open:hover img {
  transform: scale(1.02);
}

/* —— Lightbox gallery —— */
.cat-lightbox {
  position: fixed;
  inset: 0;
  z-index: 90;
  background: rgba(18, 38, 27, 0.9);
  display: grid;
  place-items: center;
  padding: 1.5rem;
}

.cat-lightbox[hidden] {
  display: none !important;
}

.cat-lightbox__close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  width: 2.6rem;
  height: 2.6rem;
  border: 1px solid rgba(224, 201, 122, 0.45);
  background: transparent;
  color: #f3eee0;
  font-size: 1.7rem;
  line-height: 1;
  cursor: pointer;
}

.cat-lightbox__close:hover {
  border-color: var(--gold);
  color: var(--gold);
}

.cat-lightbox__nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 2.75rem;
  height: 2.75rem;
  border: 1px solid rgba(224, 201, 122, 0.4);
  background: rgba(18, 38, 27, 0.45);
  color: #f3eee0;
  font-size: 1.75rem;
  line-height: 1;
  cursor: pointer;
}

.cat-lightbox__nav--prev { left: 0.75rem; }
.cat-lightbox__nav--next { right: 0.75rem; }

.cat-lightbox__nav:hover {
  border-color: var(--gold);
  color: var(--gold);
}

.cat-lightbox__figure {
  margin: 0;
  max-width: min(980px, 100%);
  max-height: calc(100vh - 3rem);
  display: grid;
  gap: 0.75rem;
  justify-items: center;
}

.cat-lightbox__figure img {
  max-width: 100%;
  max-height: calc(100vh - 7.5rem);
  width: auto;
  height: auto;
  object-fit: contain;
  background: #111;
  border: 1px solid rgba(224, 201, 122, 0.3);
}

.cat-lightbox__figure figcaption {
  text-align: center;
  color: #f3eee0;
  font-family: var(--font-display);
}

.cat-lightbox__figure strong {
  display: block;
  font-size: 1.25rem;
  font-weight: 500;
}

@media (max-width: 900px) {
  .cat-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem 1.1rem;
  }
}

@media (max-width: 720px) {
  .cat-grid {
    grid-template-columns: 1fr;
    gap: 1.35rem;
  }

  .cat-lightbox__nav {
    top: auto;
    bottom: 1rem;
    transform: none;
  }

  .cat-lightbox__nav--prev { left: calc(50% - 3.5rem); }
  .cat-lightbox__nav--next { right: calc(50% - 3.5rem); }
}

@media (prefers-reduced-motion: reduce) {
  .cat-item__open,
  .cat-item__open img {
    transition: none;
  }

  .cat-item__open:hover,
  .cat-item__open:hover img {
    transform: none;
  }
}