/* gallery-grid.css — Zephyr Design System */

[data-component="gallery-grid"] {
  background-color: var(--color-bg-warm);
}

.gallery-grid__heading {
  text-align: center;
  margin-bottom: var(--space-6);
  font-size: clamp(1.6rem, 3vw, var(--font-size-2xl));
}

/* --- Grille --- */
.gallery-grid__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-3);
}

@media (min-width: 640px) {
  .gallery-grid__grid { grid-template-columns: repeat(3, 1fr); }
}

.gallery-grid__item {
  overflow: hidden;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
}

/* --- Trigger bouton --- */
.gallery-grid__trigger {
  display: block;
  width: 100%;
  padding: 0;
  border: none;
  background: none;
  cursor: zoom-in;
  overflow: hidden;
}

.gallery-grid__trigger:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
}

/* --- Image --- */
.gallery-grid__img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  transition: transform var(--transition-base);
}

.gallery-grid__trigger:hover .gallery-grid__img,
.gallery-grid__trigger:focus  .gallery-grid__img {
  transform: scale(1.05);
}

/* --- Lightbox <dialog> --- */
.gallery-lightbox {
  max-width: min(95vw, 1200px);
  max-height: 95vh;
  padding: 0;
  border: none;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-elevated);
}

.gallery-lightbox::backdrop {
  background-color: rgba(0, 0, 0, 0.85);
}

.gallery-lightbox__close {
  position: absolute;
  top: var(--space-3);
  right: var(--space-3);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background-color: rgba(0, 0, 0, 0.6);
  color: #fff;
  border: none;
  cursor: pointer;
  font-size: var(--font-size-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: var(--z-dialog);
  transition: background-color var(--transition-fast);
}

.gallery-lightbox__close:hover { background-color: rgba(0, 0, 0, 0.85); }

.gallery-lightbox__close:focus-visible {
  outline: 2px solid #fff;
  outline-offset: 3px;
}

.gallery-lightbox__img {
  display: block;
  max-width: 100%;
  max-height: 90vh;
  object-fit: contain;
}