/*
 * Module "Galerie" — grille + lightbox (voir up2a-galerie/inc/galerie.php).
 * Extrait de wordpress/plugins/up2a-core/assets/css/up2a-front-page.css
 * (scission documentée dans docs/06-storyboard.md). Dépend de
 * up2a-front-page.css (up2a-core) pour les tokens et les utilitaires
 * partagés (.up2a-section-inner, .up2a-section-title, .up2a-decor*, dont
 * la variante --galerie reste dans up2a-core : c'est le système de décor
 * central, pas un asset propre à ce module) — voir up2a-galerie.php pour
 * la déclaration de dépendance CSS.
 */

/* --- Galerie (scène 3 bis) --- */

.up2a-galerie {
  position: relative;
  overflow: hidden;
  padding: 88px 0;
  background: var(--up2a-color-surface);
}

.up2a-galerie__hint {
  text-align: center;
  color: var(--up2a-color-ink-soft);
  font-size: 0.875rem;
  margin: -20px 0 40px;
}

.up2a-galerie__grid {
  display: grid;
  grid-auto-flow: dense;
  grid-template-columns: repeat(4, 1fr);
  grid-auto-rows: 180px;
  gap: 18px;
}

.up2a-galerie__grid .up2a-galerie__item:nth-child(1) {
  grid-column: span 2;
  grid-row: span 2;
}

.up2a-galerie__grid .up2a-galerie__item:nth-child(5) {
  grid-column: span 2;
}

@media (max-width: 960px) {
  .up2a-galerie__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .up2a-galerie__grid .up2a-galerie__item:nth-child(5) {
    grid-column: span 1;
  }
}

.up2a-galerie__item {
  position: relative;
  display: block;
  width: 100%;
  height: 100%;
  padding: 0;
  border: none;
  border-radius: var(--up2a-radius-lg);
  overflow: hidden;
  cursor: zoom-in;
  box-shadow: var(--up2a-shadow-sm);
}

.up2a-galerie__item--featured {
  border: 3px solid var(--up2a-color-primary);
}

.up2a-galerie__featured-stack {
  position: absolute;
  inset: 0;
}

.up2a-galerie__featured-slide {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
}

.up2a-galerie__item--featured .up2a-galerie__featured-slide {
  transition: opacity 1.2s ease, transform var(--up2a-motion-base) ease;
}

.up2a-galerie__featured-slide.is-active {
  opacity: 1;
}

.up2a-galerie__item picture,
.up2a-galerie__item img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.up2a-galerie__item img {
  transition: transform var(--up2a-motion-base) ease;
}

.up2a-galerie__item:hover img {
  transform: scale(1.06);
}

.up2a-galerie__item::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(3, 18, 42, 0) 55%, rgba(3, 18, 42, 0.55) 100%);
  opacity: 0;
  transition: opacity var(--up2a-motion-fast) ease;
}

.up2a-galerie__item:hover::after,
.up2a-galerie__item:focus-visible::after {
  opacity: 1;
}

.up2a-galerie__caption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 10px;
  padding: 16px;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity var(--up2a-motion-fast) ease, transform var(--up2a-motion-fast) ease;
}

.up2a-galerie__item:hover .up2a-galerie__caption,
.up2a-galerie__item:focus-visible .up2a-galerie__caption {
  opacity: 1;
  transform: translateY(0);
}

.up2a-galerie__caption-text {
  color: #ffffff;
  font-weight: 700;
  font-size: 0.9375rem;
  text-align: left;
  text-shadow: 0 1px 4px rgba(3, 18, 42, 0.5);
}

.up2a-galerie__zoom {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.92);
  color: var(--up2a-color-primary);
}

@media (max-width: 640px) {
  .up2a-galerie__grid {
    grid-auto-rows: 180px;
  }

  .up2a-galerie__grid .up2a-galerie__item:nth-child(1) {
    grid-column: span 2;
    grid-row: span 1;
  }

  .up2a-galerie__caption {
    opacity: 1;
    transform: none;
    background: linear-gradient(180deg, rgba(3, 18, 42, 0) 40%, rgba(3, 18, 42, 0.65) 100%);
  }
}

.up2a-galerie__lightbox {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(3, 18, 42, 0.92);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--up2a-motion-fast) ease;
}

.up2a-galerie__lightbox.is-open {
  opacity: 1;
  visibility: visible;
}

.up2a-galerie__lightbox-figure {
  margin: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

.up2a-galerie__lightbox-img {
  max-width: min(1100px, 88vw);
  max-height: 78vh;
  border-radius: var(--up2a-radius-md);
  box-shadow: var(--up2a-shadow-lg);
  display: block;
}

.up2a-galerie__lightbox-caption {
  color: #ffffff;
  font-weight: 700;
  font-size: 1rem;
  text-align: center;
}

.up2a-galerie__lightbox-caption:empty {
  display: none;
}

.up2a-galerie__lightbox-count {
  position: absolute;
  left: 50%;
  bottom: 20px;
  transform: translateX(-50%);
  margin: 0;
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.8125rem;
  letter-spacing: 0.04em;
}

.up2a-galerie__lightbox-close,
.up2a-galerie__lightbox-nav {
  position: absolute;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: none;
  background: rgba(255, 255, 255, 0.12);
  color: #ffffff;
  cursor: pointer;
  transition: background-color var(--up2a-motion-fast) ease;
}

.up2a-galerie__lightbox-close:hover,
.up2a-galerie__lightbox-nav:hover {
  background: rgba(255, 255, 255, 0.24);
}

.up2a-galerie__lightbox-close {
  top: 20px;
  right: 20px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
}

.up2a-galerie__lightbox-nav {
  top: 50%;
  transform: translateY(-50%);
  width: 52px;
  height: 52px;
  border-radius: 50%;
  font-size: 2rem;
  line-height: 1;
}

.up2a-galerie__lightbox-nav--prev {
  left: 16px;
}

.up2a-galerie__lightbox-nav--next {
  right: 16px;
}

@media (max-width: 640px) {
  .up2a-galerie__lightbox-nav {
    width: 44px;
    height: 44px;
    font-size: 1.5rem;
  }
}