/* ==========================================================================
   EMSTYLAR — Styles spécifiques à la page Galerie (gallery.html)
   ==========================================================================
   Filtres, grille de cartes et lightbox. Le page-hero, les sections et
   séparateurs réutilisent les composants partagés de components.css.
   ========================================================================== */

/* --------------------------------------------------------------------
   Barre de filtres
   -------------------------------------------------------------------- */
.gallery-filters {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-2xs);
  margin-bottom: var(--space-lg);
}

.gallery-filters__btn {
  padding: var(--space-2xs) var(--space-md);
  font-family: var(--font-body);
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  color: var(--color-text);
  background-color: transparent;
  border: var(--border-width-sm) solid var(--color-border-strong);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: background-color var(--transition-fast), color var(--transition-fast),
    border-color var(--transition-fast);
}

.gallery-filters__btn:hover {
  border-color: var(--color-gold);
  color: var(--color-gold-ink);
}

.gallery-filters__btn.is-active {
  background-color: var(--color-black);
  border-color: var(--color-black);
  color: var(--color-white);
}

/* --------------------------------------------------------------------
   Grille (réutilise .grid--auto de layout.css) + cartes
   -------------------------------------------------------------------- */
.gallery-grid {
  list-style: none;
}

.gallery-grid__item {
  aspect-ratio: 3 / 4;
}

.gallery-grid__item[hidden] {
  display: none;
}

.gallery-card {
  position: relative;
  display: block;
  width: 100%;
  height: 100%;
  padding: 0;
  overflow: hidden;
  background: none;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
}

.gallery-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.gallery-card:hover img,
.gallery-card:focus-visible img {
  transform: scale(1.07);
}

.gallery-card__overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  gap: 2px;
  padding: var(--space-sm);
  background-image: linear-gradient(180deg, rgba(10, 10, 10, 0) 55%, rgba(10, 10, 10, 0.82) 100%);
  text-align: left;
  color: var(--color-white);
  opacity: 0.92;
  transition: opacity var(--transition-base);
}

.gallery-card:hover .gallery-card__overlay,
.gallery-card:focus-visible .gallery-card__overlay {
  opacity: 1;
}

.gallery-card__category {
  font-size: var(--fs-xs);
  font-weight: var(--fw-semibold);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-gold);
}

.gallery-card__title {
  font-family: var(--font-heading);
  font-size: var(--fs-md);
}

/* --------------------------------------------------------------------
   État vide (catégorie sans réalisation pour l'instant)
   -------------------------------------------------------------------- */
.gallery-empty {
  padding: var(--space-xl) var(--space-md);
  text-align: center;
  color: var(--color-text-muted);
}

.gallery-empty[hidden] {
  display: none;
}

/* --------------------------------------------------------------------
   Lightbox
   -------------------------------------------------------------------- */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: var(--z-modal);
  display: flex;
  align-items: center;
  justify-content: center;
}

.lightbox[hidden] {
  display: none;
}

/* Verrouille le scroll de la page pendant que la lightbox est ouverte */
.has-lightbox-open {
  overflow: hidden;
}

.lightbox__backdrop {
  position: absolute;
  inset: 0;
  background-color: rgba(10, 10, 10, 0.92);
}

.lightbox__figure {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  max-width: min(90vw, 900px);
  margin: 0;
  animation: lightbox-in var(--duration-slow) var(--ease-out);
}

@keyframes lightbox-in {
  from {
    opacity: 0;
    transform: scale(0.96);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

.lightbox__image {
  max-width: 100%;
  max-height: 75vh;
  object-fit: contain;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
}

.lightbox__caption {
  margin-top: var(--space-sm);
  text-align: center;
  color: var(--color-white);
}

.lightbox__category {
  display: block;
  font-size: var(--fs-xs);
  font-weight: var(--fw-semibold);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-gold);
}

.lightbox__title {
  display: block;
  margin-top: 2px;
  font-family: var(--font-heading);
  font-size: var(--fs-lg);
}

.lightbox__close,
.lightbox__nav {
  position: absolute;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  background-color: rgba(248, 245, 240, 0.1);
  color: var(--color-white);
  border: var(--border-width-sm) solid rgba(248, 245, 240, 0.3);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: background-color var(--transition-fast);
}

.lightbox__close:hover,
.lightbox__nav:hover {
  background-color: rgba(248, 245, 240, 0.2);
}

.lightbox__close {
  top: var(--space-md);
  right: var(--space-md);
  font-size: var(--fs-xl);
}

.lightbox__nav {
  top: 50%;
  transform: translateY(-50%);
  font-size: var(--fs-2xl);
}

.lightbox__nav--prev {
  left: var(--space-sm);
}

.lightbox__nav--next {
  right: var(--space-sm);
}

@media (min-width: 768px) {
  .lightbox__nav--prev {
    left: var(--space-lg);
  }

  .lightbox__nav--next {
    right: var(--space-lg);
  }
}