/* 123 — Lightbox
   Galerie avec visionneuse contenue dans la zone de démo (overlay absolu
   dans la racine, pas de position fixed). Ouverture/fermeture en FLIP :
   anim.js pose sur .lightbox__figure le transform inverse (translate+scale
   depuis le rect de la vignette) sans transition, puis la transition de la
   classe le ramène à l'identité — la vignette semble s'agrandir sur place.
   Backdrop en fondu, légende glissée avec délai, flèches de navigation qui
   apparaissent en scale, glissement directionnel entre images (.is-anim). */

.lightbox {
  position: relative;
  width: 320px;
  max-width: 100%;
  padding-top: 4px;
}

/* — Grille de vignettes — */
.lightbox__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}

.lightbox__thumb {
  position: relative;
  aspect-ratio: 3 / 2;
  padding: 0;
  border: 1px solid rgba(139, 145, 163, 0.18);
  border-radius: 10px;
  overflow: hidden;
  background: var(--ml-surface, #151a24);
  cursor: zoom-in;
  transition:
    transform 0.24s cubic-bezier(0.3, 1.2, 0.4, 1),
    border-color 0.2s ease,
    box-shadow 0.24s ease;
}

.lightbox__thumb svg {
  display: block;
  width: 100%;
  height: 100%;
}

.lightbox__thumb:hover {
  transform: translateY(-2px) scale(1.04);
  border-color: rgba(124, 140, 255, 0.4);
  box-shadow: 0 10px 22px -12px rgba(4, 7, 16, 0.9);
}

.lightbox__thumb:focus-visible {
  outline: none;
  border-color: var(--ml-accent, #7c8cff);
  box-shadow:
    0 0 0 2px var(--ml-bg, #0d1017),
    0 0 0 4px var(--ml-accent, #7c8cff);
}

/* Vignette source pendant l'ouverture : sa place reste vide */
.lightbox__thumb.is-origin {
  visibility: hidden;
  transition: none;
}

.lightbox__hint {
  margin-top: 8px;
  font-size: 10px;
  letter-spacing: 0.04em;
  color: var(--ml-muted, #8b91a3);
  opacity: 0.75;
  text-align: center;
}

/* — Overlay : contenu dans la racine, jamais fixed — */
.lightbox__overlay {
  position: absolute;
  inset: 0;
  z-index: 4;
}

.lightbox__overlay[hidden] {
  display: none;
}

.lightbox__backdrop {
  position: absolute;
  inset: 0;
  border: none;
  padding: 0;
  border-radius: 14px;
  background: rgba(6, 9, 17, 0.88);
  opacity: 0;
  cursor: zoom-out;
  transition: opacity 0.32s ease;
}

.lightbox__overlay.is-open .lightbox__backdrop {
  opacity: 1;
}

/* — Figure agrandie : cible du FLIP — */
.lightbox__figure {
  position: absolute;
  inset: 0;
  margin: auto;
  height: 68%;
  aspect-ratio: 3 / 2;
  max-width: 88%;
  border-radius: 12px;
  overflow: hidden;
  background: var(--ml-surface, #151a24);
  box-shadow: 0 22px 48px -18px rgba(3, 5, 12, 0.95);
  transform-origin: top left;
  will-change: transform;
  transition: transform 0.38s cubic-bezier(0.3, 1, 0.35, 1);
}

.lightbox__viewport {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.lightbox__slide {
  position: absolute;
  inset: 0;
  will-change: transform, opacity;
}

.lightbox__slide svg {
  display: block;
  width: 100%;
  height: 100%;
}

/* Glissement directionnel entre images (transforms posés par anim.js) */
.lightbox__slide.is-anim {
  transition:
    transform 0.34s cubic-bezier(0.3, 0.9, 0.3, 1),
    opacity 0.3s ease;
}

/* — Légende : glisse depuis le bas de la figure, avec délai — */
.lightbox__caption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  margin: 0;
  padding: 16px 12px 8px;
  font-size: 11px;
  font-weight: 600;
  color: var(--ml-fg, #e8eaf2);
  background: linear-gradient(to top, rgba(6, 9, 17, 0.85), rgba(6, 9, 17, 0));
  transform: translateY(110%);
  transition: transform 0.25s ease;
}

.lightbox__overlay.is-open .lightbox__caption {
  transform: translateY(0);
  transition: transform 0.3s cubic-bezier(0.3, 1, 0.35, 1) 0.14s;
}

/* — Contrôles : fermeture + navigation — */
.lightbox__close,
.lightbox__nav {
  position: absolute;
  display: grid;
  place-items: center;
  width: 26px;
  height: 26px;
  padding: 0;
  border: 1px solid rgba(139, 145, 163, 0.25);
  border-radius: 999px;
  background: rgba(21, 26, 36, 0.85);
  color: var(--ml-fg, #e8eaf2);
  font-size: 13px;
  line-height: 1;
  cursor: pointer;
  opacity: 0;
  transform: scale(0.7);
  pointer-events: none;
  transition:
    opacity 0.22s ease,
    transform 0.25s cubic-bezier(0.3, 1.4, 0.4, 1),
    border-color 0.2s ease,
    color 0.2s ease;
}

.lightbox__overlay.is-open .lightbox__close,
.lightbox__overlay.is-open .lightbox__nav {
  opacity: 1;
  transform: scale(1);
  pointer-events: auto;
  transition-delay: 0.16s;
}

.lightbox__close {
  top: 6px;
  right: 6px;
}

.lightbox__nav--prev {
  left: 6px;
  top: calc(50% - 13px);
}

.lightbox__nav--next {
  right: 6px;
  top: calc(50% - 13px);
}

.lightbox__close:hover,
.lightbox__nav:hover {
  border-color: var(--ml-accent, #7c8cff);
  color: var(--ml-accent, #7c8cff);
}

.lightbox__close:focus-visible,
.lightbox__nav:focus-visible {
  outline: none;
  border-color: var(--ml-accent, #7c8cff);
  box-shadow: 0 0 0 3px rgba(124, 140, 255, 0.35);
}

.lightbox__close svg,
.lightbox__nav svg {
  width: 11px;
  height: 11px;
}

/* — Reduced motion : apparition/disparition en fondu court, pas de FLIP — */
@media (prefers-reduced-motion: reduce) {
  .lightbox__thumb,
  .lightbox__figure,
  .lightbox__slide.is-anim,
  .lightbox__caption,
  .lightbox__overlay.is-open .lightbox__caption,
  .lightbox__close,
  .lightbox__nav {
    transition: none;
  }

  .lightbox__backdrop {
    transition: opacity 0.15s ease;
  }
}