/* ==========================================================================
   Galerie popup — visionneuse (maquette)

   Mosaïque + lightbox portés de la galerie projet (apps/project-gallery),
   bornés à la fenêtre « Images » d'une unité. Dépend des jetons de
   packages/design-tokens/brand.css (déjà chargés par la visionneuse).
   ========================================================================== */

#gallery-popup {
  position: fixed;
  inset: 0;
  z-index: 400;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 4vh 4vw;
  background: rgba(9, 9, 11, 0.55);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

#gallery-popup.is-open { display: flex; }

/* ---- fenêtre « grand format » ---- */
.gp-window {
  display: flex;
  flex-direction: column;
  width: min(1180px, 92vw);
  height: min(820px, 88vh);
  background: var(--bg);
  color: var(--ink);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.35);
}

.gp-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 18px 22px;
  border-bottom: 1px solid var(--border);
}

.gp-header-text { display: flex; align-items: baseline; gap: 12px; }

.gp-title {
  margin: 0;
  font-size: 1.25rem;
  font-weight: 400;
  letter-spacing: 0.02em;
}

.gp-count {
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--ink-muted);
  font-variant-numeric: tabular-nums;
}

.gp-close {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: transparent;
  color: var(--ink);
  cursor: pointer;
  transition: background-color 0.2s var(--ease);
}

.gp-close:hover { background: var(--bg-elevated-hover); }

/* ---- corps + mosaïque ---- */
.gp-body {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  padding: 22px;
}

.gp-mosaic {
  --mosaic-gap: 10px;
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  /* Rangée aussi haute qu'une colonne est large : chaque module est carré.
     La largeur de la mosaïque est celle de la fenêtre (92vw, plafonnée à
     1180px) moins les 2×22px de padding du corps. */
  grid-auto-rows: calc((min(1180px, 92vw) - 44px - 5 * var(--mosaic-gap)) / 6);
  grid-auto-flow: dense;
  gap: var(--mosaic-gap);
}

.gp-tile {
  position: relative;
  display: block;
  overflow: hidden;
  border-radius: 5px;
  grid-column: span 1;
  grid-row: span 1;
}

.gp-tile--w2 { grid-column: span 2; }
.gp-tile--h2 { grid-row: span 2; }

.gp-tile-media {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background-image:
    repeating-linear-gradient(90deg, var(--grid-line) 0 1px, transparent 1px 38px),
    repeating-linear-gradient(0deg, var(--grid-line) 0 1px, transparent 1px 38px),
    linear-gradient(150deg, var(--bg-elevated), var(--bg-elevated-hover));
  background-size: auto, auto, cover;
  transition: opacity 0.3s var(--ease), transform 0.6s var(--ease);
}

.gp-tile-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: var(--img, none);
  background-size: cover;
  background-position: center;
}

.gp-tile::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 2;
  border-radius: inherit;
  box-shadow: inset 0 0 0 1px var(--border);
  pointer-events: none;
}

.gp-tile::after {
  content: "";
  position: absolute;
  inset: 0;
  margin: auto;
  width: 44px;
  height: 44px;
  z-index: 3;
  background-color: var(--accent-fill);
  background-image: linear-gradient(var(--accent-on-fill), var(--accent-on-fill)),
                    linear-gradient(var(--accent-on-fill), var(--accent-on-fill));
  background-size: 14px 1px, 1px 14px;
  background-position: center, center;
  background-repeat: no-repeat;
  clip-path: polygon(0 0, 0 0, 0 100%, 0 100%);
  transition: clip-path 0.35s var(--ease);
}

.gp-tile:hover::after,
.gp-tile:focus-visible::after {
  clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%);
}

/* ---- lightbox (plein écran, comme la galerie) ---- */
.gp-lightbox {
  position: fixed;
  inset: 0;
  z-index: 410;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 48px;
  background: rgba(9, 9, 11, 0.9);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

.gp-lightbox.is-open { display: flex; }

.gp-lightbox-dialog {
  position: relative;
  display: grid;
  grid-template-columns: 60% 40%;
  width: 100%;
  height: 100%;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 5px;
  overflow: hidden;
}

.gp-lightbox-frame {
  position: relative;
  min-height: 0;
  overflow: hidden;
  background: var(--bg-elevated);
}

.gp-lightbox-close {
  position: absolute;
  top: 12px;
  right: 12px;
  z-index: 6;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border: none;
  border-radius: 5px;
  background: rgba(9, 9, 11, 0.72);
  color: #fff;
  cursor: pointer;
}

.gp-lightbox-close:hover { background: rgba(9, 9, 11, 0.92); }

.gp-lightbox-info {
  padding: clamp(32px, 4vw, 64px);
  display: flex;
  flex-direction: column;
  gap: 14px;
  overflow-y: auto;
  color: var(--ink);
  background: var(--bg-elevated);
}

.gp-lightbox-cat {
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--ink-muted);
}

.gp-lightbox-title {
  margin: 0;
  font-size: 1.35rem;
  font-weight: 300;
  letter-spacing: 0.01em;
  line-height: 1.3;
  padding-right: 42px;
}

.gp-lightbox-desc {
  margin: 6px 0 0;
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--ink-muted);
}

/* ---- carrousel (packages/gallery-ui) ---- */
#gallery-popup .carousel { position: absolute; inset: 0; }

/* Le carrousel partagé (packages/gallery-ui) injecte le logotype en
   filigrane sous chaque diapo ; il n'a pas lieu d'être ici (l'image est
   montrée en entier, le filigrane transparaissait à travers). */
#gallery-popup .cslide .tile-mark { display: none; }

#gallery-popup .carousel-track {
  display: flex;
  height: 100%;
  transition: transform 0.5s var(--ease);
  will-change: transform;
  touch-action: pan-y;
}

#gallery-popup .carousel.is-dragging .carousel-track,
#gallery-popup .carousel.no-anim .carousel-track { transition: none; }

#gallery-popup .cslide { position: relative; flex: 0 0 100%; height: 100%; overflow: hidden; }

#gallery-popup .cslide-media {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background-image:
    repeating-linear-gradient(90deg, var(--grid-line) 0 1px, transparent 1px 38px),
    repeating-linear-gradient(0deg, var(--grid-line) 0 1px, transparent 1px 38px),
    linear-gradient(150deg, var(--bg-elevated), var(--bg-elevated-hover));
}

#gallery-popup .cslide-media::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 2;
  background-image: var(--img, none);
  /* `contain` (et non `cover`) : l'image est montrée ENTIÈRE — les formats
     larges ou hauts ne sont plus rognés, des filets neutres comblent les
     bords au lieu de couper l'image. */
  background-size: contain;
  background-position: center;
  background-repeat: no-repeat;
}

#gallery-popup .cslide-num {
  position: absolute;
  left: 18px;
  top: 14px;
  z-index: 3;
  font-size: 2.4rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: #fff;
  opacity: 0.12;
  font-variant-numeric: tabular-nums;
}

#gallery-popup .carousel-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 4;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(9, 9, 11, 0.5);
  color: #fff;
  cursor: pointer;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  opacity: 0;
  transition: opacity 0.3s var(--ease);
}

#gallery-popup .carousel-prev { left: 16px; }
#gallery-popup .carousel-next { right: 16px; }

#gallery-popup .carousel:hover .carousel-arrow,
#gallery-popup .carousel:focus-within .carousel-arrow { opacity: 1; }

#gallery-popup .carousel-arrow:hover { background: rgba(9, 9, 11, 0.72); }

#gallery-popup .carousel-count {
  position: absolute;
  top: 16px;
  right: 16px;
  z-index: 4;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  font-variant-numeric: tabular-nums;
  color: #fff;
  background: rgba(9, 9, 11, 0.5);
  padding: 5px 11px;
  border-radius: 999px;
}

#gallery-popup .carousel-dots {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 16px;
  z-index: 4;
  display: flex;
  gap: 7px;
  justify-content: center;
  align-items: center;
}

#gallery-popup .carousel-dot {
  width: 7px;
  height: 7px;
  border-radius: 999px;
  padding: 0;
  border: none;
  background: rgba(255, 255, 255, 0.45);
  cursor: pointer;
  transition: width 0.3s var(--ease), background-color 0.3s var(--ease);
}

#gallery-popup .carousel-dot:hover { background: rgba(255, 255, 255, 0.7); }
#gallery-popup .carousel-dot.is-active { width: 22px; background: #fff; }

#gallery-popup .carousel.is-single .carousel-arrow,
#gallery-popup .carousel.is-single .carousel-count,
#gallery-popup .carousel.is-single .carousel-dots { display: none; }

/* ---- responsive ---- */
@media (max-width: 900px) {
  .gp-mosaic {
    grid-template-columns: repeat(4, 1fr);
    grid-auto-rows: calc((92vw - 44px - 3 * var(--mosaic-gap)) / 4);
  }
  #gallery-popup { padding: 2vh 2vw; }
}

@media (max-width: 620px) {
  .gp-mosaic {
    grid-template-columns: repeat(2, 1fr);
    grid-auto-rows: calc((92vw - 44px - var(--mosaic-gap)) / 2);
  }
  .gp-tile--w2 { grid-column: span 1; }
  .gp-tile--h2 { grid-row: span 1; }
  .gp-lightbox { padding: 12px; }
  .gp-lightbox-dialog { grid-template-columns: 1fr; grid-template-rows: auto minmax(0, 1fr); }
  .gp-lightbox-frame { aspect-ratio: 4 / 3; }
  .gp-lightbox-info { padding: 24px 20px 26px; }
}

@media (hover: none) {
  #gallery-popup .carousel-arrow { opacity: 1; }
}