/* ==========================================================================
   Galerie — en-tête d'événement, grille photo, sélection, visionneuse
   ========================================================================== */

/* ---------- En-tête ---------- */
.gallery-header { margin-bottom: var(--space-6); }

.gallery-header #back { color: var(--muted); }
.gallery-header #back:hover { color: var(--ink); }

.gallery-header h1 {
  margin: var(--space-5) 0 var(--space-2);
  font-size: var(--text-3xl);
  font-weight: 800;
  letter-spacing: -0.035em;
}

.gallery-actions[hidden], .filterbar[hidden] { display: none; } /* galerie encore vide */
.gallery-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin: var(--space-6) 0 var(--space-5);
  padding-bottom: var(--space-6);
  border-bottom: 1px solid var(--border);
}

/* ---------- Grille photo (maçonnerie) ---------- */
.photo-grid {
  columns: 4 240px;
  column-gap: var(--space-3);
}

.compact-photos .photo-grid { columns: 6 150px; column-gap: var(--space-2); }

.photo-tile {
  position: relative;
  margin-bottom: var(--space-3);
  overflow: hidden;
  border-radius: var(--radius);
  background: var(--border);
  break-inside: avoid;
  animation: fade-in 0.4s var(--ease) both;
}

.compact-photos .photo-tile { margin-bottom: var(--space-2); border-radius: var(--radius-sm); }

.photo-tile img {
  width: 100%;
  height: auto;
  cursor: zoom-in;
  transition: transform 0.6s var(--ease), filter var(--fast);
}

.photo-tile:hover img { transform: scale(1.03); }

/* Voile au survol pour lisibilité des boutons */
.photo-tile::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(0, 0, 0, 0.28), transparent 40%);
  opacity: 0;
  transition: opacity var(--fast);
  pointer-events: none;
}

.photo-tile:hover::after,
.selecting .photo-tile::after { opacity: 1; }

.selecting .photo-tile img { cursor: pointer; }

.photo-tile.selected { box-shadow: 0 0 0 3px var(--blue); }
.photo-tile.selected img { transform: scale(0.94); border-radius: var(--radius-sm); }

.photo-check,
.photo-heart {
  position: absolute;
  top: var(--space-2);
  z-index: 2;
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.92);
  color: var(--ink);
  box-shadow: var(--shadow-sm);
  opacity: 0;
  transform: scale(0.9);
  transition: opacity var(--fast), transform var(--fast), background var(--fast), color var(--fast);
}

.photo-check svg,
.photo-heart svg { width: 17px; height: 17px; }

.photo-check { left: var(--space-2); }
.photo-heart { right: var(--space-2); }

.photo-tile:hover button,
.photo-tile:focus-within button,
.photo-tile.selected button,
.selecting .photo-check,
.photo-heart.favorite { opacity: 1; transform: none; }

.photo-check:hover,
.photo-heart:hover { transform: scale(1.08); }

.photo-tile.selected .photo-check { background: var(--blue); color: #fff; }

.photo-heart.favorite { background: var(--blue); color: #fff; }
.photo-heart.favorite svg { fill: currentColor; }

/* ---------- Barre de sélection ---------- */
.selectionbar {
  position: sticky;
  top: calc(var(--topbar-h) + var(--space-3));
  z-index: 15;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-5);
  padding: var(--space-2) var(--space-2) var(--space-2) var(--space-5);
  border-radius: var(--radius-lg);
  background: var(--gradient-sidebar);
  color: #fff;
  box-shadow: var(--shadow-lg);
  animation: rise-in 0.25s var(--ease);
}

.selectionbar strong { margin-right: auto; font-size: var(--text-sm); }

.selectionbar .btn:not(.primary) {
  border-color: rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
  box-shadow: none;
}

.selectionbar .btn:not(.primary):hover { background: rgba(255, 255, 255, 0.16); }
.selectionbar .icon { color: rgba(255, 255, 255, 0.75); }
.selectionbar .icon:hover { background: rgba(255, 255, 255, 0.12); color: #fff; }

/* ---------- Visionneuse plein écran ---------- */
.viewer {
  position: fixed;
  inset: 0;
  z-index: 80;
  display: flex;
  flex-direction: column;
  background: #050f1f;
  color: #fff;
  touch-action: none;
  animation: fade-in 0.2s var(--ease);
}

.viewer-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-5);
}

.viewer-top .row { gap: var(--space-1); }

.viewer .filename {
  margin-left: var(--space-2);
  color: rgba(255, 255, 255, 0.75);
  font-size: var(--text-sm);
  font-variant-numeric: tabular-nums;
}

.viewer .icon { color: rgba(255, 255, 255, 0.85); }
.viewer .icon:hover { background: rgba(255, 255, 255, 0.12); color: #fff; }

.viewer-stage {
  position: relative;
  flex: 1;
  min-height: 0;
  display: grid;
  place-items: center;
  overflow: hidden;
}

.viewer-stage img {
  max-width: min(92%, 1600px);
  max-height: calc(100vh - 140px);
  object-fit: contain;
  border-radius: 4px;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.5);
  animation: fade-in 0.3s var(--ease);
  transition: transform 0.2s var(--ease);
}

.viewer-prev,
.viewer-next {
  position: absolute;
  top: 50%;
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
  transform: translateY(-50%);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  transition: background var(--fast);
}

.viewer-prev:hover,
.viewer-next:hover { background: rgba(255, 255, 255, 0.2); }

.viewer-prev { left: var(--space-5); }
.viewer-next { right: var(--space-5); }

.viewer-bottom {
  padding: var(--space-4);
  color: rgba(255, 255, 255, 0.55);
  font-size: var(--text-xs);
  letter-spacing: 0.04em;
  text-align: center;
}

/* ---------- Responsive ---------- */
@media (max-width: 800px) {
  .compact-photos .photo-grid { columns: 4 100px; }
  .viewer-top { padding: var(--space-2); }
  .viewer .filename { max-width: 130px; overflow: hidden; white-space: nowrap; text-overflow: ellipsis; }
  .selectionbar { top: calc(var(--topbar-h) + var(--space-2)); border-radius: var(--radius-lg); }
}

@media (max-width: 580px) {
  .photo-grid { columns: 2; column-gap: var(--space-2); }
  .photo-tile { margin-bottom: var(--space-2); border-radius: var(--radius-sm); }
  .compact-photos .photo-grid { columns: 3; column-gap: 4px; }
  .compact-photos .photo-tile { margin-bottom: 4px; }
  .photo-check,
  .photo-heart { width: 30px; height: 30px; opacity: 1; transform: none; }
  .photo-tile:not(.selected) .photo-check { opacity: 0; }
  .selecting .photo-tile .photo-check { opacity: 1; }

  /* Barre d'actions de la galerie sur mobile : voir « Galerie : barre d'actions » dans modern.css. */

  .selectionbar { padding: var(--space-2); }
  .selectionbar strong { width: 100%; padding-left: var(--space-2); }
  .selectionbar .btn { min-height: 38px; padding: 8px 12px; }

  .viewer-prev { left: var(--space-2); }
  .viewer-next { right: var(--space-2); }
  .viewer-stage img { max-width: 100%; border-radius: 0; }
}