/* Styles pour la grille de références */

.reference-grid-section {
  padding: 4rem 2rem;
  margin-top: 20vh;
}

.reference-grid-title {
  font-size: clamp(1rem, 0.8rem + 3vw, 2.5rem);
  font-weight: 400;
  margin-bottom: 1rem;
  text-align: center;
}

/* Filtres */
.reference-filters {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 2rem;
  flex-wrap: wrap;
}

.filter-button {
  background-color: transparent;
  border: 1px solid #000;
  border-radius: 20px;
  padding: 0.5rem 1rem;
  cursor: pointer;
  transition: all 0.3s ease;
  font-size: 0.7rem;
}

.filter-button:hover {
  background-color: #000;
  color: #fff;
}

.filter-button.active {
  background-color: #000;
  color: #fff;
}

/* Grille de projets */
.reference-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  max-width: 80vw;
  margin: 7vh auto;
  min-height: 0;  /* Important pour le conteneur de grille */
  min-width: 0;   /* Important pour le conteneur de grille */
}

/* Conteneur de la grille pour maintenir la hauteur */
.reference-grid-container {
  min-height: 70vh; /* Hauteur minimale pour éviter les sauts */
  position: relative;
}

/* État initial - masqué par défaut */
.reference-item {
  position: relative;
  aspect-ratio: 1/1;
  overflow: hidden;
  width: 100%;
  opacity: 0;
  transition: opacity 0.3s ease-out;
  pointer-events: none;
}

/* Classe pour l'animation d'entrée */
.reference-item.initial-load {
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.3s ease-out, transform 0.3s ease-out;
}

/* Classe pour l'animation de sortie */
.reference-item.hidden {
  position: absolute !important;
  opacity: 0 !important;
  pointer-events: none !important;
  height: 1px !important;
  width: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  border: 0 !important;
  transform: none !important;
}

.reference-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.reference-info {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: rgba(0, 0, 0, 0.7);
  color: white;
  text-transform: uppercase;
  opacity: 0;
  font-size: clamp(0.6rem, 0.2rem + 1.5vw, 1.05rem);
  transition: opacity 0.3s ease;
  display: flex;
  justify-content: space-between;
  padding: 8px 16px;
  border-radius: 150px;
  margin: 5px;
}

.reference-item.visible {
  opacity: 1;
  pointer-events: auto;
}

.reference-item:hover .reference-info {
  opacity: 1;
}

/* État masqué */
.reference-item.hidden {
  position: absolute !important;
  opacity: 0 !important;
  pointer-events: none !important;
  height: 1px !important;
  width: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  border: 0 !important;
}

/* Media Queries */
@media (max-width: 1200px) {
  .reference-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 768px) {
  .reference-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
    max-width: 100%;
    padding: 0 1rem;
    margin: 2rem 1rem;
  }

  .reference-grid-section {
    padding: 0;
    margin-top: 0;
  }
  
  /* Format rectangulaire pour les images sur mobile */
  .reference-item {
    aspect-ratio: 3/4; /* Ratio plus rectangulaire (3:4) */
  }
}