/* Accueil : diaporama, commande de lecture et adaptation mobile. */

#pause-diaporama:focus-visible {
  outline: 3px solid #000;
  outline-offset: 2px;
}

/* Images de fond et commande de lecture. */

#diaporama {
  position: fixed;
  inset: 0;
  z-index: -1;
  background: #ededed;
}

#diaporama img {
  position: absolute;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity 1.8s;
}

#diaporama img.active {
  opacity: 1;
}

#pause-diaporama {
  position: fixed;
  bottom: 5px;
  right: 0;
  z-index: 11;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 0;
  color: #000;
  background: transparent;
  font: 16px/1 Arial, sans-serif;
  cursor: pointer;
}

/* Adaptation selon la largeur de l'écran. */

@media (max-width: 480px) {
  body.accueil {
    background: transparent;
  }

  body.accueil footer .mentions > span {
    position: relative;
    box-sizing: border-box;
    padding-right: 44px;
  }

  #pause-diaporama {
    position: absolute;
    top: 60%;
    right: -10px;
    bottom: auto;
    transform: translateY(-50%);
  }
}

/* Respect de la préférence de réduction des animations. */

@media (prefers-reduced-motion: reduce) {
  #diaporama img {
    transition: none;
  }
}