/* ARCANIS UI 19.4.5 — bouton retour en haut responsive */
/* =========================
   BOUTON RETOUR EN HAUT
========================= */
.arcanis-back-to-top[hidden] {
  display: none !important;
}

.arcanis-back-to-top {
  position: fixed;
  right: calc(1.5rem + env(safe-area-inset-right, 0px));
  bottom: calc(2.5rem + env(safe-area-inset-bottom, 0px));
  z-index: 99990;

  display: flex;
  align-items: center;
  justify-content: center;

  width: 62px;
  height: 62px;
  margin: 0;
  padding: 0;
  border: 0;
  border-radius: 18px;
  appearance: none;
  -webkit-appearance: none;

  background: #e9c58b;
  color: var(--arcanis-white, #ffffff);
  box-shadow: var(--arcanis-shadow-floating);

  font: inherit;
  line-height: 0;
  cursor: pointer;
  opacity: 0;
  transform: translateY(14px) scale(0.96);
  pointer-events: none;

  transition:
    opacity 0.25s ease,
    transform 0.25s ease,
    background-color 0.25s ease,
    box-shadow 0.25s ease;
  contain: layout paint;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
}

.arcanis-back-to-top.is-visible {
  opacity: 1;
  transform: translateY(0) scale(1);
  pointer-events: auto;
}

.arcanis-back-to-top:focus-visible {
  background: #e9c58b;
  color: var(--arcanis-white, #ffffff);
  box-shadow: var(--arcanis-shadow-floating);
  outline: 3px solid rgba(233, 197, 139, 0.72);
  outline-offset: 4px;
}

@media (hover: hover) and (pointer: fine) {
  .arcanis-back-to-top:hover {
    background: #e9c58b;
    color: var(--arcanis-white, #ffffff);
    box-shadow: var(--arcanis-shadow-hover);
    transform: translateY(-2px) scale(1.02);
  }
}

.arcanis-back-to-top svg {
  display: block;
  width: 30px;
  height: 30px;
  flex: 0 0 auto;
  transform: translateY(-1px);
}

@media (max-width: 900px) {
  .arcanis-back-to-top {
    right: calc(1rem + env(safe-area-inset-right, 0px));
    bottom: calc(5rem + env(safe-area-inset-bottom, 0px));
  }
}

@media (prefers-reduced-motion: reduce) {
  .arcanis-back-to-top {
    transition: none !important;
  }
}