/* Navigation retour */
.mbami-back-button {
  position: fixed;
  top: 86px;
  left: 18px;
  z-index: 90;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 42px;
  padding: 9px 14px;
  border: 1px solid rgba(11,31,58,.14);
  border-radius: 12px;
  background: rgba(255,255,255,.96);
  color: var(--navy, #0b1f3a);
  box-shadow: 0 5px 18px rgba(15,23,42,.12);
  font: 700 14px/1 Arial, Helvetica, sans-serif;
  cursor: pointer;
  transition: transform .15s ease, box-shadow .15s ease, background .15s ease;
}
.mbami-back-button:hover {
  transform: translateY(-1px);
  box-shadow: 0 7px 22px rgba(15,23,42,.16);
  background: #fff;
}
.mbami-back-button:focus-visible {
  outline: 3px solid rgba(200,155,60,.45);
  outline-offset: 2px;
}
.mbami-back-icon {
  font-size: 22px;
  line-height: 1;
}
@media (max-width: 640px) {
  .mbami-back-button {
    top: 78px;
    left: 10px;
    min-height: 40px;
    padding: 8px 11px;
  }
  .mbami-back-label { display: none; }
}