/* Floating Sync button + toast */
#sync-btn{
  position: fixed;
  right: 14px;
  bottom: 18px;
  z-index: 9999;
  width: 44px;
  height: 44px;
  border-radius: 999px;
  border: 0;
  font-size: 20px;
  line-height: 1;
  box-shadow: 0 6px 20px rgba(0,0,0,.25);
  background: #2a1a0d;
  color: #fff;
  cursor: pointer;
}
#sync-btn:active{ transform: translateY(1px); }

#sync-toast{
  position: fixed;
  left: 50%;
  bottom: 72px;
  transform: translateX(-50%);
  padding: 8px 12px;
  background: rgba(0,0,0,.85);
  color: #fff;
  border-radius: 8px;
  font-size: 14px;
  opacity: 0;
  pointer-events: none;
  transition: opacity .2s ease;
  z-index: 9999;
}
#sync-toast.show{ opacity: 1; }