.velchat-link-guard-toast {
  position: fixed;
  left: 50%;
  bottom: calc(84px + env(safe-area-inset-bottom, 0px));
  transform: translateX(-50%) translateY(18px);
  max-width: min(92vw, 520px);
  padding: 12px 16px;
  border-radius: 999px;
  background: rgba(20, 20, 24, 0.94);
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  line-height: 1.35;
  text-align: center;
  z-index: 999999;
  opacity: 0;
  pointer-events: none;
  transition: opacity .2s ease, transform .2s ease;
  box-shadow: 0 8px 28px rgba(0,0,0,.35);
}
.velchat-link-guard-toast.is-visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}