.share-feedback {
  position: fixed;
  left: 50%;
  bottom: 24px;
  z-index: 2147483647;
  max-width: calc(100vw - 32px);
  padding: 10px 16px;
  border-radius: 6px;
  background: rgba(0, 0, 0, 0.78);
  color: #fff;
  font-size: 14px;
  line-height: 1.4;
  text-align: center;
  font-family: inherit;
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, 12px);
  transition: opacity 0.2s ease, transform 0.2s ease;
  visibility: hidden;
}

.share-feedback-visible {
  opacity: 1;
  transform: translate(-50%, 0);
  visibility: visible;
}

.share-feedback-error {
  background: #8b1e1e;
}