#chatUploadStatus {
  padding: 4px 12px;
  font-size: 13px;
  color: var(--muted, #666);
}
#chatUploadStatus:not([hidden])::before {
  content: "";
  display: inline-block;
  width: 10px;
  height: 10px;
  margin-right: 8px;
  border: 2px solid currentColor;
  border-right-color: transparent;
  border-radius: 50%;
  animation: upload-feedback-spin 1s linear infinite;
}
@keyframes upload-feedback-spin { to { transform: rotate(360deg); } }
@media (prefers-reduced-motion: reduce) {
  #chatUploadStatus::before { animation: none !important; }
}