@keyframes spin {
  0%   { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

.cf7-ai-loader .spinner {
  border: 3px solid #ccc;
  border-top: 3px solid #0073aa;
  border-radius: 50%;
  width: 24px;
  height: 24px;
  animation: spin 1s linear infinite;
}