.number-flash {
  font-weight: bold;
  font-size: 18px;
  animation: flash 0.2s ease-in-out;
}
@keyframes flash {
  0% { opacity: 0.4; }
  100% { opacity: 1; }
}
.loading {
  color: transparent;
}
.loading::after {
  content: "";
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 2px solid #ccc;
  border-top-color: #007bff;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin {
  to { transform: rotate(360deg); }
}
.loading-spinner {
  width: 20px;
  height: 20px;
  border: 3px solid #ccc;
  border-top-color: #007bff;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin: auto;
}
@keyframes spin {
  to { transform: rotate(360deg); }
}