#loginBtn {
  padding: 10px 18px;
  border: none;
  background: #3b82f6;
  color: #fff;
  border-radius: 8px;
  cursor: pointer;
  font-size: 14px;
  min-width: 100px;
}

.spinner {
  width: 18px;
  height: 18px;
  border: 2px solid #fff;
  border-top: 2px solid transparent;
  border-radius: 50%;
  display: inline-block;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}