body {
  font-family: Arial, sans-serif;
  margin: auto;
  text-align: center;
}
#recaptcha-container {
  max-width: 600px;
  margin: auto;
}
#error-message {
  display: none;
  color: red;
  margin-top: 1rem;
}
#form-container {
  max-width: 100vw;
  width: 100vw;
}
#spinner {
  display: none;
  margin: 50px auto;
  width: 60px;
  height: 60px;
  border: 8px solid #f3f3f3; /* jasny obręcz */
  border-top: 8px solid #87cb27; /* kolor obręczy */
  border-radius: 50%;
  animation: spin 1s linear infinite;
}
@keyframes spin {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}