@media (max-width: 768px) {
  .signup-container {
    width: 90%; 
    padding: 16px;
  }

  .form .column {
    flex-direction: column;
  }

  .captcha-container {
    flex-direction: column; 
    gap: 10px; 
  }

  .captcha-image-refresh img {
    width: 100%; 
  }
}

@media (max-width: 480px) {
  .signup-container {
    padding: 12px;
  }

  .form :where(.input-box input, .select-box) {
    height: 36px; 
    font-size: 12px; 
  }

  .captcha-image-refresh img {
    width: 100%; 
  }
}