.payment-form-container {
    max-width: 600px;
    margin: 30px auto;
    padding: 25px;
    background: #ffffff;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    font-family: 'Helvetica Neue', Arial, sans-serif;
  }
  
  .payment-form-container h2 {
    text-align: center;
    margin-bottom: 20px;
    font-size: 26px;
    color: #333;
  }
  
  .payment-form-container label {
    display: block;
    margin-bottom: 8px;
    font-weight: bold;
    color: #555;
  }
  
  .payment-form-container input,
  .payment-form-container select {
    width: 100%;
    padding: 10px;
    margin-bottom: 18px;
    border: 1px solid #ccc;
    border-radius: 8px;
    background-color: #f9f9f9;
    font-size: 16px;
  }
  
  .payment-form-container input:focus,
  .payment-form-container select:focus {
    outline: none;
    border-color: #0073aa;
    background-color: #fff;
  }
  
  .payment-form-container button {
    width: 100%;
    padding: 12px;
    background-color: #0073aa;
    color: white;
    font-size: 18px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: background-color 0.3s ease;
  }
  
  .payment-form-container button:hover {
    background-color: #005f8c;
  }
  
  .payment-form-error {
    background: #ffe0e0;
    color: #d8000c;
    padding: 10px;
    margin-bottom: 20px;
    border-radius: 8px;
    text-align: center;
  }
  
  .payment-form-success {
    background: #e0ffe0;
    color: #4CAF50;
    padding: 10px;
    margin-bottom: 20px;
    border-radius: 8px;
    text-align: center;
  }