    padding: 10px;
                flex-direction: column;
            }
        }

        .error-message {
            color: red;
            font-weight: bold;
            margin-bottom: 10px;
            display: flex;
            justify-content: center;
        }

        .button-container {
            display: flex;
            justify-content: center;
            margin-top: 20px;
        }

        .btn {
            background-color: #4CAF50;
            color: white;
            border: none;
 