.message-box {
        margin-top: 20px;
        min-height: 30px;
        font-size: 18px;
        font-weight: 600;
    }
    .message-box.success {
        color: #7ddf9e;
    }
    .message-box.error {
        color: #ff6b6b;
    }
    .privacy {
        display: block;
        margin-top: 15px;
        color: #6a7f94;
        font-size: 13px;
    }
    @media (max-width: 600px) {
        .input-group input,
        .input-group button {
            flex: 1 1 100%;
        }
    }