.mobile-register-box {
    max-width: 400px;
    margin: 80px auto;
    padding: 30px;
    background-color: #fdfdfd;
    border: 1px solid #dee2e6;
    border-radius: 12px;
    box-shadow: 0 0 15px rgba(0,0,0,0.05);
    text-align: center;
}

    .mobile-register-box h3 {
        margin-bottom: 25px;
        color: #3676ba;
    }

.profile-form-container h2 {
    text-align: center;
    color: #3676ba;
    margin-bottom: 30px;
} 
.mobile-register-box input {
        text-align: center;
        font-size: 18px;
    }

    .mobile-register-box .btn {
        width: 100%;
        font-size: 16px;
        padding: 10px;
    }

    .mobile-register-box .alert {
        margin-top: 15px;
    }
.btn-submit {
    background-color: #3676ba;
    color: white;
    border: none;
    padding: 12px 24px;
    font-size: 16px;
    border-radius: 8px;
    transition: background-color 0.3s ease;
}

    .btn-submit:hover {
        background-color: #2f65a0;
    }