body {
    margin: 0;
    padding: 0;
    font-family: 'Rubik';
}

.container.form_login_user {
    display: flex;
    justify-content: center;
    align-items: center;
}

.form_login_user .card {
    background-color: #fff;
    border-radius: 5px;
    box-shadow: 0px 0px 20px rgba(0,0,0,0.1);
    padding: 20px;
    width: 400px;
    box-sizing: border-box;
}

.form_login_user .card .card-body {
    box-sizing: border-box;
}

.form_login_user .card-header {
    font-size: 24px;
    font-weight: bold;
    margin-bottom: 20px;
    text-align: center;
}

.form_login_user .form-group {
    margin-bottom: 20px;
}

.form_login_user .form-label {
    font-size: 16px;
    font-weight: bold;
}

.form_login_user .form-control {
    border-radius: 5px;
    border: none;
    box-shadow: 0px 0px 10px rgba(0,0,0,0.1);
    height: 40px;
    padding: 10px;
    width: 100%;
    box-sizing: border-box;
    font-size: 16px;
}

.form_login_user .btn-primary {
    background-color: #007bff;
    border: none;
    border-radius: 5px;
    color: #fff;
    cursor: pointer;
    font-size: 16px;
    font-weight: bold;
    padding: 10px 20px;
    transition: background-color 0.2s ease-in-out;
    width: 100%;
    font-family: 'Rubik';
}

.form_login_user .btn-primary:hover {
    background-color: #0069d9;
}

.form_login_user .btn-link {
    color: #007bff;
    font-size: 14px;
    font-weight: bold;
    text-decoration: none;
}

.form_login_user .btn-link:hover {
    text-decoration: underline;
}

@media only screen and (max-width: 767px) {
    .container.form_login_user {
        display: block;
        box-sizing: border-box;
    }

    .form_login_user .card {
        background-color: #fff;
        border-radius: 5px;
        box-shadow: 0px 0px 20px rgba(0,0,0,0.1);
        padding: 20px;
        width: 100%;
    }

    .form_login_user .form-control {
        box-sizing: border-box;
    }
}