body {
    position: relative;
    padding: 0;
    margin: auto 0;
}

/*--- navigation bar ---*/
#navbar {
    top : 0;
    left : 0;
    right : 0;
    width : 100%;
    z-index : 1;
}
    .navbar {
        background: #f1f1f1;
        border-bottom: solid 5px #999;
    }

    .nav-link,
    .navbar-brand {
        color: #999;
        cursor: pointer;
    }

    .nav-link {
        margin-right: 1em !important;
    }

    .nav-link:hover {
        color: #777;
    }
    .navbar-brand span {
        font-style: italic;
    }
    .navbar-brand span:nth-of-type(2) {
        margin: auto 4px;
    }
    .navbar-brand span:nth-of-type(3) {
        color: #6ab446;
        font-weight: 800;
        font-size: 120%;
    }
    a.navbar-brand:hover,
    a.navbar-brand:hover span {
        color: #6ab446 !important;
    }

    .nav-link.lang {
        border: solid 0px #0000;
        border-radius: 60%;
        padding: 5px 0px;
        font-weight: 600;
        text-align: center;
        text-transform: uppercase;
        position: relative;
        top: 5px;
        min-width: 32px;
        font-size: 13px;
        min-height: 31px;
    }
        .nav-link.lang.es,
        .nav-link.lang.en:hover {
            background: #fff;
            color: #999;
        }
        .nav-link.lang.en,
        .nav-link.lang.es:hover {
            background: #ccc;
            color: #555;
        }

    .navbar-collapse {
        justify-content: flex-end;
    }

/*--- header ---*/

.header {
    background-image: url('/Libraries/images/header-background.jpg');
    background-size: cover;
    background-position: center;
    position: relative;
}
h2 {
    margin: 20px 0;
    width: 100%;
    display: block;
}

.overlay {
    position: absolute;
    min-height: 100%;
    min-width: 100%;
    left: 0;
    top: 0;
    background: rgba(0, 0, 0, 0.4);
}

.description {
    left: 50%;
    position: absolute;
    top: 45%;
    transform: translate(-50%, -55%);
    text-align: center;
}

.description h1 {
    color: #6ab446;
}

.description p {
    color: #fff;
    font-size: 1.3rem;
    line-height: 1.5;
}

.description button {
    border: 1px solid #6ab446;
    background: #6ab446;
    border-radius: 0;
    color: #fff;
}

.description button:hover {
    border: 1px solid #fff;
    background: #fff;
    color: #000;
}

/*--- feature section ---*/

.features {
    margin: 4em auto;
    padding: 1em;
    position: relative;
}

.feature-title {
    color: #333;
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 20px;
    text-transform: uppercase;
}

.features img {
    -webkit-box-shadow: 1px 1px 4px rgba(0, 0, 0, 0.4);
    -moz-box-shadow: 1px 1px 4px rgba(0, 0, 0, 0.4);
    box-shadow: 1px 1px 4px rgba(0, 0, 0, 0.4);
    margin-bottom: 16px;
}

.features .form-control,
.features input {
    border-radius: 0;
}

.features .btn {
    background-color: #589b37;
    border: 1px solid #589b37;
    color: #fff;
}

.features .btn:hover {
    background-color: #555;
    border: 1px solid #555;
}

sidebar {
    float: left;
    width: 100%;
    max-width: 200px;
    background-color: #f1f1f1;
    height: 100%;
    margin: 0 20px 0 0;
    padding: 0;
}
    sidebar p:first-of-type {
        margin-top: 20px;
    }
    sidebar p {
        margin-left: 10px;
        margin-right: 10px;
        font-size: 12px;
    }

/*--- footer ---*/
footer {
    clear: both;
}

.page-footer {
    background-color: #999;
    color: #333;
    padding: 60px 0 30px;
}

.footer-copyright {
    color: #555;
    padding: 40px 0;
}

.feature-title {
    color: #545b62;
}

.features .btn {
    border-bottom-width: 2px;
}
.features .btn.xfp,
.features .btn.xsu  {
    background-color: #f1f1f1;
    border: 1px solid #589b37;
    border-bottom-width: 2px;
    color: #555;
}
.features .btn:hover {
    background-color: #555;
    border: 1px solid #fff;
    border-bottom-width: 2px;
    color: #fff;
}
#errors {
    padding: 10px;
}
    #errors label {
        display: block;
        border-left: solid 4px red;
        padding-left: 10px;
    }


/*--- media queries ---*/

@media (max-width: 575.98px) {

    .description {
        left: 0;
        padding: 0 15px;
        position: absolute;
        top: 10%;
        transform: none;
        text-align: center;
    }

    .description h1 {
        font-size: 2em;
    }

    .description p {
        font-size: 1.2rem;
    }

    .features {
        margin: 0;
    }

}

form:not(.xsi) {
    width: 100%;
    font-size: 150%;
}
    form > div {
        margin: 0 auto;
        padding: 0;
    }

/*-- Login input fields --*/
.form-group {
    display: flex;
    align-items: top;
    border: none;
    padding: 0 0 10px;
    margin: 0 auto 2px !important;
}
    .form-group > span {
        display: inline-block;
        width: 100%;
    }
        .form-group .combo > span {
            display: inline-block;
            margin-right: 20px;
        }
        form#xf .form-group > span {
            max-width: 350px;
        }
        .form-group > label {
            display: inline-block;
            position: relative;
            top: 2px;
        }
        .form-group > label:first-of-type {
            width: 100%;
            max-width: 300px;
            border: solid 0 transparent;
            border-left: solid 2px transparent;
        }
        .form-group.req > label:first-of-type:before {
            content: '*';
            color: #f00;
            margin: 0 10px 0 0;
            float: right;
        }
        .form-group span label {
            display: inline-block;
            min-width: 100px;
            padding-right: 20px;
        }
        .form-group span label input[type=checkbox],
        .form-group span label input[type=radio] {
            margin: 0 4px 0 0;
            position: relative;
            top: 2px;
        }
        .form-group select {
            width: 100%;
            min-width: 200px;
        }
            .form-group .combo select {
                width: auto;
            }
        .form-group input[type=text],
        .form-group input[type=email],
        .form-group input[type=password] {
            padding-left: 4px;
            width: 72%;
        }
            .form-group input#captcha {
                width: 56%;
            }
            form#xf .form-group input[type=text],
            form#xf .form-group input[type=email],
            form#xf .form-group input[type=password] {
                width: 100%;
            }
            .form-group input[type=text] + span,
            .form-group input[type=email] + span,
            .form-group input[type=password] + span,
            .form-group input[type=button][id=captcha_bttn] + span,
            .form-gropu textarea + span,
            .form-group select + span {
                display: block;
                color: #777;
                font-style: italic;
                font-size: 80%;
            }
            input#captcha_bttn {
                background-color: #ccc;
                color: #000;
                padding: 1px 12px;
                border: none;
                height: 42px;
                min-width: 134px;
            }
a.xsu {
    background-color: #589b37;
    border: 1px solid #589b37;
    border-bottom-width: 2px;
    color: #fff;
}
a.xsu:hover {
    background-color: #555;
    border: solid 1px #fff;
    color: #fff;
}
@media (max-width: 800px) {
    .form-group {
        display: block;
    }
        .form-group.req > label:first-of-type:before {
            float: left;
            margin: 0 4px 0 0;
        }
        .form-group input[type=text], 
        .form-group input[type=email], 
        .form-group input[type=password] {
            width: 90%;
        }
        @media (max-width: 575.98px) {
            .form-group {
                margin-left: 5px !important;
            }
            .navbar-toggler-icon {
                    background-color: #999 !important;
            }
            .nav-link.lang {
                border-radius: 0%;
                min-width: 100%;
            }
        }
}