body {
    overflow-x: hidden;
    font-family: 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol', 'Noto Color Emoji';
}

#gotop {
    background-color: var(--gotop-background-color);
    color: var(--gotop-font-color);
}
#gotop {
    display: inline-block;
    width: 50px;    
    text-align: center;
    border-radius: 4px;
    position: fixed;
    bottom: 30px;
    right: 30px;
    transition: background-color .3s, opacity .5s, visibility .5s;
    opacity: 0;
    visibility: hidden;
    z-index: 1000;
    font-size: 2.4em;
}
#gotop:hover {
    cursor: pointer;
    opacity: 0.6;
    background-color: var(--gotop-background-color-hover);  
}

a {
    color: var(--link-font-color);
}
a:hover {
    color: var(--link-font-color);
    opacity: 0.6;
    text-decoration: none;
}

img {
    max-width: 100%;
    /*height: auto;*/
}

.navbar {
    padding-top: 0;
}

.navbar .navbar-brand {
    padding-left: 10px;
    position: absolute;
    letter-spacing: 0;     
    font-size: var(--topmenu-brand-text-size);
    font-weight: var(--topmenu-brand-text-weight);
    color: var(--topmenu-brand-text-color);    
}
.navbar .navbar-brand:hover {
    color: var(--topmenu-brand-text-color);
    opacity: 0.6;
}

#navbarDesktop, #navbarMobile {
    background-color: var(--topmenu-background-color);
}

.navbar-expand .navbar-nav {
    padding: 15px;
}

.nav-item {
    font-size: var(--topmenu-font-size);
    font-weight: var(--topmenu-font-weight);
    padding-right: 10px;
}

.navbar-nav .nav-link.item1 {
    color: var(--topmenu-item1-color);
}

.navbar-nav .nav-link.itemR {
    color: var(--topmenu-itemR-color);
}

.navbar-nav .nav-link.item1:hover {
    color: var(--topmenu-item1-color);
    opacity: 0.6;
}

.navbar-nav .nav-link.itemR:hover {
    color: var(--topmenu-itemR-color);
    opacity: 0.6;
}

.masthead {
    padding-top: 80px;
}

.intro-text {
    position: absolute;
    padding: 20px;
    margin-top: var(--introtext-top-desktop);
    background-color: var(--introtext-background-color);
    color: var(--introtext-font-color);
}
.intro-text-mobile {
    background-color: var(--introtext-background-color);
    color: var(--introtext-font-color); 
    padding-top: 10px;
    padding-bottom: 10px;
}
.button-register-mobile {
    padding-top: 10px;
    text-align: center;    
}
.button-register-mobile a {
    font-size: var(--button-register-mobile-font-size);
}

.container {
    margin-top: 20px;
    padding-top: 20px;
    padding-bottom: 20px;
    padding-left: 0;
    padding-right: 0;
}
#mainNav .container {
    margin-top: 0;
    padding-top: 0;
}
.mobile-section .container {
    margin-top: 10px;
    padding-top: 10px;
}

.section-heading {
    font-size: var(--section-heading-font-size);
    font-weight: bold;
}

.section-subheading {
    font-size: var(--section-subheading-font-size);
}

footer {
    font-size: 14px;
}

#topRegisterMobile {
    position: absolute;
    padding-left: 10px;    
}

@media (min-width: 769px) {
    #navbarMobile, .button-register-mobile {
        display: none !important;
    }
}
@media (min-width: 992px) {
    .mobile-section {
        display: none !important;
    }
}

@media (max-width: 768.98px) {
    #navbarDesktop {
        display: none !important;
    }
    .navbar {
        padding-left: 0;
        padding-right: 0;
    }
    .intro-text {
        display: var(--introtext-mobile-display);
        margin-top: var(--introtext-top-mobile);
    }
    .container {       
        padding-left: 10px;
        padding-right: 10px;
        max-width: 100%;
        margin-top: 0;
    }
    .nav-item {
        padding-right: 0;
    }
}