@media all and (min-width: 992px) {
    .navbar .nav-item .dropdown-menu{ display: none; }
    .navbar .nav-item:hover .nav-link{   }
    .navbar .nav-item:hover .dropdown-menu{ display: block; }
    .navbar .nav-item .dropdown-menu{ margin-top:0; }
}

@media only all and (max-width: 1369px) {
    .nav-link {

        margin-left: 5px;

        border-left: 1px solid #fff;
        line-height: 16px;
        font-size: 14px;
    }
    .btn_headline:hover {
        background: linear-gradient(to right, #3a829d 0%, #7dbecf 50%, #3a829d 100%);
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
    }
    .btn_headline {
        color: #ffffff !important;
    }
}

@media only all and (max-width: 992px) {
    .nav-link {

        margin-left: 5px;

        border-left: 1px solid #fff;
        line-height: 14px;
        font-size: 16px;
        margin-bottom: 8px;
    }
    .btn_headline:hover {
        background: linear-gradient(to right, #3a829d 0%, #7dbecf 50%, #3a829d 100%);
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
    }
    .menu_headline_first {
        margin-left: auto !important;
    }

}

@media only all and (max-width: 768px) {
    h2 {
        font-size: 2.5em;
    }
    .container-fluid {
        width: 90%;
        padding: 0;
    }
    .headline {
        text-align: left;
    }
    .virtual {
        letter-spacing: 7px;
    }
    .nav-link {

        margin-left: 5px;

        border-left: 1px solid #fff;
        line-height: 14px;
        font-size: 16px;
        margin-bottom: 8px;
    }
    .btn_headline:hover {
        background: linear-gradient(to right, #3a829d 0%, #7dbecf 50%, #3a829d 100%);
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
    }
    .navbar-brand {
        width: 80px;
        height: auto;
    }
    .navbar-brand-bs {
        width: 160px;
        height: auto;
    }
    .menu_headline_first {
        margin-left: auto !important;
    }

    .circle {
        padding: 5% 20%;
        background-color: #3a829d;
        color: #fff;
        z-index: 2;
        border-radius: 8px;
        font-size: 1.2em;
    }
}

@media only all and (max-width: 510px) {
    h2 {
        font-size: 1.3em;
    }
    .container-fluid {
        width: 90%;
        padding: 0;
    }
    .headline {
        text-align: left;
    }
}

@media only all and (max-width: 414px) {
    h2 {
        font-size: 1.3em;
    }
    .container-fluid {
        width: 90%;
        padding: 0;
    }
    .virtual {
        letter-spacing: 3.7px;
    }
}

@media only all and (max-width: 375px) {
    h2 {
        font-size: 1.2em;
    }
    .container-fluid {
        width: 90%;
        padding: 0;
    }
    .virtual {
        letter-spacing: 3px;
    }
}

@media only all and (max-width: 320px) {
    h2 {
        font-size: 1em;
    }
    .container-fluid {
        width: 90%;
        padding: 0;
    }
    .virtual {
        letter-spacing: 2.5px;
    }
}