*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    font-size: 100%;
    font-family: sans-serif;
    line-height: 1.15;
    -webkit-text-size-adjust: 100%;
}

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
        "Helvetica Neue", Arial, sans-serif;
    font-size: 1rem;
    font-weight: 400;
    line-height: 1.5;
    color: #212529;
    background: #fff;
}

a {
    color: inherit;
    text-decoration: none;
    background-color: transparent;
}

button {
    margin: 0;
    font: inherit;
}

body.gdr-header-test {
    width: 100%;
    height: 100vh;
    overflow: hidden;
}

.navbar {
    position: relative;
    z-index: 100;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: 40px 70px;
    background-color: transparent;
}

.logo img {
    display: block;
    width: 350px;
    height: auto;
    transition: all .35s ease-in-out;
}

.navbar-collapse {
    flex-basis: 100%;
    flex-grow: 1;
    align-items: center;
}

.navbar-nav {
    display: flex;
    flex-direction: column;
    padding-left: 0;
    margin-bottom: 0;
    list-style: none;
    gap: 20px;
}

.nav-link {
    display: block;
    padding: 0;
    font-weight: 300;
    font-size: 1.875rem;
    color: #f30b30;
    line-height: 1em;
}

.navbar-toggler {
    position: relative;
    padding: .25rem .75rem;
    font-size: 1.25rem;
    line-height: 1;
    border: none;
    background: transparent;
    margin-top: 30px;
    cursor: pointer;
}

.navbar-toggler:focus {
    outline: 0;
}

.icon-bar {
    width: 32px;
    height: 2px;
    background-color: #f30b30;
    display: block;
    transition: all .2s;
    margin-top: 6px;
}

.navbar-toggler.show .top-bar {
    transform: rotate(45deg);
    transform-origin: 15% 10%;
}

.navbar-toggler.show .middle-bar {
    opacity: 0;
}

.navbar-toggler.show .bottom-bar {
    transform: rotate(-45deg);
    transform-origin: 10% 90%;
}

.navbar-toggler .top-bar {
    transform: rotate(0);
}

.navbar-toggler .middle-bar {
    opacity: 1;
}

.navbar-toggler .bottom-bar {
    transform: rotate(0);
}

.link-contatti {
    right: -22px;
    float: right;
}

.link-about,
.link-contatti {
    transition: all .35s ease-in-out;
    position: fixed;
    top: 50%;
    transform: rotate(-90deg);
    font-size: 2em;
    color: #f30b30;
    font-weight: 300;
    text-decoration: none;
}

.link-about {
    left: 0;
    float: left;
}

a.nav-link::after,
a.link-about::after,
a.link-contatti::after {
    content: "";
    position: relative;
    left: 0;
    display: inline-block;
    width: 100%;
    border-top: 1px solid;
    opacity: 0;
    transition: opacity .35s, transform .35s;
    transform: scaleX(0);
    color: #f30b30 !important;
}

a.nav-link::after {
    height: 15px;
}

a.link-about::after,
a.link-contatti::after {
    height: 1em;
}

a.nav-link:hover::after,
a.link-about:hover::after,
a.link-contatti:hover::after {
    opacity: 1;
    transform: scale(1);
    color: #f30b30;
}

@media (min-width: 992px) {

    .navbar {
        flex-flow: row nowrap;
        justify-content: space-between;
    }

    .navbar-collapse {
        display: flex;
        flex-basis: auto;
        flex-grow: 1;
        justify-content: flex-end;
    }

    .navbar-nav {
        flex-direction: row;
        margin-left: auto;
        padding-bottom: 20px;
    }

    .navbar-toggler {
        display: none;
    }
}

@media (max-width: 991.98px) {

    .navbar-collapse {
        display: none;
        background: #fff;
        z-index: 999;
        width: 100%;
        flex-basis: 100%;
    }

    .navbar-collapse.show {
        display: block;
    }

    .navbar-toggler {
        display: block;
    }

    .navbar-nav {
        display: block;
        padding-bottom: 20px;
    }

    .nav-link {
        font-size: 1.875rem;
        line-height: 1.5em;
    }

    .link-about,
    .link-contatti {
        font-size: 1.875rem;
        color: #f30b30;
        transition: all .35s ease-in-out;
        left: 0;
        float: none;
        position: relative;
        transform: none;
        font-weight: 300;
        text-decoration: none;
        line-height: 1.5em;
    }

    .link-about {
        top: -10px;
        width: 34%;
    }

    .link-contatti {
        top: -45px;
        margin-bottom: -90px;
        width: 30%;
    }

    .link-portfolio {
        width: 33%;
    }

    .link-progetti {
        width: 25%;
    }

    .link-tutorial {
        width: 30%;
    }

    .link-articoli {
        width: 30%;
    }
}

@media (max-width: 768px) {

    .navbar {
        padding: 0 25px !important;
    }

    .logo img,
    .navbar {
        transition: all .35s ease-in-out;
    }

    .logo img {
        transform: scale(.6);
        margin-left: -40px;
    }

    .navbar-toggler {
        margin-top: 20px;
    }

    .link-about,
    .link-contatti {
        transition: all .35s ease-in-out;
    }
}

@media (max-width: 480px) {

    .logo img {
        transform: scale(.6);
        margin-left: -70px;
        margin-right: -15px;
    }

    .navbar-toggler {
        margin-top: 40px;
    }

    .link-about {
        line-height: 1.8em;
    }

    .link-about,
    .link-contatti,
    .link-portfolio,
    .link-progetti,
    .link-tutorial,
    .link-articoli {
        transition: all .35s ease-in-out;
        font-size: 1.375rem;
    }
}

@media (max-width: 320px) {

    .logo img {
        transition: all .35s ease-in-out;
        transform: scale(.5);
        margin-left: -85px;
        margin-right: -100px;
    }

    .link-about {
        line-height: 2em;
        width: 35%;
    }

    .link-about,
    .link-contatti,
    .link-portfolio,
    .link-progetti,
    .link-tutorial,
    .link-articoli {
        transition: all .35s ease-in-out;
        font-size: 1.25rem;
    }
}