#menu__toggle {
    opacity: 0;
}

#menu__toggle:checked ~ .menu__btn > span {
    transform: rotate(45deg);
}
#menu__toggle:checked ~ .menu__btn > span::before {
    top: 0;
    transform: rotate(0);
}
#menu__toggle:checked ~ .menu__btn > span::after {
    top: 0;
    transform: rotate(90deg);
}
#menu__toggle:checked ~ .menu__box {
    visibility: visible;
    left: 0;
}

.menu__btn {
    display: flex;
    align-items: center;
    position: fixed;
    top: 20px;
    left: 20px;

    width: 26px;
    height: 26px;

    cursor: pointer;
    z-index: 3;
}

.menu__btn > span,
.menu__btn > span::before,
.menu__btn > span::after {
    display: block;
    position: absolute;

    width: 100%;
    height: 2px;

    background-color: #616161;

    transition-duration: .25s;
}
.menu__btn > span::before {
    content: '';
    top: -8px;
}
.menu__btn > span::after {
    content: '';
    top: 8px;
}

.menu__box {
    display: block;
    position: fixed;
    visibility: hidden;
    top: 0;
    left: -100%;

    width: 300px;
    z-index: 2;
    height: 100%;

    margin: 0;
    padding: 80px 0;

    list-style: none;

    background-color: #ECEFF1;
    box-shadow: 1px 0px 6px rgba(0, 0, 0, .2);

    transition-duration: .25s;
}

.menu__item {
    display: block;
    padding: 12px 24px;

    color: #333;

    font-family: 'Roboto', sans-serif;
    font-size: 20px;
    font-weight: 600;

    text-decoration: none;

    transition-duration: .25s;
}
.menu__item:hover {
    background-color: #CFD8DC;
}

.hamburger-menu {
    display: none;
}

@media (max-width: 800px) {
    .hamburger-menu {
        display: block;
        position: fixed;
        z-index: 2;
        height: 60px;
        box-shadow: 0px 4px 4px 0px #0000000D;
        display: block;
        width: 100%;
        background-color: white;
    }

    header > .row {
        display: none;
    }

    header .main-menu, header #languages {
        display: none;
    }

    #logo {
        display: block;
        height: 60px;
        margin-top: 5px;
        margin-right: -25px;
    }

    header {
        height: 60px;
        margin-top: 0px;
    }

    .hamburger-menu .mod-menu {
        display: block;

    }

    .hamburger-menu .nav-item a {
        border-bottom: none;
        font-size: 17px;
    }

    .mod-menu li {
        margin-top: 20px;
    }

    .hamburger-menu .mod-languages {
        text-align: center;
        margin-top: 30px;
    }
    header .active a, header .nav-item:hover a {
        border-bottom: none;
    }
    div.mod-languages ul {
        display: block !important;
    }
    header .nav-item a {
        padding: 1px 20px;
    }
}