.header__menu ul{
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
}

.header__menu li {
    margin: 0 4rem 0 0;
}

.header__menu li:last-child {
    margin: 0;
}

.header__menu li a {
    text-decoration: none;
    position: relative;
}

.header__menu li a::before {
    content: "";
    position: absolute;
    width: 100%;
    height: 1px;
    background: var(--color-text);
    bottom: -1px;
    opacity: 0;
    transition: 0.2s ease;
}

.header__menu li a,
.header__menu li a.selected{
	color: var(--color-text);
}

.header__menu li a:hover::before,
.header__menu li a.selected::before{
    opacity: 1;
}

.header__bottom .side-menu {
    display: flex;
    list-style: none;
    padding: 0;
    margin: 0;
}

.header__bottom .side-menu .side-menu__item {
    margin: 0 4rem 0 0;
    display: flex;
    align-items: center;
} 

.header__bottom .side-menu .side-menu__item:last-child {
    margin: 0;
}

.header__bottom .side-menu .side-menu__item > .side-menu__link,
.side-submenu__link {
    color: var(--color-text);
    text-decoration: none;
    position: relative;
}

.header__bottom .side-menu .side-menu__item:hover > .side-menu__link::before,
.header__bottom .side-menu .side-menu__item.is-active > .side-menu__link::before{
    content: "";
    position: absolute;
    width: 100%;
    height: 1px;
    background-color: var(--color-text);
    bottom: 2px;
}

.side-submenu__link {
    transition: 0.2s ease;
    display: block;
}

.side-submenu__link:hover {
    opacity: 0.6;
} 

.side-menu > .side-menu__item  {
    position: relative;
}

.side-menu > .side-menu__item > .side-submenu {
    position: absolute;
    top: 24px;
    left: 0;
    list-style: none;
    padding: 0;
    background-color: var(--color-bg);
    width: 24rem;
    border-radius: 0.8rem;
    z-index: 10;
    -webkit-box-shadow: 4px 4px 8px 0px rgba(34, 60, 80, 0.2);
    -moz-box-shadow: 4px 4px 8px 0px rgba(34, 60, 80, 0.2);
    box-shadow: 4px 4px 8px 0px rgba(34, 60, 80, 0.2);
    display: none;
}

.side-menu > .side-menu__item:hover > .side-submenu {
    display: block;
}

.side-menu > .side-menu__item > .side-submenu > .side-submenu__item > .side-submenu__link {
    white-space: nowrap;
}

.side-menu > .side-menu__item > .side-submenu > .side-submenu__item {
    margin: 0;
    position: relative;
    padding: 1rem 1.5rem;
}

.side-menu > .side-menu__item > .side-submenu > .side-submenu__item > .side-submenu {
    position: absolute;
    top: 0px;
    left: 100%;
    list-style: none;
    padding: 0;
    background-color: var(--color-bg);
    width: fit-content;
    border-radius: 0.8rem;
    z-index: 10;
    -webkit-box-shadow: 4px 4px 8px 0px rgba(34, 60, 80, 0.2);
    -moz-box-shadow: 4px 4px 8px 0px rgba(34, 60, 80, 0.2);
    box-shadow: 4px 4px 8px 0px rgba(34, 60, 80, 0.2);
    max-height: 50rem;
    overflow-y: auto;
    overflow-x: hidden;
    display: none;
    scrollbar-width: thin;             
    scrollbar-color: #888 #f1f1f1;
}

.side-submenu__item.side-submenu__item--lvl3 {
    margin: 0;
    padding: 1rem 1.5rem;
} 

.side-submenu__item.side-submenu__item--lvl3 .side-submenu__link {
    white-space: nowrap;
}

.side-menu > .side-menu__item > .side-submenu > .side-submenu__item:hover > .side-submenu {
    display: block;
}

.side-menu__burger {
    width: 26px;
    height: 27px;
    margin: 0 0.5rem 0 0;
}

.side-menu__close {
    width: 26px;
    height: 24px;
    margin: 0 0.5rem 0 0;
    display: none;
}

.header__bottom .side-menu .side-menu__item:hover .side-menu__burger {
    display: none;
}

.header__bottom .side-menu .side-menu__item:hover .side-menu__close {
    display: inline;
}