.sub-menu {
    padding: 2rem 4rem 2rem 2rem;
    gap: 3rem;
    background-color: var(--blue);

    margin-left: -2rem;
}

.sub-menu li a {
    color: var(--white);
}

.sub-menu {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    overflow: hidden;
    display: block;
    transition: all .3s ease;
}

nav li:hover .sub-menu, nav li:hover .sub-menu ul {
    opacity: 1;
    visibility: visible;
    pointer-events: all;
    overflow: visible;
}


header div .custom-logo-link {
    display: block;
    width: inherit;
}

header .header-items ul .sub-menu {
        display: flex;
        flex-direction: column;
        gap: 1rem;
        position: absolute;
}

header .logo {
    width: auto;
}


header {

    z-index: 9;

    width: 100%;
    background-color: var(--white);
    padding-top: var(--gap);
    padding-bottom: var(--gap);

    box-shadow: var(--shadow);
}

header .header-items.col {
    display: flex;
    justify-content: space-between;
    width: 100%;
    align-items: center;
    gap: 0 var(--headline);
}

.mobilenav {
    flex-grow: 1;
}

header .header-items ul {
    justify-content: flex-end;
    gap: 0 var(--gapmenu);
}


header .custom-logo {
    max-width: 25rem;
    width: 50vw;
}

header ul {
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
}

header ul a {
    font-size: var(--headerfontsize);
    color: var(--blue);
    font-weight: var(--bold);
}

nav a {
    text-decoration: none;
}

#hamburger {
    width: 3rem;
    height: 3rem;
    /* position: absolute; */
    margin-top: 1.5rem;
    -webkit-transform: rotate(0);
    -moz-transform: rotate(0);
    -o-transform: rotate(0);
    transform: rotate(0);
    -webkit-transition: 0.5s ease-in-out;
    -moz-transition: 0.5s ease-in-out;
    -o-transition: 0.5s ease-in-out;
    transition: 0.5s ease-in-out;
    cursor: pointer;
    right: 1.5rem;
    z-index: 99;
    position: sticky;
    top: var(--gap);
    display: none;
}

#hamburger span {
    display: block;
    position: absolute;
    height: 0.3rem;
    width: 100%;
    background: var(--blue);
    border-radius: 0.5rem;
    opacity: 1;
    left: 0;
    -webkit-transform: rotate(0);
    -moz-transform: rotate(0);
    -o-transform: rotate(0);
    transform: rotate(0);
    -webkit-transition: 0.25s ease-in-out;
    -moz-transition: 0.25s ease-in-out;
    -o-transition: 0.25s ease-in-out;
    transition: 0.25s ease-in-out;
    -webkit-transform-origin: left center;
    -moz-transform-origin: left center;
    -o-transform-origin: left center;
    transform-origin: left center;
}

#hamburger span:nth-child(1) {
    top: 0;
}

#hamburger span:nth-child(2) {
    top: 0.9rem;
}

#hamburger span:nth-child(3) {
    top: 1.8rem;
}

#hamburger.open span:nth-child(1) {
    -webkit-transform: rotate(45deg);
    -moz-transform: rotate(45deg);
    -o-transform: rotate(45deg);
    transform: rotate(45deg);
    top: -0.3rem;
    left: 0.2rem;

    background-color: var(--white);
}

#hamburger.open span:nth-child(2) {
    width: 0%;
    opacity: 0;
}

#hamburger.open span:nth-child(3) {
    -webkit-transform: rotate(-45deg);
    -moz-transform: rotate(-45deg);
    -o-transform: rotate(-45deg);
    transform: rotate(-45deg);
    top: 1.8rem;
    left: 0.2rem;

    background-color: var(--white);
}