#header-button {
    width: 1.8rem;
    height: 1.8rem;
    position: relative;
}

#header-button div {
    position: absolute;
    left: 0;
    right: 0;
    width: 2rem;
    height: 2px;
    border-radius: 2rem;
    background-color: var(--color-blue);
    transition: 500ms ease-in-out;
}

#header-button div:nth-child(1) {
    top: 0;
}

#header-button div:nth-child(2) {
    top: calc(1rem - 3px);
}

#header-button div:nth-child(3) {
    bottom: 0;
}

#header-mobile.landing #header-button div,
#header-mobile.transparent #header-button div,
#header-mobile.open #header-button div {
    background-color: var(--color-white);
}


/* HEADER OPEN */
#header-mobile.open #header-button div:nth-child(1) {
    transform: rotate(45deg);
    top: .8rem;
    left: -.3rem;
    width: 2.4rem;
}

#header-mobile.open #header-button div:nth-child(2) {
    width: 0;
}

#header-mobile.open #header-button div:nth-child(3) {
    transform: rotate(-45deg);
    top: .8rem;
    left: -.3rem;
    width: 2.4rem;
}