header {
    z-index: 998;
}

.menu-item, .menu-open-button {
    background: #00bcd4;
    border-radius: 100%;
    width: 50px;
    height: 50px;
    margin-left: 0;
    position: absolute;
    top: 20px;
    color: white;
    text-align: center;
    line-height: 50px;
    -webkit-transform: translate3d(0, 0, 0);
    transform: translate3d(0, 0, 0);
    -webkit-transition: -webkit-transform ease-out 200ms;
    transition: -webkit-transform ease-out 200ms;
    transition: transform ease-out 200ms;
    transition: transform ease-out 200ms, -webkit-transform ease-out 200ms;
}

.menu-open {
    display: none;
}

.hamburger {
    width: 25px;
    height: 3px;
    background: white;
    display: block;
    position: absolute;
    top: 50%;
    left: 50%;
    margin-left: -12.5px;
    margin-top: -1.5px;
    -webkit-transition: -webkit-transform 200ms;
    transition: -webkit-transform 200ms;
    transition: transform 200ms;
    transition: transform 200ms, -webkit-transform 200ms;
}

.hamburger-1 {
    -webkit-transform: translate3d(0, -8px, 0);
    transform: translate3d(0, -8px, 0);
}

.hamburger-2 {
    -webkit-transform: translate3d(0, 0, 0);
    transform: translate3d(0, 0, 0);
}

.hamburger-3 {
    -webkit-transform: translate3d(0, 8px, 0);
    transform: translate3d(0, 8px, 0);
}

.menu-open:checked + .menu-open-button .hamburger-1 {
    -webkit-transform: translate3d(0, 0, 0) rotate(45deg);
    transform: translate3d(0, 0, 0) rotate(45deg);
}

.menu-open:checked + .menu-open-button .hamburger-2 {
    -webkit-transform: translate3d(0, 0, 0) scale(0.1, 1);
    transform: translate3d(0, 0, 0) scale(0.1, 1);
}

.menu-open:checked + .menu-open-button .hamburger-3 {
    -webkit-transform: translate3d(0, 0, 0) rotate(-45deg);
    transform: translate3d(0, 0, 0) rotate(-45deg);
}

.menu {
    position: absolute;
    left: 10px;
    margin-left: 0;
    padding-top: 20px;
    padding-left: 0px;
    width: 80px;
    height: 80px;
    box-sizing: border-box;
    font-size: 20px;
    text-align: left;
    top: 10px;
    z-index: 998;
}

.menu-item span {
    display: none;
    color: #fff;
    font-weight: 400;
    position: absolute;
    font-size: 15px;
    left: 110%;
    top: 0;
    -webkit-transition: all ease-out 200ms;
    transition: all ease-out 200ms;
}

.menu-open:checked ~ .menu-item span {
    display: block
}

.menu-item:hover span {
    text-decoration: none;
    font-size: 18px;
}

.menu-item:hover {
    background: white;
    color: #00bcd4;
}

.menu-item:nth-child(3) {
    -webkit-transition-duration: 180ms;
    transition-duration: 180ms;
}

.menu-item:nth-child(4) {
    -webkit-transition-duration: 180ms;
    transition-duration: 180ms;
}

.menu-item:nth-child(5) {
    -webkit-transition-duration: 180ms;
    transition-duration: 180ms;
}

.menu-item:nth-child(6) {
    -webkit-transition-duration: 180ms;
    transition-duration: 180ms;
}

.menu-item:nth-child(7) {
    -webkit-transition-duration: 180ms;
    transition-duration: 180ms;
}

.menu-item:nth-child(8) {
    -webkit-transition-duration: 180ms;
    transition-duration: 180ms;
}

.menu-item:nth-child(9) {
    -webkit-transition-duration: 180ms;
    transition-duration: 180ms;
}

.menu-item:nth-child(10) {
    -webkit-transition-duration: 180ms;
    transition-duration: 180ms;
}

.menu-item:nth-child(11) {
    -webkit-transition-duration: 180ms;
    transition-duration: 180ms;
}

.menu-open-button {
    z-index: 998;
    -webkit-transition-duration: 400ms;
    transition-duration: 400ms;
    -webkit-transform: scale(1.1, 1.1) translate3d(0, 0, 0);
    transform: scale(1.1, 1.1) translate3d(0, 0, 0);
    cursor: pointer;
}

.menu-open-button:hover {
    -webkit-transform: scale(1.3, 1.3) translate3d(0, 0, 0);
    transform: scale(1.3, 1.3) translate3d(0, 0, 0);
}

.menu-open:checked + .menu-open-button {
    -webkit-transition-timing-function: linear;
    transition-timing-function: linear;
    -webkit-transition-duration: 200ms;
    transition-duration: 200ms;
    -webkit-transform: scale(0.8, 0.8) translate3d(0, 0, 0);
    transform: scale(0.8, 0.8) translate3d(0, 0, 0);
}

.menu-open:checked ~ .menu-item {
    -webkit-transition-timing-function: cubic-bezier(0.165, 0.84, 0.44, 1);
    transition-timing-function: cubic-bezier(0.165, 0.84, 0.44, 1);
}

.menu-open:checked ~ .menu-item:nth-child(3) {
    -webkit-transition-duration: 190ms;
    transition-duration: 190ms;
    -webkit-transform: translate3d(0, 55px, 0);
    transform: translate3d(0, 55px, 0);
}

.menu-open:checked ~ .menu-item:nth-child(4) {
    -webkit-transition-duration: 290ms;
    transition-duration: 290ms;
    -webkit-transform: translate3d(0, 110px, 0);
    transform: translate3d(0, 110px, 0);
}

.menu-open:checked ~ .menu-item:nth-child(5) {
    -webkit-transition-duration: 390ms;
    transition-duration: 390ms;
    -webkit-transform: translate3d(0, 165px, 0);
    transform: translate3d(0, 165px, 0);
}

.menu-open:checked ~ .menu-item:nth-child(6) {
    -webkit-transition-duration: 490ms;
    transition-duration: 490ms;
    -webkit-transform: translate3d(0, 220px, 0);
    transform: translate3d(0, 220px, 0);
}

.menu-open:checked ~ .menu-item:nth-child(7) {
    -webkit-transition-duration: 590ms;
    transition-duration: 590ms;
    -webkit-transform: translate3d(0, 275px, 0);
    transform: translate3d(0, 275px, 0);
}

.menu-open:checked ~ .menu-item:nth-child(8) {
    -webkit-transition-duration: 690ms;
    transition-duration: 690ms;
    -webkit-transform: translate3d(0, 330px, 0);
    transform: translate3d(0, 330px, 0);
}

.menu-open:checked ~ .menu-item:nth-child(9) {
    -webkit-transition-duration: 790ms;
    transition-duration: 790ms;
    -webkit-transform: translate3d(0, 385px, 0);
    transform: translate3d(0, 385px, 0);
}

.menu-open:checked ~ .menu-item:nth-child(10) {
    -webkit-transition-duration: 890ms;
    transition-duration: 890ms;
    -webkit-transform: translate3d(0, 440px, 0);
    transform: translate3d(0, 440px, 0);
}

.menu-open:checked ~ .menu-item:nth-child(11) {
    -webkit-transition-duration: 890ms;
    transition-duration: 890ms;
    -webkit-transform: translate3d(0, 495px, 0);
    transform: translate3d(0, 495px, 0);
}

.menu-open:checked ~ .menu-item:nth-child(12) {
    -webkit-transition-duration: 890ms;
    transition-duration: 890ms;
    -webkit-transform: translate3d(0, 550px, 0);
    transform: translate3d(0, 550px, 0);
}
.menu-open:checked ~ .menu-item:nth-child(13) {
    -webkit-transition-duration: 890ms;
    transition-duration: 890ms;
    -webkit-transform: translate3d(0, 605px, 0);
    transform: translate3d(0, 605px, 0);
}

.menu-open:checked ~ .menu-item {
    box-shadow: 1px 1px 10px #000;
}

.menu-item span {
    text-shadow: 0px 0px 3px #000,
    -1px -1px 3px #000,
    1px -1px 3px #000,
    -1px 1px 3px #000,
    1px 1px 3px #000;
}

.menu-open-button:hover {
    -webkit-transform: scale(1.1, 1.1) translate3d(0, 0, 0);
    transform: scale(1.1, 1.1) translate3d(0, 0, 0);
}