style81.css

/* Layout for search container */
.search {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
}

.js .search {
    position: fixed;
    z-index: 1000;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
}

.js .search::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 100%;
    height: 100%;
    background: rgba(20,20,20,0.4);
}

.btn--search-close {
    font-size: 2em;
    position: absolute;
    top: 1.5em;
    right: 1.25em;
    display: none;
    color: #fff;
}

.js .btn--search-close {
    display: block;
}

.search__form {
    position: relative;
    margin: 5em 0 2em;
}

.search__form-inner {
    position: relative;
    z-index: 10;
    overflow: hidden;
}

.js .search__form-inner::after {
    content: '';
    display: inline-block;
    box-sizing: border-box;
    position: absolute;
    text-align: center;
    top: 0;
    left: 20%;
    width: 60%;
    height: 105%;
    background:  #fff;
}

.search__input {
    font-family: inherit;
    font-size: 6vw;
    line-height: 1;
    display: inline-block;
    box-sizing: border-box;
    width: 60%;
    padding: 0.25em;
    text-align: center;
    color: #fff;
    background: rgba(20,20,20,0.7);
}

.search__input::-webkit-input-placeholder {
    color: #000;
}

.search__input::-moz-placeholder {
    opacity: 1;
    color: #000;
}

.search__input:-ms-input-placeholder {
    color: #000;
}

.search__input::-webkit-search-cancel-button,
.search__input::-webkit-search-decoration {
    -webkit-appearance: none;
}

.search__input::-ms-clear {
    display: none;
}

.search__info {
	font-size: 90%;
	font-weight: bold;
	position: relative;
	z-index: 9;
	display: block;
	width: 100%;
	padding: 0.85em 0;
	color: #eaba82;
}

/* Transitions */

.js .main-wrap {
    transition: transform 0.4s, opacity 0.4s;
    transition-timing-function: cubic-bezier(0.4,0,0.2,1);
}

.js .main-wrap {
    opacity: 0;
    transform: scale3d(0.9,0.9,1);
}

.js .main-wrap--move .btn--search {
    pointer-events: none;
    opacity: 0;
}

.js .search {
    pointer-events: none;
}

.js .search--open {
    pointer-events: auto;
}

.js .search::before {
    opacity: 0;
    transition: 0.4s;
}

.js .search--open::before {
    opacity: 1;
}

.btn--search-close {
    opacity: 0;
    transition: opacity 0.4s;
}

.search--open .btn--search-close {
    opacity: 1;
}

.search__info {
    opacity: 0;
    transform: translate3d(0,-50px,0);
    transition: opacity 0.4s, transform 0.4s;
}

.search--open .search__info {
    opacity: 0;
    transform: translate3d(0,0,0);
    transition-delay: 0.4s;
    transition-timing-function: ease-out;
}

.js .search__form-inner::after {
    opacity: 0;
    transform-origin: 50% 0;
}

.js .search--open .search__form-inner::after {
    animation: scaleUpDown 0.8s cubic-bezier(0.4,0,0.2,1) forwards;
}

@keyframes scaleUpDown {
    0% {
        opacity: 1;
        transform: scale3d(1,0,1);
    }
    50% {
        transform: scale3d(1,1,1);
        transform-origin: 50% 0;
        transition-timing-function: ease-out;
    }
    50.1% {
        transform-origin: 50% 100%;
        transition-timing-function: ease-out;
    }
    100% {
        opacity: 1;
        transform: scale3d(1,0,1);
        transform-origin: 50% 100%;
        transition-timing-function: ease-out;
    }
}

.js .search__form-inner {
    transform: translate3d(0,-50px,0);
    transition: transform 0.4s;
}

.js .search--open .search__form-inner {
    transform: translate3d(0,0,0);
    transition: none;
}

.js .search__input {
    opacity: 0;
    transition: opacity 0.4s
}

.js .search--open .search__input {
    opacity: 1;
    transition: opacity 0s 0.4s;
}

@media screen and (max-width: 40em) {
    .btn--search-close {
        font-size: 1em;
    }
    .search__form {
        margin: 2em 0;
    }
    .search__related {
        font-size: 85%;
        width: 100%;
        padding: 0 1em;
    }
    .search__input,
    .js .search__form-inner::after {
        width: 100%;
        left: 0;
    }
}