* {
    box-sizing: border-box;
    touch-action: manipulation;
}

:root {
    background-color: #444E8D;
}

html::before {
    z-index: -1;
    position: fixed;
    height: 100vh;
    width: 100vw;
    content: "";
    background-repeat: no-repeat;
    background-position: center;
    background-size: cover;
    background-image: url('../../images/logo/Gradient.png');
    background-color: #444E8D;
}

body {
    margin: unset;
    font-family: "SF Pro Text", -apple-system, sans-serif;
    scroll-snap-type: y mandatory;
    /*background-color: #444E8D;*/
}

.headerLogo {
    --size: 70px;
    --margin: 20px;
    --filter: brightness(1.2) /*saturate(150%)*/ blur(50px);
    -webkit-backdrop-filter: var(--filter);
    backdrop-filter: var(--filter);
    background-color: rgba(200, 200, 200, 0.2);
    z-index: 2019;
    position: fixed;
    left: var(--margin);
    top: var(--margin);
}

.headerLogo:after {
    content: ' ';
    background-image: url('https://ponomarev.studio/images/logo/Gradient.128px.png');
    position: absolute;
    opacity: 0;
    transition: opacity .5s;
}

.headerLogo,
.headerLogo:after {
    -webkit-mask-image: urL('https://ponomarev.studio/images/logo/Mono.svg');
    -webkit-mask-size: contain;
    -webkit-mask-position: left center;
    -webkit-mask-repeat: no-repeat;
    background-size: 100%;
    background-position: center;
    background-repeat: no-repeat;
    width: var(--size);
    height: calc(var(--size) / 2);
}

.headerLogo:hover:after,
.headerLogo:focus:after {
    opacity: 1;
}

.headerLogo:active {
    transform: scale(.9);
}

.headerMenu {
    transition: box-shadow .4s ease-out;
    position: fixed;
    bottom: 0;
    width: calc(100% - 40px);
    margin: 40px 20px;
    padding: unset;
    border-radius: 20px;
    z-index: 1000;
    box-shadow: 0 5px 20px 5px rgba(95, 92, 92, .2);
}

.headerMenu:before {
    transition: background .4s ease-out;
    content: '';
    position: absolute;
    z-index: -1;
    display: block;
    width: 100%;
    height: 100%;
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: brightness(1.2) saturate(150%) blur(20px);
    -webkit-backdrop-filter: brightness(1.2) saturate(150%) blur(20px);
}

#toggleMenu:checked ~ .headerMenu:before {
    transition: background .3s ease-out;
    background: rgba(255, 255, 255, 0.4);
}

#toggleMenu {
    display: none;
}

.menuBar {
    display: flex;
    justify-content: space-between;
    height: 50px;
    overflow: hidden;
}

.menuContent {
    transition: all .3s ease-out;
    display: flex;
    overflow: hidden;
    width: 100%;
    max-height: 0;
    padding: 0 20px;
    flex-direction: column;
    border-bottom: solid 1px transparent;
}

.menuContent > a {
    color: inherit;
    text-decoration: none;
    line-height: 2.5em;
}

.menuContent > a:first-child {
    margin-top: 20px;
}

.menuContent > a:last-child {
    margin-bottom: 20px;
}

#toggleMenu:checked ~ .headerMenu {
    transition: box-shadow .3s ease-out;
    box-shadow: 0 5px 40px 10px rgba(0, 0, 0, 0.3);
}

#toggleMenu:checked ~ .headerMenu > .menuContent {
    transition: all .5s ease-out;
    max-height: 500px;
    border-bottom: solid 1px rgba(50, 50, 50, 0.1);
}

.menuItem {
    transition: transform .2s .2s ease-out, opacity .1s .3s ease-out;
    height: 50px;
    /*margin: 0 5px;*/
    line-height: 50px;
    text-align: center;
    color: inherit;
    text-decoration: none;
}

#toggleMenu:checked ~ .headerMenu .menuItem {
    transition: transform .2s ease-out, opacity .1s ease-out;
    opacity: 0;
    transform: translate(0, -50px);
    pointer-events: none;
}

.openMenu {
    display: flex;
    color: rgba(0, 0, 0, .8);
    height: 100%;
    width: 60px;
    /*line-height: 50px;*/
    text-align: center;
    font-size: 0;
    text-decoration: none;
    flex-direction: column;
    justify-content: space-around;
    padding: 18px 20px;
    margin-right: -20px;
}

.openMenu:before,
.openMenu:after {
    transition: transform .4s ease-out;
    content: '';
    display: block;
    width: 100%;
    height: 1.5px;
    border-radius: 1px;
    background-color: rgba(0, 0, 0, .8);
}

#toggleMenu:checked ~ .headerMenu .openMenu {
    pointer-events: none;
}

#toggleMenu:checked ~ .headerMenu .openMenu:before,
#toggleMenu:checked ~ .headerMenu .openMenu:after {
    transition: transform .3s ease-out;
}

#toggleMenu:checked ~ .headerMenu .openMenu:before {
    /*transition: transform .3s;*/
    transform: translate(0, 4.25px) rotate(45deg);
}

#toggleMenu:checked ~ .headerMenu .openMenu:after {
    /*transition: transform .3s;*/
    transform: translate(0, -4.25px) rotate(-45deg);
}

.closeMenu {
    display: none;
    position: absolute;
    left: 0;
    bottom: 0;
    width: 60px;
    height: 50px;
    font-size: 0;
}

.openMenu, .closeMenu {
    cursor: pointer;
    user-select: none;
    -webkit-user-select: none;
}

#toggleMenu:checked ~ .headerMenu .closeMenu {
    display: block;
}

.sendMessage {
    display: block;
    height: 100%;
    width: 60px;
    font-size: 0;
    background-image: url("../../images/comment.svg");
    background-repeat: no-repeat;
    background-size: 20px;
    background-position: center;
    opacity: .8;
    margin-left: -20px;
}

main {
    position: relative;
    height: calc(10 * 100vh);
}

main > div {
    position: absolute;
    width: 100%;
    height: calc((10 - var(--slide-number)) * 100vh);
    z-index: var(--slide-number);
    top: calc(var(--slide-number) * 100vh);
    scroll-snap-align: start;
}

main > div:not(:first-child),
main > div:not(:first-child) > section,
main > div:not(:first-child) > section:before {
}

main > div:last-child,
main > div:last-child > section,
main > div:last-child > section:before {
}

main > div:last-child > section {
    height: calc(100vh + 25px + 15px);
}

main > div:last-child {
    height: 100vh;
}

main > div > section {
    position: -webkit-sticky;
    position: sticky;
    top: 0;
    height: 100vh;
}

.cover {
    /*background-repeat: no-repeat;*/
    /*background-position: center;*/
    /*background-size: cover;*/
    /*background-image: url('../../images/logo/Gradient.png');*/
    /*background-color: #444E8D;*/
    color: white;
    display: flex;
    flex-direction: column;
    padding: 20px;
    padding-top: 80px;
}

.cover > h1 {
    font-size: 40px;
    margin: unset;
}

.cover > ul {
    list-style: none;
    /*margin-left: -10px;*/
    padding-left: 0;
}

.cover > ul > li {
    font-size: 20px;
    font-weight: 500;
    /*padding-left: 1em;*/
    /*text-indent: -1em;*/
    line-height: 40px;
}

.cover > ul > li:before {
    content: attr(data-icon);
    font-size: 20px;
    line-height: 30px;
    padding-right: 10px;
}

@media (orientation: landscape) {
    .cover > ul {
        columns: 2;
        -webkit-columns: 2;
        -moz-columns: 2;
    }
}

.portfolioItem {
    color: var(--accent-color, black);
    background-color: var(--ambient-color, white);

    display: flex;
    flex-direction: column;
    padding: 20px;
    padding-top: 80px;
    transform: translate(0, -25px);
    height: calc(100vh + 25px);
    border-radius: 15px;
}

.portfolioItem:before {
    content: '';
    position: absolute;
    height: 100%;
    width: 100%;
    left: 0;
    right: 0;
    top: 0;
    border-radius: 15px;
    box-shadow: 0 -0px 10px 5px var(--shadow-color, var(--ambient-color, rgb(95, 92, 92)));
    z-index: -1;
    opacity: .2;
}

.portfolioItem:after {
    --width: calc(20px * 2);
    --height: 5px;
    content: '';
    position: absolute;
    z-index: 1;
    width: var(--width);
    height: var(--height);
    left: calc((100% - var(--width)) / 2);
    top: 10px;
    background: var(--accent-color, black);
    opacity: .5;
    border-radius: calc(var(--height) / 2);
}

.portfolioItem > span {
    font-weight: 500;
}

.img-slider {
    margin: 0 -20px;
    margin-top: 20px;
}

.img-slider,
.img-slider > div {
    box-sizing: border-box;
    width: 100vw;
}

.img-slider > div {
    display: flex;
    justify-content: space-between;
    overflow: scroll;
    overflow-x: hidden;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
}

.img-slider img {
    height: 40vh;
    min-width: 100vw;
    scroll-snap-align: center;
    object-fit: contain;
    object-position: top;
}

footer {
    height: 100vh;
    background-color: black;
    scroll-snap-align: start;
}