phga.de-legacy/inc/css/main.css

@font-face {
    src: url("/inc/fonts/HKGrotesk-Regular.woff");
    font-family: hkg;
}

:root {
    --c1: #fefefe;
    --c2: #0e0e0e;
    --c3: #d2b2ec;
    --c4: #eeaeca;
    --c5: #e9bd94;

    --h-header: 8vh; /* + 2 * 2.5vh margin (12.5)*/
    --h-info: 67.5vh; /* 100 - 32.5 */
    --h-ex: 15vh; /* + 2 * 2.5vh bottom (20.0)*/

    --h-ex-thumb: 15.0vh;
}

* {
    font-family: hkg, sans-serif;
    color: var(--c2);
    padding: 0;
    margin: 0;
    text-decoration: none;
}

html, body {
    position: relative;
    height: 100%;
    max-width: 100%;
    max-height: 100%;
    overflow: hidden;
}

body {
    background: radial-gradient(ellipse, var(--c3) 0%, var(--c4) 63%, var(--c5) 100%);
}

header, #bg-box, #exhibition, .flying-text {
    border-radius: 5px;
}

.hidden {
    visibility: hidden;
}

/******************* HEADER *******************/

header {
    box-sizing: border-box;
    position: relative;
    font-size: 1.5vmax;
    background-color: var(--c1);
    width: 60%;
    height: var(--h-header);
    max-height: var(--h-header);
    margin: 2.5vh auto;
    text-align: center;
    z-index: 1;
}

nav a {
    display: inline-block;
    min-width: 16%;
    vertical-align: middle;
}

a:hover {
    color: var(--c3);
}

nav {
    position: absolute;
    height: 100%;
    width: 100%;
    margin-top: -1.5vh;
}

#logo {
    position: relative;
    height: auto%;
}

#logo img {
    filter: grayscale(1);
    width: calc(var(--h-header) + 3vh);
}

#logo img:hover {
    filter: grayscale(0);
}

@media only screen and (max-width: 800px) {
   header {
        width: 95%;
    }
}

/******************* EXHIBITION *******************/

/* Remove scrollbar in webkit */
::-webkit-scrollbar{width:0px; height:0px;}
::-webkit-scrollbar-button{width:0px; height:0px;}

#exhibition {
/* Remove scrollbar in FF */
    scrollbar-width: none;

    transform-origin: bottom left;

    overflow-y: auto;
    overflow-x: hidden;

    position: absolute;
    background-color: var(--c1);
    /* because of the transform width and height are switched */
    bottom: 2.5vh;
    left: 97.5vw;
    width: var(--h-ex);
    height: 95vw;
    transform: rotate(-90deg);
}

.thumb-box {
    transform-origin: bottom left;
    /* keep the ~ratio of a photo
       (spacing should be the same all the time) */
    width: calc(var(--h-ex-thumb) * 1.49);
    height: var(--h-ex-thumb);
    margin-top: calc(var(--h-ex-thumb) * 0.53);
    /* shift the thumbs 1.49*width to the left */
    transform: rotate(90deg) translateX(calc(var(--h-ex-thumb) * -1.49));
}

.thumb-box:last-child {
    margin-bottom: 0;
}

.thumb {
    filter: grayscale(1);
    width: 100%;
    height: 100%;
}

.thumb:hover {
    filter: grayscale(0);
    cursor: pointer;
}

/******************* SCROLL INDICATOR *******************/

#overlay-arrow {
    position: absolute;
    width: 95vw;
    height: 5vh;
    left: 2.5vw;
    bottom: calc((var(--h-ex) - 5vh) / 2 + 2.5vh);
    visibility: hidden;
}

.arrow {
    position: absolute;
    line-height: 5vh;
    font-size: 12vh;
    top: -0.5vh;
    color: var(--c1);
    background-color: var(--c3);
    opacity: 0.7;
    width: 6vh;
    height: 6vh;
    border-radius: 50%;
    text-align: center;
    visibility: hidden;
    animation: notice 3s;
    animation-delay: 2s;
}

.arrow:first-child {
    left: 1vw;
}

.arrow:last-child {
    right: 1vw;
}

@keyframes notice {
    0% {
        visibility: visible;
        opacity: 0;
    }
    50% {
        visibility: visible;
        opacity: 0.9;
    }
    100% {
        visibility: visible;
        opacity: 0;
    }
}

/******************* INFO *******************/

#info-box {
    position: relative;
    width: 95%;
    height: var(--h-info);
    margin: auto;
}

#bg-box {
    background-color: var(--c1);
    width: 100%;
    height: 100%;
    overflow: hidden;
}

#info-box table {
    display: inline-block;
    position: absolute;
    top: 0;
    bottom: 0;
    height: auto;
    padding: 5vh;
    margin-bottom: 2.5vh;
}

#info-box table * {
    font-size: 1.35vw;
}

#info-box th {
    text-align: left;
}

#info-box img {
    height: 100%;
    max-width: 100%;
}

#btn-close {
    position: absolute;
    font-size: 4.5vw;
    color: var(--c2);
    top: 1.6vw;
    right: 1.6vw;
    /* I made this a bit smaller to make alignment easier */
    line-height: 2.0vw;
    z-index: 1;
}

#btn-close:hover {
    color: var(--c3);
    cursor: pointer;
}

/******************* ZOOM *******************/

#zoom {
    background-size: contain;
    background-clip: content-box;
    display: inline-block;
    background-repeat: no-repeat;
    background-position: center;
    max-width: 60%;
    height: 100%;
}

@media only screen and (max-width: 800px) {

    #bg-box {
        background-color: var(--c1);
        width: 100%;
        height: 100%;
        overflow: hidden;
    }

    #info-box table {
        box-sizing: border-box;
        display: block;
        position: relative;
        padding: 0 2.5%;
        margin-top: 7.5vh;
    }

    #info-box table * {
        font-size: 2.0vw;
    }

    #info-box img {
        max-height: 100%;
    }

    #zoom {
        position: relative;
        top: 5vh;
        left: 2.5%;
        max-width: 95%;
        height: 50%;
    }
}

/******************* HEADER *******************/

#welcome {
    position: absolute;
    top: 12.5vh;
    width: 100%;
    height: var(--h-info);
}

#welcome img {
    position: relative;
    top: 17vh;
    left: 50vw;
    height: calc(var(--h-info) * 0.5);
    margin-left: calc(var(--h-info) * 0.25 * -0.70);
}

.flying-text {
    display: inline-block;
    position: absolute;
    font-size: 0.01vw;
    color: var(--c2);
    background-color: var(--c1);
    top: 50%;
    left: 50%;
    padding: 0.5vw;
    text-align: center;
    z-index: -1;
}

/******************* COMING SOON *******************/

.coming-soon {
    text-align: center;
}
.coming-soon p{
    position: relative;
    display: inline-block;
    font-size: 8vmin;
    color: var(--c2);
    top: 30vh;
    background-color: var(--c1);
    border-radius: 1vh;
    padding: 20px;
}