:root { /*Can not use CSS vars on media queries so remember updating all repeated sizes on this file*/
    --def-bg-color: rgb(0, 221, 255);
}

body,
main {
    background-color: var(--def-bg-color);
}
#title_container {
    position: fixed;
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    pointer-events: none;
    z-index: 1; /*Is in must to add z-index on #title_container and ul because else brightness effect doesn´t work propperly*/
    font-size: 2.8vw;
}
h1 {
    color: white;
    opacity: 0.85;
    font-family: Verdana, Geneva, Tahoma, sans-serif;
    font-size: 1em; /*60px*/
    font-weight: 600;
    letter-spacing: 1.7vw;
    text-align: center;
}
ul {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
}
li {
    height: 100vh;
    min-width: 25vw;
}
a {
    display: inline-block; /*Is in must to set width and height property to an "a" element*/
    width: 100%;
    height: 100%;
    text-decoration: none;
    filter: brightness(0.8);
    font-size: 3vw;
    transition: filter 500ms;
}
a:hover {
    filter: brightness(1);
}
h2 {
    background-color: var(--def-bg-color);
    color: white;
    text-align: center;
    font-size: 1em;
}
.column_view-image {
    width: 100%;
}
.row_view-image {
    position: absolute;
    top: 0;
}
.column_view-image,
.row_view-image {
    filter: blur(3px);
    transition: filter 700ms;
}

a:hover .column_view-image,
a:hover .row_view-image,
.column_view-image:hover {
    filter: blur(0);
}