@media (prefers-color-scheme: light) {
    :root {
        --main-background: rgb(255,255,255);
        --card-background: rgb(240, 240, 240);
        --card-text-color: rgb(0, 0, 0);
        --link-text-color: #2679db;
        --visited-link-text-color: color-mod(var(--link-text-color) saturation (0%));
    }
}

@media (prefers-color-scheme: dark) {
    :root {
        --main-background: rgb(0,0,0);
        --card-background: rgb(40, 40, 40);
        --card-text-color: rgb(225, 225, 225);
        --link-text-color: #8fc3ff;
        --visited-link-text-color: color-mod(var(--link-text-color) saturation (0%));
    }
}

html, body {
    height: 100%;
}

body {
    margin: 0;
    background-color: var(--main-background);
}

.flex {
    height: 100%;
    margin: 0;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.card {
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: center;
    border-radius: .4em;
    padding: 1.5em 3em;
    background-color: var(--card-background);
    color: var(--card-text-color);
}

.card > div {
    margin: .5em;
}

.logo img {
    max-height: 12em;
}

.divider {
    width: .1em;
    border-radius: .1em;
    background-color: var(--main-background);
}

.contacts ul{
    font-family: sans-serif;
    line-height: 1.7em;
    font-size: 1.2em;
    list-style: none;
    padding: 0;
}

@media screen and (max-device-width: 480px) {
    .card {
        flex-direction: column;
    }
    .divider {
        display: none;
    }
}

a {
    color: var(--link-text-color);
}

a:visited {
    color: var(--visited-link-text-color);
}