/* Thanks to https://dev.to/alvaromontoro/create-a-tag-cloud-with-html-and-css-1e90 ! */

ul.cloud {
    list-style: none;
    padding-left: 0;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    line-height: 2.75rem;
}

ul.cloud a {
    /*   
    Not supported by any browser at the moment :(
    --size: attr(data-weight number); 
    */
    --size: 4;
    --color: #000000;
    color: var(--color);
    font-size: calc(var(--size) * 0.25rem + 0.5rem);
    display: block;
    padding: 0.125rem 0.25rem;
    position: relative;
    text-decoration: none;
    opacity: calc((15 - (9 - var(--size))) / 15);
}

ul.cloud a[data-weight="1"] {
    --size: 0.5;
}

ul.cloud a[data-weight="2"] {
    --size: 1;
}

ul.cloud a[data-weight="3"] {
    --size: 1.5;
}

ul.cloud a[data-weight="4"] {
    --size: 2;
}

ul.cloud a[data-weight="5"] {
    --size: 2.5;
}

ul.cloud a[data-weight="6"] {
    --size: 3;
}

ul.cloud a[data-weight="7"] {
    --size: 3.5;
}

ul.cloud a[data-weight="8"] {
    --size: 4;
}

ul.cloud a[data-weight="9"] {
    --size: 4.5;
}

ul[data-show-value] a::after {
    content: " (" attr(data-weight) ")";
    font-size: 1rem;
}


/* ul.cloud li:nth-child(2n+1) a {
    --color: #181;
}

ul.cloud li:nth-child(3n+1) a {
    --color: #33a;
}

ul.cloud li:nth-child(4n+1) a {
    --color: #c38;
} */

ul.cloud a:focus {
    outline: 1px dashed;
}

ul.cloud a::before {
    content: "";
    position: absolute;
    top: 0;
    left: 50%;
    width: 0;
    height: 100%;
    background: var(--color);
    transform: translate(-50%, 0);
    opacity: 0.15;
    transition: width 0.25s;
}

ul.cloud a:focus::before,
ul.cloud a:hover::before {
    width: 100%;
}

@media (prefers-reduced-motion) {
    ul.cloud * {
        transition: none !important;
    }
}