:root {
    --color-main: #fbfbfb;
    --color-background: #262626;
    --color-text: #fbfbfb;
}

@media(prefers-color-scheme: dark) {
    :root {
        --color-main: #fbfbfb;
        --color-background: #262626;
        --color-text: #fbfbfb;
    }
}

h3:nth-of-type(3n){
    color: #ae35aa;
}

h3:nth-of-type(3n+1) {
    color: #5cc5b0;
}

h3:nth-of-type(3n+2) {
    color: #f4615a;
}