body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
    color: #222;
    background-color: #fff;
    font-size: 17px;
}

a {
    color: #65638f;
}

@media (prefers-color-scheme: dark) {
    body {
        font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
        color: #fff;
        background-color: #000;
    }
    a {
        color: #7331ed;
    }
}