* {
    font-family: Arial, Helvetica, sans-serif;
}

html {
    height: 100%;
}

body {
    margin: 0;
    padding: 0;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: #f0f0f0;
}

main {
    padding: 1rem 2rem;
    border: 1px solid #ddd;
    border-radius: 4px;
    background-color: #fff;
}

a {
    color: #000;
    transition: 0.5s all;
}

a:hover {
    color: #333;
}

@media (prefers-color-scheme: dark) {
    body {
        background-color: #222;
    }

    main {
        border-color: #333;
        background-color: #333;
        color: #fff;
    }

    a {
        color: #0ff;
    }

    a:hover {
        color: #0aa;
    }
}

#links {
    display: flex;
    flex-direction: column;
}

#links a {
    margin-bottom: 0.5rem;
}