:root {
    --primary-color: #bb2828;
    --text-color-light: #eee;
    --text-color-dark: #333;
    --background-color-light: #faf2e4;
    --background-color-dark: #111;
    --secondary-text-color-light: #555;
    --secondary-text-color-dark: #aaa;
    --font-family: 'Varela Round', sans-serif;
}

@media (prefers-color-scheme: dark) {
    body {
        background-color: var(--background-color-dark);
        color: var(--text-color-light);
    }
    .black {
        color: var(--text-color-dark);
        fill: var(--text-color-dark);
    }
    .comment {
        color: var(--secondary-text-color-dark);
    }
}

@media (prefers-color-scheme: light) {
    body {
        background-color: var(--background-color-light);
        color: var(--text-color-dark);
    }
    .black {
        color: var(--text-color-dark);
        fill: var(--text-color-dark);
    }
    .comment {
        color: var(--secondary-text-color-light);
    }
}

a {
    color: var(--primary-color);
    text-decoration: none;
}

body {
    font-family: var(--font-family);
    letter-spacing: 0.05em;
    margin: 0 auto;
    padding: 0 10%;
    transition: background-color 0.3s, color 0.3s;
}

div {
    padding-bottom: 1em;
}

h1, h2, h3 {
    letter-spacing: 0.05em;
}

h1 {
    margin-bottom: 0.1em;
}

h2 {
    margin: 1em 0 0.5em 0;
}

nav > ul {
    list-style-type: none;
    margin: 0.75em 0.25em 0 0;
    padding-bottom: 1em;
    overflow: hidden;
}

nav > ul > li {
    padding-right: 1em;
    float: left;
    font-size: 1em;
    font-weight: bold;
}

.pre {
    white-space: pre-wrap;
}

.red {
    color: var(--primary-color);
    fill: var(--primary-color);
}

ul {
    list-style-type: none;
    padding-left: 0;
}

@media screen and (max-width: 800px) {
    body {
        padding: 0 5%;
    }
}