html {
    --text-margin: 0 1.5em;
    --content-color: #000;
    --blockquote-background: #eee;
}

@media not print {
    @media (prefers-color-scheme: dark) {
        html {
            --content-color: #ccc;
            --blockquote-background: #444;
        }

        img {
            filter: brightness(.8) contrast(1.2);
        }

        body {
            background-color: #000;
        }

        a {
            color: #56caef;
        }

            a:visited {
                color: #74b335;
            }
    }
}

body {
    display: flex;
    justify-content: center;
    font-family: verdana,arial,helvetica,sans-serif;
    color: var(--content-color);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

em {
    font-style: italic;
}

strong {
    font-weight:bold;
}

.underline {
    text-decoration: underline;
}

aside, blockquote {
    border: thin currentColor solid;
    padding: 0.5em;
    background-color: var(--blockquote-background);
}

h2 {
    font-size: large;
    text-transform: uppercase;
}

h3 {
    font-size: medium;
}

figure {
    margin: 0;
}

caption, figure img + figcaption {
    text-align: center;
    font-family: monospace;
}

a.skip-link {
    position: absolute;
    left: -10000px;
}

a.skip-link:focus {
    position: fixed;
    left:0.25em;
    top:0.25em;
}

#container {
    width: 100%;
    max-width: 780px;
    border: thin currentColor solid;
    padding-bottom: 0.5rem;
}

@media print {
    #container {
        max-width: unset;
    }
}

header .fields {
    display: flex;
    flex-flow: column;
    align-items: center;
}

    header .logo {
        width: 100%;
    }

header p,time,h1 {
    font-weight: bold;
    font-size: larger;
    margin: var(--text-margin);
    text-align: center;
}

header h1 {
    padding: 1em 0 0.5em;
}

hr.after-head {
    margin: var(--text-margin);
    height: 0.2em;
    background-color: var(--content-color);
}

main, footer.footnotes {
    margin: var(--text-margin);
}

main img {
    margin: 0.5em auto;
}

hr.before-footnote {
    margin: var(--text-margin);
    width: 40%;
    background-color: var(--content-color);
}

p.footnote {
    margin: 0.5em 0;
}

p.footnote sup {
    margin-right: 0.25em;
}

:is(sup.footnote, footer.footnotes p.footnote sup) a::before {
    content: '[';
}

:is(sup.footnote, footer.footnotes p.footnote sup) a::after {
    content: ']';
}

.bold {
    font-weight: bold;
}