/* Every figure: a box that sets the figure and its caption apart from
 * body text. The caption is left-aligned and slightly smaller than body
 * text. Only its "Figure 5.1.2-1:" label (added at build time by
 * scripts/figure_number.py) is bold, since most captions run
 * several sentences.
 *
 * Colors come from mdbook's own theme variables, so the box follows the
 * theme selector. The light theme's --table-header-bg is hsl(0, 0%, 80%),
 * the original #ccc gray. The border mixes 15% black into that color.
 */
main figure {
    background-color: var(--table-header-bg);
    border: 1px solid color-mix(in srgb, var(--table-header-bg), black 15%);
    padding: 15px;
    margin: 15px auto;
    max-width: 90%;
}

main figure img {
    max-width: 100%;
    height: auto;
    display: block;
    margin: 0 auto 10px;
}

main figcaption {
    font-style: normal;
    font-size: 0.9em;
    color: var(--fg);
    text-align: left;
    margin-top: 5px;
}

main figcaption strong {
    font-weight: bold;
}

/* Rust's --table-header-bg, #b3a497, reads as a dark tan behind
 * figures. Rust figures use the theme's blockquote gray instead,
 * --quote-bg, hsl(60, 5%, 75%), so they match the page's note boxes.
 */
.rust main figure {
    background-color: var(--quote-bg);
    border-color: color-mix(in srgb, var(--quote-bg), black 15%);
}