/*******************************************************************************
CSS VARIABLES
*******************************************************************************/

:root {
    --highlight-weak: rgba(128, 128, 128, 0.2);
    --highlight-strong: rgba(128, 128, 128, 0.4);
    --radius-sm: 0.2rem;
}


/*******************************************************************************
BASE STYLES
*******************************************************************************/

html {
    font-size: 10pt;
}

img,
svg {
    max-height: 80vh;
}


/*******************************************************************************
RESPONSIVE LAYOUT
*******************************************************************************/

@media (max-width: 760px) {

    /* Display margin notes inline on narrow screens */
    .marginnote {
        display: block;
        float: none;
        position: static;
        padding-left: 1.2rem;
        width: 100%;
        margin-top: 1em;
        margin-bottom: 1em;
    }

    /* Limit image width in margin notes */
    .marginnote img,
    .marginnote svg {
        max-width: calc(760px / 3);
        margin: 0 auto;
        display: block;
    }

    /* Enable hyphenation on narrow screens */
    p {
        hyphens: auto !important;
    }
}


/*******************************************************************************
NAVBAR
*******************************************************************************/

header nav {
    display: flex;
    gap: 1em;
}

header nav a,
header nav a:link,
header nav a:visited {
    color: inherit;
    text-decoration: none !important;
    background-image: none !important;
    border-bottom: 0 !important;
    box-shadow: none !important;
    text-shadow: none;
    font-size: 1.5rem;
    padding: 0.2em 0.4em;
    margin-top: 1em;
    border-radius: var(--radius-sm);
    transition: background-color 120ms ease;
}

header nav a:hover,
header nav a:focus-visible {
    background: var(--highlight-weak);
    outline: none;
}


/*******************************************************************************
FOOTNOTES AND MARGIN NOTES
*******************************************************************************/

.footnote-ref,
.footnote-ref+.marginnote {
    --highlight: transparent;
    background-color: var(--highlight);
    box-shadow: 0 0 0 5px var(--highlight);
    border-radius: var(--radius-sm);
    transition: background-color 0.3s ease 1s, box-shadow 0.3s ease 1s;
}

/* Highlight margin note when footnote reference is hovered */
.footnote-ref:hover+.marginnote {
    --highlight: var(--highlight-weak);
    transition-delay: 0s;
}

/* Highlight footnote reference when margin note is hovered */
.footnote-ref:has(+ .marginnote:hover) {
    --highlight: var(--highlight-strong);
    transition-delay: 0s;
}

a.footnote-ref-link {
    background-image: none;
    text-shadow: none !important;
}


/*******************************************************************************
MATH NOTATION
*******************************************************************************/

/* TODO: Remove hack for math zooming */
figure[role="math"] {
    zoom: 1.4;
}

@media (prefers-color-scheme: dark) {

    /* Invert math figures for better contrast */
    [role="math"] {
        filter: invert(1) hue-rotate(180deg);
    }
}


/*******************************************************************************
POST TILES
*******************************************************************************/

.post-tile {
    margin: 0 0 1rem;
}

.post-tile a {
    display: inline-block;
    padding: 0.1em 0.2em;
    background-image: none !important;
}

.post-tile a:hover,
.post-tile a:focus-visible {
    background: var(--highlight-weak);
    outline: none;
}

.post-tile h3 {
    margin: 0;
}

.post-tile p {
    margin: 0.25rem 0 0;
}