/* Shared typography and theme tokens for the site. */
html#site-root {
	--site-body: "CMU Serif", Georgia, serif;
	--site-heading: "CMU Sans Serif", sans-serif;
	--site-text: 16px;
	--site-title: 24px;
	--site-accent: oklch(58.6% 0.253 17.585);
	--site-foreground: #000;
	--site-background: #fff;
	--site-surface: #f5f5f5;
	--site-border: #e5e5e5;
	--site-overlay: rgb(255 255 255 / 86%);
	--site-credit: rgb(255 255 255 / 94%);
	--color-global-bg: var(--site-background);
	--color-global-text: var(--site-foreground);
	--color-link: var(--site-accent);
	--color-accent: var(--site-accent);
	--color-accent-2: var(--site-foreground);
	--color-quote: var(--site-foreground);
	color-scheme: light;
	background: var(--site-background);
}

/* The root selector also covers scoped page styles and generated content. */
html#site-root body {
	font-family: var(--site-body);
	font-size: var(--site-text);
	font-weight: 400;
	line-height: 1.5;
	color: var(--site-foreground);
	background: var(--site-background);
}

html#site-root
	body
	:where(*):not(:where(.katex, .katex *, mjx-container, mjx-container *, .MathJax, .MathJax *)) {
	font-family: var(--site-body);
	font-size: var(--site-text);
	line-height: 1.5;
	color: var(--site-foreground);
}

html#site-root
	body
	:where(
		h1,
		h2,
		h3,
		h4,
		h5,
		h6,
		.title,
		.category-label,
		h1 *,
		h2 *,
		h3 *,
		h4 *,
		h5 *,
		h6 *,
		.title *,
		.category-label *
	):not(:where(.katex, .katex *, mjx-container, mjx-container *, .MathJax, .MathJax *)) {
	font-family: var(--site-heading);
	font-size: var(--site-title);
	line-height: 1.35;
	font-weight: 600;
}

html#site-root
	body
	:where(
		#main-header,
		#main-header *,
		nav,
		nav *,
		button,
		input,
		select,
		summary,
		summary *,
		.admonition-title,
		.gh-title,
		.gh-title *
	):not(:where(.katex, .katex *, mjx-container, mjx-container *, .MathJax, .MathJax *)) {
	font-family: var(--site-heading);
}

html#site-root body :where(#main-header) > a {
	font-size: var(--site-title);
}

html#site-root
	body
	:where(a, a *, [data-footnote-ref], [data-footnote-backref]):not(
		:where(a:has(img), a:has(img) *)
	) {
	color: var(--site-accent);
}

html#site-root body :where(a, button, summary, input):focus-visible {
	outline: 2px solid var(--site-foreground);
	outline-offset: 4px;
}

html#site-root
	body
	:where(p, li, figcaption, time, .publication-date, .image-credit, footer, footer *) {
	opacity: 1;
}

/* Keep artwork captions inside each image with surfaces that follow the theme. */
html#site-root body .category-label {
	background: var(--site-overlay);
}

html#site-root body .image-credit {
	padding: 0.35rem 0.65rem;
	background: var(--site-credit);
}

html#site-root body .image-credit a {
	color: var(--site-foreground);
}

/* Footnote references retain their existing text and return links. */
html#site-root body :where(sup) {
	position: relative;
	top: -0.3em;
	vertical-align: baseline;
	line-height: 0;
}

html#site-root body :where(.footnotes, [data-footnotes]) {
	margin-top: 2rem;
	padding-top: 1rem;
	border-top: 1px solid var(--site-accent);
}

html#site-root body :where([data-footnote-ref], [data-footnote-backref]) {
	scroll-margin-top: 5rem;
}

/* Technical examples use the same two text faces; mathematical glyphs keep their renderer. */
html#site-root body :where(pre, code, code *, kbd, samp) {
	font-family: var(--site-heading);
}

html#site-root body :where(pre, .expressive-code, .expressive-code *) {
	--ec-codeBg: var(--site-background);
	--ec-codeFontSize: var(--site-text);
	--ec-codeFontFamily: var(--site-heading);
}

html#site-root body pre {
	background: var(--site-background);
	border: 1px solid var(--site-border);
}

html#site-root body :where(blockquote, .admonition) {
	--admonition-color: var(--site-accent);
	border-color: var(--site-accent);
}

html#site-root body #cactus__search {
	--pagefind-ui-text: var(--site-foreground);
	--pagefind-ui-primary: var(--site-accent);
	--pagefind-ui-background: var(--site-background);
	--pagefind-ui-font: var(--site-body);
}

/* Syntax highlighters set inline colors; code follows the active foreground. */
html#site-root body .expressive-code span {
	/* biome-ignore lint/complexity/noImportantStyles: Keep generated inline syntax colors within the active theme palette. */
	color: var(--site-foreground) !important;
}

html#site-root[data-theme="dark"] {
	--site-accent: oklch(71.2% 0.194 13.428);
	--site-foreground: #f5f5f5;
	--site-background: #000;
	--site-surface: #151515;
	--site-border: #303030;
	--site-overlay: rgb(0 0 0 / 86%);
	--site-credit: rgb(0 0 0 / 94%);
	color-scheme: dark;
}

/* Remove decorations from every state, including the original utility classes. */
html#site-root body :where(*, *::before, *::after) {
	text-decoration: none;
}

html#site-root body :where(*::before, *::after) {
	color: inherit;
	font-family: inherit;
	font-size: inherit;
}

html#site-root body :where(h1, h2, h3, h4, h5, h6) a,
html#site-root body :where(h1, h2, h3, h4, h5, h6) a :where(*),
html#site-root body :where(#main-header) > a {
	color: var(--site-foreground);
}

html#site-root
	body
	#cactus__search
	:where(.pagefind-ui__result-link, .pagefind-ui__result-link:hover) {
	background-image: none;
}

html#site-root body :where(pre, .expressive-code, .expressive-code *) {
	--ec-frm-edBg: var(--site-background);
	--ec-frm-edActTabBg: var(--site-background);
	--ec-frm-edTabBarBg: var(--site-surface);
	--ec-frm-trmBg: var(--site-background);
	--ec-frm-trmTtbBg: var(--site-surface);
	--ec-frm-inlBtnFg: var(--site-foreground);
	--ec-frm-inlBtnBg: var(--site-surface);
}

html#site-root body :where(.admonition) {
	background: var(--site-surface);
}

/* Articles follow one continuous reading column, using spacing for hierarchy. */
html#site-root body .reading-copy {
	min-width: 0;
	overflow-wrap: anywhere;
}

html#site-root body .reading-copy :where(p, ul, ol) {
	margin-block: 0 1.25rem;
}

html#site-root body .reading-copy :where(ul, ol) {
	padding-inline-start: 1.4rem;
}

html#site-root body .reading-copy ul {
	list-style: disc;
}

html#site-root body .reading-copy ol {
	list-style: decimal;
}

html#site-root body .reading-copy li {
	margin-block: 0.4rem;
}

html#site-root body .reading-copy h2 {
	margin-block: 2.5rem 1rem;
	font-weight: 500;
}

html#site-root
	body
	.reading-copy
	:where(h3, h4, h5, h6, h3 *, h4 *, h5 *, h6 *):not(
		:where(.katex, .katex *, mjx-container, mjx-container *, .MathJax, .MathJax *)
	) {
	font-size: var(--site-text);
	font-weight: 600;
}

html#site-root body .reading-copy :where(h3, h4, h5, h6) {
	margin-block: 1.75rem 0.75rem;
}

html#site-root body .reading-copy :where(figure, .expressive-code) {
	margin-block: 1.75rem;
}

html#site-root body .reading-copy :where(figure img) {
	display: block;
	max-width: 100%;
	height: auto;
	margin-inline: auto;
}

html#site-root body .reading-copy figcaption {
	margin-top: 0.6rem;
	text-align: center;
}

html#site-root body .reading-copy :where(blockquote) {
	margin-block: 1.5rem;
	padding-inline-start: 1rem;
	border-inline-start: 1px solid var(--site-border);
}

html#site-root body .reading-copy :where(table) {
	display: block;
	max-width: 100%;
	overflow-x: auto;
}

html#site-root body .reading-copy :where(th, td) {
	padding: 0.5rem;
	text-align: left;
}

html#site-root body .reading-copy :where(.footnotes, [data-footnotes]) {
	border-color: var(--site-border);
}

html#site-root body .reading-copy :where([data-footnotes] > h2, .footnotes > h2) {
	margin-top: 0;
}

html#site-root body .reading-copy :where(pre) {
	border-color: var(--site-border);
}

html#site-root body .reading-copy :where(:not(pre) > code) {
	border: 0;
	padding: 0;
}

/* Research sections, project headings, and abstracts have distinct levels. */
html#site-root
	body
	[aria-labelledby="research-title"]
	:where(h3, h3 *):not(
		:where(.katex, .katex *, mjx-container, mjx-container *, .MathJax, .MathJax *)
	) {
	font-size: var(--site-text);
	font-weight: 700;
}

/* Preserve readable paper output even when the saved screen theme is black. */
@media print {
	html#site-root[data-theme] {
		--site-accent: oklch(58.6% 0.253 17.585);
		--site-foreground: #000;
		--site-background: #fff;
		--site-surface: #f5f5f5;
		--site-border: #e5e5e5;
		--site-overlay: rgb(255 255 255 / 86%);
		--site-credit: rgb(255 255 255 / 94%);
		color-scheme: light;
	}
}