html {
	--ui-deg: 45deg;
}

body {
	font: 1em/1.35 Cambria, Times, serif;
	-webkit-hyphens: auto;
	hyphens: auto;
}

[href]:any-link {
	text-underline-offset: 0.2em;
}

/* TOC */

nav {
	position: fixed;
	top: 0;
	left: 0;
	right: 0;
	max-width: 100vw;
	overflow: hidden;
	display: grid;
	grid-template-columns: 1fr auto 1fr;
	grid-template-rows: repeat(2, auto);
	gap: 0 0.5em;
	transition-duration: 500ms;
	color: hsl(var(--ui-deg), 80%, 10%);
	background: hsl(var(--ui-deg), 60%, 99%);
	border-block-end: 1px solid gray;
	z-index: 1945;
	transition-duration: 333ms;
	transition-property: color, background, box-shadow;
}

nav:hover,
nav:focus-within {
	box-shadow: 0 0 3em 3em #FFF;
	color: black;
	background: hsl(var(--ui-deg), 60%, 95%);
}

nav>p {
	grid-row: 1;
	grid-column: 2;
	text-align: center;
	font-weight: 500;
	margin-block-end: -1px;
	padding-block: 0.5em;
	text-indent: 0;
}

nav>a[class] {
	justify-self: stretch;
	padding: 0.5em;
	z-index: 1949;
}

nav>a.prev {
	grid-row: 1;
	grid-column: 1;
	white-space: nowrap;
}

nav>a.prev::before {
	content: "< ";
}

nav>a.next {
	grid-row: 1;
	grid-column: 3;
	text-align: end;
	white-space: nowrap;
}

nav>a.next::after {
	content: " >";
}

nav div {
	grid-row: 3;
	grid-column: 1 / -1;
	height: 0;
	padding: 0;
	justify-self: center;
}

nav p:hover~div,
nav p:focus-within~div,
nav div:hover,
nav div:focus-within {
	padding-block: 1em;
	height: auto;
	opacity: 1;
}

nav ol {
	margin: 1em auto;
	padding-inline: 2.5em 0.5em;
	list-style-type: upper-roman;
}

nav ol li {
	break-inside: avoid;
}

nav p span {
	display: none;
}

@media (min-width: 42rem) {
	nav>p {
		grid-column: 2;
		background:
			linear-gradient(currentColor, currentColor) 50% 100% / 50em 1px no-repeat;
	}

	nav>a[class] {
		grid-row: 1;
	}

	nav>a.next {
		grid-column: 3;
	}

	nav div {
		grid-column: 2;
	}

	nav p span {
		display: inline;
	}

	nav ol {
		columns: 2;
		gap: 4em;
		padding: 0;
		transform: translateX(2em);
	}

	nav div .currentPage [href]:any-link::before {
		margin-right: 0.5ch;
	}
}

nav ul {
	display: flex;
	justify-content: center;
	gap: 1.5em;
	list-style: none;
	margin: 0;
	padding: 0;
}

nav ul li+li {
	list-style: square;
}

nav div [href] {
	display: block;
}

nav [href]:hover {
	background: #0002;
	background: hsla(var(--ui-deg), 60%, 50%, 0.2);
}

nav div [href]:local-link {
	font-weight: 900;
}

nav [href]:any-link {
	color: currentColor;
	text-decoration-style: dotted;
}

nav div [href]:visited {
	color: #555;
}

nav div .currentPage {
	font-weight: 900;
}

nav div .currentPage [href]:any-link {
	color: #000;
	text-decoration-style: solid;
}

main {
	max-width: 40em;
	margin: 0 auto;
	padding-inline: 0.5em;
}

main section {
	margin: 4em 0 2em;
}

main *:is(h1, h2) {
	text-align: center;
}

main *:is(h1, h2, h3) {
	font-weight: normal;
	transform: scaleY(0.9);
	margin-block: 1.5em 0.25em;
}

main h1 {
	margin-block: 2.5em 1em;
	font-size: 2.25em;
}

main ul li {
	list-style: none;
	text-indent: -4ch;
	padding-left: 4ch;
	margin-block-end: 1em;
}

p {
	margin: 0;
	text-align: justify;
}

a.xref {
	white-space: nowrap;
}

sup {
	font-size: 75%;
	line-height: 0.5;
}

@keyframes fnSlide {
	from {
		max-height: 0;
		bottom: -8rem;
	}

	to {
		max-height: 67vh;
		bottom: 0rem;
	}
}

/* ----------------------------------------------
    Figures
     ---------------------------------------------- */

figure {
	margin-block: 2em;
	margin-inline: 0;
	text-align: center;
	font-size: 95%;
}

figure img,
figure svg {
	max-width: 100%;
	margin: 0 auto;
	display: block;
	height: auto;
}

figure.wide {
	margin-block: 3em;
}

figure.wide :is(img, svg) {
	margin-inline: calc((90vw - min(90vw, 42em)) / -2);
	max-width: 85vw;
}

figure .halfwidth {
	max-width: 50%;
	margin-inline: auto;
}

figure figcaption {
	padding: 0.5em;
	text-align: justify;
	text-align-last: center;
}

figure p {
	text-indent: 0;
}

figure :is(h4, h5, h6) {
	font-size: 1em;
	font-style: normal;
	font-weight: bold;
	margin-block: 0;
	padding: 0.5em;
}

@media (min-width: 30em) {
	figure {
		margin-inline: 1em;
	}

	figure figcaption {
		padding: 0.5em;
		text-align: justify;
		text-align-last: center;
	}
}