htex/src/md/footnotes.css

Academic writing for the 21st century

.footnote-ref,
.footnote-item::before {
	font-size: 70%;
	vertical-align: super;
}

.footnote-item {
	position: relative;
	padding-inline-start: .5em;
	margin-inline-start: -1em;
	page-break-before: avoid;
	counter-increment: footnote;
	font-size: 70%;
	line-height: 1.2;

	&:nth-child(1 of &) {
		margin-top: 1em;
		padding-block-start: 1lh;
		background: linear-gradient(currentcolor 0% 100%) 0 0 / var(--footnotes-separator-length, 15ch) var(--footnotes-separator-thickness, 1px) no-repeat;

		.footnote-marker {
			inset-block-start: 1lh;
		}
	}

	.footnote-marker {
		position: absolute;
		inset-inline-end: 100%;
		inset-block-start: 0;
	}
}

.footnote-backref {
	font-family: monospace;

	&::after {
		/* Prevent display as emoji */
		content: "\FE0E";
	}
}