/**
 * Table of Contents
 *
 * Default styles for the display of table of contents in @media screen.
 *
 * Styles for @media print are inside print.css.
 */

@import 'mediawiki.mixins.less';
@import 'mediawiki.skin.variables.less';

/* stylelint-disable selector-class-pattern */

/* Table of Contents */
.toc,
.toccolours {
	background-color: @background-color-neutral-subtle;
	border: @border-width-base @border-style-base @border-color-base;
	padding: 5px;
	font-size: 95%;
}

/**
 * We want to display the ToC element with intrinsic width in block mode. The fit-content
 * value for width is however not supported by large groups of browsers.
 *
 * We use display:table. Even though it should only contain other table-* display
 * elements, there are no known problems with using this.
 */
.toc {
	display: table;
	padding: 7px;

	h2 {
		display: inline;
		border: 0;
		padding: 0;
		font-size: 100%;
		font-weight: bold;
	}

	.toctitle {
		text-align: center;
		direction: ltr;
	}

	ul {
		list-style: none;
		margin: 0.3em 0;
		padding: 0;
		text-align: start;

		ul {
			margin: 0;
			.margin-inline( 2em, 0 );
		}
	}
}

/* CSS for backwards-compatibility with cached page renders and creative uses in wikitext */
table.toc {
	border-collapse: collapse;

	/* Remove additional paddings inside table-cells that are not present in <div>s */
	td {
		padding: 0;
	}
}

/* Separate columns for tocnumber and toctext */
.tocnumber,
.toctext {
	display: table-cell;
	/*
	 * Text decorations are not propagated to the contents of inline blocks and inline tables,
	 * according to <https://www.w3.org/TR/css-text-decor-3/#line-decoration>, and 'display: table-cell'
	 * generates an inline table when used without any parent table-rows and tables.
	 */
	text-decoration: inherit;
}

.tocnumber {
	color: @color-base;
}

/* Overwrite the style="display:none" and make the checkbox invisible on another way to */
/* allow to focus the checkbox with keyboard. */
.toctogglecheckbox {
	// Make the checkbox visible to allow it to focus with keyboard.
	display: inline !important; /* stylelint-disable-line declaration-no-important */
	// Remove any size of the checkbox.
	position: absolute;
	// Make the checkbox invisible.
	opacity: 0;
	// Prevent that the checkbox is clickable and changes the cursor.
	z-index: -1;
}

.toctogglespan {
	font-size: 94%;
}

.toctogglespan::before {
	content: ' [';
}

.toctogglespan::after {
	content: ']';
}

/* Make the label look like a link. */
.toctogglelabel {
	color: @color-link;
	cursor: pointer;
}

.toctogglelabel:hover {
	text-decoration: underline;
}

/* Show a focus ring around the label when focusing the invisible checkbox. */
/* This simulates that the label is in focus. */
.toctogglecheckbox:focus + .toctitle .toctogglelabel {
	text-decoration: underline;
	outline: auto;
}

/* Change the text of the button based on the state of the checkbox. */
.toctogglecheckbox:checked + .toctitle .toctogglelabel::after {
	content: '@{msg-showtoc}';
}

.toctogglecheckbox:not( :checked ) + .toctitle .toctogglelabel::after {
	content: '@{msg-hidetoc}';
}
