/**
 * Less mixins shared between both legacy and Vector 2022.
 */

@import '../common/variables.less';

.mixin-vector-menu-heading() {
	align-self: center;
	color: @color-base--subtle;
	font-weight: normal;
	cursor: default;
	// NOTE: Setting these values does not produce a visible border.
	// That's handled elsewhere with either border-top-style or border-bottom-style.
	border-color: @border-color-portal-heading;
	border-width: @border-width-base;
}

// Defines the arrow beside dropdown headings.
.mixin-vector-legacy-menu-heading-arrow {
	content: '';
	background: url( ../common/images/arrow-down.svg ) 100% 50% no-repeat;
	width: unit( 16 / @font-size-tabs / @font-size-browser, em );
	height: unit( 16 / @font-size-tabs / @font-size-browser, em );
}

.mixin-vector-menu-heading-arrow() {
	content: '';
	background: url( ../common/images/arrow-down.svg ) 100% 50% no-repeat;
	width: unit( 16 / @font-size-tabs / @font-size-browser, em );
	height: unit( 16 / @font-size-tabs / @font-size-browser, em );
	// https://phabricator.wikimedia.org/T319070#8284272
	margin-left: -1px;
}

// Remove this mixin after VectorPageTools is enabled everywhere
.mixin-vector-dropdown-menu-item-deprecated() {
	min-height: @height-dropdown-menu-item;
	padding: @padding-dropdown-menu-item;
}

.mixin-vector-dropdown-menu-item() {
	display: flex;
	align-items: center;
	padding: @padding-vertical-dropdown-menu-item @padding-horizontal-dropdown-menu-item;
	font-size: @font-size-dropdown;

	&:not( .mw-selflink ):visited {
		color: @color-link;
	}

	&.selected a,
	&.selected a:visited {
		color: @color-link-selected;
	}
}

// Scroll indicator used by TOC and page tools.
.mixin-vector-scroll-indicator() {
	// Add extra padding for the fade scrollable indicator.
	padding-bottom: @height-scroll-indicator - @padding-vertical-dropdown-menu-item;

	&:after {
		content: '';
		display: block;
		position: absolute;
		bottom: 0;
		left: 0;
		right: 0;
		height: @height-scroll-indicator;
		background: linear-gradient( rgba( 255, 255, 255, 0 ), @background-color-page-container );
		background-repeat: no-repeat;
		background-position: -12px; // T311436 Hacky way to prevent the fade from covering the scrollbar
		pointer-events: none; // Make the link below the fade clickable
	}
}