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

/**
 * Targets:
 * - language variants, Actions menus
 * - more menu, user menu
 * - ULS button in sticky header
 */
.emptyPortlet .vector-menu-heading,
.vector-menu-dropdown .vector-menu-heading,
.mw-interlanguage-selector {
	display: flex;
	color: @color-base--subtle;

	&:after {
		content: '';
		background: url( 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 );
		// Modify the color of the image from the default #202122 to approx. #404244 to match the text.
		opacity: 0.84;
	}

	&:hover,
	&:focus {
		color: @color-base;

		&:after {
			opacity: 1;
		}
	}
}

.vector-menu-dropdown {
	direction: ltr;
	float: left;
	cursor: pointer;
	position: relative;

	// The menu itself.
	.vector-menu-content {
		background-color: @background-color-base;
		list-style: none;
		line-height: 1.125em;
		// Match the width of the dropdown "heading" (the tab)
		min-width: 100%;
		position: absolute;
		top: 100%;
		left: -@border-width-base;
		margin: 0;
		border: @border-width-base @border-style-base @border-color-base;
		padding: 0;
		box-shadow: 0 1px 1px 0 rgba( 0, 0, 0, 0.1 );
		text-align: left;
		opacity: 0;
		visibility: hidden;
		transition-property: opacity;
		transition-duration: @transition-duration-base;
		z-index: @z-index-menu;
	}

	// Hide and show menu content based off checked status.
	.vector-menu-checkbox:checked ~ .vector-menu-content {
		opacity: 1;
		visibility: visible;
	}

	ul {
		// display list style images introduced in typography.less.
		list-style: none;
	}

	li {
		padding: 0;
		margin: 0;
		text-align: left;
		line-height: 1em;

		a {
			padding: 0.625em;
			color: @color-link;
			display: block;
			white-space: nowrap;
			cursor: pointer;
		}
	}

	.selected a,
	.selected a:visited {
		color: @color-link-selected;
		text-decoration: none;
	}
}

// Invisible checkbox covering the dropdown menu handle
.vector-menu-checkbox {
	cursor: pointer;
	position: absolute;
	top: 0;
	left: 0;
	z-index: @z-index-menu-checkbox;
	opacity: 0;
	width: 100%;
	height: 100%;
	margin: 0;
	padding: 0;
	// Hide the checkbox completely in browsers that don't support :checked
	display: none;

	:not( :checked ) > & {
		// When the browser supports :checked, display it
		display: block;
	}
}

.vector-menu-dropdown-noicon {
	.vector-menu-heading {
		// `padding-top` needs to scale with font-size.
		padding: 1.25em 8px 6px;
		font-weight: normal;
	}

	// Add focus state to legacy menu dropdown buttons (i.e. p-variants, p-cactions)
	.vector-menu-checkbox:focus + .vector-menu-heading {
		// Simulate browser focus ring
		outline: dotted 1px; // Firefox style
		outline: auto -webkit-focus-ring-color; // Webkit style
	}
}