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/**
 * @file plugins/themes/default/styles/head.less
 *
 * Copyright (c) 2014-2021 Simon Fraser University
 * Copyright (c) 2003-2021 John Willinsky
 * Distributed under the GNU GPL v3. For full terms see the file docs/COPYING.
 *
 * @ingroup pkp_structure_head
 *
 * @brief Classes for the page header structural elements
 */
@nav-menu-height: @quadruple;

// Structural components of the header layout
.pkp_structure_head {
	background-color: @bg-base;
	border-bottom: @bg-border;
}

.pkp_head_wrapper {
	position: relative;
}

.pkp_site_name_wrapper {
	height: @nav-menu-height;

@media (min-width: @screen-desktop) {
		height: auto;
	}
}

// Site logo/name
.pkp_site_name {
	position: absolute;
	left: @nav-menu-height;
	right: 0;
	margin-top: 0;
	margin-bottom: 0;
	padding-left: @base;
	text-align: left;
	overflow: hidden;
	text-overflow: ellipsis;
	white-space: nowrap;
	color: @text-bg-base;
	font-family: @font-site-title;
	font-size: @font-sml;

> a {
		padding-top: @base;
		padding-bottom: @base;

&:focus {
			outline: 0;
		}
	}

.is_img {
		display: inline-block;
		margin-top: @half;
		margin-bottom: @half;
		padding: 0;

&:focus {
			outline: 1px solid @text-bg-base;
		}

img {
			display: block;
			max-height: @nav-menu-height - @base;
			max-width: 100%;
			width: auto;
			height: auto;
		}
	}

.is_text {
		font-family: @font-site-title;
		font-size: @font-sml;
		font-weight: @bold;
		line-height: @nav-menu-height;
		color: @text-bg-base;
		text-decoration: none;

&:focus {
			text-decoration: underline;
		}
	}
}

.pkp_navigation_primary_wrapper {
	padding-left: 0;
	padding-right: 0;
}

// Mobile navigation menu
.pkp_site_nav_menu {
	position: absolute;
	width: 100%;
	top: 100%;
	background:@bg-base;
	left: 0;
	padding: @base;
	z-index: 9999;

.pkp_nav_list {
		padding-left: 0;
		margin-left: 0;
	}

ul {
		&:extend(.pkp_unstyled_list);

ul {
			padding-left: 0.5rem;
		}
	}

a {
		display: inline-block;
		padding: 0.125rem 0;
		color: @text-bg-base;
		text-decoration: none;

&:hover,
		&:focus {
			color: @text-bg-base;
			text-decoration: underline;
		}
	}

#siteNav {
		position: absolute;
		top: 0;
		height: 0;
	}
}

.pkp_navigation_user {

&.pkp_navigation_user {
		margin-left: auto;
		margin-right: auto;
		margin-top: 1rem;
		padding-top: 1rem;
		border-top: 1px solid @bg-base-border-color;
	}

.task_count {
		display: inline-block;
		width: @double;
		height: @double;
		margin-left: 0.5em;
		border-radius: 50%;
		background: @bg-base-border-color;
		line-height: @double;
		text-align: center;
		font-size: 0.857rem;
		position: relative;
		top: 0.3rem; // helps visually center the number
	}

// Hide the top-level task count in mobile nav
	> li > a .task_count {
		display: none;
	}

> li > ul a {
		.task_count {
			display: inline-block;
			background: @bg-base-border-color;
			color: @text-bg-base;
		}

&:hover .task_count,
		&:focus .task_count {
			background: @text;
		}
	}
}

.pkp_navigation_search_wrapper {
	margin-top: 1rem;
	padding-top: 1rem;
	border-top: 1px solid @bg-base-border-color;
}

// The padding to apply to top-level items in the navigation row
// Total height - line height (divided by 2 since it will be applied to top and bottom)
@pkp_nav_primary_row_el_padding: @base;

@media (min-width: @screen-desktop) {
	.pkp_head_wrapper {
		padding-top: @triple * 2; // Make room for the user nav at the top
	}

.pkp_site_nav_toggle {
		display: none;
	}

.pkp_site_name {
		position: relative;
		width: 100%;
		left: auto;
		right: auto;
		padding: 0;
		white-space: normal;
		font-size: 2em; // Prevents extra vertical space after logos
		background: transparent;
		overflow: visible;

.is_text {
			font-family: @font-site-title;
			font-size: @font-header;
			line-height: @line-header;
		}

.is_img img {
			max-height: 80px; // must match height - padding of .is_img
		}
	}

.pkp_site_nav_menu {
		display: block;
		position: static;
		top: auto;
		padding: 0;

ul ul {
			padding-left: 0;
		}
	}

// Site logo/nav on same line on larger screens
	.has_site_logo .pkp_head_wrapper {
		padding-top: @triple;
	}

.pkp_nav_list {
		margin: 0;
		padding: 0;
		list-style: none;

li {
			position: relative;
			display: inline-block;
		}

a {
			display: inline-block;
			padding-left: @base;
			padding-right: @base;
			text-decoration: none;
			padding-top: @half;
			padding-bottom: @half;

&:hover,
			&:focus {
				text-decoration: none;
			}
		}

ul {
			position: absolute;
			top: 100%;
			left: -9999px;
			z-index: 1000;
			width: 15em;
			margin: 0;
			padding: 0;
			background: @bg;
			border-radius: @radius;
			box-shadow: 0 0 5px rgba(0, 0, 0, 0.3);

li {
				display: block;
			}

a {
				display: block;
				padding-left: @half;
				border-left: @half solid transparent;
				color: @primary;

&:hover,
				&:focus {
					outline: 0;
					background: @bg-shade;
					border-color: @primary;
					color: @primary;
				}
			}

li:first-child a {
				border-top-left-radius: @radius;
				border-top-right-radius: @radius;
			}

li:last-child a {
				border-bottom-left-radius: @radius;
				border-bottom-right-radius: @radius;
			}
		}

> li:hover ul {
			left: 0;
		}

[aria-haspopup]:after {
			position: relative;
			display: inline-block;
			content: "";
			width: 0;
			height: 0;
			margin-left: 0.25em;
			border-top: 4px solid;
			border-right: 4px solid transparent;
			border-left: 4px solid transparent;
			vertical-align: middle;
			overflow: hidden;
		}
	}

// Primary site navigation menu
	.pkp_navigation_primary {
		text-align: center;

> li {
			> a {
				margin: @half 0.5em 0;
				padding: @half 0.5em
					calc(~"@{pkp_nav_primary_row_el_padding} - 2px"); // -2 to account for border size
				border-bottom: 2px solid transparent;
				color: @text-bg-base;
				text-decoration: none;

&:hover {
					color: @text-bg-base;
					outline: 0;
					border-color: @text-bg-base;
				}

&:focus {
					background: @text-bg-base;
					color: @bg-base;
					outline: 0;
				}
			}

&:first-child {
				a {
					margin-left: -0.5em;
				}
			}

&:last-child {
				a {
					margin-right: -0.5em;
				}
			}
		}

> li:hover ul {
			left: 1rem;
		}

ul a {
			padding-top: @base;
			padding-bottom: @base;
		}

[aria-haspopup]:hover {
			border-color: transparent;
		}

.dropdown-menu a:focus,
		.dropdown-menu a:hover {
			border-color: @primary;
		}

@media (min-width: @screen-desktop) {
			display: inline-block;
			max-width: 80%;
			text-align: left;
		}
	}

// Bootstrap dropdown components
	.dropdown-menu {
		display: none;

&.show {
			display: block;
		}
	}

[data-toggle="dropdown"]:hover + .dropdown-menu,
	.dropdown-menu:hover {
		display: block;
	}

// User-focused navigation menu
	.pkp_navigation_user_wrapper {
		position: absolute;
		top: 0;
		left: 50%;
		transform: translateX(-50%);
		padding-left: @base;
		padding-right: @base;
		text-align: right;
		padding-top: 0;
		margin-top: 0;
		border-top: none;
		z-index: 1000;
	}

.pkp_navigation_user {
		text-align: right;
		font-size: @font-sml;
		padding-right: @double;

&.pkp_navigation_user {
			margin: 0;
			padding: 0;
			border: none;
		}

li {
			text-align: left;
		}

a {
			padding-top: @half;
			padding-bottom: @half;
			line-height: @line-sml;
		}

> li > a:focus {
			outline: 0;
			background: @text-bg-base;
			color: @bg-base;
		}

ul {
			width: 10em;
		}

> li:hover ul {
			right: 0;
			left: auto;
		}

// Align to the right edge of the container
		> li:last-child > a {
			margin-right: -@base;
		}

// Show the top-level task count in desktop nav
		> li > a .task_count {
			display: inline-block;
		}

> li > a:focus .task_count {
			background: @bg-base;
			color: @text-bg-base;
		}

> li > ul a {
			.task_count {
				display: none;
			}
		}
	}

.pkp_navigation_search_wrapper {
		float: right;
		margin: 0;
		padding: 0;
		border: none;

a {
			margin: @half 0.5em 0;
			padding: @half 0.5em
				calc(~"@{pkp_nav_primary_row_el_padding} - 2px"); // -2 to account for border size
			border-bottom: 2px solid transparent;
			color: @text-bg-base;
			text-decoration: none;

&:hover {
				color: @text-bg-base;
				outline: 0;
				border-color: @text-bg-base;
				text-decoration: none;
			}

&:focus {
				background: @text-bg-base;
				color: @bg-base;
				outline: 0;
				text-decoration: none;
			}
		}
	}
}