server/core/css/apps.scss

/**
 * @copyright Copyright (c) 2016-2017, John Molakvoæ <skjnldsv@protonmail.com>
 * @copyright Copyright (c) 2016, Julius Haertl <jus@bitgrid.net>
 * @copyright Copyright (c) 2016, Morris Jobke <hey@morrisjobke.de>
 * @copyright Copyright (c) 2016, pgys <info@pexlab.space>
 * @copyright Copyright (c) 2016, Lukas Reschke <lukas@statuscode.ch>
 * @copyright Copyright (c) 2016, Stefan Weil <sw@weilnetz.de>
 * @copyright Copyright (c) 2016, Roeland Jago Douma <rullzer@owncloud.com>
 * @copyright Copyright (c) 2016, jowi <sjw@gmx.ch>
 * @copyright Copyright (c) 2015, Hendrik Leppelsack <hendrik@leppelsack.de>
 * @copyright Copyright (c) 2015, Thomas Müller <thomas.mueller@tmit.eu>
 * @copyright Copyright (c) 2015, Vincent Petry <pvince81@owncloud.com>
 * @copyright Copyright (c) 2014-2017, Jan-Christoph Borchardt <hey@jancborchardt.net>
 *
 * @license GNU AGPL version 3 or any later version
 *
 */

/* BASE STYLING ---------------------------------------------------------- */

h2 {
	font-size: 20px;
	font-weight: 300;
	margin-bottom: 12px;
	line-height: 140%;
}

h3 {
	font-size: 15px;
	font-weight: 300;
	margin: 12px 0;
}

/* do not use italic typeface style, instead lighter color */
em {
	font-style: normal;
	opacity: .5;
}

dl {
	padding: 12px 0;
}

dt,
dd {
	display: inline-block;
	padding: 12px;
	padding-left: 0;
}

dt {
	width: 130px;
	white-space: nowrap;
	text-align: right;
}

kbd {
	padding: 4px 10px;
	border: 1px solid #ccc;
	box-shadow: 0 1px 0 rgba(0, 0, 0, .2);
	border-radius: var(--border-radius);
	display: inline-block;
	white-space: nowrap;
}


/* APP STYLING -------------------------------------------------------------- */

#app {
	height: 100%;
	width: 100%;
	* {
		box-sizing: border-box;
	}
}

/* APP-NAVIGATION ------------------------------------------------------------*/

/* Navigation: folder like structure */

#app-navigation {
	width: 250px;
	height: 100%;
	float: left;
	box-sizing: border-box;
	background-color: var(--color-main-background);
	padding-bottom: 44px;
	-webkit-user-select: none;
	-moz-user-select: none;
	-ms-user-select: none;
	user-select: none;
	border-right: 1px solid var(--color-border);
	display: flex;
	flex-direction: column;

	/* 'New' button */
	.app-navigation-new {
		display: block;
		padding: 10px;
		button {
			display: inline-block;
			width: 100%;
			padding: 10px;
			padding-left: 34px;
			background-position: 10px center;
			text-align: left;
			margin: 0;
		}
	}

	li {
		position: relative;
	}
	> ul {
		position: relative;
		height: 100%;
		width: inherit;
		overflow-x: hidden;
		overflow-y: auto;
		box-sizing: border-box;
		display: flex;
		flex-direction: column;
		> li {
			display: inline-flex;
			flex-wrap: wrap;
			order: 1;
			flex-shrink: 0;

			/* Pinned-to-bottom entries */
			&.pinned {
				order: 2;
				&.first-pinned {
					margin-top: auto !important;
				}
			}

			> .app-navigation-entry-deleted {
				/* Ugly hack for overriding the main entry link */
				padding-left: 44px !important;
			}
			> .app-navigation-entry-edit {
				/* Ugly hack for overriding the main entry link */
				/* align the input correctly with the link text
				   44px-6px padding for the input */
				padding-left: 38px !important;
			}

			&:hover,
			&:focus,
			&:active,
			&.active,
			a.selected {
				&,
				> a {
					opacity: 1;
					box-shadow: inset 4px 0 var(--color-primary);
				}
			}

			/* a instead of li is focused by keyboards */
			a:focus,
			a:active {
				opacity: 1;
				box-shadow: inset 4px 0 var(--color-primary);
			}

			/* align loader */
			&.icon-loading-small:after {
				left: 22px;
				top: 22px;
			}

			/* hide and animate deletion/collapse of subitems */
			&.deleted,
			&.collapsible:not(.open) {
				> ul {
					opacity: 0;
					max-height: 0;
					/* bezier override the hide/slow effect due to the 2000 max-height */
					transition: max-height 1000ms cubic-bezier(0, 1, 0, 1),
								opacity 250ms ease-in-out;
				}
			}

			&.app-navigation-caption {
				font-weight: bold;
				line-height: 44px;
				padding: 0 44px;
				white-space: nowrap;
				text-overflow: ellipsis;
				// !important to overwrite specific hover and focus
				opacity: .7;
				box-shadow: none !important;
				user-select: none;
				pointer-events:none;

				&:not(:first-child) {
					margin-top: 22px;
				}
			}

			/* Second level nesting for lists */
			> ul {
				flex: 0 1 auto;
				width: 100%;
				transition: max-height 2000ms ease-in-out,
							opacity 250ms ease-in-out;
				max-height: 9999px;
				opacity: 1;
				position: relative;
				> li {
					display: inline-flex;
					flex-wrap: wrap;
					padding-left: 44px;
					&:hover,
					&:focus,
					&.active,
					a.selected {
						&,
						> a {
							opacity: 1;
						}
					}

					&.active {
						box-shadow: inset 4px 0 var(--color-primary);
					}

					/* align loader */
					&.icon-loading-small:after {
						left: 22px; /* 44px / 2 */
					}

					> .app-navigation-entry-deleted {
						/* margin to keep active indicator visible */
						margin-left: 4px;
						padding-left: 84px;
					}

					> .app-navigation-entry-edit {
						/* margin to keep active indicator visible */
						margin-left: 4px;
						/* align the input correctly with the link text
						44px+44px-4px-6px padding for the input */
						padding-left: 78px !important;
					}
				}
			}
		}
		/* Menu and submenu */
		> li,
		> li > ul > li {
			position: relative;
			width: 100%;
			box-sizing: border-box;
			/* hide icons if loading */
			&.icon-loading-small {
				> a,
				> .app-navigation-entry-bullet {
					/* hide icon or bullet if loading state*/
					background: transparent !important;
				}
			}
			/* Main entry link */
			> a {
				background-size: 16px 16px;
				background-position: 14px center;
				background-repeat: no-repeat;
				display: block;
				justify-content: space-between;
				line-height: 44px;
				min-height: 44px;
				padding: 0 12px 0 44px;
				overflow: hidden;
				box-sizing: border-box;
				white-space: nowrap;
				text-overflow: ellipsis;
				color: var(--color-main-text);
				opacity: .57;
				flex: 1 1 0px;
				z-index: 100; /* above the bullet to allow click*/
				/* TODO: forbid using img as icon in menu? */
				&:first-child img {
				    margin-right: 11px;
				    width: 16px;
				    height: 16px;
				    margin-left: -30px;
				}

				/* counter can also be inside the link */
				> .app-navigation-entry-utils  {
					display: inline-block;
					float: right;
					.app-navigation-entry-utils-counter {
						padding-right: 0 !important;
					}
				}
			}
			/* Bullet icon */
			> .app-navigation-entry-bullet {
				position: absolute;
				display: block;
				margin: 16px;
				width: 12px;
				height: 12px;
				border: none;
				border-radius: 50%;
				cursor: pointer;
				transition: background 100ms ease-in-out;

				+ a {
					/* hide icon if bullet, can't have both */
					background: transparent !important;
				}
			}

			/* popover fix the flex positionning of the li parent */
			> .app-navigation-entry-menu {
				top: 44px;
			}

			/* show edit/undo field if editing/deleted */
			&.editing .app-navigation-entry-edit {
				opacity: 1;
				z-index: 250;
			}
			&.deleted .app-navigation-entry-deleted {
				transform: translateX(0);
				z-index: 250;
			}
		}
	}
	&.hidden {
		display: none;
	}
	&.without-app-settings {
		padding-bottom: 0;
	}

	/**
	 * Button styling for menu, edit and undo
	 */
	.app-navigation-entry-utils .app-navigation-entry-utils-menu-button > button,
	.app-navigation-entry-deleted .app-navigation-entry-deleted-button {
		border: 0;
		opacity: 0.5;
		background-color: transparent;
		background-repeat: no-repeat;
		background-position: center;
		&:hover,
		&:focus {
			background-color: transparent;
			opacity: 1;
		}
	}

	/**
	 * Collapsible menus
	 */
	.collapsible {
		/* Fallback for old collapse button.
		   TODO: to be removed. Leaved here for retro compatibility */
		.collapse {
			opacity: 0;
			position: absolute;
			width: 44px;
			height: 44px;
			margin: 0;
			z-index: 110;
		}
		&:before {
			position: absolute;
			height: 44px;
			width: 44px;
			margin: 0;
			padding: 0;
			background: none;
			background-image: url('../img/actions/triangle-s.svg?v=1');
			background-size: 16px;
			background-repeat: no-repeat;
			background-position: center;
			border: none;
			border-radius: 0;
			outline: none !important;
			box-shadow: none;
			content: ' ';
			opacity: 0;
			-webkit-transform: rotate(-90deg);
			-ms-transform: rotate(-90deg);
			transform: rotate(-90deg);
			z-index: 50;
		}

		/* force padding on link no matter if 'a' has an icon class */
		> a:first-child {
			padding-left: 44px;
		}
		&:before,
		> a {
			transition: background 100ms ease-in-out,
						transform 250ms ease-in-out,
						opacity 100ms ease-in-out;
		}
		&:hover > a,
		&:focus > a {
			background-position-x: -50px;
		}
		&:hover,
		&:focus {
			&:before {
				opacity: 1;
			}
			.app-navigation-entry-bullet {
				background: transparent !important;
			}
		}
		&.open {
			&:before {
				-webkit-transform: rotate(0);
				-ms-transform: rotate(0);
				transform: rotate(0);
			}
		}
	}

	/**
	 * App navigation utils, buttons and counters for drop down menu
	 */
	.app-navigation-entry-utils {
		flex: 0 1 auto;
		ul {
			display: flex !important;
			align-items: center;
			justify-content: flex-end;
		}
		li {
			width: 44px !important;
			height: 44px;
		}
		button {
			height: 100%;
			width: 100%;
			margin: 0;
			box-shadow: none;
		}
		.app-navigation-entry-utils-menu-button {
			/* Prevent bg img override if an icon class is set */
			button:not([class^='icon-']):not([class*=' icon-']) {
				background-image: url('../img/actions/more.svg?v=1');
			}
			&:hover button,
			&:focus button {
				background-color: transparent;
				opacity: 1;
			}
		}
		.app-navigation-entry-utils-counter {
			overflow: hidden;
			text-align: right;
			font-size: 9pt;
			line-height: 44px;
			padding: 0 12px; /* Same padding as all li > a in the app-navigation */

			&.highlighted {
				padding: 0;
				text-align: center;
				span {
					padding: 2px 5px;
					border-radius: 10px;
					background-color: var(--color-primary);
					color: var(--color-primary-text);
				}
			}
		}
	}

	/**
	 * Editable entries
	 */
	.app-navigation-entry-edit {
		padding-left: 5px;
		padding-right: 5px;
		display: block;
		width: calc(100% - 1px); /* Avoid border overlapping */
		transition: opacity 250ms ease-in-out;
		opacity: 0;
		position: absolute;
		background-color: var(--color-main-background);
		z-index: -1;
		form,
		div {
			display: inline-flex;
			width: 100%;
		}
		input {
			padding: 5px;
			margin-right: 0;
			height: 38px;
			&:hover,
			&:focus {
				/* overlapp borders */
				z-index: 1;
			}
		}
		input[type='text'] {
			width: 100%;
			min-width: 0; /* firefox hack: override auto */
			border-bottom-right-radius: 0;
			border-top-right-radius: 0;
		}
		button,
		input:not([type='text']) {
			width: 36px;
			height: 38px;
			flex: 0 0 36px;
			&:not(:last-child) {
				border-radius: 0 !important;
			}
			&:not(:first-child) {
				margin-left: -1px;
			}
			&:last-child {
				border-bottom-left-radius: 0;
				border-top-left-radius: 0;
			}
		}
	}

	/**
	 * Deleted entries with undo button
	 */
	.app-navigation-entry-deleted {
		display: inline-flex;
		padding-left: 44px;
		transform: translateX(250px);
		.app-navigation-entry-deleted-description {
			position: relative;
			white-space: nowrap;
			text-overflow: ellipsis;
			overflow: hidden;
			flex: 1 1 0px;
			line-height: 44px;
		}
		.app-navigation-entry-deleted-button {
			margin: 0;
			height: 44px;
			width: 44px;
			line-height: 44px;
			&:hover,
			&:focus {
				opacity: 1;
			}
		}
	}

	/**
	 * Common rules for animation of undo and edit entries
	 */
	.app-navigation-entry-edit,
	.app-navigation-entry-deleted  {
		width: calc(100% - 1px); /* Avoid border overlapping */
		transition: transform 250ms ease-in-out,
					opacity 250ms ease-in-out,
					z-index 250ms ease-in-out;
		position: absolute;
		left: 0;
		background-color: var(--color-main-background);
		box-sizing: border-box;
	}

	/**
	 * drag and drop
	 */
	.drag-and-drop {
		-webkit-transition: padding-bottom 500ms ease 0s;
		transition: padding-bottom 500ms ease 0s;
		padding-bottom: 40px;
	}

	.error {
		color: var(--color-error);
	}

	.app-navigation-entry-utils ul,
	.app-navigation-entry-menu ul {
		list-style-type: none;
	}
}

/* APP-CONTENT ---------------------------------------------------------------*/
/* Part where the content will be loaded into */
#app-content {
	position: relative;
	height: 100%;
	overflow-y: auto;
	/* no top border for first settings item */
	> .section:first-child {
		border-top: none;
	}
	&.with-app-sidebar {
		margin-right: 27%;
	}
}

#app-content-wrapper {
	min-width: 100%;
	min-height: 100%;
}

/* APP-SIDEBAR ----------------------------------------------------------------*/

/*
	Sidebar: a sidebar to be used within #app-content
	 have it as first element within app-content in order to shrink other
	 sibling containers properly. Compare Files app for example.
*/
#app-sidebar {
	position: fixed;
	top: 50px;
	right: 0;
	left: auto;
	bottom: 0;
	width: 27%;
	min-width: 300px;
	display: block;
	background: var(--color-main-background);
	border-left: 1px solid var(--color-border);
	-webkit-transition: margin-right 300ms;
	transition: margin-right 300ms;
	overflow-x: hidden;
	overflow-y: auto;
	visibility: visible;
	z-index: 500;
	&.disappear {
		visibility: hidden;
	}
}

/* APP-SETTINGS ---------------------------------------------------------------*/

/* settings area */
#app-settings {
	position: fixed;
	width: 250px;
	/* change to 100% when layout positions are absolute */
	bottom: 0;
	z-index: 140;
	&.open,
	&.opened {
		#app-settings-content {
			display: block;
		}
	}
}

#app-settings-content {
	display: none;
	padding: 10px;
	background-color: var(--color-main-background);
	/* restrict height of settings and make scrollable */
	max-height: 300px;
	overflow-y: auto;
	border-right: 1px solid var(--color-border);
	width: 250px;
	box-sizing: border-box;

	/* display input fields at full width */
	input[type='text'] {
		width: 93%;
	}

	.info-text {
		padding: 5px 0 7px 22px;
		color: var(--color-text-lighter);
	}
	input {
		&[type='checkbox'],
		&[type='radio'] {
			&.radio,
			&.checkbox {
				+ label {
					display: inline-block;
					width: 100%;
					padding: 5px 0;
				}
			}
		}
	}
}

#app-settings-header {
	border-right: 1px solid var(--color-border);
	width: 250px;
	box-sizing: border-box;
	background-color: var(--color-main-background);
}

.settings-button {
	display: block;
	height: 44px;
	width: 100%;
	padding: 0;
	margin: 0;
	background-color: var(--color-main-background);
	background-image: url('../img/actions/settings-dark.svg?v=1');
	background-position: 14px center;
	background-repeat: no-repeat;
	box-shadow: none;
	border: 0;
	border-radius: 0;
	text-align: left;
	padding-left: 42px;
	font-weight: 400;

	/* like app-navigation a */
	color: var(--color-main-text);
	opacity: .57;

	&.opened,
	&:hover,
	&:focus {
		background-color: var(--color-main-background);
		opacity: 1;
		box-shadow: inset 4px 0 var(--color-primary);
	}
}

/* GENERAL SECTION ---------------------------------------------------------- */
.section {
	display: block;
	padding: 30px;
	color: var(--color-text-lighter);
	margin-bottom: 24px;
	&.hidden {
		display: none !important;
	}
	/* slight position correction of checkboxes and radio buttons */
	input {
		&[type='checkbox'],
		&[type='radio'] {
			vertical-align: -2px;
			margin-right: 4px;
		}
	}
}
.sub-section {
	position: relative;
	margin-top: 10px;
	margin-left: 27px;
	margin-bottom: 10px;
}

.appear {
	opacity: 1;
	-webkit-transition: opacity 500ms ease 0s;
	-moz-transition: opacity 500ms ease 0s;
	-ms-transition: opacity 500ms ease 0s;
	-o-transition: opacity 500ms ease 0s;
	transition: opacity 500ms ease 0s;
	&.transparent {
		opacity: 0;
	}
}

/* TABS --------------------------------------------------------------------- */
.tabHeaders {
	display: inline-block;
	margin: 15px;
	.tabHeader {
		float: left;
		padding: 5px;
		cursor: pointer;
		color: var(--color-text-lighter);
		margin-bottom: 1px;
		a {
			color: var(--color-text-lighter);
			margin-bottom: 1px;
		}
		&.selected {
			font-weight: 600;
			border-bottom: 1px solid var(--color-border);
		}
		&:hover,
		&:focus {
			border-bottom: 1px solid var(--color-border);
		}
		&.selected,
		&:hover
		&:focus {
			margin-bottom: 0px;
			color: var(--color-main-text);
			a {
				margin-bottom: 0px;
				color: var(--color-main-text);
			}
		}
	}
}
.tabsContainer {
	clear: left;
	.tab {
		padding: 0 15px 15px;
	}
}

/* POPOVER MENU ------------------------------------------------------------- */
$popoveritem-height: 38px;
$popovericon-size: 16px;

.ie,
.edge {
	.bubble, .bubble:after,
	.popovermenu, .popovermenu:after,
	#app-navigation .app-navigation-entry-menu,
	#app-navigation .app-navigation-entry-menu:after {
		border: 1px solid var(--color-border);
	}
}

.bubble,
.app-navigation-entry-menu,
.popovermenu {
	position: absolute;
	background-color: var(--color-main-background);
	color: var(--color-main-text);
	border-radius: var(--border-radius);
	z-index: 110;
	margin: 5px;
	margin-top: -5px;
	right: 0;
	filter: drop-shadow(0 1px 3px var(--color-box-shadow));
	display: none;

	&:after {
		bottom: 100%;
	 /* Min-width of popover is 36px and arrow width is 20px
		wich leaves us 8px right and 8px left */
		right: 8px;
		/* change this to adjust the arrow position */
		border: solid transparent;
		content: ' ';
		height: 0;
		width: 0;
		position: absolute;
		pointer-events: none;
		border-bottom-color: var(--color-main-background);
		border-width: 10px;
	}
	/* Center the popover */
	&.menu-center {
		transform: translateX(50%);
		right: 50%;
		margin-right: 0;
		&:after {
			right: 50%;
			transform: translateX(50%);
		}
	}
	/* Align the popover to the left */
	&.menu-left {
		right: auto;
		left: 0;
		margin-right: 0;
		&:after {
			left: 6px;
			right: auto;
		}
	}

	&.open {
		display: block;
	}

	ul {
		/* Overwrite #app-navigation > ul ul */
		display: flex !important;
		flex-direction: column;
	}
	li {
		display: flex;
		flex: 0 0 auto;
		> button,
		> a,
		> .menuitem {
			cursor: pointer;
			line-height: $popoveritem-height;
			border: 0;
			background-color: transparent;
			display: flex;
			align-items: flex-start;
			height: auto;
			margin: 0;
			font-weight: 300;
			box-shadow: none;
			width: 100%;
			color: var(--color-main-text);
			/* Override the app-navigation li opacity */
			opacity: .7 !important;
			span[class^='icon-'],
			span[class*=' icon-'],
			&[class^='icon-'],
			&[class*=' icon-'] {
				min-width: 0; /* Overwrite icons*/
				min-height: 0;
				background-position: #{($popoveritem-height - $popovericon-size) / 2} center;
				background-size: $popovericon-size;
			}
			span[class^='icon-'],
			span[class*=' icon-'] {
				/* Keep padding to define the width to
				 assure correct position of a possible text */
				padding: #{$popoveritem-height / 2} 0 #{$popoveritem-height / 2} $popoveritem-height;
			}
			// If no icons set, force left margin to align
			&:not([class^='icon-']):not([class*='icon-']) {
				> span,
				> input,
				> form {
					&:not([class^='icon-']):not([class*='icon-']):first-child {
						margin-left: $popoveritem-height;
					}
				}
			}
			&[class^='icon-'],
			&[class*=' icon-'] {
				padding: 0 #{($popoveritem-height - $popovericon-size) / 2} 0 $popoveritem-height !important;
			}
			&:hover,
			&:focus,
			&.active {
				opacity: 1 !important;
			}
			/* prevent .action class to break the design */
			&.action {
				padding: inherit !important;
			}
			> span {
				cursor: pointer;
				white-space: nowrap;
			}
			> p {
				width: 150px;
				line-height: 1.6em;
				padding: 8px 0;
			}
			> select {
				margin: 0;
				margin-left: 6px;
			}
			/* Add padding if contains icon+text */
			&:not(:empty) {
				padding-right: 10px !important;
			}
			/* DEPRECATED! old img in popover fallback
			 * TODO: to remove */
			> img {
				width: $popovericon-size;
				padding: #{($popoveritem-height - $popovericon-size) / 2};
			}
			/* checkbox/radio fixes */
			> input.radio + label,
			> input.checkbox + label {
				padding: 0 !important;
				width: 100%;
			}
			> input.checkbox + label::before {
				margin: -2px 13px 0;
			}
			> input.radio + label::before {
				margin: -2px 12px 0;
			}
			> input:not([type=radio]):not([type=checkbox]):not([type=image]) {
				width: 150px;
			}
			form {
				display: flex;
				flex: 1 1 auto;
				/* put a small space between text and form
				   if there is an element before */
				&:not(:first-child)  {
					margin-left: 5px;
				}
			}
			/* no margin if hidden span before */
			> span.hidden + form,
			> span[style*='display:none'] + form {
				margin-left: 0;
			}
			/* Inputs inside popover supports text, submit & reset */
			input {
				min-width: #{$popoveritem-height - 4px}; /* twice the margin */
				max-height: #{$popoveritem-height - 4px}; /* twice the margin */
				margin: 2px 0;
				flex: 1 1 auto;
				&:not(:first-child) {
					margin-left: 5px;
				}
			}
		}
		/* css hack, only first not hidden*/
		&:not(.hidden):not([style*='display:none']) {
			&:first-of-type {
				> button, > a, > .menuitem {
					> form, > input {
						margin-top: 10px;
					}
				}
			}
			&:last-of-type {
				> button, > a, > .menuitem {
					> form, > input {
						margin-bottom: 10px;
					}
				}
			}
		}
		> button {
			padding: 0;
			span {
				opacity: 1;
			}
		}

	}
}

/* CONTENT WRAPPER  --------------------------------------------------------- */
#app-content-wrapper {
	display: flex;
	position: relative;
	align-items: start;
	height: 100%;
	width: 100%;
	.app-content-list,
	.app-content-detail {
		min-height: 100%;
		max-height: 100%;
		overflow-x: hidden;
		overflow-y: auto;
	}
}

/* CONTENT LIST ------------------------------------------------------------- */
.app-content-list {
	width: 300px;
	border-right: 1px solid var(--color-border);
	display: flex;
	flex-direction: column;
	transition: transform 250ms ease-in-out;

	/* Default item */
	.app-content-list-item {
		position: relative;
		height: 68px;
		border-top: 1px solid var(--color-border);
		cursor: pointer;
		padding: 10px 7px;
		display: flex;
		flex-wrap: wrap;
		align-items: center;
		flex: 0 0 auto;

		/* Icon fixes */
		&,
		> .app-content-list-item-menu {
			> [class^='icon-'],
			> [class*=' icon-'] {
				order: 4;
				width: 24px;
				height: 24px;
				margin: -10px;
				padding: 22px;
				opacity: .3;
					cursor: pointer;
				&:hover,
				&:focus {
					opacity: .7;
				}
				&[class^='icon-star'],
				&[class*=' icon-star'] {
					opacity: .7;
					&:hover,
					&:focus {
						opacity: 1 ;
					}

				}
				&.icon-starred {
					opacity: 1 ;
				}
			}
		}

		&:hover,
		&:focus,
		&.active {
			background-color: var(--color-background-dark);
		}

		.app-content-list-item-checkbox.checkbox + label,
		.app-content-list-item-star {
			position: absolute;
			height: 40px;
			width: 40px;
			display: flex;
			z-index: 50;
			+ .app-content-list-item-icon {
				opacity: .7;
			}
		}

		.app-content-list-item-checkbox.checkbox + label {
			top: 14px;
			left: 7px;
			&::before {
				margin: 0;
			}
			/* Hide the star, priority to the checkbox */
			~ .app-content-list-item-star {
				display: none;
			}
		}

		.app-content-list-item-star {
			top: 10px;
			left: 32px;
			background-size: 16px;
			height: 20px;
			width: 20px;
			margin: 0;
			padding: 0;
		}

		.app-content-list-item-icon {
			position: absolute;
			display: inline-block;
			height: 40px;
			width: 40px;
			line-height: 40px;
			border-radius: 50%;
			vertical-align: middle;
			margin-right: 10px;
			color: #fff;
			text-align: center;
			font-size: 1.5em;
			text-transform: capitalize;
			object-fit: cover;
			user-select: none;
			cursor: pointer;
			top: 50%;
			margin-top: -20px;
		}

		.app-content-list-item-line-one,
		.app-content-list-item-line-two {
			display: block;
			padding-left: 50px;
			white-space: nowrap;
			overflow: hidden;
			text-overflow: ellipsis;
			order: 1;
			flex: 1 1 0px;
			padding-right: 10px;
			cursor: pointer;
		}

		.app-content-list-item-line-two {
			opacity: .5;
			order: 3;
			flex: 1 0;
			flex-basis: calc(100% - 24px);
		}

		.app-content-list-item-details {
			order: 2;
			white-space: nowrap;
			overflow: hidden;
			text-overflow: ellipsis;
			max-width: 100px;
			opacity: .5;
			font-size: 80%;
			user-select: none;
		}

		.app-content-list-item-menu {
			order: 4;
			position: relative;
			.popovermenu {
				margin: 0;
				right: -5px;
			}
		}
	}
}

/* CONTENT ------------------------------------------------------------------ */
.app-content-detail {
	/* grow full width */
	flex-grow: 1;

	#app-navigation-toggle-back {
		display: none;
	}
}

/* MOBILE ------------------------------------------------------------------- */
/* Mobile width < 768px */
@media only screen and (max-width: 768px) {

	/* full width for message list on mobile */
	.app-content-list {
		width: 100%;
		background: var(--color-main-background);
		position: relative;
		z-index: 100;
	}

	/* overlay message detail on top of message list */
	.app-content-detail {
		background: var(--color-main-background);
		width: 100%;
		left: 0;
		height: 100%;
		top: 0;
		box-shadow: 0 0 100px rgba(100, 100, 100, .9);
		position: absolute;
	}

	/* Show app details page */
	#app-content.showdetails {
		#app-navigation-toggle {
			transform: translateX(-44px);
		}
		#app-navigation-toggle-back {
			position: fixed;
			display: inline-block !important;
			top: 45px;
			left: 0;
			width: 44px;
			height: 44px;
			z-index: 149;
			background-color: rgba(255, 255, 255, .7);
			cursor: pointer;
			opacity: .6;
			transform: rotate(90deg);
		}
		.app-content-list {
			transform: translateX(-100%);
		}
	}

	/* end of media query */
}