/**********************************************************************
* 
**********************************************************************/

/******************************************************** Settings ***/

@ribbon-mark-offset: 5px;

@ribbon-mark-size: 10px;

@single-image-indicator-size: 10px;



/********************************************************** Mixins ***/

.user-select (@mode: auto) {
	-moz-user-select: @mode;
	-webkit-user-select: @mode;
	-o-user-select: @mode;
	-ms-user-select: @mode;
	user-select: @mode;
}


.origin (@x:top, @y:left) {
	-webkit-transform-origin: @arguments;
	-ms-transform-origin: @arguments;
	transform-origin: @arguments;
}


.transform (@deg:0deg, @scaleX:1, @scaleY:1) {
	-webkit-transform: rotate(@deg) scaleY(@scaleY) scaleX(@scaleX);
	-moz-transform: rotate(@deg) scaleY(@scaleY) scaleX(@scaleX);
	-o-transform: rotate(@deg) scaleY(@scaleY) scaleX(@scaleX);
	-ms-transform: rotate(@deg) scaleY(@scaleY) scaleX(@scaleX);
	transform: rotate(@deg) scaleY(@scaleY) scaleX(@scaleX);
}
.rotate (@deg) {
	.transform(@deg)
}
.flipped-vertically () {
	.transform(0deg, 1, -1)
}
.flipped-horizontally () {
	.transform(0deg, -1, 1)
}



/********************************************************* utility ***/
.expanding-text .hidden {
	display: none;
}
.expanding-text:hover .shown {
	display: none;
}
.expanding-text:hover .hidden {
	display: inline;
}



/*********************************************************************/

body {
	font-family: sans-serif;
	padding: 0px;
	margin: 0px;
}



/************************************************************** UI ***/

.title-bar {
	display: block;
	position: fixed;
	content: "";

	top: 0px;
	left: 0px;
	height: 20px;
	width: 100%;

	color: white;
	background: black;

	overflow: hidden;

	opacity: 0;

	z-index: 10000;

	/* node-webkit */
	-webkit-app-region: drag;
}
.title-bar:hover {
	opacity: 1;
}

.title-bar .title {
	display: inline-block;
	float: left;

	height: 20px;
	width: auto;

	color: white;
	background: transparent;

	font-size: 11px;
	font-style: italic;
	font-weight: bold;

	vertical-align: middle;
	text-align: left;

	margin: 2px;
	margin-left: 10px;
}

.title-bar .button {
	display: inline-block;
	float: right;

	width: 20px;
	height: 20px;

	color: white;
	background: transparent;

	font-size: 18px;
	vertical-align: middle;

	/* node-webkit */
	-webkit-app-region: no-drag;
}
.title-bar .button:hover {
	cursor: hand;
}

.title-bar .close:hover {
	color: red;
}

/*
.full-screen-mode .title-bar {
	display: none;
}
*/


/********************************************************** Viewer ***/
.viewer {
	position: relative;
	width: 100%;
	height: 100%;
	overflow: hidden;

	/*border: solid blue 1px;*/
	box-sizing: border-box;

	.user-select(none);
}



/****************************************************** Ribbon set ***/
.ribbon-set {
	position: absolute;
	display: block;

	/* NOTE: this needs for scaling/zooming to behave correctly and not 
		shift the element, when its dimensions change... 
		...this is because .ribbon-set will both be used for scaling 
		and aligning... */
	.origin(top, left);
}
.ribbon-set:empty:after {
	display: block;
	top: 0px;
	left: 0px;
	width: 100%;
	height: 100%;
	content: "Empty";
	text-align: center;
}



/********************************************************** Ribbon ***/
.ribbon {
	position: relative;
	display: block;
	height: auto;
	min-width: 0px;
	overflow: visible;
	white-space: nowrap;
	font-size: 0;

	margin-top: 20px;
	margin-bottom: 20px;
}
.ribbon:empty {
	display: none;
}
.ribbon:first-child {
	margin-top: 0px;
}
.ribbon:last-child {
	margin-bottom: 0px;
}



/*********************************************************** Image ***/
.image {
	position: relative;
	display: inline-block;
	vertical-align: middle;
	text-align:left;
	width: 300px;
	height: 300px;
	font-size: 12pt;
	overflow: hidden;

	box-sizing: border-box;
	color: white;

	text-shadow: black 0.1em 0.1em 0.4em, black 0.1em 0.1em;

	background: no-repeat 50% black;
	background-size: contain;
	/* XXX do we need this? */
	border: solid black 5px;
}
.current.image {
	background: no-repeat 50% black;
	background-size: contain;

	/* XXX remove this... */
	border: solid red 5px;
}

/* image turning... */
/* NOTE: need to account for proportions after turning... */
.image[orientation="90"] {
	.rotate(90deg);
}
.image[orientation="180"] {
	.rotate(180deg);
}
.image[orientation="270"] {
	.rotate(270deg);
}


/* Flipped vertically only... */
/* NOTE: wee need to do all possible combinations here as we can't 
 	combine different parts of a transform attr from different 
 	classes */
.image[flipped*="vertical"] {
	.flipped-vertically;
}
.image[orientation="90"][flipped="vertical"] {
	.transform(90deg, 1, -1)
}
.image[orientation="180"][flipped="vertical"] {
	.transform(180deg, 1, -1)
}
.image[orientation="270"][flipped="vertical"] {
	.transform(270deg, 1, -1)
}


/* Flipped horizontally only... */
.image[flipped*="horizontal"] {
	.flipped-horizontally;
}
.image[orientation="90"][flipped="horizontal"] {
	.transform(90deg, -1)
}
.image[orientation="180"][flipped="horizontal"] {
	.transform(180deg, -1)
}
.image[orientation="270"][flipped="horizontal"] {
	.transform(270deg, -1)
}

/* Flipped vertically and horizontally... */
.image[flipped*="vertical"][flipped*="horizontal"] {
	.transform(0deg, -1, -1)
}
.image[orientation="90"][flipped*="vertical"][flipped*="horizontal"] {
	.transform(90deg, -1, -1)
}
.image[orientation="180"][flipped*="vertical"][flipped*="horizontal"] {
	.transform(180deg, -1, -1)
}
.image[orientation="270"][flipped*="vertical"][flipped*="horizontal"] {
	.transform(270deg, -1, -1)
}


/* default backgrounds */
/* XXX not sure if we need these... 
.image {
	background-image: url(images/loading.gif);
}
.image[orientation="90"] {
	background-image: url(images/loading-90deg.gif);
}
.image[orientation="180"] {
	background-image: url(images/loading-180deg.gif);
}
.image[orientation="270"] {
	background-image: url(images/loading-270deg.gif);
}
*/



/***************************************************** Image marks ***/

.marks-visible.viewer .marked.image:after {
	display: block;
	position: absolute;
	content: "";
	font-size: 0pt;
	border: none;

	width: @ribbon-mark-size;
	height: @ribbon-mark-size;

	top: auto;
	bottom: @ribbon-mark-offset;
	left: auto;
	right: @ribbon-mark-offset;

	border-radius: 50%;
	background: blue;
}
.marks-visible.viewer .marked.image[orientation="270"][flipped*="vertical"][flipped*="horizontal"]:after,
.marks-visible.viewer .marked.image:not([orientation])[flipped*="vertical"]:after,
.marks-visible.viewer .marked.image[orientation="0"][flipped*="vertical"]:after,
.marks-visible.viewer .marked.image[orientation="180"][flipped="horizontal"]:after,
.marks-visible.viewer .marked.image[orientation="90"]:not([flipped]):after {
	top: @ribbon-mark-offset;
	bottom: auto:
	left: auto;
	right: @ribbon-mark-offset;
}
.marks-visible.viewer .marked.image:not([orientation])[flipped*="vertical"][flipped*="horizontal"]:after,
.marks-visible.viewer .marked.image[orientation="0"][flipped*="vertical"][flipped*="horizontal"]:after,
.marks-visible.viewer .marked.image[orientation="270"][flipped="vertical"]:after,
.marks-visible.viewer .marked.image[orientation="90"][flipped="horizontal"]:after,
.marks-visible.viewer .marked.image[orientation="180"]:not([flipped]):after {
	top: @ribbon-mark-offset;
	bottom: auto;
	left: @ribbon-mark-offset;
	right: auto;
}
.marks-visible.viewer .marked.image[orientation="90"][flipped*="vertical"][flipped*="horizontal"]:after,
.marks-visible.viewer .marked.image[orientation="180"][flipped="vertical"]:after,
.marks-visible.viewer .marked.image:not([orientation])[flipped*="horizontal"]:after,
.marks-visible.viewer .marked.image[orientation="0"][flipped*="horizontal"]:after,
.marks-visible.viewer .marked.image[orientation="270"]:not([flipped]):after {
	top: auto;
	bottom: @ribbon-mark-offset;
	left: @ribbon-mark-offset;
	right: auto;
}

/* NOTE: we use a different mark representation for single image mode... */
.marks-visible.single-image-mode.viewer .marked.image:after {
	display: none;
}

/* corner mark... (a-la bookmarks in PortableMag) 
 * XXX account for flipping... */
/*
@ribbon-mark-offset: -15px;

.marks-visible.viewer .marked.image:after {
	display: block;
	position: absolute;
	content: "";
	font-size: 0pt;
	border: none;

	width: 30px;
	height: 30px;

	top: @ribbon-mark-offset;
	right: @ribbon-mark-offset;

	background: blue;

	.rotate(45deg)
}
.marks-visible.viewer .marked.image[orientation="90"]:after {
	top: @ribbon-mark-offset;
	left: @ribbon-mark-offset;
}
.marks-visible.viewer .marked.image[orientation="180"]:after {
	bottom: @ribbon-mark-offset;
	left: @ribbon-mark-offset;
}
.marks-visible.viewer .marked.image[orientation="270"]:after {
	bottom: @ribbon-mark-offset;
	right: @ribbon-mark-offset;
}
*/


/* XXX should we use opacity??? */
.marked-only-view.viewer:not(.marks-visible) .image:not(.marked) {
	opacity: 0.3;
}



/****************************************************** Image info ***/
.image .inline-image-info {
	display: none;

	position: absolute;
	bottom: 0px;
	width: 100%;
	background: black;
	opacity: 0.7;
}
.image .inline-image-info:hover {
	.user-select(auto);
}
.image .inline-image-info::selection {
	color: white;
	background: red;
}
.image-info-visible.viewer .global-image-info,
.image-info-visible.viewer .image:hover .inline-image-info {
	display: block;
}
.single-image-mode.viewer .image:hover .inline-image-info {
	display: none;
}
.image[orientation="90"] .inline-image-info {
	top: auto;
	left: 100%;
	.origin(bottom, left);
	.rotate(-90deg);
}
.image[orientation="180"] .inline-image-info {
	top: 0px;
	bottom: auto;
	.rotate(180deg);
}
.image[orientation="270"] .inline-image-info {
	top: auto;
	left: auto;
	right: 100%;
	.origin(bottom, right);
	.rotate(90deg);
}


/* compensate for flipping... */
/* XXX START: I hate this code, will think if a better way to do this... */
.image:not([orientation="90"])[flipped*="horizontal"] .inline-image-info {
	.flipped-horizontally;
}
.image[orientation="90"][flipped*="horizontal"] .inline-image-info {
	top: auto;
	bottom: 100%;
	left: -100%;
	right: auto;
	.origin(bottom, right);
	.transform(90deg, -1, 1);
}
.image[orientation="180"][flipped*="horizontal"] .inline-image-info {
	top: auto;
	bottom: 100%;
	left: 0px;
	right: auto;
	.origin(bottom, right);
	.transform(180deg, -1, 1);

}
.image[orientation="270"][flipped*="horizontal"] .inline-image-info {
	top: auto;
	bottom: 0px;
	left: 0px;
	right: auto;
	.origin(bottom, right);
	.transform(270deg, -1, 1);
}

.image[flipped*="vertical"] .inline-image-info {
	top: 0px;
	bottom: auto;
	.flipped-vertically;
}
.image[orientation="90"][flipped*="vertical"] .inline-image-info {
	top: auto;
	bottom: 100%;
	left: 100%;
	right: auto;
	.origin(bottom, left);
	.transform(-270deg, 1, -1);
}
.image[orientation="180"][flipped*="vertical"] .inline-image-info {
	top: auto;
	bottom: 0px;
	left: -100%;
	right: auto;
	.origin(bottom, right);
	.transform(180deg, 1, -1);
}
.image[orientation="270"][flipped*="vertical"] .inline-image-info {
	top: auto;
	bottom: 100%;
	left: -100%;
	right: auto;
	.origin(bottom, right);
	.transform(270deg, 1, -1);
}

.image[flipped*="vertical"][flipped*="horizontal"] .inline-image-info {
	top: 0px;
	bottom: auto;
	.transform(0deg, -1, -1);
}
.image[orientation="90"][flipped*="vertical"][flipped*="horizontal"] .inline-image-info {
	top: auto;
	bottom: 0px;
	left: -100%;
	right: auto;
	.origin(bottom, right);
	.transform(-90deg, -1, -1);
}
.image[orientation="180"][flipped*="vertical"][flipped*="horizontal"] .inline-image-info {
	top: auto;
	bottom: 0px;
	left: auto;
	right: auto;
	.origin(bottom, right);
	.transform(180deg, -1, -1);
}
.image[orientation="270"][flipped*="vertical"][flipped*="horizontal"] .inline-image-info {
	top: auto;
	bottom: 100%;
	left: auto;
	right: auto;
	.origin(bottom, right);
	.transform(90deg, -1, -1);
}
/* XXX END */


.overlay-info {
	display: none;
	position: absolute;

	bottom: 0px;
	left: 0px;
	width: 100%;
	padding: 2px;
	padding-left: 10px;
	padding-right: 10px;
	box-sizing: border-box;

	background: black;
	color: white;

	opacity: 0.6;
}
.overlay-info:hover {
	.user-select(auto);
}
.overlay-info .float-right {
	float: right;
}
.overlay-info .secondary {
	font-style: italic;
	font-size: small;
	color: silver;
}
.overlay-info::selection,
.overlay-info ::selection {
	color: white;
	background: red;
}



/*************************************************** Global status ***/
.global-status {
	display: block;
	opacity: 1;
	z-index: 1000;
}



/****************************************************** Indicators ***/
.up-indicator,
.down-indicator,
.start-indicator,
.end-indicator,
.top-indicator,
.bottom-indicator
{
	display: block;
	position: absolute;
	content: "";
	top: 0px;
	left: 50%;
	height: 50px;
	width: 100px;
	margin-left: -50px;

	overflow: hidden;

	cursor: hand;
}
.up-indicator:after,
.down-indicator:after {
	display: inline-block;
	position: absolute;
	content: "";
	width: 50px;
	height: 50px;

	bottom: -25px;
	left: 25px;

	background: yellow;

	.rotate(45deg);
}
.down-indicator {
	top: auto;
	bottom: 0px;
}
.down-indicator:after {
	top: -25px;
	bottom: auto;
}
.start-indicator,
.end-indicator {
	left: 0px;
	width: 10px;
	height: 100%;
	margin: 0px;

	background: yellow;
}
.end-indicator {
	left: auto;
	right: 0px;
}
.top-indicator,
.bottom-indicator {
	left: 0px;
	height: 10px;
	width: 100%;
	margin: 0px;

	background: yellow;
}
.bottom-indicator {
	top: auto;
	bottom: 0px;
}

/* default state */
.up-indicator,
.down-indicator,
.start-indicator,
.end-indicator, 
.top-indicator,
.bottom-indicator
{
	display: none;
}


/* these are generic containers for indicators */
.global-mode-indicators,
.context-mode-indicators {
	position: absolute;
	height: 20px;
	width: auto;
	min-width: 300px;
	text-align: right;

	color: transparent;
}

.global-mode-indicators {
	top: 20px;
	right: 20px;
}
.context-mode-indicators {
	right: 20px;
	bottom: 20px;
}

.global-mode-indicators .mode-tip,
.context-mode-indicators .mode-tip {
	display: none;
	opacity: 0.5;
	font-weight: bold;
	color: gray;
}
.global-mode-indicators:hover .mode-tip,
.context-mode-indicators:hover .mode-tip {
	display: inline-block;
}

.global-mode-indicators > *,
.context-mode-indicators > * {
	font-size: small;
	vertical-align: center;
	margin-left: 10px;
}

.global-mode-indicators .circle,
.context-mode-indicators .circle {
	display: inline-block;
	width: @single-image-indicator-size;
	height: @single-image-indicator-size;
	border-radius: 50%;
}

/* hide indicators in single image mode */
.single-image-mode.viewer .global-mode-indicators {
	opacity: 0.5;
}
.light.single-image-mode.viewer .global-mode-indicators {
	opacity: 0.1;
}
.dark.single-image-mode.viewer .global-mode-indicators {
	opacity: 0.6;
}
.single-image-mode.viewer .global-mode-indicators:hover {
	opacity: 1;
}


/* actual indicators */
/* marks... */
.global-mode-indicators .marked-only-visible,
.global-mode-indicators .marks-visible,
.context-mode-indicators .current-image-marked {
	display: none;
	color: blue;
	height: 20px;
	vertical-align: center;
}
.global-mode-indicators .marked-only-visible .shown,
.global-mode-indicators .marks-visible .shown,
.context-mode-indicators .current-image-marked .shown {
	display: none;
}
.global-mode-indicators .marked-only-visible:after,
.global-mode-indicators .marks-visible:after,
.context-mode-indicators .current-image-marked:after {
	display: inline-block;
	width: 6px;
	height: 6px;
	border-radius: 50%;
	content: "";
	background-color: blue;
	border: solid 2px blue;
	margin-left: 5px;

	margin-top: 3px;
	top: 50%;
}
.marks-visible.viewer .global-mode-indicators .marks-visible {
	display: inline-block;
}
.marked-only-view.viewer .global-mode-indicators .marks-visible {
	display: none;
}
.marked-only-view.viewer .global-mode-indicators .marked-only-visible {
	display: inline-block;
}
.marked-only-view.viewer:not(.marks-visible) .global-mode-indicators .marked-only-visible:after {
	background-color: transparent;
}
/* image mark in single image mode... */
.context-mode-indicators .current-image-marked {
	display: none;
	color: blue;
}
.single-image-mode.marks-visible.viewer .context-mode-indicators .current-image-marked.shown {
	display: inline-block;
}



/********************************************** Mode: single image ***/

.single-image-mode.viewer .image {
	background-color: transparent;
	/* NOTE: need to keep a distance from screen borders... */
	border: solid transparent 2px;
}
.single-image-mode.viewer .image:not(.current) {
	/* XXX for some reason this breaks the alignment on large magnifications...
	display: none;
	*/
	/* XXX this makes images pass through the :visible filter...
	opacity: 0;
	*/
	visibility: hidden;
}



/********************************************************** Themes ***/

/* XXX this is by no means final... */
.viewer,
.light.viewer,
.light.viewer .overlay-block .background {
	background: white;
}

.gray.viewer,
.gray.viewer .overlay-block .background {
	background: #333;
}

.dark.viewer,
.dark.viewer .overlay-block .background {
	background: #0a0a0a;
}



/********************************************************* Overlay ***/

.overlay-block {
	display: none;
	position: absolute:
	top: 0px;
	left: 0px;
	height: 100%;
	width: 100%;
}
.viewer.overlay .overlay-block {
	display: block;
}
.overlay-block .content {
}
.overlay-block .background {
	position: absolute:
	top: 0px;
	left: 0px;
	height: 100%;
	width: 100%;
	opacity: 0.7;
}



/************************************************************ Help ***/

/* XXX make this more generic, and not just for the keyboard... */

/* this is for sliding stuff */
.viewer.drawer-mode {
	box-shadow: 0px 0px 50px 0px silver;
}

/* help */
.keyboard-help {
	width: 80%;
	margin-top: 20px;
	margin-left: 15%;
	margin-right: 5%;
	margin-bottom: 100px;
}
.keyboard-help .section-doc {
	font-size: small;
	vertical-align: top;
	font-style: italic;
}
.keyboard-help th {
	text-align: left;
	height: 50px;
	vertical-align: bottom;
	border-bottom: solid gray 1px;
}
.keyboard-help tr:hover {
	background: #eee;
	vertical-align: top;
}
.keyboard-help tr td:first-child {
	color: gray;
	font-style: italic;
	padding-right: 20px;
	padding-left: 10px;
}
.keyboard-help .section-doc td:only-child {
	padding-right: 0px;
	padding-left: 0px;
}



/**********************************************************************
* vim:set spell ft=css :                                             */