/* Viewer used by the photos of a single recognition item on Recognitions.php.
   Scoped to [data-recognition-gallery] so no other gallery on the site is
   affected. Styled to match the gallery lightbox already used elsewhere. */

[data-recognition-gallery] img {
	cursor: pointer;
}

.pss-recbox {
	position: fixed;
	top: 0;
	left: 0;
	right: 0;
	bottom: 0;
	z-index: 99999;
	background: #000;
	display: none;
	-webkit-user-select: none;
	-moz-user-select: none;
	-ms-user-select: none;
	user-select: none;
}

.pss-recbox.is-open {
	display: block;
}

/* The window the photo is drawn in. Anything that grows past it while zoomed
   is clipped, so the buttons around it always stay reachable. */
.pss-recbox-stage {
	position: absolute;
	top: 52px;
	left: 0;
	right: 0;
	bottom: 62px;
	z-index: 1;
	padding: 0 66px;
	overflow: hidden;
	text-align: center;
	white-space: nowrap;
}

.pss-recbox-stage:before {
	content: "";
	display: inline-block;
	height: 100%;
	vertical-align: middle;
}

.pss-recbox-image {
	display: inline-block;
	vertical-align: middle;
	max-width: 100%;
	max-height: 100%;
	transform: translate(0, 0) scale(1);
	-webkit-transform: translate(0, 0) scale(1);
	transform-origin: center center;
	-webkit-transform-origin: center center;
	transition: opacity 0.15s ease-in, transform 0.15s ease-out;
	-webkit-transition: opacity 0.15s ease-in, -webkit-transform 0.15s ease-out;
}

.pss-recbox.is-loading .pss-recbox-image {
	opacity: 0.25;
}

/* While zoomed the photo can be dragged, so it follows the finger or pointer
   immediately instead of easing into place. */
.pss-recbox.is-zoomed .pss-recbox-image {
	cursor: move;
	cursor: grab;
	cursor: -webkit-grab;
}

.pss-recbox.is-panning .pss-recbox-image {
	cursor: grabbing;
	cursor: -webkit-grabbing;
	transition: none;
	-webkit-transition: none;
}

.pss-recbox-title {
	position: absolute;
	top: 0;
	left: 0;
	right: 0;
	z-index: 2;
	padding: 14px 60px 30px;
	color: #fff;
	font-size: 16px;
	line-height: 22px;
	text-align: center;
	text-shadow: 0 1px 3px #000;
	pointer-events: none;
	background: -webkit-linear-gradient(top, rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0));
	background: linear-gradient(to bottom, rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0));
}

.pss-recbox-close,
.pss-recbox-nav,
.pss-recbox-zoom {
	position: absolute;
	/* must sit above the stage, otherwise the stage swallows the clicks */
	z-index: 3;
	padding: 0;
	margin: 0;
	border: 0;
	background: rgba(0, 0, 0, 0.45);
	color: #fff;
	cursor: pointer;
	line-height: 1;
	outline: none;
	font-family: Arial, Helvetica, sans-serif;
	-webkit-appearance: none;
	-webkit-touch-callout: none;
	touch-action: manipulation;
}

.pss-recbox-close:hover,
.pss-recbox-nav:hover,
.pss-recbox-zoom:hover,
.pss-recbox-close:focus,
.pss-recbox-nav:focus,
.pss-recbox-zoom:focus {
	background: #395c97;
}

.pss-recbox-close {
	top: 10px;
	right: 12px;
	width: 40px;
	height: 40px;
	font-size: 28px;
	border-radius: 50%;
}

.pss-recbox-nav {
	top: 50%;
	width: 46px;
	height: 64px;
	margin-top: -32px;
	font-size: 34px;
	border-radius: 3px;
}

.pss-recbox-prev {
	left: 14px;
}

.pss-recbox-next {
	right: 14px;
}

/* Zoom buttons and the photo counter, centred along the bottom edge. */
.pss-recbox-bar {
	position: absolute;
	left: 0;
	right: 0;
	bottom: 0;
	z-index: 2;
	height: 62px;
	text-align: center;
	pointer-events: none;
	background: -webkit-linear-gradient(bottom, rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0));
	background: linear-gradient(to top, rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0));
}

.pss-recbox-zoom {
	position: static;
	display: inline-block;
	vertical-align: middle;
	width: 40px;
	height: 40px;
	margin: 11px 10px;
	font-size: 24px;
	border-radius: 50%;
	pointer-events: auto;
}

.pss-recbox-zoom[disabled] {
	opacity: 0.35;
	cursor: default;
}

.pss-recbox-zoom[disabled]:hover,
.pss-recbox-zoom[disabled]:focus {
	background: rgba(0, 0, 0, 0.45);
}

.pss-recbox-counter {
	display: inline-block;
	vertical-align: middle;
	min-width: 58px;
	color: #fff;
	font-size: 14px;
	letter-spacing: 1px;
	text-shadow: 0 1px 3px #000;
}

.pss-recbox.is-single .pss-recbox-nav {
	display: none;
}

@media (max-width: 767px) {
	/* on a phone the photo uses nearly the full width and the arrows sit
	   over its edges, so the picture stays as large as possible */
	.pss-recbox-stage {
		top: 46px;
		bottom: 54px;
		padding: 0 10px;
	}

	.pss-recbox-title {
		padding: 11px 52px 26px;
		font-size: 14px;
		line-height: 18px;
	}

	.pss-recbox-nav {
		width: 34px;
		height: 52px;
		margin-top: -26px;
		font-size: 26px;
	}

	.pss-recbox-prev {
		left: 6px;
	}

	.pss-recbox-next {
		right: 6px;
	}

	.pss-recbox-bar {
		height: 54px;
	}

	.pss-recbox-zoom {
		width: 36px;
		height: 36px;
		margin: 9px 8px;
		font-size: 21px;
	}
}