.nxButtonBackground {
	display: inline-block;
	position: relative;
	padding: 0;
	margin: 2px 5px;
}

.nxButton {
	-webkit-user-select: none;
	user-select: none;
	position: relative;
	cursor: pointer;
	text-align: center;
	-ms-touch-action: none;
}

.nxButton * {
	pointer-events: none;
}

.nxButton.nxButtonSelected, .nxButton.nxButtonDisabled  {
	cursor: default;
}

.nxButton img {
	pointer-events: none;
}

.nxButtonBackground.nxButtonOverlay {
	display: block;
	position:  absolute;
	z-index: 10;
}


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

	buttons using SVG as icons

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

.nxButton svg {
	fill: currentColor;
	pointer-events: none;
}

.nxButton svg * {
	fill: currentColor;
}

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

	text and mixed buttons / theme: default

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

.nxButtonBackground.theme_default {
	border-radius: 5px;
}

.nxButton.theme_default:not(.nxButtonIconOnly) {
	/* text or mixed button, inactive state*/
	padding: 2px 15px;
	border-radius: 5px;
	background: linear-gradient(to bottom,  #ffffff 0%,#c7c7c7 100%);
	color: #222;
	border: 1px solid #666;
	font-size: 0.9em;
}

.nxButtonHovered.theme_default:not(.nxButtonPressed):not(.nxButtonIconOnly) {
	/* text or mixed button, hovered but not pressed */
	color: #000000;
	background: linear-gradient(to bottom,  #def0fa 0%,#86b4e1 64%,#abcbea 100%);
}

.nxButton.theme_default.nxButtonActive:not(.nxButtonIconOnly),
.nxButton.theme_default.nxButtonSelected:not(.nxButtonIconOnly) {
	/* text or mixed button, active or selected */
	color: #000000;
	background: linear-gradient(to bottom,  #86b4e1 0%,#abcbea 12.7%,#def0fa 100%);
	box-shadow: inset 1px 1px 2px rgba(0, 0, 0, 0.5);
}

.nxButtonSmallIcon.theme_default {
	vertical-align: text-top;
	margin-left: -5px;
	margin-right: 5px;
}

.nxButtonDisabled.theme_default:not(.nxButtonIconOnly) {
	/* text or mixed button, disabled */
	background: #f0f0f0;
	color: #c1c1c1;
	border-style: solid;
	border-color: #c1c1c1;
}

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

	default text and mixed button / theme: default

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

.nxButtonBackground.theme_default.defaultButton {
	/* default button pulsating background */
	-webkit-animation-name: pulsate;
	-webkit-animation-iteration-count: infinite;
	-webkit-animation-direction: alternate;
	-webkit-animation-timing-function: ease-in-out;
	animation-name: pulsate;
	animation-iteration-count: infinite;
	animation-direction: alternate;
	animation-timing-function: ease-in-out;
	-webkit-animation-duration: 1.5s;
	animation-duration: 1.5s;
}

.nxButton.theme_default.defaultButton {
	/* default button transparency in order to see pulsating background */
	background-image: linear-gradient(to bottom, rgba(255, 255, 255, 0.88) 0%, rgba(255, 255, 255, 0) 100%);
}

@-webkit-keyframes pulsate {

	from {
		background-color: #60c2ff;
	}

	to {
		background-color: #ccebff;
	}

}

@keyframes pulsate {

	from {
		background-color: #60c2ff;
	}

	to {
		background-color: #ccebff;
	}

}


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

	image buttons

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

.nxButton.theme_default.nxButtonActive.nxButtonIconOnly,
.nxButton.theme_default.nxButtonSelected.nxButtonIconOnly,
.nxButtonHovered.theme_default.nxButtonIconOnly:not(.nxButtonPressed) {
	/* image button, active or selected */
	filter: brightness(120%); /* Current draft standard */
	-webkit-filter: brightness(120%);
	color: #0059bf;
}

.nxButtonHovered.theme_default.nxButtonIconOnly.nxButtonPressed {
	/* image button, hovered but not pressed */
	top:  1px;
}

.nxButtonHovered.nxButtonIconOnly > .nxButtonHoverIcon + .nxButtonIcon,
.nxButtonActive.nxButtonIconOnly > .nxButtonHoverIcon+.nxButtonIcon {
	display: none;
}

.nxButtonIconOnly:not(.nxButtonHovered):not(.nxButtonActive) > .nxButtonHoverIcon {
	display: none;
}

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

	disabled icons
	
*********************/

.nxButtonDisabled.theme_default img {
	/* icon of a disabled button */
	filter: contrast(50%) brightness(130%) grayscale(100%); /* Current draft standard */
	-webkit-filter: contrast(50%) brightness(130%) grayscale(100%);
}


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

	tooltip

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

.nxButtonTooltip {
	border: 1px solid #333;
	border-radius: 5px;
	position: fixed;
	background-color: rgba(0, 0, 0, 0.75);
	z-index: 1000;
	top: 100%;
	left:  50%;
	padding: 5px 10px;
	color: #EEE;
	margin-top: 8px;
	text-align: center;
	opacity: 1;
	pointer-events: none;
	font-size: 12px;
}

.nxButtonTooltipPoint {
	background-color: rgba(0, 0, 0, 0.75);
	width: 10px;
	margin: 0 auto 0 auto;
	height: 10px;
	top: 2px;
	-webkit-transform: rotate(-45deg);
	transform: rotate(-45deg);
	position: relative;

}

.nxButtonTooltipPointFrame {
	height: 7px;
	top: -8px;
	position: absolute;
	overflow: hidden;
	width: 100%;
	left: 0;
}

.nxButtonHovered + .nxButtonTooltip {
	visibility: visible;
}

.nxButtonTooltip:empty {
	display: none;
}