// Mixins

.opacity(@opacity:0.5) {
	opacity: @opacity;
	@opacityie: @opacity * 100;
	filter: ~"alpha(opacity=@{opacityie})";
	zoom: 1;
}

.vertical-gradient(@startColor: #FDFDFD, @endColor: #DDD) {
	background-color: mix(@startColor, @endColor, 60%);
	background-image: -moz-linear-gradient(top, @startColor, @endColor); // FF 3.6+
	background-image: -webkit-gradient(linear, 0 0, 0 100%, from(@startColor), to(@endColor)); // Safari 4+, Chrome 2+
	background-image: -webkit-linear-gradient(top, @startColor, @endColor); // Safari 5.1+, Chrome 10+
	background-image: -o-linear-gradient(top, @startColor, @endColor); // Opera 11.10
	background-image: linear-gradient(to bottom, @startColor, @endColor); // Standard, IE10
	background-repeat: repeat-x;
	filter: e(%("progid:DXImageTransform.Microsoft.gradient(startColorstr='%d', endColorstr='%d', GradientType=0)",argb(@startColor),argb(@endColor)));
	zoom: 1;
}

.border-radius(@radius:3px) {
	-webkit-border-radius: @radius;
	-moz-border-radius: @radius;
	border-radius: @radius;
}

.box-shadow(@shadowA:#ccc 5px 5px 5px, @shadowB:X, ...){
	// Multiple shadow solution from http://toekneestuck.com/blog/2012/05/15/less-css-arguments-variable/
	@props: ~`"@{arguments}".replace(/[\[\]]|\,\sX/g, '')`;
	-webkit-box-shadow: @props;
	-moz-box-shadow: @props;
	box-shadow: @props;
}

.transition(@transition) {
	-webkit-transition: @transition;
	transition: @transition;
}

.inline-block() {
	display: inline-block;

	// IE7
	*display: inline;
	*zoom: 1;
}

.reset-gradient() {
	filter: e(%("progid:DXImageTransform.Microsoft.gradient(enabled = false)"));
	background: transparent;
}

.button-background(@startColor, @endColor, @textColor: #fff, @textShadow: 0 -1px 0 rgba(0,0,0,.25)) {
	color: @textColor;
	text-shadow: @textShadow;
	.vertical-gradient(@startColor, @endColor);
	border-color: @endColor @endColor darken(@endColor, 15%);
	border-color: rgba(0,0,0,.1) rgba(0,0,0,.1) fadein(rgba(0,0,0,.1), 15%);
}