/*--------------------------------------------------------------*/
/* !## UI Mixins */
/*--------------------------------------------------------------*/

// Center block
@mixin center-block {

	display: block;
	margin-left: auto;
	margin-right: auto;
}

@mixin vertical-align( $position: relative ) {

	position: $position;
	left: 50%;
	top: 50%;
	-webkit-transform: translateY(-50%);
	-ms-transform: translateY(-50%);
	transform: translateY(-50%);
}

@mixin center-align( $position: relative ) {

	position: $position;
	top: 50%;
	left: 50%;
	-webkit-transform: translate( -50%, -50% );
	-ms-transform: translate( -50%, -50% );
	transform: translate( -50%, -50% );
}

// Clearfix
@mixin clearfix() {

	content: "";
	display: table;
	table-layout: fixed;
}

// Clear after (not all clearfix need this also)
@mixin clearfix-after() {

	clear: both;
}

@mixin gutter-width( $width: $size_content, $gutter-width: $gutter ) {

	padding-left: ($gutter-width * .5);
	padding-right: ($gutter-width * .5);
	width: calc(#{$width});
}

// Button
@mixin button($color: $color__link, $round: 30px) {

	@include list-item();
	@include rounded($round);
	background: $color__background-body;
	border: 1px solid;
	border-color: $color__border-transparent;
	box-shadow: 2px 4px 5px rgba(0, 0, 0, 0.25);
	color: $color__text-main;
	line-height: 1;
	outline: none;
	padding: 1em $gutter;
	-webkit-transition: all 0.3s ease;
	-moz-transition: 	all 0.3s ease;
	-o-transform: 		all 0.3s ease;
	-ms-transform: 		all 0.3s ease;
	transition: 		all 0.3s ease;

	&:hover {

		@include animation('bounce-reveal 0.3s cubic-bezier(0.645, 0.045, 0.355, 1)');
		background: $color;
		border-color: $color;
		color: $color__background-body;
	}

	&:active,
	&:focus {

		border-color: $color__border-button-focus;
		box-shadow: 0px 1px 2px rgba(0, 0, 0, 0.125);
		-webkit-transform: 	scale(.925);
		-moz-transform: 	scale(.925);
		-o-transform: 		scale(.925);
		-ms-transform: 		scale(.925);
		transform: 			scale(.925);
	}
}

/**
 * Non obstructive border
 * - Src: http://stackoverflow.com/questions/11765642/sass-optimize-borders-into-one-line-of-code
 * - Usage: @include non-border(2px solid shade($ccblue, 10%), bottom, right);
 */

@mixin non-border ($style, $sides...) {

	@if ( $style != "" ) {

		position: relative;

		&:before {
			content: "";
			position: absolute;
			z-index: 2;

			@if ($sides == "") {

				border: $style;

			} @else {

				@each $side in $sides {

					@if ($side == 'none') {
						border: none;
					}

					@if ($side == 'top' or
						$side == 'right' or
						$side == 'bottom' or
						$side == 'left') {
						border-#{$side}: $style;
					}

					@if ($side == 'top') {
						height: 0;
						top: 0;
						left: 0;
						width: 100%;
					}

					@if ($side == 'right') {
						height: 100%;
						top: 0;
						right: 0;
						left: inherit;
						width: 0;
					}

					@if ($side == 'bottom') {
						bottom: 0;
						height: 0;
						left: 0;
						width: 100%;
					}

					@if ($side == 'left') {
						height: 100%;
						left: 0;
						top: 0;
						right: inherit;
						width: 0;
					}
				}
			}
		}
	}
}

// Rounded Corners
@mixin rounded($radius: 0.5em) {

	-webkit-border-radius: $radius;
	-moz-border-radius: $radius;
	border-radius: $radius;
}

// Rounded Bottom Corners
@mixin rounded-bottom($radius: 0.5em) {

	-webkit-border-bottom-left-radius: $radius;
	-moz-border-bottom-left-radius: $radius;
	border-bottom-left-radius: $radius;
	-webkit-border-bottom-right-radius: $radius;
	-moz-border-bottom-right-radius: $radius;
	border-bottom-right-radius: $radius;
}

// Rounded Bottom Corners
@mixin rounded-top($radius: 0.5em) {
	-webkit-border-top-left-radius: $radius;
	-moz-border-top-left-radius: $radius;
	border-top-left-radius: $radius;
	-webkit-border-top-right-radius: $radius;
	-moz-border-top-right-radius: $radius;
	border-top-right-radius: $radius;
}

// Rounded Paper
@mixin paper($color: $color__border-button, $background: $color__background-body) {

	background: $background;
	border: 1px solid $color;
	@include rounded();
	overflow: hidden;
}

// Rounded Bottom Paper
@mixin paperbottom($color: $color__border-button, $background: $color__background-body) {

	background: $background;
	border: 1px solid $color;
	@include rounded-bottom();
	overflow: hidden;
}

// Rounded Top Paper
@mixin papertop($color: $color__border-button, $background: $color__background-body) {

	background: $background;
	border: 1px solid $color;
	@include rounded-top();
	overflow: hidden;
}

// Flat Paper
@mixin paperflat($color: $color__border-button, $background: $color__background-body) {

	background: $background;
	border: 1px solid $color;
	overflow: hidden;
}

@mixin show-screen-reader-text() {

    clip: inherit;
    position: inherit !important;
    height: inherit;
    left: inherit;
    overflow: visible;
    width: inherit;
}

@mixin hide-this() {

	clip: rect(1px, 1px, 1px, 1px);
	position: absolute !important;
	height: 1px;
	width: 1px;
	overflow: hidden;

	&:focus {

		background-color: $color__background-screen;
		border-radius: 3px;
		box-shadow: 0 0 2px 2px rgba(0, 0, 0, 0.6);
		clip: auto !important;
		color: $color__text-screen;
		display: block;
		@include font-size(0.875);
		font-weight: bold;
		height: auto;
		left: 5px;
		line-height: normal;
		padding: 15px 23px 14px;
		text-decoration: none;
		top: 5px;
		width: auto;
		z-index: 100000; /* Above WP toolbar. */
	}
}


@mixin linear-gradient( $top_color: rgba( 255, 255, 255, 0 ), $bottom_color: rgba( 0, 0, 0, .125 ) ) {

	/* Safari 4-5, Chrome 1-9 */
	background: -webkit-gradient( linear, 0% 0%, 0% 100%, from( #{ $bottom_color } ), to( #{ $top_color } ) );

	/* Safari 5.1, Chrome 10+ */
	background: -webkit-linear-gradient( top, $top_color, $bottom_color );

	/* Firefox 3.6+ */
	background: -moz-linear-gradient( top, $top_color, $bottom_color );

	/* IE 10 */
	background: -ms-linear-gradient( top, $top_color, $bottom_color );

	/* Opera 11.10+ */
	background: -o-linear-gradient( top, $top_color, $bottom_color );
}