// Mixins
//
// @copyright Copyright (c) 2012 rocksolidthemes.com
// @license   https://rocksolidthemes.com/agb   No free usage allowed
//

@mixin hidpi {
	@media only screen and (-webkit-min-device-pixel-ratio: 1.3), only screen and (min--moz-device-pixel-ratio: 1.3), only screen and (-o-device-pixel-ratio: 4 / 3), only screen and (min-device-pixel-ratio: 1.3) {
		@content;
	}
}

@mixin ir($image-name: "", $image-extension: "png", $x: left, $y: top, $color: transparent) {
	@if $image-name != "" {
		background: $color inline-image(#{$image-name} + "." + #{$image-extension}, image/#{$image-extension}) $x $y no-repeat;
		width: image-width(#{$image-name} + "." + #{$image-extension});
		height: image-height(#{$image-name} + "." + #{$image-extension});
		display: block;
	}
	@if $image-name == "" {
		display: inline-block;
	}
	overflow: hidden;
	line-height: 0;
	text: {
		indent: -9999px;
		align: left;
	};
	br {
		display: none;
	}
	@if $image-name != "" {
		@include hidpi {
			background-image: inline-image(#{$image-name} + "-x2." + #{$image-extension}, "image/" + #{$image-extension});
			background-size: image-width(#{$image-name} + "." + #{$image-extension}), image-height(#{$image-name} + "." + #{$image-extension});
		}
	}
}

@mixin icon($content: "", $font-size: "100%", $line-height: 1) {
	font: #{$font-size}/#{$line-height} "RockSolid Icons";
	@if $content != "" {
		content: $content;
	}
	-webkit-font-smoothing: antialiased;
	font-smoothing: antialiased;
	text-rendering: geometricPrecision;
	text-indent: 0;
	display: inline-block;
	position: relative;
}

@mixin hidden {
	display: none !important;
	visibility: hidden;
}

@mixin visuallyhidden {
	border: 0;
	clip: rect(0 0 0 0);
	height: 1px;
	margin: -1px;
	overflow: hidden;
	padding: 0;
	position: absolute;
	width: 1px;
	&.focusable {
		&:active, &:focus {
			clip: auto;
			height: auto;
			margin: 0;
			overflow: visible;
			position: static;
			width: auto;
		}
	}
}

@mixin invisible {
	visibility: hidden;
}

@mixin clearfix {
	&:before {
		content: "";
		display: table;
	}
	&:after {
		content: "";
		display: table;
		clear: both;
	}
	zoom: 1;
}

@mixin placeholder {
	&:-webkit-placeholder {
		@content;
	}
	&:-moz-placeholder {
		@content;
	}
	&:-ms-placeholder {
		@content;
	}
	&:-o-placeholder {
		@content;
	}
	&:placeholder {
		@content;
	}
}

@mixin line-height($target-size, $parent-size: 18) {
	// calculate line-height
	line-height: $target-size / $parent-size;
}

@mixin column-classes($gutter-width, $max-columns, $class-name) {
	@for $cols from 1 through $max-columns {
		$colWidth: (1 - $gutter-width * ($cols - 1)) / $cols;
		@for $span from 1 through $cols {
			&.-#{unquote($class-name)}-col-#{$cols}-#{$span} {
				width: ($colWidth * $span + $gutter-width * ($span - 1)) * 100%;
			}
		}
	}
}

@mixin mediaquery($breakpoint, $property: max-width) {
	@if $breakpoint == desktop {
		$breakpoint: $breakpoint-desktop;
	}
	@else if $breakpoint == tablet {
		$breakpoint: $breakpoint-tablet;
	}
	@else if $breakpoint == mobile {
		$breakpoint: $breakpoint-mobile;
	}
	@else if $breakpoint == mobile-portrait {
		$breakpoint: $breakpoint-mobile-portrait;
	}
	@media screen and (unquote($property): $breakpoint) {
		@content;
	}
}

@function col($columns, $container-columns) {
	@return $columns / $container-columns * 100%;
}

@function em($target-size, $parent-size: 18) {
	// remove units from values
	@if unit($target-size) == "px" {
		$target-size: $target-size / 1px;
	}
	@if unit($target-size) == "em" {
		$target-size: $target-size / 1em;
	}
	@if unit($target-size) == "%" {
		$target-size: $target-size / 1%;
	}
	@if unit($parent-size) == "px" {
		$parent-size: $parent-size / 1px;
	}
	@if unit($parent-size) == "em" {
		$parent-size: $parent-size / 1em;
	}
	@if unit($parent-size) == "%" {
		$parent-size: $parent-size / 1%;
	}
	// calculate em
	@return $target-size / $parent-size * 1em;
}

// ===========================================
// Compass backwards compatibility
// ========================================

@mixin font-face($name, $font-files, $eot: false, $weight: false, $style: false) {
	@font-face {
		font-family: quote($name);
		src: $font-files;
		@if $weight {
			font-weight: $weight;
		}
		@if $style {
			font-style: $style;
		}
	}
}

@function font-files($url1, $format1, $url2, $format2, $url3, $format3) {
	@return font-url($url1) format(quote($format1)), font-url($url2) format(quote($format2)), font-url($url3) format(quote($format3));
}

@function font-url($url) {
	@return url("../fonts/#{unquote($url)}");
}

@function linear-gradient($angle, $param...) {
	@if $angle == top {
		$angle: to bottom;
	}
	@else if $angle == right {
		$angle: to left;
	}
	@else if $angle == bottom {
		$angle: to top;
	}
	@else if $angle == left {
		$angle: to right;
	}
	@return #{unquote("linear-gradient(")}$angle, $param#{unquote(")")};
}

@mixin box-sizing($param...) {
	box-sizing: $param;
}

@mixin text-shadow($param...) {
	text-shadow: $param;
}

@mixin background($param...) {
	background: $param;
}

@mixin background-image($param...) {
	background-image: $param;
}

@mixin appearance($param...) {
	-webkit-appearance: $param;
	-moz-appearance: $param;
	appearance: $param;
}

@mixin transition($param...) {
	transition: $param;
}

@mixin transition-duration($param...) {
	transition-duration: $param;
}

@mixin transition-property($param...) {
	transition-property: $param;
}

@mixin transition-delay($param...) {
	transition-delay: $param;
}

@mixin perspective($param...) {
	perspective: $param;
}

@mixin backface-visibility($param...) {
	backface-visibility: $param;
}

@mixin transform($param...) {
	transform: $param;
}

@mixin filter($param...) {
	filter: $param;
}

@mixin box-shadow($param...) {
	box-shadow: $param;
}

@mixin border-radius($param...) {
	@if length($param) < 1 {
		$param: 5px;
	}
	border-radius: $param;
}

@mixin column-count($param...) {
	column-count: $param;
}

@mixin column-gap($param...) {
	column-gap: $param;
}

@mixin transform-origin($x: null, $y: null, $z: null) {
	transform-origin: $x $y $z;
}

@mixin background-clip($param...) {
	background-clip: $param;
}

@mixin opacity($param...) {
	opacity: $param;
}

@mixin background-origin($param...) {
	background-origin: $param;
}

@mixin animation($param...) {
	animation: $param;
}

@mixin keyframes($param...) {
	@keyframes #{unquote($param)} {
		@content;
	}
}