/* mixins */
@function em($px, $base: $body-font-size) {
	@return ($px / $base) * 1em;
}


/* Paragraphes et blocs de texte */
@mixin text-block() {
	margin-top:    0;
	margin-bottom: $typo-margin-vertical;
}

@mixin small() {
	font-size: 1em*$small-font-zize;
}

/// Font Face
/// https://gist.github.com/jonathantneal/d0460e5c2d5d7f9bc5e6#file-_mixins-scss
/// simplification pour uniquement woff2 et woff
@mixin font-face($name, $path, $weight: null, $style: null, $exts: woff2 woff) {
	$src: null;
	@each $ext in $exts {
		$src: append($src, url(quote("../webfonts/" + $path + "." + $ext)) format(quote($ext)), comma);
	}
	@font-face {
		font-family: quote($name);
		font-style: $style;
		font-weight: $weight;
		src: $src;
	}
}

/* flex -> galactic */
@mixin flex() {
	display: -webkit-box; /* OLD - iOS 6-, Safari 3.1-6 */
	display: -ms-flexbox; /* TWEENER - IE 10 */
	display: -webkit-flex; /* NEW - Chrome */
	display: flex; /* NEW, Spec - Opera 12.1, Firefox 20+ */
}


/* mixins souvent utiles
 * https://css-tricks.com/snippets/css/useful-css3-less-mixins/
 * + adaptations
 */
@mixin text-shadow ($string: 0 1px 3px rgba(0, 0, 0, 0.25)) {
	text-shadow: $string;
}
@mixin box-shadow ($shadows) {
	-moz-box-shadow: $shadows;
	-webkit-box-shadow: $shadows;
	box-shadow: $shadows;
}
@mixin box-shadow2 ($shadows,$shadows2) {
	-moz-box-shadow: $shadows,$shadows2;
	-webkit-box-shadow: $shadows,$shadows2;
	box-shadow: $shadows,$shadows2;
}
@mixin drop-shadow ($x: 0, $y: 1px, $blur: 2px, $spread: 0, $alpha: 0.25) {
	-webkit-box-shadow:	$x $y $blur $spread rgba(0, 0, 0, $alpha);
	-moz-box-shadow:	$x $y $blur $spread rgba(0, 0, 0, $alpha);
	box-shadow:		$x $y $blur $spread rgba(0, 0, 0, $alpha);
}
@mixin inner-shadow ($x: 0, $y: 1px, $blur: 2px, $spread: 0, $alpha: 0.25) {
	-webkit-box-shadow: inset $x $y $blur $spread rgba(0, 0, 0, $alpha);
	-moz-box-shadow:    inset $x $y $blur $spread rgba(0, 0, 0, $alpha);
	box-shadow:         inset $x $y $blur $spread rgba(0, 0, 0, $alpha);
}

@mixin border-radius ($radius: 5px) {
	-webkit-border-radius: $radius;
	-moz-border-radius:    $radius;
	border-radius:         $radius;

	-moz-background-clip:    padding;
	-webkit-background-clip: padding-box;
	background-clip:         padding-box;
}
@mixin border-radiuses ($topright: 0, $bottomright: 0, $bottomleft: 0, $topleft: 0) {
	-webkit-border-top-right-radius:    $topright;
	-webkit-border-bottom-right-radius: $bottomright;
	-webkit-border-bottom-left-radius:  $bottomleft;
	-webkit-border-top-left-radius:     $topleft;

	-moz-border-radius-topright:        $topright;
	-moz-border-radius-bottomright:     $bottomright;
	-moz-border-radius-bottomleft:      $bottomleft;
	-moz-border-radius-topleft:         $topleft;

	border-top-right-radius:            $topright;
	border-bottom-right-radius:         $bottomright;
	border-bottom-left-radius:          $bottomleft;
	border-top-left-radius:             $topleft;

	-moz-background-clip:    padding; 
	-webkit-background-clip: padding-box; 
	background-clip:         padding-box; 
}

@mixin opacity ($opacity: 0.5) {
	-webkit-opacity: 	$opacity;
	-moz-opacity: 		$opacity;
	opacity: 		$opacity;
}

@mixin column ($nb: 2) {
	-moz-column-count: $nb;
	-webkit-column-count: $nb;
	column-count: $nb;
}

@mixin gradient ($startColor: #eee, $endColor: white) {
	background-color: $startColor;
	background: -webkit-gradient(linear, left top, left bottom, from($startColor), to($endColor));
	background: -webkit-linear-gradient(top, $startColor, $endColor);
	background: -moz-linear-gradient(top, $startColor, $endColor);
	background: -ms-linear-gradient(top, $startColor, $endColor);
	background: -o-linear-gradient(top, $startColor, $endColor);
}
@mixin horizontal-gradient ($startColor: #eee, $endColor: white) {
	background-image: -webkit-gradient(linear, left top, right top, from($startColor), to($endColor));
	background-image: -webkit-linear-gradient(left, $startColor, $endColor);
	background-image: -moz-linear-gradient(left, $startColor, $endColor);
	background-image: -ms-linear-gradient(left, $startColor, $endColor);
	background-image: -o-linear-gradient(left, $startColor, $endColor);
}
@mixin gradient-4 ($couleur1: transparent,$couleur2: $white 30%,$couleur3: $white 70%,$couleur4: transparent) {
	background: -webkit-linear-gradient($couleur1,$couleur2,$couleur3,$couleur4);
	background: -moz-linear-gradient($couleur1,$couleur2,$couleur3,$couleur4);
	background: -ms-linear-gradient($couleur1,$couleur2,$couleur3,$couleur4);
	background: -o-linear-gradient($couleur1,$couleur2,$couleur3,$couleur4);
}

@mixin animation ($name, $duration: 300ms, $delay: 0, $ease: ease) {
	-webkit-animation: $name $duration $delay $ease;
	-moz-animation:    $name $duration $delay $ease;
	-ms-animation:     $name $duration $delay $ease;
}

@mixin transition ($transition) {
	-webkit-transition: $transition;  
	-moz-transition:    $transition;
	-ms-transition:     $transition; 
	-o-transition:      $transition;  
}
@mixin transform($string){
	-webkit-transform: $string;
	-moz-transform: 	 $string;
	-ms-transform: 		 $string;
	-o-transform: 		 $string;
}
@mixin scale ($factor) {
	-webkit-transform: scale($factor);
	-moz-transform: 	 scale($factor);
	-ms-transform: 		 scale($factor);
	-o-transform: 		 scale($factor);
}
@mixin rotate ($deg) {
	-webkit-transform: rotate($deg);
	-moz-transform: 	 rotate($deg);
	-ms-transform: 		 rotate($deg);
	-o-transform: 		 rotate($deg);
}
@mixin skew ($deg, $deg2) {
	-webkit-transform:       skew($deg, $deg2);
	-moz-transform: 	 skew($deg, $deg2);
	-ms-transform: 		 skew($deg, $deg2);
	-o-transform: 		 skew($deg, $deg2);
}
@mixin translate ($x, $y:0) {
	-webkit-transform:       translate($x, $y);
	-moz-transform: 	 translate($x, $y);
	-ms-transform: 		 translate($x, $y);
	-o-transform: 		 translate($x, $y);
}
@mixin translate3d ($x, $y: 0, $z: 0) {
	-webkit-transform:       translate3d($x, $y, $z);
	-moz-transform: 	 translate3d($x, $y, $z);
	-ms-transform: 		 translate3d($x, $y, $z);
	-o-transform: 		 translate3d($x, $y, $z);
}
@mixin perspective ($value: 1000) {
	-webkit-perspective: 	$value;
	-moz-perspective: 	$value;
	-ms-perspective: 	$value;
	perspective: 		$value;
}
@mixin transform-origin ($x:center, $y:center) {
	-webkit-transform-origin: $x $y;
	-moz-transform-origin:    $x $y;
	-ms-transform-origin:     $x $y;
	-o-transform-origin:      $x $y;
}



@mixin media($query) {
	@media screen and ($query) {
		@content;
	}
}
@function breakpoint($query, $dimension) {
	@return $query+": "+$dimension;
}