$menu_color: #F7F7FF;
$link_color: hsl(213, 100%, 50%);
$link_hover_color: lighten($link_color, 25%);
$link_dark_color: darken($link_color, 25%);
$highlight_color: lighten(complement($link_color), 35%);
$h1_size: 2em;
$h2_size: 1.5em;
$h3_size: 1.16667em;
$h1_padding: 1.25em 0;
$h2_padding: 1.45833em 0;
$h3_padding: 1.51785em 0;
$baseline: 1em;

@mixin border-radius($radius) {
  -moz-border-radius: $radius;
  -webkit-border-radius: $radius;
  -ms-border-radius: $radius;
  -o-border-radius: $radius;
  border-radius: $radius;
}

@mixin box-shadow($x, $y, $blur, $color) {
  -moz-box-shadow: $x $y $blur $color;
  -webkit-box-shadow: $x $y $blur $color;
  -ms-box-shadow: $x $y $blur $color;
  -o-box-shadow: $x $y $blur $color;
  box-shadow: $x $y $blur $color;
}

@mixin text-shadow($x, $y, $blur, $color) {
  -moz-text-shadow: $x $y $blur $color;
  -webkit-text-shadow: $x $y $blur $color;
  -ms-text-shadow: $x $y $blur $color;
  -o-text-shadow: $x $y $blur $color;
  text-shadow: $x $y $blur $color;
}

@mixin transparency($value) {
  opacity: $value;
  -ms-filter: unqoute("progid:DXImageTransform.Microsoft.Alpha(Opacity=#{$value * 100})");
  filter: unquote("alpha(opacity=#{$value * 100})");
  zoom: 1;
}

@mixin inline-block {
  display: -moz-inline-box;
  -moz-box-orient: vertical;
  display: inline-block;
  vertical-align: baseline;
  zoom: 1;
  *display: inline;
  *vertical-align: auto;
}

@mixin vertical-gradient ($startColor: #555, $endColor: #333) {
  background-color: $endColor;
  background-repeat: repeat-x;
  background-image: -moz-linear-gradient(top, $startColor, $endColor); // FF 3.6+
  background-image: -ms-linear-gradient(top, $startColor, $endColor); // IE10
  background-image: -webkit-gradient(linear, left top, left bottom, color-stop(0%, $startColor), color-stop(100%, $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(top, $startColor, $endColor); // The standard
  filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#{$startColor}', endColorstr='#{$endColor}', GradientType=0); // IE9 and down
}

@mixin gradientBar($primaryColor, $secondaryColor) {
  @include vertical-gradient($primaryColor, $secondaryColor);
  text-shadow: 0 -1px 0 rgba(0,0,0,0.25);
  border-color: $secondaryColor $secondaryColor darken($secondaryColor, 15%);
  border-color: rgba(0,0,0,0.1) rgba(0,0,0,0.1) opacify(rgba(0,0,0,0.1), 0.15);
}