// Utility mixins (methods) for SASS stylesheets.
// origin: RM

=icon_style
  padding-left: 21px
  background:
    color: transparent
    repeat: no-repeat
    position: left center

=icon($image_url)
  +icon_style
  background-image: url($image_url)

=opacity($opacity)
  filter: "alpha(opacity=#{$opacity * 100})"
  -moz-opacity: $opacity
  -khtml-opacity: $opacity
  opacity: $opacity

=round_corners($radius)
  -moz-border-radius: $radius
  -webkit-border-radius: $radius
  border-radius: $radius

=round_top_corners($radius)
  +round_top_left_corner($radius)
  +round_top_right_corner($radius)

=round_top_left_corner($radius)
  -moz-border-radius-topleft: $radius
  -webkit-border-top-left-radius: $radius
  border-top-left-radius: $radius

=round_top_right_corner($radius)
  -moz-border-radius-topright: $radius
  -webkit-border-top-right-radius: $radius
  border-top-right-radius: $radius

=round_bottom_corners($radius)
  +round_bottom_left_corner($radius)
  +round_bottom_right_corner($radius)

=round_bottom_left_corner($radius)
  -moz-border-radius-bottomleft: $radius
  -webkit-border-bottom-left-radius: $radius
  border-bottom-left-radius: $radius

=round_bottom_right_corner($radius)
  -moz-border-radius-bottomright: $radius
  -webkit-border-bottom-right-radius: $radius
  border-bottom-right-radius: $radius

=box_shadow($options)
  -moz-box-shadow: $options
  -webkit-box-shadow: $options
  box-shadow: $options

=hide_last_margin
  >*:last-child
    margin-bottom: 0 !important
    >*:last-child
      margin-bottom: 0 !important

=gradient($first, $second)
  background: $first * 0.5 + $second * 0.5
  filter: progid:DXImageTransform.Microsoft.Gradient(GradientType=0, startColorstr='#{$first}', endColorstr='#{$second}')
  -ms-filter: "progid:DXImageTransform.Microsoft.gradient(startColorstr='#{$first}', endColorstr='#{$second}')"
  background: -webkit-gradient(linear, left top, left bottom, from($first), to($second))
  background: -moz-linear-gradient(top, $first, $second)

=zero
  height: 0
  line-height: 0
  font-size: 0

=height($height)
  height: $height
  line-height: floor($height / 2) * 2