// ==========================================
// == Luna Framework
// == AUTHOR: CLAUDE MYBURGH
// == URL: http://designbycode.co.za
// ==========================================

@function longshadow($color_a, $color_b ,$stepnum, $opacity: 1)

    $gradient_steps: null

    @for $i from 1 through $stepnum

        $weight: ( ( $i - 1 ) / $stepnum ) * 100

        $colour_mix: mix($color_b, rgba($color_a, $opacity), $weight)

        $seperator: null

        @if($i != $stepnum)
            $seperator: #{','}

        $gradient_steps: append( #{$gradient_steps}, #{$i}px #{$i}px $colour_mix $seperator )

    @return $gradient_steps