/* functions
   ========================================================================== */

// parse int
@function parse-int($number) {
  @if type-of($number) == "number" {
    @return $number / ($number * 0 + 1);
  }

  @return $number;
}

// units to rem
@function rem($value) {
  @if type-of($value) == "number" {
    $number: parse-int($value);
    $unit: unit($value);

    @if $number == 0 or $unit == "rem" {
      @return $value;
    }

    @return $number / 16 * 1rem;
  }

  @return $value;
}