// breakpoints.scss v1.0 | @ajlkn | MIT licensed */

// Vars.

/// Breakpoints. /// @var {list} $breakpoints: null;

// Mixins.

/// Sets breakpoints. /// @param {map} $x Breakpoints. @mixin breakpoints($x: ()) {

$breakpoints: $x !global;

}

/// Wraps @content in a @media block targeting a specific orientation. /// @param {string} $orientation Orientation. @mixin orientation($orientation) {

@media screen and (orientation: #{$orientation}) {
    @content;
}

}

/// Wraps @content in a @media block using a given query. /// @param {string} $query Query. @mixin breakpoint($query: null) {

$breakpoint: null;
$op: null;
$media: null;

// Determine operator, breakpoint.

    // Greater than or equal.
        @if (str-slice($query, 0, 2) == '>=') {

            $op: 'gte';
            $breakpoint: str-slice($query, 3);

        }

    // Less than or equal.
        @elseif (str-slice($query, 0, 2) == '<=') {

            $op: 'lte';
            $breakpoint: str-slice($query, 3);

        }

    // Greater than.
        @elseif (str-slice($query, 0, 1) == '>') {

            $op: 'gt';
            $breakpoint: str-slice($query, 2);

        }

    // Less than.
        @elseif (str-slice($query, 0, 1) == '<') {

            $op: 'lt';
            $breakpoint: str-slice($query, 2);

        }

    // Not.
        @elseif (str-slice($query, 0, 1) == '!') {

            $op: 'not';
            $breakpoint: str-slice($query, 2);

        }

    // Equal.
        @else {

            $op: 'eq';
            $breakpoint: $query;

        }

// Build media.
    @if ($breakpoint and map-has-key($breakpoints, $breakpoint)) {

        $a: map-get($breakpoints, $breakpoint);

        // Range.
            @if (type-of($a) == 'list') {

                $x: nth($a, 1);
                $y: nth($a, 2);

                // Max only.
                    @if ($x == null) {

                        // Greater than or equal (>= 0 / anything)
                            @if ($op == 'gte') {
                                $media: 'screen';
                            }

                        // Less than or equal (<= y)
                            @elseif ($op == 'lte') {
                                $media: 'screen and (max-width: ' + $y + ')';
                            }

                        // Greater than (> y)
                            @elseif ($op == 'gt') {
                                $media: 'screen and (min-width: ' + ($y + 1) + ')';
                            }

                        // Less than (< 0 / invalid)
                            @elseif ($op == 'lt') {
                                $media: 'screen and (max-width: -1px)';
                            }

                        // Not (> y)
                            @elseif ($op == 'not') {
                                $media: 'screen and (min-width: ' + ($y + 1) + ')';
                            }

                        // Equal (<= y)
                            @else {
                                $media: 'screen and (max-width: ' + $y + ')';
                            }

                    }

                // Min only.
                    @else if ($y == null) {

                        // Greater than or equal (>= x)
                            @if ($op == 'gte') {
                                $media: 'screen and (min-width: ' + $x + ')';
                            }

                        // Less than or equal (<= inf / anything)
                            @elseif ($op == 'lte') {
                                $media: 'screen';
                            }

                        // Greater than (> inf / invalid)
                            @elseif ($op == 'gt') {
                                $media: 'screen and (max-width: -1px)';
                            }

                        // Less than (< x)
                            @elseif ($op == 'lt') {
                                $media: 'screen and (max-width: ' + ($x - 1) + ')';
                            }

                        // Not (< x)
                            @elseif ($op == 'not') {
                                $media: 'screen and (max-width: ' + ($x - 1) + ')';
                            }

                        // Equal (>= x)
                            @else {
                                $media: 'screen and (min-width: ' + $x + ')';
                            }

                    }

                // Min and max.
                    @else {

                        // Greater than or equal (>= x)
                            @if ($op == 'gte') {
                                $media: 'screen and (min-width: ' + $x + ')';
                            }

                        // Less than or equal (<= y)
                            @elseif ($op == 'lte') {
                                $media: 'screen and (max-width: ' + $y + ')';
                            }

                        // Greater than (> y)
                            @elseif ($op == 'gt') {
                                $media: 'screen and (min-width: ' + ($y + 1) + ')';
                            }

                        // Less than (< x)
                            @elseif ($op == 'lt') {
                                $media: 'screen and (max-width: ' + ($x - 1) + ')';
                            }

                        // Not (< x and > y)
                            @elseif ($op == 'not') {
                                $media: 'screen and (max-width: ' + ($x - 1) + '), screen and (min-width: ' + ($y + 1) + ')';
                            }

                        // Equal (>= x and <= y)
                            @else {
                                $media: 'screen and (min-width: ' + $x + ') and (max-width: ' + $y + ')';
                            }

                    }

            }

        // String.
            @else {

                // Missing a media type? Prefix with "screen".
                    @if (str-slice($a, 0, 1) == '(') {
                        $media: 'screen and ' + $a;
                    }

                // Otherwise, use as-is.
                    @else {
                        $media: $a;
                    }

            }

    }

// Output.
    @media #{$media} {
        @content;
    }

}