$threshold-lg: 1200px;
$threshold-md: 992px;
$threshold-sm: 768px;

$width-lg: 460px;
$width-md: 390px;
$width-sm: 305px;
$width-xs: 100%;

$transition-duration: 0.5s;

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

@mixin box-sizing($box-sizing) {
    -webkit-box-sizing: $box-sizing;
    -moz-box-sizing: $box-sizing;
    box-sizing: $box-sizing;
}

@mixin widths($width) {
    width: $width;

    &.left.visible ~ .leaflet-left {
        left: $width;
    }

    &.right.visible ~ .leaflet-right {
        right: $width;
    }
}

.leaflet-sidebar {
    position: absolute;
    height: 100%;

    @include box-sizing(border-box);
    padding: 10px;

    z-index: 2000;

    &.left {
        left: -500px;
        transition: left $transition-duration, width $transition-duration;

        padding-right: 0;

        &.visible {
            left: 0;
        }
    }

    &.right {
        right: -500px;
        transition: right $transition-duration, width $transition-duration;

        padding-left: 0;

        &.visible {
            right: 0;
        }
    }

    & > .leaflet-control {
        height: 100%;
        width: 100%;

        overflow: auto;
        -webkit-overflow-scrolling: touch;

        @include box-sizing(border-box);
        padding: 8px 24px;

        font-size: 1.1em;

        background: white;
        box-shadow: 0 1px 7px rgba(0,0,0,0.65);
        @include border-radius(4px);

        .leaflet-touch & {
            box-shadow: none;
            border: 2px solid rgba(0,0,0,0.2);
            background-clip: padding-box;
        }
    }

    @media(max-width:$threshold-sm - 1px) {
        @include widths($width-xs);

        padding: 0;

        &.left {
            left: -$width-xs;

            &.visible {
                left: 0;
            }
        }

        &.right {
            right: -$width-xs;

            &.visible {
                right: 0;
            }
        }

        & > .leaflet-control {
            box-shadow: none;
            @include border-radius(0);

            .leaflet-touch & {
                border: 0;
            }
        }
    }

    @media(min-width:$threshold-sm) and (max-width:$threshold-md - 1px) {
        @include widths($width-sm);
    }

    @media(min-width:$threshold-md) and (max-width:$threshold-lg - 1px) {
        @include widths($width-md);
    }

    @media(min-width:$threshold-lg) {
        @include widths($width-lg);
    }

    .close {
        position: absolute;
        right: 20px;
        top: 20px;
        width: 31px;
        height: 31px;

        color: #333;
        font-size: 25pt;
        line-height: 1em;
        text-align: center;
        background: white;
        @include border-radius(16px);
        cursor: pointer;

        z-index: 8;
    }
}

.leaflet-left {
    transition: left $transition-duration;
}

.leaflet-right {
    transition: right $transition-duration;
}