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

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

$sidebar-z-index: 2000 !default;
$sidebar-transition: 500ms !default;

$tab-size: 40px !default;
$tab-font-size: 12pt !default;
$tab-bg: null !default;
$tab-transition: 80ms !default;

$content-bg: rgba(255, 255, 255, 0.95) !default;
$content-padding: 10px 20px !default;

$move-map-in-xs: true !default;

.sidebar {
    position: absolute;

    left: 0;
    top: 0;
    bottom: 0;
    width: $width-xs;

    overflow: hidden;

    z-index: $sidebar-z-index;

    &.collapsed {
        width: $tab-size;
    }

    @media(min-width:$threshold-sm) {
        left: $sidebar-margins;
        top: $sidebar-margins;
        bottom: $sidebar-margins;

        transition: width $sidebar-transition;
    }

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

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

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

.sidebar-tabs {
    position: absolute;

    top: 0;
    bottom: 0;

    width: $tab-size;
    height: 100%;

    margin: 0;
    padding: 0;

    background-color: $tabs-bg;

    & > li {
        width: 100%;
        height: $tab-size;

        color: $tab-fg;
        @if $tab-bg { background: $tab-bg; }

        font-size: $tab-font-size;

        overflow: hidden;

        transition: all $tab-transition;

        &:hover {
            color: $tab-hover-fg;
            background-color: $tab-hover-bg;
        }

        &.active {
            color: $tab-active-fg;
            background-color: $tab-active-bg;
        }

        & > a {
            display: block;

            width: 100%;
            height: 100%;

            line-height: $tab-size;

            color: inherit;
            text-decoration: none;
            text-align: center;
        }
    }
}

.sidebar-content {
    position: absolute;

    left: $tab-size;
    right: 0;

    top: 0;
    bottom: 0;

    background-color: $content-bg;

    overflow-x: hidden;
    overflow-y: auto;
}

.sidebar-pane {
    display: none;

    right: 0;
    box-sizing: border-box;

    padding: $content-padding;

    &.active {
        display: block;
    }

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

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

    @media(min-width:$threshold-lg) {
        width: $width-lg - $tab-size;
    }
}

@if $move-map-in-xs {
    .sidebar-map {
        margin-left: $tab-size;

        @media(min-width:$threshold-sm) {
            margin-left: 0;
        }
    }
}