@mixin mb2_collabsible_item_icon()
{
    $icon_size: 22px;

    &:before {
        position: absolute;
        display: block !important;
        width: $icon_size;
        height: $icon_size;
        right: .45rem;
        top: 50%;
        margin-top: ($icon_size/2) * -1;
        content: '\002d';
        text-align: center;
		text-indent: -1px;
        line-height: $icon_size - 2 !important;
        color: inherit;
        @include mb2_border_radius(50%);
        @include mb2_transition1(all, .15s);
    }

}


@mixin mb2_collabsible_item_icon_collapsed()
{
    $icon_size: 22px;

    &:before {
        content: '\0002b';
        color: rgba(0,0,0,.35);
    }

}


@mixin mb2_collabsible_item()
{
    margin-left: 0;
    border: 0;
    margin-bottom: .8rem;

    legend,
    .categoryname,
    [data-toggle="collapse"] {

        margin: 0 !important;
        font-size: inherit;
        position: relative;
        font-weight: $fwheadings2;
        padding: 10px 15px !important;
        background-color: $color_gray3;
        line-height: inherit;
        @include mb2_transition1(all, .15s);
		@include mb2_border_radius(.15rem);
		border: 0;
		border-left: solid 2px $accent1;

        > a {
            color: inherit;
        }

        &:hover {
            background-color: $color_gray3 !important;
        }
    }

    /* Style for accordion item */

    [data-toggle="collapse"] {
        display: block;
        width: 100%;
        text-align: inherit;
        color: inherit;
        font-size: $fsgeneral;

        @include mb2_collabsible_item_icon();

        &[aria-expanded="false"] {
            @include mb2_collabsible_item_icon_collapsed();
            background-color: lighten($color_gray3,2.8%);
        }
    }


    /* Style for Moodle settings collapsible item */

    legend {

        &.sr-only {
            padding: 0 !important;
            border: 0;
            background-color: transparent !important;
        }

        > a {

            &.fheader {
                padding: 0 !important;
                margin-left: 0;
                display: block;
                position: relative;
                background-image: none !important;
                @include mb2_collabsible_item_icon();

                &:before {
                    right: 0;
                    text-indent: 1px;
                    line-height: 22px !important;
                }
            }

            &.btn {
                position: absolute;
                right: 3rem;
                top: .6rem;
            }
        }


    }

    &.collapsed {
        legend {
            > a {
                &.fheader {
                    @include mb2_collabsible_item_icon_collapsed();
                }
            }

            background-color: lighten($color_gray3,2.8%);

			&:hover:before {
				background-color: rgba(0,0,0,.12);
			}
        }
    }


    /* Style for course categories tree */

    .categoryname {
        padding-right: 2.45rem !important;
        background-image: none !important;
        @include mb2_collabsible_item_icon();

        .categoryname {
            margin-top: .8rem !important;
        }

    }

    &.collapsed {
        > div > .categoryname {
            @include mb2_collabsible_item_icon_collapsed();
            background-color: lighten($color_gray3,2.8%);


			&:hover:before {
				background-color: rgba(0,0,0,.12);
			}
        }
    }

    /* Style for collapsible content container */

    .fcontainer {
        padding: 1.25rem 1rem;
    }

}