amis/scss/layout/_aside.scss

.#{$ns}AsideNav {
    @include clearfix();

    &-label {
        color: $Layout-asideLabel-color;
        margin-top: $gap-base;
        margin-bottom: $gap-sm;
        font-size: $fontSizeXs;
        padding-left: $gap-base;
        padding-right: $gap-base;
    }

    &-list {
        list-style: none;
        padding: 0;
        margin: 0;
    }

    &-itemArrow {
        float: right;
        display: block;
        width: px2rem(20px);
        text-align: center;
        line-height: px2rem(17px);

        &::before {
            content: $Layout-asideLink-arrowIcon;
            display: inline-block;
            font-family: $Layout-asideLink-arrowVendor;
            transform-origin: center;
            color: $Layout-asideLink-arrowColor;
            font-size: $Layout-asideLink-arrowFontSize;
        }

        .#{$ns}AsideNav-item.is-open > a > &::before {
            transform: rotate(90deg);
            color: $Layout-asideLink-onActive-arrowColor;
        }
    }

    &-itemBadge {
        padding: px2rem(2px) px2rem(5px);
        margin-top: px2rem(2px);
        font-size: $fontSizeXs;
        text-shadow: 0 px2rem(1px) 0 rgba(0, 0, 0, 0.2);
        float: right;
        min-width: px2rem(1px);
        line-height: 1;
        font-weight: $fontWeightBold;
        text-align: center;
        white-space: nowrap;
        vertical-align: baseline;
        border-radius: px2rem(10px);
    }

    &-itemIcon {
        margin: (
                $Layout-nav-height - $lineHeightBase *
                    $Layout-asideLink-fontSize
            )/-2 px2rem(-10px);
        line-height: $Layout-nav-height;
        width: $Layout-nav-height;
        vertical-align: middle;
        float: left;
        margin-right: 0;
        text-align: center;
        position: relative;
        overflow: hidden;
        color: $Layout-asideLink-iconColor;
        font-size: $Layout-asideLink-onHover-iconSize;

        &:before {
            position: relative;
            z-index: 2;
        }
    }

    &-subList {
        margin: 0;
        padding: 0;
        opacity: 0;
        height: 0;
        overflow: hidden;
        margin-left: px2rem(-20px);
        transition: all 0.2s ease-in-out 0s;
        background-color: $Layout-aside-onAcitve-bg;

        .is-open > &,
        .#{$ns}Layout--folded .#{$ns}AsideNav-item:hover > &,
        .#{$ns}Layout--folded .#{$ns}AsideNav-item:focus > &,
        .#{$ns}Layout--folded .#{$ns}AsideNav-item:active > & {
            opacity: 1;
            margin-left: 0;
            height: auto !important;
            overflow: visible;
        }

        .#{$ns}Layout--folded .#{$ns}AsideNav-item.is-open > & {
            overflow: hidden;
        }
    }

    &-item {
        position: relative;
        display: block;

        a {
            font-weight: normal;
            cursor: pointer;
            text-transform: none;
            display: block;
            font-size: $Layout-asideLink-fontSize;
            padding: (
                    $Layout-nav-height - $lineHeightBase *
                        $Layout-asideLink-fontSize
                )/2 px2rem(15px);
            position: relative;
            transition: background-color 0.2s ease-in-out 0s;
            color: $Layout-asideLink-color;
            text-decoration: none;
            user-select: none;

            &:hover {
                color: $Layout-asideLink-onHover-color;
                text-decoration: none;
                background-color: $Layout-aside-onHover-bg;

                .#{$ns}AsideNav-itemIcon {
                    color: $Layout-asideLink-onHover-iconColor;
                }
            }
        }

        &.is-active {
            > a {
                background-color: $Layout-aside-onAcitve-bg;
                color: $Layout-asideLink-onActive-color;

                &:hover {
                    background-color: $Layout-aside-onHover-bg;
                }
            }
        }

        .#{$ns}AsideNav-item {
            a {
                padding-left: $Layout-nav-height + px2rem(5px);
            }

            .#{$ns}AsideNav-item a {
                padding-left: $Layout-nav-height + px2rem(35px);
            }

            .#{$ns}AsideNav-item .#{$ns}AsideNav-item a {
                padding-left: $Layout-nav-height + px2rem(65px);
            }

            .#{$ns}AsideNav-subList {
                display: none;
            }

            &.is-open .#{$ns}AsideNav-subList {
                display: block;
            }
        }
    }

    &-subHeader {
        display: none;

        a {
            cursor: default;
            background: transparent;
            color: darken($Layout-aside-color, 10%);
            padding: (
                    $Layout-nav--folded-height - $lineHeightBase *
                        $Layout-asideLink-fontSize
                )/2 px2rem(20px);

            &:hover {
                color: darken($Layout-aside-color, 10%);
                background: transparent;
            }
        }
    }

    &-tooltip {
        pointer-events: none;
        left: 0;
        top: 50%;
        transform: translateY(-50%);
        position: absolute;
        font-size: $Tooltip--attr-fontSize;
        line-height: $Tooltip--attr-lineHeigt;
        text-align: left;
        white-space: nowrap;
        background: $Tooltip--attr-bg;
        border: $Tooltip--attr-borderWidth solid $Tooltip--attr-borderColor;
        border-radius: $Tooltip--attr-borderRadius;
        box-shadow: $Tooltip--attr-boxShadow;
        left: 100%;
        color: $Tooltip--attr-color;
        padding: $Tooltip--attr-paddingY $Tooltip--attr-paddingX;
        opacity: 0;
        transition: $Tooltip--attr-transition;
    }

    &-divider {
        width: auto;
        height: px2rem(1px);
        margin: $Layout-asideDivider-margin;
        overflow: hidden;
        font-size: 0;
        background-color: $Layout-asideDivider-bg;
    }
}

@include media-breakpoint-up(md) {
    .#{$ns}Layout--folded {
        .#{$ns}AsideNav-label {
            display: none;
        }

        .#{$ns}AsideNav-subHeader {
            display: block;
        }

        .#{$ns}AsideNav-item:hover > .#{$ns}AsideNav-tooltip {
            opacity: 1;
            z-index: $zindex-tooltip;
            margin: 0 0 0 $Tooltip--attr-gap;
            opacity: 1;
        }

        .#{$ns}AsideNav-list > .#{$ns}AsideNav-item > a {
            text-align: center;
            position: relative;
            padding: 0;
            text-align: center;
            height: $Layout-nav--folded-height;
            border: none;

            .#{$ns}AsideNav-itemArrow,
            .#{$ns}AsideNav-itemLabel {
                display: none;
            }

            .#{$ns}AsideNav-itemIcon {
                width: auto;
                float: none !important;
                display: block;
                font-size: px2rem(16px);
                margin: 0;
                line-height: $Layout-nav--folded-height;
                border: none !important;
            }

            .#{$ns}AsideNav-itemBadge {
                position: absolute;
                right: px2rem(12px);
                top: px2rem(8px);
                z-index: 3;
            }
        }

        .#{$ns}AsideNav-item .#{$ns}AsideNav-item a {
            padding-left: px2rem(20px) !important;
        }

        .#{$ns}AsideNav-subList {
            height: 0 !important;
            position: absolute;
            left: 100%;
            top: 0 !important;
            z-index: 1050;
            width: $Layout-aside-width;
            box-shadow: 0 px2rem(2px) px2rem(6px) rgba(0, 0, 0, 0.1);
        }

        &.#{$ns}Layout--sm .#{$ns}AsideNav-subList {
            width: $Layout-aside--sm-width;
        }

        &.#{$ns}Layout--md .#{$ns}AsideNav-subList {
            width: $Layout-aside--md-width;
        }

        &.#{$ns}Layout--lg .#{$ns}AsideNav-subList {
            width: $Layout-aside--lg-width;
        }
    }
}