/*****************************************************************************
 * Open MCT, Copyright (c) 2014-2020, United States Government
 * as represented by the Administrator of the National Aeronautics and Space
 * Administration. All rights reserved.
 *
 * Open MCT is licensed under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * http://www.apache.org/licenses/LICENSE-2.0.
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations
 * under the License.
 *
 * Open MCT includes source code licensed under additional open source
 * licenses. See the Open Source Licenses file (LICENSES.md) included with
 * this source code distribution or the Licensing information page available
 * at runtime from the About dialog for additional information.
 *****************************************************************************/
/*********************************************************************** CLOCKS AND TIMERS */
.c-clock,
.c-timer {
    display: flex;
    align-items: center;
    font-size: 1.25em;
    overflow: hidden;

    > * {
        flex: 0 0 auto;
        display: flex;
        align-items: center;
    }

    &__value {
        color: $colorBodyFgEm;
    }

    .c-frame & {
        // When in a Display or Flexible Layout
        @include abs();
        padding: $interiorMargin;
    }
}

.c-clock {
    > * + * { margin-left: $interiorMargin; }
}

.c-timer {
    $ctrlW: 22px;

    &__controls {
        font-size: 1rem !important;
        margin-right: 0;
        min-width: 0;
        overflow: hidden;
        transition: $transOut;
        width: 0;

        .c-icon-button:before { font-size: 1em; }
    }

    &__direction {
        font-size: 0.9rem !important;
        margin-right: $interiorMargin;
    }

    &__ng-controller {
        font-size: 0;
        width: 0;
    }

    &:hover {
        .c-timer__controls {
            transition: $transOut; // On purpose: want this to take a bit longer
            margin-right: $interiorMargin;
            width: $ctrlW * 2;
        }

        &.is-stopped .c-timer__controls { width: $ctrlW; }
    }

    &__direction,
    &__value {
        opacity: 0.5;
    }

    &.is-started {
        .c-timer {
            &__direction,
            &__value {
                opacity: 1;
            }
        }
    }
}

/*********************************************************************** SUMMARY WIDGETS */
/************************* WIDGET OBJECT */
@mixin cSummaryWidget() {
    box-shadow: $shdwBtns;
    border-radius: $basicCr;
    border-style: solid;
    border-width: 1px;
    cursor: default;
    display: inline-flex;
    align-items: center;
    justify-content: center;

    &[href] {
        cursor: pointer;
    }

    &__icon {
        // Hide the icon holder element. Selector below shows this once 'icon-*' is added.
        display: none;
        font-size: 0.9em;
    }

    &__label {
        @include ellipsize();
    }

    [class*='icon-'] {
        // When 'icon-*' is added, show this element and add margin
        display: block;
        margin-right: $interiorMarginSm;
    }

}

.c-summary-widget,
.c-sw {
    @include cSummaryWidget();
    padding: $interiorMarginLg $interiorMarginLg * 2;

    &--thumb {
        max-width: 30%;
        padding: $interiorMarginSm $interiorMargin;
    }
}

.widget-edit-holder {
    // Hide edit area when in browse mode
    display: none;
}

.widget-rule-header {
    display: flex;
    align-items: center;

    > * + * {
        margin-left: $interiorMargin;
    }
}

[class*='action-buttons-wrapper'] {
    white-space: nowrap;
    line-height: $btnStdH;
}

.widget-rules-wrapper,
.widget-rule-content,
.w-widget-test-data-content {
    transition: $transIn;
    min-height: 0;
    height: 0;
    opacity: 0;
    overflow: hidden;
    pointer-events: none;
}

.widget-rules-wrapper {
    flex: 1 1 auto !important;
}

.widget-rule-content.expanded {
    overflow: visible !important;
    min-height: 50px;
    height: auto;
    margin-top: $interiorMargin;
    opacity: 1;
    pointer-events: inherit;
}

.w-widget-test-data-content {
    .l-enable {
        padding: $interiorMargin 0;
    }

    .w-widget-test-data-items {
        max-height: 20vh;
        overflow-y: scroll !important;
        padding-right: $interiorMargin;
    }
}

.l-widget-thumb-wrapper,
.l-compact-form label {
    $ruleLabelW: 40%;
    $ruleLabelMaxW: 150px;
    display: flex;
    max-width: $ruleLabelMaxW;
    width: $ruleLabelW;
}

.js-summary-widget__message {
    display: none;
}

/**************\ EDITING A WIDGET */
.w-summary-widget {
    // Classes for editor layout while editing a widget
    // This selector is ugly and brittle, but needed to prevent interface from showing when widget is in a layout
    // being edited.
    @include abs();
    display: flex;
    flex-direction: column;

    > .l-summary-widget {
        // Main view of the summary widget
        // Give some airspace and center the widget in the area
        margin: 30px auto;
    }

    .widget-edit-holder {
        display: flex; // Overrides `display: none` during Browse mode
        flex: 1 1 auto;
        overflow: hidden;

        .flex-accordion-holder {
            // Needed because otherwise accordion elements "creep" when contents expand and contract
            display: block !important;
        }
        &.expanded-widget-test-data {
            .w-widget-test-data-content {
                min-height: 50px;
                height: auto;
                opacity: 1;
                pointer-events: inherit;
            }
            &:not(.expanded-widget-rules) {
                // Test data is expanded and rules are collapsed
                // Make text data take up all the vertical space
                .flex-accordion-holder { display: flex; }
            }
        }
        &.expanded-widget-rules {
            .widget-rules-wrapper {
                min-height: 50px;
                height: 100%; // Fix for Chrome 73 scrolling bug
                opacity: 1;
                pointer-events: inherit;
            }
        }
    }

    &.s-status-no-data {
        .widget-edit-holder {
            opacity: 0.3;
            pointer-events: none;
        }
        .js-summary-widget__message {
            display: flex;
        }
    }

    .l-compact-form {
        // Overrides on .l-compact-form
        ul {
            &:last-child { margin: 0; }

            li {
                &:not(.widget-rule-header) {
                    &:not(.connects-to-previous) {
                        border-top: 1px solid $colorFormLines;
                    }
                }
                &.connects-to-previous {
                    padding: $interiorMargin 0;
                }

                > label {
                    display: block; // Needed to align text to right
                    text-align: right;
                    width: 90px;
                    flex: 0 0 auto;
                }

                .controls {
                    display: flex;
                    flex-wrap: wrap;
                    align-items: center;
                    align-content: stretch;
                    > * + * { margin-left: $interiorMarginSm; }
                }
            }
        }

        &.s-widget-test-data-item {
            // Single line of ul li label span, etc.
            ul {
                li {
                    border: none !important;
                    > label {
                        display: inline-block;
                        width: auto;
                        text-align: left;
                    }
                }
            }
        }
    }

    .t-condition .controls {
        > * { margin-bottom: $interiorMargin; }
    }
}

.widget-edit-holder {
    font-size: 0.8rem;
}

.widget-rules-wrapper {
    // Wrapper area that holds n rules
    box-sizing: border-box;
    overflow-y: scroll;
    padding-right: $interiorMargin;
}

.l-widget-rule,
.l-widget-test-data-item {
    box-sizing: border-box;
    margin-bottom: $interiorMarginSm;
    padding: $interiorMargin $interiorMarginLg;
}

.rule-title {
    flex: 0 1 auto;
    color: pullForward($colorBodyFg, 50%);
}

.rule-description {
    flex: 1 1 auto;
    @include ellipsize();
    color: pushBack($colorBodyFg, 20%);
}

.s-widget-rule,
.s-widget-test-data-item {
    background-color: rgba($colorBodyFg, 0.1);
    border-radius: $basicCr;
}

.c-sw-edit {
    padding: $interiorMargin;

    &__ui {
        display: flex;
        flex-direction: column;

        &__header {
            border-top: 1px solid $colorInteriorBorder;
            display: flex;
            align-items: center;
            margin: $interiorMargin 0;
            padding: $interiorMargin 0;
            text-transform: uppercase;
            > * + * { margin-left: $interiorMarginSm; }
        }
    }
}

.c-sw-rule {
    &__grippy-wrapper {
        $d: 8px;
        flex: 0 0 auto;
        cursor: move;
        width: $d; height: $d;
        transform: translateY(-1px);
    }

    &__grippy {
        @include grippy($c: $colorItemTreeVC, $dir: 'y');
        @include abs();
    }
}

/******************************************************************* CHANNEL SELECTOR */
.channel-selector {
    .line {
        margin-bottom: $interiorMargin;
        min-height: $formInputH;
    }
    .treeview {
        $myBg: darken($colorBodyBg, 2%);
        @include reactive-input();
        min-height: 300px;
        max-height: 400px;
        overflow: auto;
        padding: $interiorMargin;
    }

    .btns-add-remove {
        margin-top: 150px;
        .s-button {
            display: block;
            margin-bottom: $interiorMargin;
            text-align: center;
        }
    }
}

/******************************************************************* AUTOFLOW TABULAR */
// NOT UNIT TESTED AS OF 3/12/19
.autoflow {
    $headerH: $formInputH;
    $colMargin: $interiorMargin;
    $colW: 225px;
    $valW: 70px;
    $valPad: 5px;
    $rowH: 15px;
    font-size: 0.75rem;

    &:hover {
        .l-autoflow-header .s-button.change-column-width {
            transition: $transIn;
            opacity: 1;
        }
    }

    .l-autoflow-header {
        bottom: auto;
        height: $headerH;
        line-height: $headerH;
        min-width: $colW;
        .t-last-update {
            overflow: hidden;
        }
        .s-button.change-column-width {
            transition: $transOut;
            opacity: 0;
        }
        .l-filter {
            display: block;
            margin-right: $interiorMargin;
            input.t-filter-input {
                width: 150px;
            }
        }
    }

    .l-autoflow-items {
        overflow-x: scroll;
        overflow-y: hidden;
        top: $headerH + $interiorMargin * 2;
        white-space: nowrap;
        .l-autoflow-col {
            box-sizing: border-box;
            border-left: 1px solid $colorInteriorBorder;
            display: inline-block;
            padding-left: $colMargin;
            padding-right: $colMargin;
            vertical-align: top;
            width: $colW;
            .l-autoflow-row {
                box-sizing: border-box;
                border-bottom: 1px solid rgba(#fff,0.05);
                display: block;
                height: $rowH;
                line-height: $rowH;
                margin-bottom: 1px; margin-top: 1px;
                position: relative;
                &:first-child {
                    border-top: none;
                }
                &:hover {
                    background: rgba(#fff, 0.1);
                }
                .l-autoflow-item.r {
                    color: lighten($colorBodyFg, 10%);
                }
                &.first-in-group {
                    border-top: 1px solid lighten($colorInteriorBorder, 20%);
                }
                .l-autoflow-item {
                    display: block;
                    &.l {
                        float: none;
                        overflow: hidden;
                        text-overflow: ellipsis;
                        white-space: nowrap;
                        width: auto;
                    }
                    &.r {
                        border-radius: $smallCr;
                        float: right;
                        margin-left: $interiorMargin;
                        padding-left: $valPad;
                        padding-right: $valPad;
                        text-align: right;
                    }
                }
            }

            &:first-child {
                border-left: none;
                padding-left: 0;
            }
        }
    }
}

.frame {
    &.child-frame.panel {
        .autoflow .l-autoflow-header .l-filter {
            display: none;
        }
    }
}

/******************************************************************* INDICATORS */
/* Indicators are generally only displayed in the ue-bottom-bar element of the main interface */

.h-indicator,
mct-indicators mct-include {
    display: inline; // Fallback for display: contents
    display: contents;
}

/************************************************* DATETIME UI */
@mixin complexFieldHolder($myW) {
    width: $myW + $interiorMargin;
    input[type="text"] {
        width: $myW;
    }
}

.complex.datetime {
    span {
        display: inline-block;
        margin-right: $interiorMargin;
    }
    .fields {
        margin-top: $interiorMarginSm 0;
        padding: $interiorMarginSm 0;
    }

    .date {
        @include complexFieldHolder(80px);
    }

    .time.md {
        @include complexFieldHolder(60px);
    }

    .time.sm {
        @include complexFieldHolder(40px);
    }
}

/************************************************* INFO BUBBLES */
.l-infobubble-wrapper {
    $arwSize: 5px;
    box-shadow: rgba(black, 0.4) 0 1px 5px;
    position: relative;
    z-index: 50;
    .l-infobubble {
        display: inline-block;
        min-width: $bubbleMinW;
        max-width: $bubbleMaxW;
        padding: 5px 10px;
        &:before {
            content:"";
            position: absolute;
            width: 0;
            height: 0;
        }
        table {
            width: 100%;
            tr {
                td {
                    padding: 2px 0;
                    vertical-align: top;
                    &.label {
                        padding-right: $interiorMargin * 2;
                        white-space: nowrap;
                    }
                    &.value {
                        //word-wrap: break-word; // Doesn't work in <td>?
                        word-break: break-all;
                    }
                    &.align-wrap {
                        white-space: normal;
                    }
                }
            }
        }
        .title {
            @include ellipsize();
            margin-bottom: $interiorMargin;
        }
    }

    &.arw-down {
        margin-bottom: $arwSize*2;
        .l-infobubble::before {
            left: 50%;
            top: 100%;
            margin-left: -1 * $arwSize;
            border-left: $arwSize solid transparent;
            border-right: $arwSize solid transparent;
            border-top: ($arwSize * 1.5) solid $colorInfoBubbleBg;
        }
    }
    .arw {
        z-index: 2;
    }
    &.arw-up .arw.arw-down,
    &.arw-down .arw.arw-up {
        display: none;
    }
}

body.desktop {
    .l-infobubble {
        &.arw-left {
            margin-left: $bubbleArwSize*2;
            &:before {
                @include triangle('left', $bubbleArwSize, 1.5, $colorInfoBubbleBg);
                right: 100%;
            }
        }

        &.arw-right {
            margin-right: $bubbleArwSize*2;
            &:before {
                @include triangle('right', $bubbleArwSize, 1.5, $colorInfoBubbleBg);
                left: 100%;
            }
        }

        &.arw-top {
            &:before {
                top: $bubbleArwSize * 2;
            }
        }

        &.arw-btm {
            &:before {
                bottom: $bubbleArwSize * 2;
            }
        }
    }
}

.l-thumbsbubble-wrapper {
    .arw-up {
        @include triangle('up', $bubbleArwSize, 1.5, $colorThumbsBubbleBg);
    }
    .arw-down {
        @include triangle('down', $bubbleArwSize, 1.5, $colorThumbsBubbleBg);
    }
}

.s-infobubble {
    $emFg: darken($colorInfoBubbleFg, 20%);
    border-radius: $basicCr;
    box-shadow: rgba(black, 0.4) 0 1px 5px;
    background: $colorInfoBubbleBg;
    color: $colorInfoBubbleFg;
    font-size: 0.8rem;
    .title {
        color: $emFg;
        font-weight: bold;
    }
    table {
        tr {
            td {
                border: none;
                border-top: 1px solid darken($colorInfoBubbleBg, 10%) !important;
                font-size: 0.9em;
            }

            &:first-child td {
                border-top: none !important;
            }
        }
    }
    &:first-child td {
        border-top: none;
    }

    .label {
        color: lighten($emFg, 30%);
    }

    .value {
        color: $emFg;
    }

}

.s-thumbsbubble {
    background: $colorThumbsBubbleBg;
    color: $colorThumbsBubbleFg;
}

/***************************************************************** SPLITTERS */
.splitter {
    display: block;
    position: absolute;
    z-index: 3;
    &:after {
        // The handle
        content:"";
        pointer-events: none;
        @include abs(0);
        background: $colorSplitterBg;
        display: block;
        z-index: 4;
    }
    &:active {
        &:after {
            background-color: $colorSplitterActive !important;
        }
    }

    @if $colorSplitterHover != 'none' {
        &:not(:active) {
            &:hover {
                &:after {
                    background-color: $colorSplitterHover !important;
                    transiiton: background-color, 150ms;
                }
            }
        }
    }
}

.split-layout {
    $inset: $splitterHandleHitMargin;
    &.horizontal {
        // Slides vertically up and down, splitting the element horizontally
        overflow: hidden; // Suppress overall scroll; each internal pane handles its own overflow
        .pane {
            left: 0;
            right: 0;
            &.top {
                bottom: auto;
            }
            &.bottom {
                top: auto;
            }
        }
        >.splitter {
            cursor: row-resize;
            left: 0;
            right: 0;
            height: $splitterHandleD;
            &:after {
                top: $inset; bottom: $inset;
            }
        }
    }

    &.vertical {
        // Slides horizontally left to right, splitting the element vertically
        .pane {
            top: 0;
            bottom: 0;
            &.left {
                right: auto;
            }
            &.right {
                left: auto;
            }
        }
        >.splitter {
            cursor: col-resize;
            top: 0;
            bottom: 0;
            width: $splitterHandleD;
            &:after {
                left: $inset; right: $inset;
                //width: $splitterHandleD;
            }
            &.flush-right {
                width: ceil($splitterHandleD / 2);
                &:after {
                    width: $splitterHandleD;
                    left: auto; right: 0;
                }
                &.edge-shdw {
                    background-image: linear-gradient(90deg, rgba(black, 0) 40%, rgba(black, 0.05) 70%, rgba(black, 0.2) 100%);
                }
            }
        }
    }
}

/******************************************************************* FLEX STYLES */
.l-flex-row,
.l-flex-col {
    display: flex;
    flex-wrap: nowrap;
    .flex-elem {
        min-height: 0; // Needed to allow element to shrink within parent
        position: relative;
        &:not(.grows) {
            flex: 0 0 auto;
            &.flex-can-shrink {
                flex: 0 1 auto;
            }
        }
        &.grows {
            flex: 1 1 auto;
        }
        &.contents-align-right {
            text-align: right;
        }
    }
    .flex-container {
        // Apply to wrapping elements, mct-includes, etc.
        display: flex;
        flex-wrap: nowrap;
        flex: 1 1 auto;
        min-height:0;
    }
}

.l-flex-row {
    flex-direction: row;
    &.flex-elem { flex: 1 1 auto; }
    > .flex-elem {
        min-width: 0;
        &.holder:not(:last-child) { margin-right: $interiorMargin; }
    }
    .flex-container { flex-direction: row; }
}

.l-flex-col {
    flex-direction: column;
    > .flex-elem {
        min-height: 0;
        &.holder:not(:last-child) { margin-bottom: $interiorMarginLg; }
    }
    &.l-flex-accordion .flex-accordion-holder {
        display: flex;
        flex-direction: column;
    }
    .flex-container { flex-direction: column; }
}

.flex-fixed {
    flex: 0 0 auto;
}

.flex-justify-end {
    justify-content: flex-end;
}

/******************************************************************* GRID STYLES */
.grid-two-column,
.grid-properties {
    display: grid;
    grid-row-gap: 0;
    grid-template-columns: 1fr 2fr;
}

.grid-span-all,
.grid-two-column-span-cols {
    grid-column: 1 / 3;
}

.grid-elem {
    &:not(:first-child) {
        border-top: 1px solid $colorInteriorBorder;
    }
    &.label {
        background-color: rgba(0,0,128,0.2);
    }
    &.value {
        background-color: rgba(0,128,0,0.2);
    }
}

.grid-row {
    display: contents;
}

.grid-row {
    .grid-cell {
        padding: 3px $interiorMarginLg 3px 0;
        &[title]:not([title=""]) {
            // When a cell has a title, assume it's helpful text
            cursor: help;
        }
    }
    &.force-border,
    &:not(:first-of-type) {
        // Row borders, effected via border-top on child elements of the row
        .grid-cell {
            border-top: 1px solid $colorInspectorSectionHeaderBg;
        }
    }
}

/******************************************************************* ABOUT SCREEN */
.l-about {
    &.abs {
        overflow: auto;
    }
    $contentH: 200px;
    .l-splash {
        position: relative;
        height: 45%;
    }
    .l-content {
        position: relative;
        margin-top: $interiorMarginLg;
    }
}

.s-about {
    line-height: 120%;

    a {
        color: $colorAboutLink;
    }

    h1, h2, h3 {
        color: pullForward($colorBodyFg, 20%);
        margin-bottom: 1em;
    }

    h1 {
        font-size: 2.25em;
    }

    h2 {
        border-top: 1px solid $colorInteriorBorder;
        font-size: 1.5em;
        margin-top: 2em;
        padding-top: 1em;
    }

    h3 {
        margin-top: 2em;
    }

    .s-description,
    .s-button {
        line-height: 2em;
    }
    .l-licenses-software {
        .l-license-software {
            border-top: 1px solid $colorInteriorBorder;
            padding: 0.5em 0;
            &:first-child {
                border-top: none;
            }
            em {
                color: pushBack($colorBodyFg, 20%);
            }
            h3 {
                font-size: 1.25em;
            }
            .s-license-text {
                font-size: 0.9em;
            }
        }
    }
}

/******************************************************************* STARTUP / SPLASH SCREEN */
@mixin splashElem($m: 20%) {
    top: $m; right: $m * 1.25; bottom: $m; left: $m * 1.25;
}

.l-splash,
.l-splash:before,
.l-splash:after {
    background-position: center;
    background-repeat: no-repeat;
    position: absolute;
}

.l-splash {
    background-size: cover;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    &:before,
    &:after {
        background-size: contain;
        content: '';
    }

    &:before {
        // NASA logo, dude
        $w: 5%;
        $m: 10px;
        background-image: url('../ui/layout/assets/images/logo-nasa.svg');
        top: $m;
        right: auto;
        bottom: auto;
        left: $m;
        height: auto;
        width: $w * 2;
        padding-bottom: $w;
        padding-top: $w;
    }

    &:after {
        // App logo
        top: 0;
        right: 15%;
        bottom: 0;
        left: 15%;
    }
}

.l-splash-holder {
    // Main outer holder for splash.
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    z-index: 10000;
    opacity: 1;
    .l-splash {
        // The splash element.
        @include splashElem();
    }
}

@media only screen and (max-device-width: 767px) {
    .l-splash-holder .l-splash {
        @include splashElem(0);
        border-radius: 0;
        box-shadow: none;
    }
}

@media only screen and (max-device-width: 767px) and (orientation: portrait) {
    .l-splash-holder .l-splash {
        &:before {
            // Make the NASA logo a bit bigger when we're in portrait mode.
            $w: 12%;
            width: $w * 2;
            padding-bottom: $w;
            padding-top: $w;
        }
    }
}

/******************************************************************* VARIOUS */
.c-overlay mct-include {
    display: inline; // Fallback for display: contents
    display: contents;
}

mct-container {
    display: block;
}

.overlay {
    .outer-holder {
        background: $colorMenuBg;
        color: $colorMenuFg !important;
    }
}

.t-popup {
    z-index: 75;
}

.form .form-row {
    .label {
        color: $colorMenuFg !important;
    }
    .selector-list {
        @include reactive-input();
        background: $colorInputBg !important;
        color: $colorInputFg !important;
    }
}

.ui-symbol.view-control {
    display: block;
    transform-origin: center center;

    &:before { content: $glyph-icon-arrow-right-equilateral; }

    &.expanded {
        transform: rotate(90deg);
    }
}

.t-frame-outer {
    min-width: 200px;
    min-height: 200px;
}

.l-iframe {
    iframe {
        display: block;
        height: 100%;
        width: 100%;
        border: none;
    }
}

// Alert elements in views
.s-unsynced {
    @include sUnsynced();
}

.s-status-timeconductor-unsynced {
    // Plot areas
    .gl-plot .gl-plot-display-area {
        @include sUnsynced();
    }

    // Object headers
    .object-header {
        .t-object-alert {
            display: inline;
        }
    }
}

.abs {
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    height: auto;
    width: auto;
}

.code {
    font-family: "Lucida Console", monospace;
    font-size: 0.7em;
    line-height: 150%;
    white-space: pre;
}

.codehilite {
    @extend .code;
    background-color: rgba($colorBodyFg, 0.1);
    padding: 1em;
}

.s-status-missing {
    // Labels. Expects .s-status-missing to be applied to mct-representation that contains
    .t-object-label .t-item-icon:before {
        content: $glyph-icon-object-unknown;
    }

    // Item, grid item. Expects .s-status-missing to be applied to mct-representation that contains .item.grid-item
    .item .t-item-icon-glyph:before {
        content: $glyph-icon-object-unknown;
    }

    // Object header. Expects .s-status-missing to be applied to mct-representation.object-header
    &.object-header {
        .type-icon:before {
            content: $glyph-icon-object-unknown;
        }
    }

    // Tree item. Expects .s-status-missing to be applied to .tree-item,
    // and mct-representation.search-item
    &.tree-item,
    &.search-item {
        > .rep-object-label .t-item-icon:before {
            content: $glyph-icon-object-unknown;
        }
    }
}

.align-right {
    text-align: right;
}

.centered {
    text-align: center;
}

.no-selection {
    // aka selection = "None". Used in palettes and their menu buttons.
    $c: red;
    $s: 48%;
    $e: 52%;
    background-image: linear-gradient(-45deg,
            transparent $s - 5%,
            $c $s,
            $c $e,
            transparent $e + 5%
    );
    box-shadow:inset rgba(black, 0.3) 0 0 0 1px;
    background-repeat: no-repeat;
    background-size: contain;
}

.scrolling,
.scroll {
    overflow: auto;
}

.vscroll {
    overflow-x: hidden;
    overflow-y: auto;
    &.scroll-pad {
        padding-right: $interiorMargin;
    }
}

.vscroll--persist {
    overflow-x: hidden;
    overflow-y: scroll;
}

.slidable {
    cursor: move; // Fallback
    cursor: grab;
    cursor: -moz-grab;
    cursor: -webkit-grab;
    &.horz {
        cursor: col-resize;
    }
    &.vert {
        cursor: row-resize;
    }
}

.no-margin {
    margin: 0;
}

.ds {
    box-shadow: rgba(#000, 0.7) 0 4px 10px 2px;
}

.capitalize {
    text-transform: capitalize;
}

.hide,
.hidden,
.t-main-view .hide-in-t-main-view {
    display: none !important;
}

.hide-nice {
    opacity: 0;
    pointer-events: none;
}

.invisible {
    display: block;
    visibility: hidden;
    height: 0;
    padding: 0;
    border: 0;
    margin: 0 !important;
    transform: scale(0);
    pointer-events: none;
    position: absolute;
}

.sep {
    color: rgba(#fff, 0.2);
}

.comma-list span {
    &:not(:first-child) {
        &:before {
            content: ', ';
        }
    }
}