/*
 * Copyright (C) 2013-2020 Apple Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
 * THE POSSIBILITY OF SUCH DAMAGE.
 */

.timeline-overview {
    --timeline-sidebar-width: 197px;
}

.timeline-overview > :is(.navigation-bar.timelines, .tree-outline.timelines) {
    border-inline-end: 1px solid var(--border-color);
    inset-inline-start: 0;
}

.timeline-overview:not(.frames) > :is(.scroll-container, .timeline-ruler, .graphs-container) {
    inset-inline-start: var(--timeline-sidebar-width);
}

.timeline-overview > .navigation-bar.timelines {
    box-sizing: border-box;
    justify-content: flex-start;
    position: absolute;
    top: 0;
    z-index: var(--z-index-header);
    width: var(--timeline-sidebar-width);
    height: 23px;
    background-color: var(--background-color);
    border-bottom: 1px solid var(--border-color);
}

.navigation-bar.timelines .item.text.enabled-timelines {
    font-style: italic;
    color: hsl(0, 0%, 50%);
}

.navigation-bar.timelines .item.button.toggle-edit-instruments:not(.disabled):is(:focus, .activate.activated, .radio.selected) {
    color: var(--glyph-color-active);
}

.navigation-bar.timelines .item.button.toggle-edit-instruments:not(.disabled):active:is(:focus, .activate.activated, .radio.selected) {
    color: var(--glyph-color-active-pressed);
}

.navigation-bar.timelines .item.button.toggle-edit-instruments.disabled {
    color: var(--glyph-color-disabled);
}

.navigation-bar.timelines .toggle-edit-instruments:not(.disabled):active {
    color: var(--glyph-color-pressed);
}

.timeline-overview > .tree-outline.timelines {
    position: absolute;
    top: 23px;
    z-index: var(--z-index-header);
    width: var(--timeline-sidebar-width);
    background-color: var(--panel-background-color);
}

.timeline-overview.edit-instruments > .tree-outline.timelines {
    bottom: 0;
}

.timeline-overview.edit-instruments > .tree-outline.timelines .item.selected {
    color: var(--text-color);
    background-color: transparent;
}

.timeline-overview > .tree-outline.timelines .close-button {
    width: 14px;

    visibility: hidden;
}

.timeline-overview > .tree-outline.timelines .item.selected .close-button {
    visibility: visible;
}

.timeline-overview > .tree-outline.timelines input[type=checkbox].status-button {
    width: 12px;
    height: 12px;
}

.timeline-overview.edit-instruments > .tree-outline.timelines .item:nth-child(even),
.timeline-overview > .tree-outline.timelines .item:not(.selected):nth-child(even) {
    background-color: hsla(0, 0%, var(--foreground-lightness), 0.03);
    background-clip: padding-box;
}

.timeline-overview.edit-instruments > .tree-outline.timelines .item:not(:first-child),
.timeline-overview > .tree-outline.timelines .item:not(.selected):not(:first-child) {
    border-top-color: hsla(0, 0%, var(--foreground-lightness), 0.09);
}

body:is(.window-inactive, .window-docked-inactive) .timeline-overview:not(.edit-instruments) > .tree-outline.timelines .item.selected + .item {
    border-top-color: var(--selected-background-color-unfocused);
}

body:not(.window-inactive, .window-docked-inactive) .timeline-overview:not(.edit-instruments) > .tree-outline.timelines:focus-within .item.selected + .item {
    border-top-color: var(--selected-background-color);
}

.timeline-overview > .scroll-container {
    position: absolute;
    right: 0;
    bottom: 0;
    left: 0;
    height: 16px;
    overflow-x: auto;
    overflow-y: hidden;
    opacity: 0;

 /* Allows the horizontal scroll bar to be interacted with. */
    z-index: calc(var(--z-index-resizer) + 1);
}

.timeline-overview.frames > :is(.tree-outline.timelines, .navigation-bar.timelines) {
    display: none;
}

.timeline-overview.frames > .scroll-container {
    left: 0;
}

.timeline-overview:hover > .scroll-container {
    opacity: 0.75;
}

.timeline-overview > .scroll-container:hover {
    opacity: 1;
}

.timeline-overview > .timeline-ruler {
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
}

.timeline-overview.frames > .timeline-ruler {
    left: 0;
}

.timeline-overview > .timeline-ruler > .markers {
    top: 23px;
}

.timeline-overview.frames > .timeline-ruler > .markers > .marker:not(.current-time) {
    display: none;
}

.timeline-overview.frames > .timeline-ruler > .header > .divider,
.timeline-overview.frames > .timeline-ruler > .markers > .divider {
    transform: translateX(0px);
}

body[dir=ltr] .timeline-overview.frames > .timeline-ruler:not(.both-handles-clamped) > .selection-handle.right,
body[dir=rtl] .timeline-overview.frames > .timeline-ruler:not(.both-handles-clamped) > .selection-handle.left {
    transform: translateX(5px);
}

body[dir=ltr] .timeline-overview.frames > .timeline-ruler:not(.both-handles-clamped) > .shaded-area.right,
body[dir=rtl] .timeline-overview.frames > .timeline-ruler:not(.both-handles-clamped) > .shaded-area.left {
    transform: translateX(1px);
}

.timeline-overview > .graphs-container {
    position: absolute;
    top: 23px;
    right: 0;
    bottom: 0;
    left: 0;
}

.timeline-overview > .graphs-container > .timeline-overview-graph {
    height: 36px;
}

.timeline-overview:not(.frames) > .graphs-container > .timeline-overview-graph:nth-child(even) {
    background-color: hsl(0, 0%, 96%);
    background-clip: padding-box;
}

.timeline-overview:not(.frames) > .graphs-container > .timeline-overview-graph:not(:first-child) {
    border-top: 1px solid hsla(0, 0%, var(--foreground-lightness), 0.09);
}

.timeline-overview:not(.has-scrollbar) > .scroll-container {
    pointer-events: none;
}

.timeline-overview > .scroll-container > .scroll-width-sizer {
    position: absolute;
    top: 0;
    inset-inline-start: 0;
    height: 1px;
    visibility: hidden;
    pointer-events: none;
}

@media (prefers-color-scheme: dark) {
    .timeline-overview:not(.frames) > .graphs-container > .timeline-overview-graph:nth-child(even) {
        background: var(--background-color-alternate);
    }
}
