/*
 * What you're currently looking at is the source code of a legally protected, proprietary software.
 * CKEditor 5 Collaboration is licensed under a commercial license and protected by copyright law. Where not otherwise indicated,
 * all CKEditor 5 Collaboration content is authored by CKSource engineers and consists of CKSource-owned intellectual property.
 *
 * Copyright (c) 2003-2024, CKSource Holding sp. z o.o. All rights reserved.
 * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license
 */

.ck {
	--ck-revision-history-revision-background-color: var(--ck-color-base-background);
	--ck-revision-history-revision-border-color: hsl(213deg 20% 35%);
	--ck-revision-history-revision-box-shadow: 0 1px 1px 1px hsl(0deg 0% 90%);
	--ck-revision-history-revision-author-icon-offset: 20px;
	--ck-revision-history-revision-transitions: background 100ms ease-in, border 100ms ease-in;
	--ck-revision-history-revision-selected-text-color: var(--ck-color-base-background);
	--ck-revision-history-revision-selected-input-text-color-empty: var(--ck-color-base-background);
	--ck-revision-history-revision-selected-background-color: var(--ck-color-base-active);
	--ck-revision-history-revision-highlighted-background-color: hsl(208deg 100% 94%);
	--ck-revision-history-revision-highlighted-background-color-hover: hsl(208deg 100% 90%);
	--ck-revision-history-revision-delete-confirmation-background: hsl(0deg 100% 90%);
	--ck-revision-history-revision-delete-confirmation-active-button-background: hsl(0deg 100% 85%);
}

.ck.ck-revision-history-sidebar__revision-wrapper {
	& .ck-revision-history-sidebar__revision {
		position: relative;
		display: block;
		background: var(--ck-revision-history-revision-background-color);

		padding: var(--ck-spacing-large) calc(2 * var(--ck-spacing-standard));
		border-radius: var(--ck-border-radius);
		border-left: 3px solid var(--ck-revision-history-revision-border-color);
		box-shadow: var(--ck-revision-history-revision-box-shadow);
		width: 100%;
		/*transition: var(--ck-revision-history-revision-transitions), transform .3s ease-in-out;*/
		transition: transform .3s ease;

		@media (prefers-reduced-motion: reduce) {
			transition: none;
		}

		&:last-child {
			margin-bottom: 0;
		}

		& .ck-revision-history-sidebar__revision__date {
			display: block;
			font-size: var(--ck-font-size-small);
			font-weight: bold;
			opacity: .8;
			overflow: hidden;
			text-overflow: ellipsis;
			width: 100%;
			white-space: nowrap;
			/*transition: var(--ck-revision-history-revision-transitions);*/
		}

		& .ck-revision-history-sidebar__revision__controls-wrapper {
			display: flex;
			flex-direction: row;
			align-items: flex-start;
			margin: var(--ck-spacing-standard) 0 0;
		}

		& .ck-revision-history-sidebar__revision-authors {
			padding: 0;
			margin: 0 0 0 var(--ck-revision-history-revision-author-icon-offset);
			flex: 0 1 auto;
			min-width: 0;
		}

		&.ck-revision-history-sidebar__revision_selected,
		&.ck-revision-history-sidebar__revision_highlighted {
			border-left-color: transparent;
			transform: translateX(calc(-1 * var(--ck-revision-history-sidebar-timeline-padding)));
			border-top-left-radius: 0;
			border-bottom-left-radius: 0;
		}

		&.ck-revision-history-sidebar__revision_selected {
			background: var(--ck-revision-history-revision-selected-background-color);
			color: var(--ck-revision-history-revision-selected-text-color);

			& .ck-revision-history-sidebar__revision-name .ck-input {
				color: var(--ck-revision-history-revision-selected-text-color);

				/* The placeholder displays the date but without a different opacity it would not be unclear
				whether this is an actual input value or not */
				&.ck-input-text_empty::placeholder {
					opacity: .7;
				}
			}
		}

		&.ck-revision-history-sidebar__revision_highlighted {
			background: var(--ck-revision-history-revision-highlighted-background-color);
		}

		&.ck-revision-history-sidebar__actions_dropdown_open {
			z-index: var(--ck-z-default);
		}
	}

	/* Slide the revision to the left when the delete confirmation prompt shows up. */
	&.ck-revision-history-sidebar__revision-wrapper_confirmation_visible {
		& .ck-revision-history-sidebar__revision {
			box-shadow: none;
			position: relative;
			transform: translate3d( -100%, 0, 0 );

			&, & * {
				--ck-revision-history-revision-background-color: transparent;
				--ck-revision-history-revision-selected-background-color: transparent;
				--ck-revision-history-revision-highlighted-background-color: transparent;
			}
		}
	}

	/* A confirmation that shows up when attempting to delete a revision */
	& .ck-thread__remove-confirm {
		display: flex;
		flex-direction: row;
		justify-content: space-around;
		align-items: center;

		position: absolute;
		top: 0;
		left: 100%;
		width: 100%;
		height: 100%;

		border-radius: var(--ck-border-radius);
		box-shadow: var(--ck-revision-history-revision-box-shadow);
		background: var(--ck-revision-history-revision-delete-confirmation-background);
		user-select: none;

		& .ck-thread__remove-confirm-inner {
			text-align: center;
			margin-top: var(--ck-spacing-small);

			/* Confirmation message */
			& p {
				margin: 0;
				font-weight: bold;
				color: var(--ck-color-text);
			}

			/* Confirmation buttons */
			& .ck-thread__remove-confirm-actions {
				display: flex;
				flex-direction: row;
				justify-content: space-evenly;

				& .ck.ck-button {
					&:hover, &:focus, &:active {
						background: var(--ck-revision-history-revision-delete-confirmation-active-button-background);
					}

					&.ck-thread__remove-confirm-submit {
						color: var(--ck-color-button-save);
					}

					&.ck-thread__remove-confirm-cancel {
						color: var(--ck-color-button-cancel);
					}
				}
			}
		}
	}

	& .ck-revision-history-sidebar__subrevisions {
		margin-left: var(--ck-spacing-large);
	}
}