/*
 * @license Copyright (c) 2003-2026, CKSource Holding sp. z o.o. All rights reserved.
 * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-licensing-options
 */

:root,
:host {
	/* The variable is used by both editor and content styles. Keep it in sync with the identical declaration in `imagecaption.css`. */
	--ck-content-color-image-caption-background: hsl(0, 0%, 97%);
	--ck-content-color-image-caption-text: hsl(0, 0%, 20%);
	--ck-content-image-style-spacing: 1.5em;
	--ck-content-inline-image-style-spacing: calc(var(--ck-content-image-style-spacing) / 2);
}

.ck-content .image > figcaption {
	display: table-caption;
	caption-side: bottom;
	word-break: normal;
	overflow-wrap: anywhere;
	/*
	 * `break-before: avoid` is not Baseline "widely available" because its support for print/paged-media
	 * contexts specifically is reportedly unreliable in Firefox, even where nominally supported. There is
	 * no alternative CSS mechanism to keep this caption attached to its image across a page break, so this
	 * is an accepted, soft degradation (the caption may occasionally be orphaned onto the next printed page
	 * in Firefox specifically), not a functional break introduced by this change.
	 */
	/* eslint-disable-next-line css/use-baseline */
	break-before: avoid;
	color: var(--ck-content-color-image-caption-text);
	background-color: var(--ck-content-color-image-caption-background);
	padding: .6em;
	font-size: .75em;
	outline-offset: -1px;

	/* Improve placeholder rendering in high-constrast mode (https://github.com/ckeditor/ckeditor5/issues/14907). */
	@media (forced-colors: active) {
		background-color: unset;
		color: unset;
	}
}

/* Preserve aspect ratio of the resized image after introducing image height attribute. */

.ck-content img.image_resized {
	height: auto;
}

.ck-content .image.image_resized {
	max-width: 100%;
	/*
	The `<figure>` element for resized images must not use `display:table` as browsers do not support `max-width` for it well.
	See https://stackoverflow.com/questions/4019604/chrome-safari-ignoring-max-width-in-table/14420691#14420691 for more.
	Fortunately, since we control the width, there is no risk that the image will look bad.
	*/
	display: block;
	box-sizing: border-box;

	& img {
		/* For resized images it is the `<figure>` element that determines the image width. */
		width: 100%;
	}

	& > figcaption {
		/* The `<figure>` element uses `display:block`, so `<figcaption>` also has to. */
		display: block;
	}
}

.ck-content {
	/* See: https://github.com/ckeditor/ckeditor5/issues/16317 */
	& .image {
		/* Provides a minimal side margin for the left and right aligned images, so that the user has a visual feedback
		confirming successful application of the style if image width exceeds the editor's size.
		See https://github.com/ckeditor/ckeditor5/issues/9342 */
		&.image-style-block-align-left,
		&.image-style-block-align-right {
			max-width: calc(100% - var(--ck-content-image-style-spacing));
		}

		/* Allows displaying multiple floating images in the same line.
		See https://github.com/ckeditor/ckeditor5/issues/9183#issuecomment-804988132 */
		&.image-style-align-left,
		&.image-style-align-right {
			clear: none;
		}

		&.image-style-side {
			float: right;
			margin-left: var(--ck-content-image-style-spacing);
			max-width: 50%;
		}

		&.image-style-align-left {
			float: left;
			margin-right: var(--ck-content-image-style-spacing);
		}

		&.image-style-align-right {
			float: right;
			margin-left: var(--ck-content-image-style-spacing);
		}

		&.image-style-block-align-right {
			margin-right: 0;
			margin-left: auto;
		}

		&.image-style-block-align-left {
			margin-left: 0;
			margin-right: auto;
		}
	}

	& .image-style-align-center {
		margin-left: auto;
		margin-right: auto;
	}

	& .image-style-align-left {
		float: left;
		margin-right: var(--ck-content-image-style-spacing);
	}

	& .image-style-align-right {
		float: right;
		margin-left: var(--ck-content-image-style-spacing);
	}

	/* Simulates margin collapsing with the preceding paragraph, which does not work for the floating elements. */
	& p + .image.image-style-align-left,
	& p + .image.image-style-align-right,
	& p + .image.image-style-side {
		margin-top: 0;
	}

	& .image-inline {
		&.image-style-align-left,
		&.image-style-align-right {
			margin-top: var(--ck-content-inline-image-style-spacing);
			margin-bottom: var(--ck-content-inline-image-style-spacing);
		}

		&.image-style-align-left {
			margin-right: var(--ck-content-inline-image-style-spacing);
		}

		&.image-style-align-right {
			margin-left: var(--ck-content-inline-image-style-spacing);
		}
	}
}

.ck-content {
	& .image {
		display: table;
		clear: both;
		text-align: center;

		/* Make sure there is some space between the content and the image. Center image by default. */
		/* The first value should be equal to --ck-spacing-large variable if used in the editor context
	 	to avoid the content jumping (See https://github.com/ckeditor/ckeditor5/issues/9825). */
		margin: 0.9em auto;

		/* Make sure the caption will be displayed properly (See: https://github.com/ckeditor/ckeditor5/issues/1870). */
		min-width: 50px;

		& img {
			/* Prevent unnecessary margins caused by line-height (see https://github.com/ckeditor/ckeditor5/issues/44). */
			display: block;

			/* Center the image if its width is smaller than the content's width. */
			margin: 0 auto;

			/* Make sure the image never exceeds the size of the parent container (ckeditor/ckeditor5-ui#67). */
			max-width: 100%;

			/* Make sure the image is never smaller than the parent container (See: https://github.com/ckeditor/ckeditor5/issues/9300). */
			min-width: 100%;

			/* Keep proportions of the block image if the height is set and the image is wider than the editor width.
			See https://github.com/ckeditor/ckeditor5/issues/14542. */
			height: auto;
		}
	}

	& .image-inline {
		/*
		 * Normally, the .image-inline would have "display: inline-block" and "img { width: 100% }" (to follow the wrapper while resizing).
		 * Unfortunately, together with "srcset", it gets automatically stretched up to the width of the editing root.
		 * This strange behavior does not happen with inline-flex.
		 */
		display: inline-flex;

		/* While being resized, don't allow the image to exceed the width of the editing root. */
		max-width: 100%;

		/* This is required by Safari to resize images in a sensible way. Without this, the browser breaks the ratio. */
		align-items: flex-start;

		/* When the picture is present it must act as a flex container to let the img resize properly */
		& picture {
			display: flex;
		}

		/* When the picture is present, it must act like a resizable img. */
		& picture,
		& img {
			/* This is necessary for the img to span the entire .image-inline wrapper and to resize properly. */
			flex-grow: 1;
			flex-shrink: 1;

			/* Prevents overflowing the editing root boundaries when an inline image is very wide. */
			max-width: 100%;
		}
	}
}