style.scss

// The scrim behind the modal window.
.components-modal__screen-overlay {
	position: fixed;
	top: 0;
	right: 0;
	bottom: 0;
	left: 0;
	background-color: rgba($black, 0.35);
	z-index: z-index(".components-modal__screen-overlay");
	display: flex;
	// backdrop-filter: blur($grid-unit);
	// This animates the appearance of the white background.
	@include edit-post__fade-in-animation();
}

// The modal window element.
.components-modal__frame {
	@include reset;
	// Use the entire viewport on smaller screens.
	margin: $grid-unit-50 0 0 0;
	width: 100%;
	background: $white;
	box-shadow: $shadow-modal;
	border-radius: $grid-unit-05 $grid-unit-05 0 0;
	overflow: hidden;
	// Have the content element fill the vertical space yet not overflow.
	display: flex;
	// Animate the modal frame/contents appearing on the page.
	animation: components-modal__appear-animation 0.1s ease-out;
	animation-fill-mode: forwards;
	@include reduce-motion("animation");

	// Show a centered modal on bigger screens.
	@include break-small() {
		border-radius: $grid-unit-05;
		margin: auto;
		width: auto;
		min-width: $modal-min-width;
		max-width: calc(100% - #{$grid-unit-20 * 2});
		max-height: calc(100% - #{$header-height * 2});

		&.is-full-screen {
			@include break-small() {
				width: calc(100% - #{ $grid-unit-20 * 2 });
				height: calc(100% - #{ $grid-unit-20 * 2 });
				max-height: none;
			}
			@include break-medium() {
				width: calc(100% - #{ $grid-unit-50 * 2 });
				height: calc(100% - #{ $grid-unit-50 * 2 });
				max-width: none;
			}
		}

		&.has-size-small,
		&.has-size-medium,
		&.has-size-large {
			width: 100%;
		}

		// The following widths were selected to align with existing baselines
		// found elsewhere in the editor.
		// See https://github.com/WordPress/gutenberg/pull/54471#issuecomment-1723818809
		&.has-size-small {
			max-width: $modal-width-small;
		}
		&.has-size-medium {
			max-width: $modal-width-medium;
		}
		&.has-size-large {
			max-width: $modal-width-large;
		}

	}

	@include break-large() {
		max-height: 70%;
	}
}

@keyframes components-modal__appear-animation {
	from {
		transform: translateY($grid-unit-40);
	}
	to {
		transform: translateY(0);
	}
}

// Fix header to the top so it is always there to provide context to the modal
// if the content needs to be scrolled (for example, on the keyboard shortcuts
// modal screen).
.components-modal__header {
	box-sizing: border-box;
	border-bottom: $border-width solid transparent;
	padding: $grid-unit-30 $grid-unit-40 $grid-unit-10;
	display: flex;
	flex-direction: row;
	justify-content: space-between;
	align-items: center;
	height: $header-height + $grid-unit-15;
	width: 100%;
	z-index: z-index(".components-modal__header");
	position: absolute;
	top: 0;
	left: 0;

	.components-modal__header-heading {
		font-size: 1.2rem;
		font-weight: 600;
	}

	h1 {
		line-height: 1;
		margin: 0;
	}

	.components-button {
		position: relative;
		left: $grid-unit-10;
	}

	.components-modal__content.has-scrolled-content:not(.hide-header) & {
		border-bottom-color: $gray-300;
	}

	& + p {
		margin-top: 0;
	}
}

.components-modal__header-heading-container {
	align-items: center;
	flex-grow: 1;
	display: flex;
	flex-direction: row;
	justify-content: left;
}

.components-modal__header-icon-container {
	display: inline-block;

	svg {
		max-width: $button-size;
		max-height: $button-size;
		padding: $grid-unit-10;
	}
}

// Modal contents.
.components-modal__content {
	flex: 1;
	margin-top: $header-height + $grid-unit-15;
	// Small top padding required to avoid cutting off the visible outline when the first child element is focusable.
	padding: $grid-unit-05 $grid-unit-40 $grid-unit-40;
	overflow: auto;

	&.hide-header {
		margin-top: 0;
		padding-top: $grid-unit-40;
	}

	&.is-scrollable:focus-visible {
		box-shadow: inset 0 0 0 var(--wp-admin-border-width-focus) $components-color-accent;

		// Windows High Contrast mode will show this outline, but not the box-shadow.
		outline: 2px solid transparent;
		outline-offset: -2px;
	}
}