index.css

/*!
 * Copyright 2024 Adobe. All rights reserved.
 *
 * This file is licensed to you 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 REPRESENTATIONS
 * OF ANY KIND, either express or implied. See the License for the specific language
 * governing permissions and limitations under the License.
 */

.spectrum-ColorArea {
	position: relative;
	display: inline-block;
	cursor: default;
	min-inline-size: var(--spectrum-color-area-minimum-width);
	min-block-size: var(--spectrum-color-area-minimum-height);
	inline-size: var(--spectrum-color-area-width);
	block-size: var(--spectrum-color-area-height);
	box-sizing: border-box;
	border-radius: var(--spectrum-color-area-border-rounding);
	border: var(--spectrum-color-area-border-width) solid color-mix(in sRGB, var(--spectrum-gray-1000) calc(var(--spectrum-color-area-border-opacity) * 100%), transparent);

	touch-action: none; /* Disable touch scrolling on touch devices to allow for color picking */
	user-select: none;

	&.is-focused {
		z-index: 2;
	}

	&.is-disabled {
		pointer-events: none;
		background: var(--spectrum-disabled-background-color);
		border-color: transparent;

		.spectrum-ColorArea-gradient {
			display: none;
		}
	}
}

.spectrum-ColorArea-handle {
	transform: translate(calc(var(--spectrum-color-area-width) - var(--spectrum-color-area-border-width)), 0);
	inset-block-start: 0;

	&:dir(rtl) {
		inset-inline-end: 0;
	}
}

.spectrum-ColorArea-gradient {
	inline-size: 100%;
	block-size: 100%;

	/* calc used here to properly calculate the `border-radius` for the gradient such that it aligns with the `border-radius` of the enclosing border */
	border-radius: calc(var(--spectrum-color-area-border-rounding) - var(--spectrum-color-area-border-width));
}

.spectrum-ColorArea-slider {
	opacity: 0;
	position: absolute;
	inset-block-start: 0;
	inset-inline-start: 0;
	inline-size: 100%;
	block-size: 100%;
	z-index: 0;
	margin: 0;
	pointer-events: none;
}

/* Windows High Contrast Mode */
@media (forced-colors: active) {
	.spectrum-ColorArea.is-disabled {
		background: Canvas;
	}

	.spectrum-ColorArea-gradient {
		forced-color-adjust: none;
	}
}