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/*
 * Copyright 2026 Shota FUJI
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at https://mozilla.org/MPL/2.0/.
 *
 * SPDX-License-Identifier: MPL-2.0
 */

:host {
	display: flex;
	flex-direction: column;
}

.header {
	appearance: none;
	border: 0;
	padding: 0;
	padding: 1em;
	margin: 0;
	display: grid;
	grid-template-columns: 1fr min-content;
	gap: 0 0.5rem;
	grid-template-areas:
		"title caret"
		"description description";

	background: transparent;
	outline: 0;
	text-align: start;
}

.caret {
	align-self: center;
	display: flex;
	justify-content: center;
	align-items: center;
	width: 1.5rem;
	height: 1.5rem;
	font-family: "Barlow", sans-serif;
	font-size: 1rem;

	border-radius: 50%;

	transition: background-color 80ms ease-out;
}

.header:hover, .header:focus-visible {
	.caret {
		background-color: ButtonFace;
	}
}

.caret-symbol {
	margin-left: 0.18em;
	transform: rotate(90deg);

	@media not (prefers-reduced-motion: reduce) {
		transition: transform 100ms ease-out;
	}
}

:host([opened]) .caret-symbol {
	transform: rotate(90deg) scaleX(-1);
}

::slotted([slot="title"]) {
	grid-area: title;
	font-weight: 300;
	font-size: 1.2rem;
}

::slotted([slot="description"]) {
	grid-area: description;
	padding: 0.5em 0;
	font-size: 0.8rem;

	opacity: 0.8;
}

.body {
	display: none;
	flex-direction: column;
	gap: 0.5rem;
	padding: 1em;
}

:host([opened]) .body {
	display: flex;
}