/**
 * Mouton Library — 楽譜個別ページ
 *
 * @package Mouton
 */

.site-main--library-single {
	--library-primary: #14213d;
	--library-accent: #3d6a8c;
	--library-accent-light: #edf4f8;
	--library-badge: #c75146;
	--library-bg: #f8f9fa;
	--library-text: #333333;
	--library-text-sub: #555555;
	--library-border: #dcdfe5;
	--library-radius: 8px;
	--library-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
	--library-font: "Helvetica Neue", Arial, "Hiragino Kaku Gothic ProN", "Hiragino Sans", Meiryo, sans-serif;
}

.library-page--single {
	background: var(--library-bg);
	color: var(--library-text);
	font-family: var(--library-font);
	line-height: 1.7;
	letter-spacing: 0.03em;
}

.library-page--single a {
	color: inherit;
	text-decoration: none;
	transition: color 0.2s ease;
}

.library-page--single a:hover {
	color: var(--library-accent);
}

.library-single__btn-buy,
.library-single__btn-buy:hover,
.library-single__btn-buy:focus-visible,
.library-single__sample-btn:hover,
.library-single__sample-btn:focus-visible {
	color: #fff !important;
}

.library-single__breadcrumb {
	max-width: 1100px;
	margin: 15px auto 30px;
	padding: 0 20px;
	font-size: 0.8rem;
	color: #888;
}

.library-single__breadcrumb a {
	color: #555;
}

.library-single__breadcrumb a:hover {
	color: var(--library-primary);
	text-decoration: underline;
}

.library-single__breadcrumb-sep {
	margin: 0 0.35em;
}

.library-single__breadcrumb-current {
	color: #666;
}

.library-single__hero {
	display: grid;
	grid-template-columns: 420px 1fr;
	gap: 50px;
	max-width: 1100px;
	margin: 0 auto 60px;
	padding: 0 20px;
}

.library-single__visual {
	display: flex;
	flex-direction: column;
	gap: 15px;
}

.library-single__cover {
	display: flex;
	align-items: center;
	justify-content: center;
	aspect-ratio: 1 / 1.414;
	width: 100%;
	overflow: hidden;
	background: #fff;
	border: 1px solid var(--library-border);
	box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
}

.library-single__cover-img {
	width: 100%;
	height: 100%;
	object-fit: contain;
	object-position: center;
}

.library-single__cover-placeholder {
	color: #bbb;
	font-size: 1.1rem;
	font-weight: bold;
}

.library-single__sample-btn {
	display: block;
	width: 100%;
	padding: 14px;
	border: 2px solid var(--library-primary);
	font-size: 1rem;
	font-weight: bold;
	text-align: center;
	background: #fff;
	color: var(--library-primary);
	transition: background 0.2s ease, color 0.2s ease;
}

.library-single__sample-btn:hover {
	background: var(--library-primary);
}

.library-single__info {
	display: flex;
	flex-direction: column;
}

.library-single__meta-line {
	display: flex;
	flex-wrap: wrap;
	gap: 10px;
	align-items: center;
	margin-bottom: 10px;
}

.library-single__classification-tags {
	display: flex;
	flex-wrap: wrap;
	gap: 8px;
	margin-bottom: 14px;
}

.library-single__classification-tag {
	display: inline-block;
	padding: 4px 12px;
	border: 1px solid var(--library-border);
	border-radius: 4px;
	font-size: 0.82rem;
	font-weight: bold;
	text-decoration: none;
	background: #fff;
	transition: color 0.2s, background 0.2s, border-color 0.2s;
}

.library-single__classification-tag--work-type {
	border-color: var(--library-primary);
	color: var(--library-primary);
}

.library-single__classification-tag--work-type:hover {
	color: #fff;
	background: var(--library-primary);
}

.library-single__classification-tag--category {
	border-color: #3d8b5a;
	color: #3d8b5a;
}

.library-single__classification-tag--category:hover {
	color: #fff;
	background: #3d8b5a;
}

.library-single__classification-tag--subcategory {
	border-color: var(--library-accent);
	color: var(--library-accent);
}

.library-single__classification-tag--subcategory:hover {
	color: #fff;
	background: var(--library-accent);
}

.library-single__code {
	font-size: 0.85rem;
	color: var(--library-text-sub);
}

.library-single__title {
	margin: 0 0 5px;
	font-size: clamp(1.6rem, 3vw, 2rem);
	font-weight: 900;
	line-height: 1.3;
	color: var(--library-primary);
}

.library-single__title-en {
	margin: 0 0 25px;
	font-family: Georgia, "Times New Roman", serif;
	font-size: 1.05rem;
	font-style: italic;
	color: #888;
}

.library-single__creators {
	display: flex;
	flex-direction: column;
	gap: 10px;
	margin-bottom: 30px;
}

.library-single__creator-row {
	display: flex;
	gap: 15px;
	align-items: center;
}

.library-single__creator-tags {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	gap: 8px;
}

.library-single__creator-label {
	flex-shrink: 0;
	width: 50px;
	font-size: 0.95rem;
	line-height: 1.4;
	color: var(--library-text-sub);
}

.library-single__creator-tag {
	display: inline-block;
	padding: 6px 16px;
	border: 1px solid var(--library-border);
	border-radius: 4px;
	font-size: 0.95rem;
	line-height: 1.4;
	font-weight: bold;
	color: var(--library-primary);
	text-decoration: none;
	background: #fff;
	transition: border-color 0.2s, background 0.2s;
}

.library-single__creator-tag:hover {
	border-color: var(--library-primary);
	background: var(--library-bg);
}

.library-single__purchase {
	margin-top: auto;
	padding: 30px;
	background: #fff;
	border: 1px solid var(--library-border);
	border-top: 4px solid var(--library-accent);
}

.library-single__price-wrap {
	margin-bottom: 20px;
}

.library-single__price {
	font-size: clamp(2rem, 4vw, 2.4rem);
	font-weight: 900;
	line-height: 1.1;
	color: var(--library-badge);
}

.library-single__price span {
	margin-left: 5px;
	font-size: 1rem;
	font-weight: normal;
	color: var(--library-text-sub);
}

.library-single__formats {
	display: flex;
	gap: 15px;
	margin-bottom: 25px;
}

.library-single__format-radio {
	position: absolute;
	width: 1px;
	height: 1px;
	padding: 0;
	margin: -1px;
	overflow: hidden;
	clip: rect(0, 0, 0, 0);
	white-space: nowrap;
	border: 0;
}

.library-single__format-label {
	flex: 1;
	padding: 12px;
	border: 1px solid var(--library-border);
	font-weight: bold;
	text-align: center;
	color: var(--library-text-sub);
	background: #fdfdfd;
	cursor: pointer;
	transition: all 0.2s ease;
}

.library-single__format-radio:checked + .library-single__format-label {
	border-color: var(--library-accent);
	color: var(--library-primary);
	background: var(--library-accent-light);
	box-shadow: inset 0 0 0 1px var(--library-accent);
}

.library-single__formats--single .library-single__format-label {
	border-color: var(--library-accent);
	color: var(--library-primary);
	background: var(--library-accent-light);
	box-shadow: inset 0 0 0 1px var(--library-accent);
	cursor: default;
}

.library-single__format-radio:focus-visible + .library-single__format-label {
	outline: 2px solid var(--library-accent);
	outline-offset: 2px;
}

.library-single__btn-buy {
	display: inline-flex;
	gap: 10px;
	align-items: center;
	justify-content: center;
	width: 100%;
	padding: 18px;
	border: none;
	font-size: 1.15rem;
	font-weight: bold;
	letter-spacing: 0.08em;
	color: #fff;
	background: var(--library-accent);
	transition: background 0.2s ease, transform 0.2s ease;
}

.library-single__btn-buy:hover {
	background: #315872;
	transform: translateY(-1px);
}

.library-single__btn-buy-icon {
	flex-shrink: 0;
}

.library-single__purchase-note {
	margin: 10px 0 0;
	font-size: 0.8rem;
	text-align: center;
	color: #888;
}

.library-single__detail {
	max-width: 800px;
	margin: 0 auto 80px;
	padding: 0 20px;
}

.library-single__videos {
	display: grid;
	gap: 24px;
	margin-bottom: 50px;
}

.library-single__videos--multiple {
	grid-template-columns: repeat(2, minmax(0, 1fr));
}

.library-single__video {
	margin-bottom: 0;
}

.library-single__video-wrap {
	position: relative;
	height: 0;
	padding-bottom: 56.25%;
	overflow: hidden;
	background: #111;
}

.library-single__video-iframe {
	position: absolute;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
	border: 0;
}

.library-single__heading {
	display: flex;
	gap: 10px;
	align-items: center;
	margin: 0 0 20px;
	font-size: 1.3rem;
	color: var(--library-primary);
}

.library-single__heading::before {
	display: block;
	width: 4px;
	height: 1.2em;
	content: "";
	background: var(--library-accent);
}

.library-single__description {
	margin-bottom: 50px;
	padding: 30px;
	font-size: 1.05rem;
	color: var(--library-text);
	background: #fff;
	border: 1px solid var(--library-border);
}

.library-single__description p {
	margin: 0 0 15px;
}

.library-single__description p:last-child {
	margin-bottom: 0;
}

.library-single__table {
	width: 100%;
	margin-bottom: 50px;
	border-collapse: collapse;
	background: #fff;
}

.library-single__table th,
.library-single__table td {
	padding: 15px 20px;
	border-bottom: 1px solid var(--library-border);
	font-size: 0.95rem;
}

.library-single__table th {
	width: 28%;
	font-weight: bold;
	text-align: left;
	color: var(--library-text-sub);
	background: #fafafa;
}

.library-single__formation-sections {
	display: grid;
	grid-template-columns: repeat(3, minmax(0, 1fr));
	gap: 16px;
	margin-bottom: 50px;
}

.library-single__formation-section {
	padding: 20px;
	background: #fff;
	border: 1px solid var(--library-border);
}

.library-single__formation-section-title {
	margin: 0 0 12px;
	padding-bottom: 8px;
	border-bottom: 2px solid var(--library-primary);
	font-size: 0.95rem;
	font-weight: 900;
	color: var(--library-primary);
}

.library-single__formation-section-list {
	margin: 0;
	padding: 0;
	list-style: none;
}

.library-single__formation-section-item {
	position: relative;
	padding-left: 1em;
	font-size: 0.92rem;
	line-height: 1.7;
	color: var(--library-text);
}

.library-single__formation-section-item::before {
	content: "・";
	position: absolute;
	left: 0;
	font-weight: 900;
	color: #e5b700;
}

.library-single__formation-list {
	display: flex;
	flex-wrap: wrap;
	gap: 8px 16px;
	margin-bottom: 50px;
	padding: 30px;
	background: #fff;
	border: 1px solid var(--library-border);
}

.library-single__formation-item {
	display: inline-flex;
	gap: 4px;
	align-items: baseline;
	font-size: 0.95rem;
	line-height: 1.6;
	color: var(--library-text);
}

.library-single__formation-bullet {
	font-size: 1.35em;
	font-weight: 900;
	line-height: 1;
	color: #e5b700;
}

.library-single__tag-section {
	margin-bottom: 50px;
}

.library-single__tag-section:last-child {
	margin-bottom: 0;
}

.library-single__tags {
	display: flex;
	flex-wrap: wrap;
	gap: 10px;
}

.library-single__tag {
	display: inline-block;
	padding: 6px 14px;
	border-radius: 2px;
	font-size: 0.85rem;
	font-weight: bold;
	color: var(--library-text-sub);
	text-decoration: none;
	background: #e4e7ed;
	transition: background 0.2s ease, color 0.2s ease;
}

.library-single__tag:hover {
	color: #fff;
	background: var(--library-primary);
}

@media (max-width: 850px) {
	.library-single__hero {
		grid-template-columns: 1fr;
		gap: 30px;
	}

	.library-single__formats {
		flex-direction: column;
	}
}

@media (max-width: 768px) {
	.library-single__videos--multiple {
		grid-template-columns: 1fr;
	}

	.library-single__formation-sections {
		grid-template-columns: 1fr;
	}

	.library-single__purchase {
		padding: 24px 20px;
	}

	.library-single__description,
	.library-single__formation-list {
		padding: 20px;
	}
}