/* ============================================================
 * PDF Link Block — style.css（フロントエンド）
 * ============================================================ */

.pdf-link-block {
	margin-block: 1.5em;
	text-align: left;
}

/* 配置サポート */
.pdf-link-block.alignwide,
.pdf-link-block.alignfull {
	text-align: center;
}

/* ---- リンク ---- */
.pdf-link-block__link {
	display: inline-block;
	text-decoration: none;
	position: relative;
}

/* ---- サムネイル ---- */
.pdf-link-block__thumbnail {
	display: block;
	max-width: 100%;
	height: auto;
	border-radius: 3px;
	box-shadow: 0 2px 10px rgba(0, 0, 0, 0.15);
	transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.pdf-link-block__link:hover .pdf-link-block__thumbnail,
.pdf-link-block__link:focus .pdf-link-block__thumbnail {
	box-shadow: 0 6px 20px rgba(0, 0, 0, 0.25);
	transform: translateY(-2px);
}

.pdf-link-block__link:focus {
	outline: 2px solid #0070f3;
	outline-offset: 4px;
	border-radius: 4px;
}

/* ---- サムネイルなしフォールバック ---- */
.pdf-link-block__no-thumbnail {
	display: inline-flex;
	flex-direction: column;
	align-items: center;
	justify-content: center;
	gap: 12px;
	width: 180px;
	height: 250px;
	background: #f5f5f5;
	border: 1px solid #ddd;
	border-radius: 4px;
	color: #777;
	font-size: 13px;
	text-decoration: none;
	transition: background 0.2s;
}

.pdf-link-block__link:hover .pdf-link-block__no-thumbnail {
	background: #eaeaea;
}

/* ---- キャプション ---- */
.pdf-link-block__caption {
	display: block;
	text-align: center;
	font-size: 0.875em;
	color: #666;
	margin-top: 0.5em;
}