/* =============================================================================
   ブログ一覧ページ — blog-archive.css
   AI開発実践ラボ
   ============================================================================= */

/* ── パンくずリスト ─────────────────────── */
.blog-breadcrumb {
	padding: 16px 0;
	font-size: 13px;
	color: var(--color-sub, #718096);
}
.blog-breadcrumb ol {
	display: flex;
	flex-wrap: wrap;
	gap: 4px;
	list-style: none;
	margin: 0;
	padding: 0;
}
.blog-breadcrumb li::after {
	content: '>';
	margin-left: 4px;
	color: var(--color-sub, #718096);
}
.blog-breadcrumb li:last-child::after {
	display: none;
}
.blog-breadcrumb a {
	color: var(--color-primary, #2B6CB0);
	text-decoration: none;
}
.blog-breadcrumb a:hover {
	text-decoration: underline;
}

/* ── ヘッダー ──────────────────────────── */
.blog-archive {
	padding: 0 0 64px;
	background: var(--color-bg-light, #F7F7F7);
	min-height: 80vh;
}
.blog-header {
	display: flex;
	align-items: baseline;
	gap: 16px;
	margin-bottom: 24px;
}
.blog-title {
	font-family: var(--font-family-heading, 'Space Grotesk', sans-serif);
	font-size: 28px;
	font-weight: 700;
	color: var(--color-heading, #2D3748);
	margin: 0;
}
.blog-count {
	font-size: 14px;
	color: var(--color-sub, #718096);
}

/* ── ヘッダー内検索欄（3カラムグリッドで検索欄を中央配置） ── */
.blog-header {
	display: grid;
	grid-template-columns: 1fr auto 1fr;
	align-items: center;
	gap: 16px;
}
.blog-header-left {
	grid-column: 1;
	display: flex;
	align-items: baseline;
	gap: 16px;
}
.blog-header-search {
	grid-column: 2;
	position: relative;
	width: 320px;
}
.blog-inline-search-input {
	width: 100%;
	padding: 8px 36px 8px 14px;
	font-size: 14px;
	border: 1px solid var(--color-border, #E2E8F0);
	border-radius: 8px;
	outline: none;
	transition: border-color 0.2s;
	box-sizing: border-box;
	background: var(--color-bg-white, #FFFFFF);
	color: var(--color-body, #4A5568);
}
.blog-inline-search-input::placeholder {
	color: var(--color-sub, #718096);
}
.blog-inline-search-input:focus {
	border-color: var(--color-primary, #2B6CB0);
}
.blog-inline-search-icon {
	position: absolute;
	right: 10px;
	top: 50%;
	transform: translateY(-50%);
	color: var(--color-sub, #718096);
	pointer-events: none;
}

/* ── カテゴリフィルタータブ ─────────────── */
.blog-filters {
	display: flex;
	justify-content: space-between;
	align-items: flex-start;
	gap: 16px;
	margin-bottom: 32px;
	flex-wrap: nowrap; /* 外側は折り返さない：コントロールを常に右端に固定 */
}
.blog-category-tabs {
	flex: 1;
	min-width: 0;
	display: flex;
	gap: 6px;
	flex-wrap: wrap; /* タブのみ内側で折り返す */
}
.blog-cat-tab {
	display: inline-flex;
	align-items: center;
	gap: 4px;
	padding: 6px 14px;
	border-radius: 20px;
	font-size: 13px;
	font-weight: 500;
	line-height: 1.4;
	font-family: inherit;
	color: var(--color-body, #4A5568);
	background: var(--color-bg-white, #FFFFFF);
	border: 1px solid var(--color-border, #E8E8E8);
	text-decoration: none;
	transition: all 0.2s ease;
	white-space: nowrap;
	margin: 0;
	box-sizing: border-box;
	cursor: pointer;
	appearance: none;
	-webkit-appearance: none;
}
.blog-cat-tab:hover {
	border-color: var(--color-primary, #2B6CB0);
	color: var(--color-primary, #2B6CB0);
}
.blog-cat-tab.is-active {
	background: var(--color-primary, #2B6CB0);
	color: #FFFFFF;
	border-color: var(--color-primary, #2B6CB0);
}
.blog-cat-count {
	font-size: 11px;
	opacity: 0.7;
}
.blog-cat-tab.is-active .blog-cat-count {
	opacity: 0.85;
}

/* 並び替え */
.blog-sort {
	display: flex;
	align-items: center;
	gap: 8px;
}
.blog-sort-label {
	font-size: 13px;
	color: var(--color-sub, #718096);
	white-space: nowrap;
}
.blog-sort-select {
	font-size: 13px;
	padding: 6px 12px;
	border: 1px solid var(--color-border, #E8E8E8);
	border-radius: 6px;
	background: #FFFFFF;
	color: var(--color-body, #4A5568);
	cursor: pointer;
}

/* ── レイアウト（メイン + サイドバー）───── */
.blog-layout {
	display: grid;
	grid-template-columns: 1fr 300px;
	gap: 40px;
	align-items: start;
}

/* ── 記事グリッド ──────────────────────── */
.blog-grid {
	display: grid;
	grid-template-columns: repeat(2, 1fr);
	gap: 24px;
}

/* ── 記事カード ────────────────────────── */
.blog-card {
	background: #FFFFFF;
	border-radius: 12px;
	overflow: hidden;
	border: 1px solid var(--color-border, #E8E8E8);
	transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.blog-card:hover {
	transform: translateY(-2px);
	box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
}
.blog-card-link {
	display: block;
	text-decoration: none;
	color: inherit;
}
.blog-card-img {
	position: relative;
	aspect-ratio: 16 / 9;
	overflow: hidden;
	background: var(--color-bg-alt, #F0F4F8);
}
.blog-card-thumb {
	width: 100%;
	height: 100%;
	object-fit: cover;
	transition: transform 0.3s ease;
}
.blog-card:hover .blog-card-thumb {
	transform: scale(1.03);
}
.blog-card-noimg {
	width: 100%;
	height: 100%;
	display: flex;
	align-items: center;
	justify-content: center;
	color: var(--color-sub, #718096);
}
.blog-card-category {
	position: absolute;
	top: 12px;
	left: 12px;
	padding: 4px 10px;
	border-radius: 4px;
	font-size: 11px;
	font-weight: 600;
	color: #FFFFFF;
	background: var(--color-primary, #2B6CB0);
}
.blog-card-body {
	padding: 16px 20px 20px;
}
.blog-card-title {
	font-family: var(--font-family-heading, 'Space Grotesk', sans-serif);
	font-size: 16px;
	font-weight: 700;
	color: var(--color-heading, #2D3748);
	line-height: 1.5;
	margin: 0 0 8px;
	display: -webkit-box;
	-webkit-line-clamp: 2;
	-webkit-box-orient: vertical;
	overflow: hidden;
}
.blog-card-excerpt {
	font-size: 13px;
	color: var(--color-sub, #718096);
	line-height: 1.7;
	margin: 0 0 12px;
	display: -webkit-box;
	-webkit-line-clamp: 2;
	-webkit-box-orient: vertical;
	overflow: hidden;
}
.blog-card-meta {
	display: flex;
	align-items: center;
	gap: 12px;
}
.blog-card-date {
	font-size: 12px;
	color: var(--color-sub, #718096);
}

/* ── インフィード広告 ─────────────────── */
.blog-ad-infeed {
	grid-column: 1 / -1;
}
.blog-ad-slot {
	background: #FAFAFA;
	border: 1px dashed var(--color-border, #E8E8E8);
	border-radius: 8px;
	padding: 16px;
	text-align: center;
	min-height: 100px;
	display: flex;
	flex-direction: column;
	align-items: center;
	justify-content: center;
}
.blog-ad-label {
	font-size: 10px;
	color: var(--color-sub, #718096);
	text-transform: uppercase;
	letter-spacing: 1px;
	margin-bottom: 8px;
}

/* ── ページネーション ──────────────────── */
.blog-pagination {
	margin-top: 48px;
	text-align: center;
}
.blog-pagination .page-numbers {
	list-style: none;
	display: flex;
	justify-content: center;
	gap: 6px;
	padding: 0;
	margin: 0;
}
.blog-pagination .page-numbers li {
	margin: 0;
}
.blog-pagination .page-numbers a,
.blog-pagination .page-numbers span {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	min-width: 40px;
	height: 40px;
	padding: 0 12px;
	border-radius: 8px;
	font-size: 14px;
	font-weight: 500;
	color: var(--color-body, #4A5568);
	background: #FFFFFF;
	border: 1px solid var(--color-border, #E8E8E8);
	text-decoration: none;
	transition: all 0.2s ease;
}
.blog-pagination .page-numbers a:hover {
	border-color: var(--color-primary, #2B6CB0);
	color: var(--color-primary, #2B6CB0);
}
.blog-pagination .page-numbers .current {
	background: var(--color-primary, #2B6CB0);
	color: #FFFFFF;
	border-color: var(--color-primary, #2B6CB0);
}

/* 空状態 */
.blog-empty {
	padding: 64px 0;
	text-align: center;
	color: var(--color-sub, #718096);
}

/* ── サイドバー ────────────────────────── */
.blog-sidebar {
	position: sticky;
	top: 100px;
}
.sidebar-widget {
	margin-bottom: 28px;
}
.sidebar-widget-title {
	font-family: var(--font-family-heading, 'Space Grotesk', sans-serif);
	font-size: 15px;
	font-weight: 700;
	color: var(--color-heading, #2D3748);
	padding-bottom: 8px;
	border-bottom: 2px solid var(--color-primary, #2B6CB0);
	margin: 0 0 16px;
}

/* 検索ボックス */
.sidebar-search-form {
	display: flex;
	border: 1px solid var(--color-border, #E8E8E8);
	border-radius: 8px;
	overflow: hidden;
	background: #FFFFFF;
}
.sidebar-search-input {
	flex: 1;
	padding: 10px 14px;
	border: none;
	font-size: 14px;
	color: var(--color-body, #4A5568);
	outline: none;
	background: transparent;
}
.sidebar-search-input::placeholder {
	color: var(--color-sub, #718096);
}
.sidebar-search-btn {
	padding: 10px 14px;
	border: none;
	background: transparent;
	color: var(--color-sub, #718096);
	cursor: pointer;
	transition: color 0.2s ease;
}
.sidebar-search-btn:hover {
	color: var(--color-primary, #2B6CB0);
}

/* 人気記事 */
.sidebar-popular-list {
	list-style: none;
	margin: 0;
	padding: 0;
	counter-reset: none;
}
.sidebar-popular-item {
	margin-bottom: 12px;
}
.sidebar-popular-link {
	display: flex;
	gap: 12px;
	text-decoration: none;
	color: inherit;
	align-items: flex-start;
}
.sidebar-popular-rank {
	flex-shrink: 0;
	width: 24px;
	height: 24px;
	display: flex;
	align-items: center;
	justify-content: center;
	border-radius: 4px;
	font-size: 12px;
	font-weight: 700;
	color: #FFFFFF;
	background: var(--color-sub, #718096);
}
.sidebar-popular-rank[data-rank="1"] { background: #D4A017; }
.sidebar-popular-rank[data-rank="2"] { background: #8A8A8A; }
.sidebar-popular-rank[data-rank="3"] { background: #B87333; }
.sidebar-popular-thumb {
	width: 60px;
	height: 60px;
	border-radius: 6px;
	object-fit: cover;
	flex-shrink: 0;
}
.sidebar-popular-info {
	flex: 1;
	min-width: 0;
}
.sidebar-popular-title {
	font-size: 13px;
	font-weight: 600;
	color: var(--color-heading, #2D3748);
	line-height: 1.4;
	display: -webkit-box;
	-webkit-line-clamp: 2;
	-webkit-box-orient: vertical;
	overflow: hidden;
}
.sidebar-popular-link:hover .sidebar-popular-title {
	color: var(--color-primary, #2B6CB0);
}
.sidebar-popular-date {
	font-size: 11px;
	color: var(--color-sub, #718096);
}

/* おすすめ記事 */
.sidebar-recommend-list {
	list-style: none;
	margin: 0;
	padding: 0;
}
.sidebar-recommend-item {
	margin-bottom: 10px;
}
.sidebar-recommend-link {
	display: flex;
	gap: 10px;
	align-items: flex-start;
	text-decoration: none;
	color: inherit;
	padding: 8px;
	border-radius: 6px;
	transition: background 0.2s ease;
}
.sidebar-recommend-link:hover {
	background: var(--color-bg-alt, #F0F4F8);
}
.sidebar-recommend-thumb {
	width: 56px;
	height: 56px;
	border-radius: 6px;
	object-fit: cover;
	flex-shrink: 0;
}
.sidebar-recommend-title {
	font-size: 13px;
	font-weight: 600;
	color: var(--color-heading, #2D3748);
	line-height: 1.4;
	display: -webkit-box;
	-webkit-line-clamp: 3;
	-webkit-box-orient: vertical;
	overflow: hidden;
}
.sidebar-recommend-link:hover .sidebar-recommend-title {
	color: var(--color-primary, #2B6CB0);
}

/* カテゴリ一覧 */
.sidebar-category-list {
	list-style: none;
	margin: 0;
	padding: 0;
}
.sidebar-category-list li {
	border-bottom: 1px solid var(--color-border, #E8E8E8);
}
.sidebar-category-list a {
	display: flex;
	justify-content: space-between;
	align-items: center;
	padding: 10px 0;
	font-size: 14px;
	color: var(--color-body, #4A5568);
	text-decoration: none;
	transition: color 0.2s ease;
}
.sidebar-category-list a:hover {
	color: var(--color-primary, #2B6CB0);
}
.sidebar-category-count {
	font-size: 12px;
	color: var(--color-sub, #718096);
	background: var(--color-bg-alt, #F0F4F8);
	padding: 2px 8px;
	border-radius: 10px;
}

/* タグクラウド */
.sidebar-tag-cloud {
	display: flex;
	flex-wrap: wrap;
	gap: 6px;
}
.sidebar-tag {
	display: inline-block;
	padding: 4px 10px;
	border-radius: 4px;
	font-size: 12px;
	color: var(--color-body, #4A5568);
	background: var(--color-bg-alt, #F0F4F8);
	text-decoration: none;
	transition: all 0.2s ease;
}
.sidebar-tag:hover {
	background: var(--color-primary, #2B6CB0);
	color: #FFFFFF;
}

/* 広告スロット（サイドバー内） */
.sidebar-ad .blog-ad-slot {
	min-height: 250px;
}
.sidebar-ad-sticky {
	position: sticky;
	top: 100px;
}

/* CTA */
.sidebar-cta-inner {
	background: linear-gradient(135deg, #1a365d 0%, #2B6CB0 100%);
	border-radius: 12px;
	padding: 24px;
	color: #FFFFFF;
}
.sidebar-cta-label {
	font-size: 11px;
	text-transform: uppercase;
	letter-spacing: 2px;
	opacity: 0.7;
	margin: 0 0 8px;
}
.sidebar-cta-title {
	font-family: var(--font-family-heading, 'Space Grotesk', sans-serif);
	font-size: 18px;
	font-weight: 700;
	color: #FFFFFF;
	margin: 0 0 8px;
}
.sidebar-cta-text {
	font-size: 13px;
	line-height: 1.6;
	opacity: 0.9;
	margin: 0 0 16px;
}
.sidebar-cta-btn {
	display: inline-block;
	padding: 8px 20px;
	border-radius: 6px;
	font-size: 13px;
	font-weight: 600;
	color: #1a365d;
	background: #FFFFFF;
	text-decoration: none;
	transition: all 0.2s ease;
}
.sidebar-cta-btn:hover {
	background: #F0F4F8;
}

/* ── 検索バー ──────────────────────────── */
.blog-search {
	max-width: 600px;
	margin: 0 auto 28px;
}
.blog-search-form {
	display: flex;
	border: 2px solid var(--color-border, #E2E8F0);
	border-radius: 10px;
	overflow: hidden;
	background: #FFFFFF;
	transition: border-color 0.2s;
}
.blog-search-form:focus-within {
	border-color: var(--color-primary, #2B6CB0);
}
.blog-search-input {
	flex: 1;
	padding: 11px 18px;
	border: none;
	font-size: 15px;
	color: var(--color-body, #4A5568);
	outline: none;
	background: transparent;
}
.blog-search-input::placeholder {
	color: var(--color-sub, #718096);
}
.blog-search-btn {
	padding: 0 16px;
	border: none;
	background: transparent;
	color: var(--color-sub, #718096);
	cursor: pointer;
	transition: color 0.2s;
}
.blog-search-btn:hover {
	color: var(--color-primary, #2B6CB0);
}

/* ── 表示切替 + 並び替えコントロール ──── */
.blog-controls {
	display: flex;
	align-items: center;
	gap: 12px;
	flex-shrink: 0;
}
.blog-view-toggle {
	display: flex;
	gap: 2px;
	background: var(--color-bg-gray, #F0F0F0);
	border-radius: 8px;
	padding: 2px;
}
.blog-view-btn {
	display: flex;
	align-items: center;
	gap: 6px;
	padding: 6px 14px;
	border: none;
	border-radius: 6px;
	background: transparent;
	cursor: pointer;
	color: var(--color-sub, #718096);
	font-size: 13px;
	font-weight: 500;
	transition: all 0.2s;
	white-space: nowrap;
}
.blog-view-btn:hover {
	color: var(--color-heading, #2D3748);
}
.blog-view-btn.is-active {
	background: #FFFFFF;
	color: var(--color-heading, #2D3748);
	box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}
.blog-view-btn svg {
	flex-shrink: 0;
}

/* ── 一覧表示テーブル ───────────────────── */
.blog-list {
	display: none;
}
.blog-list-table {
	width: 100%;
	border-collapse: collapse;
	border: 1px solid var(--color-border, #E2E8F0);
}
.blog-list-table th {
	font-size: 12px;
	color: var(--color-sub, #718096);
	text-transform: uppercase;
	letter-spacing: 0.5px;
	padding: 8px 12px;
	border-bottom: 2px solid var(--color-border, #E2E8F0);
	text-align: left;
	font-weight: 600;
	white-space: nowrap;
	user-select: none;
	position: relative;
}
.blog-list-table th:hover {
	background: var(--color-bg-light, #F8FAFC);
}
/* ソートアイコン（tpl-sort-icon と共通スタイル） */
.blog-list-table .tpl-sort-icon {
	display: inline-block;
	margin-left: 4px;
	font-size: 10px;
	color: var(--color-sub, #718096);
	vertical-align: middle;
}
.blog-list-table th.sort-asc .tpl-sort-icon::after  { content: '▲'; }
.blog-list-table th.sort-desc .tpl-sort-icon::after { content: '▼'; }
.blog-list-table th:not(.sort-asc):not(.sort-desc) .tpl-sort-icon::after { content: '⇅'; opacity: 0.4; }
.blog-list-table td {
	padding: 10px 12px;
	border-bottom: 1px solid var(--color-bg-gray, #F0F0F0);
	font-size: 14px;
	color: var(--color-body, #4A5568);
}
.blog-list-table tr:last-child td {
	border-bottom: none;
}
.blog-list-table tr:hover td {
	background: var(--color-bg-light, #F8FAFC);
}
.blog-list-table a {
	color: var(--color-heading, #2D3748);
	text-decoration: none;
	font-weight: 600;
}
.blog-list-table a:hover {
	color: var(--color-primary, #2B6CB0);
}
.blog-list-cat {
	font-size: 11px;
	font-weight: 600;
	padding: 2px 8px;
	border-radius: 4px;
	background: var(--color-bg-alt, #F0F4F8);
	color: var(--color-body, #4A5568);
	white-space: nowrap;
}

/* ── レスポンシブ ──────────────────────── */
@media (max-width: 1024px) {
	.blog-layout {
		grid-template-columns: 1fr;
	}
	.blog-sidebar {
		position: static;
		display: grid;
		grid-template-columns: repeat(2, 1fr);
		gap: 24px;
	}
	.sidebar-ad-sticky {
		position: static;
	}
}

@media (max-width: 768px) {
	.blog-grid {
		grid-template-columns: 1fr;
	}
	.blog-filters {
		flex-direction: column;
		align-items: flex-start;
	}
	.blog-controls {
		width: 100%;
		justify-content: space-between;
	}
	.blog-list-table th:nth-child(2),
	.blog-list-table td:nth-child(2) {
		display: none;
	}
	.blog-category-tabs {
		overflow-x: auto;
		flex-wrap: nowrap;
		-webkit-overflow-scrolling: touch;
		padding-bottom: 4px;
		max-width: 100%;
	}
	.blog-header {
		flex-direction: column;
		align-items: flex-start;
		gap: 12px;
	}
	.blog-header-search {
		width: 100%;
	}
	.blog-title {
		font-size: 24px;
	}
	.blog-sidebar {
		grid-template-columns: 1fr;
	}
}