/* ==========================================================================
   /column/ アーカイブ・個別投稿スタイル

   - .page-column        : archive.php の <main>
   - .page-column-single : single.php の <main>

   front-page.css の B-8 セクション (.columns-grid / .column-card / .column-icon)
   と命名が衝突するため、すべて .page-column / .page-column-single でスコープ
   して隔離する。フロントトップに影響しないこと。

   HIN-116: /menu/ ページと同じ高級感トーン（Shippori Mincho B1 +
   Cormorant Garamond + JetBrains Mono、深緑 #173a33 × ゴールド #c8a96a ×
   白基調）に揃えた誌面風デザインへリウォーク。連載番号などの追加情報は
   付けず、純粋なタイポ・配色・反応の磨き込みに留める。
   ========================================================================== */

/* ---------- スコープトークン ---------- */
.page-column,
.page-column-single {
	--col-color-main-dark:   #173a33;
	--col-color-accent:      #c8a96a;
	--col-color-accent-soft: #a88a4f;
	--col-color-bg:          #ffffff;
	--col-color-bg-tint:     #faf8f3;
	--col-color-text:        #262626;
	--col-color-muted:       #6f6f6f;

	--col-rule-light:        rgba(23, 58, 51, 0.12);
	--col-rule-soft:         rgba(23, 58, 51, 0.16);

	--col-font-mincho:       var(--font-main);
	--col-font-en:           var(--font-en);
	--col-font-mono:         var(--font-mono);

	--col-radius: 2px;

	color: var(--col-color-text);
	font-family: var(--col-font-mincho);
	font-weight: 400;
	font-feature-settings: 'palt' 1;
	line-height: 1.85;
}

/* ---------- 共通: eyebrow（/menu/ と同じ細罫 + JetBrains Mono） ---------- */
/* base.css の .eyebrow を /column/ スコープ内で上書き。 */
.page-column .eyebrow,
.page-column-single .eyebrow {
	display: inline-flex;
	align-items: center;
	gap: 12px;
	font-family: var(--col-font-mono);
	font-style: normal;
	font-weight: 400;
	font-size: 10px;
	letter-spacing: 0.28em;
	color: var(--col-color-accent-soft);
	text-transform: uppercase;
	margin: 0 0 18px;
}
.page-column .eyebrow::before,
.page-column-single .eyebrow::before {
	content: '';
	display: inline-block;
	flex-shrink: 0;
	width: 32px;
	height: 1px;
	background: var(--col-color-accent-soft);
}
.page-column .eyebrow::after,
.page-column-single .eyebrow::after {
	content: none;
}

/* ---------- 共通 Hero ---------- */
.column-archive-hero,
.column-single-hero {
	padding: clamp(80px, 12vw, 140px) 0 clamp(36px, 5vw, 64px);
	background: var(--col-color-bg);
}

.column-archive-hero h1,
.column-single-hero .column-single-title {
	font-family: var(--col-font-mincho);
	font-weight: 500;
	font-size: clamp(30px, 4.6vw, 46px);
	letter-spacing: 0.04em;
	line-height: 1.45;
	color: var(--col-color-main-dark);
	margin: 0 0 18px;
}

.column-archive-hero .lead {
	font-family: var(--col-font-mincho);
	/* HIN-170: 本文サイズ +20% (clamp(14,1.5vw,16) → clamp(17,1.8vw,19)) */
	font-size: clamp(17px, 1.8vw, 19px);
	line-height: 1.95;
	color: var(--col-color-muted);
	margin: 0;
	max-width: 640px;
}

/* ---------- Archive: 一覧 ---------- */
.page-column .column-archive-section {
	padding-top: clamp(32px, 4vw, 56px);
	padding-bottom: clamp(72px, 10vw, 120px);
	background: var(--col-color-bg);
}

.page-column .container {
	max-width: 880px;
}

.page-column .column-list {
	display: grid;
	grid-template-columns: 1fr;
	gap: clamp(22px, 2.6vw, 32px);
}

/* スコープ指定で front-page.css の .column-card を上書きしない */
.page-column .column-card {
	background: var(--col-color-bg);
	border: 1px solid var(--col-rule-light);
	border-radius: var(--col-radius);
	overflow: hidden;
	transition: border-color 280ms ease;
}

.page-column .column-card:hover,
.page-column .column-card:focus-within {
	border-color: var(--col-color-accent);
}

.page-column .column-card-link {
	display: grid;
	grid-template-columns: 240px 1fr;
	gap: clamp(20px, 2.4vw, 28px);
	align-items: stretch;
	text-decoration: none;
	color: inherit;
}

.page-column .column-card-thumb {
	position: relative;
	overflow: hidden;
	background: var(--col-color-bg-tint);
}

.page-column .column-card-thumb img {
	width: 100%;
	height: 100%;
	object-fit: cover;
	display: block;
	aspect-ratio: 5 / 4;
	transition: transform 600ms cubic-bezier(0.16, 0.6, 0.2, 1);
}

/* 深緑→透明の縦グラデを薄く重ねて、写真のトーンを揃える */
.page-column .column-card-thumb::after {
	content: '';
	position: absolute;
	inset: 0;
	background: linear-gradient(180deg, rgba(23, 58, 51, 0.18) 0%, rgba(23, 58, 51, 0) 60%);
	pointer-events: none;
	transition: opacity 320ms ease;
	opacity: 0.6;
}

.page-column .column-card:hover .column-card-thumb img,
.page-column .column-card:focus-within .column-card-thumb img {
	transform: scale(1.03);
}

.page-column .column-card:hover .column-card-thumb::after,
.page-column .column-card:focus-within .column-card-thumb::after {
	opacity: 0.35;
}

.page-column .column-card-body {
	padding: clamp(18px, 2.2vw, 24px) clamp(18px, 2.2vw, 24px) clamp(18px, 2.2vw, 24px) 0;
	display: flex;
	flex-direction: column;
	justify-content: center;
}

.page-column .column-card-date {
	display: block;
	font-family: var(--col-font-en);
	font-style: italic;
	font-weight: 400;
	font-size: 14px;
	letter-spacing: 0.06em;
	color: var(--col-color-accent-soft);
	margin: 0 0 10px;
}

.page-column .column-card-title {
	font-family: var(--col-font-mincho);
	font-weight: 500;
	font-size: clamp(17px, 1.9vw, 20px);
	letter-spacing: 0.02em;
	line-height: 1.55;
	color: var(--col-color-main-dark);
	margin: 0 0 10px;
}

.page-column .column-card-excerpt {
	font-family: var(--col-font-mincho);
	/* HIN-170: 本文サイズ +21% (14 → 17) */
	font-size: 17px;
	line-height: 1.85;
	color: var(--col-color-muted);
	margin: 0;
}

/* ---------- Archive: ページネーション ---------- */
.page-column .pagination,
.page-column .nav-links {
	display: flex;
	flex-wrap: wrap;
	justify-content: center;
	gap: 6px;
	margin-top: clamp(48px, 6vw, 72px);
}

.page-column .page-numbers {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	min-width: 40px;
	height: 40px;
	padding: 0 14px;
	border: 1px solid transparent;
	border-radius: var(--col-radius);
	background: transparent;
	color: var(--col-color-main-dark);
	text-decoration: none;
	font-family: var(--col-font-en);
	font-size: 16px;
	letter-spacing: 0.04em;
	transition: color 220ms ease, border-color 220ms ease;
}

.page-column .page-numbers:hover {
	color: var(--col-color-accent-soft);
}

.page-column .page-numbers.current {
	color: var(--col-color-main-dark);
	border-bottom: 1px solid var(--col-color-accent);
	border-radius: 0;
	padding-bottom: 0;
	height: 39px;
}

.page-column .page-numbers.dots {
	color: var(--col-color-muted);
}

.page-column .page-numbers.prev,
.page-column .page-numbers.next {
	font-family: var(--col-font-mincho);
	font-size: 13px;
	letter-spacing: 0.08em;
	color: var(--col-color-muted);
}

.page-column .page-numbers.prev:hover,
.page-column .page-numbers.next:hover {
	color: var(--col-color-main-dark);
}

/* ---------- Archive: 空状態 ---------- */
.page-column .column-empty {
	text-align: center;
	color: var(--col-color-muted);
	padding: clamp(48px, 7vw, 96px) 0;
	font-family: var(--col-font-mincho);
	/* HIN-170: 本文サイズ +20% (15 → 18) */
	font-size: 18px;
	letter-spacing: 0.04em;
}

/* ---------- Single: 共通レイアウト ---------- */
.page-column-single .container {
	max-width: 760px;
}

.column-single-date {
	display: block;
	font-family: var(--col-font-en);
	font-style: italic;
	font-weight: 400;
	font-size: 15px;
	letter-spacing: 0.08em;
	color: var(--col-color-accent-soft);
	margin: 0 0 14px;
}

/* Single: アイキャッチ */
.column-single-thumb-section {
	padding-top: 0;
	padding-bottom: clamp(28px, 4vw, 44px);
}

.column-single-thumb {
	margin: 0;
	border-radius: var(--col-radius);
	overflow: hidden;
}

.column-single-thumb img {
	width: 100%;
	height: auto;
	display: block;
}

/* Single: 本文 */
.column-single-body-section {
	padding-top: clamp(24px, 3vw, 40px);
	padding-bottom: clamp(56px, 8vw, 96px);
}

.column-single-body {
	font-family: var(--col-font-mincho);
	/* HIN-170: 本文サイズ +19% (16 → 19) */
	font-size: 19px;
	line-height: 1.95;
	color: var(--col-color-text);
	font-feature-settings: 'palt' 1;
}

.column-single-body h2 {
	font-family: var(--col-font-mincho);
	font-weight: 500;
	font-size: clamp(22px, 2.6vw, 28px);
	letter-spacing: 0.04em;
	line-height: 1.5;
	color: var(--col-color-main-dark);
	margin: clamp(48px, 5vw, 64px) 0 clamp(18px, 2.4vw, 26px);
	padding: 0 0 14px;
	border-bottom: 1px solid var(--col-color-accent);
}

.column-single-body h3 {
	font-family: var(--col-font-mincho);
	font-weight: 500;
	font-size: clamp(18px, 2.1vw, 21px);
	letter-spacing: 0.03em;
	line-height: 1.55;
	color: var(--col-color-main-dark);
	margin: clamp(32px, 3.6vw, 42px) 0 clamp(14px, 1.8vw, 18px);
	padding-left: 14px;
	border-left: 2px solid var(--col-color-accent);
}

.column-single-body p {
	margin: 0 0 1.4em;
}

.column-single-body ul,
.column-single-body ol {
	margin: 0 0 1.6em;
	padding-left: 1.6em;
}

.column-single-body li {
	margin-bottom: 0.4em;
}

.column-single-body blockquote {
	margin: 1.8em 0;
	padding: 1.2em 1.6em;
	background: var(--col-color-bg-tint);
	border-left: 1px solid var(--col-color-accent);
	color: var(--col-color-muted);
	font-style: normal;
	letter-spacing: 0.02em;
}

.column-single-body blockquote p:last-child {
	margin-bottom: 0;
}

.column-single-body img {
	max-width: 100%;
	height: auto;
	display: block;
	margin: 1.8em auto;
	border-radius: var(--col-radius);
}

.column-single-body a {
	color: var(--col-color-main-dark);
	text-decoration: none;
	border-bottom: 1px solid var(--col-color-accent);
	padding-bottom: 1px;
	transition: color 220ms ease, border-color 220ms ease;
}

.column-single-body a:hover {
	color: var(--col-color-accent-soft);
	border-bottom-color: var(--col-color-accent-soft);
}

.column-single-body figure {
	margin: 1.8em 0;
}

.column-single-body figcaption {
	text-align: center;
	font-family: var(--col-font-mincho);
	font-size: 13px;
	color: var(--col-color-muted);
	letter-spacing: 0.04em;
	margin-top: 8px;
}

/* Single: CTA */
.column-single-cta {
	margin-top: 0;
}

/* Single: 一覧へ戻る（/menu/ の .btn と同じトーン） */
.column-single-back-section {
	padding-top: clamp(36px, 4.5vw, 56px);
	padding-bottom: clamp(72px, 10vw, 120px);
}

.column-single-back {
	text-align: center;
	margin: 0;
}

.column-single-back a {
	display: inline-flex;
	align-items: center;
	gap: 12px;
	padding: 14px 32px;
	border: 1px solid var(--col-color-main-dark);
	border-radius: var(--col-radius);
	background: transparent;
	color: var(--col-color-main-dark);
	font-family: var(--col-font-mincho);
	font-weight: 400;
	font-size: 14px;
	letter-spacing: 0.16em;
	text-decoration: none;
	transition: background 220ms ease, color 220ms ease, border-color 220ms ease;
}

.column-single-back a:hover,
.column-single-back a:focus-visible {
	background: var(--col-color-main-dark);
	color: #fff;
	outline: none;
}

/* ==========================================================================
   レスポンシブ
   ========================================================================== */

/* タブレット (960px 以下) */
@media (max-width: 960px) {
	.page-column .column-card-link {
		grid-template-columns: 200px 1fr;
	}
}

/* モバイル (640px 以下) */
@media (max-width: 640px) {
	.page-column .column-card-link {
		grid-template-columns: 1fr;
	}

	.page-column .column-card-thumb img {
		aspect-ratio: 16 / 9;
	}

	.page-column .column-card-body {
		padding: 0 clamp(16px, 4.6vw, 20px) clamp(18px, 5vw, 22px);
	}

	.page-column .column-card-title {
		font-size: 17px;
	}

	.column-archive-hero h1,
	.column-single-hero .column-single-title {
		font-size: clamp(24px, 7vw, 30px);
	}

	.column-single-body {
		/* HIN-170: 本文サイズ +20% (15 → 18) */
		font-size: 18px;
		line-height: 1.9;
	}

	.column-single-body h2 {
		font-size: 20px;
	}

	.column-single-body h3 {
		font-size: 18px;
	}
}

/* prefers-reduced-motion: 動きを最小化 */
@media (prefers-reduced-motion: reduce) {
	.page-column .column-card,
	.page-column .column-card-thumb img,
	.page-column .column-card-thumb::after,
	.page-column .page-numbers,
	.column-single-body a,
	.column-single-back a {
		transition: none;
	}

	.page-column .column-card:hover .column-card-thumb img,
	.page-column .column-card:focus-within .column-card-thumb img {
		transform: none;
	}
}