/* ==========================================================================
   MASTER CHILD — Blog UI
   Archive 카드, Single Post, TOC, Related Posts, CTA.
   design-system.css 변수 참조. 모바일 우선.
   ========================================================================== */


/* --------------------------------------------------------------------------
   1. ARCHIVE CARD — 매거진 스타일 카드
   GP 구조: .inside-article > .entry-header + .post-image + .entry-summary
   flex order로 이미지를 카드 상단에 배치.
   -------------------------------------------------------------------------- */
.blog .inside-article,
.archive .inside-article,
.search-results .inside-article {
	display: flex;
	flex-direction: column;
	height: 100%;
}

/* 이미지가 DOM 상 헤더 뒤에 있으므로 flex order로 시각적 순서 조정 */
.blog .post-image,
.archive .post-image,
.search-results .post-image {
	order: -1; /* 카드 최상단 */
}

.blog .entry-header,
.archive .entry-header,
.search-results .entry-header {
	order: 1;
	padding: var(--space-5) var(--space-5) 0;
}

.blog .entry-summary,
.archive .entry-summary,
.search-results .entry-summary {
	order: 2;
	padding: 0 var(--space-5) var(--space-5);
	flex: 1; /* 카드 높이 통일 */
}

/* Featured Image */
.blog .post-image,
.archive .post-image,
.search-results .post-image {
	overflow: hidden;
	border-radius: var(--radius-xl) var(--radius-xl) 0 0;
	background-color: var(--color-bg-muted);
	line-height: 0;
}

.blog .post-image a,
.archive .post-image a,
.search-results .post-image a {
	display: block;
	overflow: hidden;
}

.blog .post-image img,
.archive .post-image img,
.search-results .post-image img {
	width: 100%;
	aspect-ratio: 16 / 9;
	object-fit: cover;
	display: block;
	transition: transform var(--duration-slower) var(--ease-out);
}

/* Image thumbnail placeholder (이미지 없는 경우) */
.blog .entry:not(:has(.post-image)),
.archive .entry:not(:has(.post-image)) {
	border-top: 4px solid var(--color-primary-500);
}

/* --------------------------------------------------------------------------
   2. CARD HOVER EFFECT
   -------------------------------------------------------------------------- */
.blog .entry:hover .post-image img,
.archive .entry:hover .post-image img,
.search-results .entry:hover .post-image img {
	transform: scale(1.05);
}

/* 제목 링크 hover */
.blog .entry-title a,
.archive .entry-title a {
	color: var(--color-text);
	text-decoration: none;
	background-image: linear-gradient(var(--color-primary-600), var(--color-primary-600));
	background-size: 0% 2px;
	background-repeat: no-repeat;
	background-position: 0 100%;
	transition: background-size var(--duration-slow) var(--ease-out),
	            color var(--duration-base) var(--ease-in-out);
	padding-bottom: 1px;
}

.blog .entry:hover .entry-title a,
.archive .entry:hover .entry-title a {
	color: var(--color-primary-700);
	background-size: 100% 2px;
}

/* --------------------------------------------------------------------------
   3. CATEGORY BADGE
   --badge-color 인라인 변수로 카테고리별 색상 적용.
   -------------------------------------------------------------------------- */
.mc-card-meta-top {
	margin-bottom: var(--space-2);
}

.mc-category-badge {
	display: inline-flex;
	align-items: center;
	gap: var(--space-1);
	font-size: var(--text-xs);
	font-weight: var(--font-bold);
	letter-spacing: var(--tracking-wide);
	text-transform: uppercase;
	text-decoration: none;
	padding: var(--space-1) var(--space-3);
	border-radius: var(--radius-full);
	background-color: color-mix(in srgb, var(--badge-color, var(--color-primary-600)) 12%, transparent);
	color: var(--badge-color, var(--color-primary-600));
	border: 1px solid color-mix(in srgb, var(--badge-color, var(--color-primary-600)) 25%, transparent);
	transition: background-color var(--duration-base) var(--ease-in-out);
}

.mc-category-badge:hover {
	background-color: color-mix(in srgb, var(--badge-color, var(--color-primary-600)) 22%, transparent);
	color: var(--badge-color, var(--color-primary-600));
}

/* color-mix 미지원 브라우저 폴백 */
@supports not (background-color: color-mix(in srgb, red 10%, transparent)) {
	.mc-category-badge {
		background-color: var(--color-primary-50);
		color: var(--color-primary-700);
		border-color: var(--color-primary-200);
	}
}

/* --------------------------------------------------------------------------
   4. CARD META (date, author, read time)
   -------------------------------------------------------------------------- */
.blog .entry-meta,
.archive .entry-meta {
	font-size: var(--text-xs);
	color: var(--color-text-muted);
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	gap: var(--space-1) var(--space-3);
	margin-bottom: var(--space-2);
}

.blog .entry-meta a,
.archive .entry-meta a {
	color: inherit;
	text-decoration: none;
}

.blog .entry-meta a:hover,
.archive .entry-meta a:hover {
	color: var(--color-primary-600);
}

/* Read Time 배지 */
.mc-card-extra-meta {
	display: flex;
	align-items: center;
	gap: var(--space-3);
	margin-bottom: var(--space-3);
}

.mc-read-time {
	display: inline-flex;
	align-items: center;
	gap: var(--space-1);
	font-size: var(--text-xs);
	color: var(--color-text-subtle);
	font-weight: var(--font-medium);
}

/* --------------------------------------------------------------------------
   5. CARD TITLE
   -------------------------------------------------------------------------- */
.blog .entry-title,
.archive .entry-title {
	font-size: var(--text-lg);
	font-weight: var(--font-bold);
	line-height: var(--leading-snug);
	margin-bottom: var(--space-2);
	letter-spacing: var(--tracking-tight);
}

@media (min-width: 1024px) {
	.blog .entry-title,
	.archive .entry-title {
		font-size: var(--text-xl);
	}
}

/* --------------------------------------------------------------------------
   6. CARD EXCERPT
   -------------------------------------------------------------------------- */
.blog .entry-summary p,
.archive .entry-summary p {
	font-size: var(--text-sm);
	color: var(--color-text-muted);
	line-height: var(--leading-relaxed);
	display: -webkit-box;
	-webkit-line-clamp: 3;
	-webkit-box-orient: vertical;
	overflow: hidden;
	margin-bottom: var(--space-4);
}

/* Read More */
.blog .more-link,
.archive .more-link {
	display: inline-flex;
	align-items: center;
	gap: var(--space-1-5);
	font-size: var(--text-sm);
	font-weight: var(--font-semibold);
	color: var(--color-primary-600);
	text-decoration: none;
	transition: gap var(--duration-base) var(--ease-out),
	            color var(--duration-base) var(--ease-in-out);
}

.blog .more-link::after,
.archive .more-link::after {
	content: '→';
	transition: transform var(--duration-base) var(--ease-out);
	display: inline-block;
}

.blog .entry:hover .more-link::after,
.archive .entry:hover .more-link::after {
	transform: translateX(4px);
}

.blog .more-link:hover,
.archive .more-link:hover {
	color: var(--color-primary-800);
}

/* --------------------------------------------------------------------------
   7. SINGLE POST — 본문 폭 최적화
   읽기에 최적화된 65ch 너비 (약 650px)
   -------------------------------------------------------------------------- */
.single-post .entry-content {
	font-size: var(--text-lg);
	line-height: var(--leading-loose);
	color: var(--color-neutral-800);
	max-width: 68ch;
}

.single-post .entry-content > * {
	margin-bottom: var(--space-6);
}

.single-post .entry-content > *:last-child {
	margin-bottom: 0;
}

/* 본문 이미지는 full-width 허용 */
.single-post .entry-content img,
.single-post .entry-content figure,
.single-post .entry-content .wp-block-image {
	max-width: 100%;
}

/* Single 제목 */
.single-post .entry-title {
	font-size: var(--text-3xl);
	font-weight: var(--font-extrabold);
	line-height: var(--leading-tight);
	letter-spacing: var(--tracking-tight);
	margin-bottom: var(--space-4);
}

@media (min-width: 768px) {
	.single-post .entry-title { font-size: var(--text-4xl); }
}

/* Single 헤더 (제목 + 메타 영역) */
.single-post .entry-header {
	margin-bottom: var(--space-8);
	padding-bottom: var(--space-6);
	border-bottom: 1px solid var(--color-border);
}

.single-post .entry-meta {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	gap: var(--space-1) var(--space-4);
	font-size: var(--text-sm);
	color: var(--color-text-muted);
	margin-top: var(--space-4);
}

.single-post .entry-meta a {
	color: inherit;
	text-decoration: none;
}

.single-post .entry-meta a:hover { color: var(--color-primary-600); }

/* Featured Image (single) */
.single-post .post-image,
.single-post .featured-image {
	border-radius: var(--radius-xl);
	overflow: hidden;
	margin-bottom: var(--space-8);
	box-shadow: var(--shadow-md);
}

.single-post .post-image img,
.single-post .featured-image img {
	width: 100%;
	aspect-ratio: 16 / 9;
	object-fit: cover;
	display: block;
}


/* --------------------------------------------------------------------------
   9. TOC (Table of Contents)
   .the_content 필터로 content 앞에 주입됨.
   -------------------------------------------------------------------------- */
.mc-toc {
	background-color: var(--color-bg-subtle);
	border: 1px solid var(--color-border);
	border-left: 4px solid var(--color-primary-500);
	border-radius: var(--radius-lg);
	margin-bottom: var(--space-8);
	font-size: var(--text-sm);
}

.mc-toc__inner {
	padding: var(--space-4) var(--space-5);
}

.mc-toc__toggle {
	display: flex;
	align-items: center;
	justify-content: space-between;
	width: 100%;
	background: none;
	border: none;
	padding: 0;
	cursor: pointer;
	font-family: var(--font-sans);
	gap: var(--space-3);
}

.mc-toc__label {
	font-size: var(--text-sm);
	font-weight: var(--font-bold);
	color: var(--color-text);
	letter-spacing: var(--tracking-wide);
	text-transform: uppercase;
}

.mc-toc__chevron {
	color: var(--color-text-muted);
	transition: transform var(--duration-base) var(--ease-out);
	flex-shrink: 0;
}

.mc-toc__toggle[aria-expanded="false"] .mc-toc__chevron {
	transform: rotate(180deg);
}

.mc-toc__list {
	margin: var(--space-3) 0 0 0;
	padding: 0;
	list-style: none;
	counter-reset: toc-counter;
}

.mc-toc__item {
	counter-increment: toc-counter;
	margin-bottom: var(--space-1-5);
}

.mc-toc__item > a {
	display: flex;
	align-items: baseline;
	gap: var(--space-2);
	color: var(--color-neutral-700);
	text-decoration: none;
	line-height: var(--leading-snug);
	transition: color var(--duration-base) var(--ease-in-out);
}

.mc-toc__item > a::before {
	content: counter(toc-counter) ".";
	font-weight: var(--font-semibold);
	color: var(--color-primary-600);
	font-size: var(--text-xs);
	flex-shrink: 0;
	min-width: 1.5rem;
}

.mc-toc__item > a:hover { color: var(--color-primary-700); }

/* H3 들여쓰기 */
.mc-toc__item--sub {
	margin-left: var(--space-5);
	counter-increment: none;
}

.mc-toc__item--sub > a::before { content: none; }

.mc-toc__item--sub > a {
	color: var(--color-text-muted);
	font-size: var(--text-xs);
}

.mc-toc__item--sub > a::before {
	content: '›';
	color: var(--color-neutral-400);
	min-width: auto;
}

/* TOC hidden 상태 */
.mc-toc__list[hidden] { display: none; }


/* --------------------------------------------------------------------------
   10. RELATED POSTS
   -------------------------------------------------------------------------- */
.mc-related {
	margin-top: var(--space-12);
	padding-top: var(--space-10);
	border-top: 2px solid var(--color-border);
}

.mc-related__title {
	font-size: var(--text-xl);
	font-weight: var(--font-bold);
	color: var(--color-text);
	margin-bottom: var(--space-6);
	display: flex;
	align-items: center;
	gap: var(--space-3);
}

.mc-related__title::after {
	content: '';
	flex: 1;
	height: 1px;
	background-color: var(--color-border);
}

.mc-related__grid {
	display: grid;
	grid-template-columns: 1fr;
	gap: var(--space-5);
}

@media (min-width: 640px) {
	.mc-related__grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
	.mc-related__grid { grid-template-columns: repeat(3, 1fr); }
}

.mc-related__card {
	background-color: var(--color-surface);
	border: 1px solid var(--color-border);
	border-radius: var(--radius-xl);
	overflow: hidden;
	transition: box-shadow var(--duration-slow) var(--ease-out),
	            transform var(--duration-slow) var(--ease-out);
}

.mc-related__card:hover {
	box-shadow: var(--shadow-md);
	transform: translateY(-2px);
}

.mc-related__img-wrap {
	display: block;
	overflow: hidden;
}

.mc-related__img {
	width: 100%;
	aspect-ratio: 16 / 9;
	object-fit: cover;
	display: block;
	transition: transform var(--duration-slower) var(--ease-out);
}

.mc-related__card:hover .mc-related__img {
	transform: scale(1.04);
}

.mc-related__body {
	padding: var(--space-4);
}

.mc-related__badge {
	margin-bottom: var(--space-2);
}

.mc-related__post-title {
	font-size: var(--text-base);
	font-weight: var(--font-semibold);
	line-height: var(--leading-snug);
	margin-bottom: var(--space-2);
}

.mc-related__post-title a {
	color: var(--color-text);
	text-decoration: none;
	transition: color var(--duration-base) var(--ease-in-out);
}

.mc-related__post-title a:hover { color: var(--color-primary-600); }

.mc-related__date {
	font-size: var(--text-xs);
	color: var(--color-text-subtle);
	margin: 0;
}


/* --------------------------------------------------------------------------
   11. CTA SECTION
   -------------------------------------------------------------------------- */
.mc-cta {
	display: flex;
	flex-direction: column;
	align-items: center;
	text-align: center;
	gap: var(--space-4);
	margin-top: var(--space-10);
	padding: var(--space-8) var(--space-6);
	background: linear-gradient(135deg, var(--color-primary-50) 0%, var(--color-accent-50) 100%);
	border: 1px solid var(--color-primary-100);
	border-radius: var(--radius-2xl);
}

@media (min-width: 640px) {
	.mc-cta {
		flex-direction: row;
		text-align: left;
		gap: var(--space-6);
	}
}

.mc-cta__icon {
	width: 3.5rem;
	height: 3.5rem;
	display: flex;
	align-items: center;
	justify-content: center;
	background-color: var(--color-primary-100);
	color: var(--color-primary-700);
	border-radius: var(--radius-2xl);
	flex-shrink: 0;
}

.mc-cta__content {
	flex: 1;
}

.mc-cta__title {
	font-size: var(--text-lg);
	font-weight: var(--font-bold);
	color: var(--color-text);
	margin-bottom: var(--space-1);
}

.mc-cta__desc {
	font-size: var(--text-sm);
	color: var(--color-text-muted);
	margin: 0;
}

.mc-cta__btn {
	flex-shrink: 0;
	white-space: nowrap;
}


/* --------------------------------------------------------------------------
   12. SINGLE ENTRY FOOTER (태그, 공유 메타)
   -------------------------------------------------------------------------- */
.single-post .entry-footer {
	margin-top: var(--space-10);
	padding-top: var(--space-6);
	border-top: 1px solid var(--color-border);
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	gap: var(--space-3);
	font-size: var(--text-sm);
	color: var(--color-text-muted);
}

/* 태그 링크 */
.single-post .entry-footer .tags-links a {
	display: inline-block;
	padding: var(--space-1) var(--space-3);
	background-color: var(--color-bg-muted);
	border: 1px solid var(--color-border);
	border-radius: var(--radius-full);
	font-size: var(--text-xs);
	color: var(--color-neutral-700);
	text-decoration: none;
	margin: 2px;
	transition: var(--transition-colors);
}

.single-post .entry-footer .tags-links a:hover {
	background-color: var(--color-primary-50);
	border-color: var(--color-primary-200);
	color: var(--color-primary-700);
}


/* --------------------------------------------------------------------------
   13. RESPONSIVE FINE-TUNING
   -------------------------------------------------------------------------- */

/* 모바일: 카드 내부 패딩 조정 */
@media (max-width: 479px) {
	.blog .entry-header,
	.archive .entry-header {
		padding: var(--space-4) var(--space-4) 0;
	}
	.blog .entry-summary,
	.archive .entry-summary {
		padding: 0 var(--space-4) var(--space-4);
	}
	.mc-cta {
		padding: var(--space-6) var(--space-4);
	}
}