/*
 * 글 하단 "이 글의 책" 카드와 책별 화면 `/reading/<slug>/`. 그 화면에서만 실린다(inc/book-hub.php).
 *
 * `/reading/` 책장과 같은 말투다 — 책 비율의 표지 자리에 제목 블록, 표지가 있으면 사진이 그 위를 채운다.
 * 카드는 얇은 선 하나로 나누고 그림자 · 배경을 두지 않는다.
 */
.erb-post-books,
.eeyoremind-book {
	--erb-ink: #191814;
	--erb-ink-2: #3e3b34;
	--erb-muted: #6f6a5e;
	--erb-rule: #d8d2c6;
	--erb-surface-low: #faf8f3;
	--erb-accent: #4a6150;
}

/* ---- `/reading/` 책장의 제목 링크 ---- */
.erc-book__link {
	color: inherit;
	text-decoration: none;
}

.erc-book__link:hover {
	color: #4a6150;
	text-decoration: underline;
	text-underline-offset: 0.2em;
}

.erc-book__link:focus-visible {
	outline: 2px solid #4a6150;
	outline-offset: 2px;
}

/* ---- 표지 자리 ---- */
.erb-cover {
	position: relative;
	flex: 0 0 64px;
	box-sizing: border-box;
	display: flex;
	align-items: flex-end;
	width: 64px;
	aspect-ratio: 2 / 3;
	overflow: hidden;
	padding: 0.35rem;
	border: 1px solid var(--erb-rule);
	border-radius: 2px;
	background: var(--erb-surface-low);
	color: var(--erb-muted);
	font-size: 0.6rem;
	line-height: 1.3;
	overflow-wrap: anywhere;
}

.erb-cover span {
	display: -webkit-box;
	-webkit-line-clamp: 5;
	-webkit-box-orient: vertical;
	overflow: hidden;
}

.erb-cover .eeyoremind-cover {
	position: absolute;
	inset: 0;
	display: block;
	width: 100%;
	height: 100%;
	max-width: none;
	object-fit: cover;
	background: var(--erb-surface-low);
}

.erb-cover--large {
	flex-basis: 112px;
	width: 112px;
	font-size: 0.75rem;
}

/* ---- 글 하단 카드 ---- */
.erb-post-books {
	margin-top: var(--wp--preset--spacing--50, 2rem);
	padding-top: 1rem;
	border-top: 1px solid var(--erb-rule);
}

.erb-post-books__heading {
	margin: 0 0 0.75rem;
	font-size: 0.85rem;
	font-weight: 600;
	letter-spacing: 0.02em;
	color: var(--erb-muted);
}

.erb-cards {
	list-style: none;
	margin: 0;
	padding: 0;
	display: grid;
	grid-template-columns: minmax(0, 1fr);
	gap: 0.75rem;
}

.erb-card {
	margin: 0;
	min-width: 0;
}

.erb-card__link {
	display: flex;
	align-items: flex-start;
	gap: 0.85rem;
	min-height: 44px;
	color: inherit;
	text-decoration: none;
}

.erb-card__link:focus-visible {
	outline: 2px solid var(--erb-accent);
	outline-offset: 3px;
}

.erb-card__text {
	display: flex;
	flex-direction: column;
	min-width: 0;
}

.erb-card__title {
	font-size: 1rem;
	line-height: 1.5;
	font-weight: 600;
	color: var(--erb-ink);
	overflow-wrap: anywhere;
}

.erb-card__link:hover .erb-card__title {
	color: var(--erb-accent);
	text-decoration: underline;
	text-underline-offset: 0.2em;
}

.erb-card__authors,
.erb-card__source {
	margin-top: 0.15rem;
	font-size: 0.85rem;
	line-height: 1.55;
	overflow-wrap: anywhere;
}

.erb-card__authors {
	color: var(--erb-ink-2);
}

.erb-card__source {
	color: var(--erb-muted);
}

@media (min-width: 640px) {
	.erb-cards {
		grid-template-columns: repeat(2, minmax(0, 1fr));
	}
}

/* ---- 책별 화면 ---- */
.erb-book {
	display: flex;
	align-items: flex-start;
	gap: 1.25rem;
	padding-bottom: 1.5rem;
	border-bottom: 1px solid var(--erb-rule);
}

.erb-book__text {
	min-width: 0;
}

.erb-book__title {
	margin: 0;
	font-size: 1.6rem;
	line-height: 1.35;
	color: var(--erb-ink);
	overflow-wrap: anywhere;
}

.erb-book__authors,
.erb-book__source {
	margin: 0.35rem 0 0;
	font-size: 0.95rem;
	line-height: 1.55;
	overflow-wrap: anywhere;
}

.erb-book__authors {
	color: var(--erb-ink-2);
}

.erb-book__source {
	color: var(--erb-muted);
}

.erb-posts {
	margin-top: 1.5rem;
}

.erb-posts__heading {
	margin: 0 0 0.75rem;
	font-size: 1rem;
	font-weight: 600;
	color: var(--erb-ink);
}

.erb-posts__list {
	list-style: none;
	margin: 0;
	padding: 0;
}

.erb-post {
	display: flex;
	flex-wrap: wrap;
	align-items: baseline;
	justify-content: space-between;
	gap: 0.25rem 1rem;
	padding: 0.7rem 0;
	border-bottom: 1px solid var(--erb-rule);
	min-width: 0;
}

.erb-post a {
	color: var(--erb-ink);
	font-weight: 600;
	overflow-wrap: anywhere;
	min-width: 0;
}

.erb-post a:hover {
	color: var(--erb-accent);
}

.erb-post__date {
	color: var(--erb-muted);
	font-size: 0.85rem;
	white-space: nowrap;
}

.erb-empty {
	margin: 0;
	color: var(--erb-muted);
}

.erb-back {
	margin: 2rem 0 0;
	font-size: 0.9rem;
}

.erb-back a {
	color: var(--erb-accent);
}

@media (min-width: 640px) {
	.erb-cover--large {
		flex-basis: 160px;
		width: 160px;
	}
}

@media (prefers-reduced-motion: no-preference) {
	.erb-card__title {
		transition: color 0.15s ease;
	}
}