/* Single sách: giới thiệu sách + sách liên quan (slide) */

.nhb-book-intro {
	padding: 40px 0 56px;
	background: #fff;
}

.nhb-book-tabs {
	display: flex;
	gap: 36px;
	border-bottom: 1px solid #e7e2d8;
	margin-bottom: 40px;
}

.nhb-book-tabs__item {
	padding: 14px 0;
	font-size: 15px;
	font-weight: 600;
	color: #6b7280;
	text-decoration: none;
	border-bottom: 2px solid transparent;
	margin-bottom: -1px;
}

.nhb-book-tabs__item.is-active {
	color: #c3791a;
	border-bottom-color: #c3791a;
}

.nhb-book-intro__grid {
	display: grid;
	grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
	gap: 32px;
	align-items: start;
}

.nhb-book-intro__heading,
.nhb-book-intro__message h3,
.nhb-book-intro__excerpt h3,
.nhb-book-intro__audience h3 {
	margin: 0 0 16px;
	font-family: "Playfair Display", Georgia, "Times New Roman", serif;
	font-size: 24px;
	font-weight: 700;
	color: #2e1758;
}

.nhb-book-intro__text p {
	margin: 0 0 14px;
	font-size: 15px;
	line-height: 1.7;
	color: #374151;
}

.nhb-book-intro__quote {
	margin: 24px 0 0;
	padding: 24px 28px;
	background: #fbf6ee;
	border-radius: 14px;
}

.nhb-book-intro__quote p,
.nhb-book-intro__message p,
.nhb-book-intro__excerpt blockquote p {
	margin: 0;
	font-family: "Playfair Display", Georgia, serif;
	font-style: italic;
	font-size: 17px;
	line-height: 1.6;
	color: #2e1758;
}

.nhb-book-intro__quote cite,
.nhb-book-intro__message cite,
.nhb-book-intro__excerpt blockquote span {
	display: block;
	margin-top: 12px;
	font-style: normal;
	font-size: 14px;
	text-align: right;
	color: #6b7280;
}

.nhb-book-intro__audience {
	padding: 28px 32px;
	background: #f4f7fd;
	border-radius: 18px;
}

.nhb-book-intro__audience ul {
	list-style: none;
	margin: 0;
	padding: 0;
	display: grid;
	gap: 18px;
}

.nhb-book-intro__audience li {
	display: flex;
	gap: 16px;
	align-items: center;
}

.nhb-book-intro__ico {
	flex: 0 0 auto;
	width: 48px;
	height: 48px;
	display: inline-flex;
	align-items: center;
	justify-content: center;
	border-radius: 50%;
	background: #fff;
	color: #2e1758;
	box-shadow: 0 2px 8px rgba(11, 46, 136, 0.08);
}

.nhb-book-intro__ico svg {
	width: 22px;
	height: 22px;
}

.nhb-book-intro__audience strong {
	display: block;
	font-size: 15px;
	color: #2e1758;
}

.nhb-book-intro__audience span {
	display: block;
	margin-top: 2px;
	font-size: 14px;
	color: #4b5563;
}

.nhb-book-intro__bottom {
	display: grid;
	grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
	gap: 32px;
	margin-top: 40px;
	align-items: stretch;
}

.nhb-book-intro__message-body {
	display: grid;
	grid-template-columns: 220px minmax(0, 1fr);
	gap: 24px;
	align-items: center;
}

.nhb-book-intro__message-body img {
	width: 100%;
	height: auto;
	border-radius: 14px;
	object-fit: cover;
}

.nhb-book-intro__excerpt {
	padding: 28px 32px;
	background: #fff;
	border: 1px solid #ece6da;
	border-radius: 18px;
	box-shadow: 0 6px 24px rgba(15, 23, 42, 0.05);
}

.nhb-book-intro__excerpt blockquote {
	margin: 0;
}

/* Sách liên quan */
.nhb-book-related {
	padding: 48px 0 64px;
	background: #fbfaf6;
}

.nhb-book-related__head {
	display: flex;
	align-items: center;
	justify-content: space-between;
	margin-bottom: 24px;
}

.nhb-book-related__head h2 {
	margin: 0;
	font-family: "Playfair Display", Georgia, serif;
	font-size: 26px;
	font-weight: 700;
	color: #2e1758;
}

.nhb-book-related__head a {
	font-size: 14px;
	font-weight: 600;
	color: #c3791a;
	text-decoration: none;
}

.nhb-book-related__wrap {
	position: relative;
	display: flex;
	align-items: center;
	gap: 12px;
}

.nhb-book-related__track {
	flex: 1 1 auto;
	min-width: 0;
	display: flex;
	gap: 20px;
	overflow-x: auto;
	scroll-snap-type: x mandatory;
	scrollbar-width: none;
	padding: 4px 2px 8px;
}

.nhb-book-related__track::-webkit-scrollbar {
	display: none;
}

.nhb-book-related__card {
	flex: 0 0 calc((100% - 80px) / 5);
	min-width: 180px;
	scroll-snap-align: start;
	background: #fff;
	border: 1px solid #ece6da;
	border-radius: 14px;
	overflow: hidden;
	display: flex;
	flex-direction: column;
}

.nhb-book-related__cover {
	position: relative;
	display: block;
	aspect-ratio: 9 / 16;
	overflow: hidden;
	background: #f6f3eb;
}

.nhb-book-related__cover img {
	position: absolute;
	inset: 0;
	width: 100%;
	height: 100%;
	object-fit: contain;
	display: block;
}

.nhb-book-related__placeholder {
	display: flex;
	align-items: center;
	justify-content: center;
	height: 100%;
	padding: 12px;
	text-align: center;
	font-size: 14px;
	color: #2e1758;
}

.nhb-book-related__body {
	padding: 14px 16px 16px;
	display: flex;
	flex-direction: column;
	gap: 4px;
	flex: 1 1 auto;
}

.nhb-book-related__title {
	margin: 0;
	min-height: calc(1.35em * 2);
	font-size: 15px;
	font-weight: 700;
	line-height: 1.35;
}

.nhb-book-related__title a {
	color: #2e1758;
	text-decoration: none;
}

.nhb-book-related__author {
	margin: 0;
	font-size: 13px;
	color: #6b7280;
}

.nhb-book-related__foot {
	margin-top: auto;
	padding-top: 10px;
	display: flex;
	align-items: center;
	justify-content: space-between;
}

.nhb-book-related__price {
	font-size: 15px;
	font-weight: 700;
	color: #c3791a;
}

.nhb-book-related__cart {
	width: 36px;
	height: 36px;
	display: inline-flex;
	align-items: center;
	justify-content: center;
	border: 1px solid #c3791a;
	border-radius: 50%;
	color: #c3791a;
}

.nhb-book-related__cart svg {
	width: 16px;
	height: 16px;
}

.nhb-book-related__nav {
	flex: 0 0 auto;
	width: 40px;
	height: 40px;
	border-radius: 50%;
	border: 1px solid #d6cfc0;
	background: #fff;
	color: #2e1758;
	font-size: 22px;
	line-height: 1;
	cursor: pointer;
}

@media (max-width: 1080px) {
	.nhb-book-related__card {
		flex: 0 0 160px;
		min-width: 140px;
	}

	.nhb-book-related__cover {
		aspect-ratio: 9 / 16;
	}

	.nhb-book-related__body {
		padding: 12px;
	}

	.nhb-book-related__title {
		font-size: 14px;
	}
}

@media (max-width: 768px) {
	.nhb-book-intro__grid,
	.nhb-book-intro__bottom {
		grid-template-columns: 1fr;
	}

	.nhb-book-intro__message-body {
		grid-template-columns: 1fr;
	}

	.nhb-book-related__card {
		flex: 0 0 135px;
		min-width: 125px;
	}

	.nhb-book-related__nav {
		display: none;
	}
}