@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Sans:wght@400;500;600;700&family=Source+Serif+4:wght@600;700&display=swap');

:root {
	--book-bg: #f6f1e7;
	--book-card: #ffffff;
	--book-text: #1c1f23;
	--book-muted: #5f6b7a;
	--book-border: #e4e0d7;
	--book-accent: #f0c14b;
	--book-accent-strong: #ffa41c;
	--book-deep: #232f3e;
	--book-sale: #b12704;
}

.book-page {
	background: radial-gradient(circle at 10% 10%, rgba(240, 193, 75, 0.16), transparent 45%),
		radial-gradient(circle at 85% 0%, rgba(35, 47, 62, 0.08), transparent 40%),
		var(--book-bg);
	min-height: 100vh;
	font-family: "IBM Plex Sans", "Segoe UI", sans-serif;
	color: var(--book-text);
}

.book-hero {
	background: linear-gradient(120deg, rgba(255, 255, 255, 0.96), rgba(246, 241, 231, 0.94));
	border-bottom: 1px solid var(--book-border);
	padding: 2.5rem 0 2rem;
}

.book-hero-inner {
	display: flex;
	flex-direction: column;
	gap: 0.8rem;
}

.book-hero-title h1 {
	font-family: "Source Serif 4", serif;
	font-size: 2.4rem;
	font-weight: 700;
	margin: 0;
}

.book-hero-sub {
	margin: 0;
	color: var(--book-muted);
	font-size: 1rem;
}

.book-breadcrumbs {
	font-size: 0.9rem;
	color: var(--book-muted);
	display: flex;
	gap: 0.4rem;
	flex-wrap: wrap;
}

.book-breadcrumbs a {
	color: var(--book-deep);
	text-decoration: none;
	font-weight: 600;
}

.book-shell {
	padding: 2.5rem 0 3.5rem;
}

.book-back-link {
	color: var(--book-deep);
	font-weight: 600;
	margin-bottom: 1.4rem;
	text-decoration: none;
}

.book-back-link:hover {
	color: var(--book-sale);
	text-decoration: underline;
}

.book-grid {
	display: grid;
	grid-template-columns: minmax(260px, 1fr) minmax(360px, 1.7fr) minmax(250px, 0.9fr);
	gap: 2rem;
	background: var(--book-card);
	border-radius: 1.4rem;
	padding: 2.4rem;
	box-shadow: 0 18px 30px rgba(28, 31, 35, 0.08);
	border: 1px solid var(--book-border);
}

.book-gallery {
	display: flex;
	flex-direction: column;
	gap: 1rem;
}

.book-cover-frame {
	background: #fdfaf5;
	border-radius: 1rem;
	padding: 1.4rem;
	border: 1px solid var(--book-border);
	display: flex;
	align-items: center;
	justify-content: center;
}

.book-cover {
	max-width: 100%;
	max-height: 420px;
	object-fit: contain;
	border-radius: 0.8rem;
	box-shadow: 0 10px 20px rgba(28, 31, 35, 0.15);
}

.book-thumb-list {
	display: flex;
	gap: 0.6rem;
}

.book-thumb {
	background: #ffffff;
	border: 1px solid var(--book-border);
	border-radius: 0.6rem;
	padding: 0.35rem;
	width: 64px;
	height: 64px;
	transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.book-thumb img {
	width: 100%;
	height: 100%;
	object-fit: cover;
	border-radius: 0.35rem;
}

.book-thumb.is-active {
	border-color: var(--book-accent-strong);
	box-shadow: 0 0 0 3px rgba(255, 164, 28, 0.2);
}

.book-info {
	display: flex;
	flex-direction: column;
	gap: 1.6rem;
}

.book-title {
	font-family: "Source Serif 4", serif;
	font-size: 1.8rem;
	margin: 0 0 0.4rem 0;
}

.book-author {
	margin: 0;
	color: var(--book-muted);
}

.book-rating {
	display: flex;
	align-items: center;
	gap: 0.6rem;
	color: #f59e0b;
	font-weight: 600;
}

.book-rating .stars {
	letter-spacing: 0.1em;
}

.book-rating-text {
	color: var(--book-muted);
	font-weight: 500;
}

.book-price-row {
	display: flex;
	align-items: baseline;
	gap: 1rem;
	border-top: 1px solid var(--book-border);
	border-bottom: 1px solid var(--book-border);
	padding: 1rem 0;
}

.book-price-label {
	font-size: 0.9rem;
	color: var(--book-muted);
	text-transform: uppercase;
	letter-spacing: 0.12em;
}

.book-price-value {
	font-size: 1.8rem;
	font-weight: 700;
	color: var(--book-sale);
}

.book-about h3,
.book-details h3 {
	font-size: 1rem;
	text-transform: uppercase;
	letter-spacing: 0.14em;
	color: var(--book-deep);
	margin-bottom: 0.8rem;
}

.book-about p {
	font-size: 1rem;
	line-height: 1.8;
	color: var(--book-text);
	margin: 0;
}

.book-details dl {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
	gap: 0.8rem 1.4rem;
	margin: 0;
}

.book-details div {
	background: #faf7f0;
	border: 1px solid var(--book-border);
	border-radius: 0.8rem;
	padding: 0.8rem 1rem;
}

.book-details dt {
	font-size: 0.8rem;
	text-transform: uppercase;
	letter-spacing: 0.12em;
	color: var(--book-muted);
}

.book-details dd {
	margin: 0.35rem 0 0;
	font-weight: 600;
}

.book-aside {
	display: flex;
	flex-direction: column;
	gap: 1rem;
}

.book-buy-card {
	background: #ffffff;
	border: 1px solid var(--book-border);
	border-radius: 1rem;
	padding: 1.4rem;
	box-shadow: 0 10px 20px rgba(35, 47, 62, 0.08);
	position: sticky;
	top: 1.4rem;
}

.book-buy-price {
	font-size: 1.6rem;
	font-weight: 700;
	color: var(--book-sale);
}

.book-stock-line {
	font-weight: 600;
	margin: 0.6rem 0 0.8rem;
}

.book-stock-line.in-stock {
	color: #007600;
}

.book-stock-line.out-stock {
	color: #b12704;
}

.book-delivery {
	display: grid;
	gap: 0.5rem;
	color: var(--book-muted);
	font-size: 0.9rem;
	margin-bottom: 1rem;
}

.book-delivery i {
	margin-right: 0.5rem;
	color: var(--book-deep);
}

.book-buy {
	display: grid;
	gap: 0.8rem;
}

.book-qty-label {
	font-size: 0.85rem;
	font-weight: 600;
	color: var(--book-muted);
	margin-bottom: 0.35rem;
}

.book-qty .form-control {
	border-radius: 0.6rem;
	border: 1px solid var(--book-border);
	padding: 0.55rem 0.8rem;
}

.book-cta {
	background: linear-gradient(180deg, var(--book-accent) 0%, var(--book-accent-strong) 100%);
	color: #111111;
	border: 1px solid #d58b1a;
	border-radius: 0.6rem;
	padding: 0.7rem 1.2rem;
	font-weight: 700;
	box-shadow: 0 8px 16px rgba(255, 164, 28, 0.18);
	transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.book-cta:hover {
	color: #111111;
	transform: translateY(-1px);
	box-shadow: 0 10px 18px rgba(255, 164, 28, 0.24);
}

.book-safe {
	display: flex;
	align-items: center;
	gap: 0.5rem;
	margin-top: 1rem;
	font-size: 0.9rem;
	color: var(--book-muted);
}

.book-badges {
	display: flex;
	gap: 0.6rem;
	flex-wrap: wrap;
}

.book-badge {
	background: var(--book-deep);
	color: #ffffff;
	padding: 0.35rem 0.8rem;
	border-radius: 999px;
	font-size: 0.8rem;
	font-weight: 600;
}

.book-badge-light {
	background: rgba(0, 118, 0, 0.1);
	color: #007600;
}

.book-badge-outline {
	background: transparent;
	color: #b12704;
	border: 1px solid rgba(177, 39, 4, 0.4);
}

@media (max-width: 991.98px) {
	.book-hero-title h1 {
		font-size: 2rem;
	}
	.book-grid {
		grid-template-columns: 1fr;
		padding: 2rem;
	}
	.book-buy-card {
		position: static;
	}
}

@media (max-width: 575.98px) {
	.book-hero {
		padding: 2rem 0 1.4rem;
	}
	.book-grid {
		padding: 1.5rem;
	}
	.book-cta {
		width: 100%;
	}
}