/**
 * Free Books Library - Modern Frontend Styles
 *
 * @package Free_Books_Library
 */

/* ============================================
   CSS Custom Properties (Design Tokens)
   ============================================ */
:root {
	/* Color Palette - Modern & Accessible */
	--fbl-color-primary: #6366f1;
	--fbl-color-primary-dark: #4f46e5;
	--fbl-color-primary-light: #818cf8;
	--fbl-color-secondary: #8b5cf6;
	--fbl-color-accent: #ec4899;
	
	/* Neutral Colors */
	--fbl-color-text: #1f2937;
	--fbl-color-text-light: #6b7280;
	--fbl-color-text-lighter: #9ca3af;
	--fbl-color-bg: #ffffff;
	--fbl-color-bg-light: #f9fafb;
	--fbl-color-bg-lighter: #f3f4f6;
	--fbl-color-border: #e5e7eb;
	--fbl-color-border-light: #f3f4f6;
	
	/* Status Colors */
	--fbl-color-success: #10b981;
	--fbl-color-warning: #f59e0b;
	--fbl-color-error: #ef4444;
	--fbl-color-info: #3b82f6;
	
	/* Rating Color */
	--fbl-color-rating: #fbbf24;
	--fbl-color-rating-empty: #e5e7eb;
	
	/* Spacing System */
	--fbl-spacing-xs: 0.5rem;
	--fbl-spacing-sm: 0.75rem;
	--fbl-spacing-md: 1rem;
	--fbl-spacing-lg: 1.5rem;
	--fbl-spacing-xl: 2rem;
	--fbl-spacing-2xl: 3rem;
	
	/* Typography */
	--fbl-font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
	--fbl-font-size-xs: 0.75rem;
	--fbl-font-size-sm: 0.875rem;
	--fbl-font-size-base: 1rem;
	--fbl-font-size-lg: 1.125rem;
	--fbl-font-size-xl: 1.25rem;
	--fbl-font-size-2xl: 1.5rem;
	--fbl-font-size-3xl: 2rem;
	--fbl-font-size-4xl: 2.5rem;
	
	--fbl-font-weight-normal: 400;
	--fbl-font-weight-medium: 500;
	--fbl-font-weight-semibold: 600;
	--fbl-font-weight-bold: 700;
	
	--fbl-line-height-tight: 1.25;
	--fbl-line-height-normal: 1.5;
	--fbl-line-height-relaxed: 1.75;
	
	/* Border Radius */
	--fbl-radius-sm: 0.375rem;
	--fbl-radius-md: 0.5rem;
	--fbl-radius-lg: 0.75rem;
	--fbl-radius-xl: 1rem;
	--fbl-radius-full: 9999px;
	
	/* Shadows */
	--fbl-shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
	--fbl-shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
	--fbl-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
	--fbl-shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
	--fbl-shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
	
	/* Transitions */
	--fbl-transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
	--fbl-transition-base: 300ms cubic-bezier(0.4, 0, 0.2, 1);
	--fbl-transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
	
	/* Z-index */
	--fbl-z-base: 1;
	--fbl-z-dropdown: 1000;
	--fbl-z-sticky: 1020;
	--fbl-z-fixed: 1030;
	--fbl-z-modal: 1040;
}

/* ============================================
   Base Styles & Typography
   ============================================ */
.fbl-books-listing,
.fbl-single-book,
.fbl-archive-books {
	font-family: var(--fbl-font-family);
	color: var(--fbl-color-text);
	line-height: var(--fbl-line-height-normal);
}

/* ============================================
   JIRA-Style Horizontal Filter Bar
   ============================================ */
.fbl-filter-bar {
	background: #ffffff;
	border: 1px solid #dfe1e6;
	border-radius: 3px;
	margin-bottom: var(--fbl-spacing-xl);
	box-shadow: 0 1px 1px rgba(0, 0, 0, 0.1);
}

.fbl-filter-form {
	padding: 0;
}

.fbl-filter-bar-inner {
	display: flex;
	flex-wrap: nowrap;
	align-items: center;
	gap: var(--fbl-spacing-sm);
	padding: var(--fbl-spacing-md);
	border-bottom: 1px solid #dfe1e6;
}

.fbl-filter-dropdown {
	display: flex;
	flex-direction: row;
	flex: 0 0 auto;
	min-width: 120px;
}

.fbl-filter-label {
	display: block;
	font-size: 11px;
	font-weight: 600;
	color: #6b778c;
	text-transform: uppercase;
	letter-spacing: 0.5px;
	margin-bottom: 4px;
	line-height: 1.2;
}

.fbl-filter-select {
	width: 100%;
	padding: 6px 32px 6px 8px;
	border: 1px solid #dfe1e6;
	border-radius: 3px;
	background: #ffffff;
	color: #172b4d;
	font-size: 14px;
	font-family: var(--fbl-font-family);
	line-height: 1.42857;
	cursor: pointer;
	transition: all 0.2s ease;
	appearance: none;
	background-image: url("data:image/svg+xml,%3Csvg width='12' height='12' viewBox='0 0 12 12' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M2 4L6 8L10 4' stroke='%2350565F' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
	background-repeat: no-repeat;
	background-position: right 8px center;
	background-size: 12px;
}

.fbl-filter-select:hover {
	border-color: #b3bac5;
	background-color: #f4f5f7;
}

.fbl-filter-select:focus {
	outline: none;
	border-color: var(--fbl-color-primary);
	box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.2);
	background-color: #ffffff;
}

.fbl-filter-select option {
	padding: 8px;
}

.fbl-filter-search {
	display: flex;
	flex-direction: row;
	flex: 1 1 auto;
	min-width: 180px;
}

.fbl-search-wrapper {
	position: relative;
	display: flex;
	align-items: center;
}

.fbl-search-input {
	width: 100%;
	padding: 6px 40px 6px 8px;
	border: 1px solid #dfe1e6;
	border-radius: 3px;
	background: #ffffff;
	color: #172b4d;
	font-size: 14px;
	font-family: var(--fbl-font-family);
	line-height: 1.42857;
	transition: all 0.2s ease;
}

.fbl-search-input::placeholder {
	color: #6b778c;
}

.fbl-search-input:hover {
	border-color: #b3bac5;
	background-color: #f4f5f7;
}

.fbl-search-input:focus {
	outline: none;
	border-color: var(--fbl-color-primary);
	box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.2);
	background-color: #ffffff;
}

.fbl-search-btn {
	position: absolute;
	right: 4px;
	top: 50%;
	transform: translateY(-50%);
	display: flex;
	align-items: center;
	justify-content: center;
	width: 28px;
	height: 28px;
	padding: 0;
	border: none;
	background: transparent;
	color: #6b778c;
	cursor: pointer;
	border-radius: 3px;
	transition: all 0.2s ease;
}

.fbl-search-btn:hover {
	background: #f4f5f7;
	color: var(--fbl-color-primary);
}

.fbl-search-btn:active {
	background: #e4e6ea;
}

.fbl-search-btn svg {
	width: 16px;
	height: 16px;
}

.fbl-filter-actions {
	display: flex;
	gap: var(--fbl-spacing-sm);
	align-items: center;
	flex-shrink: 0;
}

.fbl-filter-submit-btn {
	padding: 6px 16px;
	background: var(--fbl-color-primary);
	color: #ffffff;
	border: none;
	border-radius: 3px;
	font-size: 14px;
	font-weight: 500;
	cursor: pointer;
	transition: all 0.2s ease;
	white-space: nowrap;
	height: 32px;
	display: inline-flex;
	align-items: center;
	justify-content: center;
}

.fbl-filter-submit-btn:hover {
	background: var(--fbl-color-primary-dark);
	box-shadow: 0 2px 4px rgba(99, 102, 241, 0.3);
}

.fbl-filter-submit-btn:active {
	background: var(--fbl-color-primary-dark);
	transform: translateY(1px);
}

.fbl-filter-reset-btn {
	padding: 6px 16px;
	background: transparent;
	color: #6b778c;
	border: 1px solid #dfe1e6;
	border-radius: 3px;
	font-size: 14px;
	font-weight: 500;
	text-decoration: none;
	cursor: pointer;
	transition: all 0.2s ease;
	white-space: nowrap;
	height: 32px;
	display: inline-flex;
	align-items: center;
	justify-content: center;
}

.fbl-filter-reset-btn:hover {
	background: #f4f5f7;
	border-color: #b3bac5;
	color: #172b4d;
}

.fbl-filter-reset-btn:active {
	background: #e4e6ea;
}

/* Active Filters Display */
.fbl-active-filters {
	padding: var(--fbl-spacing-sm) var(--fbl-spacing-md);
	background: #f4f5f7;
	border-top: 1px solid #dfe1e6;
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	gap: var(--fbl-spacing-sm);
}

.fbl-active-filters-label {
	font-size: 12px;
	font-weight: 600;
	color: #6b778c;
	text-transform: uppercase;
	letter-spacing: 0.5px;
}

.fbl-active-filters-list {
	display: flex;
	flex-wrap: wrap;
	gap: var(--fbl-spacing-xs);
	align-items: center;
	flex: 1;
}

.fbl-active-filter-tag {
	display: inline-flex;
	align-items: center;
	gap: 6px;
	padding: 4px 8px;
	background: #ffffff;
	border: 1px solid #dfe1e6;
	border-radius: 3px;
	font-size: 13px;
	color: #172b4d;
}

.fbl-filter-tag-label {
	font-weight: 600;
	color: #6b778c;
}

.fbl-filter-tag-value {
	color: #172b4d;
}

.fbl-filter-tag-remove {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: 16px;
	height: 16px;
	margin-left: 4px;
	background: transparent;
	border: none;
	color: #6b778c;
	text-decoration: none;
	font-size: 18px;
	line-height: 1;
	cursor: pointer;
	border-radius: 2px;
	transition: all 0.2s ease;
	padding: 0;
}

.fbl-filter-tag-remove:hover {
	background: #dfe1e6;
	color: #172b4d;
}

.fbl-clear-all-filters {
	padding: 4px 8px;
	color: #de350b;
	text-decoration: none;
	font-size: 13px;
	font-weight: 500;
	border-radius: 3px;
	transition: all 0.2s ease;
	margin-left: auto;
}

.fbl-clear-all-filters:hover {
	background: #ffebe6;
	text-decoration: underline;
}

.fbl-filter-loading {
	opacity: 0.7;
	pointer-events: none;
	position: relative;
}

.fbl-filter-loading::after {
	content: '';
	position: absolute;
	top: 50%;
	left: 50%;
	width: 16px;
	height: 16px;
	margin: -8px 0 0 -8px;
	border: 2px solid currentColor;
	border-top-color: transparent;
	border-radius: 50%;
	animation: fbl-spin 0.6s linear infinite;
}

@keyframes fbl-spin {
	to {
		transform: rotate(360deg);
	}
}

.fbl-no-books {
	text-align: center;
	padding: var(--fbl-spacing-2xl);
	color: var(--fbl-color-text-light);
	font-size: var(--fbl-font-size-lg);
}

/* Mobile Responsive */
@media (max-width: 768px) {
	.fbl-filter-bar-inner {
		flex-direction: column;
		flex-wrap: wrap;
		align-items: stretch;
		gap: var(--fbl-spacing-md);
	}
	
	.fbl-filter-dropdown {
		width: 100%;
		min-width: 100%;
		flex-direction: column;
	}
	
	.fbl-filter-search {
		width: 100%;
		min-width: 100%;
		flex-direction: column;
	}
	
	.fbl-filter-actions {
		width: 100%;
		justify-content: stretch;
	}
	
	.fbl-filter-submit-btn,
	.fbl-filter-reset-btn {
		flex: 1;
	}
	
	.fbl-active-filters {
		flex-direction: column;
		align-items: stretch;
	}
	
	.fbl-active-filters-label {
		width: 100%;
	}
	
	.fbl-active-filters-list {
		width: 100%;
	}
	
	.fbl-clear-all-filters {
		margin-left: 0;
		width: 100%;
		text-align: center;
		padding: 8px;
	}
}

@media (max-width: 480px) {
	.fbl-filter-bar {
		border-radius: 0;
		margin-left: calc(-1 * var(--fbl-spacing-md));
		margin-right: calc(-1 * var(--fbl-spacing-md));
		border-left: none;
		border-right: none;
	}
	
	.fbl-filter-bar-inner {
		padding: var(--fbl-spacing-sm) var(--fbl-spacing-md);
	}
	
	.fbl-active-filters {
		padding: var(--fbl-spacing-sm);
	}
}

/* ============================================
   Books Listing
   ============================================ */
.fbl-books-listing {
	display: grid;
	gap: var(--fbl-spacing-xl);
	margin: var(--fbl-spacing-xl) 0;
	animation: fadeIn 0.6s ease-out;
}

@keyframes fadeIn {
	from {
		opacity: 0;
		transform: translateY(20px);
	}
	to {
		opacity: 1;
		transform: translateY(0);
	}
}

.fbl-books-listing.fbl-layout-grid {
	grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
}

.fbl-books-listing.fbl-layout-list {
	grid-template-columns: 1fr;
}

/* ============================================
   Modern Book Card
   ============================================ */
.fbl-book-card {
	background: var(--fbl-color-bg);
	border: 1px solid var(--fbl-color-border-light);
	border-radius: var(--fbl-radius-xl);
	overflow: hidden;
	transition: all var(--fbl-transition-base);
	display: flex;
	flex-direction: column;
	box-shadow: var(--fbl-shadow-sm);
	position: relative;
	height: 100%;
}

.fbl-book-card::before {
	content: '';
	position: absolute;
	top: 0;
	left: 0;
	right: 0;
	height: 4px;
	background: linear-gradient(90deg, var(--fbl-color-primary), var(--fbl-color-secondary));
	opacity: 0;
	transition: opacity var(--fbl-transition-base);
}

.fbl-book-card:hover {
	box-shadow: var(--fbl-shadow-xl);
	transform: translateY(-4px);
	border-color: var(--fbl-color-primary-light);
}

.fbl-book-card:hover::before {
	opacity: 1;
}

.fbl-books-listing.fbl-layout-list .fbl-book-card {
	flex-direction: row;
	max-width: 100%;
}

/* Book Cover */
.fbl-book-cover {
	position: relative;
	overflow: hidden;
	background: linear-gradient(135deg, var(--fbl-color-bg-lighter) 0%, var(--fbl-color-bg-light) 100%);
	aspect-ratio: 3 / 4;
	display: flex;
	align-items: center;
	justify-content: center;
}

.fbl-book-cover img {
	width: 100%;
	height: 100%;
	object-fit: cover;
	display: block;
	transition: transform var(--fbl-transition-slow);
}

.fbl-book-card:hover .fbl-book-cover img {
	transform: scale(1.08);
}

.fbl-books-listing.fbl-layout-list .fbl-book-cover {
	flex: 0 0 240px;
	max-width: 240px;
	aspect-ratio: auto;
}

/* Book Content */
.fbl-book-content {
	padding: var(--fbl-spacing-lg);
	flex: 1;
	display: flex;
	flex-direction: column;
	gap: var(--fbl-spacing-sm);
}

.fbl-book-title {
	margin: 0;
	font-size: var(--fbl-font-size-lg);
	font-weight: var(--fbl-font-weight-semibold);
	line-height: var(--fbl-line-height-tight);
}

.fbl-book-title a {
	color: var(--fbl-color-text);
	text-decoration: none;
	transition: color var(--fbl-transition-fast);
	display: -webkit-box;
	-webkit-line-clamp: 2;
	line-clamp: 2;
	-webkit-box-orient: vertical;
	overflow: hidden;
}

.fbl-book-title a:hover {
	color: var(--fbl-color-primary);
}

.fbl-book-author {
	color: var(--fbl-color-text-light);
	font-size: var(--fbl-font-size-sm);
	font-weight: var(--fbl-font-weight-medium);
	margin: 0;
	display: flex;
	align-items: center;
	gap: var(--fbl-spacing-xs);
}

.fbl-book-author::before {
	content: '';
	display: inline-block;
	width: 14px;
	height: 14px;
	background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%236b7280' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20 21v-2a4 4 0 0 0-4-4H8a4 4 0 0 0-4 4v2'%3E%3C/path%3E%3Ccircle cx='12' cy='7' r='4'%3E%3C/circle%3E%3C/svg%3E");
	background-size: contain;
	background-repeat: no-repeat;
	background-position: center;
	opacity: 0.7;
	margin-right: 2px;
	vertical-align: middle;
}

.fbl-book-description {
	color: var(--fbl-color-text-light);
	font-size: var(--fbl-font-size-sm);
	line-height: var(--fbl-line-height-relaxed);
	margin: 0;
	flex: 1;
	display: -webkit-box;
	-webkit-line-clamp: 3;
	line-clamp: 3;
	-webkit-box-orient: vertical;
	overflow: hidden;
}

/* ============================================
   Modern Rating System
   ============================================ */
.fbl-rating {
	display: flex;
	align-items: center;
	gap: var(--fbl-spacing-sm);
	margin: var(--fbl-spacing-sm) 0;
}

.fbl-rating-stars {
	display: flex;
	gap: 2px;
}

.fbl-star {
	color: var(--fbl-color-rating-empty);
	font-size: 1.25rem;
	cursor: pointer;
	transition: all var(--fbl-transition-fast);
	user-select: none;
	position: relative;
	line-height: 1;
}

.fbl-star::before {
	content: '';
	display: block;
	width: 20px;
	height: 20px;
	background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%23e5e7eb' stroke='%23e5e7eb' stroke-width='1'%3E%3Cpath d='M12 2l3.09 6.26L22 9.27l-5 4.87 1.18 6.88L12 17.77l-6.18 3.25L7 14.14 2 9.27l6.91-1.01L12 2z'/%3E%3C/svg%3E");
	background-size: contain;
	background-repeat: no-repeat;
	background-position: center;
}

.fbl-star.filled {
	color: var(--fbl-color-rating);
}

.fbl-star.filled::before {
	background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%23fbbf24' stroke='%23fbbf24' stroke-width='1'%3E%3Cpath d='M12 2l3.09 6.26L22 9.27l-5 4.87 1.18 6.88L12 17.77l-6.18 3.25L7 14.14 2 9.27l6.91-1.01L12 2z'/%3E%3C/svg%3E");
}

.fbl-star:hover,
.fbl-star.filled {
	color: var(--fbl-color-rating);
	transform: scale(1.15);
}

.fbl-rating-average {
	font-size: var(--fbl-font-size-sm);
	color: var(--fbl-color-text-light);
	font-weight: var(--fbl-font-weight-semibold);
	background: var(--fbl-color-bg-light);
	padding: 0.25rem 0.5rem;
	border-radius: var(--fbl-radius-full);
}

.fbl-rating-vote {
	font-size: var(--fbl-font-size-xs);
	color: var(--fbl-color-primary);
	cursor: pointer;
	text-decoration: none;
	transition: color var(--fbl-transition-fast);
}

.fbl-rating-vote:hover {
	color: var(--fbl-color-primary-dark);
	text-decoration: underline;
}

.fbl-user-rating {
	font-size: var(--fbl-font-size-xs);
	color: var(--fbl-color-text-light);
}

/* ============================================
   Modern Buttons
   ============================================ */
.fbl-book-actions {
	display: flex;
	gap: var(--fbl-spacing-sm);
	flex-wrap: wrap;
	margin-top: auto;
	padding-top: var(--fbl-spacing-md);
}

.fbl-download-btn,
.fbl-view-details-btn {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	gap: var(--fbl-spacing-xs);
	padding: 0.75rem 1.5rem;
	border-radius: var(--fbl-radius-lg);
	text-decoration: none;
	font-size: var(--fbl-font-size-sm);
	font-weight: var(--fbl-font-weight-semibold);
	transition: all var(--fbl-transition-base);
	cursor: pointer;
	border: none;
	position: relative;
	overflow: hidden;
	white-space: nowrap;
}

.fbl-download-btn {
	background: linear-gradient(135deg, #9333ea 0%, #7e22ce 100%);
	color: #ffffff;
	box-shadow: var(--fbl-shadow-md);
	flex: 1;
	min-width: 120px;
}

.fbl-download-btn::before {
	content: '';
	position: absolute;
	top: 0;
	left: -100%;
	width: 100%;
	height: 100%;
	background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
	transition: left var(--fbl-transition-slow);
}

.fbl-download-btn:hover {
	background: linear-gradient(135deg, #a855f7 0%, #9333ea 100%);
	transform: translateY(-2px);
	box-shadow: var(--fbl-shadow-lg);
}

.fbl-download-btn:hover::before {
	left: 100%;
}

.fbl-download-btn:active {
	transform: translateY(0);
}

.fbl-view-details-btn {
	background: var(--fbl-color-bg);
	color: var(--fbl-color-text);
	border: 2px solid var(--fbl-color-border);
	flex: 1;
	min-width: 120px;
}

.fbl-view-details-btn:hover {
	background: var(--fbl-color-bg-light);
	border-color: var(--fbl-color-primary);
	color: var(--fbl-color-primary);
	transform: translateY(-2px);
	box-shadow: var(--fbl-shadow-md);
}

/* ============================================
   Single Book Page
   ============================================ */
.fbl-single-book {
	max-width: 1280px;
	margin: var(--fbl-spacing-2xl) auto;
	padding: 0 var(--fbl-spacing-lg);
	animation: fadeIn 0.6s ease-out;
}

.fbl-book-header {
	display: grid;
	grid-template-columns: 320px 1fr;
	gap: var(--fbl-spacing-2xl);
	margin-bottom: var(--fbl-spacing-2xl);
	align-items: start;
}

.fbl-book-cover-large {
	position: sticky;
	top: var(--fbl-spacing-xl);
}

.fbl-book-cover-large img {
	width: 100%;
	height: auto;
	border-radius: var(--fbl-radius-xl);
	box-shadow: var(--fbl-shadow-2xl);
	display: block;
	transition: transform var(--fbl-transition-slow);
}

.fbl-book-cover-large:hover img {
	transform: scale(1.02);
}

.fbl-book-info h1 {
	margin: 0 0 var(--fbl-spacing-lg);
	font-size: var(--fbl-font-size-4xl);
	font-weight: var(--fbl-font-weight-bold);
	line-height: var(--fbl-line-height-tight);
	color: var(--fbl-color-text);
}

.fbl-book-author {
	font-size: var(--fbl-font-size-xl);
	font-weight: var(--fbl-font-weight-medium);
	margin-bottom: var(--fbl-spacing-lg);
	color: var(--fbl-color-text-light);
	display: flex;
	align-items: center;
	gap: var(--fbl-spacing-sm);
}

.fbl-book-author strong {
	font-weight: var(--fbl-font-weight-semibold);
	color: var(--fbl-color-text);
}

.fbl-book-rating-wrapper {
	margin: var(--fbl-spacing-lg) 0;
}

.fbl-download-wrapper {
	margin-top: var(--fbl-spacing-xl);
}

.fbl-download-btn-large {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	gap: var(--fbl-spacing-sm);
	padding: 1.125rem 2.5rem;
	background: linear-gradient(135deg, #9333ea 0%, #7e22ce 100%);
	color: #ffffff;
	text-decoration: none;
	border-radius: var(--fbl-radius-lg);
	font-size: var(--fbl-font-size-lg);
	font-weight: var(--fbl-font-weight-semibold);
	transition: all var(--fbl-transition-base);
	box-shadow: var(--fbl-shadow-lg);
	position: relative;
	overflow: hidden;
}

.fbl-download-btn-large::before {
	content: '';
	display: inline-block;
	width: 20px;
	height: 20px;
	background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23ffffff' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M21 15v4a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2v-4'%3E%3C/path%3E%3Cpolyline points='7 10 12 15 17 10'%3E%3C/polyline%3E%3Cline x1='12' y1='15' x2='12' y2='3'%3E%3C/line%3E%3C/svg%3E");
	background-size: contain;
	background-repeat: no-repeat;
	background-position: center;
	margin-right: 4px;
}

.fbl-download-btn-large::after {
	content: '';
	position: absolute;
	top: 50%;
	left: 50%;
	width: 0;
	height: 0;
	border-radius: 50%;
	background: rgba(255, 255, 255, 0.3);
	transform: translate(-50%, -50%);
	transition: width 0.6s, height 0.6s;
}

.fbl-download-btn-large:hover {
	background: linear-gradient(135deg, #a855f7 0%, #9333ea 100%);
	transform: translateY(-3px);
	box-shadow: var(--fbl-shadow-2xl);
}

.fbl-download-btn-large:hover::after {
	width: 300px;
	height: 300px;
}

.fbl-download-btn-large:active {
	transform: translateY(-1px);
}

/* ============================================
   Book Meta Information
   ============================================ */
.fbl-book-meta {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
	gap: var(--fbl-spacing-lg);
	margin: var(--fbl-spacing-2xl) 0;
	padding: var(--fbl-spacing-xl);
	background: linear-gradient(135deg, var(--fbl-color-bg-light) 0%, var(--fbl-color-bg-lighter) 100%);
	border-radius: var(--fbl-radius-xl);
	border: 1px solid var(--fbl-color-border-light);
}

.fbl-meta-item {
	line-height: var(--fbl-line-height-relaxed);
}

.fbl-meta-item strong {
	display: block;
	margin-bottom: var(--fbl-spacing-xs);
	color: var(--fbl-color-text);
	font-weight: var(--fbl-font-weight-semibold);
	font-size: var(--fbl-font-size-sm);
	text-transform: uppercase;
	letter-spacing: 0.5px;
}

.fbl-meta-item a {
	color: var(--fbl-color-primary);
	text-decoration: none;
	transition: color var(--fbl-transition-fast);
	font-weight: var(--fbl-font-weight-medium);
}

.fbl-meta-item a:hover {
	color: var(--fbl-color-primary-dark);
	text-decoration: underline;
}

/* ============================================
   Book Description
   ============================================ */
.fbl-book-description {
	margin: var(--fbl-spacing-2xl) 0;
}

.fbl-book-description h2 {
	margin: 0 0 var(--fbl-spacing-lg);
	font-size: var(--fbl-font-size-2xl);
	font-weight: var(--fbl-font-weight-bold);
	color: var(--fbl-color-text);
	position: relative;
	padding-bottom: var(--fbl-spacing-md);
}

.fbl-book-description h2::after {
	content: '';
	position: absolute;
	bottom: 0;
	left: 0;
	width: 60px;
	height: 3px;
	background: linear-gradient(90deg, var(--fbl-color-primary), var(--fbl-color-secondary));
	border-radius: var(--fbl-radius-full);
}

.fbl-description-content {
	line-height: var(--fbl-line-height-relaxed);
	color: var(--fbl-color-text-light);
	font-size: var(--fbl-font-size-base);
}

.fbl-description-content p {
	margin-bottom: var(--fbl-spacing-md);
}

/* ============================================
   Book Gallery
   ============================================ */
.fbl-book-gallery {
	margin: var(--fbl-spacing-2xl) 0;
}

.fbl-book-gallery h2 {
	margin: 0 0 var(--fbl-spacing-lg);
	font-size: var(--fbl-font-size-2xl);
	font-weight: var(--fbl-font-weight-bold);
	color: var(--fbl-color-text);
	position: relative;
	padding-bottom: var(--fbl-spacing-md);
}

.fbl-book-gallery h2::after {
	content: '';
	position: absolute;
	bottom: 0;
	left: 0;
	width: 60px;
	height: 3px;
	background: linear-gradient(90deg, var(--fbl-color-primary), var(--fbl-color-secondary));
	border-radius: var(--fbl-radius-full);
}

.fbl-gallery-grid {
	display: grid;
	grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
	gap: var(--fbl-spacing-lg);
}

.fbl-gallery-item {
	position: relative;
	border-radius: var(--fbl-radius-lg);
	overflow: hidden;
	aspect-ratio: 1;
	box-shadow: var(--fbl-shadow-md);
	transition: all var(--fbl-transition-base);
	background: var(--fbl-color-bg-light);
}

.fbl-gallery-item:hover {
	transform: translateY(-4px);
	box-shadow: var(--fbl-shadow-xl);
}

.fbl-gallery-item img {
	width: 100%;
	height: 100%;
	object-fit: cover;
	display: block;
	transition: transform var(--fbl-transition-slow);
}

.fbl-gallery-link:hover img {
	transform: scale(1.1);
}

/* ============================================
   Related Books
   ============================================ */
.fbl-related-books {
	margin: var(--fbl-spacing-2xl) 0;
	padding-top: var(--fbl-spacing-2xl);
	border-top: 2px solid var(--fbl-color-border);
}

.fbl-related-books h2 {
	margin: 0 0 var(--fbl-spacing-xl);
	font-size: var(--fbl-font-size-2xl);
	font-weight: var(--fbl-font-weight-bold);
	color: var(--fbl-color-text);
	position: relative;
	padding-bottom: var(--fbl-spacing-md);
}

.fbl-related-books h2::after {
	content: '';
	position: absolute;
	bottom: 0;
	left: 0;
	width: 60px;
	height: 3px;
	background: linear-gradient(90deg, var(--fbl-color-primary), var(--fbl-color-secondary));
	border-radius: var(--fbl-radius-full);
}

/* ============================================
   Archive Page
   ============================================ */
.fbl-archive-books {
	max-width: 1280px;
	margin: var(--fbl-spacing-2xl) auto;
	padding: 0 var(--fbl-spacing-lg);
	animation: fadeIn 0.6s ease-out;
}

.fbl-archive-books .page-header {
	margin-bottom: var(--fbl-spacing-2xl);
	padding-bottom: var(--fbl-spacing-xl);
	border-bottom: 2px solid var(--fbl-color-border);
}

.fbl-archive-books .page-title {
	font-size: var(--fbl-font-size-4xl);
	font-weight: var(--fbl-font-weight-bold);
	margin: 0 0 var(--fbl-spacing-md);
	background: linear-gradient(135deg, var(--fbl-color-primary) 0%, var(--fbl-color-secondary) 100%);
	-webkit-background-clip: text;
	-webkit-text-fill-color: transparent;
	background-clip: text;
}

.fbl-archive-books .archive-description {
	color: var(--fbl-color-text-light);
	line-height: var(--fbl-line-height-relaxed);
	font-size: var(--fbl-font-size-lg);
}

/* ============================================
   Responsive Design
   ============================================ */

/* Tablet and smaller desktop */
@media (max-width: 1024px) {
	.fbl-book-header {
		grid-template-columns: 260px 1fr;
		gap: var(--fbl-spacing-xl);
	}
	
	.fbl-book-info h1 {
		font-size: var(--fbl-font-size-3xl);
	}
	
	.fbl-books-listing.fbl-layout-grid {
		grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
		gap: var(--fbl-spacing-lg);
	}
}

/* Mobile and tablet */
@media (max-width: 768px) {
	:root {
		--fbl-spacing-xs: 0.375rem;
		--fbl-spacing-sm: 0.625rem;
		--fbl-spacing-md: 0.875rem;
		--fbl-spacing-lg: 1.25rem;
		--fbl-spacing-xl: 1.5rem;
		--fbl-spacing-2xl: 2rem;
	}
	
	.fbl-books-listing,
	.fbl-single-book,
	.fbl-archive-books {
		padding: 0 var(--fbl-spacing-md);
	}
	
	.fbl-books-listing {
		gap: var(--fbl-spacing-lg);
		margin: var(--fbl-spacing-lg) 0;
	}
	
	.fbl-books-listing.fbl-layout-grid {
		grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
		gap: var(--fbl-spacing-md);
	}
	
	.fbl-books-listing.fbl-layout-list .fbl-book-card {
		flex-direction: column;
	}
	
	.fbl-books-listing.fbl-layout-list .fbl-book-cover {
		flex: 0 0 auto;
		max-width: 100%;
		aspect-ratio: 3 / 4;
	}
	
	.fbl-book-card {
		border-radius: var(--fbl-radius-lg);
	}
	
	.fbl-book-content {
		padding: var(--fbl-spacing-md);
		gap: var(--fbl-spacing-xs);
	}
	
	.fbl-book-title {
		font-size: var(--fbl-font-size-base);
		line-height: var(--fbl-line-height-tight);
	}
	
	.fbl-book-author {
		font-size: var(--fbl-font-size-xs);
	}
	
	.fbl-book-description {
		font-size: var(--fbl-font-size-xs);
		-webkit-line-clamp: 2;
		line-clamp: 2;
	}
	
	.fbl-book-actions {
		gap: var(--fbl-spacing-xs);
		padding-top: var(--fbl-spacing-sm);
	}
	
	.fbl-download-btn,
	.fbl-view-details-btn {
		padding: 0.875rem 1.25rem;
		font-size: var(--fbl-font-size-xs);
		min-height: 44px; /* Touch-friendly size */
		flex: 1;
		min-width: auto;
	}
	
	.fbl-rating {
		gap: var(--fbl-spacing-xs);
		margin: var(--fbl-spacing-xs) 0;
	}
	
	.fbl-star {
		font-size: 1rem;
		width: 18px;
		height: 18px;
	}
	
	.fbl-rating-average {
		font-size: var(--fbl-font-size-xs);
		padding: 0.2rem 0.4rem;
	}
	
	/* Single Book Page */
	.fbl-single-book {
		margin: var(--fbl-spacing-lg) auto;
		padding: 0 var(--fbl-spacing-md);
	}
	
	.fbl-book-header {
		grid-template-columns: 1fr;
		gap: var(--fbl-spacing-lg);
		margin-bottom: var(--fbl-spacing-lg);
	}
	
	.fbl-book-cover-large {
		position: static;
		max-width: 240px;
		margin: 0 auto var(--fbl-spacing-md);
	}
	
	.fbl-book-info {
		text-align: center;
	}
	
	.fbl-book-info h1 {
		font-size: var(--fbl-font-size-2xl);
		margin-bottom: var(--fbl-spacing-md);
		line-height: var(--fbl-line-height-tight);
		word-wrap: break-word;
		overflow-wrap: break-word;
	}
	
	.fbl-book-author {
		justify-content: center;
		font-size: var(--fbl-font-size-base);
		margin-bottom: var(--fbl-spacing-md);
	}
	
	.fbl-book-rating-wrapper {
		display: flex;
		justify-content: center;
		margin: var(--fbl-spacing-md) 0;
	}
	
	.fbl-download-wrapper {
		display: flex;
		justify-content: center;
		margin-top: var(--fbl-spacing-lg);
	}
	
	.fbl-download-btn-large {
		padding: 1rem 2rem;
		font-size: var(--fbl-font-size-base);
		min-height: 48px; /* Touch-friendly size */
		width: 100%;
		max-width: 300px;
	}
	
	.fbl-download-btn-large::before {
		width: 18px;
		height: 18px;
	}
	
	.fbl-book-meta {
		grid-template-columns: 1fr;
		gap: var(--fbl-spacing-md);
		padding: var(--fbl-spacing-md);
		margin: var(--fbl-spacing-lg) 0;
	}
	
	.fbl-meta-item {
		padding: var(--fbl-spacing-xs) 0;
	}
	
	.fbl-meta-item strong {
		font-size: var(--fbl-font-size-xs);
		margin-bottom: var(--fbl-spacing-xs);
	}
	
	.fbl-book-description {
		margin: var(--fbl-spacing-lg) 0;
	}
	
	.fbl-book-description h2 {
		font-size: var(--fbl-font-size-xl);
		margin-bottom: var(--fbl-spacing-md);
	}
	
	.fbl-description-content {
		font-size: var(--fbl-font-size-sm);
		line-height: var(--fbl-line-height-relaxed);
	}
	
	.fbl-book-gallery {
		margin: var(--fbl-spacing-lg) 0;
	}
	
	.fbl-book-gallery h2 {
		font-size: var(--fbl-font-size-xl);
		margin-bottom: var(--fbl-spacing-md);
	}
	
	.fbl-gallery-grid {
		grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
		gap: var(--fbl-spacing-sm);
	}
	
	.fbl-related-books {
		margin: var(--fbl-spacing-lg) 0;
		padding-top: var(--fbl-spacing-lg);
	}
	
	.fbl-related-books h2 {
		font-size: var(--fbl-font-size-xl);
		margin-bottom: var(--fbl-spacing-md);
	}
	
	/* Archive Page */
	.fbl-archive-books {
		margin: var(--fbl-spacing-lg) auto;
		padding: 0 var(--fbl-spacing-md);
	}
	
	.fbl-archive-books .page-header {
		margin-bottom: var(--fbl-spacing-lg);
		padding-bottom: var(--fbl-spacing-md);
	}
	
	.fbl-archive-books .page-title {
		font-size: var(--fbl-font-size-3xl);
		margin-bottom: var(--fbl-spacing-sm);
		word-wrap: break-word;
		overflow-wrap: break-word;
	}
	
	.fbl-archive-books .archive-description {
		font-size: var(--fbl-font-size-base);
		line-height: var(--fbl-line-height-relaxed);
	}
	
	.fbl-book-actions {
		flex-direction: column;
		gap: var(--fbl-spacing-sm);
	}
	
	.fbl-download-btn,
	.fbl-view-details-btn {
		width: 100%;
		min-width: 100%;
	}
}

/* Small mobile devices */
@media (max-width: 640px) {
	.fbl-books-listing.fbl-layout-grid {
		grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
		gap: var(--fbl-spacing-sm);
	}
	
	.fbl-book-content {
		padding: var(--fbl-spacing-sm);
	}
	
	.fbl-gallery-grid {
		grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
		gap: var(--fbl-spacing-xs);
	}
}

/* Extra small mobile devices */
@media (max-width: 480px) {
	:root {
		--fbl-spacing-md: 0.75rem;
		--fbl-spacing-lg: 1rem;
		--fbl-spacing-xl: 1.25rem;
	}
	
	.fbl-books-listing,
	.fbl-single-book,
	.fbl-archive-books {
		padding: 0 var(--fbl-spacing-sm);
	}
	
	.fbl-books-listing.fbl-layout-grid {
		grid-template-columns: 1fr;
		gap: var(--fbl-spacing-md);
	}
	
	.fbl-book-card {
		border-radius: var(--fbl-radius-md);
	}
	
	.fbl-book-info h1 {
		font-size: var(--fbl-font-size-xl);
	}
	
	.fbl-book-author {
		font-size: var(--fbl-font-size-xs);
	}
	
	.fbl-book-author::before {
		width: 12px;
		height: 12px;
	}
	
	.fbl-download-btn-large {
		padding: 0.875rem 1.5rem;
		font-size: var(--fbl-font-size-sm);
	}
	
	.fbl-archive-books .page-title {
		font-size: var(--fbl-font-size-2xl);
	}
	
	.fbl-gallery-grid {
		grid-template-columns: repeat(2, 1fr);
		gap: var(--fbl-spacing-xs);
	}
	
	.fbl-book-meta {
		padding: var(--fbl-spacing-sm);
	}
}

/* Very small devices */
@media (max-width: 360px) {
	.fbl-book-content {
		padding: var(--fbl-spacing-xs);
	}
	
	.fbl-download-btn,
	.fbl-view-details-btn {
		padding: 0.75rem 1rem;
		font-size: var(--fbl-font-size-xs);
	}
	
	.fbl-book-info h1 {
		font-size: var(--fbl-font-size-lg);
	}
	
	.fbl-archive-books .page-title {
		font-size: var(--fbl-font-size-xl);
	}
}

/* ============================================
   Loading States
   ============================================ */
.fbl-rating-loading {
	opacity: 0.6;
	pointer-events: none;
}

.fbl-rating-loading .fbl-star {
	cursor: not-allowed;
}

/* ============================================
   Accessibility
   ============================================ */
@media (prefers-reduced-motion: reduce) {
	*,
	*::before,
	*::after {
		animation-duration: 0.01ms !important;
		animation-iteration-count: 1 !important;
		transition-duration: 0.01ms !important;
	}
}

/* Focus Styles */
.fbl-download-btn:focus,
.fbl-view-details-btn:focus,
.fbl-star:focus {
	outline: 2px solid var(--fbl-color-primary);
	outline-offset: 2px;
}

/* Print Styles */
@media print {
	.fbl-book-actions,
	.fbl-download-wrapper {
		display: none;
	}
	
	.fbl-book-card {
		break-inside: avoid;
		box-shadow: none;
		border: 1px solid #ddd;
	}
}