/*
Theme Name: BD BookShelf
Theme URI: https://example.com/bd-bookshelf
Author: BD BookShelf
Author URI: https://example.com
Description: A professional WordPress theme designed specifically for authors. Showcase your books, share your blog, and connect with readers. Features dedicated book catalog pages, individual book detail pages with purchase links, author bio, and a clean reading-focused design.
Version: 1.0.0
Requires at least: 6.0
Tested up to: 6.7
Requires PHP: 8.0
License: GNU General Public License v2 or later
License URI: https://www.gnu.org/licenses/gpl-2.0.html
Text Domain: bd-bookshelf
Tags: blog, books, author, portfolio, custom-logo, custom-colors, custom-menu, featured-images, footer-widgets, full-width-template, sticky-post, theme-options, threaded-comments, two-columns, block-patterns, full-site-editing

BD BookShelf is a professional author theme for showcasing books and building reader communities.
*/

/* ============================================================
   CSS CUSTOM PROPERTIES (Design Tokens)
   ============================================================ */
:root {
	/* Brand Colors */
	--bdb-color-primary: #1a3a2a;
	--bdb-color-primary-light: #2d5a3f;
	--bdb-color-primary-dark: #0f2418;
	--bdb-color-accent: #c8913a;
	--bdb-color-accent-light: #e0a84f;
	--bdb-color-accent-dark: #a67325;

	/* Neutrals */
	--bdb-color-bg: #faf8f4;
	--bdb-color-bg-alt: #f2ede4;
	--bdb-color-surface: #ffffff;
	--bdb-color-surface-dark: #1a1a18;
	--bdb-color-text: #1c1c1a;
	--bdb-color-text-muted: #5a5a54;
	--bdb-color-text-light: #8a8a82;
	--bdb-color-border: #ddd8ce;
	--bdb-color-border-light: #eeebe4;

	/* Typography */
	--bdb-font-heading: 'Playfair Display', 'Georgia', serif;
	--bdb-font-body: 'Lora', 'Georgia', serif;
	--bdb-font-ui: 'Nunito Sans', 'Helvetica Neue', sans-serif;
	--bdb-font-mono: 'Courier New', monospace;

	/* Font Sizes */
	--bdb-text-xs: 0.75rem;
	--bdb-text-sm: 0.875rem;
	--bdb-text-base: 1rem;
	--bdb-text-md: 1.125rem;
	--bdb-text-lg: 1.25rem;
	--bdb-text-xl: 1.5rem;
	--bdb-text-2xl: 1.875rem;
	--bdb-text-3xl: 2.25rem;
	--bdb-text-4xl: 3rem;
	--bdb-text-5xl: 4rem;

	/* Spacing */
	--bdb-space-1: 0.25rem;
	--bdb-space-2: 0.5rem;
	--bdb-space-3: 0.75rem;
	--bdb-space-4: 1rem;
	--bdb-space-5: 1.25rem;
	--bdb-space-6: 1.5rem;
	--bdb-space-8: 2rem;
	--bdb-space-10: 2.5rem;
	--bdb-space-12: 3rem;
	--bdb-space-16: 4rem;
	--bdb-space-20: 5rem;
	--bdb-space-24: 6rem;

	/* Layout */
	--bdb-container-sm: 640px;
	--bdb-container-md: 768px;
	--bdb-container-lg: 1024px;
	--bdb-container-xl: 1280px;
	--bdb-container-content: 760px;

	/* Borders */
	--bdb-radius-sm: 4px;
	--bdb-radius-md: 8px;
	--bdb-radius-lg: 16px;
	--bdb-radius-full: 9999px;

	/* Shadows */
	--bdb-shadow-sm: 0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.06);
	--bdb-shadow-md: 0 4px 12px rgba(0,0,0,0.10), 0 2px 4px rgba(0,0,0,0.06);
	--bdb-shadow-lg: 0 10px 30px rgba(0,0,0,0.12), 0 4px 8px rgba(0,0,0,0.08);
	--bdb-shadow-book: 4px 8px 24px rgba(0,0,0,0.20), 2px 4px 8px rgba(0,0,0,0.12);

	/* Transitions */
	--bdb-transition-fast: 150ms ease;
	--bdb-transition-base: 250ms ease;
	--bdb-transition-slow: 400ms ease;
}

/* ============================================================
   RESET & BASE
   ============================================================ */
*, *::before, *::after {
	box-sizing: border-box;
}

html {
	scroll-behavior: smooth;
}

body {
	margin: 0;
	padding: 0;
	background-color: var(--bdb-color-bg);
	color: var(--bdb-color-text);
	font-family: var(--bdb-font-body);
	font-size: var(--bdb-text-base);
	line-height: 1.75;
	-webkit-font-smoothing: antialiased;
	-moz-osx-font-smoothing: grayscale;
}

img {
	max-width: 100%;
	height: auto;
	display: block;
}

a {
	color: var(--bdb-color-primary);
	text-decoration: underline;
	text-underline-offset: 3px;
	transition: color var(--bdb-transition-fast);
}

a:hover {
	color: var(--bdb-color-accent);
}

/* ============================================================
   TYPOGRAPHY
   ============================================================ */
h1, h2, h3, h4, h5, h6 {
	font-family: var(--bdb-font-heading);
	font-weight: 700;
	line-height: 1.2;
	color: var(--bdb-color-text);
	margin-top: 0;
	margin-bottom: var(--bdb-space-4);
}

h1 { font-size: var(--bdb-text-4xl); }
h2 { font-size: var(--bdb-text-3xl); }
h3 { font-size: var(--bdb-text-2xl); }
h4 { font-size: var(--bdb-text-xl); }
h5 { font-size: var(--bdb-text-lg); }
h6 { font-size: var(--bdb-text-md); }

p {
	margin-top: 0;
	margin-bottom: var(--bdb-space-5);
}

blockquote {
	margin: var(--bdb-space-8) 0;
	padding: var(--bdb-space-6) var(--bdb-space-8);
	border-left: 4px solid var(--bdb-color-accent);
	background: var(--bdb-color-bg-alt);
	font-size: var(--bdb-text-lg);
	font-style: italic;
	color: var(--bdb-color-text);
	border-radius: 0 var(--bdb-radius-md) var(--bdb-radius-md) 0;
}

blockquote cite {
	display: block;
	margin-top: var(--bdb-space-3);
	font-size: var(--bdb-text-sm);
	font-style: normal;
	color: var(--bdb-color-text-muted);
	font-family: var(--bdb-font-ui);
}

code {
	font-family: var(--bdb-font-mono);
	font-size: 0.9em;
	background: var(--bdb-color-bg-alt);
	padding: 2px 6px;
	border-radius: var(--bdb-radius-sm);
}

pre {
	background: var(--bdb-color-surface-dark);
	color: #e8e8e0;
	padding: var(--bdb-space-6);
	border-radius: var(--bdb-radius-md);
	overflow-x: auto;
	margin-bottom: var(--bdb-space-6);
}

pre code {
	background: none;
	padding: 0;
	color: inherit;
}

/* ============================================================
   LAYOUT
   ============================================================ */
.bdb-container {
	max-width: var(--bdb-container-xl);
	margin-left: auto;
	margin-right: auto;
	padding-left: var(--bdb-space-6);
	padding-right: var(--bdb-space-6);
}

.bdb-container--narrow {
	max-width: var(--bdb-container-content);
}

.bdb-container--medium {
	max-width: var(--bdb-container-lg);
}

/* ============================================================
   SITE HEADER
   ============================================================ */
.site-header {
	background: var(--bdb-color-surface);
	border-bottom: 1px solid var(--bdb-color-border);
	position: sticky;
	top: 0;
	z-index: 100;
	box-shadow: var(--bdb-shadow-sm);
}

.site-header__inner {
	display: flex;
	align-items: center;
	justify-content: space-between;
	min-height: 70px;
	gap: var(--bdb-space-6);
}

.site-branding {
	display: flex;
	align-items: center;
	gap: var(--bdb-space-4);
	text-decoration: none;
	flex-shrink: 0;
}

.site-branding:hover {
	text-decoration: none;
}

.custom-logo {
	height: 48px;
	width: auto;
	object-fit: contain;
}

.site-title {
	font-family: var(--bdb-font-heading);
	font-size: var(--bdb-text-xl);
	font-weight: 700;
	color: var(--bdb-color-primary);
	margin: 0;
	line-height: 1.1;
	letter-spacing: -0.02em;
}

.site-description {
	font-family: var(--bdb-font-ui);
	font-size: var(--bdb-text-xs);
	color: var(--bdb-color-text-muted);
	text-transform: uppercase;
	letter-spacing: 0.1em;
	margin: 0;
}

/* ============================================================
   NAVIGATION
   ============================================================ */
.main-navigation {
	flex: 1;
	display: flex;
	justify-content: flex-end;
}

.main-navigation ul {
	display: flex;
	align-items: center;
	list-style: none;
	margin: 0;
	padding: 0;
	gap: var(--bdb-space-1);
}

.main-navigation a {
	font-family: var(--bdb-font-ui);
	font-size: var(--bdb-text-sm);
	font-weight: 600;
	color: var(--bdb-color-text);
	text-decoration: none;
	padding: var(--bdb-space-2) var(--bdb-space-4);
	border-radius: var(--bdb-radius-full);
	letter-spacing: 0.02em;
	text-transform: uppercase;
	transition: background var(--bdb-transition-fast), color var(--bdb-transition-fast);
	display: block;
}

.main-navigation a:hover,
.main-navigation .current-menu-item > a,
.main-navigation .current_page_item > a {
	background: var(--bdb-color-primary);
	color: #fff;
}

.main-navigation .sub-menu {
	position: absolute;
	top: 100%;
	left: 0;
	background: var(--bdb-color-surface);
	border: 1px solid var(--bdb-color-border);
	border-radius: var(--bdb-radius-md);
	box-shadow: var(--bdb-shadow-md);
	min-width: 200px;
	flex-direction: column;
	padding: var(--bdb-space-2);
	display: none;
}

.main-navigation li:hover > .sub-menu,
.main-navigation li:focus-within > .sub-menu {
	display: flex;
}

.main-navigation li {
	position: relative;
}

/* Mobile nav toggle */
.menu-toggle {
	display: none;
	background: none;
	border: 2px solid var(--bdb-color-border);
	border-radius: var(--bdb-radius-sm);
	padding: var(--bdb-space-2) var(--bdb-space-3);
	cursor: pointer;
	font-family: var(--bdb-font-ui);
	font-size: var(--bdb-text-sm);
	font-weight: 600;
	color: var(--bdb-color-text);
}

/* ============================================================
   HERO / BANNER
   ============================================================ */
.site-banner {
	background: linear-gradient(135deg, var(--bdb-color-primary) 0%, var(--bdb-color-primary-light) 60%, var(--bdb-color-primary-dark) 100%);
	color: #fff;
	padding: var(--bdb-space-16) 0;
	position: relative;
	overflow: hidden;
}

.site-banner::before {
	content: '';
	position: absolute;
	inset: 0;
	background-image: radial-gradient(circle at 80% 50%, rgba(200, 145, 58, 0.15) 0%, transparent 60%);
	pointer-events: none;
}

.site-banner__inner {
	display: grid;
	grid-template-columns: 1fr auto;
	align-items: center;
	gap: var(--bdb-space-12);
}

.site-banner__text {
	max-width: 600px;
}

.site-banner__label {
	font-family: var(--bdb-font-ui);
	font-size: var(--bdb-text-xs);
	font-weight: 700;
	text-transform: uppercase;
	letter-spacing: 0.15em;
	color: var(--bdb-color-accent-light);
	margin-bottom: var(--bdb-space-3);
}

.site-banner__title {
	font-family: var(--bdb-font-heading);
	font-size: var(--bdb-text-5xl);
	font-weight: 700;
	color: #fff;
	margin-bottom: var(--bdb-space-4);
	line-height: 1.05;
	letter-spacing: -0.03em;
}

.site-banner__tagline {
	font-size: var(--bdb-text-lg);
	color: rgba(255,255,255,0.82);
	line-height: 1.6;
	margin-bottom: var(--bdb-space-8);
	font-style: italic;
}

.site-banner__actions {
	display: flex;
	gap: var(--bdb-space-4);
	flex-wrap: wrap;
}

.site-banner__portrait {
	width: 220px;
	height: 280px;
	object-fit: cover;
	border-radius: var(--bdb-radius-md);
	border: 4px solid rgba(255,255,255,0.2);
	box-shadow: var(--bdb-shadow-lg);
	flex-shrink: 0;
}

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
	display: inline-flex;
	align-items: center;
	gap: var(--bdb-space-2);
	font-family: var(--bdb-font-ui);
	font-size: var(--bdb-text-sm);
	font-weight: 700;
	letter-spacing: 0.04em;
	text-transform: uppercase;
	padding: var(--bdb-space-3) var(--bdb-space-6);
	border-radius: var(--bdb-radius-full);
	text-decoration: none;
	transition: all var(--bdb-transition-base);
	cursor: pointer;
	border: 2px solid transparent;
	white-space: nowrap;
}

.btn--primary {
	background: var(--bdb-color-accent);
	color: #fff;
	border-color: var(--bdb-color-accent);
}

.btn--primary:hover {
	background: var(--bdb-color-accent-dark);
	border-color: var(--bdb-color-accent-dark);
	color: #fff;
	transform: translateY(-1px);
	box-shadow: 0 4px 12px rgba(200, 145, 58, 0.4);
}

.btn--secondary {
	background: transparent;
	color: #fff;
	border-color: rgba(255,255,255,0.5);
}

.btn--secondary:hover {
	background: rgba(255,255,255,0.1);
	border-color: rgba(255,255,255,0.8);
	color: #fff;
}

.btn--outline {
	background: transparent;
	color: var(--bdb-color-primary);
	border-color: var(--bdb-color-primary);
}

.btn--outline:hover {
	background: var(--bdb-color-primary);
	color: #fff;
}

.btn--sm {
	font-size: var(--bdb-text-xs);
	padding: var(--bdb-space-2) var(--bdb-space-4);
}

.btn--lg {
	font-size: var(--bdb-text-base);
	padding: var(--bdb-space-4) var(--bdb-space-8);
}

/* ============================================================
   MAIN CONTENT AREA
   ============================================================ */
.site-main {
	min-height: 60vh;
	padding: var(--bdb-space-12) 0;
}

.content-area {
	display: grid;
	grid-template-columns: 1fr 320px;
	gap: var(--bdb-space-12);
	align-items: start;
}

.content-area--full {
	grid-template-columns: 1fr;
}

/* ============================================================
   BLOG / POST LOOP
   ============================================================ */
.posts-loop {
	display: flex;
	flex-direction: column;
	gap: var(--bdb-space-10);
}

.post-card {
	background: var(--bdb-color-surface);
	border-radius: var(--bdb-radius-lg);
	overflow: hidden;
	box-shadow: var(--bdb-shadow-sm);
	border: 1px solid var(--bdb-color-border-light);
	transition: box-shadow var(--bdb-transition-base), transform var(--bdb-transition-base);
	display: grid;
	grid-template-columns: 280px 1fr;
}

.post-card:hover {
	box-shadow: var(--bdb-shadow-md);
	transform: translateY(-2px);
}

.post-card--featured {
	grid-template-columns: 1fr;
}

.post-card__thumbnail {
	overflow: hidden;
	background: var(--bdb-color-bg-alt);
}

.post-card__thumbnail img {
	width: 100%;
	height: 100%;
	object-fit: cover;
	transition: transform var(--bdb-transition-slow);
}

.post-card:hover .post-card__thumbnail img {
	transform: scale(1.04);
}

.post-card--featured .post-card__thumbnail {
	height: 320px;
}

.post-card__body {
	padding: var(--bdb-space-8);
	display: flex;
	flex-direction: column;
}

.post-card__meta {
	display: flex;
	align-items: center;
	gap: var(--bdb-space-3);
	margin-bottom: var(--bdb-space-4);
	flex-wrap: wrap;
}

.post-card__category {
	font-family: var(--bdb-font-ui);
	font-size: var(--bdb-text-xs);
	font-weight: 700;
	text-transform: uppercase;
	letter-spacing: 0.1em;
	color: var(--bdb-color-accent-dark);
	text-decoration: none;
	background: rgba(200, 145, 58, 0.1);
	padding: 2px 10px;
	border-radius: var(--bdb-radius-full);
}

.post-card__date {
	font-family: var(--bdb-font-ui);
	font-size: var(--bdb-text-xs);
	color: var(--bdb-color-text-light);
}

.post-card__title {
	font-family: var(--bdb-font-heading);
	font-size: var(--bdb-text-xl);
	font-weight: 700;
	margin-bottom: var(--bdb-space-3);
	line-height: 1.3;
}

.post-card__title a {
	color: var(--bdb-color-text);
	text-decoration: none;
}

.post-card__title a:hover {
	color: var(--bdb-color-primary);
}

.post-card__excerpt {
	color: var(--bdb-color-text-muted);
	font-size: var(--bdb-text-base);
	line-height: 1.7;
	margin-bottom: var(--bdb-space-5);
	flex: 1;
}

.post-card__read-more {
	font-family: var(--bdb-font-ui);
	font-size: var(--bdb-text-sm);
	font-weight: 700;
	color: var(--bdb-color-primary);
	text-decoration: none;
	text-transform: uppercase;
	letter-spacing: 0.05em;
	display: inline-flex;
	align-items: center;
	gap: var(--bdb-space-2);
}

.post-card__read-more:hover {
	color: var(--bdb-color-accent);
}

.post-card__read-more::after {
	content: '→';
}

/* ============================================================
   SIDEBAR
   ============================================================ */
.primary-sidebar {
	position: sticky;
	top: 90px;
}

.widget {
	background: var(--bdb-color-surface);
	border-radius: var(--bdb-radius-lg);
	padding: var(--bdb-space-6);
	margin-bottom: var(--bdb-space-6);
	border: 1px solid var(--bdb-color-border-light);
}

.widget-title {
	font-family: var(--bdb-font-heading);
	font-size: var(--bdb-text-md);
	font-weight: 700;
	color: var(--bdb-color-text);
	margin-bottom: var(--bdb-space-5);
	padding-bottom: var(--bdb-space-3);
	border-bottom: 2px solid var(--bdb-color-accent);
	display: inline-block;
}

.widget ul {
	list-style: none;
	margin: 0;
	padding: 0;
}

.widget ul li {
	padding: var(--bdb-space-2) 0;
	border-bottom: 1px solid var(--bdb-color-border-light);
	font-size: var(--bdb-text-sm);
}

.widget ul li:last-child {
	border-bottom: none;
}

/* Author widget in sidebar */
.widget-author {
	text-align: center;
}

.widget-author__avatar {
	width: 80px;
	height: 80px;
	border-radius: 50%;
	object-fit: cover;
	margin: 0 auto var(--bdb-space-4);
	border: 3px solid var(--bdb-color-border);
}

.widget-author__name {
	font-family: var(--bdb-font-heading);
	font-size: var(--bdb-text-lg);
	font-weight: 700;
	margin-bottom: var(--bdb-space-2);
}

.widget-author__bio {
	font-size: var(--bdb-text-sm);
	color: var(--bdb-color-text-muted);
	line-height: 1.6;
	margin-bottom: var(--bdb-space-4);
}

/* ============================================================
   BOOKS CATALOG PAGE
   ============================================================ */
.page-header {
	background: var(--bdb-color-primary);
	color: #fff;
	padding: var(--bdb-space-16) 0;
	margin-bottom: var(--bdb-space-12);
	position: relative;
	overflow: hidden;
}

.page-header::after {
	content: '';
	position: absolute;
	bottom: -1px;
	left: 0;
	right: 0;
	height: 60px;
	background: var(--bdb-color-bg);
	clip-path: ellipse(55% 100% at 50% 100%);
}

.page-header__inner {
	text-align: center;
	position: relative;
	z-index: 1;
}

.page-header__label {
	font-family: var(--bdb-font-ui);
	font-size: var(--bdb-text-xs);
	font-weight: 700;
	text-transform: uppercase;
	letter-spacing: 0.15em;
	color: var(--bdb-color-accent-light);
	margin-bottom: var(--bdb-space-3);
}

.page-header__title {
	font-family: var(--bdb-font-heading);
	font-size: var(--bdb-text-4xl);
	color: #fff;
	margin-bottom: var(--bdb-space-4);
}

.page-header__description {
	font-size: var(--bdb-text-lg);
	color: rgba(255,255,255,0.75);
	max-width: 600px;
	margin: 0 auto;
	font-style: italic;
}

/* Books filter bar */
.books-filter {
	display: flex;
	align-items: center;
	gap: var(--bdb-space-4);
	margin-bottom: var(--bdb-space-10);
	padding: var(--bdb-space-4) var(--bdb-space-6);
	background: var(--bdb-color-surface);
	border-radius: var(--bdb-radius-lg);
	border: 1px solid var(--bdb-color-border-light);
	flex-wrap: wrap;
}

.books-filter__label {
	font-family: var(--bdb-font-ui);
	font-size: var(--bdb-text-sm);
	font-weight: 700;
	color: var(--bdb-color-text-muted);
	text-transform: uppercase;
	letter-spacing: 0.08em;
	white-space: nowrap;
}

.books-filter__tags {
	display: flex;
	gap: var(--bdb-space-2);
	flex-wrap: wrap;
}

.filter-tag {
	font-family: var(--bdb-font-ui);
	font-size: var(--bdb-text-xs);
	font-weight: 600;
	padding: var(--bdb-space-2) var(--bdb-space-4);
	border-radius: var(--bdb-radius-full);
	border: 1px solid var(--bdb-color-border);
	background: transparent;
	color: var(--bdb-color-text-muted);
	text-decoration: none;
	cursor: pointer;
	transition: all var(--bdb-transition-fast);
	text-transform: uppercase;
	letter-spacing: 0.05em;
}

.filter-tag:hover,
.filter-tag.active {
	background: var(--bdb-color-primary);
	border-color: var(--bdb-color-primary);
	color: #fff;
}

/* Books grid */
.books-grid {
	display: grid;
	grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
	gap: var(--bdb-space-8);
	margin-bottom: var(--bdb-space-12);
}

.book-card {
	display: flex;
	flex-direction: column;
	text-decoration: none;
	color: inherit;
	group: true;
}

.book-card:hover {
	text-decoration: none;
}

.book-card__cover-wrap {
	position: relative;
	margin-bottom: var(--bdb-space-4);
}

.book-card__cover {
	width: 100%;
	aspect-ratio: 2/3;
	object-fit: cover;
	border-radius: var(--bdb-radius-md);
	box-shadow: var(--bdb-shadow-book);
	transition: transform var(--bdb-transition-base), box-shadow var(--bdb-transition-base);
}

.book-card:hover .book-card__cover {
	transform: translateY(-6px) rotate(-1deg);
	box-shadow: 8px 16px 36px rgba(0,0,0,0.25), 3px 6px 12px rgba(0,0,0,0.12);
}

.book-card__badge {
	position: absolute;
	top: var(--bdb-space-3);
	right: var(--bdb-space-3);
	background: var(--bdb-color-accent);
	color: #fff;
	font-family: var(--bdb-font-ui);
	font-size: var(--bdb-text-xs);
	font-weight: 700;
	text-transform: uppercase;
	letter-spacing: 0.05em;
	padding: 3px 10px;
	border-radius: var(--bdb-radius-full);
}

.book-card__series {
	font-family: var(--bdb-font-ui);
	font-size: var(--bdb-text-xs);
	color: var(--bdb-color-accent-dark);
	text-transform: uppercase;
	letter-spacing: 0.08em;
	font-weight: 600;
	margin-bottom: var(--bdb-space-1);
}

.book-card__title {
	font-family: var(--bdb-font-heading);
	font-size: var(--bdb-text-md);
	font-weight: 700;
	line-height: 1.3;
	color: var(--bdb-color-text);
	margin-bottom: var(--bdb-space-2);
}

.book-card__genre {
	font-family: var(--bdb-font-ui);
	font-size: var(--bdb-text-xs);
	color: var(--bdb-color-text-light);
	text-transform: uppercase;
	letter-spacing: 0.06em;
}

/* ============================================================
   BOOK DETAIL PAGE
   ============================================================ */
.book-detail {
	padding: var(--bdb-space-12) 0;
}

.book-detail__grid {
	display: grid;
	grid-template-columns: 1fr 380px;
	gap: var(--bdb-space-12);
	align-items: start;
}

.book-detail__main {}

.book-detail__breadcrumb {
	font-family: var(--bdb-font-ui);
	font-size: var(--bdb-text-sm);
	color: var(--bdb-color-text-muted);
	margin-bottom: var(--bdb-space-6);
}

.book-detail__breadcrumb a {
	color: var(--bdb-color-text-muted);
}

.book-detail__breadcrumb span {
	margin: 0 var(--bdb-space-2);
}

.book-detail__cover-block {
	display: flex;
	gap: var(--bdb-space-8);
	margin-bottom: var(--bdb-space-10);
}

.book-detail__cover {
	width: 220px;
	flex-shrink: 0;
	border-radius: var(--bdb-radius-md);
	box-shadow: var(--bdb-shadow-book);
}

.book-detail__cover-info {
	flex: 1;
}

.book-detail__series {
	font-family: var(--bdb-font-ui);
	font-size: var(--bdb-text-sm);
	font-weight: 700;
	color: var(--bdb-color-accent-dark);
	text-transform: uppercase;
	letter-spacing: 0.1em;
	margin-bottom: var(--bdb-space-2);
}

.book-detail__title {
	font-family: var(--bdb-font-heading);
	font-size: var(--bdb-text-4xl);
	font-weight: 700;
	line-height: 1.1;
	margin-bottom: var(--bdb-space-2);
	letter-spacing: -0.02em;
}

.book-detail__subtitle {
	font-family: var(--bdb-font-heading);
	font-size: var(--bdb-text-xl);
	font-weight: 400;
	font-style: italic;
	color: var(--bdb-color-text-muted);
	margin-bottom: var(--bdb-space-5);
}

.book-detail__author {
	font-family: var(--bdb-font-ui);
	font-size: var(--bdb-text-md);
	color: var(--bdb-color-text-muted);
	margin-bottom: var(--bdb-space-5);
}

.book-detail__author a {
	color: var(--bdb-color-primary);
	font-weight: 600;
}

.book-detail__rating {
	display: flex;
	align-items: center;
	gap: var(--bdb-space-3);
	margin-bottom: var(--bdb-space-5);
}

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

.rating-stars .star {
	color: var(--bdb-color-accent);
	font-size: var(--bdb-text-md);
}

.rating-stars .star.empty {
	color: var(--bdb-color-border);
}

.rating-count {
	font-family: var(--bdb-font-ui);
	font-size: var(--bdb-text-sm);
	color: var(--bdb-color-text-muted);
}

.book-detail__meta-grid {
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	gap: var(--bdb-space-4);
	margin-bottom: var(--bdb-space-6);
}

.book-meta-item {
	background: var(--bdb-color-bg-alt);
	border-radius: var(--bdb-radius-md);
	padding: var(--bdb-space-4);
}

.book-meta-item__label {
	font-family: var(--bdb-font-ui);
	font-size: var(--bdb-text-xs);
	text-transform: uppercase;
	letter-spacing: 0.1em;
	font-weight: 700;
	color: var(--bdb-color-text-muted);
	margin-bottom: var(--bdb-space-1);
}

.book-meta-item__value {
	font-family: var(--bdb-font-ui);
	font-size: var(--bdb-text-sm);
	font-weight: 600;
	color: var(--bdb-color-text);
}

/* Description tabs */
.book-tabs {
	margin-bottom: var(--bdb-space-10);
}

.book-tabs__nav {
	display: flex;
	gap: 0;
	border-bottom: 2px solid var(--bdb-color-border);
	margin-bottom: var(--bdb-space-6);
}

.book-tab-btn {
	font-family: var(--bdb-font-ui);
	font-size: var(--bdb-text-sm);
	font-weight: 700;
	text-transform: uppercase;
	letter-spacing: 0.06em;
	padding: var(--bdb-space-3) var(--bdb-space-6);
	border: none;
	background: none;
	cursor: pointer;
	color: var(--bdb-color-text-muted);
	border-bottom: 3px solid transparent;
	margin-bottom: -2px;
	transition: all var(--bdb-transition-fast);
}

.book-tab-btn.active,
.book-tab-btn:hover {
	color: var(--bdb-color-primary);
	border-bottom-color: var(--bdb-color-accent);
}

.book-tab-content {
	display: none;
}

.book-tab-content.active {
	display: block;
}

.book-description {
	font-size: var(--bdb-text-md);
	line-height: 1.8;
	color: var(--bdb-color-text);
}

/* Book reviews */
.book-review {
	border: 1px solid var(--bdb-color-border-light);
	border-radius: var(--bdb-radius-md);
	padding: var(--bdb-space-6);
	margin-bottom: var(--bdb-space-5);
	background: var(--bdb-color-surface);
}

.book-review__header {
	display: flex;
	justify-content: space-between;
	align-items: flex-start;
	margin-bottom: var(--bdb-space-3);
}

.book-review__reviewer {
	font-family: var(--bdb-font-ui);
	font-weight: 700;
	font-size: var(--bdb-text-sm);
}

.book-review__date {
	font-family: var(--bdb-font-ui);
	font-size: var(--bdb-text-xs);
	color: var(--bdb-color-text-light);
}

.book-review__text {
	font-size: var(--bdb-text-sm);
	line-height: 1.7;
	color: var(--bdb-color-text-muted);
}

/* ============================================================
   BUY BOX (Right Sidebar on Book Detail)
   ============================================================ */
.buy-box {
	background: var(--bdb-color-surface);
	border: 1px solid var(--bdb-color-border);
	border-radius: var(--bdb-radius-lg);
	padding: var(--bdb-space-6);
	position: sticky;
	top: 90px;
	box-shadow: var(--bdb-shadow-md);
}

.buy-box__formats {
	margin-bottom: var(--bdb-space-6);
}

.buy-box__format-label {
	font-family: var(--bdb-font-ui);
	font-size: var(--bdb-text-xs);
	font-weight: 700;
	text-transform: uppercase;
	letter-spacing: 0.1em;
	color: var(--bdb-color-text-muted);
	margin-bottom: var(--bdb-space-3);
}

.format-tabs {
	display: flex;
	gap: var(--bdb-space-2);
}

.format-tab {
	flex: 1;
	padding: var(--bdb-space-3) var(--bdb-space-2);
	border: 2px solid var(--bdb-color-border);
	border-radius: var(--bdb-radius-md);
	background: transparent;
	cursor: pointer;
	text-align: center;
	transition: all var(--bdb-transition-fast);
}

.format-tab.active,
.format-tab:hover {
	border-color: var(--bdb-color-primary);
	background: rgba(26, 58, 42, 0.05);
}

.format-tab__icon {
	display: block;
	font-size: 1.25rem;
	margin-bottom: 2px;
}

.format-tab__name {
	font-family: var(--bdb-font-ui);
	font-size: var(--bdb-text-xs);
	font-weight: 700;
	color: var(--bdb-color-text);
	display: block;
}

.buy-box__retailers {
	display: flex;
	flex-direction: column;
	gap: var(--bdb-space-3);
	margin-bottom: var(--bdb-space-6);
}

.retailer-link {
	display: flex;
	align-items: center;
	justify-content: space-between;
	padding: var(--bdb-space-4) var(--bdb-space-5);
	border-radius: var(--bdb-radius-md);
	text-decoration: none;
	font-family: var(--bdb-font-ui);
	font-size: var(--bdb-text-sm);
	font-weight: 700;
	transition: all var(--bdb-transition-fast);
	border: 2px solid transparent;
}

.retailer-link:hover {
	transform: translateX(3px);
	text-decoration: none;
}

.retailer-link__name {
	display: flex;
	align-items: center;
	gap: var(--bdb-space-3);
}

.retailer-link__logo {
	width: 24px;
	height: 24px;
	object-fit: contain;
	border-radius: 4px;
}

.retailer-link__arrow {
	font-size: 1.1em;
	opacity: 0.7;
}

/* Retailer brand colors */
.retailer-link--amazon {
	background: #fff8ec;
	color: #b5500b;
	border-color: #f0c882;
}

.retailer-link--amazon:hover {
	background: #fff0d0;
	border-color: #b5500b;
	color: #b5500b;
}

.retailer-link--bn {
	background: #f0f4ff;
	color: #1a3a8f;
	border-color: #c5d0f0;
}

.retailer-link--bn:hover {
	background: #e0e8ff;
	border-color: #1a3a8f;
	color: #1a3a8f;
}

.retailer-link--kobo {
	background: #fdf0ff;
	color: #7b1fa2;
	border-color: #e0c0f0;
}

.retailer-link--kobo:hover {
	background: #f5e0ff;
	border-color: #7b1fa2;
	color: #7b1fa2;
}

.retailer-link--apple {
	background: #f4f4f8;
	color: #1c1c1e;
	border-color: #d0d0d8;
}

.retailer-link--apple:hover {
	background: #e8e8f0;
	border-color: #1c1c1e;
	color: #1c1c1e;
}

.retailer-link--bookshop {
	background: #f0fff4;
	color: #166534;
	border-color: #a7e3be;
}

.retailer-link--bookshop:hover {
	background: #dcffea;
	border-color: #166534;
	color: #166534;
}

.retailer-link--audible {
	background: #fffbf0;
	color: #7c5c00;
	border-color: #f0dc90;
}

.retailer-link--audible:hover {
	background: #fff3c0;
	border-color: #7c5c00;
	color: #7c5c00;
}

.buy-box__divider {
	display: flex;
	align-items: center;
	gap: var(--bdb-space-3);
	margin: var(--bdb-space-5) 0;
	color: var(--bdb-color-text-light);
	font-size: var(--bdb-text-xs);
	font-family: var(--bdb-font-ui);
	text-transform: uppercase;
	letter-spacing: 0.1em;
}

.buy-box__divider::before,
.buy-box__divider::after {
	content: '';
	flex: 1;
	height: 1px;
	background: var(--bdb-color-border);
}

.buy-box__library {
	text-align: center;
}

.buy-box__library-text {
	font-family: var(--bdb-font-ui);
	font-size: var(--bdb-text-xs);
	color: var(--bdb-color-text-light);
	margin-bottom: var(--bdb-space-3);
}

.buy-box__share {
	margin-top: var(--bdb-space-5);
	padding-top: var(--bdb-space-5);
	border-top: 1px solid var(--bdb-color-border-light);
}

.buy-box__share-label {
	font-family: var(--bdb-font-ui);
	font-size: var(--bdb-text-xs);
	font-weight: 700;
	text-transform: uppercase;
	letter-spacing: 0.1em;
	color: var(--bdb-color-text-muted);
	margin-bottom: var(--bdb-space-3);
}

.share-buttons {
	display: flex;
	gap: var(--bdb-space-2);
}

.share-btn {
	flex: 1;
	padding: var(--bdb-space-2);
	border: 1px solid var(--bdb-color-border);
	border-radius: var(--bdb-radius-sm);
	background: transparent;
	cursor: pointer;
	font-family: var(--bdb-font-ui);
	font-size: var(--bdb-text-xs);
	font-weight: 600;
	color: var(--bdb-color-text-muted);
	text-decoration: none;
	text-align: center;
	transition: all var(--bdb-transition-fast);
}

.share-btn:hover {
	background: var(--bdb-color-bg-alt);
	color: var(--bdb-color-text);
}

/* ============================================================
   RELATED BOOKS
   ============================================================ */
.related-books {
	margin-top: var(--bdb-space-16);
	padding-top: var(--bdb-space-12);
	border-top: 2px solid var(--bdb-color-border-light);
}

.section-header {
	display: flex;
	align-items: baseline;
	justify-content: space-between;
	margin-bottom: var(--bdb-space-8);
}

.section-title {
	font-family: var(--bdb-font-heading);
	font-size: var(--bdb-text-2xl);
	font-weight: 700;
	margin: 0;
}

.section-link {
	font-family: var(--bdb-font-ui);
	font-size: var(--bdb-text-sm);
	font-weight: 700;
	text-transform: uppercase;
	letter-spacing: 0.05em;
	color: var(--bdb-color-primary);
}

.books-row {
	display: grid;
	grid-template-columns: repeat(4, 1fr);
	gap: var(--bdb-space-6);
}

/* ============================================================
   AUTHOR / ABOUT PAGE
   ============================================================ */
.author-page {
	padding: var(--bdb-space-16) 0;
}

.author-hero {
	display: grid;
	grid-template-columns: 360px 1fr;
	gap: var(--bdb-space-12);
	align-items: start;
	margin-bottom: var(--bdb-space-16);
}

.author-hero__photo-wrap {
	position: relative;
}

.author-hero__photo {
	width: 100%;
	border-radius: var(--bdb-radius-lg);
	box-shadow: var(--bdb-shadow-lg);
}

.author-hero__photo-caption {
	position: absolute;
	bottom: var(--bdb-space-4);
	left: var(--bdb-space-4);
	right: var(--bdb-space-4);
	background: rgba(26, 58, 42, 0.9);
	color: #fff;
	font-family: var(--bdb-font-ui);
	font-size: var(--bdb-text-xs);
	text-align: center;
	padding: var(--bdb-space-2) var(--bdb-space-4);
	border-radius: var(--bdb-radius-sm);
}

.author-hero__content {}

.author-hero__label {
	font-family: var(--bdb-font-ui);
	font-size: var(--bdb-text-xs);
	font-weight: 700;
	text-transform: uppercase;
	letter-spacing: 0.15em;
	color: var(--bdb-color-accent-dark);
	margin-bottom: var(--bdb-space-3);
}

.author-hero__name {
	font-family: var(--bdb-font-heading);
	font-size: var(--bdb-text-5xl);
	font-weight: 700;
	line-height: 1.0;
	margin-bottom: var(--bdb-space-4);
	letter-spacing: -0.03em;
}

.author-hero__tagline {
	font-size: var(--bdb-text-xl);
	font-style: italic;
	color: var(--bdb-color-text-muted);
	line-height: 1.5;
	margin-bottom: var(--bdb-space-8);
	border-left: 4px solid var(--bdb-color-accent);
	padding-left: var(--bdb-space-5);
}

.author-social {
	display: flex;
	gap: var(--bdb-space-3);
	flex-wrap: wrap;
}

.author-social__link {
	display: inline-flex;
	align-items: center;
	gap: var(--bdb-space-2);
	font-family: var(--bdb-font-ui);
	font-size: var(--bdb-text-xs);
	font-weight: 700;
	text-transform: uppercase;
	letter-spacing: 0.06em;
	color: var(--bdb-color-text-muted);
	text-decoration: none;
	padding: var(--bdb-space-2) var(--bdb-space-4);
	border: 1px solid var(--bdb-color-border);
	border-radius: var(--bdb-radius-full);
	transition: all var(--bdb-transition-fast);
}

.author-social__link:hover {
	background: var(--bdb-color-primary);
	border-color: var(--bdb-color-primary);
	color: #fff;
}

/* Author awards / accolades */
.author-awards {
	background: var(--bdb-color-bg-alt);
	border-radius: var(--bdb-radius-lg);
	padding: var(--bdb-space-8);
	margin-bottom: var(--bdb-space-10);
}

.author-awards__title {
	font-family: var(--bdb-font-ui);
	font-size: var(--bdb-text-xs);
	font-weight: 700;
	text-transform: uppercase;
	letter-spacing: 0.15em;
	color: var(--bdb-color-text-muted);
	margin-bottom: var(--bdb-space-5);
}

.awards-list {
	display: flex;
	flex-direction: column;
	gap: var(--bdb-space-3);
	list-style: none;
	margin: 0;
	padding: 0;
}

.award-item {
	display: flex;
	align-items: flex-start;
	gap: var(--bdb-space-3);
	font-size: var(--bdb-text-sm);
}

.award-item::before {
	content: '🏆';
	font-size: 1rem;
	flex-shrink: 0;
}

/* ============================================================
   NEWSLETTER / CTA SECTION
   ============================================================ */
.newsletter-section {
	background: var(--bdb-color-primary);
	color: #fff;
	padding: var(--bdb-space-16) 0;
	text-align: center;
}

.newsletter-section__label {
	font-family: var(--bdb-font-ui);
	font-size: var(--bdb-text-xs);
	font-weight: 700;
	text-transform: uppercase;
	letter-spacing: 0.15em;
	color: var(--bdb-color-accent-light);
	margin-bottom: var(--bdb-space-3);
}

.newsletter-section__title {
	font-family: var(--bdb-font-heading);
	font-size: var(--bdb-text-3xl);
	color: #fff;
	margin-bottom: var(--bdb-space-4);
}

.newsletter-section__text {
	font-size: var(--bdb-text-md);
	color: rgba(255,255,255,0.75);
	margin-bottom: var(--bdb-space-8);
	max-width: 500px;
	margin-left: auto;
	margin-right: auto;
	font-style: italic;
}

.newsletter-form {
	display: flex;
	gap: var(--bdb-space-3);
	max-width: 480px;
	margin: 0 auto;
}

.newsletter-form__input {
	flex: 1;
	padding: var(--bdb-space-4) var(--bdb-space-5);
	border: 2px solid rgba(255,255,255,0.3);
	border-radius: var(--bdb-radius-full);
	background: rgba(255,255,255,0.1);
	color: #fff;
	font-family: var(--bdb-font-body);
	font-size: var(--bdb-text-base);
}

.newsletter-form__input::placeholder {
	color: rgba(255,255,255,0.5);
}

.newsletter-form__input:focus {
	outline: none;
	border-color: var(--bdb-color-accent-light);
	background: rgba(255,255,255,0.15);
}

/* ============================================================
   SITE FOOTER
   ============================================================ */
.site-footer {
	background: var(--bdb-color-surface-dark);
	color: rgba(255,255,255,0.7);
	padding: var(--bdb-space-16) 0 var(--bdb-space-8);
}

.site-footer__grid {
	display: grid;
	grid-template-columns: 2fr 1fr 1fr 1fr;
	gap: var(--bdb-space-10);
	margin-bottom: var(--bdb-space-12);
}

.footer-brand {}

.footer-brand__logo {
	height: 40px;
	width: auto;
	margin-bottom: var(--bdb-space-4);
	filter: brightness(0) invert(1);
	opacity: 0.9;
}

.footer-brand__name {
	font-family: var(--bdb-font-heading);
	font-size: var(--bdb-text-xl);
	font-weight: 700;
	color: #fff;
	margin-bottom: var(--bdb-space-3);
}

.footer-brand__tagline {
	font-size: var(--bdb-text-sm);
	line-height: 1.6;
	color: rgba(255,255,255,0.55);
	font-style: italic;
	margin-bottom: var(--bdb-space-5);
}

.footer-col__title {
	font-family: var(--bdb-font-ui);
	font-size: var(--bdb-text-xs);
	font-weight: 700;
	text-transform: uppercase;
	letter-spacing: 0.12em;
	color: rgba(255,255,255,0.45);
	margin-bottom: var(--bdb-space-4);
}

.footer-col ul {
	list-style: none;
	margin: 0;
	padding: 0;
	display: flex;
	flex-direction: column;
	gap: var(--bdb-space-2);
}

.footer-col a {
	color: rgba(255,255,255,0.65);
	font-family: var(--bdb-font-ui);
	font-size: var(--bdb-text-sm);
	text-decoration: none;
	transition: color var(--bdb-transition-fast);
}

.footer-col a:hover {
	color: var(--bdb-color-accent-light);
}

.site-footer__bottom {
	border-top: 1px solid rgba(255,255,255,0.1);
	padding-top: var(--bdb-space-6);
	display: flex;
	justify-content: space-between;
	align-items: center;
	flex-wrap: wrap;
	gap: var(--bdb-space-4);
}

.footer-copyright {
	font-family: var(--bdb-font-ui);
	font-size: var(--bdb-text-xs);
	color: rgba(255,255,255,0.4);
}

.footer-legal {
	display: flex;
	gap: var(--bdb-space-5);
}

.footer-legal a {
	font-family: var(--bdb-font-ui);
	font-size: var(--bdb-text-xs);
	color: rgba(255,255,255,0.4);
	text-decoration: none;
	transition: color var(--bdb-transition-fast);
}

.footer-legal a:hover {
	color: rgba(255,255,255,0.7);
}

/* ============================================================
   PAGINATION
   ============================================================ */
.pagination {
	display: flex;
	align-items: center;
	justify-content: center;
	gap: var(--bdb-space-2);
	margin-top: var(--bdb-space-12);
}

.page-numbers {
	font-family: var(--bdb-font-ui);
	font-size: var(--bdb-text-sm);
	font-weight: 600;
	width: 40px;
	height: 40px;
	display: flex;
	align-items: center;
	justify-content: center;
	border-radius: var(--bdb-radius-full);
	text-decoration: none;
	color: var(--bdb-color-text-muted);
	border: 1px solid var(--bdb-color-border);
	transition: all var(--bdb-transition-fast);
}

.page-numbers:hover,
.page-numbers.current {
	background: var(--bdb-color-primary);
	border-color: var(--bdb-color-primary);
	color: #fff;
}

/* ============================================================
   SINGLE POST
   ============================================================ */
.single-post {
	max-width: var(--bdb-container-content);
	margin: 0 auto;
}

.post-header {
	margin-bottom: var(--bdb-space-10);
	text-align: center;
}

.post-header__categories {
	display: flex;
	justify-content: center;
	gap: var(--bdb-space-2);
	margin-bottom: var(--bdb-space-5);
	flex-wrap: wrap;
}

.post-category-badge {
	font-family: var(--bdb-font-ui);
	font-size: var(--bdb-text-xs);
	font-weight: 700;
	text-transform: uppercase;
	letter-spacing: 0.1em;
	color: var(--bdb-color-accent-dark);
	background: rgba(200, 145, 58, 0.1);
	padding: 3px 12px;
	border-radius: var(--bdb-radius-full);
	text-decoration: none;
}

.post-header__title {
	font-size: var(--bdb-text-4xl);
	margin-bottom: var(--bdb-space-5);
}

.post-header__meta {
	display: flex;
	align-items: center;
	justify-content: center;
	gap: var(--bdb-space-5);
	flex-wrap: wrap;
}

.post-header__author-avatar {
	width: 40px;
	height: 40px;
	border-radius: 50%;
	object-fit: cover;
}

.post-header__meta-text {
	font-family: var(--bdb-font-ui);
	font-size: var(--bdb-text-sm);
	color: var(--bdb-color-text-muted);
}

.post-featured-image {
	width: 100%;
	max-height: 520px;
	object-fit: cover;
	border-radius: var(--bdb-radius-lg);
	margin-bottom: var(--bdb-space-10);
}

.post-content {
	font-size: var(--bdb-text-md);
	line-height: 1.8;
}

.post-content h2 {
	font-size: var(--bdb-text-2xl);
	margin-top: var(--bdb-space-10);
}

.post-content h3 {
	font-size: var(--bdb-text-xl);
	margin-top: var(--bdb-space-8);
}

.post-tags {
	margin-top: var(--bdb-space-10);
	padding-top: var(--bdb-space-6);
	border-top: 1px solid var(--bdb-color-border-light);
	display: flex;
	align-items: center;
	gap: var(--bdb-space-3);
	flex-wrap: wrap;
}

.post-tags__label {
	font-family: var(--bdb-font-ui);
	font-size: var(--bdb-text-sm);
	font-weight: 700;
	color: var(--bdb-color-text-muted);
	text-transform: uppercase;
	letter-spacing: 0.08em;
}

.post-tag {
	font-family: var(--bdb-font-ui);
	font-size: var(--bdb-text-xs);
	padding: 3px 12px;
	border: 1px solid var(--bdb-color-border);
	border-radius: var(--bdb-radius-full);
	color: var(--bdb-color-text-muted);
	text-decoration: none;
	transition: all var(--bdb-transition-fast);
}

.post-tag:hover {
	background: var(--bdb-color-text);
	border-color: var(--bdb-color-text);
	color: #fff;
}

/* ============================================================
   COMMENTS
   ============================================================ */
.comments-section {
	margin-top: var(--bdb-space-12);
}

.comments-title {
	font-size: var(--bdb-text-2xl);
	margin-bottom: var(--bdb-space-8);
}

.comment-list {
	list-style: none;
	padding: 0;
	margin: 0 0 var(--bdb-space-10);
}

.comment {
	display: flex;
	gap: var(--bdb-space-5);
	padding: var(--bdb-space-6) 0;
	border-bottom: 1px solid var(--bdb-color-border-light);
}

.comment-avatar {
	width: 48px;
	height: 48px;
	border-radius: 50%;
	flex-shrink: 0;
}

.comment-body {}

.comment-meta {
	display: flex;
	align-items: baseline;
	gap: var(--bdb-space-3);
	margin-bottom: var(--bdb-space-2);
}

.comment-author {
	font-family: var(--bdb-font-ui);
	font-weight: 700;
	font-size: var(--bdb-text-sm);
}

.comment-date {
	font-family: var(--bdb-font-ui);
	font-size: var(--bdb-text-xs);
	color: var(--bdb-color-text-light);
}

.comment-content {
	font-size: var(--bdb-text-sm);
	line-height: 1.7;
}

/* Comment form */
.comment-form label {
	display: block;
	font-family: var(--bdb-font-ui);
	font-size: var(--bdb-text-sm);
	font-weight: 700;
	margin-bottom: var(--bdb-space-2);
	color: var(--bdb-color-text);
}

.comment-form input,
.comment-form textarea {
	width: 100%;
	padding: var(--bdb-space-4);
	border: 1px solid var(--bdb-color-border);
	border-radius: var(--bdb-radius-md);
	font-family: var(--bdb-font-body);
	font-size: var(--bdb-text-base);
	color: var(--bdb-color-text);
	background: var(--bdb-color-surface);
	margin-bottom: var(--bdb-space-5);
	transition: border-color var(--bdb-transition-fast);
}

.comment-form input:focus,
.comment-form textarea:focus {
	outline: none;
	border-color: var(--bdb-color-primary);
}

.comment-form textarea {
	min-height: 140px;
	resize: vertical;
}

/* ============================================================
   SKIP LINK (ACCESSIBILITY)
   ============================================================ */
.skip-link {
	position: absolute;
	top: -40px;
	left: 6px;
	background: var(--bdb-color-primary);
	color: #fff;
	padding: var(--bdb-space-2) var(--bdb-space-4);
	z-index: 9999;
	text-decoration: none;
	border-radius: var(--bdb-radius-sm);
	font-family: var(--bdb-font-ui);
	font-size: var(--bdb-text-sm);
	font-weight: 700;
}

.skip-link:focus {
	top: 6px;
}

/* ============================================================
   UTILITY CLASSES
   ============================================================ */
.screen-reader-text {
	border: 0;
	clip: rect(1px, 1px, 1px, 1px);
	clip-path: inset(50%);
	height: 1px;
	margin: -1px;
	overflow: hidden;
	padding: 0;
	position: absolute;
	width: 1px;
	word-wrap: normal !important;
}

.screen-reader-text:focus {
	background-color: var(--bdb-color-surface);
	border-radius: var(--bdb-radius-sm);
	box-shadow: var(--bdb-shadow-md);
	clip: auto !important;
	clip-path: none;
	color: var(--bdb-color-text);
	display: block;
	font-size: var(--bdb-text-base);
	font-weight: 700;
	height: auto;
	left: 5px;
	padding: 15px 23px 14px;
	text-decoration: none;
	top: 5px;
	width: auto;
	z-index: 100000;
}

.alignleft { float: left; margin-right: var(--bdb-space-6); margin-bottom: var(--bdb-space-4); }
.alignright { float: right; margin-left: var(--bdb-space-6); margin-bottom: var(--bdb-space-4); }
.aligncenter { display: block; margin-left: auto; margin-right: auto; }
.alignwide { margin-left: calc(-1 * var(--bdb-space-8)); margin-right: calc(-1 * var(--bdb-space-8)); }
.alignfull { margin-left: calc(50% - 50vw); margin-right: calc(50% - 50vw); width: 100vw; max-width: 100vw; }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
	.book-detail__grid { grid-template-columns: 1fr 320px; gap: var(--bdb-space-8); }
	.books-row { grid-template-columns: repeat(3, 1fr); }
	.site-footer__grid { grid-template-columns: 1fr 1fr; }
	.author-hero { grid-template-columns: 280px 1fr; }
}

@media (max-width: 768px) {
	:root {
		--bdb-text-4xl: 2.25rem;
		--bdb-text-5xl: 2.75rem;
	}

	.bdb-container { padding-left: var(--bdb-space-5); padding-right: var(--bdb-space-5); }

	.site-header__inner { flex-wrap: wrap; }

	.menu-toggle { display: block; }

	.main-navigation { display: none; width: 100%; order: 3; }
	.main-navigation.toggled { display: flex; flex-direction: column; padding: var(--bdb-space-4) 0; }
	.main-navigation ul { flex-direction: column; width: 100%; gap: 0; }
	.main-navigation a { border-radius: var(--bdb-radius-sm); }

	.content-area { grid-template-columns: 1fr; }
	.primary-sidebar { position: static; }

	.post-card { grid-template-columns: 1fr; }
	.post-card__thumbnail { height: 220px; }
	.post-card--featured .post-card__thumbnail { height: 240px; }

	.site-banner__inner { grid-template-columns: 1fr; }
	.site-banner__portrait { display: none; }

	.books-grid { grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: var(--bdb-space-5); }

	.book-detail__grid { grid-template-columns: 1fr; }
	.buy-box { position: static; }
	.book-detail__cover-block { gap: var(--bdb-space-5); }
	.book-detail__cover { width: 160px; }
	.book-detail__meta-grid { grid-template-columns: 1fr 1fr; }
	.books-row { grid-template-columns: repeat(2, 1fr); }

	.author-hero { grid-template-columns: 1fr; }
	.author-hero__photo-wrap { max-width: 280px; }

	.site-footer__grid { grid-template-columns: 1fr; gap: var(--bdb-space-8); }
	.site-footer__bottom { flex-direction: column; text-align: center; }

	.newsletter-form { flex-direction: column; }

	h1 { font-size: var(--bdb-text-3xl); }
	h2 { font-size: var(--bdb-text-2xl); }
}

@media (max-width: 480px) {
	.books-grid { grid-template-columns: repeat(2, 1fr); }
	.books-row { grid-template-columns: repeat(2, 1fr); }
	.book-detail__meta-grid { grid-template-columns: 1fr; }
	.format-tabs { flex-direction: column; }
}

/* ============================================================
   PRINT STYLES
   ============================================================ */
@media print {
	.site-header, .site-footer, .primary-sidebar, .buy-box, .newsletter-section { display: none; }
	.content-area, .book-detail__grid { grid-template-columns: 1fr; }
	body { font-size: 12pt; line-height: 1.6; color: #000; background: #fff; }
	a { color: #000; text-decoration: underline; }
}