/* ===== CSS Variables ===== */
:root {
    /* Colors - Light Theme (Vedabase style) */
    --bg-primary: #f5e6c8;
    --bg-secondary: #efdcb8;
    --bg-tertiary: #e8d4b0;
    --text-primary: #1a1a1a;
    --text-secondary: #3d3d3d;
    --text-muted: #5a5a5a;
    --border-color: #d4bc96;
    --accent-color: #a52a2a;
    --accent-hover: #8b0000;
    --accent-light: #f5e6d3;
    --link-color: #a52a2a;
    --header-bg: #d4bc96;
    --card-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    --card-shadow-hover: 0 8px 24px rgba(0, 0, 0, 0.15);

    /* Typography - matching vedabase.io */
    --font-sans: 'Noto Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-serif: 'Noto Serif', Georgia, 'Times New Roman', serif;
    --font-body: var(--font-serif);
    --font-size-base: 16px;
    --font-scale: 1;
    --line-height: 2;

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;

    /* Layout */
    --max-width: 1200px;
    --content-width: 720px;
    --header-height: 64px;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;

    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
}

/* Dark Theme */
[data-theme="dark"] {
    --bg-primary: #1a1a1a;
    --bg-secondary: #242424;
    --bg-tertiary: #2d2d2d;
    --text-primary: #e8e8e8;
    --text-secondary: #b0b0b0;
    --text-muted: #888888;
    --border-color: #3d3d3d;
    --accent-color: #d4a574;
    --accent-hover: #e6bc8f;
    --accent-light: #3d2d1a;
    --link-color: #d4a574;
    --header-bg: #2d2d2d;
    --card-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
    --card-shadow-hover: 0 8px 24px rgba(0, 0, 0, 0.4);
}

/* ===== Reset & Base ===== */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: calc(var(--font-size-base) * var(--font-scale));
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    line-height: var(--line-height);
    color: var(--text-primary);
    background-color: var(--bg-primary);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    transition: background-color var(--transition-normal), color var(--transition-normal);
}

body.serif {
    --font-body: var(--font-serif);
}

body.justify .prose {
    text-align: justify;
}

a {
    color: var(--link-color);
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

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

/* ===== Header ===== */
.header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--header-bg);
    border-bottom: 1px solid var(--border-color);
    height: var(--header-height);
}

.header-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--text-primary);
    font-weight: 600;
    font-size: 1.25rem;
}

.logo:hover {
    color: var(--text-primary);
}

.logo-icon {
    width: 28px;
    height: 28px;
    color: var(--accent-color);
}

.logo-badge {
    font-size: 0.65rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 2px 6px;
    background: var(--accent-color);
    color: white;
    border-radius: var(--radius-sm);
}

.nav {
    display: flex;
    gap: var(--spacing-xs);
}

.nav-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--text-secondary);
    border-radius: var(--radius-md);
    font-weight: 500;
    font-size: 0.9rem;
    transition: all var(--transition-fast);
}

.nav-link svg {
    width: 18px;
    height: 18px;
}

.nav-link:hover {
    color: var(--text-primary);
    background: var(--bg-secondary);
}

.nav-link.active {
    color: var(--accent-color);
    background: var(--accent-light);
}

.header-actions {
    display: flex;
    gap: var(--spacing-sm);
}

.btn-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-icon:hover {
    background: var(--bg-secondary);
    color: var(--text-primary);
}

.btn-icon svg {
    width: 20px;
    height: 20px;
}

.mobile-menu-toggle {
    display: none;
}

/* ===== Mobile Navigation ===== */
.mobile-nav {
    display: none;
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    padding: var(--spacing-md);
    z-index: 99;
    transform: translateY(-100%);
    opacity: 0;
    transition: transform var(--transition-normal), opacity var(--transition-normal);
}

.mobile-nav.active {
    transform: translateY(0);
    opacity: 1;
}

.mobile-nav-links {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.mobile-nav-links a {
    padding: var(--spacing-md);
    color: var(--text-primary);
    font-weight: 500;
    border-radius: var(--radius-md);
}

.mobile-nav-links a:hover {
    background: var(--bg-secondary);
}

/* ===== Settings Panel ===== */
.settings-panel {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: 320px;
    max-width: 100%;
    background: var(--bg-primary);
    border-left: 1px solid var(--border-color);
    box-shadow: -8px 0 24px rgba(0, 0, 0, 0.1);
    z-index: 200;
    transform: translateX(100%);
    transition: transform var(--transition-normal);
}

.settings-panel.active {
    transform: translateX(0);
}

.settings-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
}

.settings-header h3 {
    font-size: 1.1rem;
    font-weight: 600;
}

.settings-content {
    padding: var(--spacing-lg);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

.setting-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.setting-label {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
}

.setting-label input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--accent-color);
}

.theme-toggle {
    display: flex;
    gap: var(--spacing-sm);
}

.theme-btn {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--border-color);
    background: var(--bg-secondary);
    color: var(--text-secondary);
    border-radius: var(--radius-md);
    cursor: pointer;
    font-size: 0.9rem;
    transition: all var(--transition-fast);
}

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

.theme-btn:hover {
    border-color: var(--accent-color);
}

.theme-btn.active {
    background: var(--accent-light);
    border-color: var(--accent-color);
    color: var(--accent-color);
}

.font-size-control {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.btn-sm {
    padding: var(--spacing-xs) var(--spacing-sm);
    border: 1px solid var(--border-color);
    background: var(--bg-secondary);
    color: var(--text-primary);
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-weight: 600;
    transition: all var(--transition-fast);
}

.btn-sm:hover {
    background: var(--accent-light);
    border-color: var(--accent-color);
}

.font-size-value {
    font-weight: 500;
    min-width: 50px;
    text-align: center;
}

/* ===== Search Overlay ===== */
.search-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    z-index: 300;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding-top: 15vh;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-normal), visibility var(--transition-normal);
}

.search-overlay.active {
    opacity: 1;
    visibility: visible;
}

.search-container {
    width: 100%;
    max-width: 600px;
    padding: 0 var(--spacing-lg);
}

.search-form {
    display: flex;
    align-items: center;
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.search-input {
    flex: 1;
    padding: var(--spacing-lg);
    border: none;
    background: transparent;
    font-size: 1.1rem;
    color: var(--text-primary);
    outline: none;
}

.search-input::placeholder {
    color: var(--text-muted);
}

.search-submit,
.search-close {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    transition: color var(--transition-fast);
}

.search-submit:hover,
.search-close:hover {
    color: var(--accent-color);
}

.search-submit svg,
.search-close svg {
    width: 24px;
    height: 24px;
}

.search-hints {
    margin-top: var(--spacing-md);
    text-align: center;
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.85rem;
}

/* ===== Main Content ===== */
.main {
    flex: 1;
}

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.content-container {
    max-width: 900px;
    margin: 0 auto;
    padding: var(--spacing-xl) var(--spacing-2xl);
}

/* ===== Hero Section ===== */
.hero {
    padding: var(--spacing-2xl) 0;
    text-align: center;
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
    border-bottom: 1px solid var(--border-color);
}

.hero-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* ===== Book Grid ===== */
.section {
    padding: var(--spacing-2xl) 0;
}

.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-xl);
}

.section-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
}

.section-link {
    font-size: 0.9rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.section-link svg {
    width: 16px;
    height: 16px;
}

.book-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: var(--spacing-xl);
}

.book-card {
    display: flex;
    flex-direction: column;
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--card-shadow);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.book-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--card-shadow-hover);
}

.book-cover {
    aspect-ratio: 3/4;
    background: linear-gradient(145deg, var(--accent-light) 0%, var(--bg-tertiary) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-lg);
    text-align: center;
}

.book-cover-placeholder {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--accent-color);
    line-height: 1.4;
}

.book-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.book-info {
    padding: var(--spacing-md);
}

.book-title {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
    line-height: 1.3;
}

.book-meta {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* ===== Library Page ===== */
.library-section {
    margin-bottom: var(--spacing-2xl);
}

.library-section:last-child {
    margin-bottom: 0;
}

.category-header {
    margin-bottom: var(--spacing-lg);
}

.category-title {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.category-description {
    font-size: 0.9rem;
    color: var(--text-muted);
}

/* ===== Book Detail Page ===== */
.book-header {
    padding: var(--spacing-2xl) 0;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
}

.book-header-content {
    display: flex;
    gap: var(--spacing-2xl);
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.book-header-cover {
    flex-shrink: 0;
    width: 200px;
}

.book-header-cover img,
.book-header-cover .book-cover-placeholder {
    width: 100%;
    aspect-ratio: 3/4;
    border-radius: var(--radius-md);
    box-shadow: var(--card-shadow);
}

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

.book-header-title {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
}

.book-header-author {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
}

.book-header-description {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: var(--spacing-lg);
}

.book-actions {
    display: flex;
    gap: var(--spacing-md);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    border: none;
    border-radius: var(--radius-md);
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
}

.btn-primary {
    background: var(--accent-color);
    color: white;
}

.btn-primary:hover {
    background: var(--accent-hover);
    color: white;
}

.btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: var(--bg-secondary);
    border-color: var(--accent-color);
}

.btn svg {
    width: 18px;
    height: 18px;
}

/* ===== Chapter/Verse List ===== */
.chapter-list {
    padding: var(--spacing-xl) 0;
}

.chapter-item {
    display: flex;
    align-items: center;
    padding: var(--spacing-md) var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
    transition: background var(--transition-fast);
}

.chapter-item:hover {
    background: var(--bg-secondary);
}

.chapter-number {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent-light);
    color: var(--accent-color);
    border-radius: var(--radius-md);
    font-weight: 600;
    margin-right: var(--spacing-lg);
}

.chapter-content {
    flex: 1;
}

.chapter-title {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.chapter-subtitle {
    font-size: 0.9rem;
    color: var(--text-muted);
}

.chapter-arrow {
    color: var(--text-muted);
}

.chapter-arrow svg {
    width: 20px;
    height: 20px;
}

/* ===== Reading Page ===== */
.reading-container {
    max-width: var(--content-width);
    margin: 0 auto;
    padding: var(--spacing-2xl) var(--spacing-lg);
}

.reading-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) 0;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: var(--spacing-xl);
}

.reading-nav-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--text-secondary);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.reading-nav-link:hover {
    background: var(--bg-secondary);
    color: var(--text-primary);
}

.reading-nav-link svg {
    width: 18px;
    height: 18px;
}

.verse-block {
    margin-bottom: var(--spacing-2xl);
    padding-bottom: var(--spacing-xl);
    border-bottom: 1px solid var(--border-color);
}

.verse-number {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--accent-color);
    margin-bottom: var(--spacing-md);
}

.verse-sanskrit {
    font-size: 1.2rem;
    font-style: italic;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    line-height: 1.8;
}

.verse-synonyms {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
}

.verse-translation {
    font-size: 1.1rem;
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-md);
    background: var(--bg-secondary);
    border-left: 3px solid var(--accent-color);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.verse-purport {
    color: var(--text-primary);
    line-height: 1.8;
}

.verse-purport p {
    margin-bottom: var(--spacing-md);
}

.verse-purport p:last-child {
    margin-bottom: 0;
}

/* ===== Search Results ===== */
.search-results {
    padding: var(--spacing-xl) 0;
}

.search-results-header {
    margin-bottom: var(--spacing-xl);
}

.search-results-count {
    font-size: 0.9rem;
    color: var(--text-muted);
}

.search-result-item {
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
    transition: background var(--transition-fast);
}

.search-result-item:hover {
    background: var(--bg-secondary);
}

.search-result-source {
    font-size: 0.85rem;
    color: var(--accent-color);
    margin-bottom: var(--spacing-xs);
}

.search-result-title {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.search-result-excerpt {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.search-result-excerpt mark {
    background: var(--accent-light);
    color: var(--accent-color);
    padding: 0 2px;
}

/* ===== Footer ===== */
.footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
    margin-top: auto;
}

.footer-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-2xl);
}

.footer-section h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.footer-section p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.footer-section ul {
    list-style: none;
}

.footer-section li {
    margin-bottom: var(--spacing-sm);
}

.footer-section a {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.footer-section a:hover {
    color: var(--accent-color);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--border-color);
}

.footer-bottom p {
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
    :root {
        --header-height: 56px;
    }

    .nav {
        display: none;
    }

    .mobile-menu-toggle {
        display: flex;
    }

    .mobile-nav {
        display: block;
    }

    .hero-title {
        font-size: 1.8rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .book-grid {
        grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
        gap: var(--spacing-md);
    }

    .book-header-content {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .book-header-cover {
        width: 150px;
    }

    .book-header-title {
        font-size: 1.5rem;
    }

    .book-actions {
        justify-content: center;
        flex-wrap: wrap;
    }

    .reading-container {
        padding: var(--spacing-lg);
    }

    .settings-panel {
        width: 100%;
    }
}

@media (max-width: 480px) {
    .book-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
}

/* ===== Prose Content ===== */
.prose {
    font-size: 1rem;
    line-height: 1.8;
    color: var(--text-primary);
}

.prose h1,
.prose h2,
.prose h3,
.prose h4 {
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
    font-weight: 600;
    line-height: 1.3;
}

.prose h1 {
    font-size: 1.8rem;
}

.prose h2 {
    font-size: 1.5rem;
}

.prose h3 {
    font-size: 1.25rem;
}

.prose p {
    margin-bottom: var(--spacing-md);
}

.prose blockquote {
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--bg-secondary);
    border-left: 3px solid var(--accent-color);
    margin: var(--spacing-lg) 0;
    font-style: italic;
}

.prose ul,
.prose ol {
    margin: var(--spacing-md) 0;
    padding-left: var(--spacing-xl);
}

.prose li {
    margin-bottom: var(--spacing-sm);
}

/* ===== Utilities ===== */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

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

.mt-lg {
    margin-top: var(--spacing-lg);
}

.mb-lg {
    margin-bottom: var(--spacing-lg);
}

/* ===== Loading State ===== */
.loading {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-2xl);
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border-color);
    border-top-color: var(--accent-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* ===== Breadcrumbs ===== */
.breadcrumbs {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-lg) 0;
    margin-bottom: var(--spacing-lg);
    font-size: 0.95rem;
    color: var(--text-muted);
}

.breadcrumbs a {
    color: var(--text-secondary);
}

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

.breadcrumbs-separator {
    color: var(--text-muted);
}

/* ===== Book Page Styles ===== */
.book-page-header {
    text-align: center;
    padding: var(--spacing-xl) 0;
    margin-bottom: var(--spacing-lg);
}

.book-page-title {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.book-page-author {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
}

.book-page-description {
    font-size: 0.95rem;
    color: var(--text-muted);
    max-width: 600px;
    margin: 0 auto;
}

.book-download-section {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

/* ===== View Options ===== */
.view-options {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-md) 0;
    border-bottom: 1px solid var(--border-color);
}

.view-btn {
    padding: var(--spacing-xs) var(--spacing-md);
    border: 1px solid var(--border-color);
    background: var(--bg-primary);
    color: var(--text-secondary);
    border-radius: var(--radius-md);
    font-size: 0.85rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.view-btn:hover {
    border-color: var(--accent-color);
    color: var(--accent-color);
}

.view-btn.active {
    background: var(--accent-color);
    border-color: var(--accent-color);
    color: white;
}

/* ===== Chapter List (Book Page) ===== */
.chapter-list-container {
    margin-bottom: var(--spacing-xl);
}

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

.chapter-list-item {
    border-bottom: 1px solid var(--border-color);
}

.chapter-list-item:first-child {
    border-top: 1px solid var(--border-color);
}

.chapter-list-link {
    display: block;
    padding: var(--spacing-md) var(--spacing-sm);
    color: var(--text-primary);
    transition: background var(--transition-fast);
}

.chapter-list-link:hover {
    background: var(--bg-secondary);
    color: var(--text-primary);
}

.chapter-list-number {
    font-weight: 600;
    display: block;
    margin-bottom: var(--spacing-xs);
}

.chapter-list-subtitle {
    font-size: 0.9rem;
    color: var(--text-muted);
    display: block;
}

/* ===== Pager Navigation ===== */
.pager {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-lg) 0;
    border-top: 1px solid var(--border-color);
    margin-top: var(--spacing-xl);
    gap: var(--spacing-md);
}

.pager-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--text-secondary);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    text-decoration: none;
}

.pager-link:hover {
    background: var(--bg-secondary);
    color: var(--accent-color);
}

.pager-link svg {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

.pager-label {
    display: flex;
    flex-direction: column;
}

.pager-direction {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
}

.pager-title {
    font-weight: 500;
    font-size: 0.9rem;
}

.pager-contents {
    flex-shrink: 0;
}

.pager-disabled {
    opacity: 0.5;
    cursor: default;
}

.pager-disabled:hover {
    background: transparent;
    color: var(--text-secondary);
}

/* ===== Verse Page Styles ===== */
.verse-page-header {
    text-align: center;
    padding: var(--spacing-lg) 0;
    margin-bottom: var(--spacing-md);
}

.verse-page-ref {
    font-size: 0.85rem;
    color: var(--accent-color);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-sm);
}

.verse-page-title {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.verse-page-subtitle {
    font-size: 1rem;
    color: var(--text-muted);
}

/* ===== Verse Content Sections ===== */
.verse-content {
    padding-bottom: var(--spacing-xl);
}

.verse-block {
    margin-bottom: var(--spacing-2xl);
    padding-bottom: var(--spacing-2xl);
    border-bottom: 1px solid var(--border-color);
}

.verse-block:last-child {
    border-bottom: none;
}

.verse-ref {
    margin-bottom: var(--spacing-lg);
}

.verse-ref-text {
    display: inline-block;
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--accent-color);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--accent-light);
    border-radius: var(--radius-sm);
}

.verse-devanagari {
    font-size: 1.4rem;
    line-height: 2;
    text-align: center;
    margin-bottom: var(--spacing-lg);
    color: var(--text-primary);
}

.verse-sanskrit {
    font-size: 1.1rem;
    font-style: italic;
    line-height: 1.5;
    text-align: center;
    margin-bottom: var(--spacing-lg);
    color: var(--text-primary);
}

.verse-section-label {
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-muted);
    margin-bottom: var(--spacing-sm);
}

.verse-synonyms-section {
    margin-bottom: var(--spacing-lg);
}

.verse-synonyms {
    font-size: 0.95rem;
    line-height: 1.7;
    color: var(--text-secondary);
}

.verse-synonyms em,
.verse-synonyms i {
    color: var(--accent-color);
    font-style: normal;
}

.verse-translation-section {
    margin-bottom: var(--spacing-lg);
}

.verse-translation {
    font-size: 1.1rem;
    font-weight: 500;
    line-height: 1.7;
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--bg-secondary);
    border-left: 4px solid var(--accent-color);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

.verse-purport-section {
    margin-top: var(--spacing-xl);
}

.verse-purport {
    line-height: 1.8;
}

.verse-purport p {
    margin-bottom: var(--spacing-md);
    text-align: justify;
}

.verse-purport p:last-child {
    margin-bottom: 0;
}

/* ===== View Modes ===== */
.verse-content.view-advanced .verse-section-label {
    display: block;
}

.verse-content.view-default .verse-section-label {
    display: none;
}

.verse-content.view-dual {
    /* Future: side-by-side Sanskrit/English */
}

/* ===== Empty State ===== */
.empty-state {
    text-align: center;
    padding: var(--spacing-2xl);
    color: var(--text-muted);
}

.empty-state p {
    margin-bottom: var(--spacing-sm);
}

/* ===== Responsive Pager ===== */
@media (max-width: 768px) {
    .pager {
        flex-wrap: wrap;
    }

    .pager-link {
        flex: 1;
        min-width: 120px;
    }

    .pager-contents {
        order: -1;
        flex: 0 0 100%;
        justify-content: center;
        margin-bottom: var(--spacing-md);
    }

    .pager-prev {
        justify-content: flex-start;
    }

    .pager-next {
        justify-content: flex-end;
    }

    .view-options {
        flex-wrap: wrap;
    }

    .verse-page-title {
        font-size: 1.4rem;
    }
}

/* ===== Chapter Header ===== */
.chapter-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
    padding: var(--spacing-xl) 0;
}

.chapter-label {
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
}

.chapter-title {
    font-size: 2.5rem;
    font-weight: 400;
    font-style: italic;
    color: var(--text-primary);
    line-height: 1.3;
}

/* ===== Text List ===== */
.text-list {
    max-width: var(--content-width);
    margin: 0 auto;
}

.text-item {
    display: block;
    padding: var(--spacing-lg) 0;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.text-item:hover {
    color: var(--link-color);
}

.text-item:first-child {
    padding-top: 0;
}

.text-number {
    color: var(--link-color);
    font-weight: 600;
    margin-right: var(--spacing-sm);
}

.text-preview {
    color: inherit;
}

/* ===== Canto List (for SB, CC) ===== */
.canto-list {
    max-width: 800px;
    margin: 0 auto;
    padding: var(--spacing-2xl) var(--spacing-2xl);
}

.canto-item {
    display: block;
    padding: var(--spacing-lg) 0;
    color: var(--link-color);
    text-decoration: none;
    font-size: 1.3rem;
    line-height: 1.7;
    transition: color var(--transition-fast);
}

.canto-item:hover {
    color: var(--accent-hover);
}

.canto-title {
    font-weight: 400;
}

/* ===== Canto Header ===== */
.canto-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
    padding: var(--spacing-xl) 0;
}

.canto-label {
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
}

.canto-header .canto-title {
    font-size: 2.5rem;
    font-weight: 400;
    font-style: italic;
    color: var(--text-primary);
    line-height: 1.3;
}

/* ===== Chapter List (within Canto) ===== */
.chapter-list {
    max-width: 800px;
    margin: 0 auto;
    padding: var(--spacing-2xl) var(--spacing-2xl);
}

.chapter-item {
    display: block;
    padding: var(--spacing-lg) 0;
    border-bottom: 1px solid var(--border-color);
    color: var(--link-color);
    text-decoration: none;
    font-size: 1.2rem;
    line-height: 1.7;
    transition: color var(--transition-fast);
}

.chapter-item:first-child {
    border-top: 1px solid var(--border-color);
}

.chapter-item:hover {
    color: var(--accent-hover);
}

.chapter-item .chapter-number {
    display: inline;
    font-weight: 500;
    margin-right: 1.5rem;
}

.chapter-item .chapter-title {
    display: inline;
    font-size: inherit;
    font-weight: 400;
    font-style: italic;
}

/* ===== Bookmark Button ===== */
.view-options {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-xl);
    flex-wrap: wrap;
}

.view-spacer {
    flex: 1;
}

.bookmark-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-family: var(--font-sans);
    font-size: 0.875rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.bookmark-btn:hover {
    border-color: var(--link-color);
    color: var(--link-color);
}

.bookmark-btn.bookmarked {
    background: var(--link-color);
    border-color: var(--link-color);
    color: white;
}

.bookmark-btn.bookmarked .bookmark-icon {
    fill: white;
}

.bookmark-icon {
    width: 18px;
    height: 18px;
}

.bookmark-btn.bookmarked .bookmark-icon {
    fill: currentColor;
}

/* ===== Bookmarks Page ===== */
.bookmarks-container {
    max-width: var(--content-width);
    margin: 0 auto;
}

.bookmarks-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.bookmark-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
}

.bookmark-link {
    flex: 1;
    text-decoration: none;
    color: inherit;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.bookmark-link:hover .bookmark-ref {
    text-decoration: underline;
}

.bookmark-ref {
    color: var(--link-color);
    font-weight: 600;
    font-size: 1.1rem;
}

.bookmark-preview {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.5;
}

.bookmark-remove {
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: var(--spacing-xs);
    transition: color var(--transition-fast);
}

.bookmark-remove:hover {
    color: var(--accent-color);
}

.no-bookmarks {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-2xl);
    color: var(--text-muted);
    text-align: center;
}

.no-bookmarks svg {
    margin-bottom: var(--spacing-md);
    opacity: 0.5;
}

.no-bookmarks-hint {
    font-size: 0.9rem;
    margin-top: var(--spacing-sm);
}

.page-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.page-header h1 {
    font-size: 2rem;
    margin-bottom: var(--spacing-sm);
}

.page-description {
    color: var(--text-secondary);
}

/* ===== Single Verse Page ===== */
.single-verse {
    max-width: var(--content-width);
    margin: 0 auto;
}

.single-verse .verse-devanagari {
    font-size: 1.25rem;
    text-align: center;
    margin-bottom: var(--spacing-lg);
    line-height: 2;
}

.single-verse .verse-sanskrit {
    font-size: 1.1rem;
    text-align: center;
    font-style: italic;
    margin-bottom: var(--spacing-xl);
    line-height: 1.6;
}

.single-verse .verse-sanskrit em {
    font-style: italic;
}

.single-verse .verse-section-label {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    text-align: center;
}

.single-verse .verse-synonyms-section {
    margin-bottom: var(--spacing-xl);
}

.single-verse .verse-synonyms {
    text-align: justify;
    line-height: 2;
}

.single-verse .verse-synonyms em {
    font-style: italic;
}

.single-verse .verse-translation-section {
    margin-bottom: var(--spacing-xl);
}

.single-verse .verse-translation {
    text-align: justify;
    line-height: 2;
    font-weight: 500;
}

.single-verse .verse-purport-section {
    margin-bottom: var(--spacing-xl);
}

.single-verse .verse-purport {
    text-align: justify;
}

.single-verse .verse-purport p {
    margin-bottom: var(--spacing-lg);
    line-height: 2;
}

.single-verse .verse-purport em {
    font-style: italic;
}