/* ==========================================================================
   Robert A. Heinlein Reference Archives Stylesheet
   Pure Vanilla CSS - Zero external framework dependencies
   ========================================================================== */

:root {
    --bg-base: #0b0f17;
    --bg-surface: #121824;
    --bg-card: #182030;
    --bg-card-hover: #1f2a3f;
    --bg-inset: #0e1420;
    
    --border: #26334a;
    --border-subtle: #1c2738;
    --border-highlight: #3a4d6f;
    
    --text-primary: #f0f4fc;
    --text-secondary: #9cb0cc;
    --text-muted: #627794;
    
    --accent-gold: #e5a93b;
    --accent-gold-hover: #f3be58;
    --accent-gold-dim: rgba(229, 169, 59, 0.12);
    
    --accent-blue: #38bdf8;
    --accent-blue-dim: rgba(56, 189, 248, 0.12);
    --accent-green: #34d399;
    --accent-green-dim: rgba(52, 211, 153, 0.12);
    --accent-red: #f87171;
    --accent-purple: #c084fc;
    
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.5);
    
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-pill: 9999px;
    
    --font-main: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
    
    --max-w: 1200px;
}

[data-theme="light"] {
    --bg-base: #f8fafc;
    --bg-surface: #ffffff;
    --bg-card: #ffffff;
    --bg-card-hover: #f1f5f9;
    --bg-inset: #e2e8f0;
    
    --border: #cbd5e1;
    --border-subtle: #e2e8f0;
    --border-highlight: #94a3b8;
    
    --text-primary: #0f172a;
    --text-secondary: #334155;
    --text-muted: #64748b;
    
    --accent-gold: #b47514;
    --accent-gold-hover: #96600c;
    --accent-gold-dim: rgba(180, 117, 20, 0.12);
    
    --accent-blue: #0284c7;
    --accent-blue-dim: rgba(2, 132, 199, 0.1);
    --accent-green: #059669;
    --accent-green-dim: rgba(5, 150, 105, 0.1);
    --accent-red: #dc2626;
    --accent-purple: #7e22ce;
    
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 10px 20px rgba(0, 0, 0, 0.08);
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-main);
    background-color: var(--bg-base);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    -webkit-font-smoothing: antialiased;
}

a {
    color: var(--accent-gold);
    text-decoration: none;
    transition: color 0.15s ease;
}

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

.container {
    width: 100%;
    max-width: var(--max-w);
    margin-left: auto;
    margin-right: auto;
    padding-left: 1.5rem;
    padding-right: 1.5rem;
}

/* Header & Navigation */
.site-header {
    background-color: var(--bg-surface);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(8px);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--text-primary);
    text-decoration: none;
}

.brand-icon {
    color: var(--accent-gold);
    display: flex;
    align-items: center;
}

.brand-text {
    display: flex;
    flex-direction: column;
}

.brand-title {
    font-size: 1.05rem;
    font-weight: 700;
    letter-spacing: -0.01em;
    line-height: 1.1;
}

.brand-sub {
    font-size: 0.65rem;
    letter-spacing: 0.14em;
    color: var(--accent-gold);
    font-weight: 700;
}

.nav-list {
    display: flex;
    list-style: none;
    gap: 0.5rem;
}

.nav-link {
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
    padding: 0.45rem 0.75rem;
    border-radius: var(--radius-sm);
    transition: all 0.15s ease;
}

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

.nav-link.active {
    color: var(--accent-gold);
    background-color: var(--accent-gold-dim);
    font-weight: 600;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.theme-btn {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-secondary);
    width: 38px;
    height: 38px;
    border-radius: var(--radius-md);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

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

[data-theme="light"] .theme-icon-dark { display: none; }
[data-theme="light"] .theme-icon-light { display: block; }
:not([data-theme="light"]) .theme-icon-dark { display: block; }
:not([data-theme="light"]) .theme-icon-light { display: none; }

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    justify-content: space-around;
    width: 38px;
    height: 38px;
    background: transparent;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 8px;
    cursor: pointer;
}

.mobile-menu-btn span {
    width: 100%;
    height: 2px;
    background-color: var(--text-primary);
    transition: 0.2s;
}

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

/* Page Headers */
.page-header {
    background: linear-gradient(180deg, var(--bg-surface) 0%, var(--bg-base) 100%);
    border-bottom: 1px solid var(--border);
    padding: 3rem 0 2.5rem;
}

.page-tag {
    display: inline-block;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    color: var(--accent-gold);
    margin-bottom: 0.5rem;
    text-transform: uppercase;
}

.page-title {
    font-size: 2.25rem;
    font-weight: 800;
    line-height: 1.2;
    letter-spacing: -0.02em;
    margin-bottom: 0.75rem;
}

.page-desc {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 760px;
    line-height: 1.6;
}

/* Hero Section */
.hero-section {
    padding: 4.5rem 0 3.5rem;
    background: radial-gradient(circle at top right, rgba(229, 169, 59, 0.08) 0%, transparent 60%),
                linear-gradient(180deg, var(--bg-surface) 0%, var(--bg-base) 100%);
    border-bottom: 1px solid var(--border);
    text-align: center;
}

.hero-container {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.35rem 0.9rem;
    border-radius: var(--radius-pill);
    background-color: var(--bg-card);
    border: 1px solid var(--border);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    color: var(--accent-gold);
    margin-bottom: 1.5rem;
}

.badge-dot {
    width: 6px;
    height: 6px;
    background-color: var(--accent-gold);
    border-radius: 50%;
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 900;
    letter-spacing: -0.03em;
    line-height: 1.1;
    margin-bottom: 0.5rem;
    background: linear-gradient(135deg, var(--text-primary) 30%, var(--accent-gold) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--accent-gold);
    font-weight: 600;
    margin-bottom: 1.25rem;
}

.hero-lead {
    font-size: 1.15rem;
    color: var(--text-secondary);
    max-width: 720px;
    margin-bottom: 2rem;
    line-height: 1.7;
}

.hero-actions {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
    justify-content: center;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-size: 0.92rem;
    font-weight: 600;
    padding: 0.65rem 1.25rem;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.15s ease;
    border: 1px solid transparent;
    text-decoration: none;
}

.btn-primary {
    background-color: var(--accent-gold);
    color: #0b0f17;
    border-color: var(--accent-gold);
}

.btn-primary:hover {
    background-color: var(--accent-gold-hover);
    color: #0b0f17;
    transform: translateY(-1px);
}

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

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

.btn-sm {
    font-size: 0.8rem;
    padding: 0.4rem 0.85rem;
}

/* Stats Strip */
.stats-strip {
    border-bottom: 1px solid var(--border);
    background-color: var(--bg-surface);
    padding: 1.5rem 0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

.stat-card {
    text-align: center;
    padding: 0.5rem;
}

.stat-number {
    display: block;
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--accent-gold);
    line-height: 1;
    margin-bottom: 0.25rem;
    font-family: var(--font-mono);
}

.stat-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 600;
}

/* Sections */
.section {
    padding: 4rem 0;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: 2rem;
}

.section-tag {
    display: block;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    color: var(--accent-gold);
    margin-bottom: 0.35rem;
    text-transform: uppercase;
}

.section-title {
    font-size: 1.85rem;
    font-weight: 800;
    letter-spacing: -0.01em;
}

.section-link {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--accent-gold);
}

/* Books Grid */
.books-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 1.5rem;
}

.book-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    transition: all 0.2s ease;
}

.book-card:hover {
    border-color: var(--accent-gold);
    background-color: var(--bg-card-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.book-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.75rem;
}

.book-year {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--text-muted);
}

.book-category {
    font-size: 0.72rem;
    font-weight: 700;
    padding: 0.2rem 0.6rem;
    border-radius: var(--radius-pill);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.book-category.juvenile {
    background-color: var(--accent-blue-dim);
    color: var(--accent-blue);
}

.book-category.novel {
    background-color: var(--accent-gold-dim);
    color: var(--accent-gold);
}

.book-category.posthumous {
    background-color: rgba(192, 132, 252, 0.12);
    color: var(--accent-purple);
}

.book-title {
    font-size: 1.25rem;
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: 0.5rem;
}

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

.book-title a:hover {
    color: var(--accent-gold);
}

.book-awards {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin-bottom: 0.75rem;
}

.award-chip {
    font-size: 0.7rem;
    font-weight: 600;
    background-color: var(--accent-gold-dim);
    color: var(--accent-gold);
    padding: 0.15rem 0.5rem;
    border-radius: var(--radius-sm);
    border: 1px solid rgba(229, 169, 59, 0.25);
}

.award-chip-mini {
    font-size: 0.68rem;
    font-weight: 600;
    background-color: var(--accent-gold-dim);
    color: var(--accent-gold);
    padding: 0.1rem 0.4rem;
    border-radius: var(--radius-sm);
    display: inline-block;
}

.book-synopsis {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 1.25rem;
    flex-grow: 1;
}

.book-characters {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-bottom: 0.75rem;
    line-height: 1.4;
}

.book-characters strong {
    color: var(--text-secondary);
}

.book-card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 1rem;
    border-top: 1px solid var(--border-subtle);
}

.book-themes-preview {
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem;
}

.theme-tag {
    font-size: 0.72rem;
    background-color: var(--bg-surface);
    border: 1px solid var(--border);
    color: var(--text-muted);
    padding: 0.2rem 0.55rem;
    border-radius: var(--radius-sm);
    transition: all 0.15s ease;
}

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

.book-read-more {
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--accent-gold);
    white-space: nowrap;
}

/* Quote Spotlight on Home */
.section-quote {
    background-color: var(--bg-surface);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.quote-spotlight {
    max-width: 860px;
    margin: 0 auto;
    text-align: center;
    padding: 1.5rem 0;
}

.quote-badge {
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    color: var(--accent-gold);
    text-transform: uppercase;
    margin-bottom: 1.25rem;
}

.quote-text {
    font-size: 1.35rem;
    line-height: 1.65;
    font-style: italic;
    color: var(--text-primary);
    margin-bottom: 1.25rem;
}

.quote-meta {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.quote-speaker {
    font-weight: 700;
    color: var(--accent-gold);
}

.quote-dot {
    margin: 0 0.5rem;
    color: var(--text-muted);
}

.quote-action {
    display: flex;
    gap: 0.75rem;
    justify-content: center;
}

/* Pathways Grid */
.pathways-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 1.5rem;
}

.pathway-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1.75rem;
    display: flex;
    flex-direction: column;
    color: var(--text-primary);
    transition: all 0.2s ease;
}

.pathway-card:hover {
    border-color: var(--accent-gold);
    background-color: var(--bg-card-hover);
    transform: translateY(-2px);
    color: var(--text-primary);
}

.pathway-icon {
    color: var(--accent-gold);
    margin-bottom: 1rem;
}

.pathway-card h3 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.pathway-card p {
    font-size: 0.88rem;
    color: var(--text-secondary);
    line-height: 1.5;
    margin-bottom: 1.25rem;
    flex-grow: 1;
}

.pathway-link {
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--accent-gold);
}

/* Catalog Filter Toolbar */
.catalog-container {
    padding-top: 2rem;
    padding-bottom: 4rem;
}

.filter-toolbar {
    margin-bottom: 2rem;
    background-color: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1.25rem;
}

.search-box {
    position: relative;
    margin-bottom: 1rem;
}

.search-icon {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    pointer-events: none;
}

.search-input {
    width: 100%;
    background-color: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 0.75rem 2.75rem 0.75rem 2.75rem;
    font-size: 0.95rem;
    color: var(--text-primary);
    outline: none;
    transition: border-color 0.15s ease;
}

.search-input:focus {
    border-color: var(--accent-gold);
}

.search-clear {
    position: absolute;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 1.35rem;
    cursor: pointer;
}

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

.filter-groups {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 0.75rem;
}

.filter-pills {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.filter-pill {
    background-color: var(--bg-card);
    border: 1px solid var(--border);
    color: var(--text-secondary);
    font-size: 0.82rem;
    font-weight: 600;
    padding: 0.4rem 0.85rem;
    border-radius: var(--radius-pill);
    cursor: pointer;
    transition: all 0.15s ease;
}

.filter-pill:hover {
    border-color: var(--accent-gold);
    color: var(--text-primary);
}

.filter-pill.active {
    background-color: var(--accent-gold);
    border-color: var(--accent-gold);
    color: #0b0f17;
}

.sort-select-wrapper {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.sort-label {
    font-size: 0.85rem;
    color: var(--text-muted);
    font-weight: 600;
}

.sort-select {
    background-color: var(--bg-card);
    border: 1px solid var(--border);
    color: var(--text-primary);
    font-size: 0.85rem;
    padding: 0.4rem 0.75rem;
    border-radius: var(--radius-md);
    outline: none;
    cursor: pointer;
}

.sort-select:focus {
    border-color: var(--accent-gold);
}

.catalog-status {
    font-size: 0.82rem;
    color: var(--text-muted);
    padding-top: 0.5rem;
    border-top: 1px solid var(--border-subtle);
}

.catalog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 1.5rem;
}

/* Shelf Checkbox on Catalog Card */
.shelf-checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    user-select: none;
    font-size: 0.8rem;
    color: var(--text-muted);
}

.shelf-checkbox-label input {
    display: none;
}

.check-custom {
    width: 16px;
    height: 16px;
    border: 1.5px solid var(--border-highlight);
    border-radius: 3px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.15s ease;
}

.shelf-checkbox-label input:checked + .check-custom {
    background-color: var(--accent-green);
    border-color: var(--accent-green);
}

.shelf-checkbox-label input:checked + .check-custom::after {
    content: "✓";
    color: #0b0f17;
    font-size: 11px;
    font-weight: 800;
}

.shelf-checkbox-label input:checked ~ .shelf-label-text {
    color: var(--accent-green);
    font-weight: 600;
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 4rem 1rem;
    background-color: var(--bg-card);
    border: 1px dashed var(--border);
    border-radius: var(--radius-lg);
    margin: 2rem 0;
}

.empty-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.empty-desc {
    color: var(--text-muted);
    margin-bottom: 1.5rem;
}

/* Book Detail Page */
.book-detail-header {
    background: linear-gradient(180deg, var(--bg-surface) 0%, var(--bg-base) 100%);
    border-bottom: 1px solid var(--border);
    padding: 2.5rem 0 2rem;
}

.breadcrumb {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 1.25rem;
}

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

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

.breadcrumb .sep {
    color: var(--text-muted);
}

.breadcrumb .current {
    color: var(--text-primary);
    font-weight: 600;
}

.book-detail-meta {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
}

.book-publisher {
    font-size: 0.82rem;
    color: var(--text-muted);
}

.book-detail-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 900;
    letter-spacing: -0.02em;
    line-height: 1.15;
    margin-bottom: 1rem;
}

.book-detail-body {
    padding-top: 2.5rem;
    padding-bottom: 4rem;
}

.book-layout {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 2.5rem;
    margin-bottom: 3rem;
}

.dossier-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 2rem;
    margin-bottom: 2rem;
}

.dossier-heading {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--accent-gold);
    border-bottom: 1px solid var(--border-subtle);
    padding-bottom: 0.5rem;
}

.dossier-prose p {
    font-size: 1.05rem;
    line-height: 1.75;
    color: var(--text-primary);
}

.dossier-quote {
    background-color: var(--bg-surface);
    border-left: 4px solid var(--accent-gold);
    border-radius: var(--radius-md);
    padding: 1.75rem;
    margin-bottom: 2rem;
    position: relative;
}

.quote-icon {
    color: var(--accent-gold);
    opacity: 0.3;
    position: absolute;
    top: 1rem;
    right: 1.5rem;
}

.dossier-quote blockquote {
    font-size: 1.15rem;
    font-style: italic;
    line-height: 1.65;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.quote-cite {
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--accent-gold);
}

/* Sidebar */
.book-sidebar {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.sidebar-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
}

.sidebar-heading {
    font-size: 0.95rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--accent-gold);
}

.shelf-card {
    border-color: var(--accent-gold);
    background-color: var(--bg-surface);
}

.shelf-status-display {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 1rem;
    padding: 0.4rem 0.6rem;
    background-color: var(--bg-card);
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
}

.shelf-action-buttons {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
}

.btn-shelf {
    background-color: var(--accent-green);
    color: #0b0f17;
    border: none;
    font-weight: 700;
    padding: 0.6rem 1rem;
    border-radius: var(--radius-md);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.btn-shelf:hover {
    filter: brightness(1.1);
}

.btn-shelf-secondary {
    background-color: var(--bg-card);
    border: 1px solid var(--border);
    color: var(--text-primary);
    font-weight: 600;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-md);
    cursor: pointer;
}

.btn-shelf-secondary:hover {
    border-color: var(--accent-gold);
    color: var(--accent-gold);
}

.shelf-hint {
    font-size: 0.72rem;
    color: var(--text-muted);
}

.characters-list {
    list-style: none;
}

.character-item {
    display: flex;
    align-items: baseline;
    gap: 0.5rem;
    font-size: 0.9rem;
    padding: 0.3rem 0;
    border-bottom: 1px solid var(--border-subtle);
}

.character-item:last-child {
    border-bottom: none;
}

.char-bullet {
    color: var(--accent-gold);
}

.themes-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
}

.meta-pairs {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.6rem 1rem;
    font-size: 0.85rem;
}

.meta-pairs dt {
    color: var(--text-muted);
    font-weight: 500;
}

.meta-pairs dd {
    color: var(--text-primary);
    font-weight: 600;
}

/* Prev Next Navigation */
.book-prev-next {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid var(--border);
    padding-top: 2rem;
}

.prev-col, .next-col {
    flex: 1;
}

.next-col {
    text-align: right;
}

.nav-prev, .nav-next {
    display: inline-flex;
    flex-direction: column;
}

.nav-arrow {
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-weight: 700;
    color: var(--accent-gold);
}

.nav-work-title {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text-primary);
}

.nav-prev:hover .nav-work-title,
.nav-next:hover .nav-work-title {
    color: var(--accent-gold);
}

/* Timeline View */
.timeline-container {
    padding-top: 2rem;
    padding-bottom: 5rem;
}

.timeline-nav-bar {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.75rem;
    background-color: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1rem 1.25rem;
    margin-bottom: 3rem;
}

.timeline-nav-label {
    font-size: 0.82rem;
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.timeline-nav-links {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.timeline-epoch-btn {
    background-color: var(--bg-card);
    border: 1px solid var(--border);
    color: var(--text-secondary);
    font-size: 0.82rem;
    font-weight: 600;
    padding: 0.35rem 0.75rem;
    border-radius: var(--radius-pill);
    transition: all 0.15s ease;
}

.timeline-epoch-btn:hover {
    border-color: var(--accent-gold);
    color: var(--accent-gold);
}

.timeline-era-block {
    margin-bottom: 3.5rem;
}

.era-header-card {
    background: linear-gradient(135deg, var(--bg-card) 0%, var(--bg-surface) 100%);
    border: 1px solid var(--border);
    border-left: 5px solid var(--accent-gold);
    border-radius: var(--radius-lg);
    padding: 1.75rem;
    margin-bottom: 2rem;
}

.era-period-badge {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--accent-gold);
    margin-bottom: 0.35rem;
}

.era-title {
    font-size: 1.6rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
}

.era-summary {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.era-events {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    padding-left: 1.5rem;
    border-left: 2px solid var(--border);
    margin-left: 1rem;
}

.timeline-event-card {
    position: relative;
    background-color: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    transition: all 0.2s ease;
}

.timeline-event-card:hover {
    border-color: var(--accent-gold);
    background-color: var(--bg-card-hover);
}

.event-marker {
    position: absolute;
    left: -1.5rem;
    top: 1.75rem;
    transform: translateX(-50%);
}

.marker-dot {
    width: 12px;
    height: 12px;
    background-color: var(--accent-gold);
    border-radius: 50%;
    border: 2px solid var(--bg-base);
}

.event-header {
    display: flex;
    align-items: baseline;
    gap: 1rem;
    margin-bottom: 0.5rem;
}

.event-year {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    font-weight: 800;
    color: var(--accent-gold);
    white-space: nowrap;
}

.event-title {
    font-size: 1.15rem;
    font-weight: 700;
}

.event-description {
    font-size: 0.92rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 1rem;
}

.event-meta {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    font-size: 0.82rem;
    padding-top: 0.75rem;
    border-top: 1px solid var(--border-subtle);
}

.meta-label {
    font-weight: 700;
    color: var(--text-muted);
    margin-right: 0.5rem;
}

.work-badge {
    background-color: var(--bg-surface);
    border: 1px solid var(--border);
    color: var(--accent-gold);
    padding: 0.15rem 0.5rem;
    border-radius: var(--radius-sm);
    font-size: 0.78rem;
    font-weight: 600;
    display: inline-block;
}

/* Quotes View */
.quotes-container {
    padding-top: 2rem;
    padding-bottom: 5rem;
}

.quotes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
    gap: 1.5rem;
}

.quote-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1.75rem;
    display: flex;
    flex-direction: column;
    transition: all 0.2s ease;
}

.quote-card:hover {
    border-color: var(--accent-gold);
    background-color: var(--bg-card-hover);
    box-shadow: var(--shadow-sm);
}

.quote-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.quote-cat-badge {
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--accent-gold);
}

.btn-copy-quote {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-muted);
    font-size: 0.75rem;
    padding: 0.25rem 0.55rem;
    border-radius: var(--radius-sm);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    transition: all 0.15s ease;
}

.btn-copy-quote:hover {
    color: var(--accent-gold);
    border-color: var(--accent-gold);
}

.quote-body {
    font-size: 1.05rem;
    line-height: 1.6;
    font-style: italic;
    color: var(--text-primary);
    margin-bottom: 1.25rem;
    flex-grow: 1;
}

.quote-attribution {
    padding-top: 0.75rem;
    border-top: 1px solid var(--border-subtle);
}

.speaker-name {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--accent-gold);
}

.source-info {
    font-size: 0.82rem;
    color: var(--text-muted);
}

/* Themes View */
.themes-container {
    padding-top: 2rem;
    padding-bottom: 5rem;
}

.themes-nav-bar {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.75rem;
    background-color: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1rem 1.25rem;
    margin-bottom: 3rem;
}

.themes-stack {
    display: flex;
    flex-direction: column;
    gap: 2.5rem;
}

.theme-dossier-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 2.5rem;
    transition: border-color 0.2s ease;
}

.theme-dossier-card:hover {
    border-color: var(--accent-gold);
}

.theme-header {
    margin-bottom: 1.5rem;
    border-bottom: 1px solid var(--border-subtle);
    padding-bottom: 1rem;
}

.theme-tagline {
    font-size: 0.82rem;
    font-weight: 700;
    color: var(--accent-gold);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    display: block;
    margin-bottom: 0.25rem;
}

.theme-title {
    font-size: 1.85rem;
    font-weight: 800;
    letter-spacing: -0.01em;
    margin-bottom: 0.5rem;
}

.theme-summary {
    font-size: 1.05rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.theme-details p {
    font-size: 1rem;
    line-height: 1.75;
    color: var(--text-primary);
    margin-bottom: 1.5rem;
}

.theme-quote-callout {
    background-color: var(--bg-surface);
    border-left: 3px solid var(--accent-gold);
    padding: 1.25rem 1.5rem;
    border-radius: var(--radius-md);
    margin-bottom: 1.5rem;
    font-style: italic;
    font-size: 1rem;
    line-height: 1.6;
    color: var(--text-primary);
}

.theme-footer {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.75rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-subtle);
}

.theme-footer-label {
    font-size: 0.82rem;
    font-weight: 700;
    color: var(--text-muted);
}

.theme-works-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
}

/* Checklist / Personal Shelf */
.checklist-container {
    padding-top: 2rem;
    padding-bottom: 5rem;
}

.shelf-overview-card {
    background: linear-gradient(135deg, var(--bg-card) 0%, var(--bg-surface) 100%);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 2rem;
    margin-bottom: 2rem;
}

.shelf-progress-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 1.25rem;
}

.shelf-progress-title {
    font-size: 1.5rem;
    font-weight: 800;
    margin-bottom: 0.25rem;
}

.shelf-progress-stats {
    font-size: 0.95rem;
    color: var(--accent-gold);
    font-weight: 600;
}

.shelf-actions-group {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.progress-bar-track {
    width: 100%;
    height: 10px;
    background-color: var(--bg-base);
    border-radius: var(--radius-pill);
    overflow: hidden;
    margin-bottom: 1.5rem;
    border: 1px solid var(--border-subtle);
}

.progress-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--accent-gold) 0%, var(--accent-green) 100%);
    border-radius: var(--radius-pill);
    transition: width 0.4s ease;
}

.shelf-counters-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
}

.counter-box {
    background-color: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 0.85rem;
    text-align: center;
}

.counter-val {
    display: block;
    font-family: var(--font-mono);
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--text-primary);
    line-height: 1;
    margin-bottom: 0.25rem;
}

.counter-lbl {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    font-weight: 600;
}

/* Checklist Table */
.checklist-table-wrapper {
    background-color: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow-x: auto;
}

.checklist-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.92rem;
    text-align: left;
}

.checklist-table th {
    background-color: var(--bg-surface);
    padding: 0.85rem 1rem;
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.05em;
    border-bottom: 1px solid var(--border);
}

.checklist-table td {
    padding: 0.85rem 1rem;
    border-bottom: 1px solid var(--border-subtle);
    vertical-align: middle;
}

.checklist-row:hover td {
    background-color: var(--bg-card-hover);
}

.checklist-row.status-completed td {
    opacity: 0.8;
}

.checklist-row.status-completed .shelf-book-title a {
    text-decoration: line-through;
    color: var(--text-muted);
}

.col-status {
    width: 50px;
    text-align: center;
}

.btn-shelf-toggle {
    background: transparent;
    border: none;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.status-indicator {
    width: 20px;
    height: 20px;
    border-radius: 4px;
    border: 1.5px solid var(--border-highlight);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: all 0.15s ease;
}

.status-indicator.status-completed {
    background-color: var(--accent-green);
    border-color: var(--accent-green);
}

.status-indicator.status-completed::after {
    content: "✓";
    color: #0b0f17;
    font-weight: 900;
    font-size: 13px;
}

.status-indicator.status-want {
    background-color: var(--accent-blue);
    border-color: var(--accent-blue);
}

.status-indicator.status-want::after {
    content: "+";
    color: #0b0f17;
    font-weight: 900;
    font-size: 15px;
}

.shelf-book-title {
    font-weight: 700;
    font-size: 1rem;
    margin-bottom: 0.2rem;
}

.shelf-book-title a {
    color: var(--text-primary);
}

.shelf-book-title a:hover {
    color: var(--accent-gold);
}

.shelf-book-awards {
    display: flex;
    gap: 0.3rem;
}

.shelf-btn-group {
    display: flex;
    gap: 0.4rem;
}

.btn-action-read, .btn-action-want {
    border: 1px solid var(--border);
    background-color: var(--bg-surface);
    color: var(--text-secondary);
    font-size: 0.75rem;
    padding: 0.3rem 0.6rem;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-weight: 600;
}

.btn-action-read:hover {
    background-color: var(--accent-green);
    border-color: var(--accent-green);
    color: #0b0f17;
}

.btn-action-want:hover {
    background-color: var(--accent-blue);
    border-color: var(--accent-blue);
    color: #0b0f17;
}

/* Modal */
.modal-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 200;
    padding: 1.5rem;
}

.modal-box {
    background-color: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    width: 100%;
    max-width: 500px;
    padding: 2rem;
    box-shadow: var(--shadow-lg);
}

.modal-title {
    font-size: 1.35rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
}

.modal-desc {
    font-size: 0.88rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.modal-textarea {
    width: 100%;
    background-color: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-family: var(--font-mono);
    font-size: 0.85rem;
    padding: 0.75rem;
    outline: none;
    margin-bottom: 1.25rem;
}

.modal-textarea:focus {
    border-color: var(--accent-gold);
}

.modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: 0.75rem;
}

/* Biography View */
.bio-container {
    padding-top: 2rem;
    padding-bottom: 5rem;
}

.bio-hero-card {
    background: linear-gradient(135deg, var(--bg-card) 0%, var(--bg-surface) 100%);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 2.5rem;
    margin-bottom: 3rem;
}

.bio-hero-grid {
    display: grid;
    grid-template-columns: 3fr 2fr;
    gap: 2.5rem;
}

.bio-headline {
    font-size: 1.6rem;
    font-weight: 800;
    margin-bottom: 1rem;
    color: var(--accent-gold);
}

.bio-lead-text {
    font-size: 1.05rem;
    line-height: 1.75;
    color: var(--text-primary);
    margin-bottom: 1.5rem;
}

.bio-key-facts {
    display: grid;
    grid-template-columns: 1fr;
    gap: 0.75rem;
    background-color: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    padding: 1.25rem;
}

.fact-item {
    display: flex;
    flex-direction: column;
}

.fact-label {
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--accent-gold);
    font-weight: 700;
}

.fact-value {
    font-size: 0.92rem;
    color: var(--text-primary);
}

.ginny-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 1.5rem;
}

.ginny-title {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--accent-purple);
    margin-bottom: 0.15rem;
}

.ginny-subtitle {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-family: var(--font-mono);
    margin-bottom: 0.75rem;
}

.ginny-text {
    font-size: 0.88rem;
    line-height: 1.6;
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.ginny-quote {
    font-size: 0.85rem;
    font-style: italic;
    color: var(--text-primary);
    border-left: 2px solid var(--accent-purple);
    padding-left: 0.75rem;
}

.bio-section {
    margin-bottom: 3.5rem;
}

.awards-table-wrapper {
    background-color: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.awards-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.92rem;
}

.awards-table th {
    background-color: var(--bg-surface);
    padding: 0.85rem 1.25rem;
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.05em;
    border-bottom: 1px solid var(--border);
    text-align: left;
}

.awards-table td {
    padding: 0.85rem 1.25rem;
    border-bottom: 1px solid var(--border-subtle);
}

.award-yr {
    font-family: var(--font-mono);
    font-weight: 700;
    color: var(--accent-gold);
    width: 90px;
}

.milestones-timeline {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.milestone-item {
    display: flex;
    gap: 1.5rem;
    align-items: flex-start;
    background-color: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 1.25rem 1.5rem;
    transition: border-color 0.15s ease;
}

.milestone-item:hover {
    border-color: var(--accent-gold);
}

.milestone-year-badge {
    font-family: var(--font-mono);
    font-size: 0.88rem;
    font-weight: 800;
    color: var(--accent-gold);
    background-color: var(--accent-gold-dim);
    padding: 0.3rem 0.6rem;
    border-radius: var(--radius-sm);
    white-space: nowrap;
}

.milestone-body {
    flex-grow: 1;
}

.milestone-title {
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 0.35rem;
}

.milestone-desc {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* 404 Page */
.not-found-container {
    padding: 4rem 1.5rem;
}

.not-found-card {
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
    background-color: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 3rem 2rem;
}

.not-found-icon {
    color: var(--accent-gold);
    margin-bottom: 1.5rem;
}

.not-found-text {
    font-size: 1.05rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 2rem;
}

.not-found-actions {
    display: flex;
    gap: 0.75rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* Footer */
.site-footer {
    background-color: var(--bg-surface);
    border-top: 1px solid var(--border);
    padding: 4rem 0 2rem;
    margin-top: auto;
}

.footer-inner {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 3rem;
    margin-bottom: 2.5rem;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--text-primary);
    margin-bottom: 0.75rem;
}

.footer-logo svg {
    color: var(--accent-gold);
}

.footer-desc {
    font-size: 0.88rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 1rem;
}

.footer-credo {
    font-size: 0.82rem;
    font-style: italic;
    color: var(--accent-gold);
}

.footer-title {
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--accent-gold);
    margin-bottom: 1rem;
}

.footer-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
}

.footer-links a {
    font-size: 0.88rem;
    color: var(--text-secondary);
    transition: color 0.15s ease;
}

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

.footer-colophon {
    font-size: 0.85rem;
    color: var(--text-muted);
    line-height: 1.6;
    margin-bottom: 1rem;
}

.footer-copy {
    font-size: 0.75rem;
    color: var(--text-muted);
    line-height: 1.5;
}

/* Responsive Media Queries */
@media (max-width: 992px) {
    .book-layout {
        grid-template-columns: 1fr;
    }
    .bio-hero-grid {
        grid-template-columns: 1fr;
    }
    .footer-inner {
        grid-template-columns: 1fr 1fr;
        gap: 2rem;
    }
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .site-nav {
        display: none;
        position: absolute;
        top: 64px;
        left: 0;
        right: 0;
        background-color: var(--bg-surface);
        border-bottom: 1px solid var(--border);
        padding: 1rem 1.5rem;
        box-shadow: var(--shadow-lg);
    }

    .site-nav.mobile-open {
        display: block;
    }

    .nav-list {
        flex-direction: column;
        gap: 0.25rem;
    }

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

    .hero-title {
        font-size: 2.2rem;
    }

    .books-grid, .catalog-grid, .quotes-grid {
        grid-template-columns: 1fr;
    }

    .footer-inner {
        grid-template-columns: 1fr;
    }

    .filter-groups {
        flex-direction: column;
        align-items: stretch;
    }

    .sort-select-wrapper {
        justify-content: space-between;
    }

    .shelf-counters-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}