/**
 * Green-Link Design System
 * Based on v3 demo: Forest greens, gold accents, geometric logomark, Crimson Pro serif
 */

:root {
    /* Primary Colors */
    --green-dark: #1a3d1a;
    --green-primary: #2d5a2d;
    --green-light: #4a7c4e;
    --green-pale: #e8f5e9;
    
    /* Accent Colors */
    --accent-gold: #c9a227;
    --accent-gold-light: #e6c86a;
    
    /* Neutral Colors */
    --earth-brown: #5d4e37;
    --warm-bg: #faf8f5;
    --text-dark: #1a1a1a;
    --text-muted: #666;
    --text-light: #999;
    --border: #d4d4d4;
    
    /* Feedback Colors */
    --correction-red: #c62828;
    --success-green: #2e7d32;
    --warning-orange: #ed6c02;
    
    /* Typography */
    --font-serif: 'Crimson Pro', Georgia, serif;
    --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    
    /* Spacing */
    --container-max: 900px;
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow-md: 0 2px 8px rgba(0,0,0,0.08);
    --shadow-lg: 0 4px 16px rgba(0,0,0,0.12);
}

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

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-sans);
    background: var(--warm-bg);
    color: var(--text-dark);
    line-height: 1.6;
}

/* Header */
.header {
    background: var(--green-dark);
    color: white;
    padding: 8px var(--spacing-xl);
    border-bottom: none;
}

.header-pipe {
    height: 6px;
    background: rgb(40, 146, 40);
    width: 100%;
}

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

.logo-link {
    text-decoration: none;
    display: block;
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 0;
}

.logo-icon {
    width: 24px;
    height: 24px;
    object-fit: contain;
    display: block;
    margin-right: 5px;
    transform: translateY(0px);
}

.logo-text {
    font-family: var(--font-serif);
    font-size: 1.6rem;
    font-weight: 500;
    letter-spacing: -0.02em;
}

.logo-text .green {
    color: white;
    font-style: italic;
}

.logo-text .link {
    color: var(--accent-gold);
    font-style: normal;
}

/* Navigation */
.nav {
    display: flex;
    gap: var(--spacing-sm);
}

.nav a {
    color: white;
    text-decoration: none;
    font-size: 0.9rem;
    padding: 0.4rem 0.8rem;
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.1);
    transition: all 0.2s;
}

.nav a:hover {
    background: rgba(255, 255, 255, 0.2);
}

.nav a.active {
    background: var(--green-primary);
}

/* Main Container */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: var(--spacing-xl);
}

/* Book Hero */
.book-hero {
    background: white;
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    display: flex;
    gap: var(--spacing-xl);
    box-shadow: var(--shadow-md);
    margin-bottom: var(--spacing-xl);
}

.book-cover-large {
    width: 150px;
    height: 225px;
    flex-shrink: 0;
    border-radius: var(--radius-sm);
    overflow: hidden;
    background: linear-gradient(135deg, var(--green-primary), var(--green-dark));
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.cover-placeholder {
    color: white;
    font-size: 2rem;
    font-weight: 600;
    text-transform: uppercase;
}

.book-info {
    flex: 1;
}

.book-title {
    font-family: var(--font-serif);
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--green-dark);
    margin-bottom: var(--spacing-sm);
    line-height: 1.3;
}

.book-subtitle {
    font-family: var(--font-serif);
    font-size: 1.2rem;
    color: var(--text-muted);
    font-style: italic;
    margin-bottom: var(--spacing-sm);
}

.book-author {
    font-size: 1.1rem;
    color: var(--text-dark);
    margin-bottom: var(--spacing-xs);
    font-weight: 500;
}

.book-meta {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: var(--spacing-md);
}

/* Tags */
.tags {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
    margin-bottom: var(--spacing-lg);
}

.tag {
    background: var(--green-pale);
    color: var(--green-dark);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
}

/* Hedgehog Ratings */
.hedgehog-ratings {
    background: var(--warm-bg);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
}

.rating-axis {
    margin-bottom: var(--spacing-md);
}

.rating-axis:last-child {
    margin-bottom: 0;
}

.rating-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-bottom: var(--spacing-sm);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 600;
}

.rating-bar {
    height: 6px;
    background: var(--border);
    border-radius: 3px;
    position: relative;
}

.rating-marker {
    position: absolute;
    top: -3px;
    width: 12px;
    height: 12px;
    background: var(--green-primary);
    border-radius: 50%;
    border: 2px solid white;
    box-shadow: var(--shadow-sm);
    transform: translateX(-50%);
}

.rating-ends {
    display: flex;
    justify-content: space-between;
    font-size: 0.7rem;
    color: var(--text-muted);
    margin-top: var(--spacing-xs);
}

/* AI Section (static fallback) */
.ai-section {
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    overflow: hidden;
    margin-bottom: var(--spacing-xl);
}

.ai-header {
    background: var(--green-pale);
    padding: var(--spacing-md) var(--spacing-lg);
    border-bottom: 1px solid var(--border);
}

.ai-header h2 {
    font-size: 1.1rem;
    color: var(--green-dark);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin: 0;
}

.mode-tabs-static {
    display: flex;
    border-bottom: 1px solid var(--border);
    background: var(--warm-bg);
}

.mode-tab {
    flex: 1;
    padding: var(--spacing-md);
    border: none;
    background: transparent;
    cursor: pointer;
    font-size: 0.9rem;
    color: var(--text-muted);
    transition: all 0.2s;
    border-bottom: 3px solid transparent;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
}

.mode-tab.active {
    background: white;
    color: var(--green-primary);
    border-bottom-color: var(--green-primary);
    font-weight: 600;
}

.badge {
    display: inline-block;
    padding: 0.15rem 0.4rem;
    border-radius: 10px;
    font-size: 0.7rem;
    font-weight: 500;
}

.badge-raw { background: #fff3e0; color: #e65100; }
.badge-web { background: #e3f2fd; color: #1565c0; }
.badge-corrected { background: var(--green-pale); color: var(--green-dark); }
.badge-combined { background: var(--green-primary); color: white; }

.mode-content {
    padding: var(--spacing-lg);
}

.mode-description {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px dashed var(--border);
    margin-top: 0;
}

.commentary-text {
    line-height: 1.8;
    color: var(--text-dark);
}

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

.commentary-text p:last-child {
    margin-bottom: 0;
}

.ai-meta {
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border);
    font-size: 0.8rem;
    color: var(--text-muted);
    display: flex;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
}

/* User Comments */
.user-comments {
    background: white;
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
}

.user-comments h3 {
    font-size: 1.1rem;
    margin-bottom: var(--spacing-md);
    color: var(--green-dark);
}

.comments-intro {
    color: var(--text-muted);
    font-style: italic;
}

/* Footer */
.footer {
    background: var(--green-dark);
    color: white;
    padding: var(--spacing-xl);
    text-align: center;
    margin-top: var(--spacing-xl);
}

.footer p {
    opacity: 0.8;
    font-size: 0.9rem;
}

/* Loading State */
.loading {
    text-align: center;
    color: var(--text-muted);
    padding: var(--spacing-xl);
}

/* Mobile Responsive */
@media (max-width: 768px) {
    :root {
        --spacing-xl: 1.5rem;
        --spacing-lg: 1rem;
    }
    
    .header {
        padding: 12px var(--spacing-md);
    }
    
    .header-content {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .nav {
        justify-content: center;
        gap: var(--spacing-md);
    }
    
    .nav a {
        font-size: 0.85rem;
    }
    
    .logo-text {
        font-size: 1.3rem;
    }
    
    .container {
        padding: var(--spacing-md);
    }
    
    .book-hero {
        flex-direction: column;
        padding: var(--spacing-md);
    }
    
    .book-cover-large {
        width: 120px;
        height: 180px;
        margin: 0 auto;
    }
    
    .book-title {
        font-size: 1.4rem;
    }
    
    .mode-tabs-static {
        flex-wrap: wrap;
    }
    
    .mode-tab {
        flex: 1 1 50%;
        padding: 0.75rem 0.5rem;
        font-size: 0.8rem;
    }
    
    .ai-meta {
        flex-direction: column;
        gap: var(--spacing-xs);
    }
}

/* Page Header */
.page-header {
    margin-bottom: var(--spacing-xl);
}

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

.page-header .subtitle {
    color: var(--text-muted);
    font-size: 1.1rem;
}

/* Filters */
.filters {
    margin-bottom: var(--spacing-xl);
}

.search-input {
    width: 100%;
    padding: var(--spacing-md);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    font-size: 1rem;
    margin-bottom: var(--spacing-md);
}

.search-input:disabled {
    background: var(--warm-bg);
    color: var(--text-light);
}

.filter-tags {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.filter-tag {
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: 20px;
    font-size: 0.85rem;
    cursor: pointer;
    border: 1px solid var(--border);
    background: white;
    color: var(--text-muted);
    transition: all 0.2s;
}

.filter-tag:hover,
.filter-tag.active {
    background: var(--green-primary);
    color: white;
    border-color: var(--green-primary);
}

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

.book-card {
    background: white;
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: box-shadow 0.2s;
}

.book-card:hover {
    box-shadow: var(--shadow-md);
}

.book-card-link {
    text-decoration: none;
    color: inherit;
    display: block;
}

.book-cover {
    height: 200px;
    background: linear-gradient(135deg, var(--green-primary), var(--green-dark));
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.cover-placeholder-small {
    color: white;
    font-size: 3rem;
    font-weight: 600;
    text-transform: uppercase;
}

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

.book-card-title {
    font-family: var(--font-serif);
    font-size: 1rem;
    font-weight: 600;
    color: var(--green-dark);
    margin-bottom: var(--spacing-xs);
    line-height: 1.3;
}

.book-card-author {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: var(--spacing-xs);
}

.book-card-year {
    font-size: 0.8rem;
    color: var(--text-light);
    margin-bottom: var(--spacing-sm);
}

.book-card-tags {
    display: flex;
    gap: var(--spacing-xs);
    flex-wrap: wrap;
}

.book-card-tag {
    font-size: 0.7rem;
    padding: 0.15rem 0.4rem;
    background: var(--green-pale);
    color: var(--green-dark);
    border-radius: 10px;
}

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

/* Mobile Responsive for Book Grid */
@media (max-width: 768px) {
    .book-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-md);
    }
    
    .page-header h1 {
        font-size: 1.5rem;
    }
    
    .filter-tags {
        overflow-x: auto;
        flex-wrap: nowrap;
        padding-bottom: var(--spacing-sm);
    }
    
    .filter-tag {
        white-space: nowrap;
    }
}

@media (max-width: 480px) {
    .book-grid {
        grid-template-columns: 1fr;
    }
    
    .nav {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .nav a {
        font-size: 0.8rem;
    }
}

/* Print Styles */
@media print {
    .header, .footer {
        display: none;
    }
    
    .book-hero, .ai-section, .user-comments {
        box-shadow: none;
        border: 1px solid #ccc;
    }
}

/* ============================================
   BOOK LIST PAGE - ENHANCED STYLES
   ============================================ */

/* Wider container for book list page only */
.book-list-page .container {
    max-width: 1200px;
}

/* Search Section */
.search-section {
    margin-bottom: var(--spacing-lg);
}

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

.search-input-wrapper .search-input {
    flex: 1;
    padding-right: 2.5rem;
}

.search-clear {
    position: absolute;
    right: 0.5rem;
    top: 50%;
    transform: translateY(-50%);
    width: 32px;
    height: 32px;
    border: none;
    background: transparent;
    color: var(--text-muted);
    cursor: pointer;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    transition: all 0.2s;
}

.search-clear:hover {
    background: var(--green-pale);
    color: var(--green-dark);
}

/* Fuzzy Search Checkbox */
.fuzzy-search {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    margin-top: var(--spacing-sm);
    font-size: 0.85rem;
    color: var(--text-muted);
}

.fuzzy-search input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
    accent-color: var(--green-primary);
}

.fuzzy-search label {
    cursor: pointer;
    user-select: none;
}

/* Filter Section & Accordion */
.filter-section {
    margin-bottom: var(--spacing-lg);
}

.filter-accordion {
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    background: white;
}

.filter-accordion summary {
    padding: var(--spacing-md);
    cursor: pointer;
    font-weight: 500;
    color: var(--green-dark);
    display: flex;
    align-items: center;
    justify-content: space-between;
    list-style: none;
    user-select: none;
}

.filter-accordion summary::-webkit-details-marker {
    display: none;
}

.filter-accordion summary::after {
    content: '▸';
    font-size: 1rem;
    transition: transform 0.2s;
    color: var(--text-muted);
}

.filter-accordion[open] summary::after {
    transform: rotate(90deg);
}

.filter-accordion .filter-tags {
    padding: 0 var(--spacing-md) var(--spacing-md);
}

/* Controls Section (Sort + View Toggle) */
.controls-section {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-md);
    background: white;
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
}

.sort-control {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

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

.sort-control select {
    padding: var(--spacing-xs) var(--spacing-sm);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    background: white;
    cursor: pointer;
}

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

.view-btn {
    width: 44px;
    height: 44px;
    border: 1px solid var(--border);
    background: white;
    border-radius: var(--radius-sm);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
    font-size: 1.1rem;
}

.view-btn:hover {
    background: var(--green-pale);
    border-color: var(--green-primary);
}

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

/* Active Filters */
.active-filters {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-md);
    min-height: 0;
}

.active-filters:empty {
    display: none;
}

.active-filter {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--green-pale);
    color: var(--green-dark);
    border-radius: 20px;
    font-size: 0.8rem;
    cursor: pointer;
    transition: all 0.2s;
    border: none;
}

.active-filter:hover {
    background: var(--green-primary);
    color: white;
}

.active-filter::after {
    content: '×';
    font-size: 1rem;
    font-weight: bold;
}

/* Results Header */
.results-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

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

.results-count strong {
    color: var(--green-dark);
    font-weight: 600;
}

/* Books Container - Grid & List Views */
.books-container {
    margin-bottom: var(--spacing-xl);
}

.books-container.view-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

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

/* List View Card Styles */
.books-container.view-list .book-card {
    display: flex;
    flex-direction: row;
    align-items: stretch;
}

.books-container.view-list .book-cover {
    width: 100px;
    height: 140px;
    flex-shrink: 0;
}

.books-container.view-list .cover-placeholder-small {
    font-size: 2rem;
}

.books-container.view-list .book-card-info {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.books-container.view-list .book-card-tags {
    display: none;
}

/* Enhanced Book Card Styles */
.book-card-ratings {
    display: flex;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-xs);
}

.mini-rating {
    display: inline-flex;
    align-items: center;
    gap: 2px;
    font-size: 0.75rem;
    padding: 2px 6px;
    background: var(--green-pale);
    border-radius: 10px;
    color: var(--green-dark);
}

.mini-rating .axis {
    text-transform: uppercase;
    font-weight: 600;
}

.book-card-meta {
    display: flex;
    gap: var(--spacing-sm);
    font-size: 0.8rem;
    color: var(--text-light);
    margin-bottom: var(--spacing-xs);
}

.book-card-subtitle {
    font-size: 0.85rem;
    color: var(--text-muted);
    font-style: italic;
    margin-bottom: var(--spacing-xs);
    line-height: 1.3;
}

.book-card-excerpt {
    font-size: 0.85rem;
    color: var(--text-muted);
    line-height: 1.4;
    margin-top: var(--spacing-sm);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.book-card-discussion {
    margin-top: var(--spacing-sm);
    font-size: 0.8rem;
    color: var(--green-primary);
}

.book-card-discussion::before {
    content: '💬 ';
}

/* Title truncation with line clamp */
.book-card-title {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* Load More Button (legacy, will be removed for infinite scroll) */
.load-more {
    text-align: center;
    padding: var(--spacing-lg);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-md);
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    border: none;
    text-decoration: none;
}

.btn-secondary {
    background: white;
    color: var(--green-dark);
    border: 1px solid var(--border);
}

.btn-secondary:hover {
    background: var(--green-pale);
    border-color: var(--green-primary);
}

/* Loading States */
.loading-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
}

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

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

/* Scroll Sentinel (for infinite scroll) */
.scroll-sentinel {
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.scroll-sentinel .loading-spinner {
    width: 24px;
    height: 24px;
}

/* Empty State Enhancement */
.empty-state {
    background: white;
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-sm);
}

.empty-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
}

.empty-state h3 {
    font-family: var(--font-serif);
    color: var(--green-dark);
    margin-bottom: var(--spacing-sm);
}

/* ============================================
   MOBILE RESPONSIVE - BOOK LIST PAGE
   ============================================ */

/* Tablet and below */
@media (max-width: 768px) {
    /* Fix existing mobile rules to target correct class */
    .books-container.view-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-md);
    }
    
    .page-header h1 {
        font-size: 1.5rem;
    }
    
    /* Remove the problematic horizontal scroll on filter tags */
    .filter-tags {
        flex-wrap: wrap;
    }
    
    /* Controls stack on tablet */
    .controls-section {
        flex-direction: column;
        align-items: stretch;
    }
    
    .view-toggle {
        justify-content: center;
    }
    
    /* Smaller cards on tablet */
    .book-cover {
        height: 140px;
    }
    
    .cover-placeholder-small {
        font-size: 2rem;
    }
}

/* Mobile phones */
@media (max-width: 480px) {
    /* Sticky search bar on mobile */
    .search-section {
        position: sticky;
        top: 0;
        z-index: 100;
        background: var(--warm-bg);
        padding: var(--spacing-sm) 0;
        margin: 0 calc(-1 * var(--spacing-md));
        padding-left: var(--spacing-md);
        padding-right: var(--spacing-md);
    }
    
    /* Reduce page header on mobile */
    .page-header h1 {
        font-size: 1.3rem;
        margin-bottom: var(--spacing-xs);
    }
    
    .page-header .subtitle {
        display: none;
    }
    
    /* Single column but horizontal cards */
    .books-container.view-grid {
        grid-template-columns: 1fr;
    }
    
    /* Horizontal card layout for mobile */
    .books-container.view-grid .book-card,
    .books-container.view-list .book-card {
        display: flex;
        flex-direction: row;
        align-items: stretch;
    }
    
    .books-container.view-grid .book-cover,
    .books-container.view-list .book-cover {
        width: 80px;
        height: 110px;
        flex-shrink: 0;
    }
    
    .books-container.view-grid .cover-placeholder-small,
    .books-container.view-list .cover-placeholder-small {
        font-size: 1.5rem;
    }
    
    .books-container.view-grid .book-card-info,
    .books-container.view-list .book-card-info {
        flex: 1;
        padding: var(--spacing-sm);
    }
    
    .books-container.view-grid .book-card-title,
    .books-container.view-list .book-card-title {
        font-size: 0.95rem;
        -webkit-line-clamp: 2;
        line-clamp: 2;
    }
    
    .books-container.view-grid .book-card-author,
    .books-container.view-list .book-card-author {
        font-size: 0.8rem;
    }
    
    .books-container.view-grid .book-card-year,
    .books-container.view-list .book-card-year {
        font-size: 0.75rem;
    }
    
    .books-container.view-grid .book-card-tags,
    .books-container.view-list .book-card-tags {
        display: none;
    }
    
    /* Touch-friendly sizing */
    .filter-tag {
        padding: 0.5rem 1rem;
        min-height: 44px;
        display: inline-flex;
        align-items: center;
    }
    
    .view-btn {
        width: 48px;
        height: 48px;
    }
    
    .search-clear {
        width: 44px;
        height: 44px;
    }
    
    /* Fuzzy checkbox below search */
    .fuzzy-search {
        margin-top: var(--spacing-xs);
        font-size: 0.8rem;
    }
    
    /* Compact results header */
    .results-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    /* Hide some card elements on mobile */
    .book-card-excerpt,
    .book-card-discussion {
        display: none;
    }
    
    /* Stack controls */
    .controls-section {
        padding: var(--spacing-sm);
        gap: var(--spacing-sm);
    }
    
    .sort-control {
        width: 100%;
        justify-content: space-between;
    }
    
    .sort-control select {
        flex: 1;
    }
    
    /* Accordion more compact */
    .filter-accordion summary {
        padding: var(--spacing-sm);
        font-size: 0.9rem;
    }
    
    .filter-accordion .filter-tags {
        padding: 0 var(--spacing-sm) var(--spacing-sm);
    }
}

/* Very small screens */
@media (max-width: 360px) {
    .books-container.view-grid .book-cover,
    .books-container.view-list .book-cover {
        width: 70px;
        height: 95px;
    }
    
    .books-container.view-grid .book-card-title,
    .books-container.view-list .book-card-title {
        font-size: 0.9rem;
    }
}

/* Remove the stale .book-grid responsive rules - they're not used */
/* These are kept for backward compatibility but will not apply to the actual page */
@media (max-width: 768px) {
    /* Old rules targeting .book-grid - intentionally left as no-op since template uses .books-container */
}

@media (max-width: 480px) {
    /* Old rules targeting .book-grid - intentionally left as no-op since template uses .books-container */
}