/* Light Academia Design System */

:root {
    --bg-parchment: #fdfbf7;
    --bg-paper: #f7f3e8;
    --bg-paper-dark: #eee8d5;
    
    --ink-black: #1c1917;
    --ink-dark: #38302b;
    --ink-muted: #6e6156;
    
    --leather-amber: #78350f;
    --leather-dark: #451a03;
    --leather-light: #b45309;
    
    --scholar-green: #1b4332;
    --scholar-green-light: #2d6a4f;
    --scholar-gold: #c69b32;
    --scholar-burgundy: #5c1d24;
    --scholar-blue: #1d3557;
    
    --border-color: #e7e0cf;
    --border-dark: #d3c9b1;
    
    --font-serif-header: 'Playfair Display', Georgia, serif;
    --font-serif-body: 'Lora', 'EB Garamond', Georgia, serif;
    --font-serif-logo: 'Cinzel', Georgia, serif;
    
    --shadow-soft: 0 4px 15px rgba(28, 25, 23, 0.08);
    --shadow-medium: 0 8px 25px rgba(28, 25, 23, 0.12);
    --shadow-book: 3px 5px 12px rgba(28, 25, 23, 0.25);
    
    --transition-smooth: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

/* General Layout & Resets */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    background-color: var(--bg-parchment);
    color: var(--ink-black);
    font-family: var(--font-serif-body);
    font-size: 16px;
    line-height: 1.6;
    background-image: radial-gradient(rgba(120, 53, 15, 0.02) 1px, transparent 0),
                      radial-gradient(rgba(120, 53, 15, 0.02) 1px, transparent 0);
    background-size: 24px 24px;
    background-position: 0 0, 12px 12px;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-serif-header);
    color: var(--leather-dark);
    font-weight: 600;
}

a {
    color: var(--leather-amber);
    text-decoration: none;
    transition: var(--transition-smooth);
}

a:hover {
    color: var(--leather-light);
    text-decoration: underline;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: var(--bg-paper);
    border-left: 1px solid var(--border-color);
}

::-webkit-scrollbar-thumb {
    background: var(--border-dark);
    border: 2px solid var(--bg-paper);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--ink-muted);
}

/* Mode Indicator Badge */
.mode-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.4rem 0.8rem;
    font-size: 0.8rem;
    border-radius: 2px;
    font-family: var(--font-serif-logo);
    margin-bottom: 1.5rem;
    border: 1px solid transparent;
    width: fit-content;
    box-shadow: var(--shadow-soft);
}

.demo-mode {
    background-color: #fef3c7;
    color: #92400e;
    border-color: #f59e0b;
}

.cloud-mode {
    background-color: #d1fae5;
    color: #065f46;
    border-color: #10b981;
}

.indicator-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: currentColor;
    display: inline-block;
    animation: pulse 1.5s infinite;
}

@keyframes pulse {
    0% { opacity: 0.4; }
    50% { opacity: 1; }
    100% { opacity: 0.4; }
}

/* Header & Library Bar */
.library-header {
    background-color: rgba(253, 251, 247, 0.9);
    backdrop-filter: blur(10px);
    border-bottom: 3px double var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
    padding: 0.8rem 2rem;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.02);
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
}

.logo-area {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    cursor: pointer;
}

.logo-icon {
    font-size: 2.2rem;
    color: var(--leather-amber);
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.1);
}

.logo-title {
    font-family: var(--font-serif-logo);
    font-size: 1.5rem;
    letter-spacing: 1px;
    line-height: 1.1;
    color: var(--leather-dark);
}

.logo-subtitle {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--ink-muted);
    font-family: var(--font-serif-body);
}

/* Search Bar styling */
.search-bar-container {
    position: relative;
    flex-grow: 1;
    max-width: 500px;
}

.library-search {
    width: 100%;
    padding: 0.6rem 1rem 0.6rem 2.5rem;
    background-color: var(--bg-paper);
    border: 1px solid var(--border-color);
    border-radius: 2px;
    font-family: var(--font-serif-body);
    font-size: 0.95rem;
    color: var(--ink-black);
    box-shadow: inset 1px 1px 4px rgba(0, 0, 0, 0.05);
    transition: var(--transition-smooth);
}

.library-search:focus {
    outline: none;
    border-color: var(--leather-amber);
    background-color: var(--bg-parchment);
    box-shadow: inset 1px 1px 4px rgba(0, 0, 0, 0.05), 0 0 5px rgba(120, 53, 15, 0.15);
}

.search-icon {
    position: absolute;
    left: 0.8rem;
    top: 50%;
    transform: translateY(-50%);
    font-size: 0.9rem;
    color: var(--ink-muted);
}

.auth-navigation {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.user-tag {
    font-family: var(--font-serif-logo);
    font-size: 0.9rem;
    color: var(--ink-dark);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.user-tag::before {
    content: "📜";
}

/* Main Container Grid */
.library-main {
    max-width: 1200px;
    margin: 2rem auto;
    padding: 0 2rem;
}

.content-container {
    display: grid;
    grid-template-columns: 260px 1fr;
    gap: 2rem;
    align-items: start;
}

@media (max-width: 900px) {
    .content-container {
        grid-template-columns: 1fr;
    }
    .library-sidebar {
        position: static;
    }
}

/* Sidebar & Filters */
.library-sidebar {
    background-color: var(--bg-paper);
    border: 1px solid var(--border-color);
    padding: 1.5rem;
    border-radius: 2px;
    box-shadow: var(--shadow-soft);
    position: sticky;
    top: 100px;
}

.sidebar-section {
    margin-bottom: 2rem;
}

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

.border-double {
    border-bottom: 3px double var(--border-color);
    padding-bottom: 1.5rem;
}

.section-title {
    font-family: var(--font-serif-logo);
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--leather-amber);
    margin-bottom: 1rem;
    border-left: 3px solid var(--leather-amber);
    padding-left: 0.5rem;
}

.shelf-list, .subject-list {
    list-style: none;
}

.shelf-list li, .subject-list li {
    margin-bottom: 0.5rem;
}

.shelf-link, .subject-link {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.4rem 0.6rem;
    color: var(--ink-dark);
    border-radius: 2px;
    font-size: 0.95rem;
}

.shelf-link:hover, .subject-link:hover {
    background-color: var(--bg-paper-dark);
    color: var(--leather-amber);
    text-decoration: none;
}

.shelf-link.active, .subject-link.active {
    background-color: var(--leather-amber);
    color: var(--bg-parchment) !important;
    font-weight: 500;
}

.shelf-icon {
    font-size: 1.1rem;
}

.sidebar-tip {
    font-size: 0.85rem;
    color: var(--ink-muted);
    font-style: italic;
    margin-bottom: 0.8rem;
    text-align: center;
}

/* Catalog View */
.catalog-header {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.8rem;
    margin-bottom: 1.5rem;
}

.view-heading {
    font-size: 1.8rem;
    color: var(--leather-dark);
    position: relative;
}

.view-heading::after {
    content: "";
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 60px;
    height: 1px;
    background-color: var(--leather-amber);
}

.catalog-meta {
    font-size: 0.9rem;
    color: var(--ink-muted);
    font-style: italic;
}

/* Books and Catalog Grid */
.curriculum-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.8rem;
}

.curriculum-card {
    background-color: var(--bg-paper);
    border: 1px solid var(--border-color);
    border-radius: 3px;
    padding: 1.2rem;
    box-shadow: var(--shadow-soft);
    display: flex;
    flex-direction: column;
    gap: 1rem;
    transition: var(--transition-smooth);
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.curriculum-card::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 5px;
    background-color: var(--leather-amber);
    opacity: 0.7;
}

.curriculum-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-medium);
    border-color: var(--border-dark);
}

.card-book-visual {
    display: flex;
    justify-content: center;
    padding: 0.5rem 0;
}

/* The CSS Book Cover Generator */
.book-cover {
    width: 110px;
    height: 160px;
    position: relative;
    border-radius: 2px 4px 4px 2px;
    box-shadow: var(--shadow-book);
    overflow: hidden;
    display: flex;
    border-left: 2px solid rgba(0, 0, 0, 0.2);
}

.book-cover::after {
    /* Book cover highlight shine */
    content: "";
    position: absolute;
    top: 0;
    left: 12px;
    width: 8px;
    bottom: 0;
    background: linear-gradient(to right, rgba(255,255,255,0) 0%, rgba(255,255,255,0.15) 50%, rgba(255,255,255,0) 100%);
    pointer-events: none;
}

.book-spine-visual {
    width: 10px;
    height: 100%;
    background-color: rgba(0,0,0,0.25);
    border-right: 1px solid rgba(255,255,255,0.1);
}

.book-cover-front {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding: 0.8rem 0.5rem;
    color: #f7f3e8;
    text-align: center;
    border: 1px solid rgba(255,255,255,0.1);
}

/* Cover Colors by Subject */
.cover-green { background-color: var(--scholar-green); }
.cover-blue { background-color: var(--scholar-blue); }
.cover-burgundy { background-color: var(--scholar-burgundy); }
.cover-brown { background-color: var(--leather-dark); }
.cover-gold { background-color: #8b6d11; }
.cover-default { background-color: var(--ink-dark); }

.book-cover-title {
    font-family: var(--font-serif-header);
    font-size: 0.68rem;
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: 0.5px;
    margin-top: 0.4rem;
    text-transform: uppercase;
    display: -webkit-box;
    -webkit-line-clamp: 4;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.book-cover-author {
    font-size: 0.55rem;
    font-style: italic;
    opacity: 0.85;
    margin-bottom: 0.4rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Card details text */
.card-content {
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.card-subject {
    font-family: var(--font-serif-logo);
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--leather-amber);
    margin-bottom: 0.3rem;
}

.card-title {
    font-size: 1.15rem;
    line-height: 1.3;
    margin-bottom: 0.2rem;
    color: var(--ink-black);
}

.card-author {
    font-size: 0.85rem;
    color: var(--ink-muted);
    font-style: italic;
    margin-bottom: 0.6rem;
}

.card-rating-row {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    margin-bottom: 0.8rem;
}

.rating-stars {
    color: var(--gold-star);
    font-size: 0.9rem;
    letter-spacing: 1px;
}

.rating-count {
    font-size: 0.8rem;
    color: var(--ink-muted);
}

.card-description {
    font-size: 0.88rem;
    color: var(--ink-dark);
    line-height: 1.5;
    margin-bottom: 1rem;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.card-footer {
    margin-top: auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid var(--border-color);
    padding-top: 0.8rem;
}

.card-grade-badge {
    background-color: var(--bg-paper-dark);
    color: var(--ink-dark);
    padding: 0.2rem 0.5rem;
    font-size: 0.75rem;
    border-radius: 2px;
    font-family: var(--font-serif-logo);
}

.card-shelf-badge {
    font-size: 0.75rem;
    color: var(--scholar-green-light);
    font-weight: 600;
}

.card-shelf-badge.to_study { color: var(--leather-light); }
.card-shelf-badge.studying { color: var(--scholar-gold); }
.card-shelf-badge.completed { color: var(--scholar-green); }


/* Detail View styling */
.detail-section {
    animation: fadeIn 0.4s ease-out;
}

.btn-back-to-explore {
    margin-bottom: 1.5rem;
    font-size: 1rem;
    color: var(--leather-amber);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.detail-layout {
    display: grid;
    grid-template-columns: 220px 1fr;
    gap: 2.5rem;
    background-color: var(--bg-paper);
    border: 1px solid var(--border-color);
    padding: 2rem;
    border-radius: 3px;
    box-shadow: var(--shadow-soft);
}

@media (max-width: 768px) {
    .detail-layout {
        grid-template-columns: 1fr;
    }
    .detail-book-column {
        align-items: center;
    }
}

.detail-book-column {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.book-cover-large {
    width: 180px;
    height: 260px;
    position: relative;
    border-radius: 3px 6px 6px 3px;
    box-shadow: var(--shadow-book);
    overflow: hidden;
    display: flex;
    border-left: 4px solid rgba(0,0,0,0.3);
    margin: 0 auto;
}

.book-cover-large .book-spine-visual {
    width: 16px;
}

.book-cover-large .book-cover-front {
    padding: 1.5rem 1rem;
}

.book-cover-large .book-cover-title {
    font-size: 1rem;
    margin-top: 1rem;
}

.book-cover-large .book-cover-author {
    font-size: 0.8rem;
    margin-bottom: 1rem;
}

.book-shelf-manager {
    border-top: 1px solid var(--border-color);
    padding-top: 1.2rem;
}

.shelf-select-label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 0.4rem;
    color: var(--ink-dark);
}

.library-select {
    width: 100%;
    padding: 0.5rem;
    background-color: var(--bg-parchment);
    border: 1px solid var(--border-dark);
    font-family: var(--font-serif-body);
    font-size: 0.9rem;
    color: var(--ink-black);
    outline: none;
}

.library-select:focus {
    border-color: var(--leather-amber);
}

.not-auth-prompt {
    font-size: 0.85rem;
    color: var(--ink-muted);
    text-align: center;
    background-color: var(--bg-paper-dark);
    padding: 0.8rem;
    border-radius: 2px;
    border: 1px dashed var(--border-dark);
}

.detail-content-column {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.book-header {
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 1.2rem;
}

.detail-subject-badge {
    font-family: var(--font-serif-logo);
    color: var(--leather-amber);
    font-size: 0.8rem;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    display: block;
    margin-bottom: 0.4rem;
}

.detail-title {
    font-size: 2.2rem;
    line-height: 1.2;
    color: var(--leather-dark);
    margin-bottom: 0.3rem;
}

.detail-author {
    font-size: 1.1rem;
    color: var(--ink-muted);
    font-style: italic;
    margin-bottom: 0.8rem;
}

.detail-rating-summary {
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.detail-rating-summary .rating-stars {
    font-size: 1.1rem;
}

.detail-rating-text {
    font-size: 0.9rem;
    color: var(--ink-dark);
}

.book-metadata-card {
    background-color: var(--bg-parchment);
    border: 1px solid var(--border-color);
    padding: 0.8rem 1.2rem;
    display: flex;
    gap: 2rem;
    border-radius: 2px;
}

.meta-row {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
}

.meta-label {
    color: var(--ink-muted);
    font-weight: 500;
}

.meta-value {
    color: var(--ink-black);
    font-weight: 600;
}

.detail-subheading {
    font-size: 1.15rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.4rem;
    margin-bottom: 0.8rem;
}

.font-cinzel {
    font-family: var(--font-serif-logo);
    letter-spacing: 1px;
}

.reviews-feed-container {
    margin-top: 1.5rem;
}

.reviews-feed-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.2rem;
}

.reviews-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.review-item {
    background-color: var(--bg-parchment);
    border: 1px solid var(--border-color);
    padding: 1rem 1.2rem;
    border-radius: 2px;
    position: relative;
}

.review-item-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
}

.reviewer-name {
    font-family: var(--font-serif-logo);
    font-size: 0.9rem;
    color: var(--leather-dark);
}

.reviewer-name::after {
    content: " 🖋";
}

.review-date {
    font-size: 0.75rem;
    color: var(--ink-muted);
}

.review-comment {
    font-size: 0.92rem;
    color: var(--ink-dark);
    white-space: pre-line;
}


/* Common UI Elements: BUTTONS & FORMS */
.btn {
    padding: 0.5rem 1.2rem;
    font-family: var(--font-serif-body);
    font-size: 0.9rem;
    border-radius: 2px;
    cursor: pointer;
    transition: var(--transition-smooth);
    border: 1px solid transparent;
}

.btn-primary {
    background-color: var(--leather-amber);
    color: var(--bg-parchment);
    border-color: var(--leather-dark);
}

.btn-primary:hover {
    background-color: var(--leather-light);
    box-shadow: 0 2px 8px rgba(120, 53, 15, 0.25);
}

.btn-secondary {
    background-color: var(--bg-paper-dark);
    color: var(--leather-dark);
    border-color: var(--border-dark);
}

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

.btn-text {
    background: transparent;
    color: var(--leather-amber);
    border: none;
    padding: 0;
}

.btn-text:hover {
    color: var(--leather-light);
    text-decoration: underline;
}

.btn-full {
    width: 100%;
}

.btn-close {
    position: absolute;
    right: 1.2rem;
    top: 1rem;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--ink-muted);
    cursor: pointer;
}

.btn-close:hover {
    color: var(--ink-black);
}

/* Modals Overlay & Forms */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(28, 25, 23, 0.6);
    backdrop-filter: blur(4px);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    padding: 1rem;
    animation: fadeIn 0.3s ease-out;
}

.modal-card {
    background-color: var(--bg-parchment);
    border: 3px double var(--border-dark);
    border-radius: 4px;
    padding: 2rem;
    width: 100%;
    max-width: 520px;
    box-shadow: var(--shadow-medium);
    position: relative;
    animation: scaleUp 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.auth-card {
    max-width: 400px;
}

.modal-title {
    font-size: 1.5rem;
    color: var(--leather-dark);
    margin-bottom: 0.2rem;
    text-align: center;
}

.modal-subtitle {
    font-size: 0.85rem;
    color: var(--ink-muted);
    text-align: center;
    margin-bottom: 1.5rem;
    font-style: italic;
}

.form-group {
    margin-bottom: 1.2rem;
}

.form-row {
    display: flex;
    gap: 1rem;
}

.flex-1 {
    flex: 1;
}

label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 0.3rem;
    color: var(--ink-dark);
}

.form-input {
    width: 100%;
    padding: 0.6rem 0.8rem;
    background-color: var(--bg-paper);
    border: 1px solid var(--border-color);
    font-family: var(--font-serif-body);
    font-size: 0.95rem;
    color: var(--ink-black);
    border-radius: 2px;
    outline: none;
    transition: var(--transition-smooth);
}

.form-input:focus {
    border-color: var(--leather-amber);
    background-color: var(--bg-parchment);
}

.form-textarea {
    min-height: 120px;
    resize: vertical;
}

.form-help {
    font-size: 0.75rem;
    color: var(--ink-muted);
    margin-top: 0.2rem;
    display: block;
}

.error-msg {
    color: #8b0000;
    font-size: 0.85rem;
    margin-bottom: 1rem;
    font-style: italic;
    min-height: 1.2rem;
}

/* Interactive Star Rating Form */
.star-rating-group {
    display: flex;
    flex-direction: column;
    align-items: center;
    background-color: var(--bg-paper);
    padding: 1rem;
    border: 1px dashed var(--border-color);
    border-radius: 2px;
}

.rating-label {
    margin-bottom: 0.5rem;
}

.interactive-stars {
    font-size: 2.2rem;
    cursor: pointer;
    display: flex;
    gap: 0.3rem;
    color: var(--border-dark);
}

.interactive-star {
    transition: transform 0.1s ease;
}

.interactive-star:hover {
    transform: scale(1.2);
}

.interactive-stars.hovered .interactive-star {
    color: var(--border-dark);
}

.interactive-star.highlighted {
    color: var(--gold-star) !important;
}

/* Authentication Tabs */
.auth-tabs {
    display: flex;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 1.5rem;
}

.auth-tab {
    flex: 1;
    background: none;
    border: none;
    padding: 0.6rem;
    font-family: var(--font-serif-logo);
    font-size: 0.95rem;
    color: var(--ink-muted);
    cursor: pointer;
    transition: var(--transition-smooth);
    border-bottom: 2px solid transparent;
}

.auth-tab:hover {
    color: var(--leather-amber);
}

.auth-tab.active {
    color: var(--leather-dark);
    border-bottom-color: var(--leather-amber);
    font-weight: 600;
}

/* Footers */
.library-footer {
    border-top: 3px double var(--border-color);
    padding: 2rem 0;
    text-align: center;
    font-size: 0.85rem;
    color: var(--ink-muted);
    max-width: 1200px;
    margin: 4rem auto 0;
}

.footer-sub {
    font-size: 0.75rem;
    margin-top: 0.3rem;
    text-transform: uppercase;
    letter-spacing: 2px;
}

/* Helper utilities */
.hidden {
    display: none !important;
}

.auth-only {
    /* Set display behavior dynamically via JS */
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes scaleUp {
    from { transform: scale(0.95); opacity: 0; }
    to { transform: scale(1); opacity: 1; }
}

/* Image-based Book Covers */
.book-cover-image-container {
    width: 110px;
    height: 160px;
    position: relative;
    border-radius: 2px 4px 4px 2px;
    box-shadow: var(--shadow-book);
    overflow: hidden;
    border-left: 2px solid rgba(0, 0, 0, 0.25);
    background-color: var(--bg-paper-dark);
}

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

.book-cover-large-image-container {
    width: 180px;
    height: 260px;
    position: relative;
    border-radius: 3px 6px 6px 3px;
    box-shadow: var(--shadow-book);
    overflow: hidden;
    border-left: 4px solid rgba(0, 0, 0, 0.3);
    margin: 0 auto;
    background-color: var(--bg-paper-dark);
}

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