/**
 * Vidéisme Ebooks - Feuille de styles principale
 * Auteur: NGARA PETIT JEAN
 * Entreprise: NGARAGO
 * www.ngarago.online
 */

/* ===== Variables CSS ===== */
:root {
    --primary-black: #000000;
    --primary-gold: #D4AF37;
    --primary-gold-light: #E5C158;
    --primary-gold-dark: #B8962E;
    --white: #FFFFFF;
    --gray-100: #F7F7F7;
    --gray-200: #E5E5E5;
    --gray-300: #D4D4D4;
    --gray-400: #A3A3A3;
    --gray-500: #737373;
    --gray-600: #525252;
    --gray-700: #404040;
    --gray-800: #262626;
    --gray-900: #171717;
    --success: #10B981;
    --warning: #F59E0B;
    --error: #EF4444;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
    --font-serif: 'Playfair Display', Georgia, serif;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --border-radius: 8px;
    --border-radius-lg: 12px;
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-sans);
    background-color: var(--gray-100);
    color: var(--gray-800);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
}

a {
    color: var(--primary-gold);
    text-decoration: none;
    transition: var(--transition);
}

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

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

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

input, textarea, select {
    font-family: inherit;
    font-size: inherit;
}

ul, ol {
    list-style: none;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-serif);
    font-weight: 600;
    line-height: 1.3;
    color: var(--gray-900);
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

/* ===== Header & Navigation ===== */
.main-header {
    background: var(--primary-black);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow-md);
}

.navbar {
    padding: 0.75rem 0;
}

.navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--white);
    font-family: var(--font-serif);
    font-size: 1.25rem;
    font-weight: 600;
}

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

.logo-img {
    width: 40px;
    height: 40px;
    object-fit: contain;
}

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

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 0.5rem;
    cursor: pointer;
}

.mobile-menu-btn span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--white);
    transition: var(--transition);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nav-menu a {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    color: var(--gray-300);
    font-size: 0.9rem;
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--primary-gold);
    background: rgba(212, 175, 55, 0.1);
}

.nav-auth {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* ===== User Menu ===== */
.user-menu {
    position: relative;
}

.user-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem;
    color: var(--white);
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.user-btn:hover {
    background: rgba(255, 255, 255, 0.1);
}

.user-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--primary-gold);
}

.user-name {
    font-size: 0.9rem;
    max-width: 120px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.user-btn .fa-chevron-down {
    font-size: 0.75rem;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: 0.5rem;
    min-width: 200px;
    background: var(--white);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-xl);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: var(--transition);
    z-index: 100;
}

.dropdown-menu.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-menu a {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    color: var(--gray-700);
    transition: var(--transition);
}

.dropdown-menu a:hover {
    background: var(--gray-100);
    color: var(--primary-gold);
}

.dropdown-divider {
    height: 1px;
    background: var(--gray-200);
    margin: 0.5rem 0;
}

.logout-link {
    color: var(--error) !important;
}

/* ===== Buttons ===== */
.btn-login {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: var(--primary-gold);
    color: var(--primary-black);
    font-weight: 500;
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.btn-login:hover {
    background: var(--primary-gold-light);
    color: var(--primary-black);
}

/* ===== Modal ===== */
.modal {
    position: fixed;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.modal.show {
    opacity: 1;
    visibility: visible;
}

.modal-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
}

.modal-content {
    position: relative;
    width: 100%;
    max-width: 400px;
    background: var(--white);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-xl);
    padding: 2rem;
    transform: scale(0.9);
    transition: var(--transition);
}

.modal.show .modal-content {
    transform: scale(1);
}

.modal-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    font-size: 1.5rem;
    color: var(--gray-400);
    cursor: pointer;
    transition: var(--transition);
}

.modal-close:hover {
    color: var(--gray-600);
}

.modal-header {
    text-align: center;
    margin-bottom: 1.5rem;
}

.modal-logo {
    width: 80px;
    height: 80px;
    margin: 0 auto 1rem;
}

.modal-header h2 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.modal-header p {
    color: var(--gray-500);
    font-size: 0.9rem;
}

.modal-body {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.btn-social {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    padding: 0.875rem 1.5rem;
    border-radius: var(--border-radius);
    font-weight: 500;
    transition: var(--transition);
}

.btn-google {
    background: var(--white);
    color: var(--gray-700);
    border: 2px solid var(--gray-300);
}

.btn-google:hover {
    border-color: var(--gray-400);
    background: var(--gray-100);
}

.btn-facebook {
    background: #1877F2;
    color: var(--white);
}

.btn-facebook:hover {
    background: #1664E0;
}

.modal-footer {
    margin-top: 1.5rem;
    text-align: center;
    color: var(--gray-500);
    font-size: 0.8rem;
}

.modal-footer p {
    margin-bottom: 0.25rem;
}

/* ===== Hero Section ===== */
.hero {
    background: linear-gradient(135deg, var(--primary-black) 0%, var(--gray-900) 100%);
    padding: 4rem 0;
    text-align: center;
    color: var(--white);
}

.hero-content {
    max-width: 700px;
    margin: 0 auto;
}

.hero h1 {
    font-size: clamp(1.75rem, 5vw, 2.5rem);
    color: var(--white);
    margin-bottom: 1rem;
}

.hero h1 .highlight {
    color: var(--primary-gold);
}

.hero-subtitle {
    font-size: 1.1rem;
    color: var(--gray-400);
    margin-bottom: 2rem;
}

.hero-search {
    margin-bottom: 2rem;
}

.search-form {
    max-width: 500px;
    margin: 0 auto;
}

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

.search-input-wrapper i {
    position: absolute;
    left: 1rem;
    color: var(--gray-400);
}

.search-input-wrapper input {
    width: 100%;
    padding: 1rem 1rem 1rem 2.75rem;
    border: 2px solid transparent;
    border-radius: var(--border-radius-lg);
    font-size: 1rem;
    background: var(--white);
    transition: var(--transition);
}

.search-input-wrapper input:focus {
    outline: none;
    border-color: var(--primary-gold);
}

.btn-search {
    position: absolute;
    right: 0.5rem;
    padding: 0.75rem 1.25rem;
    background: var(--primary-gold);
    color: var(--primary-black);
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.btn-search:hover {
    background: var(--primary-gold-light);
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
}

.stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.25rem;
}

.stat-item i {
    font-size: 1.5rem;
    color: var(--primary-gold);
}

.stat-number {
    font-size: 1.5rem;
    font-weight: 700;
}

.stat-label {
    font-size: 0.85rem;
    color: var(--gray-400);
}

/* ===== Features Section ===== */
.features-section {
    padding: 3rem 0;
    background: var(--white);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.feature-card {
    text-align: center;
    padding: 2rem;
    border-radius: var(--border-radius-lg);
    background: var(--gray-100);
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.feature-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-gold);
    color: var(--primary-black);
    border-radius: 50%;
    font-size: 1.5rem;
}

.feature-card h3 {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
}

.feature-card p {
    color: var(--gray-500);
    font-size: 0.9rem;
}

/* ===== Sections ===== */
.ebooks-section {
    padding: 3rem 0;
}

.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.section-header h2 {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.5rem;
}

.section-header h2 i {
    color: var(--primary-gold);
}

.btn-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--primary-gold);
    font-weight: 500;
    transition: var(--transition);
}

.btn-link:hover {
    gap: 0.75rem;
}

/* ===== Ebook Cards ===== */
.ebooks-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
}

.ebook-card {
    background: var(--white);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.ebook-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.ebook-cover {
    position: relative;
    aspect-ratio: 3/4;
    overflow: hidden;
    background: var(--gray-200);
}

.ebook-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.ebook-card:hover .ebook-cover img {
    transform: scale(1.05);
}

.ebook-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    background: linear-gradient(135deg, var(--gray-800) 0%, var(--gray-900) 100%);
    color: var(--primary-gold);
    padding: 1rem;
    text-align: center;
}

.ebook-placeholder i {
    font-size: 3rem;
    opacity: 0.5;
}

.ebook-placeholder span {
    font-family: var(--font-serif);
    font-size: 0.9rem;
    color: var(--gray-300);
}

.ebook-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition);
}

.ebook-card:hover .ebook-overlay {
    opacity: 1;
}

.btn-read {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background: var(--primary-gold);
    color: var(--primary-black);
    border-radius: var(--border-radius);
    font-weight: 500;
    transform: translateY(20px);
    transition: var(--transition);
}

.ebook-card:hover .btn-read {
    transform: translateY(0);
}

.btn-read:hover {
    background: var(--primary-gold-light);
    color: var(--primary-black);
}

.badge-featured {
    position: absolute;
    top: 0.75rem;
    right: 0.75rem;
    padding: 0.25rem 0.75rem;
    background: var(--primary-gold);
    color: var(--primary-black);
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: var(--border-radius);
}

.ebook-info {
    padding: 1rem;
}

.ebook-title {
    font-size: 1rem;
    margin-bottom: 0.25rem;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.ebook-title a {
    color: var(--gray-800);
}

.ebook-title a:hover {
    color: var(--primary-gold);
}

.ebook-author {
    color: var(--gray-500);
    font-size: 0.85rem;
    margin-bottom: 0.5rem;
}

.ebook-excerpt {
    color: var(--gray-500);
    font-size: 0.85rem;
    margin-bottom: 0.5rem;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.ebook-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.ebook-rating {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    color: var(--primary-gold);
    font-size: 0.85rem;
}

.ebook-rating span {
    color: var(--gray-400);
    margin-left: 0.25rem;
}

.ebook-stats {
    color: var(--gray-400);
    font-size: 0.85rem;
}

/* ===== Categories ===== */
.categories-section {
    padding: 3rem 0;
    background: var(--white);
}

.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1rem;
}

.category-card {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem;
    background: var(--gray-100);
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.category-card:hover {
    background: var(--primary-gold);
    color: var(--primary-black);
}

.category-card i {
    font-size: 1.5rem;
    color: var(--primary-gold);
}

.category-card:hover i {
    color: var(--primary-black);
}

.category-name {
    flex: 1;
    font-weight: 500;
}

.category-count {
    font-size: 0.85rem;
    color: var(--gray-500);
}

.category-card:hover .category-count {
    color: var(--gray-700);
}

/* ===== CTA Section ===== */
.cta-section {
    padding: 4rem 0;
    background: linear-gradient(135deg, var(--primary-black) 0%, var(--gray-900) 100%);
    color: var(--white);
    text-align: center;
}

.cta-content {
    max-width: 600px;
    margin: 0 auto;
}

.cta-content h2 {
    color: var(--white);
    margin-bottom: 1rem;
}

.cta-content p {
    color: var(--gray-400);
    margin-bottom: 2rem;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.btn-cta {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.875rem 1.5rem;
    border-radius: var(--border-radius);
    font-weight: 500;
    transition: var(--transition);
}

.btn-cta.btn-google {
    background: var(--white);
    color: var(--gray-700);
}

.btn-cta.btn-facebook {
    background: #1877F2;
    color: var(--white);
}

.btn-cta:hover {
    transform: translateY(-2px);
    opacity: 0.9;
}

/* ===== Footer ===== */
.main-footer {
    background: var(--primary-black);
    color: var(--gray-400);
    padding: 3rem 0 1.5rem;
}

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

.footer-brand h3 {
    color: var(--primary-gold);
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

.footer-brand p {
    margin-bottom: 0.25rem;
}

.footer-author,
.footer-company {
    font-size: 0.9rem;
}

.footer-brand strong {
    color: var(--white);
}

.footer-links h4,
.footer-info h4 {
    color: var(--white);
    font-size: 1rem;
    margin-bottom: 1rem;
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.footer-links a {
    color: var(--gray-400);
    font-size: 0.9rem;
}

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

.footer-info p {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
}

.footer-info i {
    color: var(--primary-gold);
    width: 20px;
}

.footer-bottom {
    text-align: center;
    padding-top: 1.5rem;
    border-top: 1px solid var(--gray-800);
    font-size: 0.85rem;
}

.footer-bottom p:first-child {
    margin-bottom: 0.25rem;
}

/* ===== Reader Page ===== */
.reader-container {
    min-height: calc(100vh - 70px);
    display: flex;
    flex-direction: column;
}

.reader-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: var(--white);
    border-bottom: 1px solid var(--gray-200);
    flex-wrap: wrap;
}

.btn-back {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: var(--gray-100);
    color: var(--gray-700);
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.btn-back:hover {
    background: var(--gray-200);
    color: var(--gray-900);
}

.reader-title {
    flex: 1;
    min-width: 200px;
}

.reader-title h1 {
    font-size: 1.25rem;
    margin-bottom: 0.25rem;
}

.reader-title .author {
    color: var(--gray-500);
    font-size: 0.9rem;
}

.reader-actions {
    display: flex;
    gap: 0.5rem;
}

.btn-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--gray-100);
    color: var(--gray-600);
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.btn-icon:hover {
    background: var(--gray-200);
    color: var(--gray-800);
}

.reader-main {
    flex: 1;
    display: flex;
    background: var(--gray-800);
}

.pdf-viewer {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: 1rem;
}

.protection-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
    pointer-events: none;
}

.protection-message {
    text-align: center;
    color: var(--white);
}

.protection-message i {
    font-size: 3rem;
    color: var(--primary-gold);
    margin-bottom: 1rem;
}

.protection-message p {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

.protection-message .sub-text {
    font-size: 0.9rem;
    color: var(--gray-400);
}

.pdf-container {
    position: relative;
    max-width: 100%;
    background: var(--white);
    box-shadow: var(--shadow-xl);
    z-index: 5;
}

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

.pdf-controls {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    padding: 1rem;
    background: var(--white);
    border-top: 1px solid var(--gray-200);
}

.btn-pdf-nav {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: var(--gray-100);
    color: var(--gray-700);
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.btn-pdf-nav:hover:not(:disabled) {
    background: var(--primary-gold);
    color: var(--primary-black);
}

.btn-pdf-nav:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.page-info {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 500;
    color: var(--gray-700);
}

.loading-indicator {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.8);
    color: var(--white);
    z-index: 20;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--gray-600);
    border-top-color: var(--primary-gold);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 1rem;
}

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

/* ===== Reader Sidebar ===== */
.reader-sidebar {
    width: 350px;
    background: var(--white);
    border-left: 1px solid var(--gray-200);
    display: flex;
    flex-direction: column;
    transition: var(--transition);
}

.reader-sidebar.collapsed {
    width: 0;
    overflow: hidden;
}

.sidebar-toggle {
    position: absolute;
    left: -40px;
    top: 50%;
    transform: translateY(-50%);
    width: 40px;
    height: 40px;
    background: var(--gray-700);
    color: var(--white);
    border-radius: var(--border-radius) 0 0 var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 100;
}

.sidebar-content {
    flex: 1;
    overflow-y: auto;
    padding: 1rem;
}

.sidebar-section {
    margin-bottom: 1.5rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--gray-200);
}

.sidebar-section:last-child {
    border-bottom: none;
}

.sidebar-section h3 {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1rem;
    margin-bottom: 1rem;
    color: var(--gray-800);
}

.sidebar-section h3 i {
    color: var(--primary-gold);
}

.info-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.info-item {
    display: flex;
    justify-content: space-between;
    font-size: 0.9rem;
}

.info-item .label {
    color: var(--gray-500);
}

.info-item .value {
    font-weight: 500;
    color: var(--gray-700);
}

.rating-display {
    text-align: center;
    margin-bottom: 1rem;
}

.rating-stars {
    color: var(--primary-gold);
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.rating-text {
    font-size: 0.9rem;
    color: var(--gray-600);
}

.rating-form {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.rating-form label {
    font-weight: 500;
    color: var(--gray-700);
}

.rating-input {
    display: flex;
    flex-wrap: wrap;
    gap: 0.25rem;
}

.rating-input input {
    display: none;
}

.rating-input label {
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gray-100);
    border-radius: var(--border-radius);
    font-size: 0.85rem;
    cursor: pointer;
    transition: var(--transition);
}

.rating-input label:hover,
.rating-input input:checked + label {
    background: var(--primary-gold);
    color: var(--primary-black);
}

.rating-form textarea {
    padding: 0.75rem;
    border: 1px solid var(--gray-300);
    border-radius: var(--border-radius);
    resize: vertical;
    min-height: 80px;
}

.rating-form textarea:focus {
    outline: none;
    border-color: var(--primary-gold);
}

.btn-submit-rating {
    padding: 0.75rem;
    background: var(--primary-gold);
    color: var(--primary-black);
    border-radius: var(--border-radius);
    font-weight: 500;
    transition: var(--transition);
}

.btn-submit-rating:hover {
    background: var(--primary-gold-light);
}

.login-prompt {
    text-align: center;
    padding: 1rem;
    background: var(--gray-100);
    border-radius: var(--border-radius);
}

.login-link {
    color: var(--primary-gold);
    font-weight: 500;
}

/* ===== History ===== */
.history-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    max-height: 300px;
    overflow-y: auto;
}

.history-item {
    padding: 0.75rem;
    background: var(--gray-100);
    border-radius: var(--border-radius);
}

.history-action {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
}

.action-badge {
    padding: 0.125rem 0.5rem;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: var(--border-radius);
    text-transform: uppercase;
}

.action-badge.action-created {
    background: var(--success);
    color: var(--white);
}

.action-badge.action-updated {
    background: var(--warning);
    color: var(--white);
}

.action-badge.action-visibility {
    background: var(--primary-gold);
    color: var(--primary-black);
}

.action-badge.action-deleted {
    background: var(--error);
    color: var(--white);
}

.field-name {
    font-size: 0.85rem;
    color: var(--gray-500);
}

.history-summary {
    font-size: 0.85rem;
    color: var(--gray-700);
    margin-bottom: 0.5rem;
}

.history-meta {
    display: flex;
    justify-content: space-between;
    font-size: 0.75rem;
    color: var(--gray-500);
}

/* ===== Comments ===== */
.comment-form {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.comment-form textarea {
    padding: 0.75rem;
    border: 1px solid var(--gray-300);
    border-radius: var(--border-radius);
    resize: vertical;
    min-height: 80px;
}

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

.btn-submit-comment {
    padding: 0.75rem;
    background: var(--primary-gold);
    color: var(--primary-black);
    border-radius: var(--border-radius);
    font-weight: 500;
    transition: var(--transition);
}

.btn-submit-comment:hover {
    background: var(--primary-gold-light);
}

.comments-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    max-height: 400px;
    overflow-y: auto;
}

.comment-item {
    padding: 1rem;
    background: var(--gray-100);
    border-radius: var(--border-radius);
}

.comment-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
}

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

.comment-meta {
    flex: 1;
}

.comment-author {
    display: block;
    font-weight: 500;
    color: var(--gray-800);
}

.comment-date {
    font-size: 0.8rem;
    color: var(--gray-500);
}

.comment-content {
    font-size: 0.9rem;
    color: var(--gray-700);
    line-height: 1.5;
}

/* ===== Discussions ===== */
.btn-new-discussion {
    width: 100%;
    padding: 0.75rem;
    background: var(--gray-100);
    color: var(--gray-700);
    border-radius: var(--border-radius);
    font-weight: 500;
    margin-bottom: 1rem;
    transition: var(--transition);
}

.btn-new-discussion:hover {
    background: var(--primary-gold);
    color: var(--primary-black);
}

.discussion-form {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.discussion-form input,
.discussion-form textarea {
    padding: 0.75rem;
    border: 1px solid var(--gray-300);
    border-radius: var(--border-radius);
}

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

.discussion-form textarea {
    resize: vertical;
    min-height: 100px;
}

.form-actions {
    display: flex;
    gap: 0.5rem;
}

.btn-submit {
    flex: 1;
    padding: 0.75rem;
    background: var(--primary-gold);
    color: var(--primary-black);
    border-radius: var(--border-radius);
    font-weight: 500;
    transition: var(--transition);
}

.btn-cancel {
    padding: 0.75rem 1rem;
    background: var(--gray-200);
    color: var(--gray-700);
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.discussions-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.discussion-item {
    padding: 0.75rem;
    background: var(--gray-100);
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
}

.discussion-item:hover {
    background: var(--gray-200);
}

.discussion-item h4 {
    font-size: 0.9rem;
    margin-bottom: 0.25rem;
    color: var(--gray-800);
}

.discussion-preview {
    font-size: 0.85rem;
    color: var(--gray-500);
    margin-bottom: 0.5rem;
}

.discussion-meta {
    display: flex;
    justify-content: space-between;
    font-size: 0.75rem;
    color: var(--gray-500);
}

.empty-message {
    text-align: center;
    padding: 2rem;
    color: var(--gray-500);
    font-size: 0.9rem;
}

/* ===== Browse Page ===== */
.browse-container {
    padding: 2rem 0;
}

.browse-header {
    text-align: center;
    margin-bottom: 2rem;
}

.browse-header h1 {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}

.browse-header h1 i {
    color: var(--primary-gold);
}

.browse-layout {
    display: grid;
    grid-template-columns: 250px 1fr;
    gap: 2rem;
}

.browse-sidebar {
    position: sticky;
    top: 100px;
    align-self: start;
}

.sidebar-widget {
    background: var(--white);
    border-radius: var(--border-radius-lg);
    padding: 1.5rem;
    box-shadow: var(--shadow-sm);
}

.sidebar-widget h3 {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
    font-size: 1rem;
}

.sidebar-widget h3 i {
    color: var(--primary-gold);
}

.filter-section {
    margin-bottom: 1.5rem;
}

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

.filter-section h4 {
    font-size: 0.9rem;
    color: var(--gray-600);
    margin-bottom: 0.75rem;
}

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

.category-list a {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0.75rem;
    color: var(--gray-600);
    font-size: 0.9rem;
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.category-list a:hover,
.category-list a.active {
    background: var(--gray-100);
    color: var(--primary-gold);
}

.category-list .count {
    margin-left: auto;
    font-size: 0.8rem;
    color: var(--gray-400);
}

.sort-select {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--gray-300);
    border-radius: var(--border-radius);
    background: var(--white);
    cursor: pointer;
}

.sort-select:focus {
    outline: none;
    border-color: var(--primary-gold);
}

.browse-main {
    min-width: 0;
}

.browse-breadcrumb {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
    font-size: 0.9rem;
    color: var(--gray-500);
}

.browse-breadcrumb a {
    color: var(--gray-500);
}

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

.browse-breadcrumb span {
    color: var(--gray-700);
}

.empty-state {
    text-align: center;
    padding: 4rem 2rem;
    background: var(--white);
    border-radius: var(--border-radius-lg);
}

.empty-state i {
    font-size: 4rem;
    color: var(--gray-300);
    margin-bottom: 1rem;
}

.empty-state h2 {
    margin-bottom: 0.5rem;
}

.empty-state p {
    color: var(--gray-500);
    margin-bottom: 1.5rem;
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.875rem 1.5rem;
    background: var(--primary-gold);
    color: var(--primary-black);
    border-radius: var(--border-radius);
    font-weight: 500;
    transition: var(--transition);
}

.btn-primary:hover {
    background: var(--primary-gold-light);
    color: var(--primary-black);
}

/* ===== Pagination ===== */
.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    margin-top: 2rem;
}

.pagination-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    background: var(--white);
    color: var(--gray-700);
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.pagination-btn:hover {
    background: var(--primary-gold);
    color: var(--primary-black);
}

.pagination-info {
    font-weight: 500;
    color: var(--gray-600);
}

/* ===== Library Page ===== */
.library-container {
    padding: 2rem 0;
}

.library-header {
    margin-bottom: 2rem;
}

.library-header h1 {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}

.library-header h1 i {
    color: var(--primary-gold);
}

.user-welcome {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.5rem;
    background: var(--white);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-sm);
}

.user-avatar-lg {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--primary-gold);
}

.user-welcome h2 {
    font-size: 1.25rem;
    margin-bottom: 0.25rem;
}

.user-welcome p {
    color: var(--gray-500);
    font-size: 0.9rem;
}

.library-tabs {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
    border-bottom: 2px solid var(--gray-200);
    overflow-x: auto;
}

.tab-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 1.5rem;
    color: var(--gray-500);
    font-weight: 500;
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    transition: var(--transition);
    white-space: nowrap;
}

.tab-btn:hover {
    color: var(--gray-700);
}

.tab-btn.active {
    color: var(--primary-gold);
    border-bottom-color: var(--primary-gold);
}

.tab-content {
    display: none;
}

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

.history-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
}

.history-card {
    display: flex;
    gap: 1rem;
    padding: 1rem;
    background: var(--white);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-sm);
}

.history-cover {
    width: 80px;
    height: 120px;
    flex-shrink: 0;
    border-radius: var(--border-radius);
    overflow: hidden;
    background: var(--gray-200);
}

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

.cover-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gray-800);
    color: var(--primary-gold);
}

.history-info {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.history-info h3 {
    font-size: 1rem;
    margin-bottom: 0.25rem;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.history-info .author {
    color: var(--gray-500);
    font-size: 0.85rem;
    margin-bottom: 0.5rem;
}

.progress-bar {
    height: 6px;
    background: var(--gray-200);
    border-radius: 3px;
    margin-bottom: 0.25rem;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: var(--primary-gold);
    border-radius: 3px;
}

.progress-text {
    font-size: 0.85rem;
    color: var(--gray-600);
    margin-bottom: 0.25rem;
}

.last-read {
    font-size: 0.8rem;
    color: var(--gray-500);
    margin-bottom: 0.5rem;
}

.btn-continue {
    margin-top: auto;
    padding: 0.5rem 1rem;
    background: var(--primary-gold);
    color: var(--primary-black);
    border-radius: var(--border-radius);
    font-size: 0.85rem;
    font-weight: 500;
    text-align: center;
    transition: var(--transition);
}

.btn-continue:hover {
    background: var(--primary-gold-light);
    color: var(--primary-black);
}

/* ===== Ratings & Comments in Library ===== */
.ratings-list,
.comments-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.rating-card,
.comment-card {
    display: flex;
    gap: 1rem;
    padding: 1rem;
    background: var(--white);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-sm);
}

.rating-cover,
.comment-cover {
    width: 60px;
    height: 90px;
    flex-shrink: 0;
    border-radius: var(--border-radius);
    overflow: hidden;
    background: var(--gray-200);
}

.rating-cover img,
.comment-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.rating-info,
.comment-info {
    flex: 1;
}

.rating-info h3,
.comment-info h3 {
    font-size: 1rem;
    margin-bottom: 0.5rem;
}

.rating-info h3 a,
.comment-info h3 a {
    color: var(--gray-800);
}

.rating-info h3 a:hover,
.comment-info h3 a:hover {
    color: var(--primary-gold);
}

.user-rating {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--primary-gold);
    margin-bottom: 0.5rem;
}

.rating-value {
    color: var(--gray-600);
    font-size: 0.9rem;
}

.review-text,
.comment-text {
    color: var(--gray-600);
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
    line-height: 1.5;
}

.rating-date,
.comment-date {
    font-size: 0.8rem;
    color: var(--gray-500);
}

/* ===== Alerts ===== */
.alert {
    padding: 1rem;
    border-radius: var(--border-radius);
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.alert-success {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success);
    border: 1px solid var(--success);
}

.alert-error {
    background: rgba(239, 68, 68, 0.1);
    color: var(--error);
    border: 1px solid var(--error);
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .browse-layout {
        grid-template-columns: 1fr;
    }

    .browse-sidebar {
        position: static;
    }

    .reader-sidebar {
        width: 300px;
    }
}

@media (max-width: 768px) {
    .mobile-menu-btn {
        display: flex;
    }

    .nav-menu {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        flex-direction: column;
        background: var(--primary-black);
        padding: 1rem;
        display: none;
        box-shadow: var(--shadow-lg);
    }

    .nav-menu.show {
        display: flex;
    }

    .nav-menu a {
        width: 100%;
        padding: 1rem;
        border-radius: var(--border-radius);
    }

    .user-name {
        display: none;
    }

    .hero {
        padding: 2rem 0;
    }

    .hero h1 {
        font-size: 1.5rem;
    }

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

    .hero-stats {
        gap: 1rem;
    }

    .stat-item {
        flex: 1;
        min-width: 80px;
    }

    .features-grid {
        grid-template-columns: 1fr;
    }

    .ebooks-grid {
        grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    }

    .reader-main {
        flex-direction: column;
    }

    .reader-sidebar {
        width: 100%;
        max-height: 50vh;
    }

    .reader-sidebar.collapsed {
        display: none;
    }

    .sidebar-toggle {
        display: none;
    }

    .history-card {
        flex-direction: column;
    }

    .history-cover {
        width: 100%;
        height: 150px;
    }

    .rating-card,
    .comment-card {
        flex-direction: column;
    }

    .rating-cover,
    .comment-cover {
        width: 100%;
        height: 120px;
    }

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

    .footer-info p {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 0.75rem;
    }

    .modal-content {
        padding: 1.5rem;
    }

    .cta-buttons {
        flex-direction: column;
    }

    .cta-buttons a {
        width: 100%;
        justify-content: center;
    }

    .ebooks-grid {
        grid-template-columns: 1fr;
    }

    .categories-grid {
        grid-template-columns: 1fr;
    }

    .library-tabs {
        flex-wrap: nowrap;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    .tab-btn {
        padding: 0.75rem 1rem;
        font-size: 0.9rem;
    }

    .tab-btn span {
        display: none;
    }
}

/* ===== Print ===== */
@media print {
    .main-header,
    .main-footer,
    .reader-sidebar,
    .pdf-controls,
    .protection-overlay {
        display: none !important;
    }

    .pdf-viewer {
        background: white;
    }

    #pdfCanvas {
        max-width: 100%;
        page-break-inside: avoid;
    }
}