@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&family=Lora:ital,wght@0,400;0,500;0,600;0,700;1,400&display=swap');

:root {
    /* Color Palette */
    --bg-primary: #f6f1e9;
    --bg-secondary: #ede3d3;
    --bg-card: #ffffff;
    --accent-primary: #9a6b3f;
    --accent-secondary: #6b4226;
    --accent-tertiary: #c08a4b;
    --gradient-warm: linear-gradient(135deg, #9a6b3f, #c08a4b);
    --text-primary: #1f1f1f;
    --text-secondary: #6b6b6b;
    --border-light: #e0d5c1;

    /* Typography */
    --font-heading: 'Lora', serif;
    --font-body: 'Inter', sans-serif;

    /* Spacing & Layout */
    --container-max: 1200px;
    --container-padding: 24px;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    
    /* Shadows */
    --shadow-soft: 0 8px 24px rgba(107, 66, 38, 0.06);
    --shadow-hover: 0 16px 40px rgba(154, 107, 63, 0.15);
    
    /* Transitions */
    --transition-smooth: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

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

body {
    font-family: var(--font-body);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    color: var(--text-primary);
    font-weight: 600;
    line-height: 1.3;
}

p {
    margin-bottom: 1rem;
    color: var(--text-secondary);
}

a {
    color: var(--accent-secondary);
    text-decoration: none;
    transition: var(--transition-smooth);
}

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

ul {
    list-style: none;
}

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

/* Layout System */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.container-narrow {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.section {
    padding: 110px 0;
}

.section-bg {
    background-color: var(--bg-secondary);
    background-image: url('images/subtle-warm-paper-texture-background.jpg');
    background-blend-mode: multiply;
}

.grid {
    display: grid;
    gap: 40px;
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

/* Header & Navigation */
.site-header {
    background-color: rgba(246, 241, 233, 0.95);
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid var(--border-light);
    box-shadow: 0 4px 12px rgba(0,0,0,0.02);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.brand-logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent-secondary);
    letter-spacing: -0.5px;
}

.nav-links {
    display: flex;
    gap: 32px;
    align-items: center;
}

.nav-links a {
    color: var(--text-primary);
    font-weight: 500;
    font-size: 0.95rem;
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -4px;
    left: 0;
    background-color: var(--accent-tertiary);
    transition: var(--transition-smooth);
}

.nav-links a:hover::after,
.nav-links a.active::after {
    width: 100%;
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    flex-direction: column;
    gap: 5px;
}

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

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 28px;
    border-radius: var(--radius-md);
    font-weight: 500;
    font-size: 1rem;
    cursor: pointer;
    border: none;
    transition: var(--transition-smooth);
    text-align: center;
}

.btn-primary {
    background: var(--gradient-warm);
    color: #ffffff;
    box-shadow: 0 4px 12px rgba(154, 107, 63, 0.2);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(154, 107, 63, 0.3);
    color: #ffffff;
}

.btn-secondary {
    background-color: transparent;
    color: var(--accent-secondary);
    border: 1px solid var(--accent-primary);
}

.btn-secondary:hover {
    background-color: var(--accent-primary);
    color: #ffffff;
}

/* Hero Section */
.hero {
    padding: 80px 0 110px;
    position: relative;
    overflow: hidden;
}

.hero-content {
    display: flex;
    align-items: center;
    gap: 60px;
}

.hero-text {
    flex: 1;
}

.hero-text h1 {
    font-size: 3.5rem;
    margin-bottom: 24px;
    color: var(--accent-secondary);
}

.hero-text p {
    font-size: 1.125rem;
    margin-bottom: 32px;
    max-width: 500px;
}

.hero-actions {
    display: flex;
    gap: 16px;
}

.hero-image {
    flex: 1;
    position: relative;
}

.hero-image img {
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-hover);
    object-fit: cover;
    aspect-ratio: 4/3;
}

/* Book Cards */
.book-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-soft);
    transition: var(--transition-smooth);
    display: flex;
    flex-direction: column;
    height: 100%;
}

.book-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
}

.book-card-cover {
    width: 100%;
    aspect-ratio: 2/3;
    object-fit: cover;
    border-bottom: 1px solid var(--border-light);
}

.book-card-content {
    padding: 24px;
    display: flex;
    flex-direction: column;
    flex: 1;
}

.book-category {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--accent-primary);
    margin-bottom: 8px;
    font-weight: 600;
}

.book-title {
    font-size: 1.25rem;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.book-author {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-bottom: 16px;
    font-style: italic;
}

.book-rating {
    display: flex;
    gap: 4px;
    margin-bottom: 16px;
    color: var(--accent-tertiary);
}

.book-excerpt {
    font-size: 0.9rem;
    margin-bottom: 24px;
    flex: 1;
}

.book-link {
    margin-top: auto;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--accent-secondary);
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.book-link:hover {
    color: var(--accent-primary);
}

/* Section Headers */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    font-size: 2.5rem;
    color: var(--accent-secondary);
    margin-bottom: 16px;
}

.section-header p {
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto;
}

/* Categories Section */
.category-card {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    aspect-ratio: 16/9;
    display: block;
    box-shadow: var(--shadow-soft);
}

.category-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

.category-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(107, 66, 38, 0.8), rgba(0,0,0,0.1));
    display: flex;
    align-items: flex-end;
    padding: 24px;
}

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

.category-title {
    color: #ffffff;
    font-size: 1.5rem;
    margin: 0;
}

/* Author Cards */
.author-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 32px;
    text-align: center;
    box-shadow: var(--shadow-soft);
    transition: var(--transition-smooth);
}

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

.author-img {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    object-fit: cover;
    margin: 0 auto 20px;
    border: 4px solid var(--bg-secondary);
}

.author-name {
    font-size: 1.25rem;
    margin-bottom: 8px;
}

.author-bio {
    font-size: 0.9rem;
    margin-bottom: 20px;
}

/* Individual Book Page */
.book-single-hero {
    background-color: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 40px;
    box-shadow: var(--shadow-soft);
    margin-bottom: 60px;
    margin-top: 40px;
}

.book-single-grid {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 60px;
    align-items: start;
}

.book-single-cover img {
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-hover);
    width: 100%;
}

.book-single-info h1 {
    font-size: 3rem;
    margin-bottom: 8px;
    color: var(--accent-secondary);
}

.book-single-author {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 24px;
    font-family: var(--font-heading);
    font-style: italic;
}

.book-meta {
    display: flex;
    gap: 32px;
    margin-bottom: 32px;
    padding-bottom: 32px;
    border-bottom: 1px solid var(--border-light);
}

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

.meta-label {
    font-size: 0.8rem;
    text-transform: uppercase;
    color: var(--accent-primary);
    font-weight: 600;
}

.meta-value {
    font-size: 1rem;
    color: var(--text-primary);
    font-weight: 500;
}

.review-content {
    font-size: 1.1rem;
    line-height: 1.8;
}

.review-content p:first-of-type::first-letter {
    font-family: var(--font-heading);
    font-size: 3.5rem;
    float: left;
    line-height: 1;
    padding-right: 12px;
    color: var(--accent-primary);
}

.review-content h3 {
    margin: 40px 0 20px;
    font-size: 1.75rem;
}

.review-content blockquote {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-style: italic;
    color: var(--accent-secondary);
    border-left: 4px solid var(--accent-tertiary);
    padding-left: 24px;
    margin: 40px 0;
}

/* Forms */
.contact-form {
    background: var(--bg-card);
    padding: 40px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-soft);
}

.form-group {
    margin-bottom: 24px;
}

.form-label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
}

.form-control {
    width: 100%;
    padding: 14px 16px;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-sm);
    font-family: var(--font-body);
    font-size: 1rem;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    transition: var(--transition-smooth);
}

.form-control:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(154, 107, 63, 0.1);
}

textarea.form-control {
    min-height: 150px;
    resize: vertical;
}

/* Newsletter */
.newsletter-section {
    background: var(--gradient-warm);
    color: #ffffff;
    text-align: center;
    border-radius: var(--radius-lg);
    padding: 60px 40px;
    margin: 60px 0;
}

.newsletter-section h2 {
    color: #ffffff;
    font-size: 2.5rem;
    margin-bottom: 16px;
}

.newsletter-section p {
    color: rgba(255,255,255,0.9);
    margin-bottom: 32px;
    font-size: 1.1rem;
}

.newsletter-form {
    display: flex;
    max-width: 500px;
    margin: 0 auto;
    gap: 12px;
}

.newsletter-form input {
    flex: 1;
    padding: 14px 20px;
    border: none;
    border-radius: var(--radius-md);
    font-size: 1rem;
}

.newsletter-form button {
    background: var(--bg-primary);
    color: var(--accent-secondary);
    font-weight: 600;
}

.newsletter-form button:hover {
    background: var(--bg-card);
    transform: translateY(0);
}

/* Footer */
.site-footer {
    background-color: var(--bg-secondary);
    padding: 80px 0 40px;
    border-top: 1px solid var(--border-light);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 60px;
    margin-bottom: 60px;
}

.footer-brand p {
    margin-top: 16px;
    max-width: 300px;
}

.footer-title {
    font-size: 1.1rem;
    margin-bottom: 24px;
    color: var(--accent-secondary);
}

.footer-links li {
    margin-bottom: 12px;
}

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

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

.footer-bottom {
    text-align: center;
    padding-top: 40px;
    border-top: 1px solid var(--border-light);
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Legal Pages */
.legal-content h2 {
    margin: 32px 0 16px;
}

.legal-content ul {
    list-style: disc;
    margin-left: 24px;
    margin-bottom: 24px;
}

/* Animations & Utilities */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }

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

/* Responsive Media Queries */
@media (max-width: 992px) {
    .section { padding: 80px 0; }
    .grid-4 { grid-template-columns: repeat(2, 1fr); }
    .hero-content { flex-direction: column; text-align: center; }
    .hero-text p { margin: 0 auto 32px; }
    .hero-actions { justify-content: center; }
    .book-single-grid { grid-template-columns: 1fr; gap: 40px; }
    .book-single-cover img { max-width: 400px; margin: 0 auto; }
}

@media (max-width: 768px) {
    .section { padding: 60px 0; }
    .grid-3, .grid-2 { grid-template-columns: 1fr; }
    
    .mobile-menu-btn { display: flex; z-index: 1001; }
    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 400px;
        height: 100vh;
        background-color: var(--bg-card);
        flex-direction: column;
        justify-content: center;
        padding: 40px;
        box-shadow: var(--shadow-hover);
        transition: right 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
    }
    .nav-links.active { right: 0; }
    
    .hero-text h1 { font-size: 2.5rem; }
    .footer-grid { grid-template-columns: 1fr; gap: 40px; }
    .newsletter-form { flex-direction: column; }
    .book-meta { flex-wrap: wrap; gap: 16px; }
}