:root {
    --color-primary: #8b0000;
    --color-primary-dark: #5c0000;
    --color-secondary: #c9a962;
    --color-secondary-dark: #b8954f;
    --color-accent: #e8b440;
    --color-white: #ffffff;
    --color-off-white: #f8f6f1;
    --color-light-gray: #e8e6e1;
    --color-gray: #6b6b6b;
    --color-dark-gray: #333333;
    --color-text: #2d2d2d;
    --color-text-light: #5a5a5a;
    --color-error: #c0392b;
    --color-success: #27ae60;

    --font-heading: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 5rem;
    --spacing-xxl: 8rem;

    --container-max: 1200px;
    --container-padding: 1.5rem;

    --border-radius: 4px;
    --border-radius-lg: 8px;

    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;

    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.16);

    --header-height: 80px;
}

*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

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

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

body {
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.7;
    color: var(--color-text);
    background-color: var(--color-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

a {
    color: inherit;
    text-decoration: none;
}

ul,
ol {
    list-style: none;
}

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

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

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

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

.section {
    padding: var(--spacing-xl) 0;
}

.section-header {
    text-align: center;
    max-width: 800px;
    margin: 0 auto var(--spacing-lg);
}

.section-title {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 600;
    color: var(--color-primary);
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--color-text-light);
    font-weight: 400;
}

.page-header {
    padding: var(--spacing-xxl) 0 var(--spacing-xl);
    background-color: var(--color-off-white);
    text-align: center;
}

.page-title {
    font-family: var(--font-heading);
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 600;
    color: var(--color-primary);
    line-height: 1.1;
    margin-bottom: var(--spacing-xs);
}

.page-subtitle {
    font-size: 1.25rem;
    color: var(--color-text-light);
    font-weight: 300;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    font-size: 1rem;
    font-weight: 600;
    line-height: 1;
    border-radius: var(--border-radius);
    transition: all var(--transition-normal);
    white-space: nowrap;
}

.btn-primary {
    background-color: var(--color-primary);
    color: var(--color-white);
    border: 2px solid var(--color-primary);
}

.btn-primary:hover,
.btn-primary:focus {
    background-color: var(--color-primary-dark);
    border-color: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background-color: transparent;
    color: var(--color-primary);
    border: 2px solid var(--color-primary);
}

.btn-secondary:hover,
.btn-secondary:focus {
    background-color: var(--color-primary);
    color: var(--color-white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-large {
    padding: 1.25rem 2.5rem;
    font-size: 1.125rem;
}

.btn:focus-visible {
    outline: 3px solid var(--color-accent);
    outline-offset: 3px;
}

.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background-color: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-light-gray);
    z-index: 1000;
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

.logo-text {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-primary);
    line-height: 1.2;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.nav-link {
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--color-text);
    padding: 0.5rem 0;
    position: relative;
    transition: color var(--transition-fast);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-secondary);
    transition: width var(--transition-normal);
}

.nav-link:hover,
.nav-link.active {
    color: var(--color-primary);
}

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

.nav-cta {
    padding: 0.625rem 1.5rem;
    background-color: var(--color-primary);
    color: var(--color-white);
    border-radius: var(--border-radius);
    font-weight: 600;
    transition: all var(--transition-fast);
}

.nav-cta:hover {
    background-color: var(--color-primary-dark);
    color: var(--color-white);
    transform: none;
    box-shadow: none;
}

.nav-cta::after {
    display: none;
}

.nav-toggle {
    display: none;
    width: 44px;
    height: 44px;
    align-items: center;
    justify-content: center;
}

.hamburger {
    position: relative;
    width: 24px;
    height: 2px;
    background-color: var(--color-primary);
    transition: background-color var(--transition-fast);
}

.hamburger::before,
.hamburger::after {
    content: '';
    position: absolute;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--color-primary);
    transition: transform var(--transition-normal);
}

.hamburger::before {
    top: -8px;
}

.hamburger::after {
    bottom: -8px;
}

.nav-toggle[aria-expanded="true"] .hamburger {
    background-color: transparent;
}

.nav-toggle[aria-expanded="true"] .hamburger::before {
    transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle[aria-expanded="true"] .hamburger::after {
    transform: rotate(-45deg) translate(5px, -5px);
}

.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding-top: var(--header-height);
    overflow: hidden;
}

.hero-background {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, #8b0000 0%, #c0392b 50%, #a93226 100%);
    z-index: -1;
}

.hero-background::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 400 400' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
    opacity: 0.03;
    pointer-events: none;
}

.hero-content {
    text-align: center;
    padding: var(--spacing-xl) 0;
}

.hero-title {
    font-family: var(--font-heading);
    font-size: clamp(3rem, 8vw, 6rem);
    font-weight: 700;
    color: var(--color-white);
    line-height: 1.1;
    margin-bottom: var(--spacing-lg);
    text-shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    flex-wrap: wrap;
}

.hero .btn {
    padding: 1.125rem 2.5rem;
    font-size: 1.125rem;
    min-width: 140px;
}

.hero .btn-primary {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
    color: var(--color-white);
}

.hero .btn-primary:hover,
.hero .btn-primary:focus {
    background-color: var(--color-primary-dark);
    border-color: var(--color-primary-dark);
    color: var(--color-white);
}

.hero .btn-secondary {
    background-color: transparent;
    border-color: var(--color-white);
    color: var(--color-white);
}

.hero .btn-secondary:hover,
.hero .btn-secondary:focus {
    background-color: var(--color-white);
    color: var(--color-primary);
}

.hero-scroll-indicator {
    position: absolute;
    bottom: var(--spacing-lg);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    color: rgba(255, 255, 255, 0.7);
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    40% {
        transform: translateX(-50%) translateY(-10px);
    }
    60% {
        transform: translateX(-50%) translateY(-5px);
    }
}

.scroll-text {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    font-weight: 600;
}

.scroll-arrow {
    width: 24px;
    height: 24px;
}

.welcome {
    background-color: var(--color-off-white);
    text-align: center;
}

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

.welcome-text {
    font-size: 1.25rem;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-md);
    line-height: 1.8;
}

.book-origin {
    background-color: var(--color-white);
}

.origin-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: start;
}

.origin-text .section-title {
    text-align: left;
    margin-bottom: var(--spacing-xs);
}

.subtitle {
    font-size: 1.125rem;
    color: var(--color-secondary);
    font-weight: 500;
    margin-bottom: var(--spacing-md);
    display: block;
}

.origin-text p {
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
    line-height: 1.8;
}

.origin-text p strong {
    color: var(--color-primary);
}

.origin-text em {
    font-style: italic;
}

.origin-text .btn {
    margin-top: var(--spacing-sm);
}

.origin-image img {
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
}

.book-details {
    background-color: var(--color-off-white);
}

.details-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    margin-top: var(--spacing-lg);
}

.detail-card {
    background-color: var(--color-white);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-sm);
}

.detail-card h3 {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
    line-height: 1.3;
}

.detail-card p {
    color: var(--color-text-light);
    margin-bottom: var(--spacing-md);
}

.benefits {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.benefit h4 {
    font-family: var(--font-heading);
    font-size: 1.125rem;
    color: var(--color-primary);
    margin-bottom: var(--spacing-xs);
}

.benefit ul {
    display: flex;
    flex-direction: column;
    gap: 0.375rem;
}

.benefit li {
    position: relative;
    padding-left: 1.5rem;
    color: var(--color-text-light);
    font-size: 0.9375rem;
}

.benefit li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--color-secondary);
    font-weight: 600;
}

.testimonial-quote {
    max-width: 800px;
    margin: var(--spacing-xl) auto 0;
    padding: var(--spacing-lg);
    background-color: var(--color-white);
    border-left: 4px solid var(--color-secondary);
    border-radius: 0 var(--border-radius-lg) var(--border-radius-lg) 0;
    box-shadow: var(--shadow-sm);
}

.testimonial-quote p {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-style: italic;
    color: var(--color-primary);
    text-align: center;
    line-height: 1.5;
}

.book-cover-section {
    background-color: var(--color-white);
    padding: var(--spacing-xxl) 0;
}

.cover-content {
    max-width: 500px;
    margin: 0 auto;
}

.book-cover-large {
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
}

.audience {
    background-color: var(--color-off-white);
    text-align: center;
}

.audience .section-title {
    margin-bottom: var(--spacing-lg);
}

.audience-list {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.audience-list li {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 1.125rem;
    color: var(--color-text);
    font-weight: 500;
}

.audience-list .icon {
    font-size: 1.25rem;
}

.audience-cta p {
    font-size: 1.125rem;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-md);
}

.blog-grid {
    padding-top: var(--spacing-lg);
}

.blog-post-card {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: var(--spacing-lg);
    background-color: var(--color-white);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.blog-post-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.post-image {
    position: relative;
    overflow: hidden;
}

.post-image img {
    width: 100%;
    height: 100%;
    min-height: 250px;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.blog-post-card:hover .post-image img {
    transform: scale(1.05);
}

.post-content {
    padding: var(--spacing-lg);
    display: flex;
    flex-direction: column;
}

.post-meta {
    margin-bottom: var(--spacing-sm);
}

.post-categories {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.category {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--color-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 0.25rem 0.75rem;
    background-color: rgba(201, 169, 98, 0.1);
    border-radius: 100px;
    transition: all var(--transition-fast);
}

.category:hover {
    background-color: var(--color-secondary);
    color: var(--color-white);
}

.post-title {
    font-family: var(--font-heading);
    font-size: 1.75rem;
    font-weight: 600;
    color: var(--color-primary);
    line-height: 1.3;
    margin-bottom: var(--spacing-sm);
}

.post-title a:hover {
    color: var(--color-secondary);
}

.post-byline {
    display: flex;
    gap: var(--spacing-md);
    font-size: 0.875rem;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-md);
    flex-wrap: wrap;
}

.post-byline .author a {
    font-weight: 600;
    color: var(--color-primary);
}

.post-byline .author a:hover {
    color: var(--color-secondary);
}

.post-excerpt {
    color: var(--color-text-light);
    line-height: 1.7;
    margin-bottom: var(--spacing-md);
    flex-grow: 1;
}

.read-more {
    font-weight: 600;
    color: var(--color-primary);
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    transition: gap var(--transition-fast);
}

.read-more:hover {
    color: var(--color-secondary);
    gap: 0.625rem;
}

.newsletter-section {
    background-color: var(--color-primary);
    color: var(--color-white);
    text-align: center;
}

.newsletter-section .section-title {
    color: var(--color-white);
}

.newsletter-content p {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: var(--spacing-md);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.newsletter-content em {
    font-style: italic;
    color: var(--color-accent);
}

.newsletter-content .btn-primary {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
    color: var(--color-white);
}

.newsletter-content .btn-primary:hover {
    background-color: var(--color-white);
    border-color: var(--color-white);
    color: var(--color-primary);
}

.blog-post {
    padding-top: var(--spacing-lg);
}

.post-header {
    text-align: center;
    max-width: 800px;
    margin: 0 auto var(--spacing-xl);
}

.post-header .post-categories {
    justify-content: center;
    margin-bottom: var(--spacing-md);
}

.post-title {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 600;
    color: var(--color-primary);
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
}

.post-byline {
    justify-content: center;
    flex-wrap: wrap;
}

.post-featured-image {
    max-width: 900px;
    margin: 0 auto var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.post-content {
    max-width: 800px;
    margin: 0 auto;
    font-size: 1.125rem;
    line-height: 1.8;
}

.post-content .lead {
    font-size: 1.25rem;
    font-weight: 500;
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
    font-style: italic;
}

.post-content p {
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
}

.post-content strong {
    color: var(--color-primary);
}

.post-content h2 {
    font-family: var(--font-heading);
    font-size: 2rem;
    color: var(--color-primary);
    margin: var(--spacing-xl) 0 var(--spacing-md);
    padding-bottom: var(--spacing-xs);
    border-bottom: 2px solid var(--color-light-gray);
}

.post-content h3 {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    color: var(--color-primary);
    margin: var(--spacing-lg) 0 var(--spacing-sm);
}

.post-content blockquote.scripture {
    margin: var(--spacing-lg) 0;
    padding: var(--spacing-md) var(--spacing-lg);
    background-color: var(--color-off-white);
    border-left: 4px solid var(--color-secondary);
    border-radius: 0 var(--border-radius) var(--border-radius) 0;
    font-style: italic;
}

.post-content blockquote.scripture p {
    margin-bottom: var(--spacing-xs);
    color: var(--color-text);
}

.post-content blockquote.scripture cite {
    display: block;
    font-style: normal;
    font-size: 0.9375rem;
    color: var(--color-text-light);
    text-align: right;
}

.book-cta-box {
    background-color: var(--color-off-white);
    border: 2px solid var(--color-light-gray);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg);
    margin: var(--spacing-xl) 0;
    text-align: center;
}

.book-cta-box h3 {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}

.book-cta-box p {
    margin-bottom: var(--spacing-md);
    color: var(--color-text-light);
}

.book-cta-box .btn {
    margin-top: var(--spacing-xs);
}

.post-footer {
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--color-light-gray);
}

.nav-link-back {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    color: var(--color-primary);
    transition: gap var(--transition-fast);
}

.nav-link-back:hover {
    color: var(--color-secondary);
    gap: 0.75rem;
}

.comments-section {
    background-color: var(--color-off-white);
    padding-top: var(--spacing-xl);
}

.comment-form {
    max-width: 700px;
    margin: 0 auto;
}

.comment-notice {
    font-size: 0.875rem;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-md);
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
}

.form-group label {
    display: block;
    font-weight: 500;
    color: var(--color-primary);
    margin-bottom: var(--spacing-xs);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.875rem 1rem;
    border: 2px solid var(--color-light-gray);
    border-radius: var(--border-radius);
    background-color: var(--color-white);
    color: var(--color-text);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-secondary);
    box-shadow: 0 0 0 3px rgba(201, 169, 98, 0.2);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--color-gray);
}

.checkbox-group {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
}

.checkbox-group input {
    width: auto;
    margin-top: 0.25rem;
}

.checkbox-group label {
    margin-bottom: 0;
    font-weight: 400;
    color: var(--color-text-light);
    font-size: 0.875rem;
    cursor: pointer;
}

.purchase-section {
    padding-top: var(--spacing-lg);
}

.purchase-grid {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: var(--spacing-xl);
    align-items: start;
    margin-bottom: var(--spacing-xxl);
}

.book-showcase {
    position: sticky;
    top: calc(var(--header-height) + var(--spacing-lg));
}

.book-cover-main {
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
}

.purchase-options .section-title {
    text-align: left;
    margin-bottom: var(--spacing-lg);
}

.option-cards {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.option-card {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background-color: var(--color-white);
    border: 2px solid var(--color-light-gray);
    border-radius: var(--border-radius-lg);
    transition: all var(--transition-normal);
}

.option-card:hover {
    border-color: var(--color-secondary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.option-icon {
    flex-shrink: 0;
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-off-white);
    border-radius: var(--border-radius);
    color: var(--color-primary);
}

.option-whatsapp .option-icon {
    color: #25D366;
}

.option-amazon .option-icon {
    color: #FF9900;
}

.option-content h3 {
    font-family: var(--font-heading);
    font-size: 1.125rem;
    color: var(--color-primary);
    margin-bottom: 0.25rem;
}

.option-content p {
    font-size: 0.875rem;
    color: var(--color-text-light);
}

.option-arrow {
    margin-left: auto;
    font-size: 1.25rem;
    color: var(--color-gray);
    transition: transform var(--transition-fast);
}

.option-card:hover .option-arrow {
    transform: translateX(4px);
    color: var(--color-secondary);
}

.digital-version {
    padding: var(--spacing-md);
    background-color: var(--color-off-white);
    border-radius: var(--border-radius-lg);
    text-align: center;
}

.digital-version h3 {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    color: var(--color-primary);
    margin-bottom: var(--spacing-xs);
}

.digital-version p {
    color: var(--color-text-light);
    font-size: 0.9375rem;
}

.book-gallery {
    margin-top: var(--spacing-xl);
}

.book-gallery .section-title {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
}

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

.gallery-item a {
    display: block;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.gallery-item a:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.gallery-item img {
    width: 100%;
    aspect-ratio: 3/4;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.gallery-item a:hover img {
    transform: scale(1.05);
}

.gallery-item figcaption {
    margin-top: var(--spacing-xs);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text-light);
}

.final-cta {
    background-color: var(--color-primary);
    color: var(--color-white);
    text-align: center;
}

.final-cta .section-title {
    color: var(--color-white);
}

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

.final-cta-content p {
    color: rgba(255, 255, 255, 0.8);
    font-size: 1.125rem;
    margin-bottom: var(--spacing-lg);
}

.final-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

.final-cta .btn-primary {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
    color: var(--color-white);
}

.final-cta .btn-primary:hover {
    background-color: var(--color-white);
    border-color: var(--color-white);
    color: var(--color-primary);
}

.final-cta .btn-secondary {
    border-color: var(--color-white);
    color: var(--color-white);
}

.final-cta .btn-secondary:hover {
    background-color: var(--color-white);
    color: var(--color-primary);
}

.footer {
    background-color: var(--color-primary-dark);
    color: rgba(255, 255, 255, 0.7);
    padding: var(--spacing-lg) 0;
    text-align: center;
}

.copyright {
    font-size: 0.875rem;
    margin-bottom: var(--spacing-xs);
}

.scroll-link {
    font-size: 0.875rem;
    color: var(--color-secondary);
    transition: color var(--transition-fast);
}

.scroll-link:hover {
    color: var(--color-white);
}

@media (max-width: 1024px) {
    .origin-content,
    .details-grid,
    .purchase-grid {
        grid-template-columns: 1fr;
    }

    .book-showcase {
        position: static;
        max-width: 400px;
        margin: 0 auto var(--spacing-xl);
    }

    .option-cards {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    :root {
        --header-height: 70px;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        top: var(--header-height);
        left: 0;
        right: 0;
        background-color: var(--color-white);
        flex-direction: column;
        padding: var(--spacing-lg);
        gap: var(--spacing-sm);
        border-bottom: 1px solid var(--color-light-gray);
        box-shadow: var(--shadow-md);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition-normal);
    }

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

    .nav-link {
        display: block;
        padding: var(--spacing-sm) 0;
        width: 100%;
        text-align: center;
    }

    .nav-link::after {
        display: none;
    }

    .nav-cta {
        width: 100%;
        text-align: center;
    }

    .hero {
        min-height: auto;
        padding: calc(var(--header-height) + var(--spacing-xl)) 0 var(--spacing-xl);
    }

    .hero-title {
        margin-bottom: var(--spacing-md);
    }

    .blog-post-card {
        grid-template-columns: 1fr;
    }

    .post-image {
        min-height: 200px;
    }

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

    .form-row {
        grid-template-columns: 1fr;
    }

    .final-buttons {
        flex-direction: column;
        align-items: center;
    }

    .final-buttons .btn {
        width: 100%;
        max-width: 300px;
    }
}

@media (max-width: 480px) {
    :root {
        --container-padding: 1rem;
        --spacing-xl: 3rem;
        --spacing-xxl: 5rem;
    }

    .logo-text {
        font-size: 1.25rem;
    }

    .btn {
        padding: 0.875rem 1.5rem;
        font-size: 0.9375rem;
    }

    .btn-large {
        padding: 1rem 2rem;
        font-size: 1rem;
    }

    .detail-card,
    .book-cta-box {
        padding: var(--spacing-md);
    }
}

@media print {
    .header,
    .hero-scroll-indicator,
    .nav-cta,
    .btn,
    .footer,
    .comment-form,
    .option-card,
    .final-cta {
        display: none !important;
    }

    .hero {
        min-height: auto;
        padding-top: 0;
        background: none !important;
        color: var(--color-text);
    }

    .hero-background {
        display: none;
    }

    .hero-title {
        color: var(--color-primary);
        text-shadow: none;
    }

    body {
        font-size: 12pt;
        line-height: 1.5;
    }

    .section {
        page-break-inside: avoid;
    }
}