/* Reset and base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    line-height: 1.7;
    color: #333;
    background-color: #ffffff;
    font-size: 17px;
    font-weight: 400;
}

/* Container */
.container {
    max-width: 680px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
.header {
    background: #ffffff;
    padding: 60px 0 40px 0;
    margin-bottom: 0;
    text-align: center;
}

.header .container {
    max-width: 100%;
}

.site-title {
    font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    font-size: 16px;
    font-weight: 500;
    color: #1a1a1a;
    text-decoration: none;
    letter-spacing: 0.25em;
    text-transform: uppercase;
    display: block;
    margin-bottom: 40px;
}

.nav {
    display: flex;
    gap: 40px;
    justify-content: center;
    align-items: center;
}

.nav-link {
    color: #666;
    text-decoration: none;
    font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    font-size: 14px;
    font-weight: 400;
    transition: color 0.2s ease;
    letter-spacing: 0.01em;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 1px;
    background-color: #1a1a1a;
    transition: width 0.2s ease;
}

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

.nav-link:hover {
    color: #1a1a1a;
}

/* Main content */
.main {
    background: #ffffff;
    min-height: calc(100vh - 120px);
    padding: 0;
}

/* Article */
.article {
    max-width: 680px;
    margin: 0 auto;
}

.article-header {
    margin-bottom: 48px;
    text-align: left;
}

.article-title {
    font-family: "Georgia", "Times New Roman", serif;
    font-size: 48px;
    font-weight: 700;
    line-height: 1.15;
    color: #1a1a1a;
    margin-bottom: 24px;
    letter-spacing: -0.03em;
}

.article-meta {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 32px;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    font-size: 14px;
    color: #757575;
}

.article-meta span {
    display: flex;
    align-items: center;
}

.article-meta span:not(:last-child)::after {
    content: "·";
    margin-left: 16px;
    color: #d0d0d0;
}

.article-subtitle {
    font-size: 24px;
    line-height: 1.4;
    color: #4a4a4a;
    font-weight: 400;
    font-style: italic;
    margin-bottom: 48px;
}

/* Download section */
.download-section {
    margin: 64px 0;
}

.download-card {
    background: #fafafa;
    border: 1px solid #eee;
    border-radius: 0;
    padding: 48px;
    text-align: center;
    margin-bottom: 64px;
    box-shadow: none;
}

.download-card h2 {
    font-family: "Georgia", "Times New Roman", serif;
    font-size: 24px;
    margin-bottom: 16px;
    font-weight: 600;
    color: #1a1a1a;
}

.download-card p {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    font-size: 16px;
    margin-bottom: 32px;
    color: #4a4a4a;
    line-height: 1.5;
}

.download-btn {
    display: inline-block;
    background: transparent;
    color: #1a1a1a;
    padding: 12px 28px;
    border: 1px solid #1a1a1a;
    border-radius: 0;
    text-decoration: none;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    font-weight: 400;
    font-size: 14px;
    transition: all 0.2s ease;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.download-btn:hover {
    background: #1a1a1a;
    color: #ffffff;
}

.download-btn.secondary {
    background: transparent;
    color: #1a1a1a;
    border: 1px solid #1a1a1a;
    margin-top: 16px;
}

.download-btn.secondary:hover {
    background: #1a1a1a;
    color: #ffffff;
}

/* Preview section */
.preview-section {
    margin-top: 48px;
}

.preview-title {
    font-family: "Georgia", "Times New Roman", serif;
    font-size: 32px;
    font-weight: 600;
    margin-bottom: 48px;
    color: #1a1a1a;
    border-bottom: 1px solid #e9ecef;
    padding-bottom: 16px;
}

/* Chapters */
.chapter {
    margin-bottom: 48px;
}

.chapter h3 {
    font-family: "Georgia", "Times New Roman", serif;
    font-size: 28px;
    font-weight: 600;
    margin-bottom: 32px;
    color: #1a1a1a;
    line-height: 1.25;
}

.chapter h4 {
    font-family: "Georgia", "Times New Roman", serif;
    font-size: 21px;
    font-weight: 600;
    margin: 40px 0 20px 0;
    color: #1a1a1a;
}

.chapter h5 {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    font-size: 16px;
    font-weight: 600;
    margin: 32px 0 12px 0;
    color: #1a1a1a;
}

.chapter p {
    font-size: 20px;
    line-height: 1.58;
    margin-bottom: 28px;
    color: #1a1a1a;
}

.chapter ul {
    margin: 28px 0;
    padding-left: 32px;
}

.chapter li {
    font-size: 20px;
    line-height: 1.58;
    margin-bottom: 16px;
    color: #1a1a1a;
}

/* Tip callouts */
.tip {
    background: #f8f9fa;
    border-left: 3px solid #1a1a1a;
    padding: 24px 28px;
    margin: 40px 0;
    border-radius: 0;
    font-style: normal;
}

.tip strong {
    color: #1a1a1a;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

/* Example boxes */
.example-box {
    background: #ffffff;
    border: 1px solid #e9ecef;
    border-radius: 0;
    padding: 32px;
    margin: 40px 0;
}

.example-box h5 {
    margin: 0 0 16px 0;
    font-size: 16px;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

.example-box p {
    margin: 0 0 20px 0;
    font-family: 'Monaco', 'Menlo', 'Consolas', monospace;
    background: #f8f9fa;
    padding: 16px;
    border-radius: 0;
    border: 1px solid #e9ecef;
    font-size: 15px;
    line-height: 1.4;
}

.example-box p:last-child {
    margin-bottom: 0;
}

/* Email form styles */
.email-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin: 24px 0;
    max-width: 400px;
    margin-left: auto;
    margin-right: auto;
}

.email-input {
    padding: 14px 16px;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    font-size: 16px;
    border: 1px solid #e9ecef;
    border-radius: 3px;
    background: #ffffff;
    color: #1a1a1a;
    transition: border-color 0.2s ease;
}

.email-input:focus {
    outline: none;
    border-color: #1a1a1a;
}

.disclaimer {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    font-size: 12px;
    color: #757575;
    line-height: 1.4;
    margin-top: 16px;
    text-align: center;
}

.privacy-link {
    color: #1a1a1a;
    text-decoration: underline;
}

.privacy-link:hover {
    text-decoration: none;
}

.download-success {
    text-align: center;
    padding: 32px 24px;
}

.download-success h3 {
    font-family: "Georgia", "Times New Roman", serif;
    font-size: 24px;
    margin-bottom: 16px;
    color: #1a1a1a;
}

.download-success p {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    font-size: 16px;
    color: #4a4a4a;
    margin-bottom: 24px;
}

/* Continue reading section */
.continue-reading {
    background: #f8f9fa;
    border: 1px solid #e9ecef;
    border-radius: 0;
    padding: 48px 40px;
    margin-top: 64px;
    text-align: center;
}

.continue-reading p {
    font-size: 20px;
    margin-bottom: 24px;
    color: #1a1a1a;
    line-height: 1.4;
}

.continue-reading ul {
    text-align: left;
    max-width: 480px;
    margin: 32px auto;
}

.continue-reading li {
    font-size: 18px;
    margin-bottom: 12px;
    color: #4a4a4a;
    line-height: 1.5;
}

/* Hero Section */
.hero-section {
    background: #ffffff;
    color: #2d2d2d;
    padding: 80px 0 120px 0;
    text-align: center;
    margin-bottom: 0;
}

.hero-title {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    font-size: 82px;
    font-weight: 950;
    line-height: 1.1;
    margin-bottom: 32px;
    letter-spacing: -0.03em;
    color: #1a1a1a;
}

.hero-subtitle {
    font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    font-size: 19px;
    line-height: 1.6;
    margin-bottom: 48px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    color: #666;
    font-weight: 400;
}

.cta-button {
    display: inline-block;
    background: transparent;
    color: #1a1a1a;
    padding: 12px 32px;
    border: 1px solid #1a1a1a;
    border-radius: 0;
    text-decoration: none;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    font-weight: 400;
    font-size: 14px;
    transition: all 0.2s ease;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.cta-button:hover {
    background: #1a1a1a;
    color: #ffffff;
}

/* Section styles */
.section-title {
    font-family: "Georgia", "Times New Roman", serif;
    font-size: 36px;
    font-weight: 400;
    text-align: center;
    margin-bottom: 16px;
    color: #1a1a1a;
    letter-spacing: -0.01em;
}

.section-subtitle {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    font-size: 18px;
    color: #757575;
    text-align: center;
    margin-bottom: 48px;
}

/* Quick Guide Section */
.quick-guide-section {
    padding: 100px 0;
    background: #ffffff;
    border-top: 1px solid #eee;
}

.quick-guide-section .article-title {
    font-size: 36px;
    text-align: center;
}

.quick-guide-section .article-meta {
    justify-content: center;
}

.quick-guide-section .article-subtitle {
    text-align: center;
}

/* Feature Grid */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    margin-top: 40px;
}

.feature-card {
    background: #f8f9fa;
    padding: 24px;
    border-radius: 8px;
    border: 1px solid #e9ecef;
}

.feature-card h4 {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    font-size: 18px;
    margin-bottom: 12px;
    color: #1a1a1a;
}

.feature-card p {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    font-size: 15px;
    color: #4a4a4a;
    line-height: 1.5;
    margin: 0;
}

/* Resources Section */
.resources-section {
    background: #fafafa;
    padding: 100px 0;
    border-top: 1px solid #eee;
}

.resource-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
    max-width: 1000px;
    margin: 0 auto;
}

.resource-card {
    background: #ffffff;
    padding: 40px;
    border-radius: 0;
    border: 1px solid #eee;
    position: relative;
    transition: all 0.2s ease;
}

.resource-card:hover {
    border-color: #ccc;
}

.resource-card.featured {
    border: 2px solid #2d2d2d;
}

.featured-badge {
    position: absolute;
    top: -12px;
    right: 24px;
    background: #2d2d2d;
    color: #ffffff;
    padding: 6px 16px;
    border-radius: 24px;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.8px;
}

.resource-card h3 {
    font-family: "Georgia", "Times New Roman", serif;
    font-size: 24px;
    margin-bottom: 16px;
    color: #1a1a1a;
}

.resource-description {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    font-size: 16px;
    color: #4a4a4a;
    margin-bottom: 20px;
    line-height: 1.5;
}

.resource-features {
    list-style: none;
    padding: 0;
    margin-bottom: 24px;
}

.resource-features li {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    font-size: 14px;
    color: #4a4a4a;
    margin-bottom: 8px;
    padding-left: 20px;
    position: relative;
}

.resource-features li:before {
    content: "✓";
    position: absolute;
    left: 0;
    color: #2d2d2d;
    font-weight: 600;
}

.resource-btn {
    display: inline-block;
    background: transparent;
    color: #1a1a1a;
    padding: 10px 24px;
    border: 1px solid #1a1a1a;
    border-radius: 0;
    text-decoration: none;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    font-weight: 400;
    font-size: 13px;
    transition: all 0.2s ease;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.resource-btn:hover {
    background: #1a1a1a;
    color: #ffffff;
}

.resource-btn.primary {
    background: #1a1a1a;
    color: #ffffff;
    border-color: #1a1a1a;
}

.resource-btn.primary:hover {
    background: transparent;
    color: #1a1a1a;
}

/* PM Section */
.pm-section {
    padding: 100px 0;
    background: #ffffff;
    border-top: 1px solid #eee;
}

.pm-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    max-width: 1000px;
    margin: 0 auto;
}

.pm-overview h3,
.pm-features h3 {
    font-family: "Georgia", "Times New Roman", serif;
    font-size: 24px;
    margin-bottom: 24px;
    color: #1a1a1a;
}

.chapter-list {
    background: #f8f9fa;
    padding: 24px;
    border-radius: 8px;
}

.chapter-item {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    font-size: 15px;
    color: #4a4a4a;
    margin-bottom: 12px;
    line-height: 1.5;
}

.chapter-item:last-child {
    margin-bottom: 0;
}

.feature-list {
    list-style: none;
    padding: 0;
    margin-bottom: 32px;
}

.feature-list li {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    font-size: 16px;
    color: #1a1a1a;
    margin-bottom: 12px;
    line-height: 1.5;
}

.download-options h4 {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    font-size: 18px;
    margin-bottom: 16px;
    color: #1a1a1a;
}

.format-buttons {
    display: flex;
    gap: 12px;
}

.format-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: transparent;
    color: #666;
    padding: 8px 16px;
    border: 1px solid #ddd;
    border-radius: 0;
    text-decoration: none;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    font-weight: 400;
    font-size: 13px;
    transition: all 0.2s ease;
}

.format-btn:hover {
    border-color: #1a1a1a;
    color: #1a1a1a;
}

/* Footer */
.footer {
    background: #ffffff;
    color: #666;
    padding: 60px 0;
    text-align: center;
    margin-top: 0;
    border-top: 1px solid #eee;
}

.footer p {
    color: #666;
    font-size: 14px;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    letter-spacing: 0.02em;
}

/* Privacy Page Styles */
.privacy-section {
    padding: 100px 0;
    background: #ffffff;
}

.privacy-header {
    text-align: center;
    margin-bottom: 80px;
}

.privacy-title {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    font-size: 48px;
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: 16px;
    color: #1a1a1a;
    letter-spacing: -0.02em;
}

.privacy-date {
    font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    font-size: 16px;
    color: #666;
    font-weight: 400;
}

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

.privacy-section-content {
    margin-bottom: 48px;
}

.privacy-section-content h2 {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 16px;
    color: #1a1a1a;
    letter-spacing: -0.01em;
}

.privacy-section-content p {
    font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    font-size: 17px;
    line-height: 1.6;
    color: #333;
    margin-bottom: 16px;
}

.privacy-section-content ul {
    margin: 16px 0 24px 0;
    padding-left: 24px;
}

.privacy-section-content li {
    font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    font-size: 17px;
    line-height: 1.6;
    color: #333;
    margin-bottom: 8px;
}

.privacy-section-content a {
    color: #1a1a1a;
    text-decoration: underline;
    transition: opacity 0.2s ease;
}

.privacy-section-content a:hover {
    opacity: 0.7;
}

/* About Page Styles */
.about-section {
    padding: 100px 0;
    background: #ffffff;
}

.about-header {
    text-align: center;
    margin-bottom: 80px;
}

.about-title {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    font-size: 48px;
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: 16px;
    color: #1a1a1a;
    letter-spacing: -0.02em;
}

.about-subtitle {
    font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    font-size: 20px;
    color: #666;
    font-weight: 400;
    line-height: 1.5;
}

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

.about-section-content {
    margin-bottom: 48px;
}

.about-section-content h2 {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 16px;
    color: #1a1a1a;
    letter-spacing: -0.01em;
}

.about-section-content p {
    font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    font-size: 17px;
    line-height: 1.6;
    color: #333;
    margin-bottom: 16px;
}

.about-section-content ul {
    margin: 16px 0 24px 0;
    padding-left: 24px;
}

.about-section-content li {
    font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    font-size: 17px;
    line-height: 1.6;
    color: #333;
    margin-bottom: 8px;
}

/* Contact Page Styles */
.contact-section {
    padding: 100px 0;
    background: #ffffff;
}

.contact-header {
    text-align: center;
    margin-bottom: 80px;
}

.contact-title {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    font-size: 48px;
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: 16px;
    color: #1a1a1a;
    letter-spacing: -0.02em;
}

.contact-subtitle {
    font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    font-size: 20px;
    color: #666;
    font-weight: 400;
    line-height: 1.5;
}

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

.contact-section-content {
    margin-bottom: 48px;
}

.contact-section-content h2 {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 16px;
    color: #1a1a1a;
    letter-spacing: -0.01em;
}

.contact-section-content p {
    font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    font-size: 17px;
    line-height: 1.6;
    color: #333;
    margin-bottom: 16px;
}

.contact-section-content a {
    color: #1a1a1a;
    text-decoration: underline;
    transition: opacity 0.2s ease;
}

.contact-section-content a:hover {
    opacity: 0.7;
}

/* Responsive design */
@media (max-width: 768px) {
    .container {
        padding: 0 16px;
    }
    
    .header {
        padding: 40px 0 30px 0;
    }
    
    .site-title {
        font-size: 16px;
        margin-bottom: 30px;
    }
    
    .nav {
        gap: 24px;
        flex-wrap: wrap;
    }
    
    .nav-link {
        font-size: 13px;
    }
    
    .hero-section {
        padding: 60px 0 80px 0;
    }
    
    .hero-title {
        font-size: 48px;
    }
    
    .hero-subtitle {
        font-size: 18px;
    }
    
    .privacy-section {
        padding: 60px 0;
    }
    
    .privacy-header {
        margin-bottom: 50px;
    }
    
    .privacy-title {
        font-size: 36px;
    }
    
    .about-section {
        padding: 60px 0;
    }
    
    .about-header {
        margin-bottom: 50px;
    }
    
    .about-title {
        font-size: 36px;
    }
    
    .contact-section {
        padding: 60px 0;
    }
    
    .contact-header {
        margin-bottom: 50px;
    }
    
    .contact-title {
        font-size: 36px;
    }
    
    .section-title {
        font-size: 32px;
    }
    
    .feature-grid {
        grid-template-columns: 1fr;
    }
    
    .resource-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    
    .pm-content {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    
    .format-buttons {
        flex-wrap: wrap;
    }
    
    .article-title {
        font-size: 32px;
    }
    
    .article-meta {
        flex-direction: column;
        gap: 8px;
        align-items: flex-start;
    }
    
    .article-meta span:not(:last-child)::after {
        display: none;
    }
    
    .download-card {
        padding: 24px 16px;
    }
    
    .download-card h2 {
        font-size: 24px;
    }
    
    .preview-title {
        font-size: 24px;
    }
    
    .chapter h3 {
        font-size: 24px;
    }
    
    .chapter h4 {
        font-size: 18px;
    }
    
    .chapter p,
    .chapter li {
        font-size: 16px;
    }
    
    .continue-reading {
        padding: 24px 16px;
    }
    
    .continue-reading ul {
        margin: 20px 0;
    }
    
    .email-form {
        max-width: 100%;
    }
    
    .email-input {
        font-size: 16px; /* Prevents zoom on iOS */
    }
}

@media (max-width: 480px) {
    .main {
        padding: 24px 0;
    }
    
    .hero-section {
        padding: 40px 0;
    }
    
    .hero-title {
        font-size: 36px;
    }
    
    .site-title {
        font-size: 14px;
        letter-spacing: 0.2em;
    }
    
    .privacy-title {
        font-size: 28px;
    }
    
    .about-title {
        font-size: 28px;
    }
    
    .contact-title {
        font-size: 28px;
    }
    
    .hero-subtitle {
        font-size: 16px;
    }
    
    .cta-button {
        padding: 12px 24px;
        font-size: 14px;
    }
    
    .section-title {
        font-size: 24px;
    }
    
    .section-subtitle {
        font-size: 16px;
    }
    
    .resource-card {
        padding: 24px;
    }
    
    .resource-card h3 {
        font-size: 20px;
    }
    
    .resource-description {
        font-size: 14px;
    }
    
    .article-header {
        margin-bottom: 32px;
    }
    
    .article-title {
        font-size: 28px;
    }
    
    .article-subtitle {
        font-size: 18px;
    }
    
    .download-card h2 {
        font-size: 20px;
    }
    
    .download-btn {
        padding: 10px 20px;
        font-size: 14px;
    }
    
    .preview-title {
        font-size: 20px;
    }
    
    .chapter h3 {
        font-size: 20px;
    }
}