body{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;margin:0}code{font-family:source-code-pro,Menlo,Monaco,Consolas,Courier New,monospace}.App{text-align:center}.App-logo{height:40vmin;pointer-events:none}@media (prefers-reduced-motion:no-preference){.App-logo{animation:App-logo-spin 20s linear infinite}}.App-header{align-items:center;background-color:#282c34;color:#fff;display:flex;flex-direction:column;font-size:calc(10px + 2vmin);justify-content:center;padding:1.5rem 0}.App-link{color:#61dafb}@keyframes App-logo-spin{0%{transform:rotate(0deg)}to{transform:rotate(1turn)}}.header-container{margin:0 auto}.book-page,.header-container{max-width:1200px;padding:0 20px}.book-page{margin:2rem auto}.book-content{align-items:center;display:flex;gap:40px}@media (max-width:768px){.book-content{flex-direction:column}}.book-image{flex:1 1;max-width:350px}.book-image img{box-shadow:0 10px 20px #00000030,0 6px 6px #0000003b;width:100%}.placeholder-cover{background-color:#f0f0f0;height:300px}.book-details{flex:2 1;text-align:left}.book-details h2{color:#2c3e50;font-size:2.2rem;margin-top:0}.book-details p{color:#34495e;font-size:1.2rem;line-height:1.6}.cta-button{background-color:#3498db;border-radius:4px;color:#fff;display:inline-block;font-size:1.1rem;font-weight:700;padding:12px 30px;text-decoration:none;transition:background-color .3s}.cta-button:hover{background-color:#2980b9}nav{margin:20px 0}nav a{color:#fff;margin:0 10px}.book-description,.book-highlights{margin-bottom:2rem}.book-highlights ul{padding-left:1.5rem}.book-highlights li{margin-bottom:.8rem}.book-section{margin:3rem auto;max-width:1200px;padding:0 20px}.price-info{display:flex;gap:2rem;margin-bottom:1.5rem}.price-item{display:flex;flex-direction:column}.price-value{color:#2c3e50;font-size:1.5rem;font-weight:700}.price-label{color:#7f8c8d;font-size:.9rem}blockquote{border-left:4px solid #3498db;color:#34495e;font-style:italic;margin-left:0;padding-left:1rem}.placeholder-cover{height:500px}.placeholder-cover h3{font-size:2rem;margin-bottom:1rem}.book-structure{grid-gap:2rem;display:grid;gap:2rem;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));margin-top:2rem}.structure-item h4{border-bottom:2px solid #3498db;color:#2c3e50;margin-bottom:1rem;margin-top:0;padding-bottom:.5rem}.audience-grid{grid-gap:2rem;display:grid;gap:2rem;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));margin-top:2rem}.audience-item{background-color:#f8f9fa;border-radius:8px;box-shadow:0 4px 6px #0000001a;padding:1.5rem}.audience-item h4{color:#2c3e50;margin-bottom:1rem;margin-top:0}.author-section{background-color:#f8f9fa;border-radius:8px;box-shadow:0 4px 6px #0000001a;padding:2rem}.newsletter-section{background-color:#2c3e50;border-radius:8px;color:#fff;margin-top:3rem;padding:3rem 2rem;text-align:center}.newsletter-form{display:flex;gap:1rem;margin:2rem auto 0;max-width:500px}.newsletter-form input{border:none;border-radius:4px;flex:1 1;font-size:1rem;padding:.8rem 1rem}@media (max-width:768px){.newsletter-form{flex-direction:column}.audience-grid,.book-structure{grid-template-columns:1fr}}.placeholder-cover{align-items:center;background-color:#1a365d;border:1px solid #ddd;box-shadow:0 10px 20px #00000030,0 6px 6px #0000003b;color:#fff;display:flex;flex-direction:column;height:auto;justify-content:center;padding:15px;position:relative}.module-image{height:auto;max-height:500px;max-width:346px;object-fit:contain;width:100%}.cover-coming-soon{background-color:#1a365dcc;bottom:0;left:0;padding:10px;position:absolute;right:0;text-align:center}.cover-coming-soon p{font-weight:700;letter-spacing:1px;margin:0}.part-description{border-bottom:2px solid #3498db;margin-bottom:0;padding-bottom:1rem}.chapter-list{margin-top:1rem;padding-top:.5rem}.chapter-item{font-size:.95rem;line-height:1.4;margin-bottom:.5rem;text-align:left}.chapter-number{color:#3498db;display:inline-block;font-weight:600;margin-right:.5rem;min-width:1.5rem}.structure-item{background-color:#f8f9fa;border-radius:8px;box-shadow:0 4px 6px #0000001a;display:flex;flex-direction:column;padding:1.5rem}@media (max-width:992px){.book-structure{grid-template-columns:repeat(2,1fr)}}@media (max-width:768px){.book-structure{grid-template-columns:1fr}}
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