:root{--primary-blue:#2C5F8D;--accent-orange:#FF8C42;--bg-dark:#1a1a2e;--bg-card:#21213a;--text-light:#f0f0f0;--text-secondary:#b0b0c3}.text-accent{color:var(--accent-orange)}.text-secondary{color:var(--text-secondary)}.text-light{color:var(--text-light)}.text-center{text-align:center}.link-accent{color:var(--accent-orange);text-decoration:none;font-weight:600}.stack-m-30{margin:30px 0}.mt-20{margin-top:20px}.mt-30{margin-top:30px}.mt-40{margin-top:40px}.mt-15{margin-top:15px}.mb-15{margin-bottom:15px}.mb-20{margin-bottom:20px}.mb-25{margin-bottom:25px}.mb-40{margin-bottom:40px}.mx-15{margin:0 15px}.my-20{margin:20px 0}.py-20{padding:20px 0}.fs-09{font-size:.9rem}.fs-095{font-size:.95rem}.fs-11{font-size:1.1rem}.fs-12{font-size:1.2rem}.fs-13{font-size:1.3rem}.fs-18{font-size:1.8rem}.fs-25{font-size:2.5rem}.fs-15{font-size:1.5rem}.maxw-800{max-width:800px;margin:0 auto}.maxw-700{max-width:700px;margin:0 auto}.maxw-600{max-width:600px;margin:0 auto}.maxw-500{max-width:500px;margin:20px auto;text-align:left}.chip-accent{display:inline-block;background:rgba(255,140,66,.2);border:2px solid var(--accent-orange);padding:8px 20px;border-radius:30px;margin-bottom:20px;font-weight:600;color:var(--accent-orange)}.cover-placeholder{background:var(--bg-card);max-width:350px;height:500px;margin:0 auto 30px;border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:4rem}.list-inside-secondary{list-style-position:inside;color:var(--text-secondary);font-size:1.05rem}.list-plain{list-style:none;font-size:1.05rem;line-height:2;padding-left:0;color:var(--text-secondary)}.list-plain-secondary{list-style:none;font-size:1.05rem;line-height:2;color:var(--text-secondary);padding-left:0}.text-success{color:#4caf50}.text-danger{color:#f44336}.btn-large{font-size:1.1rem;padding:15px 50px}.section-divider{margin-top:30px;padding-top:30px;border-top:1px solid rgba(255,255,255,.2)}.benefits-narrow{text-align:left;max-width:400px;margin:0 auto}.avatar-small{width:150px;height:150px;border-radius:50%;margin-bottom:20px;padding:10px;-o-object-fit:contain;object-fit:contain}.footer-simple{text-align:center;padding:40px 0;border-top:1px solid rgba(255,255,255,.1);color:var(--text-secondary)}.book-hero{padding:60px 0;text-align:center}.book-cover{max-width:350px;box-shadow:0 20px 60px rgba(0,0,0,.5);border-radius:8px;margin:0 auto 30px}.hero-title{font-size:clamp(2rem, 5vw, 3.5rem);margin-bottom:20px;color:var(--primary-blue);line-height:1.2}.hero-subtitle{font-size:clamp(1.1rem, 3vw, 1.4rem);color:var(--text-secondary);margin-bottom:30px;max-width:800px;margin-left:auto;margin-right:auto}.social-proof{display:flex;gap:20px;justify-content:center;flex-wrap:wrap;margin:30px 0}.proof-item{background:var(--bg-card);padding:15px 25px;border-radius:8px;font-weight:700;color:var(--accent-orange)}.cta-buttons{display:flex;gap:15px;justify-content:center;flex-wrap:wrap;margin:40px 0}.btn{padding:15px 40px;border-radius:8px;text-decoration:none;font-weight:600;transition:.3s;display:inline-block;font-family:-apple-system,sans-serif;min-width:220px;text-align:center}.btn-primary{background:var(--accent-orange);color:#fff}.btn-primary:hover{background:#ff9f5e;transform:translateY(-2px);box-shadow:0 10px 30px rgba(255,140,66,.4)}.btn-secondary{background:0 0;border:2px solid var(--accent-orange);color:var(--accent-orange)}.btn-secondary:hover{background:rgba(255,140,66,.1)}.section{padding:60px 0;border-bottom:1px solid rgba(255,255,255,.1)}.section-title{font-size:clamp(1.8rem, 4vw, 2.5rem);margin-bottom:30px;text-align:center;color:var(--primary-blue)}.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:30px;margin-top:40px}.feature-card{background:var(--bg-card);padding:30px;border-radius:12px;border-left:4px solid var(--accent-orange)}.feature-icon{font-size:3rem;margin-bottom:15px}.feature-title{font-size:1.4rem;margin-bottom:10px;color:var(--accent-orange)}.toc-list{background:var(--bg-card);padding:40px;border-radius:12px;margin:40px 0}.toc-list h3{color:var(--accent-orange);margin-top:25px;margin-bottom:10px}.toc-list ul{list-style-position:inside;color:var(--text-secondary)}.buy-section{background:linear-gradient(135deg,var(--primary-blue) 0,#1a3a5c 100%);padding:60px 40px;border-radius:16px;margin:60px 0;text-align:center}.buy-options{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:30px;margin:40px 0}.buy-option{background:rgba(255,255,255,.1);padding:30px;border-radius:12px;backdrop-filter:blur(10px)}.language-selector{display:flex;flex-direction:column;gap:10px;margin:20px 0}.price{font-size:1.5rem;font-weight:700;color:var(--accent-orange);margin:15px 0}.benefits{text-align:left;list-style:none;margin-top:15px}.benefits li{padding:5px 0}@media (max-width:768px){.book-hero{padding:40px 0}.cta-buttons{flex-direction:column}.btn{width:100%}}