html{scroll-behavior:smooth}body{font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;line-height:1.6;color:#333;overflow-x:hidden}a{color:inherit;text-decoration:none}img{max-width:100%;height:auto}button:focus,a:focus{outline:2px solid #e74c3c;outline-offset:2px}@keyframes fadeIn{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.fade-in{animation:fadeIn .6s ease-out}.book-card{background:#fff;border-radius:var(--border-radius);box-shadow:var(--shadow);padding:1.5rem;transition:var(--transition);display:flex;gap:1rem}.book-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg)}.book-cover-small{position:relative;width:80px;height:120px;flex-shrink:0}.book-front-small{width:100%;height:100%;background:var(--book-gradient);border-radius:4px;display:flex;flex-direction:column;justify-content:space-between;padding:.5rem;color:#fff;text-align:center}.book-front-small h4{font-size:.7rem;font-weight:700;line-height:1.1;margin:0}.book-author-small{font-size:.5rem;opacity:.9}.book-info{flex:1;display:flex;flex-direction:column;gap:.5rem}.book-info h3{margin:0;color:var(--primary-color);font-size:1.2rem}.book-info p{margin:0;color:var(--text-light);font-size:.9rem;line-height:1.4}.book-prices{display:flex;gap:1rem;margin:.5rem 0}.price{font-size:.9rem;font-weight:600;color:var(--secondary-color)}.book-actions{display:flex;gap:.5rem;margin-top:auto}.btn-small{padding:.5rem 1rem;font-size:.8rem}.hero .book-cover,.hero .book-front{background:var(--book-gradient)}.hero .book-front h3{font-size:2rem;font-weight:700;line-height:1.2;margin-top:2rem}@media (max-width: 768px){.book-card{flex-direction:column;align-items:center;text-align:center}.book-cover-small{width:100px;height:140px}.book-actions{justify-content:center}}.books-section{background:var(--bg-light);padding:80px 0}.books-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(350px,1fr));gap:2rem;margin-bottom:3rem}.coming-soon{display:flex;justify-content:center}.coming-soon-card{background:#fff;border-radius:var(--border-radius);padding:3rem;text-align:center;box-shadow:var(--shadow);max-width:400px;border:2px dashed var(--accent-color)}.coming-soon-icon{font-size:3rem;margin-bottom:1rem}.coming-soon-card h3{color:var(--primary-color);margin-bottom:1rem}.coming-soon-card p{color:var(--text-light);margin-bottom:2rem}@media (max-width: 768px){.books-grid{grid-template-columns:1fr}.coming-soon-card{padding:2rem;margin:0 1rem}}.book-carousel-3d{padding:80px 0;background:linear-gradient(135deg,#000,#000);color:#fff;position:relative}.book-carousel-3d .container{max-width:1200px;margin:0 auto;padding:0 20px}.carousel-content{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center;min-height:650px}.carousel-3d-container{position:relative;height:650px;background:#ffffff1a;border-radius:20px;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid rgba(255,255,255,.2);overflow:visible;padding:20px;transition:all .3s ease}.carousel-3d-container:hover{transform:translateY(-5px);box-shadow:0 15px 35px #0003}.carousel-controls{position:absolute;top:50%;transform:translateY(-50%);width:100%;display:flex;justify-content:space-between;padding:0 20px;z-index:10;pointer-events:none}.carousel-btn{width:50px;height:50px;border-radius:50%;background:#ffffffe6;border:none;font-size:24px;font-weight:700;color:#333;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .3s ease;box-shadow:0 4px 15px #0003;pointer-events:auto}.carousel-btn:hover{background:#fff;transform:scale(1.1);box-shadow:0 6px 20px #0000004d}.carousel-btn:active{transform:scale(.95)}.book-rotation-controls{position:absolute;bottom:20px;left:50%;transform:translate(-50%);display:flex;align-items:center;gap:15px;background:#ffffffe6;padding:10px 20px;border-radius:25px;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);box-shadow:0 4px 15px #0003}.rotation-btn{width:40px;height:40px;border-radius:50%;background:linear-gradient(45deg,#667eea,#764ba2);border:none;color:#fff;font-size:20px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .3s ease;box-shadow:0 2px 8px #0003}.rotation-btn:hover{transform:scale(1.1);box-shadow:0 4px 12px #0000004d}.rotation-btn:active{transform:scale(.95)}.rotation-label{font-size:.9rem;color:#333;font-weight:600;text-transform:uppercase;letter-spacing:1px}.book-description{padding:20px 0;transition:all .3s ease}.book-info{transition:opacity .3s ease,transform .3s ease}.book-info h2{font-size:2.5rem;margin-bottom:10px;color:#fff;text-shadow:2px 2px 4px rgba(0,0,0,.3);transition:all .3s ease}.book-author{font-size:1.2rem;color:#ffffffe6;margin-bottom:20px;font-style:italic}.interaction-hint{margin-bottom:20px;padding:10px 15px;background:#ffffff1a;border-radius:20px;-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px);border:1px solid rgba(255,255,255,.2)}.interaction-hint p{margin:0;font-size:.9rem;color:#fffc;text-align:center}.book-summary{margin-bottom:30px;line-height:1.6}.book-summary p{margin-bottom:15px;color:#ffffffe6}.book-highlights{margin-bottom:40px}.book-highlights h4{color:#fff;margin-bottom:15px;font-size:1.1rem}.book-highlights li{position:relative;padding-left:20px;margin-bottom:8px;color:#ffffffe6}.book-actions{display:flex;flex-direction:column;gap:20px}.book-prices{display:flex;gap:20px;align-items:center}.price{background:#fff3;padding:8px 16px;border-radius:20px;font-weight:600;color:#fff;-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px);border:1px solid rgba(255,255,255,.3)}.book-buttons{display:flex;gap:15px}.btn-primary,.btn-secondary{padding:12px 30px;border-radius:30px;text-decoration:none;font-weight:600;transition:all .3s ease;text-align:center;border:2px solid transparent}.btn-primary{background:linear-gradient(45deg,#ff6b35,#f7931e);color:#fff;box-shadow:0 4px 15px #ff6b3566}.btn-primary:hover{background:linear-gradient(45deg,#f7931e,#ff6b35);transform:translateY(-2px);box-shadow:0 6px 20px #ff6b3599}.btn-secondary{background:transparent;color:#fff;border:2px solid rgba(255,255,255,.8)}.btn-secondary:hover{background:#ffffff1a;border-color:#fff;transform:translateY(-2px)}.carousel-indicators{display:flex;justify-content:center;gap:10px;margin-top:30px}.indicator.active,.indicator:hover{background:#fff;border-color:#fff;transform:scale(1.2)}.loading-message{display:flex;align-items:center;justify-content:center;height:100%;font-size:18px;color:#fffc;font-weight:500}.loading-message:after{content:"";display:inline-block;width:20px;height:20px;margin-left:10px;border:2px solid rgba(255,255,255,.3);border-top:2px solid white;border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}@media (max-width: 768px){.carousel-content{grid-template-columns:1fr;gap:40px}.carousel-3d-container{height:500px;padding:30px}.book-info h2{font-size:2rem}.carousel-controls{padding:0 10px}.carousel-btn{width:40px;height:40px;font-size:20px}.book-rotation-controls{bottom:15px;padding:8px 15px;gap:10px}.rotation-btn{width:35px;height:35px;font-size:16px}.rotation-label{font-size:.8rem}.book-buttons{flex-direction:column}.book-prices{flex-direction:column;gap:10px;align-items:flex-start}}@media (max-width: 480px){.book-carousel-3d{padding:40px 0}.carousel-3d-container{height:400px;padding:20px}.book-info h2{font-size:1.8rem}.book-rotation-controls{bottom:10px;padding:6px 12px;gap:8px}.rotation-btn{width:30px;height:30px;font-size:14px}.rotation-label{font-size:.7rem}}*{margin:0;padding:0;box-sizing:border-box}:root{--primary-color: #2c3e50;--secondary-color: #e74c3c;--accent-color: #f39c12;--text-color: #333;--text-light: #666;--bg-light: #f8f9fa;--bg-white: #ffffff;--shadow: 0 4px 6px rgba(0, 0, 0, .1);--shadow-lg: 0 10px 25px rgba(0, 0, 0, .15);--border-radius: 8px;--transition: all .3s ease}body{font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;line-height:1.6;color:var(--text-color)}.container{max-width:1200px;margin:0 auto;padding:0 20px}.header{background:#fffffff2;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);box-shadow:0 2px 20px #0000001a;position:fixed;top:0;left:0;right:0;z-index:1000;transition:var(--transition)}.nav{display:flex;justify-content:space-between;align-items:center;padding:1rem 2rem;max-width:1200px;margin:0 auto}.nav-brand{font-size:1.5rem;font-weight:700;color:var(--primary-color)}.nav-links{display:flex;gap:2rem;align-items:center}.nav-links a{text-decoration:none;color:var(--text-color);font-weight:500;transition:var(--transition)}.nav-links a:hover{color:var(--secondary-color)}.nav-links button{background:none;border:none;color:var(--text-color);font-weight:500;font-size:1.1rem;padding:.5rem 2rem;border-radius:25px;cursor:pointer;transition:var(--transition);margin:0 .5rem;box-shadow:none;outline:none}.nav-links button.btn-primary{background:var(--secondary-color);color:#fff;box-shadow:0 4px 15px #e74c3c26;border:none}.nav-links button:not(.btn-primary){border:none;background:none;color:var(--primary-color);font-weight:600;box-shadow:none}.nav-links button:focus{outline:2px solid var(--secondary-color);outline-offset:2px}.btn-primary,.btn-secondary{display:inline-block;padding:.75rem 1.5rem;border-radius:var(--border-radius);text-decoration:none;font-weight:600;text-align:center;transition:var(--transition);border:none;cursor:pointer}.btn-primary{background:var(--secondary-color);color:#fff}.btn-primary:hover{background:#c0392b;transform:translateY(-2px)}.btn-secondary{background:transparent;color:var(--primary-color);border:2px solid var(--primary-color)}.btn-secondary:hover{background:var(--primary-color);color:#fff}.btn-large{padding:1rem 2rem;font-size:1.1rem}.hero{background:linear-gradient(135deg,var(--bg-light) 0%,#e8f5e8 100%);padding:120px 0 80px;min-height:100vh;display:flex;align-items:center}.hero-content{display:grid;grid-template-columns:1fr 1fr;gap:4rem;align-items:center;max-width:1200px;margin:0 auto;padding:0 2rem}.hero-title{font-size:3.5rem;font-weight:700;color:var(--primary-color);margin-bottom:1rem;line-height:1.2}.hero-subtitle{font-size:1.25rem;color:var(--text-light);margin-bottom:2rem;line-height:1.6}.hero-buttons{display:flex;gap:1rem;flex-wrap:wrap}.hero-image{display:flex;justify-content:center;align-items:center}.book-cover{position:relative;width:300px;height:400px;transform:rotateY(-15deg) rotateX(5deg);transform-style:preserve-3d;transition:var(--transition);cursor:pointer}.book-cover:hover{transform:rotateY(-10deg) rotateX(2deg) scale(1.05)}.book-spine{position:absolute;left:-20px;top:0;width:20px;height:100%;background:linear-gradient(to bottom,#000,#000);transform:rotateY(-90deg);transform-origin:left}.book-front{width:100%;height:100%;background:linear-gradient(135deg,#2c3e50,#3498db);border-radius:4px;box-shadow:var(--shadow-lg);display:flex;flex-direction:column;justify-content:space-between;padding:2rem;color:#fff;text-align:center}.book-front h3{font-size:2rem;font-weight:700;line-height:1.2;margin-top:2rem}.book-author{font-size:1rem;opacity:.9;margin-bottom:2rem}.author-section{padding:100px 0}.about{background:var(--bg-white)}.author{background:var(--bg-light)}.testimonials{background:var(--bg-light);padding:80px 0}.cta{background:linear-gradient(135deg,var(--primary-color) 0%,#34495e 100%);color:#fff}section h2{font-size:2.5rem;text-align:center;margin-bottom:3rem;color:var(--primary-color)}.cta h2{color:#fff}.about-content{max-width:800px;margin:0 auto}.about-text p{font-size:1.1rem;margin-bottom:1.5rem;color:var(--text-light)}.book-features{list-style:none;margin-top:2rem}.book-features li{padding:.5rem 0;font-size:1.1rem;color:var(--text-color)}.author-content{display:grid;grid-template-columns:300px 1fr;gap:4rem;align-items:center;max-width:1000px;margin:0 auto}.author-photo{width:250px;height:250px;border-radius:50%;background:linear-gradient(135deg,#bdc3c7,#95a5a6);margin:0 auto;display:flex;align-items:center;justify-content:center;font-size:4rem;color:#fff}.author-photo:after{content:"👤"}.author-text h3{font-size:1.8rem;margin-bottom:1rem;color:var(--primary-color)}.author-text p{font-size:1.1rem;color:var(--text-light);margin-bottom:1.5rem}.testimonials-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:2rem;max-width:1000px;margin:0 auto}.testimonial{background:var(--bg-light);padding:2rem;border-radius:var(--border-radius);box-shadow:var(--shadow);text-align:center}.testimonial p{font-size:1.1rem;font-style:italic;margin-bottom:1rem;color:var(--text-color)}.testimonial cite{font-weight:600;color:var(--primary-color)}.featured-book-cta{margin-bottom:2rem}.featured-book-cta h3{font-size:1.8rem;margin-bottom:1rem;color:#fff;text-align:center}.cta-buttons{display:flex;gap:1rem;justify-content:center;margin:2rem 0;flex-wrap:wrap}.cta .btn-secondary{border-color:#fff;color:#fff}.cta .btn-secondary:hover{background:#fff;color:var(--primary-color)}.payment-methods{text-align:center;margin-top:2rem;opacity:.9}.payment-icons{font-size:1.1rem}.footer{background:var(--primary-color);color:#fff;padding:2rem 0;text-align:center}.footer .container{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:1rem}.social-links{display:flex;gap:1rem}.social-links a{color:#fff;text-decoration:none;opacity:.8;transition:var(--transition)}.social-links a:hover{opacity:1}.footer-content{display:grid;grid-template-columns:1fr 1fr;gap:3rem;margin-bottom:2rem}.footer-brand h3{color:#fff;margin-bottom:.5rem}.footer-brand p{opacity:.8;margin:0}.footer-links{display:grid;grid-template-columns:1fr 1fr;gap:2rem}.footer-section h4{color:#fff;margin-bottom:1rem;font-size:1.1rem}.footer-section a{display:block;color:#fff;opacity:.8;margin-bottom:.5rem;transition:var(--transition)}.footer-section a:hover{opacity:1;color:var(--accent-color)}.footer-bottom{border-top:1px solid rgba(255,255,255,.2);padding-top:2rem;text-align:center}.footer-bottom p{margin:0;opacity:.8}.footer-centered{text-align:center!important}.footer-centered p{text-align:center!important;margin:0 auto!important}.contact-info{margin-top:2rem;text-align:center}.contact-info a{color:#fff;text-decoration:underline}.contact-info a:hover{color:var(--accent-color)}.author-contact{margin-top:1.5rem;padding-top:1.5rem;border-top:1px solid #eee}.author-contact p{margin:0;font-size:1rem}@media (max-width: 768px){.nav{flex-direction:column;gap:1rem;padding:1rem}.nav-links{gap:1rem}.hero{padding:100px 0 60px}.hero-content{grid-template-columns:1fr;gap:2rem;text-align:center}.hero-title{font-size:2.5rem}.hero-buttons{justify-content:center}.book-cover{width:200px;height:280px;transform:none}.book-cover:hover{transform:scale(1.05)}.author-content{grid-template-columns:1fr;gap:2rem;text-align:center}.testimonials-grid{grid-template-columns:1fr}.cta-buttons{flex-direction:column;align-items:center}.footer .container{flex-direction:column;text-align:center}section h2{font-size:2rem}}@media (max-width: 480px){.hero-title{font-size:2rem}.hero-subtitle{font-size:1.1rem}.nav-links{flex-direction:column;gap:.5rem}.book-cover{width:160px;height:220px}.book-front h3{font-size:1.5rem}.btn-large{padding:.75rem 1.5rem;font-size:1rem}}.author-section{min-height:100vh;background:linear-gradient(135deg,#1e3c72,#2a5298);color:#fff;display:flex;align-items:center;position:relative;overflow:hidden;padding:80px 0}.author-section:before{content:"";position:absolute;top:0;left:0;right:0;bottom:0;background-image:radial-gradient(circle at 20% 50%,rgba(255,255,255,.1) 1px,transparent 1px),radial-gradient(circle at 80% 20%,rgba(255,255,255,.1) 1px,transparent 1px),radial-gradient(circle at 40% 80%,rgba(255,255,255,.1) 1px,transparent 1px);background-size:100px 100px,150px 150px,200px 200px;animation:floating 20s ease-in-out infinite}@keyframes floating{0%,to{transform:translateY(0)}50%{transform:translateY(-20px)}}.author-section .container{max-width:1200px;margin:0 auto;padding:80px 20px;position:relative;z-index:1}.author-content{display:grid;grid-template-columns:1fr 2fr;gap:60px;align-items:center;margin-bottom:80px}.author-image{position:relative;display:flex;justify-content:center}.author-image img{width:300px;height:300px;border-radius:50%;object-fit:cover;border:5px solid rgba(255,255,255,.3);box-shadow:0 20px 40px #0000004d;transition:transform .3s ease}.author-image img:hover{transform:scale(1.05)}.author-placeholder{display:none;width:300px;height:300px;border-radius:50%;background:#ffffff1a;border:5px solid rgba(255,255,255,.3);flex-direction:column;align-items:center;justify-content:center;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.placeholder-icon{font-size:4rem;margin-bottom:10px}.author-info h1{font-size:3.5rem;margin-bottom:20px;background:linear-gradient(45deg,#fff,#f0f0f0);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;text-shadow:2px 2px 4px rgba(0,0,0,.3)}.author-tagline{font-size:1.3rem;color:#ffffffe6;margin-bottom:30px;font-style:italic;line-height:1.4}.author-bio{margin-bottom:40px;line-height:1.7;font:100 1.1rem Arial,sans-serif}.author-bio p{margin-bottom:20px;color:#ffffffe6;text-align:justify}.author-stats{display:flex;gap:40px;margin-bottom:40px;padding:30px 0;border-top:1px solid rgba(255,255,255,.2);border-bottom:1px solid rgba(255,255,255,.2)}.stat{text-align:center}.stat-number{display:block;font-size:2.5rem;font-weight:700;color:#fff;margin-bottom:5px}.stat-label{font-size:.9rem;color:#fffc;text-transform:uppercase;letter-spacing:1px}.author-social h4{margin-bottom:20px;color:#fff}.social-links{display:flex;gap:20px}.social-link{display:flex;align-items:center;gap:8px;padding:10px 20px;background:#ffffff1a;border-radius:25px;text-decoration:none;color:#fff;transition:all .3s ease;-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px);border:1px solid rgba(255,255,255,.2)}.social-link:hover{background:#fff3;transform:translateY(-2px);box-shadow:0 5px 15px #0003}.social-link span{font-size:1.2rem}.scroll-indicator{position:absolute;bottom:30px;left:50%;transform:translate(-50%);text-align:center;color:#fffc}.scroll-text{font-size:.9rem;margin-bottom:10px;text-transform:uppercase;letter-spacing:2px}.scroll-arrow{font-size:1.5rem;animation:bounce 2s infinite}@keyframes bounce{0%,20%,50%,80%,to{transform:translateY(0)}40%{transform:translateY(-10px)}60%{transform:translateY(-5px)}}@media (max-width: 768px){.author-content{grid-template-columns:1fr;gap:4rem;text-align:center}.author-image img,.author-placeholder{width:250px;height:250px}.author-info h1{font-size:2.5rem}.author-tagline{font-size:1.1rem}.author-stats{justify-content:center;gap:30px}.social-links{justify-content:center;flex-wrap:wrap}}@media (max-width: 480px){.author-section .container{padding:40px 15px}.author-image img,.author-placeholder{width:200px;height:200px}.author-info h1{font-size:2rem}.author-stats{gap:20px}.stat-number{font-size:2rem}.social-links{flex-direction:column;align-items:center}}.book-carousel-3d-simple{background:linear-gradient(135deg,#667eea,#764ba2);padding:80px 0;min-height:100vh;display:flex;align-items:center}.book-carousel-3d-simple .container{max-width:1200px;margin:0 auto;padding:0 20px}.carousel-content{display:grid;grid-template-columns:1fr 1fr;gap:4rem;align-items:center}.carousel-3d-container{position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;perspective:1000px;height:460px}.book-scene{position:relative;width:215px;height:360px;transform-style:preserve-3d;margin:50px 0}.book-3d{position:relative;width:100%;height:100%;transform-style:preserve-3d;transition:transform .8s cubic-bezier(.4,0,.2,1);cursor:pointer;transform:rotateY(-15deg) rotateX(5deg)}.book-3d:hover{transform:rotateY(-15deg) rotateX(5deg) scale(1.05)}.book-3d.flipped{transform:rotateY(180deg) rotateX(5deg)}.book-3d.flipped:hover{transform:rotateY(180deg) rotateX(5deg) scale(1.05)}.book-face{position:absolute;width:100%;height:100%;box-shadow:0 10px 30px #0000004d;overflow:hidden;backface-visibility:hidden;background:transparent!important;padding:0!important;margin:0!important;border-radius:0!important}.book-face img{width:105%!important;height:100%!important;object-fit:contain!important;object-position:center!important;display:block!important;border-radius:0!important;background:transparent!important}.book-fallback{width:100%;height:100%;display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center;color:#fff;padding:2rem}.book-fallback h3{font-size:1.4rem;margin-bottom:.8rem;font-weight:700}.book-fallback p{font-size:.9rem;opacity:.9}.book-front{transform:translateZ(15px);z-index:2}.book-back{width:215px;height:340px;transform:rotateY(180deg) translateZ(15px);z-index:1}.book-spine{position:absolute;left:0;width:15px;height:100%;transform:rotateY(-105deg) translate(-12px);display:flex;align-items:center;justify-content:center;z-index:3;color:#fff!important;background-color:#3d2c3b!important;box-shadow:none;border-radius:0}.spine-text{writing-mode:vertical-rl;text-orientation:mixed;color:#fff;font-size:.9rem;font-weight:700;text-align:center;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-height:90%}.flip-instruction{position:absolute;bottom:-40px;left:50%;transform:translate(-50%);text-align:center}.flip-instruction p{color:#fffc;font-size:.9rem;margin:0;animation:pulse 2s infinite}@keyframes pulse{0%,to{opacity:.6}50%{opacity:1}}.book-description{color:#fff;padding:2rem;background:#ffffff1a;border-radius:15px;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid rgba(255,255,255,.2)}.book-info h2{font-size:2.5rem;margin-bottom:.5rem;color:#fff;text-shadow:2px 2px 4px rgba(0,0,0,.3)}.book-author{font-size:1.2rem;color:#ffffffe6;margin-bottom:2rem;font-style:italic}.book-summary{margin-bottom:2rem;font-size:5.45rem;line-height:2.1}.book-summary p{margin-bottom:1rem;font-size:1.05rem;color:#ffffffe6}.book-highlights{margin-bottom:2rem}.book-highlights h4{color:#fff;margin-bottom:1rem;font-size:1.2rem}.book-highlights ul{list-style:none;padding:0}.book-highlights li{color:#ffffffe6;margin-bottom:.5rem;padding-left:1.5rem;position:relative}.book-highlights li:before{content:"✓";position:absolute;left:0;color:#4caf50;font-weight:700}.book-actions{display:flex;flex-direction:column;gap:1.5rem}.book-prices{display:flex;gap:1rem;flex-wrap:wrap}.price{background:#fff3;padding:.5rem 1rem;border-radius:25px;color:#fff;font-weight:700;border:1px solid rgba(255,255,255,.3)}.book-buttons{display:flex;gap:1rem;flex-wrap:wrap}.btn-primary,.btn-secondary{padding:.8rem 2rem;border-radius:25px;text-decoration:none;font-weight:700;transition:all .3s ease;text-align:center;min-width:150px}.btn-primary{background:#e74c3c;color:#fff;border:2px solid #e74c3c}.btn-primary:hover{background:#c0392b;border-color:#c0392b;transform:translateY(-2px);box-shadow:0 5px 15px #e74c3c66}.btn-secondary{background:transparent;color:#fff;border:2px solid white}.btn-secondary:hover{background:#fff;color:#333;transform:translateY(-2px);box-shadow:0 5px 15px #ffffff4d}.carousel-indicators{display:flex;justify-content:center;gap:.5rem;margin-top:3rem}.indicator{width:12px;height:12px;border-radius:50%;border:2px solid rgba(255,255,255,.5);background:transparent;cursor:pointer;transition:all .3s ease}.indicator:hover{border-color:#fffc;transform:scale(1.2)}.indicator.active{background:#fff;border-color:#fff}@media (max-width: 768px){.carousel-content{margin-bottom:10rem;grid-template-columns:1fr;gap:4rem;text-align:center}.carousel-3d-container{height:400px}.book-scene{width:160px;height:300px}.carousel-btn-prev{transform:translate(-50px)}.carousel-btn-next{transform:translate(50px)}.book-info h2{font-size:2rem}.book-buttons{justify-content:center}.book-description{padding:1.5rem}}@media (max-width: 480px){.book-scene{width:200px;height:280px}.book-info h2{font-size:1.8rem}.carousel-btn{width:40px;height:40px;font-size:1.2rem}.book-buttons{flex-direction:column;align-items:center}.book-prices{justify-content:center}}.scroll-to-top{position:fixed;bottom:30px;right:30px;width:50px;height:50px;border-radius:50%;background:var(--secondary-color);color:#fff;border:none;font-size:1.5rem;font-weight:700;cursor:pointer;box-shadow:var(--shadow-lg);transition:var(--transition);z-index:1000;display:flex;align-items:center;justify-content:center}.scroll-to-top:hover{background:#c0392b;transform:translateY(-3px);box-shadow:0 15px 30px #0003}.scroll-to-top:active{transform:translateY(-1px)}@media (max-width: 768px){.scroll-to-top{bottom:20px;right:20px;width:45px;height:45px;font-size:1.3rem}}