:root{--font-sans:"Inter", "Helvetica Neue", Helvetica, Arial, sans-serif;--font-display:"Playfair Display", "Times New Roman", Times, serif;--color-bg:#fbfaf9;--color-bg-alt:#fff;--color-text:#2c2921;--color-text-muted:#706b5c;--color-accent:#4b3b07;--color-accent-hover:#755c0a;--color-accent-light:#edeade;--border-radius:12px;--transition:all .3s cubic-bezier(.25, .8, .25, 1);--shadow-sm:0 4px 6px -1px #0000000d, 0 2px 4px -1px #00000008;--shadow-md:0 10px 25px -3px #0000001a, 0 4px 6px -2px #0000000d}*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{font-family:var(--font-sans);background-color:var(--color-bg);color:var(--color-text);line-height:1.6;overflow-x:hidden}h1,h2,h3,.logo{font-family:var(--font-display);font-weight:700;line-height:1.2}a{color:inherit;transition:var(--transition);text-decoration:none}.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}.btn-primary{background-color:var(--color-accent);color:#fff;border-radius:var(--border-radius);box-shadow:var(--shadow-sm);padding:12px 28px;font-weight:600;display:inline-block}.btn-primary:hover{background-color:var(--color-accent-hover);box-shadow:var(--shadow-md);transform:translateY(-2px)}.btn-primary.large{padding:16px 36px;font-size:1.1rem}.btn-secondary{background-color:var(--color-accent-light);color:var(--color-accent);border-radius:var(--border-radius);padding:10px 24px;font-weight:600;display:inline-block}.btn-secondary:hover{background-color:var(--color-accent);color:#fff}.btn-outline{color:var(--color-text);border:1px solid var(--color-text-muted);border-radius:var(--border-radius);background-color:#0000;padding:12px 28px;font-weight:600;display:inline-block}.btn-outline:hover{border-color:var(--color-text);background-color:var(--color-text);color:#fff}.navbar{-webkit-backdrop-filter:blur(12px);z-index:1000;background:#fffc;border-bottom:1px solid #0000000d;width:100%;position:fixed;top:0}.nav-content{justify-content:space-between;align-items:center;height:70px;display:flex}.logo{letter-spacing:-.5px;font-size:1.5rem;font-weight:800}nav{gap:32px;display:flex}nav a{color:var(--color-text-muted);font-weight:500}nav a:hover{color:var(--color-accent)}.hero{background:linear-gradient(135deg, var(--color-bg) 0%, #fff 100%);padding:160px 0 100px;position:relative;overflow:hidden}.hero-content{z-index:2;justify-content:space-between;align-items:center;gap:60px;display:flex;position:relative}.hero-text{flex:1;max-width:600px}.badge{background:var(--color-accent-light);color:var(--color-accent);border-radius:30px;margin-bottom:24px;padding:6px 12px;font-size:.875rem;font-weight:600;display:inline-block}.hero h1{letter-spacing:-1.5px;margin-bottom:24px;font-size:4rem}.hero h1 .highlight{color:var(--color-accent);display:inline-block;position:relative}.hero h1 .highlight:after{content:"";background-color:var(--color-accent-light);z-index:-1;border-radius:4px;width:100%;height:8px;position:absolute;bottom:8px;left:0}.hero .subtitle{color:var(--color-text-muted);margin-bottom:40px;font-size:1.25rem}.cta-group{gap:16px;display:flex}.hero-image{flex:1;justify-content:center;display:flex}.book-mockup{background:#fff;border-radius:8px 16px 16px 8px;justify-content:center;align-items:center;width:300px;height:450px;transition:transform .5s;display:flex;position:relative;overflow:hidden;transform:perspective(1000px)rotateY(-15deg)rotateX(5deg);box-shadow:-10px 10px 30px #00000026,inset 4px 0 10px #0000000d}.book-mockup:before{content:"";background:linear-gradient(90deg,#fffc,#fff0 50%,#0000001a);width:20px;height:100%;position:absolute;top:0;left:0}.book-mockup:hover{transform:perspective(1000px)rotateY(-5deg)rotateX(2deg)}.book-front{text-align:center;color:#333;background:linear-gradient(135deg,#f5f7fa 0%,#c3cfe2 100%);flex-direction:column;justify-content:center;width:100%;height:100%;padding:30px;display:flex}.bg-shape{background:radial-gradient(circle, var(--color-accent-light) 0%, transparent 70%);z-index:1;opacity:.6;border-radius:50%;width:600px;height:600px;position:absolute;top:-100px;right:-100px}.section{background-color:var(--color-bg-alt);padding:100px 0}.section-header{text-align:center;max-width:600px;margin:0 auto 60px}.section-header h2{margin-bottom:16px;font-size:2.5rem}.section-header p{color:var(--color-text-muted);font-size:1.125rem}.features-grid{grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:32px;display:grid}.feature-card{background:var(--color-bg);transition:var(--transition);border:1px solid #00000008;border-radius:20px;padding:40px}.feature-card:hover{box-shadow:var(--shadow-md);background:#fff;transform:translateY(-5px)}.feature-card .icon{margin-bottom:24px;font-size:2.5rem}.feature-card h3{margin-bottom:12px;font-size:1.25rem}.feature-card p{color:var(--color-text-muted)}.cta-section{padding:100px 0}.cta-box{background:linear-gradient(135deg, var(--color-text) 0%, #1a202c 100%);text-align:center;color:#fff;box-shadow:var(--shadow-md);border-radius:24px;padding:80px 40px}.cta-box h2{margin-bottom:16px;font-size:2.5rem}.cta-box p{opacity:.9;margin-bottom:40px;font-size:1.125rem}footer{background-color:var(--color-bg-alt);border-top:1px solid #0000000d;padding:40px 0}.footer-content{color:var(--color-text-muted);justify-content:space-between;align-items:center;display:flex}.footer-links{gap:24px;display:flex}.fade-in-up{opacity:0;animation:.8s cubic-bezier(.25,.8,.25,1) forwards fadeInUp;transform:translateY(20px)}.fade-in{opacity:0;animation:1s forwards fadeIn}.delay-1{animation-delay:.1s}.delay-2{animation-delay:.2s}.delay-3{animation-delay:.3s}@keyframes fadeInUp{to{opacity:1;transform:translateY(0)}}@keyframes fadeIn{to{opacity:1}}@media (width<=768px){.hero-content{text-align:center;flex-direction:column}.hero h1{font-size:3rem}.cta-group{justify-content:center}.nav-content nav,.nav-content .btn-secondary{display:none}}.split-section{padding:80px 0}.split-content{align-items:center;gap:60px;display:flex}.split-content.reversed{flex-direction:row-reverse}.text-content{flex:1}.text-content h2{margin-bottom:24px;font-size:2.5rem}.text-content p{color:var(--color-text-muted);margin-bottom:16px;font-size:1.125rem}.image-content{flex:1;justify-content:center;display:flex}.illustration{max-width:100%;box-shadow:var(--shadow-md);border-radius:16px}.interactive-section{padding:100px 0}.flowchart-container{box-shadow:var(--shadow-md);background:#fff;border-radius:24px;max-width:900px;margin:0 auto;padding:40px}.flow-tabs{border-bottom:2px solid var(--color-bg);gap:16px;margin-bottom:40px;padding-bottom:16px;display:flex;overflow-x:auto}.flow-tab{font-family:var(--font-sans);color:var(--color-text-muted);cursor:pointer;transition:var(--transition);white-space:nowrap;background:0 0;border:none;border-radius:8px;padding:8px 16px;font-size:1.1rem;font-weight:600}.flow-tab:hover{background:var(--color-bg);color:var(--color-text)}.flow-tab.active{background:var(--color-accent-light);color:var(--color-accent)}.flow-panel{animation:.5s fadeIn;display:none}.flow-panel.active{display:block}.panel-intro{color:var(--color-text-muted);margin:16px 0 32px;font-size:1.125rem}.timeline{flex-direction:column;gap:24px;padding-left:20px;display:flex;position:relative}.timeline:before{content:"";background:var(--color-bg);z-index:1;width:2px;height:100%;position:absolute;top:0;left:35px}.step{z-index:2;transition:var(--transition);background:#fff;border:1px solid #0000000d;border-radius:12px;align-items:center;gap:24px;padding:16px;display:flex;position:relative}.step:hover{box-shadow:var(--shadow-sm);border-color:var(--color-accent-light);transform:translate(10px)}.step-num{border:2px solid var(--color-accent);width:32px;height:32px;color:var(--color-accent);background:#fff;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;font-weight:700;display:flex}.step-text{font-size:1.1rem}.step.result{background:var(--color-accent-light);border-color:var(--color-accent-light)}.step.result .step-num{background:var(--color-accent);color:#fff}.step.warning .step-num{color:#e53e3e;border-color:#e53e3e}.vertical-scrollable{max-height:500px;padding-right:16px;overflow-y:auto}.vertical-scrollable::-webkit-scrollbar{width:8px}.vertical-scrollable::-webkit-scrollbar-track{background:var(--color-bg);border-radius:4px}.vertical-scrollable::-webkit-scrollbar-thumb{background:var(--color-accent-light);border-radius:4px}.faq-list{flex-direction:column;gap:24px;max-width:800px;margin:0 auto;display:flex}.faq-item{box-shadow:var(--shadow-sm);background:#fff;border-radius:16px;padding:32px}.faq-item h4{color:var(--color-text);margin-bottom:12px;font-size:1.25rem}.faq-item p{color:var(--color-text-muted)}@media (width<=768px){.split-content,.split-content.reversed{flex-direction:column}.flowchart-container{padding:24px}.timeline:before{left:24px}.step{flex-direction:column;align-items:flex-start;gap:12px}}