*{margin:0;padding:0;box-sizing:border-box}:root{--color-primary: #2563eb;--color-primary-dark: #1e40af;--color-primary-light: #3b82f6;--color-secondary: #10b981;--color-accent: #8b5cf6;--color-warning: #f59e0b;--color-error: #ef4444;--color-bg: #ffffff;--color-bg-secondary: #f8fafc;--color-bg-dark: #0f172a;--color-surface: #ffffff;--color-text: #1e293b;--color-text-secondary: #64748b;--color-text-light: #94a3b8;--color-border: #e2e8f0;--color-border-light: #f1f5f9;--gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);--gradient-hero: linear-gradient(135deg, #2563eb 0%, #8b5cf6 100%);--shadow-sm: 0 1px 2px 0 rgb(0 0 0 / .05);--shadow-md: 0 4px 6px -1px rgb(0 0 0 / .1);--shadow-lg: 0 10px 15px -3px rgb(0 0 0 / .1);--shadow-xl: 0 20px 25px -5px rgb(0 0 0 / .1);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{margin:0;min-width:320px;min-height:100vh;background-color:var(--color-bg);color:var(--color-text);line-height:1.6}#root{min-height:100vh;display:flex;flex-direction:column}.container{max-width:1280px;margin:0 auto;padding:0 20px}h1,h2,h3,h4,h5,h6{line-height:1.2;font-weight:700}a{color:var(--color-primary);text-decoration:none;transition:color .2s}a:hover{color:var(--color-primary-dark)}.btn{display:inline-flex;align-items:center;justify-content:center;padding:.5rem 1.25rem;font-size:.95rem;font-weight:500;border-radius:8px;border:none;cursor:pointer;transition:all .2s;text-decoration:none;white-space:nowrap}.btn-primary{background:var(--gradient-hero);color:#fff;box-shadow:var(--shadow-md)}.btn-primary:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg)}.btn-secondary{background:#fff;color:var(--color-text);border:1px solid var(--color-border)}.btn-secondary:hover{background:var(--color-bg-secondary);border-color:var(--color-border)}.btn-large{padding:.75rem 2rem;font-size:1.1rem}.btn-block{width:100%}.section-title{font-size:2.5rem;text-align:center;margin-bottom:1rem;background:var(--gradient-hero);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.section-subtitle{font-size:1.25rem;color:var(--color-text-secondary);text-align:center;margin-bottom:3rem;max-width:600px;margin-left:auto;margin-right:auto}.gradient-text{background:var(--gradient-hero);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}@media(max-width:768px){.section-title{font-size:2rem}.section-subtitle{font-size:1.1rem}}.app{min-height:100vh;display:flex;flex-direction:column}.header{position:sticky;top:0;background:#fffffff2;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid var(--color-border-light);z-index:1000;box-shadow:0 1px 3px #0000000d}.header .container{display:flex;align-items:center;justify-content:space-between;padding:1rem 20px}.logo-section{flex-shrink:0}.logo-placeholder{display:flex;align-items:center;justify-content:center;width:120px;height:40px;background:var(--gradient-hero);border-radius:8px;padding:.5rem 1rem}.logo-text{color:#fff;font-weight:800;font-size:1.2rem;letter-spacing:.5px}.nav{display:flex;gap:2rem;flex:1;justify-content:center}.nav-link{color:var(--color-text);font-weight:500;transition:color .2s;padding:.5rem 0}.nav-link:hover{color:var(--color-primary)}.auth-buttons{display:flex;gap:.75rem}@media(max-width:768px){.nav{display:none}.header .container{padding:.75rem 20px}.auth-buttons .btn{padding:.4rem 1rem;font-size:.9rem}.logo-placeholder{width:100px;height:35px}.logo-text{font-size:1rem}}.hero{padding:6rem 0;background:linear-gradient(135deg,var(--color-bg-secondary) 0%,var(--color-bg) 100%);position:relative;overflow:hidden}.hero:before{content:"";position:absolute;top:-50%;right:-20%;width:80%;height:80%;background:radial-gradient(circle,rgba(139,92,246,.1) 0%,transparent 70%);pointer-events:none}.hero .container{display:grid;grid-template-columns:1fr 1fr;gap:4rem;align-items:center;position:relative;z-index:1}.hero-content{animation:fadeInUp .8s ease}.hero-title{font-size:3.5rem;font-weight:800;line-height:1.1;margin-bottom:1.5rem;color:var(--color-text)}.hero-subtitle{font-size:1.35rem;color:var(--color-text-secondary);line-height:1.6;margin-bottom:2rem}.hero-features{display:flex;gap:2rem;margin-bottom:2.5rem;flex-wrap:wrap}.hero-feature{display:flex;align-items:center;gap:.5rem;color:var(--color-text)}.hero-feature-icon{width:20px;height:20px;color:var(--color-primary)}.hero-cta{display:flex;gap:1rem;flex-wrap:wrap}.hero-visual{animation:fadeInUp .8s ease .2s both}.app-screenshot-placeholder{background:#fff;border-radius:16px;box-shadow:0 20px 40px #0000001a;padding:1.5rem;transform:perspective(1000px) rotateY(-10deg);transition:transform .3s ease}.app-screenshot-placeholder:hover{transform:perspective(1000px) rotateY(-5deg)}.screenshot-label{font-size:.9rem;color:var(--color-text-light);margin-bottom:1rem;text-align:center}.screenshot-content{aspect-ratio:16/10;background:var(--color-bg-secondary);border-radius:8px;display:flex;align-items:center;justify-content:center;overflow:hidden}.fake-video-grid{display:grid;grid-template-columns:1fr 1fr;gap:.5rem;padding:1rem;width:100%;height:100%}.fake-video{background:linear-gradient(135deg,#667eea,#764ba2);border-radius:4px;opacity:.3;animation:pulse 3s infinite}.fake-video:nth-child(2){animation-delay:.5s}.fake-video:nth-child(3){animation-delay:1s}.fake-video:nth-child(4){animation-delay:1.5s}@keyframes fadeInUp{0%{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}@keyframes pulse{0%,to{opacity:.3}50%{opacity:.5}}@media(max-width:968px){.hero .container{grid-template-columns:1fr;gap:3rem}.hero-title{font-size:2.5rem}.hero-subtitle{font-size:1.15rem}.app-screenshot-placeholder,.app-screenshot-placeholder:hover{transform:none}}@media(max-width:480px){.hero{padding:4rem 0}.hero-title{font-size:2rem}.hero-features{flex-direction:column;gap:1rem}}.features{padding:5rem 0;background:#fff}.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(350px,1fr));gap:2rem;margin-bottom:4rem}.feature-card{padding:2rem;background:var(--color-bg-secondary);border-radius:12px;border:1px solid var(--color-border-light);transition:all .3s ease;position:relative;overflow:hidden}.feature-card:before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--gradient-hero);transform:scaleX(0);transition:transform .3s ease}.feature-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg);border-color:transparent}.feature-card:hover:before{transform:scaleX(1)}.feature-icon{width:48px;height:48px;background:var(--gradient-hero);border-radius:12px;display:flex;align-items:center;justify-content:center;margin-bottom:1rem}.feature-icon svg{width:24px;height:24px;color:#fff}.feature-card h3{font-size:1.25rem;margin-bottom:.75rem;color:var(--color-text)}.feature-card p{color:var(--color-text-secondary);line-height:1.6}.feature-highlight{background:linear-gradient(135deg,var(--color-bg-secondary) 0%,white 100%);border-radius:16px;padding:3rem;border:1px solid var(--color-border-light)}.highlight-content h3{font-size:2rem;margin-bottom:1rem;background:var(--gradient-hero);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.highlight-content p{font-size:1.15rem;color:var(--color-text-secondary);line-height:1.7;margin-bottom:2rem}.vision-screenshot-placeholder{background:#fff;border-radius:12px;padding:2rem;box-shadow:var(--shadow-md);min-height:300px;display:flex;align-items:center;justify-content:center;border:2px dashed var(--color-border)}@media(max-width:768px){.features{padding:3rem 0}.features-grid{grid-template-columns:1fr;gap:1.5rem}.feature-card{padding:1.5rem}.feature-highlight{padding:2rem 1.5rem}.highlight-content h3{font-size:1.5rem}}.how-it-works{padding:5rem 0;background:var(--color-bg-secondary);position:relative}.steps{display:flex;flex-direction:column;gap:3rem;margin-bottom:4rem;position:relative}.steps:before{content:"";position:absolute;left:35px;top:40px;bottom:40px;width:2px;background:linear-gradient(180deg,var(--color-primary) 0%,var(--color-accent) 100%);opacity:.3}.step{display:flex;gap:2rem;align-items:flex-start;position:relative}.step-number{flex-shrink:0;width:70px;height:70px;background:var(--gradient-hero);color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.5rem;font-weight:700;box-shadow:var(--shadow-lg);position:relative;z-index:1}.step-content{flex:1;background:#fff;padding:1.5rem 2rem;border-radius:12px;box-shadow:var(--shadow-sm);border:1px solid var(--color-border-light)}.step-content h3{font-size:1.35rem;margin-bottom:.75rem;color:var(--color-text)}.step-content p{color:var(--color-text-secondary);line-height:1.6}.architecture{margin-top:4rem}.architecture h3{font-size:2rem;text-align:center;margin-bottom:2rem;background:var(--gradient-hero);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.architecture-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:2rem}.arch-card{background:#fff;padding:2rem;border-radius:12px;box-shadow:var(--shadow-md);border:1px solid var(--color-border-light);text-align:center;transition:transform .3s ease}.arch-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg)}.arch-card h4{font-size:1.25rem;margin-bottom:1rem;color:var(--color-primary)}.arch-card p{color:var(--color-text-secondary);line-height:1.6}@media(max-width:768px){.how-it-works{padding:3rem 0}.steps:before{left:30px}.step{gap:1.5rem}.step-number{width:60px;height:60px;font-size:1.25rem}.step-content{padding:1.25rem 1.5rem}.step-content h3{font-size:1.15rem}.architecture-grid{grid-template-columns:1fr}.architecture h3{font-size:1.5rem}}.pricing{padding:5rem 0;background:#fff}.pricing-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:2rem;max-width:1100px;margin:0 auto}.pricing-card{background:#fff;border:2px solid var(--color-border);border-radius:16px;padding:2.5rem 2rem;position:relative;transition:all .3s ease;display:flex;flex-direction:column}.pricing-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-xl)}.pricing-card.featured{border:2px solid var(--color-primary);transform:scale(1.05);box-shadow:var(--shadow-xl)}.pricing-card.featured:hover{transform:scale(1.08) translateY(-5px)}.featured-badge{position:absolute;top:-12px;left:50%;transform:translate(-50%);background:var(--gradient-hero);color:#fff;padding:.35rem 1.5rem;border-radius:20px;font-size:.85rem;font-weight:600;white-space:nowrap}.plan-name{font-size:1.35rem;font-weight:700;color:var(--color-text);margin-bottom:1rem}.plan-price{display:flex;align-items:baseline;gap:.5rem;margin-bottom:.5rem}.price{font-size:3rem;font-weight:800;background:var(--gradient-hero);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.period{color:var(--color-text-secondary);font-size:1rem}.plan-description{color:var(--color-text-secondary);margin-bottom:2rem;padding-bottom:2rem;border-bottom:1px solid var(--color-border-light)}.plan-features{list-style:none;padding:0;margin:0 0 2rem;flex:1}.plan-features li{display:flex;align-items:flex-start;gap:.75rem;margin-bottom:1rem;color:var(--color-text)}.plan-features .check{width:20px;height:20px;flex-shrink:0;color:var(--color-secondary);margin-top:2px}@media(max-width:968px){.pricing-cards{grid-template-columns:1fr;gap:1.5rem}.pricing-card.featured{transform:none}.pricing-card.featured:hover{transform:translateY(-5px)}}@media(max-width:480px){.pricing{padding:3rem 0}.pricing-card{padding:2rem 1.5rem}.price{font-size:2.5rem}}.footer{background:var(--color-bg-dark);color:var(--color-text-light);padding:3rem 0 1.5rem;margin-top:auto}.footer-content{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:3rem;margin-bottom:2rem;padding-bottom:2rem;border-bottom:1px solid rgba(255,255,255,.1)}.footer-section h4{color:#fff;font-size:1.1rem;margin-bottom:1rem;font-weight:600}.footer-section ul{list-style:none;padding:0;margin:0}.footer-section li{margin-bottom:.75rem}.footer-section a{color:var(--color-text-light);transition:color .2s;font-size:.95rem}.footer-section a:hover{color:#fff}.footer-bottom{text-align:center;padding-top:1rem;color:var(--color-text-light);font-size:.9rem}@media(max-width:768px){.footer{padding:2rem 0 1rem}.footer-content{grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:2rem}.footer-section h4{font-size:1rem}.footer-section a{font-size:.9rem}}