*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;line-height:1.6;color:#2c3e50;background:#f8f9fa;min-height:100vh}.container{max-width:1200px;margin:0 auto;padding:0 20px}.header{background:#fffffff2;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);position:fixed;top:0;left:0;right:0;z-index:1000;border-bottom:1px solid rgba(255,255,255,.2)}.nav{display:flex;justify-content:space-between;align-items:center;padding:1rem 0}.logo h1{font-size:1.5rem;font-weight:700;color:#667eea;margin:0}.nav-links{display:flex;gap:2rem}.nav-links a{text-decoration:none;color:#2c3e50;font-weight:500;transition:color .3s ease}.nav-links a:hover{color:#667eea}.hero{padding:140px 0 60px;text-align:center;background:#fff;border-bottom:1px solid #e9ecef}.hero-content h1{font-size:2.5rem;font-weight:600;margin-bottom:1rem;line-height:1.3;color:#2c3e50}.hero-subtitle{font-size:1.1rem;margin-bottom:0;color:#6c757d;max-width:600px;margin-left:auto;margin-right:auto;line-height:1.5}.section{padding:80px 0;background:#fff}.section:nth-child(2n){background:#f8f9fa}.section h2{text-align:center;font-size:2.5rem;margin-bottom:3rem;color:#2c3e50}.use-case{background:#f8f9fa;padding:2rem;border-radius:15px;margin-bottom:3rem;border-left:4px solid #667eea}.use-case p{font-size:1.1rem;line-height:1.6;margin:0;color:#2c3e50}.steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:3rem;margin-top:3rem}.step{text-align:center;padding:2rem;border-radius:20px;background:#fff;box-shadow:0 10px 30px #0000001a;transition:transform .3s ease}.step:hover{transform:translateY(-5px)}.step-number{display:inline-block;width:60px;height:60px;line-height:60px;border-radius:50%;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;font-size:1.5rem;font-weight:700;margin-bottom:1.5rem}.step h3{font-size:1.5rem;margin-bottom:1rem;color:#2c3e50}.converter-section{background:#f8f9fa;color:#2c3e50;padding:80px 0}.converter-section h2{color:#2c3e50;margin-bottom:3rem}.samples{background:#f8f9fa;padding:2rem;border-radius:15px;margin-bottom:3rem;border:1px solid #e9ecef}.samples h3{margin-bottom:1.5rem;text-align:center;color:#2c3e50}.sample-links{display:flex;gap:1rem;justify-content:center;flex-wrap:wrap}.sample-link{display:inline-block;padding:.75rem 1.5rem;background:#667eea;color:#fff;text-decoration:none;border-radius:25px;transition:all .3s ease;font-weight:500}.sample-link:hover{background:#5a6fd8;transform:translateY(-2px)}.converter-form{max-width:600px;margin:0 auto;background:#fff;padding:3rem;border-radius:20px;box-shadow:0 10px 30px #0000001a;border:1px solid #e9ecef}.form-group{margin-bottom:2rem}.form-group label{display:block;margin-bottom:.75rem;font-weight:600;font-size:1.1rem}.form-group input{width:100%;padding:1rem 1.5rem;border:2px solid #e9ecef;border-radius:10px;font-size:1rem;background:#f8f9fa;transition:all .3s ease}.form-group input:focus{outline:none;background:#fff;border-color:#667eea;box-shadow:0 0 0 3px #667eea1a}.radio-group{display:flex;flex-direction:column;gap:1rem}.radio-option{display:flex;align-items:center;padding:1rem;border:2px solid #e9ecef;border-radius:10px;background:#f8f9fa;cursor:pointer;transition:all .3s ease}.radio-option:hover{border-color:#667eea;background:#667eea0d}.radio-option input[type=radio]{width:auto;margin-right:.75rem;accent-color:#667eea}.radio-option input[type=radio]:checked+.radio-text{font-weight:600;color:#667eea}.radio-option:has(input[type=radio]:checked){border-color:#667eea;background:#667eea1a}.url-hint{display:block;margin-top:.5rem;font-size:.9rem;color:#6c757d;font-style:italic}.features-section{background:linear-gradient(135deg,#f8f9fa,#e9ecef);padding:4rem 0}.features-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:2rem;margin-bottom:3rem}@media (max-width: 768px){.features-grid{grid-template-columns:1fr}}.feature{background:#fff;padding:2rem;border-radius:15px;box-shadow:0 5px 15px #00000014;border:1px solid #e9ecef;transition:transform .3s ease,box-shadow .3s ease}.feature:hover{transform:translateY(-5px);box-shadow:0 10px 25px #0000001f}.feature h3{color:#667eea;margin-bottom:1rem;font-size:1.2rem;font-weight:600}.feature p{color:#6c757d;line-height:1.6}.seo-content{padding:3rem 0;max-width:1000px;margin:0 auto;text-align:center}.seo-content h2{color:#2c3e50;margin-bottom:2.5rem;font-size:2rem;font-weight:700}.limitations-columns{display:grid;grid-template-columns:1fr 1fr;gap:3rem;margin-bottom:2.5rem;text-align:left}.limitations-column h3{color:#667eea;margin-bottom:1.5rem;font-size:1.3rem;font-weight:600;text-align:center}.limitations-column ul{margin:0;padding-left:1.5rem;color:#495057}.limitations-column li{margin-bottom:.8rem;line-height:1.6}.limitations-column strong{color:#2c3e50}.seo-tagline{color:#667eea;font-style:italic;font-size:1.1rem;line-height:1.6;margin-top:2rem;padding-top:2rem;border-top:1px solid rgba(102,126,234,.2);max-width:800px;margin-left:auto;margin-right:auto}@media (max-width: 768px){.limitations-columns{grid-template-columns:1fr;gap:2rem}.seo-content h2{font-size:1.6rem}}.generate-btn{width:100%;padding:1.25rem 2rem;background:#667eea;color:#fff;border:none;border-radius:10px;font-size:1.1rem;font-weight:600;cursor:pointer;transition:all .3s ease;display:flex;align-items:center;justify-content:center;gap:.5rem}.generate-btn:hover{background:#5a6fd8;transform:translateY(-1px);box-shadow:0 4px 12px #667eea4d}.generate-btn:disabled{opacity:.7;cursor:not-allowed}.spinner{display:none;width:20px;height:20px;border:2px solid #f3f3f3;border-top:2px solid #667eea;border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.progress-bar{display:none;width:100%;height:8px;background:#fff3;border-radius:10px;margin:2rem 0;overflow:hidden}.progress-fill{height:100%;background:linear-gradient(90deg,#fff,#fffc);border-radius:10px;transition:width .3s ease;width:0%}.status{display:none;padding:1.5rem;border-radius:15px;margin-top:2rem;font-weight:500;text-align:center}.status.success{background:#2ecc7133;color:#27ae60;border:1px solid rgba(46,204,113,.3)}.status.error{background:#e74c3c33;color:#e74c3c;border:1px solid rgba(231,76,60,.3)}.status.processing{background:#3498db33;color:#3498db;border:1px solid rgba(52,152,219,.3)}.footer{background:#2c3e50;color:#fff;padding:4rem 0 2rem}.footer-content{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:3rem;margin-bottom:2rem}.footer-section h3,.footer-section h4{margin-bottom:1rem}.footer-section p{margin-bottom:1rem;opacity:.8}.contact-link,.feedback-btn{display:inline-block;margin:.5rem 0;padding:.75rem 1.5rem;background:#667eea;color:#fff;text-decoration:none;border-radius:25px;transition:all .3s ease;font-weight:500}.contact-link:hover,.feedback-btn:hover{background:#5a6fd8;transform:translateY(-2px)}.footer-bottom{text-align:center;padding-top:2rem;border-top:1px solid rgba(255,255,255,.1);opacity:.7}.download-btn{display:inline-block;margin-top:1rem;padding:1rem 2rem;background:#27ae60;color:#fff;text-decoration:none;border-radius:25px;font-weight:600;transition:all .3s ease}.download-btn:hover{background:#219a52;transform:translateY(-2px)}@media (max-width: 768px){.nav{flex-direction:column;gap:1rem}.nav-links{gap:1rem}.hero-content h1{font-size:2.5rem}.hero-cta{flex-direction:column;align-items:center}.cta-button{width:100%;max-width:300px}.comparison{grid-template-columns:1fr}.sample-links{flex-direction:column;align-items:center}.converter-form{padding:2rem}.footer-content{grid-template-columns:1fr;text-align:center}}html{scroll-behavior:smooth}::-webkit-scrollbar{width:8px}::-webkit-scrollbar-track{background:#f1f1f1}::-webkit-scrollbar-thumb{background:#667eea;border-radius:4px}::-webkit-scrollbar-thumb:hover{background:#5a6fd8}