*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}#app{min-height:100vh;background:linear-gradient(135deg,#667eea,#764ba2);display:flex;align-items:center;justify-content:center;padding:20px}.container{max-width:800px;width:100%}.card{background:#fff;border-radius:12px;box-shadow:0 20px 60px #0000004d;overflow:hidden}.header{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;padding:3rem 2rem;text-align:center}.header h1{font-size:2.5rem;margin-bottom:.5rem;font-weight:700}.subtitle{font-size:1.1rem;opacity:.95}.content{padding:2rem}.features{display:grid;gap:1.5rem}.feature{display:flex;gap:1rem;padding:1rem;background:#f8f9fa;border-radius:8px;transition:transform .2s,box-shadow .2s}.feature:hover{transform:translateY(-2px);box-shadow:0 4px 12px #0000001a}.icon{width:32px;height:32px;background:#10b981;color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700;flex-shrink:0}.feature-text h3{font-size:1.1rem;margin-bottom:.25rem;color:#1f2937}.feature-text p{font-size:.9rem;color:#6b7280}.divider{height:1px;background:#e5e7eb;margin:2rem 0}.demo{text-align:center;margin:1rem 0}.btn{background:#667eea;color:#fff;border:none;padding:1rem 2rem;font-size:1.1rem;border-radius:8px;cursor:pointer;font-weight:600;transition:background .2s,transform .1s;box-shadow:0 4px 14px #667eea66}.btn:hover{background:#5568d3;transform:translateY(-1px)}.btn:active{transform:translateY(0)}.footer{text-align:center;margin-top:1.5rem}.btn-link{display:inline-flex;align-items:center;gap:.5rem;color:#667eea;text-decoration:none;font-weight:600;padding:.75rem 1.5rem;border:2px solid #667eea;border-radius:8px;transition:background .2s,color .2s}.btn-link:hover{background:#667eea;color:#fff}@media (max-width: 640px){.header h1{font-size:2rem}.content{padding:1.5rem}}