*{margin:0;padding:0;box-sizing:border-box}body{background:#fff;min-height:100vh;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,sans-serif}.app{max-width:1200px;margin:0 auto;padding:3rem 2rem;text-align:center;position:relative}.auth-bar{position:absolute;top:1.5rem;right:2rem;z-index:10}.user-info{display:flex;align-items:center;gap:.6rem;background:#f8f9fa;padding:.4rem 1rem .4rem .4rem;border-radius:50px;box-shadow:0 2px 10px #00000014}.user-avatar{width:36px;height:36px;border-radius:50%;object-fit:cover}.user-name{color:#2d3748;font-size:.9rem;font-weight:500}.btn-logout{background:none;border:none;color:#718096;font-size:.8rem;cursor:pointer;padding:.3rem .6rem;border-radius:6px;transition:all .2s}.btn-logout:hover{background:#e2e8f0;color:#2d3748}.btn-login{display:flex;align-items:center;padding:.6rem 1.2rem;background:#fff;border:1px solid #dadce0;border-radius:8px;font-size:.9rem;font-weight:500;color:#3c4043;cursor:pointer;transition:all .2s;box-shadow:0 1px 3px #00000014}.btn-login:hover{box-shadow:0 2px 8px #00000026;background:#f8f9fa}h1{color:#2d3748;font-size:2.5rem;margin-bottom:.8rem;font-weight:700}.subtitle{color:#718096;font-size:1.1rem;margin-bottom:3rem}.upload-card{background:#f8f9fa;border-radius:24px;padding:4rem 3rem;cursor:pointer;transition:all .3s ease;border:2px dashed #cbd5e0;max-width:500px;margin:0 auto;display:block;box-shadow:0 8px 30px #0000001f}.upload-card:hover{background:#f1f3f5;border-color:#4a5568;transform:translateY(-4px);box-shadow:0 16px 50px #0000002e}.upload-card input[type=file]{display:none}.upload-icon{font-size:4rem;margin-bottom:1.5rem}.upload-card h3{color:#2d3748;font-size:1.5rem;margin-bottom:.8rem;font-weight:600}.upload-card p{color:#718096;font-size:1rem}.result-container{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:2rem;margin:2rem auto;max-width:900px}.result-card{background:#fff;border-radius:20px;padding:1.5rem;box-shadow:0 4px 20px #00000014}.result-card h3{color:#2d3748;font-size:1.2rem;margin-bottom:1rem;font-weight:600}.result-card img{width:100%;max-height:400px;object-fit:contain;border-radius:12px}.loading{color:#4a5568;font-size:1.1rem;margin:1.5rem 0}.actions{margin-top:2rem}.btn-primary,.btn-secondary{padding:.9rem 2.5rem;border:none;border-radius:12px;font-size:1rem;font-weight:600;cursor:pointer;margin:0 .5rem;transition:all .3s ease;text-decoration:none;display:inline-block}.btn-primary{background:#2d3748;color:#fff;box-shadow:0 4px 15px #2d37484d}.btn-primary:hover{background:#1a202c;transform:translateY(-2px);box-shadow:0 6px 20px #2d374866}.btn-secondary{background:#fff;color:#2d3748;border:2px solid #e2e8f0}.btn-secondary:hover{background:#f7fafc;border-color:#cbd5e0;transform:translateY(-2px)}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,sans-serif;background:#fff;min-height:100vh}#root{min-height:100vh}