*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:#f5f5f5;color:#333}.container{max-width:640px;margin:40px auto;padding:0 20px}.card{background:#fff;border-radius:8px;padding:32px;box-shadow:0 1px 3px #0000001a}.login-card{text-align:center}.login-card h1{margin-bottom:8px}.login-card p{color:#666;margin-bottom:24px}.header{display:flex;justify-content:space-between;align-items:center;margin-bottom:24px;flex-wrap:wrap;gap:12px}.header h1{font-size:1.4rem}.user-info{display:flex;align-items:center;gap:12px;font-size:.9rem;color:#666}.section{margin-bottom:24px}.section h2{font-size:1rem;margin-bottom:8px}.input-group{display:flex;gap:8px}.input-group input{flex:1;padding:8px 12px;border:1px solid #ddd;border-radius:4px;font-size:.9rem}.input-group input:focus{outline:none;border-color:#4285f4}.btn{padding:8px 16px;border:1px solid #ddd;border-radius:4px;background:#fff;cursor:pointer;font-size:.9rem}.btn:hover{background:#f5f5f5}.btn-primary{background:#4285f4;color:#fff;border-color:#4285f4}.btn-primary:hover{background:#3367d6}.btn-primary:disabled{background:#a4c2f4;border-color:#a4c2f4;cursor:not-allowed}.btn-google{background:#4285f4;color:#fff;border:none;padding:12px 24px;font-size:1rem;border-radius:4px;cursor:pointer}.btn-google:hover{background:#3367d6}.btn-small{padding:4px 12px;font-size:.8rem}.hint{margin-top:8px;font-size:.85rem;color:#666}.message{margin-top:12px;font-size:.9rem;color:#333}.file-list{margin-top:12px;list-style:none}.file-list li{padding:8px 12px;background:#f0f7ff;border-radius:4px;margin-bottom:4px;font-size:.9rem}.sandbox-meta{display:flex;align-items:center;gap:12px;margin-bottom:12px}.sandbox-badge{display:inline-block;padding:4px 12px;border-radius:4px;font-size:.85rem;font-weight:600;background:#e8f5e9;color:#2e7d32}.sandbox-table{width:100%;border-collapse:collapse;font-size:.9rem}.sandbox-table th,.sandbox-table td{padding:6px 10px;border-bottom:1px solid #eee;text-align:left}.sandbox-table th{font-size:.8rem;color:#888;font-weight:600;text-transform:uppercase}.sandbox-field{font-weight:600;white-space:nowrap}.sandbox-reasoning{color:#888;font-size:.85em}.landing{background:#fff;color:#1a1a2e}.landing-nav{position:fixed;top:0;left:0;right:0;background:#fffffff2;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border-bottom:1px solid #eee;z-index:100}.landing-nav-inner{max-width:960px;margin:0 auto;padding:16px 24px;display:flex;justify-content:space-between;align-items:center}.landing-logo{font-size:1.4rem;font-weight:700;color:#1a1a2e;text-decoration:none;letter-spacing:-.02em}.landing-enter{padding:8px 20px;background:#1a1a2e;color:#fff;border-radius:6px;text-decoration:none;font-size:.9rem;font-weight:500;transition:background .2s}.landing-enter:hover{background:#2d2d4e}.landing-hero{padding:140px 24px 80px;text-align:center;background:linear-gradient(180deg,#f8f9ff,#fff)}.landing-container{max-width:960px;margin:0 auto}.landing-hero h1{font-size:3.2rem;font-weight:800;line-height:1.15;letter-spacing:-.03em;color:#1a1a2e;margin-bottom:24px}.landing-highlight{color:#4361ee}.landing-subtitle{font-size:1.2rem;color:#555;max-width:600px;margin:0 auto 40px;line-height:1.7}.landing-cta-group{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}.landing-cta{display:inline-block;padding:14px 32px;background:#4361ee;color:#fff;border-radius:8px;text-decoration:none;font-size:1rem;font-weight:600;transition:background .2s,transform .15s}.landing-cta:hover{background:#3451d1;transform:translateY(-1px)}.landing-cta-secondary{display:inline-block;padding:14px 32px;background:transparent;color:#4361ee;border:2px solid #4361ee;border-radius:8px;text-decoration:none;font-size:1rem;font-weight:600;transition:background .2s}.landing-cta-secondary:hover{background:#f0f3ff}.landing-section{padding:80px 24px}.landing-section h2{font-size:2rem;font-weight:700;text-align:center;margin-bottom:48px;letter-spacing:-.02em}.landing-pain{background:#fafafa}.landing-grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-bottom:40px}.landing-pain-card{background:#fff;border:1px solid #eee;border-radius:12px;padding:32px 24px;text-align:center}.landing-pain-icon{font-size:2.4rem;margin-bottom:16px}.landing-pain-card p{font-size:.95rem;color:#555;line-height:1.6}.landing-pain-punchline{text-align:center;font-size:1.1rem;color:#444;line-height:1.8}.landing-steps{max-width:640px;margin:0 auto;display:flex;flex-direction:column;gap:32px}.landing-step{display:flex;gap:20px;align-items:flex-start}.landing-step-num{flex-shrink:0;width:44px;height:44px;background:#4361ee;color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:1.1rem}.landing-step h3{font-size:1.1rem;font-weight:600;margin-bottom:4px}.landing-step p{font-size:.95rem;color:#555;line-height:1.6}.landing-features-bg{background:#f8f9ff}.landing-grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}.landing-feature{background:#fff;border:1px solid #e8eaf6;border-radius:12px;padding:28px}.landing-feature h3{font-size:1.05rem;font-weight:600;margin-bottom:8px;color:#1a1a2e}.landing-feature p{font-size:.9rem;color:#555;line-height:1.6}.landing-tech-row{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-bottom:24px}.landing-tech-badge{padding:8px 16px;background:#f0f3ff;color:#4361ee;border-radius:20px;font-size:.85rem;font-weight:600}.landing-tech-note{text-align:center;font-size:.95rem;color:#666;max-width:560px;margin:0 auto;line-height:1.7}.landing-final-cta{background:#1a1a2e;color:#fff;text-align:center}.landing-final-cta h2{color:#fff;margin-bottom:16px}.landing-final-cta p{color:#aaa;font-size:1.05rem;margin-bottom:32px}.landing-final-cta .landing-cta{background:#4361ee}.landing-final-cta .landing-cta:hover{background:#5a7bff}.landing-footer{padding:24px;border-top:1px solid #eee}.landing-footer .landing-container{display:flex;justify-content:space-between;align-items:center}.landing-footer-text{font-size:.85rem;color:#999}@media (max-width: 768px){.landing-hero h1{font-size:2.2rem}.landing-subtitle{font-size:1rem}.landing-grid-3,.landing-grid-2{grid-template-columns:1fr}.landing-section h2{font-size:1.6rem}}
