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20px;background:#fff;color:#333;border:none;border-radius:var(--radius-sm);font-size:14px;font-weight:600;cursor:pointer;transition:var(--transition)}.btn-google-sign-in:hover{background:#f1f1f1;box-shadow:0 2px 8px #0000004d}.landing-hero{display:flex;align-items:center;justify-content:space-between;padding:80px 40px 60px;max-width:1200px;margin:0 auto;gap:60px}.landing-hero-content{flex:1;max-width:600px}.landing-title{font-size:48px;font-weight:800;line-height:1.15;color:var(--text-primary);margin-bottom:20px}.landing-gradient-text{background:linear-gradient(135deg,#6c63ff,#00d4aa);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.landing-subtitle{font-size:17px;color:var(--text-secondary);line-height:1.7;margin-bottom:32px}.btn-hero-cta{display:inline-flex;align-items:center;gap:10px;padding:14px 32px;background:linear-gradient(135deg,#6c63ff,#00d4aa);color:#fff;border:none;border-radius:var(--radius-md);font-size:16px;font-weight:700;cursor:pointer;transition:var(--transition)}.btn-hero-cta:hover{transform:translateY(-2px);box-shadow:0 8px 24px #6c63ff4d}.landing-hero-visual{flex-shrink:0}.landing-hero-logo{width:280px;height:280px;opacity:.85;filter:drop-shadow(0 0 40px rgba(108,99,255,.2));animation:float 6s ease-in-out infinite}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-12px)}}.landing-about{padding:60px 40px;max-width:1200px;margin:0 auto}.landing-section-title{font-size:28px;font-weight:700;text-align:center;margin-bottom:40px;color:var(--text-primary)}.landing-about-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}.landing-card{background:var(--bg-panel);border:1px solid var(--border);border-radius:var(--radius-lg);padding:28px;transition:var(--transition)}.landing-card:hover{border-color:var(--accent-solver);transform:translateY(-4px);box-shadow:0 8px 24px #0006}.landing-card-icon{font-size:32px;margin-bottom:14px}.landing-card h3{font-size:16px;font-weight:700;color:var(--text-primary);margin-bottom:10px}.landing-card p{font-size:14px;color:var(--text-secondary);line-height:1.7}.landing-card em{color:var(--accent-ocr)}.landing-card strong{color:var(--accent-solver)}.landing-features{padding:60px 40px;max-width:1000px;margin:0 auto}.landing-steps{display:flex;align-items:flex-start;gap:16px}.landing-step{flex:1;text-align:center;padding:20px}.landing-step-num{width:44px;height:44px;border-radius:50%;background:linear-gradient(135deg,#6c63ff,#00d4aa);color:#fff;font-size:18px;font-weight:800;display:flex;align-items:center;justify-content:center;margin:0 auto 14px}.landing-step h3{font-size:16px;font-weight:700;margin-bottom:8px;color:var(--text-primary)}.landing-step p{font-size:13px;color:var(--text-secondary);line-height:1.6}.landing-step-arrow{font-size:24px;color:var(--text-muted);margin-top:30px;flex-shrink:0}.landing-footer{text-align:center;padding:40px;border-top:1px solid var(--border);color:var(--text-muted);font-size:13px}.landing-footer-logo{width:32px;height:32px;margin-bottom:10px;opacity:.5}@media(max-width:900px){.landing-hero{flex-direction:column;text-align:center;padding:40px 20px;gap:30px}.landing-hero-content{max-width:100%}.landing-hero-logo{width:160px;height:160px}.landing-title{font-size:30px}.landing-subtitle{font-size:15px}.btn-hero-cta{width:100%;justify-content:center}.landing-about-grid{grid-template-columns:1fr}.landing-steps{flex-direction:column}.landing-step-arrow{transform:rotate(90deg);margin:0 auto}.landing-nav{padding:12px 16px}.landing-nav-brand{gap:8px}.landing-logo{width:28px;height:28px}.landing-brand-text{font-size:15px}.btn-google-sign-in{padding:8px 14px;font-size:13px}.landing-about,.landing-features{padding:40px 20px}.landing-section-title{font-size:22px;margin-bottom:24px}.landing-footer{padding:24px 20px}}