@import "https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap";:root{--primary:#2563eb;--primary-hover:#1d4ed8;--bg-color:#f8fafc;--text-main:#0f172a;--text-muted:#64748b;--card-bg:#fff;--border-color:#e2e8f0}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--bg-color);color:var(--text-main);min-height:100vh;font-family:Inter,sans-serif;overflow-x:hidden}.app-container{max-width:1200px;margin:0 auto;padding:2rem}.navbar{border-bottom:1px solid var(--border-color);justify-content:space-between;align-items:center;margin-bottom:2rem;padding:1.5rem 0;display:flex}.nav-brand{color:var(--primary);align-items:center;gap:.5rem;font-size:1.5rem;font-weight:700;text-decoration:none;display:flex}.nav-links{gap:1.5rem;display:flex}.nav-link{color:var(--text-muted);align-items:center;gap:.25rem;font-weight:500;text-decoration:none;transition:color .2s;display:flex}.nav-link:hover,.nav-link.active{color:var(--primary)}.landing-hero{text-align:center;padding:4rem 1rem}.landing-hero h1{color:var(--text-main);margin-bottom:1rem;font-size:3rem;font-weight:800}.landing-hero p{color:var(--text-muted);max-width:600px;margin:0 auto 2rem;font-size:1.25rem}.feature-grid{grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:2rem;margin-top:4rem;display:grid}.feature-card{border:1px solid var(--border-color);text-align:center;background:#fff;border-radius:16px;padding:2rem;box-shadow:0 4px 6px #00000005}.feature-card h3{color:var(--text-main);margin:1rem 0 .5rem}.feature-card p{color:var(--text-muted)}.tabs{justify-content:center;gap:1rem;margin-bottom:2rem;display:flex}.tab-btn{border:1px solid var(--border-color);color:var(--text-muted);cursor:pointer;background:#fff;border-radius:99px;align-items:center;gap:.5rem;padding:.75rem 1.5rem;font-family:inherit;font-weight:600;transition:all .2s;display:flex}.tab-btn:hover{border-color:var(--primary);color:var(--primary)}.tab-btn.active{background:var(--primary);color:#fff;border-color:var(--primary)}.clean-card{background:var(--card-bg);border:1px solid var(--border-color);border-radius:24px;padding:2.5rem;box-shadow:0 10px 15px -3px #0000000d}.scanner-area{cursor:pointer;background:#f1f5f9;border:2px dashed #cbd5e1;border-radius:16px;flex-direction:column;justify-content:center;align-items:center;width:100%;min-height:400px;transition:all .2s;display:flex;position:relative;overflow:hidden}.scanner-area:hover{border-color:var(--primary);background:#e2e8f0}.scanner-area.has-content{cursor:default;background:#fff;border-style:solid;border-color:#0000}.preview-image,.preview-video{object-fit:contain;border-radius:12px;max-width:100%;max-height:600px}.detection-canvas{pointer-events:none;width:100%;height:100%;position:absolute;top:0;left:0}.btn-primary{background:var(--primary);color:#fff;cursor:pointer;border:none;border-radius:12px;justify-content:center;align-items:center;gap:.5rem;padding:.875rem 2rem;font-size:1rem;font-weight:600;transition:all .2s;display:flex}.btn-primary:hover{background:var(--primary-hover);transform:translateY(-1px)}.btn-primary:disabled{cursor:not-allowed;background:#cbd5e1;transform:none}.btn-outline{color:var(--primary);border:2px solid var(--primary);cursor:pointer;background:0 0;border-radius:12px;justify-content:center;align-items:center;gap:.5rem;padding:.875rem 2rem;font-size:1rem;font-weight:600;transition:all .2s;display:flex}.btn-outline:hover{background:#eff6ff}.results-panel{border-top:1px solid var(--border-color);margin-top:2rem;padding-top:2rem}.results-grid{grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:1rem;margin-top:1rem;display:grid}.stat-card{text-align:center;border:1px solid var(--border-color);background:#f8fafc;border-radius:12px;padding:1.5rem}.stat-value{color:var(--primary);font-size:2rem;font-weight:700}.stat-label{color:var(--text-muted);margin-top:.25rem;font-size:.875rem;font-weight:500}.loading-overlay{z-index:10;background:#ffffffe6;flex-direction:column;justify-content:center;align-items:center;display:flex;position:absolute;inset:0}.spinner{border:3px solid #e2e8f0;border-top-color:var(--primary);border-radius:50%;width:40px;height:40px;margin-bottom:1rem;animation:1s ease-in-out infinite spin}.history-item{border:1px solid var(--border-color);background:#fff;border-radius:16px;gap:1.5rem;margin-bottom:1rem;padding:1.5rem;display:flex}.history-img{object-fit:cover;background:#f1f5f9;border-radius:8px;width:150px;height:100px}.history-content h4{color:var(--text-main);margin-bottom:.25rem;font-size:1.1rem}.history-content p{color:var(--text-muted);font-size:.9rem}input[type=file]{display:none}@keyframes spin{to{transform:rotate(360deg)}}