*{margin:0;padding:0;box-sizing:border-box}:root{--primary: #2563eb;--primary-dark: #1d4ed8;--primary-light: #60a5fa;--secondary: #64748b;--success: #22c55e;--danger: #ef4444;--background: #0f172a;--surface: #1e293b;--surface-light: #334155;--text: #f8fafc;--text-secondary: #94a3b8;--border: #475569;--radius: 12px;--shadow: 0 4px 6px -1px rgba(0, 0, 0, .3)}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;background:var(--background);color:var(--text);min-height:100vh;overflow-x:hidden}.scanner-app{max-width:900px;margin:0 auto;padding:20px;min-height:100vh}.scanner-header{text-align:center;padding:30px 20px;background:linear-gradient(135deg,var(--primary) 0%,var(--primary-dark) 100%);border-radius:var(--radius);margin-bottom:24px}.scanner-header h1{font-size:2rem;font-weight:700;margin-bottom:6px}.scanner-header p{color:#fffc;font-size:1rem}.step-header{text-align:center;margin-bottom:20px}.step-header 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#2563eb4d;background:#000;position:relative}.magnifier-img{position:absolute;width:400px;height:400px;object-fit:cover;max-width:none}.magnifier-cross{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:24px;height:24px;pointer-events:none}.magnifier-cross:before,.magnifier-cross:after{content:"";position:absolute;background:#ffffffe6;border-radius:1px}.magnifier-cross:before{top:0;left:50%;transform:translate(-50%);width:2px;height:100%}.magnifier-cross:after{top:50%;left:0;transform:translateY(-50%);width:100%;height:2px}.magnifier-label{text-align:center;margin-top:8px;font-size:.75rem;color:var(--text-secondary);background:var(--surface);padding:4px 10px;border-radius:10px}.crop-info{text-align:center;margin-bottom:16px;color:var(--text-secondary);font-size:.9rem}.filter-step{padding-bottom:120px}.filter-view-toggle{display:flex;gap:8px;justify-content:center;margin-bottom:20px}.view-btn{padding:10px 20px;border:2px solid var(--border);border-radius:var(--radius);background:transparent;color:var(--text-secondary);font-size:.9rem;font-weight:500;cursor:pointer;transition:all .2s}.view-btn:hover{border-color:var(--primary);color:var(--text)}.view-btn.active{background:var(--primary);border-color:var(--primary);color:#fff}.filter-preview{width:100%;background:#000;border-radius:var(--radius);overflow:hidden;margin-bottom:20px}.filter-preview.full{max-height:60vh}.filter-preview.full .full-image{width:100%;height:100%;object-fit:contain;max-height:60vh}.filter-preview.split{max-height:50vh}.filter-preview.detail{max-height:70vh}.split-container{display:flex;height:50vh}.split-pane{flex:1;position:relative;overflow:hidden}.split-pane img{width:100%;height:100%;object-fit:cover}.split-divider{width:3px;background:var(--primary);position:relative}.split-label{position:absolute;bottom:12px;left:50%;transform:translate(-50%);background:#000000b3;color:#fff;padding:6px 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.2s}.reset-btn:hover{background:var(--danger);color:#fff}.action-buttons{display:flex;gap:12px;justify-content:center;position:fixed;bottom:0;left:0;right:0;padding:20px;background:linear-gradient(transparent,var(--background) 30%);z-index:100}.btn-primary,.btn-secondary{flex:1;max-width:220px;padding:16px 28px;border:none;border-radius:var(--radius);font-size:1rem;font-weight:600;cursor:pointer;transition:all .2s}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary-dark);transform:translateY(-1px)}.btn-primary:disabled{opacity:.6;cursor:not-allowed;transform:none}.btn-secondary{background:var(--surface-light);color:var(--text)}.btn-secondary:hover{background:var(--border)}.pages-section{margin-top:40px;padding-top:30px;border-top:1px solid var(--border)}.pages-section h2{margin-bottom:20px}.pages-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:12px;margin-bottom:20px}.page-card{position:relative;background:var(--surface);border-radius:var(--radius);overflow:hidden}.page-card img{width:100%;aspect-ratio:210/297;object-fit:cover;display:block}.page-actions{position:absolute;top:6px;right:6px;display:flex;gap:4px}.page-btn{width:28px;height:28px;border:none;border-radius:6px;background:#0009;color:#fff;cursor:pointer;font-size:.85rem;display:flex;align-items:center;justify-content:center;transition:background .2s}.page-btn:hover{background:#000c}.page-btn.delete:hover{background:var(--danger)}.page-number{position:absolute;bottom:6px;left:6px;background:#0009;color:#fff;padding:3px 8px;border-radius:4px;font-size:.75rem}.export-panel{background:var(--surface);padding:20px;border-radius:var(--radius)}.export-panel h3{margin-bottom:16px}.export-options{display:flex;gap:8px;margin-bottom:16px}.export-btn{flex:1;padding:14px;border:2px solid var(--border);border-radius:var(--radius);background:transparent;color:var(--text);font-weight:600;cursor:pointer;transition:all .2s}.export-btn:hover{border-color:var(--primary)}.export-btn.active{background:var(--primary);border-color:var(--primary)}.export-download-btn{width:100%;padding:16px;border:none;border-radius:var(--radius);background:var(--success);color:#fff;font-size:1rem;font-weight:600;cursor:pointer;transition:all .2s}.export-download-btn:hover{background:#16a34a}.export-download-btn:disabled{opacity:.6;cursor:not-allowed}.processing-overlay{position:absolute;top:0;left:0;right:0;bottom:0;background:#000c;display:flex;flex-direction:column;align-items:center;justify-content:center;border-radius:var(--radius)}.spinner{width:48px;height:48px;border:4px solid var(--surface-light);border-top-color:var(--primary);border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}@media (max-width: 600px){.scanner-app{padding:12px}.scanner-header{padding:24px 16px}.scanner-header h1{font-size:1.6rem}.corner-handle{width:70px;height:70px}.handle-ring{width:60px;height:60px}.handle-dot{width:24px;height:24px}.magnifier-lens{width:120px;height:120px}.magnifier-img{width:340px;height:340px}.preset-grid{grid-template-columns:repeat(2,1fr)}.action-buttons{padding:16px}.btn-primary,.btn-secondary{max-width:none;padding:14px 20px}.pages-grid{grid-template-columns:repeat(2,1fr)}.split-container{flex-direction:column;height:auto}.split-pane{height:35vh}.split-divider{width:100%;height:3px}.filter-view-toggle{flex-wrap:wrap}.view-btn{flex:1;min-width:calc(33% - 6px)}}