:root{font-family:Inter,system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}html,body{margin:0;padding:0;height:100%;overflow:hidden}#root{height:100%}.multi-file-upload{width:100%;max-width:600px;margin:0 auto}.upload-dropzone{border:2px dashed var(--border-color, #cbd5e1);border-radius:12px;padding:48px 24px;text-align:center;cursor:pointer;transition:all .2s ease;background:var(--bg-secondary, #f8fafc)}.upload-dropzone:hover{border-color:var(--primary-color, #3b82f6);background:var(--bg-hover, #f1f5f9)}.upload-dropzone.drag-over{border-color:var(--primary-color, #3b82f6);background:var(--primary-bg, #eff6ff);border-style:solid}.upload-dropzone.disabled{opacity:.6;cursor:not-allowed}.dropzone-content{display:flex;flex-direction:column;align-items:center;gap:8px}.dropzone-icon{color:var(--text-muted, #64748b);margin-bottom:8px}.dropzone-text{font-size:1.125rem;font-weight:500;color:var(--text-primary, #1e293b);margin:0}.dropzone-subtext{font-size:.875rem;color:var(--text-muted, #64748b);margin:0}.dropzone-formats{font-size:.75rem;color:var(--text-muted, #94a3b8);margin:8px 0 0}.file-list-container{margin-top:24px;border:1px solid var(--border-color, #e2e8f0);border-radius:8px;background:var(--bg-primary, #ffffff);overflow:hidden}.file-list-header{display:flex;justify-content:space-between;align-items:center;padding:12px 16px;background:var(--bg-secondary, #f8fafc);border-bottom:1px solid var(--border-color, #e2e8f0)}.file-count{font-weight:500;color:var(--text-primary, #1e293b)}.clear-all-btn{background:none;border:none;color:var(--text-muted, #64748b);cursor:pointer;font-size:.875rem;padding:4px 8px;border-radius:4px;transition:all .15s ease}.clear-all-btn:hover:not(:disabled){color:var(--danger-color, #dc2626);background:var(--danger-bg, #fef2f2)}.clear-all-btn:disabled{opacity:.5;cursor:not-allowed}.file-list{max-height:240px;overflow-y:auto}.file-item{display:flex;align-items:center;gap:12px;padding:12px 16px;border-bottom:1px solid var(--border-light, #f1f5f9);background:var(--bg-primary, #ffffff);cursor:grab;transition:background .15s ease}.file-item:last-child{border-bottom:none}.file-item:hover{background:var(--bg-hover, #f8fafc)}.file-item.dragging{opacity:.5;background:var(--primary-bg, #eff6ff)}.file-order{display:flex;flex-direction:column;align-items:center;gap:2px;min-width:32px}.order-btn{background:none;border:none;color:var(--text-muted, #94a3b8);cursor:pointer;font-size:.625rem;padding:2px 4px;line-height:1;transition:color .15s ease}.order-btn:hover:not(:disabled){color:var(--primary-color, #3b82f6)}.order-btn:disabled{opacity:.3;cursor:not-allowed}.order-number{font-size:.75rem;font-weight:600;color:var(--text-muted, #64748b);min-width:16px;text-align:center}.file-info{flex:1;min-width:0;display:flex;flex-direction:column;gap:2px}.file-name{font-size:.875rem;font-weight:500;color:var(--text-primary, #1e293b);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.file-size{font-size:.75rem;color:var(--text-muted, #64748b)}.remove-btn{background:none;border:none;color:var(--text-muted, #94a3b8);cursor:pointer;font-size:1rem;padding:4px 8px;border-radius:4px;transition:all .15s ease}.remove-btn:hover:not(:disabled){color:var(--danger-color, #dc2626);background:var(--danger-bg, #fef2f2)}.remove-btn:disabled{opacity:.5;cursor:not-allowed}.file-summary{padding:12px 16px;background:var(--bg-secondary, #f8fafc);border-top:1px solid var(--border-color, #e2e8f0)}.total-size{font-size:.875rem;font-weight:500;color:var(--text-primary, #1e293b)}.total-size.over-limit{color:var(--danger-color, #dc2626)}.warning-message{margin-top:8px;padding:8px 12px;background:var(--warning-bg, 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