:root{--bg-color:#f3f4f6;--surface-color:#fff;--border-color:#e5e7eb;--text-main:#1f2937;--text-muted:#6b7280;--accent-color:#2563eb;--accent-hover:#1d4ed8;--success-color:#10b981;--error-color:#ef4444;--warning-color:#f59e0b;--font-family:"Inter", sans-serif;--radius:6px}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-family);background:var(--bg-color);color:var(--text-main);-webkit-font-smoothing:antialiased;flex-direction:column;min-height:100vh;padding:2rem 2rem 5rem;display:flex;overflow-x:hidden}#app{flex-direction:column;gap:1.5rem;width:100%;max-width:1000px;margin:0 auto;display:flex}.login-container{background:var(--surface-color);border:1px solid var(--border-color);border-radius:var(--radius);text-align:center;width:100%;max-width:400px;margin:10vh auto;padding:3rem 2rem;box-shadow:0 4px 6px -1px #0000000d,0 2px 4px -1px #00000008}.login-container h2{color:var(--text-main);margin-bottom:.5rem;font-size:1.5rem}.login-container p{color:var(--text-muted);margin-bottom:2rem;font-size:.9rem}.form-group{text-align:left;margin-bottom:1.25rem}.form-group label{color:var(--text-main);margin-bottom:.5rem;font-size:.875rem;font-weight:500;display:block}.form-group input{border:1px solid var(--border-color);border-radius:var(--radius);outline:none;width:100%;padding:.5rem .75rem;font-family:inherit;font-size:1rem;transition:border-color .2s}.form-group input:focus{border-color:var(--accent-color);box-shadow:0 0 0 2px #2563eb33}header{border-bottom:1px solid var(--border-color);margin-bottom:1rem;padding-bottom:1.5rem}header h1{color:var(--text-main);margin-bottom:.25rem;font-size:1.75rem;font-weight:600}header p{color:var(--text-muted);font-size:1rem}.panel{background:var(--surface-color);border:1px solid var(--border-color);border-radius:var(--radius);padding:1.5rem;box-shadow:0 1px 3px #0000000d}.panel-title{border-bottom:1px solid var(--border-color);color:var(--text-main);margin-bottom:1rem;padding-bottom:.75rem;font-size:1.1rem;font-weight:600}.global-settings{align-items:center;gap:1rem;margin-bottom:.5rem;display:flex}.global-settings label{font-size:.9rem;font-weight:500}.actions{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:1rem;margin-top:1rem;margin-bottom:1rem;display:flex}.primary-actions,.mass-actions{flex-wrap:wrap;align-items:center;gap:.75rem;display:flex}.btn{font-family:var(--font-family);cursor:pointer;border-radius:var(--radius);border:1px solid #0000;justify-content:center;align-items:center;gap:.5rem;padding:.5rem 1rem;font-size:.875rem;font-weight:500;transition:all .2s;display:inline-flex}.btn:disabled{opacity:.5;cursor:not-allowed;pointer-events:none}.btn.primary{background:var(--accent-color);color:#fff}.btn.primary:hover{background:var(--accent-hover)}.btn.secondary{color:var(--text-main);border-color:var(--border-color);background:#fff}.btn.secondary:hover{background:#f9fafb}.btn.success{background:var(--success-color);color:#fff}.btn.success:hover{background:#059669}.table-container{border:1px solid var(--border-color);border-radius:var(--radius);background:var(--surface-color);overflow-x:auto}.data-table{border-collapse:collapse;text-align:left;width:100%}.data-table th,.data-table td{border-bottom:1px solid var(--border-color);vertical-align:middle;padding:.75rem 1rem;font-size:.875rem}.data-table th{color:var(--text-muted);background:#f9fafb;font-weight:600}.data-table tbody tr:hover{background:var(--bg-color)}.data-table tbody tr.selected-row{background:#eff6ff}.data-table tbody tr:last-child td{border-bottom:none}.checkbox-col{text-align:center;width:40px}.checkbox-col input[type=checkbox]{cursor:pointer;width:16px;height:16px;accent-color:var(--accent-color)}.empty-row td{text-align:center;color:var(--text-muted);padding:3rem 1rem!important}.signature-selector{padding-top:.25rem}.sig-label{color:var(--text-muted);margin-bottom:.75rem;font-size:.875rem}.sig-presets{flex-wrap:wrap;align-items:flex-end;gap:.75rem;display:flex}.sig-preset-card{border:2px solid var(--border-color);border-radius:var(--radius);cursor:pointer;min-width:120px;font-family:var(--font-family);background:#fff;flex-direction:column;align-items:center;gap:.4rem;padding:.75rem 1rem;transition:all .2s;display:flex}.sig-preset-card:hover{border-color:var(--accent-color);background:#eff6ff}.sig-preset-card.selected{border-color:var(--success-color);background:#f0fdf4}.sig-preview-img{object-fit:contain;max-width:160px;height:48px}.sig-preset-label{color:var(--text-muted);font-size:.78rem}.sig-preset-card.selected .sig-preset-label{color:var(--success-color);font-weight:600}.sig-upload-card{border:2px dashed var(--border-color);border-radius:var(--radius);background:#fff;flex-direction:column;justify-content:center;align-items:center;min-width:120px;min-height:76px;padding:.75rem 1rem;display:flex}.sig-active{border-radius:var(--radius);background:#f0fdf4;border:1px solid #86efac;align-items:center;gap:.75rem;margin-top:1rem;padding:.6rem 1rem;display:flex}.sig-active-preview{object-fit:contain;max-width:120px;height:36px}.sig-active-name{color:#047857;font-size:.85rem;font-weight:500}.file-upload-wrapper{cursor:pointer;display:inline-block;position:relative}.file-upload-wrapper input[type=file]{opacity:0;cursor:pointer;width:100%;height:100%;position:absolute;top:0;left:0}.file-upload-btn{border:1px dashed var(--border-color);border-radius:var(--radius);color:var(--text-muted);white-space:nowrap;background:#fff;align-items:center;gap:.4rem;max-width:170px;padding:.4rem .75rem;font-size:.85rem;transition:all .2s;display:flex}.file-upload-btn .filename{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.file-upload-wrapper:hover .file-upload-btn{border-color:var(--accent-color);color:var(--accent-color);background:#eff6ff}.file-upload-btn.drag-over{border-color:var(--accent-color);background:#eff6ff;transform:scale(1.02);box-shadow:0 0 0 4px #2563eb1a}.file-upload-btn.file-selected{border-color:var(--success-color);color:var(--success-color);background:#f0fdf4;border-style:solid}.badge{border-radius:999px;align-items:center;gap:.25rem;padding:.2rem .5rem;font-size:.75rem;font-weight:600;display:inline-flex}.badge.idle{color:var(--text-muted);background:#f3f4f6}.badge.loading{color:#b45309;background:#fef3c7}.badge.success{color:#047857;background:#d1fae5}.badge.error{color:#b91c1c;background:#fee2e2}.spinner{border:2px solid;border-top-color:#0000;border-radius:50%;width:10px;height:10px;animation:.8s linear infinite spin}.actions-cell{gap:.5rem;display:flex}.btn-icon{border-radius:var(--radius);color:var(--text-muted);cursor:pointer;background:0 0;border:1px solid #0000;justify-content:center;align-items:center;width:30px;height:30px;transition:all .2s;display:flex}.btn-icon:hover{background:var(--bg-color);color:var(--text-main)}.btn-icon.delete:hover{color:var(--error-color);background:#fee2e2}.btn-icon.process:hover{color:var(--accent-color);background:#eff6ff}.btn-icon.retry:hover{color:var(--warning-color);background:#fffbeb}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.error-text{color:var(--error-color);margin-top:.2rem;font-size:.75rem;display:block}