:root{--bg-primary: #0f1117;--bg-secondary: #1a1d27;--bg-card: #1e2130;--bg-hover: #252836;--border: #2a2d3a;--text-primary: #e8eaed;--text-secondary: #9aa0a6;--text-muted: #5f6368;--accent: #6366f1;--accent-hover: #818cf8;--success: #22c55e;--warning: #eab308;--error: #ef4444;--info: #3b82f6;--radius: 8px;--radius-lg: 12px;--shadow: 0 2px 8px rgba(0,0,0,.3)}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,sans-serif;background:var(--bg-primary);color:var(--text-primary);line-height:1.6;overflow-x:hidden}.app-layout{display:flex;min-height:100vh}.sidebar{width:300px;min-width:300px;background:var(--bg-secondary);border-right:1px solid var(--border);padding:20px;overflow-y:auto;height:100vh;position:sticky;top:0}.main-content{flex:1;padding:24px 32px;overflow-y:auto}.app-header{margin-bottom:24px}.app-header h1{font-size:24px;font-weight:700;background:linear-gradient(135deg,var(--accent),#a855f7);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.subtitle{color:var(--text-muted);font-size:13px;margin-top:4px}.card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:20px;margin-bottom:16px;box-shadow:var(--shadow)}.card.center{text-align:center}.card h3{font-size:16px;margin-bottom:16px;color:var(--text-primary)}.dropzone{border:2px dashed var(--border);border-radius:var(--radius-lg);padding:40px 20px;text-align:center;cursor:pointer;transition:all 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10px;text-align:left;border-bottom:1px solid var(--border);white-space:nowrap}.preview-table th{background:var(--bg-hover);color:var(--text-secondary);font-weight:600;position:sticky;top:0}.hint{font-size:12px;color:var(--text-muted);margin-top:8px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;font-size:14px;font-weight:500;padding:10px 20px;border:none;border-radius:var(--radius);cursor:pointer;transition:all .15s;text-decoration:none}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--accent);color:#fff}.btn-primary:hover:not(:disabled){background:var(--accent-hover)}.btn-ghost{background:transparent;color:var(--text-secondary);border:1px solid var(--border)}.btn-sm{font-size:12px;padding:6px 12px}.btn-lg{font-size:16px;padding:14px 32px}.btn-row{display:flex;gap:8px;margin-top:8px}.checkpoint-alert{display:flex;gap:16px;align-items:center;background:#fbbf2414;border:1px solid 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var(--border);border-radius:var(--radius-lg)}.metric-value{font-size:28px;font-weight:700;background:linear-gradient(135deg,var(--accent),#a855f7);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.metric-label{font-size:12px;color:var(--text-muted);margin-top:4px}.result-footer{display:flex;justify-content:space-between;align-items:center;padding-top:16px;border-top:1px solid var(--border);color:var(--text-secondary);font-size:13px}.download-btn{font-size:15px!important;padding:12px 24px!important}.config-panel h3{font-size:18px;margin-bottom:20px;color:var(--text-primary)}.config-panel h4{font-size:14px;color:var(--text-secondary);margin:16px 0 10px}.config-panel section{margin-bottom:4px}.config-panel hr{border:none;border-top:1px solid var(--border);margin:16px 0}.config-panel input:disabled,.config-panel select:disabled,.config-panel textarea:disabled{opacity:.4;cursor:not-allowed}.config-panel 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.15s}.config-textarea:focus{border-color:var(--accent)}.label-hint{font-weight:400;color:var(--text-muted);font-size:10px}.section-divider{height:1px;background:var(--border);margin:14px 0}.field-requirements{margin-top:16px}.field-requirements details{cursor:pointer}.field-requirements summary{color:var(--text-muted);font-size:13px;padding:4px 0}.field-requirements table{width:100%;border-collapse:collapse;margin-top:8px;font-size:12px}.field-requirements th,.field-requirements td{padding:6px 10px;text-align:left;border:1px solid var(--border)}.field-requirements th{background:var(--bg-hover);color:var(--text-secondary)}.error-card{border-color:var(--error)!important}.error-card h3{color:var(--error)}.error-card p{color:var(--text-secondary);margin-bottom:16px}.paused-card{border-color:var(--warning)!important}.paused-card h3{color:var(--warning)}.paused-card p{color:var(--text-secondary);margin-bottom:12px}.paused-stats{display:flex;flex-wrap:wrap;gap:16px;margin:12px 0}.paused-stats 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toastSlideIn{0%{opacity:0;transform:translate(40px)}to{opacity:1;transform:translate(0)}}.toast-icon{flex-shrink:0;font-size:18px;line-height:1}.toast-msg{flex:1;line-height:1.4}.toast-success{background:#059669}.toast-error{background:#dc2626}.toast-warning{background:#d97706}.toast-info{background:#2563eb}.btn-danger-outline{background:transparent;color:var(--danger, #e74c3c);border:1px solid rgba(231,76,60,.35)}.btn-danger-outline:hover:not(:disabled){background:#e74c3c1f;border-color:#e74c3c99}.btn-ghost{background:transparent;color:var(--text-muted);border:1px solid transparent}.btn-ghost:hover:not(:disabled){background:var(--bg-hover);color:var(--text-primary)}