:root{--bg-primary: #0a0e17;--bg-secondary: #111827;--bg-card: #1a2236;--bg-card-hover: #1f2a42;--bg-input: #0f172a;--text-primary: #f1f5f9;--text-secondary: #94a3b8;--text-muted: #64748b;--accent: #3b82f6;--accent-hover: #2563eb;--accent-glow: rgba(59, 130, 246, .3);--success: #10b981;--success-bg: rgba(16, 185, 129, .1);--warning: #f59e0b;--danger: #ef4444;--border: #1e293b;--border-light: #334155;--radius: 12px;--radius-sm: 8px;--radius-xs: 6px;--shadow: 0 4px 24px rgba(0, 0, 0, .3);--shadow-lg: 0 8px 40px rgba(0, 0, 0, .4);--transition: .2s cubic-bezier(.4, 0, .2, 1);--font: "Inter", -apple-system, BlinkMacSystemFont, sans-serif}*{margin:0;padding:0;box-sizing:border-box}body{font-family:var(--font);background:var(--bg-primary);color:var(--text-primary);min-height:100vh;-webkit-font-smoothing:antialiased}.app{max-width:1200px;margin:0 auto;padding:32px 24px}.app-header{text-align:center;margin-bottom:48px}.app-header h1{font-size:2rem;font-weight:800;letter-spacing:-.5px;background:linear-gradient(135deg,#3b82f6,#8b5cf6);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;margin-bottom:8px}.app-header p{color:var(--text-secondary);font-size:.95rem}.app-actions{display:flex;gap:12px;justify-content:center;margin-top:16px}.btn{display:inline-flex;align-items:center;gap:8px;padding:10px 20px;border:none;border-radius:var(--radius-sm);font-family:var(--font);font-size:.875rem;font-weight:600;cursor:pointer;transition:all var(--transition);text-decoration:none}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:linear-gradient(135deg,#3b82f6,#2563eb);color:#fff;box-shadow:0 2px 12px var(--accent-glow)}.btn-primary:hover:not(:disabled){transform:translateY(-1px);box-shadow:0 4px 20px var(--accent-glow)}.btn-success{background:linear-gradient(135deg,#10b981,#059669);color:#fff;box-shadow:0 2px 12px #10b9814d}.btn-success:hover:not(:disabled){transform:translateY(-1px);box-shadow:0 4px 20px #10b98166}.btn-outline{background:transparent;color:var(--text-secondary);border:1px solid var(--border-light)}.btn-outline:hover:not(:disabled){background:var(--bg-card);color:var(--text-primary);border-color:var(--accent)}.btn-sm{padding:6px 12px;font-size:.8rem}.file-upload{border:2px dashed var(--border-light);border-radius:var(--radius);transition:all var(--transition);background:var(--bg-card);overflow:hidden}.file-upload:hover,.file-upload.dragging{border-color:var(--accent);background:#3b82f60d;box-shadow:0 0 30px var(--accent-glow)}.file-upload.has-file{border-color:var(--success);border-style:solid}.file-upload-label{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:48px 24px;cursor:pointer;text-align:center;gap:12px}.upload-icon{color:var(--text-muted);transition:color var(--transition)}.file-upload:hover .upload-icon,.file-upload.dragging .upload-icon{color:var(--accent)}.file-upload.has-file .upload-icon{color:var(--success)}.upload-text p{color:var(--text-primary);font-size:.95rem}.upload-text .upload-hint{color:var(--text-muted);font-size:.8rem;margin-top:4px}.upload-text .file-name{color:var(--success);font-weight:600}.data-preview{margin-top:32px;animation:fadeIn .3s ease}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.preview-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}.preview-header h2{display:flex;align-items:center;gap:8px;font-size:1.1rem;font-weight:700;color:var(--text-primary)}.badge{background:var(--accent);color:#fff;font-size:.7rem;font-weight:600;padding:2px 8px;border-radius:999px}.selected-count{color:var(--text-muted);font-size:.85rem}.table-container{border-radius:var(--radius);border:1px solid var(--border);overflow-x:auto;background:var(--bg-card)}table{width:100%;border-collapse:collapse;font-size:.85rem}thead th{background:var(--bg-secondary);color:var(--text-secondary);font-weight:600;text-transform:uppercase;font-size:.7rem;letter-spacing:.5px;padding:10px 12px;text-align:left;border-bottom:1px solid var(--border);white-space:nowrap;position:sticky;top:0}thead th.numeric{text-align:right}tbody td{padding:8px 12px;border-bottom:1px solid var(--border);white-space:nowrap}tbody td.numeric{text-align:right;font-variant-numeric:tabular-nums}tbody td.editable{cursor:text;transition:background var(--transition)}tbody td.editable:focus{background:var(--bg-input);outline:2px solid var(--accent);outline-offset:-2px;border-radius:2px}tbody tr:hover{background:var(--bg-card-hover)}tbody tr.selected{background:#3b82f614}.checkbox-col{width:40px;text-align:center}.row-num{color:var(--text-muted);font-size:.75rem;width:32px}input[type=checkbox]{accent-color:var(--accent);width:16px;height:16px;cursor:pointer}.generate-section{margin-top:24px;display:flex;gap:12px;justify-content:flex-end;align-items:center}.generate-section .progress-text{color:var(--text-secondary);font-size:.85rem}.error-banner{background:#ef44441a;border:1px solid rgba(239,68,68,.3);border-radius:var(--radius-sm);padding:12px 16px;margin-top:16px;color:var(--danger);font-size:.875rem;display:flex;align-items:center;gap:8px;animation:fadeIn .3s ease}.spinner{display:inline-block;width:16px;height:16px;border:2px solid rgba(255,255,255,.3);border-radius:50%;border-top-color:#fff;animation:spin .7s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}@media(max-width:768px){.app{padding:20px 16px}.app-header h1{font-size:1.5rem}.file-upload-label{padding:32px 16px}.generate-section{flex-direction:column;align-items:stretch}.app-actions{flex-direction:column;align-items:center}}