:root{--primary: #fb7145;--primary-hover: #ffbc66;--success: #10b981;--error: #ef4444;--gray-50: #f9fafb;--gray-100: #f3f4f6;--gray-200: #e5e7eb;--gray-300: #d1d5db;--gray-400: #9ca3af;--gray-500: #6b7280;--gray-600: #4b5563;--gray-700: #374151;--gray-800: #1f2937;--gray-900: #111827;--shadow-sm: 0 1px 2px 0 rgb(0 0 0 / .05);--shadow: 0 1px 3px 0 rgb(0 0 0 / .1), 0 1px 2px -1px rgb(0 0 0 / .1);--shadow-md: 0 4px 6px -1px rgb(0 0 0 / .1), 0 2px 4px -2px rgb(0 0 0 / .1);--radius: 8px}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;background:linear-gradient(135deg,#f5f7fa,#e4e8ec);min-height:100vh;color:var(--gray-800)}.app{max-width:1100px;margin:0 auto;padding:40px 20px}.panels{display:flex;gap:24px;align-items:flex-start}.panels>.card{flex:1;margin-bottom:0}.panel-empty{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:260px;color:var(--gray-400);text-align:center;gap:12px}.header{text-align:center;margin-bottom:32px}.header h1{font-size:28px;font-weight:700;color:var(--gray-900);margin:0 0 8px}.header p{color:var(--gray-500);margin:0}.steps{display:flex;justify-content:center;gap:8px;margin-bottom:32px}.step{display:flex;align-items:center;gap:8px;padding:8px 16px;background:#fff;border-radius:20px;font-size:14px;font-weight:500;color:var(--gray-400);box-shadow:var(--shadow-sm);transition:all .3s ease}.step.active{background:var(--primary);color:#fff}.step.completed{background:var(--success);color:#fff}.step-number{width:24px;height:24px;border-radius:50%;color:currentColor;display:flex;align-items:center;justify-content:center;font-size:24px;font-weight:1200}.step.completed .step-number{background:#ffffff4d}.card{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow-md);padding:24px;margin-bottom:20px}.card-title{font-size:16px;font-weight:600;color:var(--gray-900);margin:0 0 20px;display:flex;align-items:center;gap:10px}.file-upload{position:relative;border:2px dashed var(--gray-300);border-radius:var(--radius);padding:20px;text-align:center;cursor:pointer;transition:all .2s ease;margin-bottom:12px}.file-upload:hover{border-color:var(--primary);background:#f0f5ff}.file-upload.has-file{border-color:var(--success);background:#f0fdf4}.file-upload.disabled{opacity:.6;cursor:not-allowed}.file-upload input{position:absolute;inset:0;opacity:0;cursor:pointer}.file-upload.disabled input{cursor:not-allowed}.file-icon{width:40px;height:40px;margin:0 auto 8px;background:var(--gray-100);border-radius:8px;display:flex;align-items:center;justify-content:center}.file-upload.has-file .file-icon{background:#dcfce7}.file-label{font-weight:500;color:var(--gray-700);margin-bottom:4px}.file-hint{font-size:13px;color:var(--gray-400)}.file-name{font-size:14px;color:var(--success);font-weight:500;word-break:break-all}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 24px;font-size:15px;font-weight:600;border:none;border-radius:var(--radius);cursor:pointer;transition:all .2s ease;width:100%}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover:not(:disabled){background:var(--primary-hover);transform:translateY(-1px);box-shadow:var(--shadow-md)}.btn-primary:disabled{background:var(--gray-300);cursor:not-allowed}.btn-success{background:var(--success);color:#fff}.btn-success:hover{background:#059669;transform:translateY(-1px);box-shadow:var(--shadow-md)}.error-message{background:#fef2f2;border:1px solid #fecaca;color:var(--error);padding:12px 16px;border-radius:var(--radius);margin-bottom:20px;display:flex;align-items:center;gap:10px}.success-message{background:#f0fdf4;border:1px solid #bbf7d0;color:#166534;padding:12px 16px;border-radius:var(--radius);margin-bottom:20px;display:flex;align-items:center;gap:10px}.select-wrapper{margin-bottom:20px}.select-wrapper label{display:block;font-weight:500;color:var(--gray-700);margin-bottom:8px}.select-wrapper select{width:100%;padding:12px 16px;font-size:15px;border:2px solid var(--gray-200);border-radius:var(--radius);background:#fff;cursor:pointer;transition:border-color .2s;appearance:none;background-image:url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M6 8l4 4 4-4'/%3e%3c/svg%3e");background-position:right 12px center;background-repeat:no-repeat;background-size:20px}.select-wrapper select:focus{outline:none;border-color:var(--primary)}.download-section{text-align:center;padding:20px 0}.spinner{width:20px;height:20px;border:2px solid rgba(255,255,255,.3);border-top-color:#fff;border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.divider{height:1px;background:var(--gray-200);margin:24px 0}@media(max-width:768px){.panels{flex-direction:column}}@media(max-width:480px){.app{padding:20px 16px}.header h1{font-size:22px}.steps{flex-wrap:wrap}.step{font-size:12px;padding:6px 12px}}