:root{color-scheme:light;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;line-height:1.5;color:#1f2937;background:#f8fafc}*{box-sizing:border-box}body{margin:0}button,input,select,textarea{font:inherit}.app-shell{max-width:920px;margin:0 auto;padding:24px}.card{background:#fff;border:1px solid #e5e7eb;border-radius:12px;padding:20px;margin-bottom:16px}.card h2{margin:0 0 8px;font-size:1.1rem}.muted{color:#6b7280;font-size:.9rem}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:none;border-radius:8px;padding:10px 16px;cursor:pointer;background:#2563eb;color:#fff}.btn:disabled{opacity:.6;cursor:not-allowed}.btn-secondary{background:#e5e7eb;color:#111827}.field{display:grid;gap:6px;margin-bottom:12px}.field label{font-size:.9rem;font-weight:600}.field input,.field select,.field textarea{border:1px solid #d1d5db;border-radius:8px;padding:10px 12px}.steps{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:20px}.step-pill{padding:6px 10px;border-radius:999px;background:#e5e7eb;font-size:.85rem}.step-pill.active{background:#dbeafe;color:#1d4ed8}.step-pill.done{background:#dcfce7;color:#166534}.code-block{background:#0f172a;color:#e2e8f0;border-radius:8px;padding:12px;overflow:auto;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.85rem;white-space:pre-wrap}.error{color:#b91c1c;background:#fef2f2;border:1px solid #fecaca;border-radius:8px;padding:10px 12px;margin-bottom:12px}.success{color:#166534;background:#f0fdf4;border:1px solid #bbf7d0;border-radius:8px;padding:10px 12px;margin-bottom:12px}.actions{display:flex;gap:8px;flex-wrap:wrap;margin-top:16px}