:root{font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;color:#111827;background:#f3f4f6}*{box-sizing:border-box}body{margin:0}.container{max-width:900px;margin:24px auto;padding:0 16px}.container.narrow{max-width:520px}.toolbar{display:flex;justify-content:flex-end;margin-bottom:16px}.panel{background:#fff;border-radius:12px;padding:16px;margin-bottom:16px;box-shadow:0 1px 2px #0f172a14}form{display:grid;gap:12px}label{display:grid;gap:8px;font-size:14px}input,textarea,button{font:inherit}input,textarea{width:100%;border:1px solid #d1d5db;border-radius:8px;padding:10px 12px;background:#fff}textarea{resize:vertical}button{border:0;border-radius:8px;padding:10px 12px;background:#2563eb;color:#fff;cursor:pointer}button.secondary{background:#4b5563}button:disabled{opacity:.65;cursor:default}.alert{border-radius:8px;padding:10px 12px;margin-bottom:12px}.alert.success{background:#dcfce7;color:#166534}.alert.error{background:#fee2e2;color:#991b1b}.row{display:flex;flex-wrap:wrap;gap:8px}.hint{margin-top:-4px;margin-bottom:6px;font-size:13px;color:#374151}