body{font-family:Arial,sans-serif;margin:0;background:#f5f7fb;color:#1a1f2d}.shell{max-width:1000px;margin:auto;padding:32px 20px}.toolbar{display:flex;gap:12px;align-items:center;justify-content:space-between}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:16px;margin-top:20px}.card{background:#fff;border:1px solid #dce2ed;border-radius:10px;padding:18px}.card button,#logout{font:inherit;padding:9px 12px;border:0;border-radius:6px;background:#0f6bff;color:#fff;cursor:pointer}.muted{color:#586274}.error{color:#a31621}