!nb Design a clean, modern, flat vector logo icon for an It…

!nb Design a clean, modern, flat vector logo icon for an Italian tech newsletter called “La Cipolla Digitale”. Create a stylized onion made of 6–8 concentric layers (like topographic contour rings). Minimal, geometric, crisp outline, balanced negative space, scalable, high contrast. Subtle “digital” feel: optionally add 1–2 tiny circuit nodes or short trace lines integrated into one ring (very subtle, not busy). Centered composition on a square canvas.
Color palette: deep green (#0F3D2E) as primary; warm off‑white (#F5F1E6) background; optional small accent gold (#C9A227) used sparingly (e.g., one tiny node).
No text, no letters, no gradients, no shadows, no 3D, no mockups, no photo, no watermark.