A modern, high‑contrast hero banner for a tech blog about Chainguard, featuring a stylized shield made of interlocking code brackets, a sleek padlock icon centered on the shield, and subtle abstract circuitry patterns in the background. Use a deep teal‑blue color palette with bright cyan accents, soft gradient lighting from top‑left to bottom‑right, and clean minimal‑ist typography space for a headline. Render in a crisp digital illustration style, 16:9 aspect ratio. See more