Premium 16:9 editorial diagram illustration of a secure commerce API implementation lifecycle, four large connected stages across a dark navy background: product catalogue database and SKUs; developer sandbox with code testing window; secure API gateway with transaction arrows; production checkout and shipping fulfillment confirmation. Clean geometrical system architecture, strong structured layout, polished high-end enterprise technical publication style, teal glowing connections, white and warm orange accents, no text, no letters, no logos, no watermarks.