Create a realistic and visually appealing cover for an online course module on "Step-by-Step Guide to Buying Real Estate." The cover should feature a high-quality, photo-realistic image that clearly represents a step-by-step process for buying real estate. Design the image to show a visual path or roadmap with distinct stages, each representing a key step: searching for properties, consulting with agents, signing documents, and receiving keys. Use a series of interconnected icons or milestones along the path to illustrate these stages. Incorporate visual elements like property listings, contracts, and keys along the route. Use a sophisticated color palette that conveys professionalism and opportunity, focusing on dark blue (Navy Blue), white, and gold. The style should be clean, minimalistic, and slightly futuristic, with the step-by-step path as the focal point. --ar 16:9  --s 750