Improve and Organize the HTML Structure Using Appropriate Tags

**Evaluate** and **refine the HTML structure** of the project to establish a clear, maintainable, and scalable foundation for upcoming CSS styling and JavaScript functionality. Begin by thoroughly reviewing the existing HTML in the starter project, assessing **how elements are organized** and identifying areas where the structure can be clarified or improved.

Your goal is to **reorganize the markup into a well‑defined hierarchy**, grouping related interface components and applying meaningful, semantic containers to clearly distinguish each section of the UI. This includes ensuring that form steps, navigation controls, and content areas are logically separated and easy to target, both visually and programmatically.

Focus on creating a structure that is intuitive, consistent, and easy to navigate, enabling smoother development in later stages. _Avoid modifying the visual design_ or _adding new features at this point_. The purpose of this task is to ensure the HTML foundation is clean, organized, and ready for styling and interactive behavior in the next phases of the project.