Website Design Refresh Needed

My current site works well from a functional standpoint, but its visual identity feels dated, so I want a complete design refresh. The focus is strictly on updating the look and feel—modernising colour usage, layout rhythm, and typography while keeping all existing content and back-end logic intact.

Here’s what I need from you:
• An initial audit of the existing interface highlighting pain points and quick wins
• Two or more high-fidelity mock-ups that show a contemporary, mobile-responsive direction
• Final design assets (style guide, component library, editable source files in Figma, Adobe XD, or Sketch) ready for hand-off to my developer

In your bid, include a detailed project proposal outlining your process, timeline, and milestones so I can see exactly how you plan to bring the new design to life. Links to relevant redesigns you’ve handled are welcome, but the proposal itself is the key factor in my selection.