Minimalist high-end letter optical illusion logo design.

Design a clean high-end logo for [Brand Name], based on the letter [Core Letter]. Transform the letter into an optical illusion brand mark, using folded geometric shapes, spatial depth, precise edges, and strong negative space. The logo should convey [Symbolic Meaning] while remaining readable, minimalist, and memorable. Place a large logo mark centered on a pure warm ivory white or soft light gray background. Below it, add only the brand name "[Brand Name]", and optionally add a short subtitle "[Subtitle]". Use a minimalist black, white, and gray palette to create a high-end modern brand image design. Do not use poster layout, construction grid, annotations, extra icons, decorative small text, mockup clutter, messy 3D effects, or distorted typography.