Web accessibility (a11y)

Designing the site to honor assistive and low-motion/high-contrast preferences such as prefers-reduced-motion, prefers-contrast, and text-wrap balance.

grounded in: recent commits 7364ba4 (pause blinking cursor under prefers-reduced-motion), 6b55d94 (tighten glow under prefers-contrast: more), f9cee6f (text-wrap: balance); doctrine priority 5 'Performance & acces