The letters are the foil — a brushed-brass fill with a specular crest that sweeps across on arrival, the way light catches a hot-foil-stamped wordmark.
Hover the wordmark (or any foil below) to catch the light again.
Every foil subject is real, crawlable text — the shimmer only changes how the metal catches light, never what the type says.
Scroll on — the next wordmark lights the moment it enters view.
Past the foil, the rest of the site continues — no rAF is left running.