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Set the secret code.
Type a code (a coupon, a phrase, anything). The site will scatter every character across the menu pages — each character gets its own little "yarn tag" with a position number. Visitors collect them in order. When they've found them all, the full code is revealed.
Spaces are skipped. Try 8–16 characters for a fun hunt.
Tip: after saving, open the home page (or any nav link)
in another tab. You'll see a paper tag floating somewhere on the page
with one character of the code and its order number. Click it — the
decoder pouch in the bottom-right will fill in.