Masthead scale: a long title that runs well past sixty-four characters
The long bucket — the smallest step of the scale, with looser leading and text-wrap: pretty instead of balance. No display_title is set here, so the H1 falls back to this full title.
Past 64 characters the title takes the smallest step of the scale and switches wrapping strategy.
Two things change beyond size. Leading opens from 0.98 to 1.03, because five lines of near-solid leading reads as a block rather than a headline. And text-wrap switches from balance to pretty, because browsers stop balancing past roughly six lines — so on exactly the titles that needed help most, balance was quietly doing nothing.
This is the fallback case: no display_title is set, so the masthead renders the full search-facing title. See masthead-display-title for the same length with the field populated.
Why this matters
Before the scale was bucketed, the size was clamp(56px, 7.2vw, 124px) against a column fixed at 720px — so characters-per-line shrank as the screen grew. A 71-character title took six lines at 1920px and filled the entire first screen.