The doubled edge was not the textarea's alone -- it was on every field,
and the previous commit's explanation of why the inputs were exempt was
wrong. I asserted that at 999px the ring and the outline clamp to the
same curve without measuring it. They do not:
ring 999px -> a 24px circle (half the field's height)
outline 999px -> a 12x24 ellipse (leading piece width x half height)
The ring is one continuous rounded rectangle over the whole field; the
outline beneath it is split into three pieces and its leading piece is
12px wide. No radius makes a full-width curve agree with a 12px-wide
one, so there was nothing to tune -- the ring had to go. It was mine,
lifted from the library's `gradient` theme onto a shell that does not
use it, and `alternative` already expresses focus through the outline's
own colour.
The textarea's radius goes back to 1.25rem, since it was only lowered to
dodge the clamp.
Verified at 3x, one curve per field: valid+focus violet, error+focus
red, no ring anywhere.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
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