[plainprogrammer]

Closes #316

On a coarse pointer (a touch screen) the small buttons (.c-btn--sm), filter chips (.c-filter) and view-switch buttons (.c-seg button) were 40px, below the 44px every other control and every select reaches. They now reach the floor, and the icon-only ones are 44px wide too. A mouse sees no change (28px stays).

The ruling. Decision 1 of spec 075 (raise to 44px for all, or keep a reasoned exception for dense toolbars) was taken by the maintainer on 2026-11-11: option A, 44px for all, coarse pointer only. Measured before the spec (every coarse rule applied at 360px): no page overflows, no row gains a line, the collection's sticky filter bar grows 4px (173 to 177px), table rows on a phone grow about 4px each (the "…" trigger is 46px with its border, 42px before).

What changes

• CSS: one block in additions.css (components.css is the export's file and is untouched): .c-btn--sm, .c-filter, .c-seg button { min-height: var(--touch-floor) } and .c-btn--sm.c-btn--icon, .c-seg button { min-width: var(--touch-floor) }, inside @media (pointer: coarse). Same specificity as the export's 40px rule, linked after it, so it wins by source order (a re-export restores the 40px lines and still loses). The five page rules that already gave their buttons 44px at every pointer (Locations, the Decks pages, the deck zone heads, number entry's list, the scanner's adds, undos and sitting) stay. Two comments that said "40px" are corrected.
• Docs: the design system README's Touch rule (no exception now; where the rules live; add the page to the audit spec when you add a small control), one sentence each in Button, Chip, ViewSwitch, TableActions, BulkForm, Pager, AdminJobs, and the 40px sentences of FilterSelect and NumberEntry corrected. Spec 072 is frozen and unedited; the index records the supersession both ways.
• Tests: a new system spec, spec/system/small_controls_touch_floor_spec.rb (21 examples), proves the rule's order, every small control of 16 audited places at 1280px and 360px (44px high, icon-only 44px wide), the fine pointer's 28px, no overflow or overlap at 360px, no row gaining a line, nothing else resizing, and three can-fail partners. CoarsePointer (spec/support/coarse_pointer.rb) gained inject_coarse and layout_report, hoisted from spec 072's file, with rules named by selector text and stylesheet, never by value. Two of spec 072's examples and one of deck_page_spec.rb are re-premised (they assumed a 40px small button).
• No app code changed: git diff origin/main...HEAD -- app db config lib script is additions.css only (19 insertions, 5 deletions).

Verification

• Targeted run (new file, spec 072's, the deck, proxy, card page, locations examples and design_system_files_spec): 129 examples, 0 failures; the new file alone is 21 examples, 0 failures after the review's additions. The red runs before the CSS are in the commit bodies.
• bin/rubocop: no offenses; bin/yard doc: builds. The pre-push hook ran the full bin/ci and passed on 655af2fa.
• Plan and spec each had two Opus read-only reviews; the implementation review (Mode B) is SPEC-ALIGNED WITH MINOR FINDINGS, all taken (verification.md).

Screenshots

Factory data, placeholder card images. Headless Firefox has a fine pointer, so these are not photographs of a touch screen: both columns apply every (pointer: coarse) rule of the shipped stylesheet in source order; "before" leaves out the new block (the small controls stay at the export's 40px), "after" applies it. 56 JPEGs (7 pages × light/dark × 1280px/360px × before/after) are in docs/specs/075-small-controls-touch-floor/screenshots/; a selection at 360px:

	Before (40px)	After (44px)
Collection filter bar and view switch, light
Bulk bar, dark
Admin jobs, state chips, dark
Collection table, row menus, light
Deck page, proxy row menu, dark

At 1280px (a coarse pointer on a tablet, both columns), the bulk bar's buttons go from 40px to 44px:

Before	After

There is no workflow to record (a stylesheet rule); the static shots are the evidence.

Owed after merge

The plan's retirement (distill-feature state 1, housekeeping PR). Left out on purpose and named in the spec: the table's 20px checkboxes, the tab bar, inline text links and the avatar menu are other targets under 44px. spec/support/runtime_log.txt was not refreshed (the new file is heavy, about 60 page or frame loads per AC-1.5 example): refresh it only if the shard balance shows it.

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