j3w1/theme implementation brief — number-field
theme: j3w1-theme 1.1.0  profile: default  sourceDigest: sha256-C+iD5Q7l0XPU/boMj003wPbPLBOq3C3ZM7s4OfzJ6mc=
pin: https://raw.githubusercontent.com/j3w1/theme/v1.1.0/exports/components/number-field.json
spec: spec/components/number-field.md  site: https://j3w1.github.io/theme/reference/#c-number-field
maturity: stable  priority: R1

Summary: The text-field box around a native number input with right-aligned tabular digits, an optional unit affix and two square stepper buttons that replace the host spinner.

Use the pinned approved default profile. Pending roles in that profile use-and-report their decision IDs; this does not approve them. Proposed profiles are preview-only and blocked for delivery. Heritage profiles are historical-only. Deprecated or heritage roles are blocked for new approved-profile mappings. Consume roles within their documented scope, never primitives. Release numbering does not approve profiles or tokens.
Tokens (resolved):
  root.bg               #000000  ({color.surface.input})  use
  root.border           #a3676b  ({color.border.control})  use-and-report (D-007)
  root.bg-hover         #1c0a09  ({color.interaction.hover.bg})  use
  root.border-focus     #e53935  ({color.border.active})  use
  root.ring             #e53935  ({color.interaction.focus.ring})  use
  root.ring-invalid     #ffa2a7  ({color.interaction.focus.ring-container})  use
  root.border-invalid   #e53935  ({color.status.danger.border})  use
  root.border-disabled  #7d1310  ({color.border.disabled})  use
  root.bg-disabled      #160b0b  ({color.interaction.disabled.bg})  use
  root.border-readonly  #2b0e0d  ({color.border.divider})  use-and-report (D-008)
  root.bg-readonly      #000000  ({color.surface.canvas})  use
  input.text            #e99499  ({color.text.default})  use
  input.text-disabled   #8a5559  ({color.text.disabled})  use
  input.caret           #e99499  ({color.code.caret})  use
  unit.text             #bd787d  ({color.text.muted})  use
  unit.border           #2b0e0d  ({color.border.divider})  use-and-report (D-008)
  action.text           #e99499  ({color.action.tertiary.text})  use
  action.bg-hover       #1c0a09  ({color.action.tertiary.hover-bg})  use
  action.border         #2b0e0d  ({color.border.divider})  use-and-report (D-008)
  label.text            #ffa2a7  ({color.text.bright})  use
  help.text             #bd787d  ({color.text.muted})  use
  message.text          #f73f35  ({color.status.danger.text})  use
State dependency disclosures: D-007

States: default, hover, focus-visible, invalid, invalid+focus-visible, disabled, read-only
  default: 1px {color.border.control} on {color.surface.input}; digits {color.text.default}; unit {color.text.muted}; stepper glyphs {color.action.tertiary.text} [—]
  hover: background → {color.interaction.hover.bg}; a hovered stepper button → {color.action.tertiary.hover-bg} [cursor: text on the input, pointer on the buttons]
  focus-visible: border → {color.border.active}; ring 1px dashed {color.interaction.focus.ring} at −2px on the box, or on the focused stepper button [the ring]
  invalid: border 2px {color.status.danger.border}; message with the ✕ glyph [border width 1 → 2px; glyph; `aria-invalid`]
  invalid+focus-visible: the 2px danger border and the ring in {color.interaction.focus.ring-container} at −4px [double boundary]
  disabled: text, unit and glyphs {color.text.disabled}; border {color.border.disabled}; background {color.interaction.disabled.bg}; buttons disabled [`disabled`; cursor: not-allowed]
  read-only: no box: 1px dotted {color.border.divider} bottom edge on {color.surface.canvas}; the stepper is hidden [`readonly`; dotted edge; no buttons]

Keyboard:
  Tab / Shift+Tab: Input, then the increase button, then the decrease button.
  Up / Down: Steps by the step attribute (native); Shift+Up / Shift+Down step by ten where the host binds it.
  Page Up / Page Down: Steps by ten times the step where the host binds it.
  Home / End: Jumps to min or max where the host binds it.

ARIA: native <input type="number"> with <label>; stepper buttons are separate <button>s (https://www.w3.org/WAI/ARIA/apg/patterns/spinbutton/)
Responsive: Fills its field container with min-width 0; the digits column shrinks first, the unit and stepper never wrap. RTL keeps digits left-to-right inside the input and mirrors the unit and stepper to the inline end.
Portability: native <input type="number"> with min, max and step; the host spinner is hidden and replaced with two <button type="button"> steppers labelled "Increase <label>" and "Decrease <label>" that call stepUp and stepDown; inputmode="decimal" where fractions are allowed.
  native: GTK4 SpinButton with square buttons through CSS.
  native: Qt QSpinBox or QDoubleSpinBox stylesheet with the up and down subcontrols.
  native: Terminal UI: digits in a box; + and − keys step; the unit in dim text.

Rules: use only these values; no invented colours; radius 0; borders 1px (2px emphasis); focus is a 1px dashed ring, selection is a fill;
do not restyle unrelated elements; report deviations per agents/consume.md; record theme.lock.json at the pinned revision.