Unify disabled appearance across all form controls

Disabled controls looked inconsistent: the SearchSelect faded (opacity-50)
while native inputs used a solid strong surface. Standardize on the faded look
(opacity-50) the user preferred, via shared constants so every form element
matches:

- DISABLED_CONTROL_CLASS (disabled:opacity-50 disabled:cursor-not-allowed) on
  the control — native inputs/select/textarea via PrimitiveWidgetsMixin, plus
  the Checkbox component (previously had no disabled style).
- DISABLED_WITHIN_CLASS (has-[:disabled]: wrapper variant) for composite
  controls like SearchSelect whose disabled state lives on an inner element.

e2e asserts a disabled SearchSelect and the Name input fade identically
(opacity 0.5) and return to 1 when enabled. CLAUDE.md documents the shared
disabled constants.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

CLAUDE.md

@@ -191,6 +191,7 @@ Pytest settings are in `pyproject.toml` under `[tool.pytest.ini_options]` (`DJAN
 - **Inline Alpine.js** is used for client-side reactivity in domain components (`GameStatusSelector`, `SessionDeviceSelector`). The pattern is `x-data="{...}"` with `fetchWithHtmxTriggers()` for PATCH API calls.
 - **No styling-at-a-distance; elements carry their own classes**: `input.css` is document bootstrapping only (Tailwind import, theme, fonts, resets) — it contains **no form/component styling and no selectors that reach across the DOM** (`#id descendant`, `form input:disabled`, etc.) to style something a component owns. An element's appearance, **including state** (`disabled:`, `has-[:disabled]:`, `focus:`), comes from utility classes on that element, emitted by its component. This keeps state composable (no specificity wars) and robust to markup edits.
 - **Forms render via `FormFields`/`AddForm`, never `form.as_div()`**: `FormFields(form, *, extras=...)` (in `primitives.py`) renders label + control + errors + row layout with their own classes; native controls get their classes from `PrimitiveWidgetsMixin` (`games/forms.py`, which stamps `INPUT/SELECT/TEXTAREA_CLASS` incl. `disabled:` variants by widget type, skipping SearchSelect + checkbox). Every form is on this path, including login (`LoginForm(PrimitiveWidgetsMixin, AuthenticationForm)`). `extras` appends a node into a named field's row (e.g. the session timestamp buttons).
-- **Disabling composite widgets**: a composite widget (e.g. `SearchSelect`) carries its `id` on a wrapper `<div>`, which has no `disabled` state — setting `.disabled` on it is a no-op. Disable the inner control (for `SearchSelect`, the `[data-search-select-search]` input); the **component owns its disabled *look*** via `has-[:disabled]:` utilities on its container class, so callers toggle only the control's `disabled`, never styles.
+- **Disabled form controls share one look**: every form element fades the same way when disabled, via the shared constants in `primitives.py` — `DISABLED_CONTROL_CLASS` (`disabled:opacity-50 disabled:cursor-not-allowed`, put on the control: native inputs via the mixin, `Checkbox`, etc.) and `DISABLED_WITHIN_CLASS` (the `has-[:disabled]:` wrapper variant, for composite controls like `SearchSelect` whose disabled state lives on an inner element). Reuse these constants; don't hand-roll a different disabled style per control.
+- **Disabling composite widgets**: a composite widget (e.g. `SearchSelect`) carries its `id` on a wrapper `<div>`, which has no `disabled` state — setting `.disabled` on it is a no-op. Disable the inner control (for `SearchSelect`, the `[data-search-select-search]` input); the wrapper fades itself via `DISABLED_WITHIN_CLASS`, so callers toggle only the control's `disabled`, never styles.
 - **Platform icons** are SVG snippets in `games/templates/icons/<slug>.html`. Add new ones there and reference them by slug in `Platform.icon`.
 - **Name compound types explicitly** — if a `tuple`, `dict`, or other compound value is passed between functions or appears in multiple signatures, give it a named type (`TypedDict`, `NamedTuple`, or a `type` alias) rather than repeating the structural annotation. This applies even to small types used in only a few places; the name carries intent that the structure cannot. Examples: `LabeledOption = tuple[str, str]` instead of repeating `tuple[str, str]` for (value, label) pairs; `RangeValues(min, max)` instead of `tuple[str, str]` for range bounds.

common/components/__init__.py

@@ -53,6 +53,8 @@ from common.components.primitives import (
     A,
     AddForm,
     ButtonGroup,
+    DISABLED_CONTROL_CLASS,
+    DISABLED_WITHIN_CLASS,
     FormFields,
     Checkbox,
     CsrfInput,
@@ -115,6 +117,8 @@ __all__ = [
     "randomid",
     "A",
     "AddForm",
+    "DISABLED_CONTROL_CLASS",
+    "DISABLED_WITHIN_CLASS",
     "FormFields",
     "StyledButton",
     "ButtonGroup",

common/components/primitives.py

@@ -46,6 +46,13 @@ _SIZE_CLASSES = {
     "xl": "px-6 py-3.5 text-base",
 }
 
+# Shared disabled appearance for every form control, so all form elements look
+# the same when disabled. Put on the control itself (DISABLED_CONTROL_CLASS) or,
+# for composite controls whose disabled state lives on an inner element (e.g.
+# SearchSelect), on the wrapper via :has() (DISABLED_WITHIN_CLASS).
+DISABLED_CONTROL_CLASS = "disabled:opacity-50 disabled:cursor-not-allowed"
+DISABLED_WITHIN_CLASS = "has-[:disabled]:opacity-50 has-[:disabled]:cursor-not-allowed"
+
 
 # ── Generic leaf elements ────────────────────────────────────────────────────
 # A whitelist of plain tags, each turned into a builder over `Element`. The
@@ -404,7 +411,8 @@ def Checkbox(
         ("value", value),
         (
             "class",
-            "rounded border-default-medium bg-neutral-secondary-medium text-brand focus:ring-brand",
+            "rounded border-default-medium bg-neutral-secondary-medium "
+            f"text-brand focus:ring-brand {DISABLED_CONTROL_CLASS}",
         ),
     ] + attributes
     if checked:

common/components/search_select.py

@@ -34,7 +34,14 @@ from typing import TypedDict
 
 
 from common.components.core import Attributes, Element, HTMLAttribute, Media, Node
-from common.components.primitives import Div, Input, Pill, Span, Template
+from common.components.primitives import (
+    DISABLED_WITHIN_CLASS,
+    Div,
+    Input,
+    Pill,
+    Span,
+    Template,
+)
 
 # Both comboboxes are wired by ts/search_select.ts (compiled to dist/).
 _SEARCH_SELECT_MEDIA = Media(js=("dist/search_select.js",))
@@ -58,17 +65,18 @@ LabeledOption = tuple[str, str]
 # with the search input. The options panel is absolute, so it sits outside the
 # flex flow. (border omitted intentionally — see if it's needed later.)
 # The widget owns its disabled appearance: when any control inside it is
-# :disabled (e.g. add_purchase.ts disabling the search input), the wrapper greys
-# itself via :has() — callers only toggle the control's `disabled`, never styles.
+# :disabled (e.g. add_purchase.ts disabling the search input), the wrapper fades
+# via :has() — the same opacity-50 a disabled native input uses (see
+# _DISABLED_CONTROL in games/forms.py), so the two look identical. Callers only
+# toggle the control's `disabled`, never styles.
 _CONTAINER_CLASS = (
     "relative flex flex-wrap items-center gap-1 p-2 "
-    "rounded-base bg-neutral-secondary-medium "
-    "has-[:disabled]:opacity-50 has-[:disabled]:cursor-not-allowed"
+    f"rounded-base bg-neutral-secondary-medium {DISABLED_WITHIN_CLASS}"
 )
 _PILLS_CLASS = "contents"
 # disabled:cursor-not-allowed matches the wrapper's cursor so hovering across
-# the whole widget stays consistent — the inner input is excluded from the
-# global disabled rule (input.css), which would otherwise have set it.
+# the whole widget stays consistent (the wrapper handles the faded look via
+# has-[:disabled]:opacity-50).
 _SEARCH_CLASS = (
     "flex-1 min-w-[8rem] border-0 bg-transparent text-sm text-heading "
     "focus:ring-0 focus:outline-hidden placeholder:text-body "

e2e/test_widgets_e2e.py

@@ -174,25 +174,27 @@ def test_add_purchase_type_game_disables_related_game_search(
     page.goto(f"{live_server.url}{reverse('games:add_purchase')}")
     wrapper = page.locator("#id_related_game")
     search = page.locator("#id_related_game [data-search-select-search]")
+    name = page.locator("#id_name")
+    opacity = "el => getComputedStyle(el).opacity"
+    bg = "el => getComputedStyle(el).backgroundColor"
 
     page.select_option("#id_type", "game")
     expect(search).to_be_disabled()
-    # The component greys itself via has-[:disabled] when the input is disabled.
-    assert wrapper.evaluate("el => getComputedStyle(el).opacity") == "0.5"
-    # The disabled inner input stays transparent (excluded from the global
-    # disabled-input surface) so the widget reads as one element, not a nested
-    # box. transparent is mode-independent, so this holds in light and dark.
-    assert (
-        search.evaluate("el => getComputedStyle(el).backgroundColor")
-        == "rgba(0, 0, 0, 0)"
-    )
-    # The inner input carries the same not-allowed cursor as the wrapper, so the
-    # cursor doesn't flicker as the pointer crosses the widget.
+    # A disabled SearchSelect must look identical to a disabled native input:
+    # both fade (opacity-50) over the same surface.
+    assert wrapper.evaluate(opacity) == "0.5"
+    assert name.evaluate(opacity) == "0.5"
+    assert wrapper.evaluate(bg) == name.evaluate(bg)
+    # The inner input stays transparent (no nested box) with the same not-allowed
+    # cursor (no flicker across the widget).
+    assert search.evaluate(bg) == "rgba(0, 0, 0, 0)"
     assert search.evaluate("el => getComputedStyle(el).cursor") == "not-allowed"
 
     page.select_option("#id_type", "dlc")
     expect(search).to_be_enabled()
-    assert wrapper.evaluate("el => getComputedStyle(el).opacity") == "1"
+    # Enabled, both return to full opacity.
+    assert wrapper.evaluate(opacity) == "1"
+    assert name.evaluate(opacity) == "1"
 
 
 def test_add_game_sync_stops_once_sort_name_edited(

games/forms.py

@@ -4,6 +4,7 @@ from django.db import transaction
 
 from common.components import (
     DEFAULT_PREFETCH,
+    DISABLED_CONTROL_CLASS,
     SearchSelect,
     SearchSelectOption,
     render,
@@ -28,12 +29,9 @@ autofocus_input_widget = forms.TextInput(attrs={"autofocus": "autofocus"})
 
 # Form controls self-style: these utility strings live on the elements (applied
 # by PrimitiveWidgetsMixin), so there is no form styling in input.css and no
-# selector reaching in to style them. The disabled: variants put state on the
-# element too — no specificity wars, robust to markup changes.
-_DISABLED_CONTROL = (
-    "disabled:bg-neutral-secondary-strong disabled:text-fg-disabled "
-    "disabled:cursor-not-allowed"
-)
+# selector reaching in to style them. The disabled appearance is the shared
+# DISABLED_CONTROL_CLASS so every form element looks the same disabled.
+_DISABLED_CONTROL = DISABLED_CONTROL_CLASS
 INPUT_CLASS = (
     "mb-3 bg-neutral-secondary-medium border border-default-medium text-heading "
     "text-sm rounded-base focus:ring-brand focus:border-brand block w-full "

games/static/base.css

@@ -3438,14 +3438,9 @@
       cursor: not-allowed;
     }
   }
-  .disabled\:bg-neutral-secondary-strong {
+  .disabled\:opacity-50 {
     &:disabled {
-      background-color: var(--color-neutral-secondary-strong);
-    }
-  }
-  .disabled\:text-fg-disabled {
-    &:disabled {
-      color: var(--color-fg-disabled);
+      opacity: 50%;
     }
   }
   .has-\[\:disabled\]\:cursor-not-allowed {