Plan step 36 (navigation group, second batch): <x-navigation-rail>'s,
<x-navigation-rail-item>'s and <x-navigation-rail-section>'s class
lists move into navigation-rail.css, navigation-rail-item.css and
navigation-rail-section.css, keyed on data-md-navigation-rail (the
mode, data-md-width, data-md-align, data-md-hide-when-collapsed,
data-md-divider, data-md-fill, data-md-open), data-md-navigation-rail-
item (data-md-active) and data-md-navigation-rail-section. Every
Tailwind wrapper class in the view — the menu row's centring padding,
the FAB row, the two swapped menu glyphs, the brand's visibility —
becomes a hook the stylesheet draws instead; the menu button itself
renders the shared md-state-layer/md-focus-ring/md-touch-target
classes (N-01's pattern) since it draws its own layer on itself, not a
child. `<x-icon>` and `<x-badge>` take size and floating props instead
of size/position classes; a small data-md-navigation-icon hook (the
shared navigation-item.css) replaces the ad hoc "relative inline-flex"
wrapper a floating badge anchors to.
`rail-collapsed` (a Tailwind @custom-variant, forbidden in Phase F) is
reproduced as plain selectors, branch for branch: the three width-
independent conditions (a fixed collapsed mode; a collapsible rail the
visitor collapsed and not open; a modal rail not open) merge into one
:where() group, provably the same match set as three separate rules
since :where(A, B, C) on an element is true exactly when :where(A) or
:where(B) or :where(C) is; the four width-gated conditions stay
separate media blocks, since CSS cannot merge different `@media`
queries. Every rem length becomes px, since these are dp-based M3
tokens, not a text measure (unlike <x-pane>'s rem widths). The FAB
overrides for a rail's header — elevation 0 (N-03), morphing into an
extended FAB instead of swapping two by display (N-23) — move from
unlayered into this file's own material.components, like toolbar.css's
FAB override: fab.css's `[data-md-fab]` is one attribute, so a doubled
selector here always outranks it without needing to sit outside the
layer.
navigation.js: the arriving-indicator stylesheet and every code comment
follow the new hooks; resources/css/components/navigation.css is
deleted (nothing imports it any more) and its line in tailwind.css with
it. Behaviour is unchanged except one thing Tailwind's `rail-collapsed:`
variant could do that plain CSS in this shape cannot: it is gone for
consuming applications too, since the definition lived only in the file
this commit removes. The development skill's guidance for it is
rewritten to point at navigation-rail.css's own selectors instead of
teaching a Tailwind variant that no longer exists.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Qwx5USif3wFFmxtHg5U1g9
Plan step 36 (actions). <x-toast> renders data-md-toast with
data-md-position, its snackbar data-md-toast-snackbar with a bound
data-md-two-line, data-md-toast-content with a bound
data-md-toast-wrap, and data-md-toast-action/-dismiss; no class list.
toast.css draws SnackbarTokens' inverse surface, 48/68px container,
the two 40px controls reaching 48px targets with their own state
layer and touch target (ACT-18), the enter transition and the
position-start margin that grows from medium.
data-toast becomes data-md-toast-snackbar and data-toast-action
becomes data-md-toast-action (snackbar.js, navigation.js's
hide-on-scroll guard, NavigationBarTest, CommunicationTest); a new
data-md-toast-dismiss hook names the close button. ToastTest is
rewritten on the hooks and ComponentStylesheet. CommunicationTest
gains the owed tests: an actioned snackbar past the default timeout,
Escape on a focused one, the live region before any message, and the
two-line height with Alt+G reaching the action from elsewhere on the
page.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Qwx5USif3wFFmxtHg5U1g9
Plan step 25 (navigation Missing): M3's "Expanded behavior | Hide when
collapsed" was only implicit below `medium` in the adaptive rail.
`<x-navigation-rail hide-when-collapsed>` (collapsible and adaptive rails) takes
the rail out of the layout when it is collapsed; `$store.rail.show()` from an
app-bar menu button brings it back expanded over a scrim, sliding in, and its
own menu button docks it again. It does not reach the bands where the window,
not the visitor, collapses a rail (below `medium` for collapsible, `medium` for
adaptive), since M3's collapsed rail may never hide. Every `rail-collapsed`
branch now stops while the rail is open. `<x-app-shell hide-rail-when-collapsed>`
exposes it.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Qwx5USif3wFFmxtHg5U1g9
Plan step 25 (navigation Missing): M3's "hides on scroll-down, reappears on
scroll-up" had no implementation. `<x-navigation-bar hide-on-scroll>` slides the
bar out on the default spatial spring — an instant swap under reduced motion,
which zeroes the duration token — and never while a snackbar, a bottom sheet or
a drawer is anchored to its edge; focus reaching the bar brings it back.
`<x-app-shell hide-bar-on-scroll>` picks it, and --material-bottom-bar follows
the bar down and up so a `fab` button and the snackbar keep their offsets.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Qwx5USif3wFFmxtHg5U1g9
Plan step 17, on N-06, N-07 and C-07. The shell now changes at 600, 840 and
1200 and nowhere else: a compact window keeps the navigation bar and the modal
rail; `medium` (600-839) gets the collapsed rail in the layout and no bar;
`expanded` (840-1199) gets a standard rail, collapsed, whose menu button
expands it in place rather than over a scrim; `large` and above start it
expanded, which is what M3 prefers once there is room.
`data-rail` alone could not say "collapsed at expanded, expanded at large",
since it carries `rail.default` for a visitor who never chose. <x-theme-script>
now also writes `data-rail-auto` while nothing is stored, the `rail-collapsed:`
variant reads it in the 840-1199 band, and `$store.rail.auto` mirrors it for
Alpine; the first press of the menu button drops it, so a remembered choice
still wins in both bands. `rail.default` and the rest of `$store.rail` are
unchanged, and the attribute rides through `wire:navigate` with the others.
`--material-margin` carries M3's window margin on the shell -- 16px compact,
24px from `medium` -- and the content region is padded with it, so the showcase
pages drop their own gutters.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Qwx5USif3wFFmxtHg5U1g9
Plan step 16. `navigation.js` takes its standard-rail threshold from
`from('expanded')` (840px) instead of the 64rem it had, and `navigation.css`'s
three 64rem queries follow, so the whole expanded class gets the in-layout
collapsible rail M3 asks for rather than one that opens over a scrim (N-06);
its two 40rem queries become 37.5rem, the compact/medium boundary the bar's own
container query already used (N-07). `search.js` and `datepicker.js` swap their
39.99rem media strings for `upTo('medium')`, so the full-screen search view and
the modal date picker end at 600px, not 640px.
The time picker's landscape layout stops keying on width at all: M3 swaps it on
orientation and viewport height, so it is now landscape plus a window too short
for the upright dial (35rem, the dialog's own height), and the two dial-shrink
rules key on height alone.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Qwx5USif3wFFmxtHg5U1g9
M3 Expressive's flexible navigation bar, the collapsed, expanded and
modal navigation rail with its state applied before the first paint,
and an adaptive app shell composing them. The head script now restores
the theme and rail attributes that wire:navigate strips from <html>.
Completes Phase 8.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01V9NnLxnPp8vaaurb3Z1MFy
