Rewrite the showcase's Motion section without Tailwind

Plan step 38: the two demo buttons are now real <x-button>s (filled
for Move, text for Change the figure) instead of a hand-rolled state-
layer/focus-ring button; each spring's row and its travelling dot
move onto <x-surface>/<x-stack> plus data-md-showcase-motion-row/
-track/-dot in showcase.css — only the dot's size and colour are
fixed there, since the transition under test stays the spring token
in the view's own inline style.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Qwx5USif3wFFmxtHg5U1g9

resources/css/showcase.css

@@ -240,4 +240,25 @@
     [data-md-showcase-elevation-tile][data-md-elevation='5'] {
         box-shadow: var(--md-sys-elevation-5);
     }
+
+    /* Motion: one spring's row (its name, and a track the dot travels), and the dot itself — its
+       colour is decoration, its size is the only thing this file fixes; the transition is the
+       spring under test, so it stays the view's own inline style. */
+    [data-md-showcase-motion-row] {
+        display: grid;
+        grid-template-columns: 144px 1fr;
+        align-items: center;
+        gap: var(--md-sys-measurement-space200);
+    }
+
+    [data-md-showcase-motion-track] {
+        height: var(--md-sys-measurement-space400);
+    }
+
+    [data-md-showcase-motion-dot] {
+        width: var(--md-sys-measurement-space400);
+        height: var(--md-sys-measurement-space400);
+        border-radius: var(--md-sys-shape-corner-full);
+        background-color: var(--md-sys-color-tertiary);
+    }
 }

resources/views/showcase/sections/motion.blade.php

@@ -1,39 +1,39 @@
-<section id="motion" class="scroll-mt-24 space-y-6" x-data="{ moved: false, figure: 1204 }">
+<x-livewire-material::stack as="section" id="motion" gap="space300" x-data="{ moved: false, figure: 1204 }">
-    <h2 class="type-headline-md">Motion</h2>
+    <h2 class="md-type-headline-md">Motion</h2>
 
-    <p class="max-w-3xl type-body-md text-on-surface-variant">
+    <p class="md-type-body-md md-ink-variant">
-        M3 Expressive's springs as <code>ease-spatial-*</code> and <code>ease-effects-*</code>, each with its
+        M3 Expressive's springs as <code>--md-sys-motion-spatial-*</code> and <code>--md-sys-motion-effects-*</code>, each with its
-        <code>--md-sys-motion-*-duration</code>. Reduced motion makes all of them instant.
+        own duration. Reduced motion makes all of them instant.
     </p>
 
-    <p class="max-w-3xl type-body-md text-on-surface-variant" data-test="when-to-use">
+    <p class="md-type-body-md md-ink-variant" data-test="when-to-use">
         Position, size and shape move on the spatial springs, which overshoot — <code>fast</code> for small elements, <code>slow</code> for large ones. Colour and opacity move on the effects springs, which never overshoot. Always pair an easing with its duration; everything that moves goes through these tokens, so reduced motion makes it instant. The Standard scheme (<code>motion.scheme</code>) swaps the spatial springs for a restrained set.
     </p>
 
-    <button type="button" class="state-layer focus-ring rounded-corner-full bg-primary px-6 py-2.5 type-label-lg text-on-primary" x-on:click="moved = ! moved">
+    <x-livewire-material::button variant="filled" label="Move" x-on:click="moved = ! moved" />
-        Move
-    </button>
 
-    <div class="space-y-3 rounded-corner-lg bg-surface-container p-4">
+    <x-livewire-material::surface level="surface-container" padding="space200" corner="lg">
+        <x-livewire-material::stack gap="space100">
             @foreach (['spatial-fast', 'spatial-default', 'spatial-slow', 'effects-fast', 'effects-default', 'effects-slow'] as $spring)
-            <div class="grid grid-cols-[9rem_1fr] items-center gap-4">
+                <div data-md-showcase-motion-row>
-                <code class="type-label-md text-on-surface-variant">ease-{{ $spring }}</code>
+                    <code class="md-type-label-md md-ink-variant">--md-sys-motion-{{ $spring }}</code>
-                <div class="h-8">
+                    <div data-md-showcase-motion-track>
                         <div
-                        class="size-8 rounded-corner-full bg-tertiary"
+                            data-md-showcase-motion-dot
                             style="transition: translate var(--md-sys-motion-{{ $spring }}-duration) var(--md-sys-motion-{{ $spring }})"
                             x-bind:style="moved && { translate: '16rem' }"
                         ></div>
                     </div>
                 </div>
             @endforeach
-    </div>
+        </x-livewire-material::stack>
+    </x-livewire-material::surface>
 
-    <div class="flex flex-wrap items-center gap-4 rounded-corner-lg bg-surface-container p-4">
+    <x-livewire-material::surface level="surface-container" padding="space200" corner="lg">
-        <p class="type-emphasized-display-sm tabular-nums" x-figure x-text="figure.toLocaleString('en') + ' files'">1,204 files</p>
+        <x-livewire-material::row gap="space200" wrap align="center">
-        <button type="button" class="state-layer focus-ring rounded-corner-full px-4 py-2 type-label-lg text-primary" x-on:click="figure = Math.round(Math.random() * 5000)">
+            <p class="md-type-emphasized-display-sm md-tabular" x-figure x-text="figure.toLocaleString('en') + ' files'">1,204 files</p>
-            Change the figure
+            <x-livewire-material::button variant="text" label="Change the figure" x-on:click="figure = Math.round(Math.random() * 5000)" />
-        </button>
+            <code class="md-type-label-md md-ink-variant">x-figure</code>
-        <code class="type-label-md text-on-surface-variant">x-figure</code>
+        </x-livewire-material::row>
-    </div>
+    </x-livewire-material::surface>
-</section>
+</x-livewire-material::stack>