diff --git a/resources/css/components.css b/resources/css/components.css
index 50ca58df..3a6a7615 100644
--- a/resources/css/components.css
+++ b/resources/css/components.css
@@ -14,6 +14,7 @@
 /* Actions and communication */
 
 /* Inputs, selection and data */
+@import './components/form.css';
 
 /* Containment */
 
diff --git a/resources/css/components/form.css b/resources/css/components/form.css
new file mode 100644
index 00000000..80747a2f
--- /dev/null
+++ b/resources/css/components/form.css
@@ -0,0 +1,37 @@
+/*
+ * <x-form>: its fields in one column, and its actions at the foot
+ * (resources/views/components/form.blade.php).
+ *
+ * The column is a one-track grid whose track is `minmax(0, 1fr)`: a bare grid's implicit column
+ * floors at its content's min-content, so on a phone a wide field would push the form past its
+ * pane. Rows take their content's height. 16px (`space200`) between fields, because a text field
+ * floats its label half above its outline and any less lets the hint under one field run into the
+ * label of the next.
+ *
+ * The actions wrap, end-aligned, 8px (`space100`) apart — M3's gap between buttons in a row. A
+ * caller's class on the `actions` slot lands on the row and outranks this layer.
+ *
+ *   [data-md-form]            the <form>
+ *     [data-md-form-actions]  the row of actions, under the divider when `separator` asks for one
+ */
+
+@layer material.reset, material.tokens, material.base, material.layout, material.components, material.text, material.visibility;
+
+/* TODO(step 36): @import './divider.css' once <x-divider> leaves Tailwind (containment stream). */
+
+@layer material.components {
+    [data-md-form] {
+        display: grid;
+        grid-template-columns: minmax(0, 1fr);
+        grid-auto-rows: min-content;
+        gap: var(--md-sys-measurement-space200);
+    }
+
+    [data-md-form-actions] {
+        display: flex;
+        flex-wrap: wrap;
+        align-items: center;
+        justify-content: flex-end;
+        gap: var(--md-sys-measurement-space100);
+    }
+}
diff --git a/resources/views/components/form.blade.php b/resources/views/components/form.blade.php
index abab70cc..46592455 100644
--- a/resources/views/components/form.blade.php
+++ b/resources/views/components/form.blade.php
@@ -1,17 +1,15 @@
 {{-- A form: its fields in one column, and its actions at the foot.
 
-     `gap-4` between fields, because a text field floats its label half above its outline: any less
-     and the hint under one field runs into the label of the next. The `actions` slot takes a class
-     of its own; `separator` draws a divider above it.
-
-     `grid-cols-1`, because a bare `grid` has no columns and its implicit one floors at the
-     content's min-content: on a phone a wide field would push the form past its column. --}}
+     16px between fields, because a text field floats its label half above its outline: any less
+     and the hint under one field runs into the label of the next. The `actions` slot takes
+     attributes of its own (a `class` from the call site lands on the row untouched); `separator`
+     draws a divider above it. The column is resources/css/components/form.css. --}}
 
 @props([
     'separator' => false,
 ])
 
-<form {{ $attributes->class(['grid grid-cols-1 auto-rows-min gap-4']) }}>
+<form data-md-form {{ $attributes }}>
     {{ $slot }}
 
     @isset($actions)
@@ -19,7 +17,7 @@
             <x-livewire-material::divider />
         @endif
 
-        <div {{ $actions->attributes->class(['flex flex-wrap items-center justify-end gap-2']) }}>
+        <div data-md-form-actions {{ $actions->attributes }}>
             {{ $actions }}
         </div>
     @endisset
diff --git a/tests/Feature/Components/FieldTest.php b/tests/Feature/Components/FieldTest.php
index 10291775..25d945a3 100644
--- a/tests/Feature/Components/FieldTest.php
+++ b/tests/Feature/Components/FieldTest.php
@@ -189,10 +189,20 @@ it('lays out a form with its actions under an optional divider', function () {
         BLADE);
 
     expect($html)
-        ->toContain('<form class="grid grid-cols-1 auto-rows-min gap-4" wire:submit="save">')
+        ->toContain('<form data-md-form wire:submit="save">')
         ->toContain('role="separator"')
-        ->toContain('justify-between')
+        ->toContain('<div data-md-form-actions class="justify-between">')
+        ->not->toContain('grid-cols-1')
         ->toContain('<button>Save</button>')
         ->and((string) $this->blade('<x-form><x-slot:actions><button>Save</button></x-slot:actions></x-form>'))
         ->not->toContain('role="separator"');
 });
+
+it('draws a form\'s column and its actions from its stylesheet', function () {
+    $css = (string) file_get_contents(__DIR__.'/../../../resources/css/components/form.css');
+
+    expect($css)->toContain('@layer material.components')
+        ->toContain('grid-template-columns: minmax(0, 1fr);')
+        ->toContain('gap: var(--md-sys-measurement-space200);')
+        ->and((string) file_get_contents(__DIR__.'/../../../resources/css/components.css'))->toContain("@import './components/form.css';");
+});