Center lockup-plus-card and card-stack create-flow steps in the nav–footer band so they are not stuck under the header when the content is shorter than the viewport.

Co-authored-by: Cursor <cursoragent@cursor.com>

app/(app)/create/review-template/[slug]/page.tsx

@@ -15,14 +15,17 @@ import {
   CreateFlowLockupCardStepShell,
 } from "../../components/CreateFlowLockupCardStepShell";
 import { CreateFlowStepShell } from "../../components/CreateFlowStepShell";
-import { CREATE_FLOW_MD_UP_COLUMN_MAX_CLASS } from "../../components/createFlowLayoutTokens";
+import {
+  CREATE_FLOW_MD_UP_COLUMN_MAX_CLASS,
+  CREATE_FLOW_MD_CENTERED_SHELL_CLASS,
+} from "../../components/createFlowLayoutTokens";
 import { useCreateFlowMdUp } from "../../hooks/useCreateFlowMdUp";
 
 interface PageProps {
   params: Promise<{ slug: string }>;
 }
 
-/** Template review route — same shell/grid as final-review; Figma `22142-898702`. */
+/** Template review — lockup + card, vertically centered (Figma `22142-898702`). */
 export default function ReviewTemplatePage({ params }: PageProps) {
   const { slug: rawSlug } = use(params);
   const slug = decodeURIComponent(rawSlug);
@@ -72,7 +75,11 @@ export default function ReviewTemplatePage({ params }: PageProps) {
 
   if (loading) {
     return (
-      <CreateFlowStepShell variant="wideGrid" contentTopBelowMd="space-800">
+      <CreateFlowStepShell
+        variant="wideGrid"
+        contentTopBelowMd="space-800"
+        className={CREATE_FLOW_MD_CENTERED_SHELL_CLASS}
+      >
         <div
           className={`flex shrink-0 items-center justify-start pb-16 ${CREATE_FLOW_MD_UP_COLUMN_MAX_CLASS}`}
         >
@@ -101,7 +108,11 @@ export default function ReviewTemplatePage({ params }: PageProps) {
             />
           </div>
         </div>
-        <CreateFlowStepShell variant="wideGrid" contentTopBelowMd="space-800">
+        <CreateFlowStepShell
+          variant="wideGrid"
+          contentTopBelowMd="space-800"
+          className={CREATE_FLOW_MD_CENTERED_SHELL_CLASS}
+        >
           <div
             className={`min-h-[40vh] shrink-0 ${CREATE_FLOW_MD_UP_COLUMN_MAX_CLASS}`}
             aria-hidden