STYLED - Convert the add-project form from a 4-tab wizard to one page

- Remove the tab navigation, per-step sidebar, and Previous/Next buttons;
  render Basics, Localized Content, Sections and Assets stacked on a single
  scrollable page
- Drop the now-unused wizard step machinery (currentStep state, wizardSteps,
  StepStateBadge, step stat card) and related imports
- Keep the same fields, validation, and save gating (Basics + Localized
  Content required; sections/assets optional)

components/admin/portfolio-project-form.tsx

@@ -8,10 +8,7 @@ import {
   BriefcaseBusiness,
   CalendarDays,
   CheckCircle2,
-  ChevronLeft,
-  ChevronRight,
   CircleAlert,
-  CircleDashed,
   Files,
   FolderTree,
   Grid2x2,
@@ -43,7 +40,6 @@ import {
   SelectTrigger,
   SelectValue,
 } from "@/components/ui/select";
-import { Tabs, TabsContent, TabsList, TabsTrigger } from "@/components/ui/tabs";
 import { Textarea } from "@/components/ui/textarea";
 import { moveArrayItem } from "@/lib/array";
 import { getAdminAppPath } from "@/lib/admin-routing";
@@ -52,7 +48,6 @@ import {
   getPortfolioWizardProgress,
   isPortfolioAssetReady,
   isPortfolioSectionReady,
-  type PortfolioWizardStep,
 } from "@/lib/portfolio-form-progress";
 import type { MediaOption } from "@/lib/media";
 import type { PortfolioCategoryView, PortfolioProjectView } from "@/lib/portfolio";
@@ -148,33 +143,6 @@ const viewModeOptions: Array<{
   { value: "CASE_STUDY", label: "Case Study", description: "Structured challenge/solution/outcome view. Sections 1–3 become the lead panels.", icon: BriefcaseBusiness },
 ];
 
-const wizardSteps: Array<{
-  key: PortfolioWizardStep;
-  label: string;
-  description: string;
-}> = [
-  {
-    key: "basics",
-    label: "Basics",
-    description: "Category, slug, client, year, and status.",
-  },
-  {
-    key: "content",
-    label: "Localized Content",
-    description: "Title, service label, and summary in all locales.",
-  },
-  {
-    key: "sections",
-    label: "Sections (optional)",
-    description: "Optional — build the project story with ordered content blocks.",
-  },
-  {
-    key: "assets",
-    label: "Assets & Media (optional)",
-    description: "Optional — cover and gallery assets from the media library.",
-  },
-];
-
 function createMediaFieldState(params: {
   kind: "IMAGE";
   assetId?: string | null;
@@ -379,30 +347,6 @@ function SectionHeader({
   );
 }
 
-function StepStateBadge({
-  complete,
-  active,
-  showValidation,
-}: {
-  complete: boolean;
-  active: boolean;
-  showValidation: boolean;
-}) {
-  if (complete) {
-    return <Badge variant="success">Complete</Badge>;
-  }
-
-  if (showValidation) {
-    return <Badge variant="warning">Needs Attention</Badge>;
-  }
-
-  if (active) {
-    return <Badge variant="outline">Current</Badge>;
-  }
-
-  return <Badge variant="outline">Incomplete</Badge>;
-}
-
 function SubmitButton() {
   const { pending } = useFormStatus();
 
@@ -508,27 +452,6 @@ export function PortfolioProjectForm({
   const initialProjectState = createInitialState(project, availableCategories);
   const initialSections = createInitialSections(project);
   const initialAssets = createInitialAssets(project);
-  const initialProgress = getPortfolioWizardProgress({
-    basics: initialProjectState,
-    content: initialProjectState,
-    sections: initialSections.map((section) => ({
-      type: section.type,
-      titleAr: section.titleAr,
-      titleEn: section.titleEn,
-      titleDe: section.titleDe,
-      bodyAr: section.bodyAr,
-      bodyEn: section.bodyEn,
-      bodyDe: section.bodyDe,
-      linkUrl: section.linkUrl,
-      mediaAssetId: section.media.assetId,
-    })),
-    assets: initialAssets.map((asset) => ({
-      mediaAssetId: asset.media.assetId,
-      altAr: asset.altAr,
-      altEn: asset.altEn,
-      altDe: asset.altDe,
-    })),
-  });
   const [projectState, setProjectState] = useState<ProjectFormState>(initialProjectState);
   const [coverMedia, setCoverMedia] = useState<MediaFieldState>(
     createMediaFieldState({
@@ -540,9 +463,6 @@ export function PortfolioProjectForm({
   );
   const [sections, setSections] = useState<SectionFormValue[]>(initialSections);
   const [assets, setAssets] = useState<AssetFormValue[]>(initialAssets);
-  const [currentStep, setCurrentStep] = useState<PortfolioWizardStep>(
-    getFirstIncompleteWizardStep(initialProgress) ?? "basics",
-  );
   const [showValidation, setShowValidation] = useState(false);
   const sectionsInputRef = useRef<HTMLInputElement | null>(null);
   const assetsInputRef = useRef<HTMLInputElement | null>(null);
@@ -571,7 +491,6 @@ export function PortfolioProjectForm({
     })),
   });
   const firstIncompleteStep = getFirstIncompleteWizardStep(progress);
-  const currentStepIndex = wizardSteps.findIndex((step) => step.key === currentStep);
   const selectedCategory =
     availableCategories.find((category) => category.id === projectState.categoryId) ?? null;
   const projectLabel =
@@ -627,7 +546,6 @@ export function PortfolioProjectForm({
 
         event.preventDefault();
         setShowValidation(true);
-        setCurrentStep(firstIncompleteStep);
       }}
     >
       <input type="hidden" name="id" value={project?.id ?? ""} />
@@ -657,11 +575,6 @@ export function PortfolioProjectForm({
             </div>
 
             <div className="grid gap-3 sm:grid-cols-2 xl:grid-cols-4">
-              <StatsCard
-                title="Step"
-                value={wizardSteps[currentStepIndex]?.label ?? "Basics"}
-                icon={Layers3}
-              />
               <StatsCard title="Sections" value={String(sections.length)} icon={Files} />
               <StatsCard title="Assets" value={String(assets.length)} icon={ImagePlus} />
               <StatsCard
@@ -677,9 +590,9 @@ export function PortfolioProjectForm({
               <div className="flex items-start gap-3">
                 <CircleAlert className="mt-0.5 h-4 w-4 text-status-warning" />
                 <div className="space-y-1">
-                  <p className="text-sm font-medium text-foreground">Complete the highlighted step before saving.</p>
+                  <p className="text-sm font-medium text-foreground">Some required fields are still missing.</p>
                   <p className="text-sm text-muted-foreground">
-                    The wizard moved to the first incomplete step so the missing fields are easier to find.
+                    Fill the Basics and Localized Content fields below, then save.
                   </p>
                 </div>
               </div>
@@ -688,53 +601,8 @@ export function PortfolioProjectForm({
         </div>
       </AppCard>
 
-      <Tabs value={currentStep} onValueChange={(value) => setCurrentStep(value as PortfolioWizardStep)}>
-        <div className="grid gap-6 xl:grid-cols-[300px_minmax(0,1fr)] xl:items-start">
-          <AppCard level={2} layer="single" padding="sm" className="xl:sticky xl:top-4">
-            <TabsList className="grid h-auto w-full gap-3 rounded-none bg-transparent p-0">
-              {wizardSteps.map((step, index) => {
-                const stepProgress = progress.find((entry) => entry.key === step.key);
-                const isActive = currentStep === step.key;
-
-                return (
-                  <TabsTrigger
-                    key={step.key}
-                    value={step.key}
-                    className={cn(
-                      "w-full rounded-nested border border-border/80 bg-background p-0 text-left hover:bg-accent/30",
-                      isActive && "border-input bg-accent/20 text-foreground shadow-xs",
-                    )}
-                  >
-                    <div className="flex w-full flex-col gap-3 p-4">
-                      <div className="flex items-center justify-between gap-3">
-                        <div className="flex items-center gap-3">
-                          <span className="inline-flex h-8 w-8 items-center justify-center rounded-full border border-border/80 bg-surface-2 text-sm font-semibold text-foreground">
-                            {index + 1}
-                          </span>
-                          <div>
-                            <p className="text-sm font-semibold text-foreground">{step.label}</p>
-                          </div>
-                        </div>
-                        {stepProgress?.complete ? (
-                          <CheckCircle2 className="h-4 w-4 text-status-success" />
-                        ) : (
-                          <CircleDashed className="h-4 w-4 text-muted-foreground" />
-                        )}
-                      </div>
-                      <StepStateBadge
-                        complete={Boolean(stepProgress?.complete)}
-                        active={isActive}
-                        showValidation={showValidation && !stepProgress?.complete}
-                      />
-                    </div>
-                  </TabsTrigger>
-                );
-              })}
-            </TabsList>
-          </AppCard>
-
       <div className="space-y-6">
-        <TabsContent value="basics" className="mt-0" forceMount>
+        <div>
           <AppCard level={3} layer="single" padding="lg">
             <section className="space-y-6">
               <SectionHeader
@@ -894,9 +762,9 @@ export function PortfolioProjectForm({
               </div>
             </section>
           </AppCard>
-        </TabsContent>
+        </div>
 
-        <TabsContent value="content" className="mt-0" forceMount>
+        <div>
           <AppCard level={3} layer="single" padding="lg">
             <section className="space-y-6">
               <SectionHeader
@@ -945,9 +813,9 @@ export function PortfolioProjectForm({
               />
             </section>
           </AppCard>
-        </TabsContent>
+        </div>
 
-        <TabsContent value="sections" className="mt-0" forceMount>
+        <div>
           <AppCard level={3} layer="single" padding="lg">
             <section className="space-y-6">
               <SectionHeader
@@ -1135,9 +1003,9 @@ export function PortfolioProjectForm({
               </div>
             </section>
           </AppCard>
-        </TabsContent>
+        </div>
 
-        <TabsContent value="assets" className="mt-0" forceMount>
+        <div>
           <AppCard level={3} layer="single" padding="lg">
             <div className="space-y-8">
               <div className="grid gap-4 lg:grid-cols-[minmax(0,1fr)_280px]">
@@ -1310,38 +1178,11 @@ export function PortfolioProjectForm({
               </div>
             </div>
           </AppCard>
-        </TabsContent>
         </div>
       </div>
-      </Tabs>
 
       <AppCard level={3} layer="single" padding="lg">
-        <div className="flex flex-col gap-4 md:flex-row md:items-center md:justify-between">
-          <div className="flex flex-wrap gap-2">
-            <Button
-              type="button"
-              variant="outline"
-              onClick={() => setCurrentStep(wizardSteps[Math.max(currentStepIndex - 1, 0)]!.key)}
-              disabled={currentStepIndex === 0}
-            >
-              <ChevronLeft className="h-4 w-4" />
-              Previous
-            </Button>
-            <Button
-              type="button"
-              variant="outline"
-              onClick={() =>
-                setCurrentStep(
-                  wizardSteps[Math.min(currentStepIndex + 1, wizardSteps.length - 1)]!.key,
-                )
-              }
-              disabled={currentStepIndex === wizardSteps.length - 1}
-            >
-              Next
-              <ChevronRight className="h-4 w-4" />
-            </Button>
-          </div>
-
+        <div className="flex flex-col gap-4 md:flex-row md:items-center md:justify-end">
           <div className="flex flex-wrap items-center gap-3">
             {firstIncompleteStep ? (
               <p className="text-sm text-muted-foreground">