diff --git a/src/features/simulations/components/SimulationForm.tsx b/src/features/simulations/components/SimulationForm.tsx
index 60f7fe1..1be8b3c 100644
--- a/src/features/simulations/components/SimulationForm.tsx
+++ b/src/features/simulations/components/SimulationForm.tsx
@@ -3,18 +3,26 @@
  *
  * SEC-04 : validation Zod avant envoi (texte non vide, max 5 000 caractères).
  * SEC-05 : aucun dangerouslySetInnerHTML — le texte utilisateur est rendu comme texte.
- * Règle H : aucune logique métier — le composant reçoit tache, handlers et états par props.
+ * Règle H : aucune logique métier — délègue à simulationConfig + useTimer.
+ *
+ * Minuteur et cibles de mots : cf. getSimulationConfig(tache).
+ * À l'expiration du timer, soumission automatique si mots ≥ motsMin,
+ * sinon message explicite demandant d'atteindre le seuil.
  */
 
 import { useEffect, useRef, useState, type FormEvent } from 'react'
-import { Loader2 } from 'lucide-react'
+import { Clock, Loader2 } from 'lucide-react'
 import { z } from 'zod'
 import { Button } from '@/shared/components/ui/button'
 import { formatTache } from '@/entities/production/lib'
 import type { SujetData, Tache } from '@/entities/production/types'
 import type { ApiError } from '@/shared/types/api'
+import { countWords, getSimulationConfig } from '../lib/simulationConfig'
+import { useTimer } from '../hooks/useTimer'
 import { SujetDisplay } from './SujetDisplay'
 import { SpecialCharsKeyboard } from './SpecialCharsKeyboard'
+import { TimerDisplay } from './TimerDisplay'
+import { WordCountBar } from './WordCountBar'
 
 const textSchema = z.object({
   texte: z
@@ -49,9 +57,16 @@ interface Props {
 
 export function SimulationForm({ tache, sujet, isSubmitting, error, onSubmit, onBack }: Props) {
   const textareaRef = useRef<HTMLTextAreaElement>(null)
+  const hasAutoSubmittedRef = useRef(false)
   const [texte, setTexte] = useState('')
   const [fieldError, setFieldError] = useState<string | null>(null)
 
+  const config = getSimulationConfig(tache)
+  const wordCount = countWords(texte)
+  const canSubmit = wordCount >= config.motsMin
+
+  const timer = useTimer(config.dureeMinutes, !isSubmitting)
+
   useEffect(() => {
     const el = textareaRef.current
     if (!el) return
@@ -59,6 +74,16 @@ export function SimulationForm({ tache, sujet, isSubmitting, error, onSubmit, on
     el.style.height = `${el.scrollHeight}px`
   }, [texte])
 
+  useEffect(() => {
+    if (!timer.isExpired) return
+    if (hasAutoSubmittedRef.current) return
+    if (isSubmitting) return
+    if (wordCount < config.motsMin) return
+
+    hasAutoSubmittedRef.current = true
+    onSubmit(texte)
+  }, [timer.isExpired, wordCount, config.motsMin, isSubmitting, texte, onSubmit])
+
   function handleInsert(char: string) {
     const el = textareaRef.current
     if (!el) {
@@ -86,11 +111,17 @@ export function SimulationForm({ tache, sujet, isSubmitting, error, onSubmit, on
       return
     }
 
+    if (wordCount < config.motsMin) {
+      setFieldError(`Écrivez au moins ${config.motsMin} mots pour soumettre.`)
+      return
+    }
+
     onSubmit(parsed.data.texte)
   }
 
   const apiError = mapCorrectError(error)
-  const charCount = texte.length
+  const expiredBelowMin = timer.isExpired && wordCount < config.motsMin
+  const submitDisabled = isSubmitting || !canSubmit
 
   return (
     <div className="space-y-4">
@@ -103,7 +134,7 @@ export function SimulationForm({ tache, sujet, isSubmitting, error, onSubmit, on
         >
           ← Retour
         </button>
-        <h2 className="text-lg font-semibold text-ink-1">{formatTache(tache)}</h2>
+        <h2 className="flex-1 text-lg font-semibold text-ink-1">{formatTache(tache)}</h2>
       </div>
 
       <SujetDisplay sujet={sujet} />
@@ -117,12 +148,48 @@ export function SimulationForm({ tache, sujet, isSubmitting, error, onSubmit, on
         </div>
       )}
 
+      {expiredBelowMin && (
+        <div
+          role="alert"
+          className="rounded-md border border-warning/40 bg-warning-bg px-3 py-2 text-sm text-warning"
+        >
+          Temps écoulé. Écrivez au moins {config.motsMin} mots pour soumettre.
+        </div>
+      )}
+
       <form onSubmit={handleSubmit} className="space-y-3" noValidate>
         <div className="space-y-1.5">
           <label htmlFor="texte" className="text-sm font-medium text-ink-2">
             Votre production
           </label>
-          <div className="sticky top-0 z-10 bg-canvas pb-1">
+          <div className="sticky top-14 z-20 bg-canvas pb-1 lg:top-0">
+            <div
+              className={`mb-2 flex items-center gap-2 rounded-md border px-3 py-2 ${
+                timer.isExpired || timer.secondesRestantes < 120
+                  ? 'border-danger bg-danger-bg'
+                  : 'border-line bg-surface'
+              }`}
+            >
+              <Clock
+                className={`size-4 ${
+                  timer.isExpired || timer.secondesRestantes < 120 ? 'text-danger' : 'text-ink-3'
+                }`}
+                aria-hidden="true"
+              />
+              <span
+                className={`text-xs font-medium uppercase tracking-wide ${
+                  timer.isExpired || timer.secondesRestantes < 120 ? 'text-danger' : 'text-ink-3'
+                }`}
+              >
+                Temps restant
+              </span>
+              <span className="ml-auto">
+                <TimerDisplay
+                  secondesRestantes={timer.secondesRestantes}
+                  isExpired={timer.isExpired}
+                />
+              </span>
+            </div>
             <SpecialCharsKeyboard onInsert={handleInsert} disabled={isSubmitting} />
           </div>
           <textarea
@@ -137,28 +204,22 @@ export function SimulationForm({ tache, sujet, isSubmitting, error, onSubmit, on
             aria-describedby={fieldError ? 'texte-error' : undefined}
             className="w-full resize-none overflow-y-hidden rounded-md border border-line bg-surface p-3 text-sm text-ink-1 placeholder:text-ink-5 focus:border-expria focus:outline-none focus:ring-2 focus:ring-expria/20 disabled:cursor-not-allowed disabled:opacity-50"
           />
-          <div className="flex items-start justify-between gap-2">
-            {fieldError ? (
-              <p id="texte-error" className="text-sm text-danger">
-                {fieldError}
-              </p>
-            ) : (
-              <span />
-            )}
-            <span className={`text-xs tabular-nums ${charCount > 5000 ? 'text-danger' : 'text-ink-5'}`}>
-              {charCount.toLocaleString('fr-FR')}&thinsp;/&thinsp;5 000
-            </span>
-          </div>
+          <WordCountBar count={wordCount} config={config} />
+          {fieldError && (
+            <p id="texte-error" className="text-sm text-danger">
+              {fieldError}
+            </p>
+          )}
         </div>
 
-        <Button type="submit" className="w-full" disabled={isSubmitting}>
+        <Button type="submit" className="w-full" disabled={submitDisabled}>
           {isSubmitting ? (
             <>
               <Loader2 className="animate-spin" aria-hidden="true" />
               Correction en cours…
             </>
           ) : (
-            'Envoyer pour correction'
+            'Soumettre ma production'
           )}
         </Button>