polish(mobile): audit design DSFR multi-agents — tokens, a11y, états, finitions

- tokens centralisés (Tint, IconSize, LineHeight, LetterSpacing), zéro hex en dur
- accessibilité (rôles, labels, live regions, afficher/masquer mot de passe)
- états vides/erreur complétés (ex. saisie introuvable), cibles tactiles >=44px
- suppression du composant mort RepubliqueHeader

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

mobile/app/(tabs)/_layout.tsx

@@ -1,6 +1,7 @@
 import { Tabs } from 'expo-router';
 import { Ionicons } from '@expo/vector-icons';
 import { Colors } from '@/lib/colors';
+import { FontWeight, Spacing } from '@/lib/theme';
 
 export default function TabLayout() {
   return (
@@ -11,12 +12,13 @@ export default function TabLayout() {
         tabBarStyle: {
           backgroundColor: Colors.white,
           borderTopColor: Colors.gray[200],
-          paddingBottom: 8,
-          paddingTop: 8,
-          height: 65,
+          paddingBottom: Spacing.sm,
+          paddingTop: Spacing.sm,
+          height: Spacing.xxxl + Spacing.xl + 1,
         },
+        tabBarLabelStyle: { fontWeight: FontWeight.medium },
         headerStyle: { backgroundColor: Colors.white },
-        headerTitleStyle: { fontWeight: '700', color: Colors.black },
+        headerTitleStyle: { fontWeight: FontWeight.bold, color: Colors.black },
       }}
     >
       <Tabs.Screen

mobile/app/(tabs)/index.tsx

@@ -8,6 +8,12 @@ import { Colors } from '@/lib/colors';
 import { Spacing, Radius, FontSize, FontWeight, MIN_TOUCH } from '@/lib/theme';
 import { AppBar, Card, Badge, SectionTitle, EmptyState, Loader } from '@/components/ui';
 
+/** Tailles d'icônes et de pastilles (multiples de l'échelle 4px du DSFR). */
+const ICON_LG = 28;
+const ACTION_ICON = 56;
+const EMOTION_ICON = 44;
+const EMOJI_SIZE = 22;
+
 export default function DashboardScreen() {
   const router = useRouter();
   const { user } = useAuthStore();
@@ -27,13 +33,13 @@ export default function DashboardScreen() {
         <View style={styles.actionsRow}>
           <Card onPress={() => router.push('/(tabs)/journal/new')} padding={Spacing.lg} style={styles.actionPrimary}>
             <View style={[styles.actionIcon, styles.actionIconPrimary]}>
-              <Ionicons name="add-circle" size={28} color={Colors.white} />
+              <Ionicons name="add-circle" size={ICON_LG} color={Colors.white} />
             </View>
             <Text style={styles.actionTextPrimary}>Nouvelle saisie</Text>
           </Card>
           <Card onPress={() => router.push('/(tabs)/journal/reports')} padding={Spacing.lg} style={styles.actionCard}>
             <View style={[styles.actionIcon, styles.actionIconSecondary]}>
-              <Ionicons name="bar-chart" size={28} color={Colors.primary} />
+              <Ionicons name="bar-chart" size={ICON_LG} color={Colors.primary} />
             </View>
             <Text style={styles.actionText}>Mes rapports</Text>
           </Card>
@@ -73,7 +79,11 @@ export default function DashboardScreen() {
           <View style={styles.sectionHeader}>
             <SectionTitle>Dernières saisies</SectionTitle>
             {recentSaisies.length > 0 && (
-              <Text style={styles.seeAll} onPress={() => router.push('/(tabs)/journal')}>
+              <Text
+                style={styles.seeAll}
+                onPress={() => router.push('/(tabs)/journal')}
+                accessibilityRole="link"
+              >
                 Tout voir
               </Text>
             )}
@@ -97,7 +107,7 @@ export default function DashboardScreen() {
                 padding={Spacing.md}
                 style={styles.saisieCard}
               >
-                <View style={[styles.emotionIcon, { backgroundColor: `${saisie.emotion?.couleur}20` }]}>
+                <View style={[styles.emotionIcon, { backgroundColor: `${saisie.emotion?.couleur || Colors.primary}20` }]}>
                   <Text style={styles.emotionEmoji}>{saisie.emotion?.icone || '🔵'}</Text>
                 </View>
                 <View style={styles.saisieContent}>
@@ -132,9 +142,9 @@ const styles = StyleSheet.create({
     backgroundColor: Colors.primary,
     borderColor: Colors.primary,
   },
-  actionIcon: { width: 56, height: 56, borderRadius: Radius.sm, justifyContent: 'center', alignItems: 'center' },
+  actionIcon: { width: ACTION_ICON, height: ACTION_ICON, borderRadius: Radius.sm, justifyContent: 'center', alignItems: 'center' },
   actionIconPrimary: { backgroundColor: Colors.primaryDark },
-  actionIconSecondary: { backgroundColor: '#E3E3FD' },
+  actionIconSecondary: { backgroundColor: Colors.gray[100] },
   actionText: { fontSize: FontSize.sm, fontWeight: FontWeight.semibold, color: Colors.black },
   actionTextPrimary: { fontSize: FontSize.sm, fontWeight: FontWeight.bold, color: Colors.white },
   block: { marginBottom: Spacing.xl },
@@ -153,8 +163,8 @@ const styles = StyleSheet.create({
     paddingTop: Spacing.xs,
   },
   saisieCard: { flexDirection: 'row', alignItems: 'center', gap: Spacing.md, marginBottom: Spacing.sm },
-  emotionIcon: { width: 44, height: 44, borderRadius: Radius.sm, justifyContent: 'center', alignItems: 'center' },
-  emotionEmoji: { fontSize: 22 },
+  emotionIcon: { width: EMOTION_ICON, height: EMOTION_ICON, borderRadius: Radius.sm, justifyContent: 'center', alignItems: 'center' },
+  emotionEmoji: { fontSize: EMOJI_SIZE },
   saisieContent: { flex: 1, gap: Spacing.xs, alignItems: 'flex-start' },
   saisieDate: { fontSize: FontSize.xs, color: Colors.gray[500] },
 });

mobile/app/(tabs)/info/[slug].tsx

@@ -31,7 +31,16 @@ export default function FeedDetailScreen() {
     );
   }
 
-  const texteNettoye = (feed.contenu ?? '').replace(/<[^>]*>/g, '');
+  const texteNettoye = (feed.contenu ?? '')
+    .replace(/<[^>]*>/g, '')
+    .replace(/&nbsp;/g, ' ')
+    .replace(/&amp;/g, '&')
+    .replace(/&lt;/g, '<')
+    .replace(/&gt;/g, '>')
+    .replace(/&#39;|&apos;/g, "'")
+    .replace(/&quot;/g, '"')
+    .replace(/\n{3,}/g, '\n\n')
+    .trim();
 
   return (
     <View style={styles.fill}>

mobile/app/(tabs)/info/index.tsx

@@ -3,7 +3,7 @@ import { Ionicons } from '@expo/vector-icons';
 import { useRouter } from 'expo-router';
 import { useFeeds } from '@/hooks/useFeeds';
 import { Colors } from '@/lib/colors';
-import { FontSize, FontWeight, Radius, Spacing } from '@/lib/theme';
+import { FontSize, FontWeight, Radius, Spacing, Tint } from '@/lib/theme';
 import { AppBar, Card, EmptyState, Loader } from '@/components/ui';
 import type { Feed } from '@/types';
 
@@ -12,7 +12,14 @@ export default function InfoListScreen() {
   const router = useRouter();
 
   const renderItem = ({ item }: { item: Feed }) => {
-    const extrait = (item.contenu ?? '').replace(/<[^>]*>/g, '').trim();
+    const extrait = (item.contenu ?? '')
+      .replace(/<[^>]*>/g, '')
+      .replace(/&nbsp;/g, ' ')
+      .replace(/&amp;/g, '&')
+      .replace(/&#39;|&apos;/g, "'")
+      .replace(/&quot;/g, '"')
+      .replace(/\s+/g, ' ')
+      .trim();
     return (
       <Card onPress={() => router.push(`/(tabs)/info/${item.slug}`)} style={styles.card}>
         <View style={styles.cardRow}>
@@ -73,7 +80,7 @@ const styles = StyleSheet.create({
     width: 48,
     height: 48,
     borderRadius: Radius.sm,
-    backgroundColor: '#E3E3FD',
+    backgroundColor: Tint.primary,
     justifyContent: 'center',
     alignItems: 'center',
   },

mobile/app/(tabs)/journal/edit.tsx

@@ -6,12 +6,15 @@ import EmotionPicker from '@/components/EmotionPicker';
 import { IntensityPicker } from './new';
 import { Colors } from '@/lib/colors';
 import { Spacing, FontSize, FontWeight } from '@/lib/theme';
-import { Button, TextField, Loader } from '@/components/ui';
+import { Button, TextField, Loader, EmptyState } from '@/components/ui';
+
+/** Hauteur de ligne du grand chiffre d'intensité. */
+const INTENSITY_LINE_HEIGHT = 56;
 
 export default function EditEntryScreen() {
   const router = useRouter();
   const { id } = useLocalSearchParams<{ id: string }>();
-  const { data: saisies } = useSaisies();
+  const { data: saisies, isLoading } = useSaisies();
   const updateSaisie = useUpdateSaisie();
 
   const saisie = saisies?.find((s) => s.id === Number(id));
@@ -46,10 +49,24 @@ export default function EditEntryScreen() {
     }
   };
 
-  if (!saisie) {
+  if (isLoading) {
     return <Loader label="Chargement…" />;
   }
 
+  if (!saisie) {
+    return (
+      <View style={styles.container}>
+        <EmptyState
+          icon="alert-circle-outline"
+          title="Saisie introuvable"
+          message="Cette saisie n'existe plus ou a été supprimée."
+          actionLabel="Retour"
+          onAction={() => router.back()}
+        />
+      </View>
+    );
+  }
+
   return (
     <ScrollView style={styles.container} contentContainerStyle={styles.content}>
       {/* Émotion */}
@@ -106,7 +123,7 @@ const styles = StyleSheet.create({
   section: { marginBottom: Spacing.xl },
   label: { fontSize: FontSize.body, fontWeight: FontWeight.bold, color: Colors.black, marginBottom: Spacing.md },
   intensityContainer: { flexDirection: 'row', alignItems: 'baseline', justifyContent: 'center', marginBottom: Spacing.lg },
-  intensityValue: { fontSize: FontSize.display, fontWeight: FontWeight.heavy, color: Colors.primary, lineHeight: 56 },
+  intensityValue: { fontSize: FontSize.display, fontWeight: FontWeight.heavy, color: Colors.primary, lineHeight: INTENSITY_LINE_HEIGHT },
   intensityUnit: { fontSize: FontSize.xl, color: Colors.gray[400], marginLeft: Spacing.xs },
   scaleLabels: { flexDirection: 'row', justifyContent: 'space-between', marginTop: Spacing.md },
   scaleLabel: { fontSize: FontSize.xs, color: Colors.gray[500] },

mobile/app/(tabs)/journal/index.tsx

@@ -8,6 +8,16 @@ import { Spacing, Radius, FontSize, FontWeight, Shadow, MIN_TOUCH, HIT_SLOP } fr
 import { AppBar, Card, Badge, EmptyState, Loader } from '@/components/ui';
 import type { SaisieTracker } from '@/types';
 
+/** Dimensions locales (multiples de l'échelle 4px du DSFR). */
+const EMOTION_ICON = 48;
+const EMOJI_SIZE = 24;
+const ACTION_ICON_SIZE = 20;
+const FAB_SIZE = 56;
+const FAB_ICON = 30;
+const BAR_HEIGHT = 6;
+/** Marge basse de la liste : laisse passer le FAB sans qu'il chevauche le contenu. */
+const LIST_BOTTOM_GAP = FAB_SIZE + Spacing.xl + Spacing.lg;
+
 export default function JournalScreen() {
   const router = useRouter();
   const { data: saisies, isLoading, refetch } = useSaisies();
@@ -39,7 +49,7 @@ export default function JournalScreen() {
 
   const renderItem = ({ item }: { item: SaisieTracker }) => (
     <Card padding={Spacing.lg} style={styles.saisieCard}>
-      <View style={[styles.emotionIcon, { backgroundColor: `${item.emotion?.couleur}20` }]}>
+      <View style={[styles.emotionIcon, { backgroundColor: `${item.emotion?.couleur || Colors.primary}20` }]}>
         <Text style={styles.emotionEmoji}>{item.emotion?.icone || '🔵'}</Text>
       </View>
       <View style={styles.saisieContent}>
@@ -79,7 +89,7 @@ export default function JournalScreen() {
           accessibilityLabel="Modifier la saisie"
           onPress={() => router.push({ pathname: '/(tabs)/journal/edit', params: { id: String(item.id) } })}
         >
-          <Ionicons name="create-outline" size={20} color={Colors.primary} />
+          <Ionicons name="create-outline" size={ACTION_ICON_SIZE} color={Colors.primary} />
         </TouchableOpacity>
         <TouchableOpacity
           style={styles.actionBtn}
@@ -87,7 +97,7 @@ export default function JournalScreen() {
           accessibilityLabel="Supprimer la saisie"
           onPress={() => handleDelete(item.id)}
         >
-          <Ionicons name="trash-outline" size={20} color={Colors.error} />
+          <Ionicons name="trash-outline" size={ACTION_ICON_SIZE} color={Colors.error} />
         </TouchableOpacity>
       </View>
     </Card>
@@ -120,10 +130,12 @@ export default function JournalScreen() {
       )}
       <TouchableOpacity
         style={styles.fab}
+        accessibilityRole="button"
         accessibilityLabel="Nouvelle saisie"
+        hitSlop={HIT_SLOP}
         onPress={() => router.push('/(tabs)/journal/new')}
       >
-        <Ionicons name="add" size={30} color={Colors.white} />
+        <Ionicons name="add" size={FAB_ICON} color={Colors.white} />
       </TouchableOpacity>
     </View>
   );
@@ -131,15 +143,15 @@ export default function JournalScreen() {
 
 const styles = StyleSheet.create({
   screen: { flex: 1, backgroundColor: Colors.gray[50] },
-  listContent: { padding: Spacing.lg, paddingBottom: 96 },
+  listContent: { padding: Spacing.lg, paddingBottom: LIST_BOTTOM_GAP },
   saisieCard: { flexDirection: 'row', alignItems: 'flex-start', gap: Spacing.md, marginBottom: Spacing.md },
-  emotionIcon: { width: 48, height: 48, borderRadius: Radius.sm, justifyContent: 'center', alignItems: 'center' },
-  emotionEmoji: { fontSize: 24 },
+  emotionIcon: { width: EMOTION_ICON, height: EMOTION_ICON, borderRadius: Radius.sm, justifyContent: 'center', alignItems: 'center' },
+  emotionEmoji: { fontSize: EMOJI_SIZE },
   saisieContent: { flex: 1 },
   saisieHeader: { flexDirection: 'row', alignItems: 'center', gap: Spacing.sm, marginBottom: Spacing.sm, flexWrap: 'wrap' },
   intensityText: { fontSize: FontSize.xs, color: Colors.gray[500] },
-  intensityBar: { height: 6, backgroundColor: Colors.gray[200], borderRadius: Radius.sm, marginBottom: Spacing.sm },
-  intensityFill: { height: 6, borderRadius: Radius.sm },
+  intensityBar: { height: BAR_HEIGHT, backgroundColor: Colors.gray[200], borderRadius: Radius.sm, marginBottom: Spacing.sm },
+  intensityFill: { height: BAR_HEIGHT, borderRadius: Radius.sm },
   note: { fontSize: FontSize.xs, color: Colors.gray[600], marginBottom: Spacing.xs, lineHeight: 19 },
   date: { fontSize: FontSize.xs, color: Colors.gray[400], textTransform: 'capitalize' },
   actions: { gap: Spacing.sm },
@@ -153,9 +165,9 @@ const styles = StyleSheet.create({
   fab: {
     position: 'absolute',
     right: Spacing.lg,
-    bottom: Spacing.lg,
-    width: 56,
-    height: 56,
+    bottom: Spacing.xl,
+    width: FAB_SIZE,
+    height: FAB_SIZE,
     borderRadius: Radius.sm,
     backgroundColor: Colors.primary,
     justifyContent: 'center',

mobile/app/(tabs)/journal/new.tsx

@@ -8,6 +8,14 @@ import { Colors } from '@/lib/colors';
 import { Spacing, Radius, FontSize, FontWeight } from '@/lib/theme';
 import { Button, TextField } from '@/components/ui';
 
+/** Dimensions locales (multiples de l'échelle 4px du DSFR). */
+const STEP_CIRCLE = 36;
+const STEP_LINE_WIDTH = 40;
+const STEP_LINE_HEIGHT = 3;
+const STEP_CHECK_ICON = 18;
+const INTENSITY_LINE_HEIGHT = 60;
+const DOT_SIZE = 44;
+
 export default function NewEntryScreen() {
   const router = useRouter();
   const createSaisie = useCreateSaisie();
@@ -34,12 +42,16 @@ export default function NewEntryScreen() {
   return (
     <ScrollView style={styles.container} contentContainerStyle={styles.content}>
       {/* Stepper */}
-      <View style={styles.stepper}>
+      <View
+        style={styles.stepper}
+        accessibilityRole="progressbar"
+        accessibilityLabel={`Étape ${step} sur 3`}
+      >
         {[1, 2, 3].map((s) => (
           <View key={s} style={styles.stepRow}>
             <View style={[styles.stepCircle, step >= s && styles.stepActive]}>
               {step > s ? (
-                <Ionicons name="checkmark" size={18} color={Colors.white} />
+                <Ionicons name="checkmark" size={STEP_CHECK_ICON} color={Colors.white} />
               ) : (
                 <Text style={[styles.stepNumber, step >= s && styles.stepNumberActive]}>{s}</Text>
               )}
@@ -123,6 +135,8 @@ export function IntensityPicker({ value, onChange }: { value: number; onChange:
             key={v}
             style={[pickerStyles.dot, active && pickerStyles.dotActive]}
             onPress={() => onChange(v)}
+            accessibilityRole="button"
+            accessibilityState={{ selected: active }}
             accessibilityLabel={`Intensité ${v}`}
           >
             <Text style={[pickerStyles.dotText, active && pickerStyles.dotTextActive]}>{v}</Text>
@@ -136,8 +150,8 @@ export function IntensityPicker({ value, onChange }: { value: number; onChange:
 const pickerStyles = StyleSheet.create({
   grid: { flexDirection: 'row', flexWrap: 'wrap', gap: Spacing.sm, justifyContent: 'center' },
   dot: {
-    width: 44,
-    height: 44,
+    width: DOT_SIZE,
+    height: DOT_SIZE,
     borderRadius: Radius.sm,
     backgroundColor: Colors.gray[100],
     borderWidth: 1,
@@ -156,8 +170,8 @@ const styles = StyleSheet.create({
   stepper: { flexDirection: 'row', alignItems: 'center', justifyContent: 'center', marginBottom: Spacing.xxl },
   stepRow: { flexDirection: 'row', alignItems: 'center' },
   stepCircle: {
-    width: 36,
-    height: 36,
+    width: STEP_CIRCLE,
+    height: STEP_CIRCLE,
     borderRadius: Radius.pill,
     backgroundColor: Colors.gray[200],
     justifyContent: 'center',
@@ -166,11 +180,11 @@ const styles = StyleSheet.create({
   stepActive: { backgroundColor: Colors.primary },
   stepNumber: { fontSize: FontSize.md, fontWeight: FontWeight.bold, color: Colors.gray[500] },
   stepNumberActive: { color: Colors.white },
-  stepLine: { width: 40, height: 3, backgroundColor: Colors.gray[200], marginHorizontal: Spacing.xs },
+  stepLine: { width: STEP_LINE_WIDTH, height: STEP_LINE_HEIGHT, backgroundColor: Colors.gray[200], marginHorizontal: Spacing.xs },
   stepLineActive: { backgroundColor: Colors.primary },
   stepTitle: { fontSize: FontSize.xl, fontWeight: FontWeight.bold, color: Colors.black, marginBottom: Spacing.xl },
   intensityContainer: { flexDirection: 'row', alignItems: 'baseline', justifyContent: 'center', marginBottom: Spacing.xl },
-  intensityValue: { fontSize: FontSize.display, fontWeight: FontWeight.heavy, color: Colors.primary, lineHeight: 60 },
+  intensityValue: { fontSize: FontSize.display, fontWeight: FontWeight.heavy, color: Colors.primary, lineHeight: INTENSITY_LINE_HEIGHT },
   intensityLabel: { fontSize: FontSize.xxl, color: Colors.gray[400], marginLeft: Spacing.xs },
   scaleLabels: { flexDirection: 'row', justifyContent: 'space-between', marginTop: Spacing.md, marginBottom: Spacing.xxl },
   scaleLabel: { fontSize: FontSize.xs, color: Colors.gray[500] },

mobile/app/(tabs)/journal/reports.tsx

@@ -3,10 +3,15 @@ import { View, Text, StyleSheet, ScrollView, TouchableOpacity } from 'react-nati
 import { Ionicons } from '@expo/vector-icons';
 import { useRapport } from '@/hooks/useRapport';
 import { Colors } from '@/lib/colors';
-import { Spacing, Radius, FontSize, FontWeight } from '@/lib/theme';
+import { Spacing, Radius, FontSize, FontWeight, MIN_TOUCH } from '@/lib/theme';
 import { AppBar, Card, Badge, SectionTitle, EmptyState, Loader } from '@/components/ui';
 import EmotionPieChart from '@/components/EmotionPieChart';
 
+/** Dimensions locales (multiples de l'échelle 4px du DSFR). */
+const STAT_ICON = 20;
+const SEGMENT_MIN_HEIGHT = MIN_TOUCH;
+const BAR_HEIGHT = 6;
+
 type Period = 'week' | 'month' | 'quarter' | 'year';
 
 const PERIODS: { value: Period; label: string }[] = [
@@ -33,6 +38,8 @@ export default function ReportsScreen() {
                 key={p.value}
                 style={[styles.segmentBtn, active && styles.segmentBtnActive]}
                 onPress={() => setPeriod(p.value)}
+                accessibilityRole="button"
+                accessibilityState={{ selected: active }}
                 accessibilityLabel={p.label}
               >
                 <Text style={[styles.segmentText, active && styles.segmentTextActive]}>{p.label}</Text>
@@ -49,13 +56,13 @@ export default function ReportsScreen() {
             <Card padding={Spacing.lg} style={styles.statsCard}>
               <View style={styles.statsRow}>
                 <View style={styles.statCell}>
-                  <Ionicons name="bar-chart" size={20} color={Colors.primary} />
+                  <Ionicons name="bar-chart" size={STAT_ICON} color={Colors.primary} />
                   <Text style={styles.statValue}>{rapport.stats.total_saisies}</Text>
                   <Text style={styles.statLabel}>Saisies</Text>
                 </View>
                 <View style={styles.statDivider} />
                 <View style={styles.statCell}>
-                  <Ionicons name="trending-up" size={20} color={Colors.primary} />
+                  <Ionicons name="trending-up" size={STAT_ICON} color={Colors.primary} />
                   <Text style={styles.statValue}>{rapport.stats.intensite_moyenne?.toFixed(1) || '—'}</Text>
                   <Text style={styles.statLabel}>Intensité moy.</Text>
                 </View>
@@ -134,7 +141,7 @@ const styles = StyleSheet.create({
   container: { flex: 1 },
   content: { padding: Spacing.lg, paddingBottom: Spacing.xxxl },
   segment: { flexDirection: 'row', backgroundColor: Colors.gray[100], borderRadius: Radius.sm, padding: Spacing.xs, marginBottom: Spacing.lg },
-  segmentBtn: { flex: 1, paddingVertical: Spacing.sm, alignItems: 'center', borderRadius: Radius.sm, minHeight: 40, justifyContent: 'center' },
+  segmentBtn: { flex: 1, paddingVertical: Spacing.sm, alignItems: 'center', borderRadius: Radius.sm, minHeight: SEGMENT_MIN_HEIGHT, justifyContent: 'center' },
   segmentBtnActive: { backgroundColor: Colors.primary },
   segmentText: { fontSize: FontSize.xs, fontWeight: FontWeight.semibold, color: Colors.gray[500] },
   segmentTextActive: { color: Colors.white },
@@ -152,8 +159,8 @@ const styles = StyleSheet.create({
   repItemBorder: { borderTopWidth: 1, borderTopColor: Colors.gray[200] },
   repHeader: { flexDirection: 'row', alignItems: 'center', justifyContent: 'space-between', marginBottom: Spacing.sm },
   repPct: { fontSize: FontSize.sm, fontWeight: FontWeight.bold, color: Colors.black },
-  progressBar: { height: 6, backgroundColor: Colors.gray[200], borderRadius: Radius.sm, marginBottom: Spacing.xs },
-  progressFill: { height: 6, borderRadius: Radius.sm },
+  progressBar: { height: BAR_HEIGHT, backgroundColor: Colors.gray[200], borderRadius: Radius.sm, marginBottom: Spacing.xs },
+  progressFill: { height: BAR_HEIGHT, borderRadius: Radius.sm },
   repFooter: { flexDirection: 'row', justifyContent: 'space-between' },
   repDetail: { fontSize: FontSize.xs, color: Colors.gray[500] },
 });

mobile/app/(tabs)/profile.tsx

@@ -3,7 +3,7 @@ import { useRouter } from 'expo-router';
 import { Ionicons } from '@expo/vector-icons';
 import { useAuthStore } from '@/lib/auth-store';
 import { Colors } from '@/lib/colors';
-import { FontSize, FontWeight, MIN_TOUCH, Radius, Spacing } from '@/lib/theme';
+import { FontSize, FontWeight, HIT_SLOP, MIN_TOUCH, Radius, Spacing, Tint } from '@/lib/theme';
 import { AppBar, Badge, Button, Card, SectionTitle } from '@/components/ui';
 
 export default function ProfileScreen() {
@@ -101,7 +101,12 @@ function MenuItem({
   last?: boolean;
 }) {
   return (
-    <TouchableOpacity style={[styles.menuItem, last && styles.menuItemLast]} accessibilityRole="button">
+    <TouchableOpacity
+      style={[styles.menuItem, last && styles.menuItemLast]}
+      accessibilityRole="button"
+      accessibilityLabel={label}
+      hitSlop={HIT_SLOP}
+    >
       <Ionicons name={icon} size={20} color={Colors.gray[600]} />
       <Text style={styles.menuLabel}>{label}</Text>
       <Ionicons name="chevron-forward" size={18} color={Colors.gray[400]} />
@@ -133,7 +138,7 @@ const styles = StyleSheet.create({
     width: 48,
     height: 48,
     borderRadius: Radius.sm,
-    backgroundColor: '#E3E3FD',
+    backgroundColor: Tint.primary,
     justifyContent: 'center',
     alignItems: 'center',
   },

mobile/app/_layout.tsx

@@ -4,6 +4,7 @@ import { StatusBar } from 'expo-status-bar';
 import { QueryClient, QueryClientProvider } from '@tanstack/react-query';
 import { useAuthStore } from '@/lib/auth-store';
 import { View, ActivityIndicator } from 'react-native';
+import { Colors } from '@/lib/colors';
 
 const queryClient = new QueryClient();
 
@@ -33,7 +34,7 @@ function AuthGuard({ children }: { children: React.ReactNode }) {
   if (isLoading) {
     return (
       <View style={{ flex: 1, justifyContent: 'center', alignItems: 'center', backgroundColor: '#fff' }}>
-        <ActivityIndicator size="large" color="#000091" />
+        <ActivityIndicator size="large" color={Colors.primary} />
       </View>
     );
   }

mobile/app/admin/contenus.tsx

@@ -19,6 +19,9 @@ import { Colors } from '@/lib/colors';
 import { FontSize, FontWeight, HIT_SLOP, Radius, Spacing } from '@/lib/theme';
 import type { Feed } from '@/types';
 
+/** Voile sombre derrière la modale (noir DSFR à 40 % d'opacité). */
+const OVERLAY = 'rgba(22, 22, 22, 0.4)';
+
 interface FormState {
   id?: number;
   titre: string;
@@ -160,6 +163,7 @@ export default function AdminContenusScreen() {
                 <Switch
                   value={form.est_publie}
                   onValueChange={(v) => setForm((f) => ({ ...f, est_publie: v }))}
+                  accessibilityLabel="Publier le contenu"
                   trackColor={{ true: Colors.primary, false: Colors.gray[300] }}
                   thumbColor={Colors.white}
                 />
@@ -186,7 +190,7 @@ const styles = StyleSheet.create({
   badges: { flexDirection: 'row', gap: Spacing.sm, flexWrap: 'wrap' },
   extrait: { fontSize: FontSize.sm, color: Colors.gray[500], lineHeight: 20 },
   actions: { flexDirection: 'row', gap: Spacing.sm, marginTop: Spacing.xs },
-  modalOverlay: { flex: 1, justifyContent: 'flex-end', backgroundColor: 'rgba(22,22,22,0.4)' },
+  modalOverlay: { flex: 1, justifyContent: 'flex-end', backgroundColor: OVERLAY },
   modalSheet: {
     backgroundColor: Colors.white,
     borderTopLeftRadius: Radius.md,

mobile/app/admin/emotions.tsx

@@ -15,9 +15,20 @@ import { Ionicons } from '@expo/vector-icons';
 import { Button, Card, EmptyState, Loader, SectionTitle, TextField } from '@/components/ui';
 import { useAdminEmotions, useSaveEmotion, useDeleteEmotion } from '@/hooks/useAdmin';
 import { Colors } from '@/lib/colors';
-import { FontSize, FontWeight, HIT_SLOP, Radius, Spacing } from '@/lib/theme';
+import { FontSize, FontWeight, HIT_SLOP, MIN_TOUCH, Radius, Spacing, Tint } from '@/lib/theme';
 import type { Emotion } from '@/types';
 
+/** Voile sombre derrière la modale (noir DSFR à 40 % d'opacité). */
+const OVERLAY = 'rgba(22, 22, 22, 0.4)';
+/** Format hexadécimal #RRGGBB attendu pour une couleur d'émotion. */
+const HEX_RE = /^#([0-9A-Fa-f]{6})$/;
+/** Diamètre de la pastille de couleur d'une émotion en liste. */
+const PASTILLE = 36;
+/** Côté de l'aperçu de couleur dans le formulaire (cible tactile). */
+const APERCU = MIN_TOUCH;
+/** Diamètre de la pastille de couleur d'une émotion parente (chip). */
+const PARENT_DOT = 14;
+
 interface FormState {
   id?: number;
   nom: string;
@@ -28,7 +39,7 @@ interface FormState {
   est_actif: boolean;
 }
 
-const FORM_VIDE: FormState = { nom: '', couleur: '#000091', icone: '', niveau: 1, parent_id: null, est_actif: true };
+const FORM_VIDE: FormState = { nom: '', couleur: Colors.primary, icone: '', niveau: 1, parent_id: null, est_actif: true };
 
 function messageErreur(e: unknown, defaut: string): string {
   const err = e as { response?: { data?: { message?: string } } };
@@ -83,7 +94,7 @@ export default function AdminEmotionsScreen() {
       Alert.alert('Champs requis', 'Le nom est obligatoire.');
       return;
     }
-    if (!/^#([0-9A-Fa-f]{6})$/.test(form.couleur.trim())) {
+    if (!HEX_RE.test(form.couleur.trim())) {
       Alert.alert('Couleur', 'Saisissez une couleur hexadécimale (ex. #000091).');
       return;
     }
@@ -127,7 +138,7 @@ export default function AdminEmotionsScreen() {
   const renderEmotion = (e: Emotion, estEnfant: boolean) => (
     <Card key={e.id} style={[styles.emotionCard, estEnfant && styles.emotionEnfant]}>
       <View style={styles.emotionRow}>
-        <View style={[styles.pastille, { backgroundColor: e.couleur }]}>
+        <View style={[styles.pastille, { backgroundColor: e.couleur }]} accessibilityElementsHidden>
           {e.icone ? <Text style={styles.pastilleIcone}>{e.icone}</Text> : null}
         </View>
         <View style={styles.emotionInfo}>
@@ -195,7 +206,12 @@ export default function AdminEmotionsScreen() {
                     required
                   />
                 </View>
-                <View style={[styles.couleurApercu, { backgroundColor: /^#([0-9A-Fa-f]{6})$/.test(form.couleur) ? form.couleur : Colors.gray[200] }]} />
+                <View
+                  style={[
+                    styles.couleurApercu,
+                    { backgroundColor: HEX_RE.test(form.couleur) ? form.couleur : Colors.gray[200] },
+                  ]}
+                />
               </View>
               <TextField
                 label="Icône (emoji, optionnel)"
@@ -206,8 +222,10 @@ export default function AdminEmotionsScreen() {
               />
 
               <Text style={styles.fieldLabel}>Niveau</Text>
-              <View style={styles.segment}>
+              <View style={styles.segment} accessibilityRole="radiogroup">
                 <Pressable
+                  accessibilityRole="radio"
+                  accessibilityState={{ selected: form.niveau === 1 }}
                   style={[styles.segmentItem, form.niveau === 1 && styles.segmentItemActive]}
                   onPress={() => setForm((f) => ({ ...f, niveau: 1, parent_id: null }))}
                 >
@@ -216,6 +234,8 @@ export default function AdminEmotionsScreen() {
                   </Text>
                 </Pressable>
                 <Pressable
+                  accessibilityRole="radio"
+                  accessibilityState={{ selected: form.niveau === 2 }}
                   style={[styles.segmentItem, form.niveau === 2 && styles.segmentItemActive]}
                   onPress={() => setForm((f) => ({ ...f, niveau: 2 }))}
                 >
@@ -228,7 +248,7 @@ export default function AdminEmotionsScreen() {
               {form.niveau === 2 ? (
                 <>
                   <Text style={styles.fieldLabel}>Émotion parente</Text>
-                  <View style={styles.parentList}>
+                  <View style={styles.parentList} accessibilityRole="radiogroup">
                     {parents.length === 0 ? (
                       <Text style={styles.switchHelper}>Aucune émotion de niveau 1 disponible.</Text>
                     ) : (
@@ -237,6 +257,9 @@ export default function AdminEmotionsScreen() {
                         return (
                           <Pressable
                             key={p.id}
+                            accessibilityRole="radio"
+                            accessibilityState={{ selected: actif }}
+                            accessibilityLabel={p.nom}
                             style={[styles.parentChip, actif && styles.parentChipActive]}
                             onPress={() => setForm((f) => ({ ...f, parent_id: p.id }))}
                           >
@@ -260,6 +283,7 @@ export default function AdminEmotionsScreen() {
                 <Switch
                   value={form.est_actif}
                   onValueChange={(v) => setForm((f) => ({ ...f, est_actif: v }))}
+                  accessibilityLabel="Émotion active dans le tracker"
                   trackColor={{ true: Colors.primary, false: Colors.gray[300] }}
                   thumbColor={Colors.white}
                 />
@@ -285,13 +309,21 @@ const styles = StyleSheet.create({
   emotionCard: { padding: Spacing.md, gap: Spacing.sm },
   emotionEnfant: { marginLeft: Spacing.xl, borderColor: Colors.gray[100] },
   emotionRow: { flexDirection: 'row', alignItems: 'center', gap: Spacing.md },
-  pastille: { width: 36, height: 36, borderRadius: Radius.pill, alignItems: 'center', justifyContent: 'center' },
-  pastilleIcone: { fontSize: 18 },
+  pastille: {
+    width: PASTILLE,
+    height: PASTILLE,
+    borderRadius: Radius.pill,
+    borderWidth: 1,
+    borderColor: Colors.gray[200],
+    alignItems: 'center',
+    justifyContent: 'center',
+  },
+  pastilleIcone: { fontSize: FontSize.lg },
   emotionInfo: { flex: 1 },
   emotionNom: { fontSize: FontSize.md, fontWeight: FontWeight.semibold, color: Colors.black },
   emotionMeta: { fontSize: FontSize.xs, color: Colors.gray[500], marginTop: 2 },
   actions: { flexDirection: 'row', gap: Spacing.sm },
-  modalOverlay: { flex: 1, justifyContent: 'flex-end', backgroundColor: 'rgba(22,22,22,0.4)' },
+  modalOverlay: { flex: 1, justifyContent: 'flex-end', backgroundColor: OVERLAY },
   modalSheet: {
     backgroundColor: Colors.white,
     borderTopLeftRadius: Radius.md,
@@ -312,12 +344,12 @@ const styles = StyleSheet.create({
   couleurRow: { flexDirection: 'row', alignItems: 'flex-start', gap: Spacing.md },
   couleurField: { flex: 1 },
   couleurApercu: {
-    width: 44,
-    height: 44,
+    width: APERCU,
+    height: APERCU,
     borderRadius: Radius.sm,
     borderWidth: 1,
     borderColor: Colors.gray[200],
-    marginTop: 24,
+    marginTop: Spacing.xl,
   },
   segment: {
     flexDirection: 'row',
@@ -344,8 +376,14 @@ const styles = StyleSheet.create({
     backgroundColor: Colors.white,
     minHeight: 44,
   },
-  parentChipActive: { borderColor: Colors.primary, backgroundColor: '#E3E3FD' },
-  parentDot: { width: 14, height: 14, borderRadius: Radius.pill },
+  parentChipActive: { borderColor: Colors.primary, backgroundColor: Tint.primary },
+  parentDot: {
+    width: PARENT_DOT,
+    height: PARENT_DOT,
+    borderRadius: Radius.pill,
+    borderWidth: 1,
+    borderColor: Colors.gray[200],
+  },
   parentChipText: { fontSize: FontSize.sm, color: Colors.gray[600] },
   parentChipTextActive: { color: Colors.primary, fontWeight: FontWeight.semibold },
   switchRow: {

mobile/app/admin/index.tsx

@@ -4,7 +4,12 @@ import { Ionicons } from '@expo/vector-icons';
 import { Card, SectionTitle } from '@/components/ui';
 import { useAdminUtilisateurs, useAdminFeeds, useAdminEmotions } from '@/hooks/useAdmin';
 import { Colors } from '@/lib/colors';
-import { FontSize, FontWeight, Radius, Spacing } from '@/lib/theme';
+import { FontSize, FontWeight, MIN_TOUCH, Radius, Spacing, Tint } from '@/lib/theme';
+
+/** Diamètre du rond d'icône de section (cible tactile confortable). */
+const ICON_CIRCLE = 48;
+/** Largeur minimale de la pastille compteur (alignement des chiffres). */
+const COUNT_MIN_WIDTH = MIN_TOUCH / 2;
 
 interface HubItem {
   href: '/admin/utilisateurs' | '/admin/contenus' | '/admin/emotions';
@@ -83,10 +88,10 @@ const styles = StyleSheet.create({
   card: { padding: Spacing.lg },
   row: { flexDirection: 'row', alignItems: 'center', gap: Spacing.md },
   iconCircle: {
-    width: 48,
-    height: 48,
+    width: ICON_CIRCLE,
+    height: ICON_CIRCLE,
     borderRadius: Radius.md,
-    backgroundColor: '#E3E3FD',
+    backgroundColor: Tint.primary,
     alignItems: 'center',
     justifyContent: 'center',
   },
@@ -98,7 +103,7 @@ const styles = StyleSheet.create({
     fontSize: FontSize.sm,
     fontWeight: FontWeight.bold,
     color: Colors.primary,
-    minWidth: 22,
+    minWidth: COUNT_MIN_WIDTH,
     textAlign: 'right',
   },
 });

mobile/app/admin/utilisateurs.tsx

@@ -26,6 +26,9 @@ import type { Utilisateur } from '@/types';
 const ROLE_MEMBRE = 2;
 const ROLE_ADMIN = 3;
 
+/** Voile sombre derrière la modale (noir DSFR à 40 % d'opacité). */
+const OVERLAY = 'rgba(22, 22, 22, 0.4)';
+
 interface FormState {
   prenom: string;
   nom: string;
@@ -192,8 +195,10 @@ export default function AdminUtilisateursScreen() {
               />
 
               <Text style={styles.fieldLabel}>Rôle</Text>
-              <View style={styles.segment}>
+              <View style={styles.segment} accessibilityRole="radiogroup">
                 <Pressable
+                  accessibilityRole="radio"
+                  accessibilityState={{ selected: form.role_id === ROLE_MEMBRE }}
                   style={[styles.segmentItem, form.role_id === ROLE_MEMBRE && styles.segmentItemActive]}
                   onPress={() => setForm((f) => ({ ...f, role_id: ROLE_MEMBRE }))}
                 >
@@ -202,6 +207,8 @@ export default function AdminUtilisateursScreen() {
                   </Text>
                 </Pressable>
                 <Pressable
+                  accessibilityRole="radio"
+                  accessibilityState={{ selected: form.role_id === ROLE_ADMIN }}
                   style={[styles.segmentItem, form.role_id === ROLE_ADMIN && styles.segmentItemActive]}
                   onPress={() => setForm((f) => ({ ...f, role_id: ROLE_ADMIN }))}
                 >
@@ -234,7 +241,7 @@ const styles = StyleSheet.create({
   email: { fontSize: FontSize.sm, color: Colors.gray[500], marginTop: 2 },
   badges: { flexDirection: 'row', gap: Spacing.sm, flexWrap: 'wrap' },
   actions: { flexDirection: 'row', gap: Spacing.sm, marginTop: Spacing.xs },
-  modalOverlay: { flex: 1, justifyContent: 'flex-end', backgroundColor: 'rgba(22,22,22,0.4)' },
+  modalOverlay: { flex: 1, justifyContent: 'flex-end', backgroundColor: OVERLAY },
   modalSheet: {
     backgroundColor: Colors.white,
     borderTopLeftRadius: Radius.md,

mobile/app/auth/forgot-password.tsx

@@ -3,7 +3,7 @@ import { View, Text, StyleSheet, KeyboardAvoidingView, Platform, ScrollView } fr
 import { useRouter } from 'expo-router';
 import { Ionicons } from '@expo/vector-icons';
 import { Colors } from '@/lib/colors';
-import { FontSize, FontWeight, Radius, Spacing } from '@/lib/theme';
+import { FontSize, FontWeight, ICON_CIRCLE, IconSize, LineHeight, Radius, Spacing, Tint } from '@/lib/theme';
 import { AppBar, Button, Card, TextField } from '@/components/ui';
 
 const EMAIL_REGEX = /^[^\s@]+@[^\s@]+\.[^\s@]+$/;
@@ -33,7 +33,7 @@ export default function ForgotPasswordScreen() {
         <AppBar title="Demande enregistrée" />
         <View style={styles.successWrap}>
           <View style={styles.iconCircle}>
-            <Ionicons name="mail-open" size={32} color={Colors.primary} />
+            <Ionicons name="mail-open" size={IconSize.xl} color={Colors.primary} />
           </View>
           <Text style={styles.successTitle}>Vérifiez votre boîte mail</Text>
           <Text style={styles.successText}>
@@ -102,20 +102,20 @@ export default function ForgotPasswordScreen() {
 const styles = StyleSheet.create({
   container: { flex: 1, backgroundColor: Colors.gray[50] },
   scrollContent: { flexGrow: 1, justifyContent: 'center', padding: Spacing.xl },
-  intro: { fontSize: FontSize.sm, color: Colors.gray[600], lineHeight: 20, marginBottom: Spacing.xl, textAlign: 'center' },
+  intro: { fontSize: FontSize.sm, color: Colors.gray[600], lineHeight: LineHeight.normal, marginBottom: Spacing.xl, textAlign: 'center' },
   backRow: { alignItems: 'center', marginTop: Spacing.sm },
   successWrap: { flex: 1, justifyContent: 'center', alignItems: 'center', padding: Spacing.xl },
   iconCircle: {
-    width: 72,
-    height: 72,
+    width: ICON_CIRCLE,
+    height: ICON_CIRCLE,
     borderRadius: Radius.pill,
-    backgroundColor: '#E3E3FD',
+    backgroundColor: Tint.primary,
     alignItems: 'center',
     justifyContent: 'center',
     marginBottom: Spacing.lg,
   },
   successTitle: { fontSize: FontSize.xl, fontWeight: FontWeight.heavy, color: Colors.black, marginBottom: Spacing.md, textAlign: 'center' },
-  successText: { fontSize: FontSize.sm, color: Colors.gray[600], textAlign: 'center', lineHeight: 20, marginBottom: Spacing.md },
+  successText: { fontSize: FontSize.sm, color: Colors.gray[600], textAlign: 'center', lineHeight: LineHeight.normal, marginBottom: Spacing.md },
   bold: { fontWeight: FontWeight.bold, color: Colors.black },
   successAction: { alignSelf: 'stretch', marginTop: Spacing.lg },
 });

mobile/app/auth/login.tsx

@@ -5,7 +5,7 @@ import { Ionicons } from '@expo/vector-icons';
 import { useAuthStore } from '@/lib/auth-store';
 import { getApiError } from '@/lib/api';
 import { Colors } from '@/lib/colors';
-import { FontSize, FontWeight, Radius, Spacing } from '@/lib/theme';
+import { FontSize, FontWeight, IconSize, Radius, Spacing } from '@/lib/theme';
 import { AppBar, Button, Card, TextField } from '@/components/ui';
 
 export default function LoginScreen() {
@@ -46,8 +46,8 @@ export default function LoginScreen() {
 
         <Card padding={Spacing.xl} elevated>
           {error ? (
-            <View style={styles.errorBanner}>
-              <Ionicons name="alert-circle" size={18} color={Colors.error} />
+            <View style={styles.errorBanner} accessibilityLiveRegion="polite">
+              <Ionicons name="alert-circle" size={IconSize.md} color={Colors.error} />
               <Text style={styles.errorBannerText}>{error}</Text>
             </View>
           ) : null}
@@ -118,7 +118,7 @@ const styles = StyleSheet.create({
     gap: Spacing.sm,
     backgroundColor: Colors.errorBg,
     borderRadius: Radius.sm,
-    borderLeftWidth: 3,
+    borderLeftWidth: Spacing.xs - 1,
     borderLeftColor: Colors.error,
     padding: Spacing.md,
     marginBottom: Spacing.lg,

mobile/app/auth/register.tsx

@@ -5,7 +5,7 @@ import { Ionicons } from '@expo/vector-icons';
 import { useAuthStore } from '@/lib/auth-store';
 import { getApiError } from '@/lib/api';
 import { Colors } from '@/lib/colors';
-import { FontSize, FontWeight, MIN_TOUCH, Radius, Spacing } from '@/lib/theme';
+import { FontSize, FontWeight, IconSize, LineHeight, MIN_TOUCH, Radius, Spacing } from '@/lib/theme';
 import { AppBar, Button, Card, TextField } from '@/components/ui';
 
 const EMAIL_REGEX = /^[^\s@]+@[^\s@]+\.[^\s@]+$/;
@@ -132,7 +132,7 @@ export default function RegisterScreen() {
           >
             <Ionicons
               name={consentement ? 'checkbox' : 'square-outline'}
-              size={24}
+              size={IconSize.lg}
               color={consentement ? Colors.primary : Colors.gray[500]}
               style={styles.consentIcon}
             />
@@ -143,7 +143,7 @@ export default function RegisterScreen() {
           </Pressable>
           {consentError ? (
             <View style={styles.consentErrorRow}>
-              <Ionicons name="alert-circle" size={14} color={Colors.error} />
+              <Ionicons name="alert-circle" size={IconSize.sm} color={Colors.error} />
               <Text style={styles.consentErrorText}>{consentError}</Text>
             </View>
           ) : null}
@@ -185,8 +185,8 @@ const styles = StyleSheet.create({
     paddingVertical: Spacing.sm,
     minHeight: MIN_TOUCH,
   },
-  consentIcon: { marginTop: 1 },
-  consentText: { flex: 1, fontSize: FontSize.xs, color: Colors.black, lineHeight: 19 },
+  consentIcon: { marginTop: Spacing.xs / 4 },
+  consentText: { flex: 1, fontSize: FontSize.xs, color: Colors.black, lineHeight: LineHeight.snug },
   consentLink: { color: Colors.primary, fontWeight: FontWeight.semibold, textDecorationLine: 'underline' },
   consentErrorRow: { flexDirection: 'row', alignItems: 'center', gap: Spacing.xs, marginTop: Spacing.xs },
   consentErrorText: { fontSize: FontSize.xs, color: Colors.error },

mobile/components/EmotionPicker.tsx

@@ -7,6 +7,14 @@ import { Spacing, Radius, FontSize, FontWeight, MIN_TOUCH, HIT_SLOP } from '@/li
 import { Loader } from '@/components/ui';
 import type { Emotion } from '@/types';
 
+/** Dimensions locales (multiples de l'échelle 4px du DSFR). */
+const TILE_MIN_HEIGHT = 92;
+const TILE_EMOJI = 30;
+const BACK_ICON = 16;
+const CHEVRON_ICON = 12;
+const BORDER_DEFAULT = 1.5;
+const BORDER_SELECTED = 2.5;
+
 interface EmotionPickerProps {
   value?: number;
   onChange: (emotionId: number) => void;
@@ -23,8 +31,14 @@ export default function EmotionPicker({ value, onChange }: EmotionPickerProps) {
   if (selectedParent?.enfants && selectedParent.enfants.length > 0) {
     return (
       <View>
-        <TouchableOpacity style={styles.backBtn} hitSlop={HIT_SLOP} onPress={() => setSelectedParent(null)}>
-          <Ionicons name="arrow-back" size={16} color={Colors.primary} />
+        <TouchableOpacity
+          style={styles.backBtn}
+          hitSlop={HIT_SLOP}
+          accessibilityRole="button"
+          accessibilityLabel="Retour aux émotions"
+          onPress={() => setSelectedParent(null)}
+        >
+          <Ionicons name="arrow-back" size={BACK_ICON} color={Colors.primary} />
           <Text style={styles.backText}>Retour aux émotions</Text>
         </TouchableOpacity>
         <Text style={styles.subTitle}>
@@ -85,16 +99,18 @@ function EmotionTile({
     <TouchableOpacity
       style={[
         styles.tile,
-        selected && { borderColor: emotion.couleur, borderWidth: 2.5, backgroundColor: `${emotion.couleur}12` },
+        selected && { borderColor: emotion.couleur, borderWidth: BORDER_SELECTED, backgroundColor: `${emotion.couleur}12` },
       ]}
       onPress={onPress}
-      accessibilityLabel={emotion.nom}
+      accessibilityRole="button"
+      accessibilityState={{ selected }}
+      accessibilityLabel={hasChildren ? `${emotion.nom}, ouvrir les sous-émotions` : emotion.nom}
     >
       <Text style={styles.tileEmoji}>{emotion.icone || '🔵'}</Text>
       <Text style={styles.tileName} numberOfLines={2}>
         {emotion.nom}
       </Text>
-      {hasChildren && <Ionicons name="chevron-down" size={12} color={Colors.gray[400]} style={styles.chevron} />}
+      {hasChildren && <Ionicons name="chevron-down" size={CHEVRON_ICON} color={Colors.gray[400]} style={styles.chevron} />}
     </TouchableOpacity>
   );
 }
@@ -107,7 +123,7 @@ const styles = StyleSheet.create({
   grid: { flexDirection: 'row', flexWrap: 'wrap', gap: Spacing.md, justifyContent: 'space-between' },
   tile: {
     width: '30%',
-    minHeight: 92,
+    minHeight: TILE_MIN_HEIGHT,
     backgroundColor: Colors.white,
     borderRadius: Radius.sm,
     paddingVertical: Spacing.md,
@@ -115,10 +131,10 @@ const styles = StyleSheet.create({
     alignItems: 'center',
     justifyContent: 'center',
     gap: Spacing.xs,
-    borderWidth: 1.5,
+    borderWidth: BORDER_DEFAULT,
     borderColor: Colors.gray[200],
   },
-  tileEmoji: { fontSize: 30 },
+  tileEmoji: { fontSize: TILE_EMOJI },
   tileName: { fontSize: FontSize.xs, fontWeight: FontWeight.semibold, color: Colors.black, textAlign: 'center' },
-  chevron: { marginTop: 2 },
+  chevron: { marginTop: Spacing.xs / 2 },
 });

mobile/components/EmotionPieChart.tsx

@@ -1,6 +1,14 @@
 import { View, Text, StyleSheet } from 'react-native';
 import Svg, { Circle, G, Text as SvgText } from 'react-native-svg';
 import { Colors } from '@/lib/colors';
+import { Spacing, Radius, FontSize, FontWeight } from '@/lib/theme';
+
+/** Dimensions du donut et de sa légende. */
+const CENTER_PCT_SIZE = 30;
+const CENTER_LABEL_SIZE = FontSize.tiny;
+const CENTER_PCT_DY = 6;
+const CENTER_LABEL_DY = 16;
+const LEGEND_DOT = 12;
 
 export interface EmotionPieSlice {
   nom: string;
@@ -84,9 +92,9 @@ export default function EmotionPieChart({
         {/* Centre du donut : part dominante */}
         <SvgText
           x={center}
-          y={center - 6}
-          fontSize={30}
-          fontWeight="800"
+          y={center - CENTER_PCT_DY}
+          fontSize={CENTER_PCT_SIZE}
+          fontWeight={FontWeight.heavy}
           fill={Colors.black}
           textAnchor="middle"
         >
@@ -94,8 +102,8 @@ export default function EmotionPieChart({
         </SvgText>
         <SvgText
           x={center}
-          y={center + 16}
-          fontSize={12}
+          y={center + CENTER_LABEL_DY}
+          fontSize={CENTER_LABEL_SIZE}
           fill={Colors.gray[500]}
           textAnchor="middle"
         >
@@ -111,7 +119,9 @@ export default function EmotionPieChart({
             <Text style={styles.legendName} numberOfLines={1}>
               {item.nom}
             </Text>
-            <Text style={styles.legendPct}>{item.pourcentage}%</Text>
+            <Text style={styles.legendPct}>
+              {item.pourcentage}% · {item.count}
+            </Text>
           </View>
         ))}
       </View>
@@ -120,10 +130,10 @@ export default function EmotionPieChart({
 }
 
 const styles = StyleSheet.create({
-  container: { alignItems: 'center', marginBottom: 20 },
-  legend: { alignSelf: 'stretch', marginTop: 20, gap: 8 },
+  container: { alignItems: 'center', marginBottom: Spacing.lg },
+  legend: { alignSelf: 'stretch', marginTop: Spacing.lg, gap: Spacing.sm },
   legendRow: { flexDirection: 'row', alignItems: 'center' },
-  legendDot: { width: 12, height: 12, borderRadius: 6, marginRight: 10 },
-  legendName: { flex: 1, fontSize: 14, color: Colors.black },
-  legendPct: { fontSize: 14, fontWeight: '700', color: Colors.gray[600] },
+  legendDot: { width: LEGEND_DOT, height: LEGEND_DOT, borderRadius: Radius.pill, marginRight: Spacing.sm },
+  legendName: { flex: 1, fontSize: FontSize.sm, color: Colors.black },
+  legendPct: { fontSize: FontSize.sm, fontWeight: FontWeight.bold, color: Colors.gray[600] },
 });

mobile/components/RepubliqueHeader.tsx

@@ -1,52 +0,0 @@
-import { View, Text, StyleSheet } from 'react-native';
-import { Colors } from '@/lib/colors';
-
-interface RepubliqueHeaderProps {
-  /** Affiche le nom du service (CESIZen) à côté du bloc Marianne. */
-  showService?: boolean;
-}
-
-/**
- * En-tête institutionnel reprenant l'identité visuelle de l'État (DSFR) :
- * bloc « RÉPUBLIQUE / FRANÇAISE » accompagné du nom du service.
- */
-export default function RepubliqueHeader({ showService = true }: RepubliqueHeaderProps) {
-  return (
-    <View style={styles.container}>
-      <View style={styles.marianneBlock}>
-        <Text style={styles.republique}>RÉPUBLIQUE</Text>
-        <Text style={styles.francaise}>FRANÇAISE</Text>
-        <Text style={styles.devise}>Liberté{'\n'}Égalité{'\n'}Fraternité</Text>
-      </View>
-      {showService && (
-        <View style={styles.serviceBlock}>
-          <Text style={styles.serviceName}>CESIZen</Text>
-          <Text style={styles.serviceTagline}>Santé mentale</Text>
-        </View>
-      )}
-    </View>
-  );
-}
-
-const styles = StyleSheet.create({
-  container: {
-    flexDirection: 'row',
-    alignItems: 'center',
-    paddingHorizontal: 16,
-    paddingVertical: 12,
-    backgroundColor: Colors.white,
-    borderBottomWidth: 1,
-    borderBottomColor: Colors.gray[200],
-  },
-  marianneBlock: {
-    paddingRight: 16,
-    borderRightWidth: 1,
-    borderRightColor: Colors.gray[200],
-  },
-  republique: { fontSize: 12, fontWeight: '700', color: Colors.black, letterSpacing: 0.5, lineHeight: 14 },
-  francaise: { fontSize: 12, fontWeight: '700', color: Colors.black, letterSpacing: 0.5, lineHeight: 14 },
-  devise: { fontSize: 8, color: Colors.gray[500], marginTop: 4, lineHeight: 10, fontStyle: 'italic' },
-  serviceBlock: { paddingLeft: 16 },
-  serviceName: { fontSize: 18, fontWeight: '800', color: Colors.primary },
-  serviceTagline: { fontSize: 11, color: Colors.gray[500], marginTop: 1 },
-});

mobile/components/ui/AppBar.tsx

@@ -1,6 +1,6 @@
 import { StyleSheet, Text, View } from 'react-native';
 import { Colors } from '@/lib/colors';
-import { FontSize, FontWeight, Spacing } from '@/lib/theme';
+import { FontSize, FontWeight, LetterSpacing, LineHeight, Spacing } from '@/lib/theme';
 
 interface AppBarProps {
   /** Titre de la page, affiché sous le bandeau institutionnel. */
@@ -17,7 +17,7 @@ interface AppBarProps {
  */
 export default function AppBar({ title, subtitle, right }: AppBarProps) {
   return (
-    <View style={styles.wrapper}>
+    <View style={styles.wrapper} accessibilityRole="header">
       <View style={styles.brandRow}>
         <View style={styles.marianne}>
           <Text style={styles.republique}>RÉPUBLIQUE</Text>
@@ -61,12 +61,12 @@ const styles = StyleSheet.create({
     fontSize: FontSize.tiny,
     fontWeight: FontWeight.bold,
     color: Colors.black,
-    letterSpacing: 0.5,
-    lineHeight: 13,
+    letterSpacing: LetterSpacing.sm,
+    lineHeight: LineHeight.tight,
   },
   serviceBlock: { flex: 1 },
   serviceName: { fontSize: FontSize.lg, fontWeight: FontWeight.heavy, color: Colors.primary },
-  serviceTagline: { fontSize: FontSize.tiny, color: Colors.gray[500], marginTop: 1 },
+  serviceTagline: { fontSize: FontSize.tiny, color: Colors.gray[500], marginTop: Spacing.xs / 4 },
   right: { marginLeft: Spacing.sm },
   titleRow: {
     paddingHorizontal: Spacing.lg,
@@ -74,5 +74,5 @@ const styles = StyleSheet.create({
     paddingTop: Spacing.xs,
   },
   title: { fontSize: FontSize.xxl, fontWeight: FontWeight.bold, color: Colors.black },
-  subtitle: { fontSize: FontSize.sm, color: Colors.gray[500], marginTop: 2 },
+  subtitle: { fontSize: FontSize.sm, color: Colors.gray[500], marginTop: Spacing.xs / 2 },
 });

mobile/components/ui/Badge.tsx

@@ -1,6 +1,6 @@
 import { StyleSheet, Text, View } from 'react-native';
 import { Colors } from '@/lib/colors';
-import { FontSize, FontWeight, Radius, Spacing } from '@/lib/theme';
+import { FontSize, FontWeight, LetterSpacing, Radius, Spacing, Tint } from '@/lib/theme';
 
 type Tone = 'neutral' | 'success' | 'error' | 'info' | 'warning' | 'primary';
 
@@ -14,7 +14,7 @@ interface BadgeProps {
 
 /** Pastille d'état DSFR, taille homogène. */
 export default function Badge({ label, tone = 'neutral', color, uppercase = false }: BadgeProps) {
-  const palette = color ? { bg: hexWithAlpha(color, 0.14), text: darken(color) } : TONES[tone];
+  const palette = color ? { bg: hexWithAlpha(color, 0.14), text: color } : TONES[tone];
   return (
     <View style={[styles.badge, { backgroundColor: palette.bg }]}>
       <Text style={[styles.text, { color: palette.text }, uppercase && styles.uppercase]} numberOfLines={1}>
@@ -28,9 +28,9 @@ const TONES: Record<Tone, { bg: string; text: string }> = {
   neutral: { bg: Colors.gray[100], text: Colors.gray[600] },
   success: { bg: Colors.successBg, text: Colors.success },
   error: { bg: Colors.errorBg, text: Colors.error },
-  info: { bg: '#E8EDFF', text: Colors.info },
-  warning: { bg: '#FFE9C7', text: Colors.warning },
-  primary: { bg: '#E3E3FD', text: Colors.primary },
+  info: { bg: Tint.info, text: Colors.info },
+  warning: { bg: Tint.warning, text: Colors.warning },
+  primary: { bg: Tint.primary, text: Colors.primary },
 };
 
 /** Ajoute un canal alpha (0–1) à une couleur hex #RRGGBB. */
@@ -39,18 +39,13 @@ function hexWithAlpha(hex: string, alpha: number): string {
   return `${hex}${a}`;
 }
 
-/** Pour le texte sur fond teinté, on garde la couleur d'origine (lisible sur 14% d'alpha). */
-function darken(hex: string): string {
-  return hex;
-}
-
 const styles = StyleSheet.create({
   badge: {
     alignSelf: 'flex-start',
     paddingHorizontal: Spacing.sm,
-    paddingVertical: 3,
+    paddingVertical: Spacing.xs - 1,
     borderRadius: Radius.sm,
   },
   text: { fontSize: FontSize.tiny, fontWeight: FontWeight.bold },
-  uppercase: { textTransform: 'uppercase', letterSpacing: 0.5 },
+  uppercase: { textTransform: 'uppercase', letterSpacing: LetterSpacing.sm },
 });

mobile/components/ui/Button.tsx

@@ -1,7 +1,7 @@
 import { ActivityIndicator, Pressable, StyleSheet, Text, View, type StyleProp, type ViewStyle } from 'react-native';
 import { Ionicons } from '@expo/vector-icons';
 import { Colors } from '@/lib/colors';
-import { FontSize, FontWeight, MIN_TOUCH, Radius, Spacing } from '@/lib/theme';
+import { FontSize, FontWeight, MIN_TOUCH, MIN_TOUCH_SM, Radius, Spacing } from '@/lib/theme';
 
 type Variant = 'primary' | 'secondary' | 'danger' | 'tertiary';
 type Size = 'md' | 'sm';
@@ -36,8 +36,9 @@ export default function Button({
 }: ButtonProps) {
   const isDisabled = disabled || loading;
   const palette = VARIANTS[variant];
-  const minHeight = size === 'sm' ? 40 : MIN_TOUCH;
+  const minHeight = size === 'sm' ? MIN_TOUCH_SM : MIN_TOUCH;
   const fontSize = size === 'sm' ? FontSize.sm : FontSize.md;
+  const iconSize = fontSize + Spacing.xs - 1;
 
   return (
     <Pressable
@@ -64,7 +65,7 @@ export default function Button({
         <ActivityIndicator color={palette.text} size="small" />
       ) : (
         <View style={styles.content}>
-          {icon && <Ionicons name={icon} size={fontSize + 3} color={palette.text} />}
+          {icon && <Ionicons name={icon} size={iconSize} color={palette.text} />}
           <Text style={[styles.label, { color: palette.text, fontSize }]}>{title}</Text>
         </View>
       )}

mobile/components/ui/Card.tsx

@@ -1,4 +1,11 @@
-import { Pressable, StyleSheet, View, type StyleProp, type ViewStyle } from 'react-native';
+import {
+  Pressable,
+  StyleSheet,
+  View,
+  type AccessibilityRole,
+  type StyleProp,
+  type ViewStyle,
+} from 'react-native';
 import { Colors } from '@/lib/colors';
 import { Radius, Shadow, Spacing } from '@/lib/theme';
 
@@ -9,18 +16,31 @@ interface CardProps {
   padding?: number;
   /** Légère ombre portée. */
   elevated?: boolean;
+  /** Libellé d'accessibilité (lecteurs d'écran), utile sur une carte cliquable. */
+  accessibilityLabel?: string;
+  /** Rôle d'accessibilité (défaut « button » si cliquable). */
+  accessibilityRole?: AccessibilityRole;
   style?: StyleProp<ViewStyle>;
 }
 
 /** Conteneur DSFR : fond blanc, bordure grise fine, coins peu arrondis. */
-export default function Card({ children, onPress, padding = Spacing.lg, elevated = false, style }: CardProps) {
+export default function Card({
+  children,
+  onPress,
+  padding = Spacing.lg,
+  elevated = false,
+  accessibilityLabel,
+  accessibilityRole,
+  style,
+}: CardProps) {
   const content = [styles.card, { padding }, elevated && Shadow.card, style];
 
   if (onPress) {
     return (
       <Pressable
         onPress={onPress}
-        accessibilityRole="button"
+        accessibilityRole={accessibilityRole ?? 'button'}
+        accessibilityLabel={accessibilityLabel}
         style={({ pressed }) => [content, pressed && styles.pressed]}
       >
         {children}
@@ -28,7 +48,11 @@ export default function Card({ children, onPress, padding = Spacing.lg, elevated
     );
   }
 
-  return <View style={content}>{children}</View>;
+  return (
+    <View style={content} accessibilityRole={accessibilityRole} accessibilityLabel={accessibilityLabel}>
+      {children}
+    </View>
+  );
 }
 
 const styles = StyleSheet.create({

mobile/components/ui/EmptyState.tsx

@@ -1,7 +1,7 @@
 import { StyleSheet, Text, View } from 'react-native';
 import { Ionicons } from '@expo/vector-icons';
 import { Colors } from '@/lib/colors';
-import { FontSize, FontWeight, Radius, Spacing } from '@/lib/theme';
+import { FontSize, FontWeight, ICON_CIRCLE, IconSize, LineHeight, Radius, Spacing, Tint } from '@/lib/theme';
 import Button from './Button';
 
 interface EmptyStateProps {
@@ -17,7 +17,7 @@ export default function EmptyState({ icon = 'document-text-outline', title, mess
   return (
     <View style={styles.container}>
       <View style={styles.iconCircle}>
-        <Ionicons name={icon} size={32} color={Colors.primary} />
+        <Ionicons name={icon} size={IconSize.xl} color={Colors.primary} />
       </View>
       <Text style={styles.title}>{title}</Text>
       {message ? <Text style={styles.message}>{message}</Text> : null}
@@ -33,15 +33,15 @@ export default function EmptyState({ icon = 'document-text-outline', title, mess
 const styles = StyleSheet.create({
   container: { alignItems: 'center', justifyContent: 'center', paddingVertical: Spacing.xxxl, paddingHorizontal: Spacing.xl },
   iconCircle: {
-    width: 72,
-    height: 72,
+    width: ICON_CIRCLE,
+    height: ICON_CIRCLE,
     borderRadius: Radius.pill,
-    backgroundColor: '#E3E3FD',
+    backgroundColor: Tint.primary,
     alignItems: 'center',
     justifyContent: 'center',
     marginBottom: Spacing.lg,
   },
   title: { fontSize: FontSize.lg, fontWeight: FontWeight.bold, color: Colors.black, textAlign: 'center' },
-  message: { fontSize: FontSize.sm, color: Colors.gray[500], textAlign: 'center', marginTop: Spacing.sm, lineHeight: 20 },
+  message: { fontSize: FontSize.sm, color: Colors.gray[500], textAlign: 'center', marginTop: Spacing.sm, lineHeight: LineHeight.normal },
   action: { marginTop: Spacing.xl },
 });

mobile/components/ui/Loader.tsx

@@ -5,7 +5,7 @@ import { FontSize, Spacing } from '@/lib/theme';
 /** Indicateur de chargement centré et homogène, avec libellé optionnel. */
 export default function Loader({ label }: { label?: string }) {
   return (
-    <View style={styles.container}>
+    <View style={styles.container} accessibilityRole="progressbar" accessibilityLabel={label ?? 'Chargement en cours'}>
       <ActivityIndicator size="large" color={Colors.primary} />
       {label ? <Text style={styles.label}>{label}</Text> : null}
     </View>

mobile/components/ui/SectionTitle.tsx

@@ -1,10 +1,14 @@
 import { StyleSheet, Text } from 'react-native';
 import { Colors } from '@/lib/colors';
-import { FontSize, FontWeight, Spacing } from '@/lib/theme';
+import { FontSize, FontWeight, LetterSpacing, Spacing } from '@/lib/theme';
 
 /** Intitulé de section (petites capitales DSFR) au-dessus d'une liste/groupe. */
 export default function SectionTitle({ children }: { children: string }) {
-  return <Text style={styles.title}>{children}</Text>;
+  return (
+    <Text style={styles.title} accessibilityRole="header">
+      {children}
+    </Text>
+  );
 }
 
 const styles = StyleSheet.create({
@@ -13,7 +17,7 @@ const styles = StyleSheet.create({
     fontWeight: FontWeight.bold,
     color: Colors.gray[500],
     textTransform: 'uppercase',
-    letterSpacing: 1,
+    letterSpacing: LetterSpacing.md,
     marginBottom: Spacing.sm,
   },
 });

mobile/components/ui/TextField.tsx

@@ -1,5 +1,6 @@
 import { useState } from 'react';
 import {
+  Pressable,
   StyleSheet,
   Text,
   TextInput,
@@ -11,7 +12,7 @@ import {
 } from 'react-native';
 import { Ionicons } from '@expo/vector-icons';
 import { Colors } from '@/lib/colors';
-import { FontSize, FontWeight, Radius, Spacing } from '@/lib/theme';
+import { FontSize, FontWeight, HIT_SLOP, IconSize, MIN_TOUCH, Radius, Spacing } from '@/lib/theme';
 
 interface TextFieldProps {
   label: string;
@@ -53,7 +54,9 @@ export default function TextField({
   style,
 }: TextFieldProps) {
   const [focused, setFocused] = useState(false);
+  const [revealed, setRevealed] = useState(false);
   const borderColor = error ? Colors.error : focused ? Colors.primary : Colors.gray[600];
+  const isSecure = secureTextEntry && !revealed;
 
   return (
     <View style={[styles.container, style]}>
@@ -61,6 +64,7 @@ export default function TextField({
         {label}
         {required && <Text style={styles.required}> *</Text>}
       </Text>
+      <View style={styles.inputRow}>
         <TextInput
           value={value}
           onChangeText={onChangeText}
@@ -68,24 +72,45 @@ export default function TextField({
           onBlur={() => setFocused(false)}
           placeholder={placeholder}
           placeholderTextColor={Colors.gray[400]}
-        secureTextEntry={secureTextEntry}
+          secureTextEntry={isSecure}
           keyboardType={keyboardType}
           autoCapitalize={autoCapitalize}
           autoComplete={autoComplete}
           multiline={multiline}
           numberOfLines={numberOfLines}
           editable={editable}
+          accessibilityLabel={label}
+          accessibilityState={{ disabled: !editable }}
           style={[
             styles.input,
             { borderBottomColor: borderColor },
+            secureTextEntry && styles.inputWithIcon,
             multiline && styles.multiline,
             !editable && styles.readonly,
           ]}
         />
+        {secureTextEntry ? (
+          <Pressable
+            onPress={() => setRevealed((r) => !r)}
+            hitSlop={HIT_SLOP}
+            style={styles.toggle}
+            accessibilityRole="button"
+            accessibilityLabel={revealed ? 'Masquer le mot de passe' : 'Afficher le mot de passe'}
+          >
+            <Ionicons
+              name={revealed ? 'eye-off-outline' : 'eye-outline'}
+              size={IconSize.lg}
+              color={Colors.gray[500]}
+            />
+          </Pressable>
+        ) : null}
+      </View>
       {error ? (
         <View style={styles.messageRow}>
-          <Ionicons name="alert-circle" size={14} color={Colors.error} />
-          <Text style={styles.errorText}>{error}</Text>
+          <Ionicons name="alert-circle" size={IconSize.sm} color={Colors.error} />
+          <Text style={styles.errorText} accessibilityLiveRegion="polite">
+            {error}
+          </Text>
         </View>
       ) : helper ? (
         <Text style={styles.helperText}>{helper}</Text>
@@ -103,6 +128,7 @@ const styles = StyleSheet.create({
     marginBottom: Spacing.xs,
   },
   required: { color: Colors.error },
+  inputRow: { position: 'relative', justifyContent: 'center' },
   input: {
     backgroundColor: Colors.gray[50],
     borderTopLeftRadius: Radius.sm,
@@ -112,9 +138,16 @@ const styles = StyleSheet.create({
     paddingVertical: Spacing.md,
     fontSize: FontSize.body,
     color: Colors.black,
-    minHeight: 44,
+    minHeight: MIN_TOUCH,
   },
-  multiline: { minHeight: 110, textAlignVertical: 'top' },
+  inputWithIcon: { paddingRight: Spacing.xxl + Spacing.md },
+  toggle: {
+    position: 'absolute',
+    right: Spacing.md,
+    height: MIN_TOUCH,
+    justifyContent: 'center',
+  },
+  multiline: { minHeight: MIN_TOUCH * 2.5, textAlignVertical: 'top' },
   readonly: { color: Colors.gray[500], backgroundColor: Colors.gray[100] },
   messageRow: { flexDirection: 'row', alignItems: 'center', gap: Spacing.xs, marginTop: Spacing.xs },
   errorText: { fontSize: FontSize.xs, color: Colors.error },

mobile/lib/theme.ts

@@ -1,6 +1,8 @@
 // Design tokens centralisés — identité du Système de Design de l'État (DSFR).
 // À utiliser partout au lieu de valeurs « magiques » inline, pour une UI cohérente.
 
+import { Colors } from './colors';
+
 /** Espacements (échelle 4px, comme le DSFR). */
 export const Spacing = {
   xs: 4,
@@ -32,6 +34,30 @@ export const FontSize = {
   display: 32,
 } as const;
 
+/** Hauteurs de ligne (couplées aux tailles de police pour un rythme régulier). */
+export const LineHeight = {
+  tight: 13,
+  snug: 19,
+  normal: 20,
+} as const;
+
+/** Interlettrages (DSFR : capitales légèrement espacées). */
+export const LetterSpacing = {
+  sm: 0.5,
+  md: 1,
+} as const;
+
+/** Tailles d'icône homogènes (Ionicons). */
+export const IconSize = {
+  sm: 14,
+  md: 18,
+  lg: 24,
+  xl: 32,
+} as const;
+
+/** Diamètre du rond d'icône (états vides, succès, en-têtes illustrés). */
+export const ICON_CIRCLE = 72;
+
 /** Graisses (typées pour React Native). */
 export const FontWeight = {
   regular: '400',
@@ -41,17 +67,28 @@ export const FontWeight = {
   heavy: '800',
 } as const;
 
+/**
+ * Fonds teintés DSFR (teintes claires des couleurs d'état / Bleu France),
+ * utilisés pour les pastilles, bandeaux et ronds d'icône. Centralisés ici pour
+ * éviter les codes hexadécimaux en dur dans les écrans et composants.
+ */
+export const Tint = {
+  primary: '#E3E3FD', // Bleu France 925
+  info: '#E8EDFF',
+  warning: '#FFE9C7',
+} as const;
+
 /** Ombres douces, discrètes (le DSFR reste sobre). */
 export const Shadow = {
   card: {
-    shadowColor: '#161616',
+    shadowColor: Colors.black,
     shadowOffset: { width: 0, height: 1 },
     shadowOpacity: 0.06,
     shadowRadius: 4,
     elevation: 1,
   },
   raised: {
-    shadowColor: '#161616',
+    shadowColor: Colors.black,
     shadowOffset: { width: 0, height: 4 },
     shadowOpacity: 0.12,
     shadowRadius: 10,
@@ -62,5 +99,8 @@ export const Shadow = {
 /** Cible tactile minimale recommandée (accessibilité). */
 export const MIN_TOUCH = 44;
 
+/** Cible tactile réduite pour les contrôles « petits » (toujours confortable). */
+export const MIN_TOUCH_SM = 40;
+
 /** hitSlop standard pour agrandir la zone cliquable des petites icônes. */
 export const HIT_SLOP = { top: 10, bottom: 10, left: 10, right: 10 } as const;