Renomme la marque en Gauthier Chombart & Nathan Chauwin et finalise le jeu Memory

Header, footer, titres et balises meta de toutes les pages actives : remplace NextGN Formation par Gauthier Chombart & Nathan Chauwin. Nouveau pied de page uniforme mentionnant les droits reserves et le statut de formateurs independants (dossier archives/ laisse inchange).

Integre aussi la refonte du jeu Memory (CSS/JS/HUD/leaderboard) et ajoute le rapport de veille Certibiocide semaine 28.

exercices/memory-pictogrammes/assets/css/leaderboard.css

@@ -2,19 +2,22 @@
    LEADERBOARD & PLAYER STATS
    ============================================ */
 
-.leaderboard-section {
-    margin-top: 80px;
+.leaderboard-panel {
     animation: fadeInUp 0.6s ease-out 0.6s both;
     text-align: center;
 }
 
-.leaderboard-section h2 {
+.stats-panel {
+    animation: fadeInUp 0.6s ease-out 0.6s both;
+}
+
+.leaderboard-panel h2 {
     font-family: 'Syne', sans-serif;
-    font-size: clamp(24px, 5vw, 32px);
+    font-size: clamp(20px, 4vw, 26px);
     font-weight: 800;
     letter-spacing: -0.5px;
     color: var(--text);
-    margin: 0 auto 32px;
+    margin: 0 auto 24px;
     padding-bottom: 12px;
     border-bottom: 3px solid var(--amber-mid);
     display: inline-block;
@@ -78,12 +81,11 @@
 }
 
 .rank-item {
-    display: grid;
-    grid-template-columns: 50px 1fr auto auto;
-    align-items: center;
-    gap: 16px;
+    display: flex;
+    flex-direction: column;
+    gap: 8px;
     background: var(--white);
-    padding: 16px;
+    padding: 14px;
     border-radius: 8px;
     transition: all 0.3s ease;
     border-left: 4px solid var(--amber-light);
@@ -91,6 +93,13 @@
     overflow: hidden;
 }
 
+.rank-top {
+    display: flex;
+    align-items: center;
+    justify-content: space-between;
+    gap: 12px;
+}
+
 .rank-item::before {
     content: '';
     position: absolute;
@@ -121,30 +130,16 @@
     font-family: 'Syne', sans-serif;
 }
 
-.rank-number.medal-1 {
-    font-size: 24px;
-}
-
-.rank-number.medal-1::before {
-    content: '🥇';
-    display: block;
-}
-
-.rank-number.medal-2::before {
-    content: '🥈';
-    display: block;
-    font-size: 20px;
-}
-
-.rank-number.medal-3::before {
-    content: '🥉';
-    display: block;
-    font-size: 20px;
+.rank-number.medal-1,
+.rank-number.medal-2,
+.rank-number.medal-3 {
+    font-size: 22px;
 }
 
 /* Infos joueur */
 .rank-info {
     flex: 1;
+    min-width: 0;
 }
 
 .player-name {
@@ -152,13 +147,16 @@
     color: var(--text);
     margin-bottom: 4px;
     font-size: 14px;
+    white-space: nowrap;
+    overflow: hidden;
+    text-overflow: ellipsis;
 }
 
 .rank-meta {
-    font-size: 12px;
+    font-size: 11px;
     color: var(--text-muted);
     display: flex;
-    gap: 12px;
+    gap: 10px;
     flex-wrap: wrap;
 }
 
@@ -172,38 +170,10 @@
 .rank-score {
     font-weight: 700;
     color: var(--amber-dark);
-    font-size: 18px;
+    font-size: 16px;
     font-family: 'Syne', sans-serif;
-    min-width: 60px;
     text-align: right;
-}
-
-.rank-difficulty {
-    font-size: 11px;
-    font-weight: 600;
-    text-transform: uppercase;
-    letter-spacing: 0.05em;
-    padding: 4px 8px;
-    border-radius: 4px;
-    background: var(--amber-light);
-    color: var(--amber-dark);
-    min-width: 60px;
-    text-align: center;
-}
-
-.rank-difficulty.easy {
-    background: #C8E6C9;
-    color: #2E7D32;
-}
-
-.rank-difficulty.normal {
-    background: var(--amber-light);
-    color: var(--amber-dark);
-}
-
-.rank-difficulty.hard {
-    background: #FFCCBC;
-    color: #D84315;
+    flex-shrink: 0;
 }
 
 /* Message si pas de scores */
@@ -249,7 +219,7 @@
 
 .stats-grid {
     display: grid;
-    grid-template-columns: repeat(4, 1fr);
+    grid-template-columns: repeat(2, 1fr);
     gap: 12px;
 }
 
@@ -329,28 +299,19 @@
    RESPONSIVE DESIGN
    ============================================ */
 @media (max-width: 768px) {
-    .leaderboard-section h2 {
+    .leaderboard-panel h2 {
         font-size: 24px;
     }
-    
+
     .tabs {
         gap: 6px;
     }
-    
+
     .tab-btn {
         padding: 8px 16px;
         font-size: 11px;
     }
-    
-    .rank-item {
-        grid-template-columns: 40px 1fr auto;
-        gap: 12px;
-    }
-    
-    .rank-difficulty {
-        display: none;
-    }
-    
+
     .rank-number {
         font-size: 16px;
     }
@@ -402,17 +363,10 @@
     }
     
     .rank-item {
-        grid-template-columns: 40px 1fr;
-        gap: 10px;
+        gap: 8px;
         padding: 12px;
     }
-    
-    .rank-score {
-        grid-column: 1 / -1;
-        text-align: left;
-        margin-top: 8px;
-    }
-    
+
     .rank-number {
         font-size: 14px;
     }