diff --git a/css/style.css b/css/style.css
index 8c8ee66..0de24fe 100644
--- a/css/style.css
+++ b/css/style.css
@@ -1110,41 +1110,30 @@ ul.ms1-menu-compte li a:hover, ul.ms1-menu-compte li a:active {
     cursor:pointer;
     user-select:none;
     overflow:hidden;
-    transition:background .15s ease, border-color .15s ease, box-shadow .15s ease;
+    transition:background .15s ease, border-color .15s ease, box-shadow .15s ease, color .15s ease;
 }
 
-/* MSIN-4440 — Liseré haut des tuiles (relief, cohérent avec le panneau détail). */
-#module-bib .bib-tool-btn::before{
-    content:'';
-    position:absolute;
-    top:0;
-    left:0;
-    right:0;
-    height:3px;
-    background:rgba(255,255,255,.38);
-    pointer-events:none;
-}
-
-#module-bib .bib-tool-btn:hover::before,
-#module-bib .bib-tool-btn:focus::before{
-    background:rgba(255,255,255,.5);
-}
-
-#module-bib .bib-tool-btn.is-active::before{
-    height:4px;
-    background:rgba(255,255,255,.72);
-}
-
-#module-bib .bib-tool-btn:hover,
-#module-bib .bib-tool-btn:focus{
+/* Tuile outil — repos : bleu uni ; survol : relief ; actif : fond blanc + bordure bleue. */
+#module-bib .bib-tool-btn:not(.is-active):hover,
+#module-bib .bib-tool-btn:not(.is-active):focus{
     background:#2852b8;
     color:#fff;
+    box-shadow:0 2px 8px rgba(47,95,208,.35);
     outline:none;
 }
 
 #module-bib .bib-tool-btn.is-active{
-    border-color:#fff;
-    box-shadow:0 0 0 2px #2f5fd0, 0 4px 12px rgba(47,95,208,.25);
+    background:#fff;
+    color:#2f5fd0;
+    border-color:#2f5fd0;
+    box-shadow:0 2px 10px rgba(47,95,208,.15);
+}
+
+#module-bib .bib-tool-btn.is-active:hover,
+#module-bib .bib-tool-btn.is-active:focus{
+    background:#fff;
+    color:#2f5fd0;
+    outline:none;
 }
 
 #module-bib .bib-tool-btn--alt{
@@ -1154,25 +1143,26 @@ ul.ms1-menu-compte li a:hover, ul.ms1-menu-compte li a:active {
     font-weight:600;
 }
 
-#module-bib .bib-tool-btn--alt::before{
-    background:rgba(47,95,208,.28);
-}
-
-#module-bib .bib-tool-btn--alt:hover::before,
-#module-bib .bib-tool-btn--alt:focus::before,
-#module-bib .bib-tool-btn--alt.is-active::before{
-    background:#2f5fd0;
-}
-
-#module-bib .bib-tool-btn--alt:hover,
-#module-bib .bib-tool-btn--alt:focus{
+#module-bib .bib-tool-btn--alt:not(.is-active):hover,
+#module-bib .bib-tool-btn--alt:not(.is-active):focus{
     background:#e8f0f8;
     color:#212529;
+    box-shadow:0 2px 8px rgba(47,95,208,.18);
+    outline:none;
 }
 
 #module-bib .bib-tool-btn--alt.is-active{
+    background:#fff;
+    color:#2f5fd0;
     border-color:#2f5fd0;
-    box-shadow:0 0 0 2px rgba(47,95,208,.35), 0 4px 12px rgba(47,95,208,.12);
+    box-shadow:0 2px 10px rgba(47,95,208,.15);
+}
+
+#module-bib .bib-tool-btn--alt.is-active:hover,
+#module-bib .bib-tool-btn--alt.is-active:focus{
+    background:#fff;
+    color:#2f5fd0;
+    outline:none;
 }
 
 #module-bib .bib-tool-btn__main{
@@ -1257,6 +1247,22 @@ ul.ms1-menu-compte li a:hover, ul.ms1-menu-compte li a:active {
     border-color:#fff;
 }
 
+#module-bib .bib-tool-btn.is-active:not(.bib-tool-btn--alt) .btn-aide-bib,
+#module-bib .bib-tool-btn.is-active:not(.bib-tool-btn--alt) .bib-aide-trigger{
+    border:1px solid #2f5fd0;
+    background:#fff;
+    color:#2f5fd0;
+}
+
+#module-bib .bib-tool-btn.is-active:not(.bib-tool-btn--alt) .btn-aide-bib:hover,
+#module-bib .bib-tool-btn.is-active:not(.bib-tool-btn--alt) .bib-aide-trigger:hover,
+#module-bib .bib-tool-btn.is-active:not(.bib-tool-btn--alt) .btn-aide-bib:focus,
+#module-bib .bib-tool-btn.is-active:not(.bib-tool-btn--alt) .bib-aide-trigger:focus{
+    background:#e8f0fc;
+    color:#1e4a9e;
+    border-color:#2f5fd0;
+}
+
 /* (?) sur tuile grise (assignation globale). */
 #module-bib .bib-tool-btn--alt .btn-aide-bib,
 #module-bib .bib-tool-btn--alt .bib-aide-trigger{
@@ -1279,11 +1285,11 @@ ul.ms1-menu-compte li a:hover, ul.ms1-menu-compte li a:active {
 #module-bib .bib-tool-detail{
     position:relative;
     margin-top:8px;
-    border:1px solid #c8d6e5;
+    border:2px solid #2f5fd0;
     border-radius:8px;
-    background:#f0f5fc;
+    background:#fff;
     overflow:hidden;
-    box-shadow:inset 0 1px 0 rgba(255,255,255,.6);
+    box-shadow:0 2px 10px rgba(47,95,208,.12);
 }
 
 #module-bib .bib-tool-detail__header{
@@ -1294,18 +1300,10 @@ ul.ms1-menu-compte li a:hover, ul.ms1-menu-compte li a:active {
     gap:10px;
     padding:8px 12px;
     font-size:14px;
-    border-bottom:1px solid rgba(255,255,255,.15);
-}
-
-#module-bib .bib-tool-detail__header::before{
-    content:'';
-    position:absolute;
-    top:0;
-    left:0;
-    right:0;
-    height:3px;
-    background:rgba(255,255,255,.42);
-    pointer-events:none;
+    font-weight:700;
+    color:#2f5fd0;
+    background:#fff;
+    border-bottom:1px solid #e8f0fc;
 }
 
 #module-bib .bib-tool-detail__title{
diff --git a/php/inc_settings.php b/php/inc_settings.php
index 3da1c45..bd03d4c 100644
--- a/php/inc_settings.php
+++ b/php/inc_settings.php
@@ -7,7 +7,7 @@
  * Constantes *
  *
  **************/
-define('_VERSION_CODE', '4.72.776');
+define('_VERSION_CODE', '4.72.777');
 define('_DATE_CODE', '2026-07-09');
 //MSIN-4290
 define('QR_SECRET_KEY', 'ms1_qr_2026_cle_secrete_longue_et_fixe');