Relocate A/B button positions in portrait layout

style.css

@@ -203,7 +203,6 @@ html, body {
 
 /* ── PORTRAIT: two panels fixed at bottom ── */
 @media (orientation: portrait) {
-
   #gba-left, #gba-right {
     position: fixed;
     bottom: 0;
@@ -214,7 +213,7 @@ html, body {
 
   #gba-left {
     left: 0;
-    width: 52%;
+    width: 65%;
     justify-content: space-evenly;
     align-items: center;
     padding: 0 8px max(8px,var(--safe-bottom)) clamp(8px,3vw,20px);
@@ -222,9 +221,8 @@ html, body {
 
   #gba-right {
     right: 0;
-    width: 48%;
+    width: 35%;
-    justify-content: flex-start;
+    justify-content: center;
-    align-items: center;
     padding: 0 clamp(8px,3vw,20px) max(8px,var(--safe-bottom)) 8px;
   }
 
@@ -234,20 +232,6 @@ html, body {
     margin-top: 0;
     width: auto;
   }
-
-  .ab-cluster {
-    transform: translateX(-18px);
-  }
-
-  .ab-b {
-    left: -20%;
-    bottom: 22%;
-  }
-
-  .ab-a {
-    right: -10%;
-    top: 12%;
-  }
 }
 
 @media (min-width: 900px) {