style(game): scene dissolves to shadow + fog (O2 — one image, no rectangle)

styles.css

@@ -1412,8 +1412,8 @@ footer { display: none !important; }
     background-position: center 40%;
     background-repeat: no-repeat;
     filter: grayscale(1) brightness(0.46);
-    -webkit-mask: radial-gradient(ellipse 80% 82% at 50% 46%, #000 26%, transparent 90%);
-    mask: radial-gradient(ellipse 80% 82% at 50% 46%, #000 26%, transparent 90%);
+    -webkit-mask: radial-gradient(ellipse 80% 82% at 50% 46%, #000 18%, transparent 88%);
+    mask: radial-gradient(ellipse 80% 82% at 50% 46%, #000 18%, transparent 88%);
     z-index: 1;
     pointer-events: none;
 }
@@ -1435,7 +1435,7 @@ footer { display: none !important; }
     inset: 0;
     pointer-events: none;
     z-index: 3;
-    box-shadow: inset 0 0 170px 45px rgba(0,0,0,0.6);
+    box-shadow: inset 0 0 210px 90px rgba(5,4,10,0.92);
 }
 
 /* rising ground fog — dissolves the child's lower half */
@@ -1443,13 +1443,13 @@ footer { display: none !important; }
     position: fixed;
     left: var(--band-h); right: var(--band-h);   /* confined to the frame width */
     bottom: var(--band-v);                        /* rises from the frame's base */
-    height: calc(var(--fh) * 0.46);
+    height: calc(var(--fh) * 0.55);
     z-index: 5;                 /* above the child (z-index 4) so it veils the legs */
     pointer-events: none;
     background: linear-gradient(transparent,
-                rgba(150,150,165,0.07) 45%,
-                rgba(180,180,196,0.13) 78%,
-                rgba(190,190,205,0.20));
+                rgba(150,150,168,0.10) 50%,
+                rgba(170,170,190,0.18) 80%,
+                rgba(180,180,200,0.26));
     -webkit-mask: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
     mask: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
 }