make book animation less strong

app/src/content/embeds/banner.html

@@ -293,7 +293,7 @@
 
         // Page-top perspective: we're looking from slightly above
         const pageTopBase = Math.max(3, bookAreaH * 0.08);    // default visible depth
-        const pageTopHover = Math.max(6, bookAreaH * 0.22);   // deeper on hover
+        const pageTopHover = Math.max(6, bookAreaH * 0.15);   // deeper on hover
         const pageInset = Math.max(1, bookAreaH * 0.008);     // trapezoid inset
 
         // --- Pack books onto shelves ---
@@ -581,7 +581,7 @@
         });
 
         // --- Tilt transform: compress spine Y from bottom to simulate tilting forward ---
-        const tiltSy = 0.75;
+        const tiltSy = 0.9;
         function tiltTransform(d) {
           const cx = d.bx + d.bw / 2;
           const bot = d.by + d.bh;