diff --git a/app/middleware.ts b/app/middleware.ts
index a6e4931..f329ddd 100644
--- a/app/middleware.ts
+++ b/app/middleware.ts
@@ -1,41 +1,35 @@
 import { NextRequest, NextResponse } from 'next/server'
 
-const VARIANTS = ['a', 'b', 'c', 'd', 'e'] as const
-const THEMES = ['baseline', 'operator-dark', 'operator-light', 'library'] as const
+// Live A/B copy test: two finalists, both in the impeccable design, so COPY is
+// the only variable.
+//   bi → /bi  (Version B copy: outcome-first + the 80-second Odoo demo)
+//   di → /di  (Version D copy: show-the-magic + L1/L2/L3 escalation)
+// The cream A/C and the old cream B/D + the /e variant are retired from the
+// random rotation (still reachable by direct URL). The /bi and /di pages have a
+// fixed design and ignore the theme switcher, so no theme rotation here.
+const VARIANTS = ['bi', 'di'] as const
 const VARIANT_COOKIE = 'kc-landing-variant'
-const THEME_COOKIE = 'kc-landing-theme'
 
 export function middleware(request: NextRequest) {
   const { pathname } = request.nextUrl
 
   if (pathname !== '/') return NextResponse.next()
 
-  const existingVariant = request.cookies.get(VARIANT_COOKIE)?.value
-  const existingTheme = request.cookies.get(THEME_COOKIE)?.value
-
-  const variant = VARIANTS.includes(existingVariant as any)
-    ? existingVariant!
+  const existing = request.cookies.get(VARIANT_COOKIE)?.value
+  const variant = VARIANTS.includes(existing as any)
+    ? existing!
     : VARIANTS[Math.floor(Math.random() * VARIANTS.length)]
 
-  const theme = THEMES.includes(existingTheme as any)
-    ? existingTheme!
-    : THEMES[Math.floor(Math.random() * THEMES.length)]
-
-  const maxAge = 60 * 60 * 24 * 30
-
-  if (variant === 'a') {
-    const response = NextResponse.next()
-    if (!existingVariant) response.cookies.set(VARIANT_COOKIE, variant, { maxAge, path: '/' })
-    if (!existingTheme) response.cookies.set(THEME_COOKIE, theme, { maxAge, path: '/' })
-    return response
-  }
-
   const url = request.nextUrl.clone()
   url.pathname = `/${variant}`
   const response = NextResponse.rewrite(url)
 
-  if (!existingVariant) response.cookies.set(VARIANT_COOKIE, variant, { maxAge, path: '/' })
-  if (!existingTheme) response.cookies.set(THEME_COOKIE, theme, { maxAge, path: '/' })
+  if (!VARIANTS.includes(existing as any)) {
+    response.cookies.set(VARIANT_COOKIE, variant, {
+      maxAge: 60 * 60 * 24 * 30,
+      path: '/',
+    })
+  }
 
   return response
 }