diff --git a/.github/workflows/frontend-pages.yml b/.github/workflows/frontend-pages.yml
index bda029d..d6af8aa 100644
--- a/.github/workflows/frontend-pages.yml
+++ b/.github/workflows/frontend-pages.yml
@@ -115,9 +115,11 @@ jobs:
           # Prefer manual input, then repo variable, fallback to repo-name
           INPUT_NAME='${{ inputs.project_name }}'
           VAR_NAME='${{ vars.CF_PAGES_PROJECT_NAME }}'
-          if [ -n "$INPUT_NAME" ]; then PNAME="$INPUT_NAME"; 
-          elif [ -n "$VAR_NAME" ]; then PNAME="$VAR_NAME"; 
-          else PNAME="${GITHUB_REPOSITORY##*/}-frontend"; fi
+          if [ -n "$INPUT_NAME" ]; then PNAME_RAW="$INPUT_NAME"; 
+          elif [ -n "$VAR_NAME" ]; then PNAME_RAW="$VAR_NAME"; 
+          else PNAME_RAW="${GITHUB_REPOSITORY##*/}-frontend"; fi
+          # Normalize project name to lowercase to satisfy Cloudflare Pages naming
+          PNAME="${PNAME_RAW,,}"
           # Determine branch for Pages
           if [ "${INPUT_MODE}" = "pr" ]; then
             if [ -z "${INPUT_PR}" ]; then echo "pr_number is required when mode=pr"; exit 1; fi