diff --git a/.gitattributes b/.gitattributes
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index 0000000..085e897
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+# Keep LF in the repository AND in working copies, on every platform.
+# The Docker images are built from these files on Linux: a CRLF entrypoint,
+# shell script or config silently breaks the build ("bad interpreter").
+* text=auto eol=lf
+
+# Binary assets: never touch.
+*.png binary
+*.jpg binary
+*.jpeg binary
+*.gif binary
+*.ico binary
+*.woff binary
+*.woff2 binary
+*.pdf binary
+
+# Windows-only helpers legitimately keep CRLF.
+*.bat text eol=crlf
+*.cmd text eol=crlf
+*.ps1 text eol=crlf