Avoid placing source CSS in static directories
mainDo not point TAILWIND_CLI_SRC_CSS or any files in TAILWIND_CLI_CSS_MAP to locations inside your STATICFILES_DIRS.
WhiteNoise (via Django's ManifestStaticFilesStorage) rewrites @import statements in CSS files. Because Tailwind source files often use @import "tailwindcss";, WhiteNoise will attempt to find a file named tailwindcss in your static directories and fail with a whitenoise.storage.MissingFileError.
Keep your source CSS in a directory outside of your static paths (the default .django_tailwind_cli/ is safe).