„Viele Menschen genießen dank finanzieller Absicherung durch das Rentensystem und guter gesundheitlicher Versorgung ihr Rentnerdasein.“
In this sentence I cannot understand why adjectives - 'guter' and' gesundheitlicher' have er in the end even though nouns are feminine and in nominative case. Same goes with " finanzieller Absicherung" again feminine noun in nominative but er in the end. What am I missing?