Design a futuristic floating architecture concept that harmonizes seamlessly with aquatic environments. The structure should integrate sustainable solutions for rising sea levels and water scarcity, utilizing renewable energy sources, advanced water recycling systems, and innovative materials. Focus on creating multi-functional spaces for living, working, and recreation, emphasizing biophilic design principles and a visually striking, organic form inspired by marine ecosystems. Showcase a balanced coexistence of human habitation and nature, with panoramic water views, green roofs, and underwater observation decks.