Ultra-realistic luxury editorial photo of an exquisite signature cocktail in an elegant, refined crystal glass (sleek, high-end design with delicate etched patterns and flawless transparency), filled with vibrant sapphire-blue liquid and perfectly cut transparent ice cubes. The rim is elegantly frosted with fine sparkling sugar crystals. Beside the glass, a rare small yellow citrus fruit is artfully positioned, emphasizing exclusivity and premium appeal. A delicate sprinkle of glimmering sugar crystals is scattered around the base, catching the light for a subtle, luxurious sparkle. The scene is bathed in cinematic lighting with dramatic highlights and soft shadows, producing a glossy magazine aesthetic. Background is a rich deep blue gradient with subtle shadows, evoking sophistication and luxury. Hyper-detailed reflections on the glass, luxurious textures, and a premium gastronomic cocktail photography style. Captured with Canon EOS R5 + RF 85mm f/1.2L lens, ultra-sharp focus, shallow depth of field, HDR glow.