Design an original polished editorial poster, vertical 3:4. A vivid yellow lemon slice and translucent sparkling water droplets form one bold photographic centerpiece on a cobalt-blue background. Pair this with oversized elegant cream condensed sans-serif typography. Exact headline near the top: "A TASTE OF SUMMER". Exact small footer: "FRESH IDEAS. BRIGHT DAYS.". Render both phrases clearly and exactly once. Refined magazine art direction, crisp print-ready hierarchy, substantial margins, playful but sophisticated, realistic citrus pulp and glistening bubbles. No other text, brand logos, watermarks, borders or mockup frame.