A flat 2D graphic design for a long horizontal panoramic signage banner, ultra-wide aspect ratio 3:1. High-contrast cinematic dynamic concept, isolated on a backdrop that transitions from deep matte graphite-black on the left to pure solid white on the right. A powerful, beautiful sweeping vortex of photorealistic sparkling snowflakes, frosted ice particles, and winter wind trails blows from left to right across the center. The snowstorm visually "erases" the dark background, leaving a crystal-clean white surface on the right side. On the clean white area, sleek modern typography text perfectly reads "УБОРКА ПОД КЛЮЧ" in a deep ice-blue color, featuring a stylized key symbol. High contrast, sharp detail, commercial print template, no mockups, no environment --ar 3:1
