Mood: The mood of the video appears to be energetic and vibrant, with a sense of style and glamour. The theme seems to be centered around fashion and music, with the title 'Designer' suggesting a focus on high-end fashion or a stylish lifestyle. The overall emotion evoked is one of excitement and playfulness, with a hint of sophistication.

Environment: The environment appears to be a modern, urban setting with a sleek and contemporary aesthetic. The background features a staircase and metallic railings, suggesting a high-end location such as a luxury building or a fashionable nightclub. The use of bright colors and bold lighting adds to the energetic and lively atmosphere.