Create one finished standalone photographic website background image, 21:9 ultrawide, approximately 2520 by 1080 pixels. Theme: Celestial hours. Scene: A panoramic moonlit cloudbank resembles a quiet silver tide across the very bottom, with a tiny moon near the far right. Art direction: Poetic cinematic sky photography with credible atmospheric scattering, detailed clouds and tranquil light. Midnight navy, pale ivory and cool silver with occasional muted apricot. No purple, no astrology symbols. Composition: retain generous low-detail top space suitable for overlaying website copy, adapting subject placement naturally. This is the actual background artwork, not a website mockup. No text, letters, typography, logos, borders, collages, grids or watermarks. Full-bleed, polished, richly detailed at native resolution.