Ultra-premium FIFA World Cup 2026 poster in a luxury 3D layered geometric design style. Vertical smartphone wallpaper format (9:16). Deep matte black background with elegant gold metallic outlines and beveled abstract geometric panels arranged symmetrically around the composition. The central focus is the official-style national football federation crest of Croatia, rendered as a high-end embossed 3D emblem with realistic metallic gold detailing and national colors. Above the crest, display 0 gold championship stars. Below the crest, place large premium gold typography displaying Croatia. Under the country name, position a highly detailed realistic golden FIFA World Cup trophy with cinematic reflections and museum-quality lighting. At the bottom, elegant gold text reading “FIFA WORLD CUP 2026”. Use the national color palette of Croatia throughout the geometric elements while maintaining the luxury black-and-gold theme. Ultra-clean composition, premium sports branding aesthetic, luxury poster design, metallic textures, soft shadows, depth, symmetry, embossed details, cinematic studio lighting, photorealistic 3D rendering, high contrast, award-winning graphic design, ultra-sharp focus, 8K, masterpiece, premium collectible poster, modern minimal luxury style