Effetto VFX Parete di Fuoco Orizzontale

High-resolution cinematic VFX fire effect asset: a wide horizontal wall of intense flames rising from the bottom edge across the full width of the frame, isolated on a [pure black] background. The fire features brilliant yellow-white cores, saturated orange and red outer tongues, and subtle semi-transparent smoky heat distortion wisps fading upward into darkness. Composition features [tall varied flame peaks] with irregular curling motion, including twisting flame columns at the left, center, and right, over a dense low flame band along the base. Abundant glowing ember particles and tiny spark specks float upward above the flames. High contrast, sharp detail, realistic turbulent motion, compositing element aesthetic, no ground surface, no objects, no text, no border, using a [yellow, white, orange, and red] color palette.