Luminous Waves of Violet and Magenta

abstract digital background of luminous flowing wave bands, layered violet and magenta light ribbons sweeping horizontally across a dark purple field, soft sine-wave curves with bright glowing crests, vertical ribbed scanline texture covering the entire image, subtle grid-like fabric pattern, smooth gradient shadows, high contrast neon purple illumination, glossy futuristic energy waveform, minimal composition, no objects or text, crisp digital art, atmospheric glow, deep indigo edges