Smartphone lock screen with a blurred dark background, numeric keypad with digits 0-9 and corresponding letters (e.g., '2' with 'ABC'), four dots at the top for a four-digit password entry, 'EMERGENCY' button on the bottom left, 'BACK' button on the bottom right, modern UI design.
An Op Art illusionary grid of [SUBJECT], with geometric patterns creating optical illusions and a sense of depth and movement. Utilize a precise color scheme of [COLOR1], [COLOR2], and [COLOR3] to maximize the visual impact and sense of instability.
High-quality smartphone wallpaper, 8K ultra HD, dark marble texture with glowing gold veins, luxurious and modern, polished surface, soft lighting, sleek and professional design, minimalistic elegance
