Rows of hex and binary scrolling in alternating directions behind the content.

Each row generates its own string once — a mix of single bits, two-digit hex bytes and four-digit words — then scrolls it at its own speed with its own start offset, so no two rows line up and the field never tiles. Direction alternates per row at random, which is what stops the whole block reading as one sliding sheet. Every third row takes the accent hue and the rest the secondary, with alpha alternating between rows, so depth comes from contrast rather than blur. The frame is filled with a translucent ground each tick, leaving a short comet behind each line of text.