A tear in spacetime: a glowing event ring wraps a swirling membrane, with log-spiral filaments winding out of it like magnetic field lines and a rippling interior that hints at the other side. The membrane is layered twisted sine bands running through an IQ cosine palette, so colour shifts continuously from cyan through violet to magenta as it churns; the ring pulses, and sparks blink around its rim at random. It rotates gently on its own — scroll to spin it up, hover to warp the ring into a lobe pulled toward the cursor and torque the swirl, and press to force the portal open wider and brighter.