Title: Deep Listening
Exact creative prompt: Build an atmospheric offline ocean-acoustics art instrument in one HTML file. Use blackened sea green, acid-sage waveforms, large light sans-serif and italic serif typography, fine oscilloscope grid lines and hydrophone metadata. Render layered breathing waves in canvas, provide a frequency slider and freeze/resume button, respect reduced motion and explicitly describe the visualization as synthetic with no audio. Keep mobile polished.
Description: A fictional hydrophone station transforms deep-sea listening into an elegant visual signal study.
Major visual techniques: Animated canvas wave interference; translucent waveform layers; oscilloscope grid; contrasting italic serif; restrained luminous green.
Interaction model: Adjust signal frequency and freeze or resume the animation.