Title: Abyss — Listen to the Deep Exact creative prompt: Create a cinematic deep-ocean sonar research interface called Abyss in one offline HTML file. Navy-black graph-paper background, pale cyan telemetry, large circular radar with rings, crosshairs and a rotating conic-gradient sweep. Arrange mission copy and depth on the left, radar in the center, contact analysis on the right. Three keyboard-accessible signal buttons should reveal different fictional ocean contacts, bearings and frequencies. Add a hold/resume scan control, responsive layout and reduced-motion styling. Label this artistic simulation clearly. Inline everything. Description: A quietly mysterious ocean expedition dashboard where a visitor investigates whale calls, volcanic tremors and shoals through a luminous sonar display. Major visual techniques: Technical grid; concentric radar rings; rotating conic gradient; luminous signal dots; monospace telemetry; deep navy/cyan contrast. Intended interaction model: Select any of three sonar contacts to change its analysis and pause or resume the scan.