TITLE: Soft Machine FILE: 007-neumorphic-synth.html === PROMPT (exact prompt used) === Create "SOFT MACHINE", a playable neumorphic synthesizer. Everything is sculpted from one soft clay surface (#e4e8ee) with paired light/dark shadows (#ffffff / #b8bec7), raised and pressed states, and a single accent — warm coral #ff6b5a — for active LEDs and the waveform. Layout: a device centred on the page with an OLED-like inset screen showing a live oscilloscope (AnalyserNode drawn on canvas); four rotary knobs (cutoff, resonance, attack, release) dragged vertically; a waveform selector (sine/triangle/saw/square) as neumorphic segmented buttons; a 16-step sequencer row of soft pads; and a two-octave keyboard of soft keys. Typography: a rounded sans stack ("SF Pro Rounded", Nunito, "Varela Round", "Segoe UI", system-ui, sans-serif) with small-caps labels in muted slate. Interaction: click/touch keys or use computer keys A–K to play (Web Audio oscillator → filter → envelope); knobs update the sound in real time with smooth value tooltips; the sequencer plays/stops with adjustable tempo. Audio starts only after the first gesture. Responsive: the device scales down and the keyboard becomes compact on phones without page overflow. SHARED REQUIREMENTS (apply to every page in this 100-page collection): 1. One standalone HTML5 file. All CSS inline in