TITLE: Carriage Return — A Typewriter for Letters FILE: 029-typewriter-letters.html === PROMPT (exact prompt used) === Build "Carriage Return — A Typewriter for Letters", an interactive typewriter writing experience featuring a fictional machine, the "Marlowe 44". A three-quarter illustrated typewriter (SVG; mint-green enamel #9fc9b6 with cream keys and chrome details) sits at the bottom, and a sheet of textured paper (#faf6ec) feeds out above it. Typing on the physical keyboard (or tapping on-screen keys) stamps characters onto the paper with realistic imperfections: slight baseline jitter, varied ink density, an occasional faint double strike, ribbon texture. The carriage visibly shifts left as you type, a bell dings near the right margin, and Enter triggers a carriage return with the lever animation and a line feed. Synthesized sounds (Web Audio clicks and bell) after the first gesture, with a mute toggle. Typography: a typewriter monospace stack ("Courier Prime", "American Typewriter", "Courier New", "Nimbus Mono PS", monospace). Extras: a red/black ribbon toggle, "New sheet" pulls the paper out with an animation, and "Save letter" downloads a PNG of the page. A warm desk background with wood-grain gradients and soft lamplight. SHARED REQUIREMENTS (apply to every page in this 100-page collection): 1. One standalone HTML5 file. All CSS inline in