MiniMax API

A pristine, single-file, self-contained HTML page (inline CSS and JavaScript only — absolutely no external libraries, CDNs, fonts, or image URLs; every texture built purely from CSS gradients, box-shadows, and inset shadows) that renders an interactive, skeuomorphic LETTERPRESS TYPESETTING WORKBENCH: fill the viewport with a warm walnut-wood work surface (layered brown gradients + subtle grain via repeating linear-gradients and noise-like shadow stippling), lit by a single warm tungsten lamp from the upper-left so brushed-metal parts catch a soft specular highlight and every raised object casts a long soft shadow to the lower-right. Left side: a compartmentalized type case (California job case) with grid cells holding tiny embossed lead-type sorts (letters, numbers, punctuation), each sort a beveled metal slug with a raised mirror-reversed glyph on its face. Center: an open composing stick / galley tray where set type accumulates. Provide a full working typesetting flow: (1) the user types on the physical keyboard OR clicks glyphs in the type case, and for each character a lead sort animates flying from its case cell and drops into the composing stick with a crisp "clack" micro-bounce settle animation; (2) draggable thin lead spacer blocks between sorts let the user adjust letter-spacing/kerning by dragging, with live layout reflow; (3) a rotatable ink roller (brayer) the user drags across the locked-up forme, leaving a glossy deep-indigo ink sheen (animated moving specular reflection) on the raised type faces; (4) a pull-down impression lever the user presses (click-and-hold or button) that lowers a sheet of cream laid paper over the inked forme and stamps it — the climactic moment is the lever springing back while the freshly printed line appears on the paper with genuinely debossed letterpress typography: each letter pressed into the paper with an inset shadow giving a physical indentation, ink slightly bleeding/feathering into visible paper-fiber grain, a faint plate impression halo around the block. Palette: burnt umber, brushed brass gold, and warm cream/rice-paper off-white dominate, with deep indigo ink as the ONLY cool accent. Include tactile details: brass thumbscrews, a quoin lock, wood-toned buttons with realistic pressed/active states, and satisfying easing on every transition (spring-like cubic-bezier). Make it responsive (scales gracefully down to tablet width), keep all state in vanilla JS, and let the user compose a full short line of poetry, ink it, and pull a print they can visually admire — everything must feel handcrafted, weighty, and ceremonial, with the physics of the drop, the drag, and the impression conveyed through motion and shadow rather than any external asset.

Create a single, complete, self-contained HTML file that opens directly in any modern browser with zero external dependencies — all CSS and JavaScript must be inlined, and no external libraries, CDNs, fonts, or image URLs are allowed (draw everything with Canvas 2D or SVG generated in code). Build an interactive "Brass Gear Train Workbench": a snap-together mechanical gear simulator rendered on a dusty engineering blueprint tabletop, where the user assembles a working geartrain and watches real physics-accurate rotation ripple through the chain. Core interaction and simulation requirements: - Render the main stage as a blueprint drafting surface: a fine cyan grid on deep engineering-blue paper with a faint film of dust and vignette, plus dimension tick marks and drafting annotations along the edges. - Provide a left-hand parts bin/sidebar holding gears of several distinct sizes (different tooth counts / modules, e.g. 12, 18, 24, 36, 48 teeth). The user drags a gear from the bin onto the stage; it snaps to the grid on release. - Each gear must be drawn as a real involute-style toothed wheel in brass tones — warm gold body, aged copper-patina rim, ivory highlight, visible hub, spokes, and a center bore — with subtle bevel shading so metal reads as metal. - Implement genuine mesh detection: when two placed gears sit at a center distance equal to the sum of their pitch radii (module × teeth / 2) within a tolerance, they automatically engage and lock into a driven chain; draw a meshing indicator where teeth interlock. Chains can branch through multiple gears. - Place a crank handwheel at the lower-left as the visual and mechanical origin. The user turns the crank (drag to rotate it, or hold a button); the entire meshed chain then rotates in sequence. Compute each downstream gear's angular velocity and direction strictly from the gear ratio (ω_out = ω_in × N_in / N_out, direction alternating each mesh), and animate teeth staying perfectly phase-locked at the contact point so no teeth visibly overlap or pass through each other. - The final gear in the chain drives a pointer needle across a numbered dial gauge; the needle must show a real reading derived from the cumulative gear ratio (display the computed output RPM and total ratio as live text). - If the user tries to place gears whose tooth geometry cannot mesh (incompatible spacing/module), that junction must jam: flash it red, halt propagation past the bad joint, and show a small "tooth mismatch" warning. - Add a light beam: a shaft of warm morning sunlight slanting from an upper window across the stage, with drifting dust motes animated in the beam and warm specular glints sliding across the gear teeth as they turn, so the machine looks like it is waking up. Visual and UX polish: - Art direction: retro engineering hand-drawn linework fused with photoreal metal — blueprint fine-grid layered under brass, aged bronze, patina green-blue, and ivory white; warm side-lighting with long soft drop shadows to sculpt volume and depth. - Composition should read the crank as the entry point with the drive chain cutting diagonally across the frame. - Include an uncluttered HUD showing crank speed, total gear ratio, output RPM, and gear count, plus small controls to reverse the crank, clear the stage, and adjust crank speed with a slider. - Everything must be smooth (requestAnimationFrame), responsive to window size, and keep running interactively — dragging, snapping, meshing, and reading updates should all respond in real time. Make it feel tactile, precise, and alive.