TITLE: MANDALA — radial symmetry studio
PROMPT: Create 'MANDALA', a luminous radial-symmetry drawing studio. Full-screen deep charcoal-indigo canvas; each stroke mirrors across N axes (2 to 32, slider) with hue cycling along the stroke and a soft glow; faint axis guides fade while you draw; a minimal mono side rail holds symmetry count, brush weight, glow amount, hue speed, undo, clear, save-PNG. Interactions: draw with pointer (stroke width varies with speed); completing a stroke triggers a gentle bloom pulse along every axis; an inspire button paints three automatic strokes to seed the composition. Meditative, jewel-like results every time.
DESCRIPTION: A full-viewport drawing canvas on a charcoal-indigo radial wash with a floating glass side rail. Every stroke is mirrored across 2–32 axes (plus mirrored reflection for richness) with continuous hue drift along its length and an adjustable glow bloom; stroke width narrows with speed for calligraphic variety. Finishing a stroke fires a bloom pulse along every axis; an "inspire me" button paints three choreographed automatic strokes with per-stroke symmetry changes (also runs once on load as a welcome flourish). Undo keeps a 14-deep canvas snapshot history; save exports a PNG; resize preserves your artwork. Keyboard: Z undo, C clear, I inspire, S save.
TECHNIQUES: polar-coordinate rotational mirroring, HSL hue cycling per segment, canvas shadowBlur glow, speed-sensitive line width, snapshot-based undo history, DPR-aware canvas with resize preservation, pointer capture drawing, requestAnimationFrame radial bloom pulses, generative "inspire" choreography with async/await pacing, glassmorphic control rail, reduced-motion-aware.
INTERACTION: Draw anywhere on the canvas (pointer or touch); sliders tune symmetry, weight, glow, hue drift live; undo/clear/save/inspire buttons plus Z/C/I/S keyboard shortcuts; status line reports stroke and axis counts; on mobile the rail becomes a bottom panel.