From idea to done

Create a self-contained SVG motion graphic in a single HTML file.

ART DIRECTION
Draw a three-node horizontal process diagram on soft sage (#eef0e9). Connect the circles with thin green lines. Label the nodes 01 Think, 02 Shape, 03 Share. Make the middle node dark green. Move a small orange signal along the connecting line. Headline: From idea to done. Prioritize clear visual explanation over decoration.

TECHNICAL RULES
- Use a 960 × 600 viewBox (8:5). Scale responsively without cropping.
- The loop lasts exactly 6 seconds. Use deterministic, time-based drawing with requestAnimationFrame; do not accumulate frame deltas.
- Keep all shapes and text inside the safe area. Use system sans-serif fonts and no external assets, libraries, or network requests.
- Use a static representative frame when prefers-reduced-motion is enabled, and include a visible play/pause control.
- Pause when the document is hidden.
- Return the complete HTML, CSS, and JavaScript, with no omitted sections.

DELIVERY
Make the text, colors, and example data easy to edit. Explain which values to change. The supplied reference is an original implementation, not proof that any model reproduces this prompt exactly.