Create an HTML/CSS/JavaScript interaction study with explicit start, active and completed states and a readable prefers-reduced-motion fallback for [PROJECT] and [AUDIENCE]. The task is: Drag-and-Drop Feedback.

## Required content and structure

Show pickup, valid target, invalid target and completed placement states.

Use [APPROVED_CONTENT] as the source of names, dates, figures, claims and destinations. List missing inputs before substituting anything. If a demonstration is needed, label its content as fictional. Do not invent customer quotes, rankings, partner logos or product capabilities.

## Design direction

Use [BRAND_RULES] and the design system already selected in the project. If no system is supplied, start with this direction: white, charcoal and vivid green highlights; clearly labeled start, transition and end states. Keep type, spacing and color roles consistent. Prioritize the task over decorative elements and avoid a generic collection of unrelated cards.

## Content preparation

Define draggable items, valid destinations, invalid moves and the operation performed on drop. Provide a non-drag path for moving the same items.

## Layout and behavior

Differentiate pickup, valid target, invalid target and completed placement. Keep the item's identity visible and communicate its new position in text where appropriate.

## Task-specific acceptance check

- Provide a keyboard move alternative and clear position announcements.
- Move an item by keyboard, cancel a drag and attempt an invalid drop.
- The item should remain recoverable, and feedback must not depend solely on a change of color.

## Implementation and review

Keep text editable. Use semantic structure, descriptive controls, visible keyboard focus and appropriate empty/error states. Check narrow and wide layouts. Respect reduced-motion preferences. Preserve any existing project framework and dependencies; do not silently replace the stack. Return the editable files and explain any incomplete behavior or unsupported inputs. Review this specific task before proposing extra features.

Make the complete information and action available without animation. Provide pause or dismissal where relevant. Document triggers and transitions; do not replace actual progress with a decorative timer.

## Reference attachment and reconstruction goal

Attach reference.webp from this prompt’s download bundle alongside this prompt in OpenDesign. Build an editable result with a similar composition and hierarchy; do not embed the whole reference image as the finished interface. Preserve approved project content and brand rules if they conflict with fictional sample labels. If the image is missing or unreadable, ask for it instead of claiming visual fidelity.

## Reference composition and content

Use the attached reference.webp as the visual reference for Drag-and-Drop Feedback. Before building, identify the major regions from top to bottom, their relative widths and heights, alignment, spacing, typography hierarchy, surface colors, borders, imagery and repeated components. Preserve those relationships rather than substituting a generic template. Required task content: Show pickup, valid target, invalid target and completed placement states. Use the following task-specific layout guidance when translating the image into editable elements: Differentiate pickup, valid target, invalid target and completed placement. Keep the item's identity visible and communicate its new position in text where appropriate.

## Visual direction from the example brief

white, charcoal and vivid green highlights; clearly labeled start, transition and end states.

## Interaction specification

The reference is a static concept: the behavior below is a requirement to implement, not proof that the picture already works. Copy the customized prompt into your working project. Start with the core task: Show pickup, valid target, invalid target and completed placement states. Provide a keyboard move alternative and clear position announcements. For each visible control, specify its trigger, affected state and feedback; implement local changes with consistent state across related views. Give search and filters real results, selection controls an explicit active state, and save actions visible pending/success/failure feedback where relevant. Do not add unrelated workflows. Use proper links for navigation, buttons for actions and accessible names for icon controls. Do not imply a backend operation succeeded when only a local demo changed.

## Visual comparison and delivery

1. Compare the result with the attached image at matching proportions. Review major region placement, relative image sizes, line breaks, spacing, typography hierarchy, contrast, active states and content density before polishing decorative details.
2. Then test the narrow layout without squeezing desktop text into tiny labels.
3. Keep logos, photos and icons as separate assets and all meaningful labels editable. List any unavailable fonts/assets and any intentional departures. Return the working files plus a concise account of implemented behavior and remaining integrations; do not promise a pixel-identical result from the prompt alone.