Here is the complete, single-file solution. It includes the HTML structure, Tailwind CSS via CDN for styling, Vanilla JavaScript with LocalStorage persistence, custom SVG icons, and a confetti implementation. ```html Vibrant Kanban Board
K

Product Flow Board

Backlog

Backlog

Fix Navigation Bug

Priority: High • Owner: Dev Team

In Progress

In Progress

Design Mockup

Priority: High • Owner: Designer

Review

Review

Fix Critical Bug

Priority: Critical • Owner: QA Team

Done

Done

Product Launch

Priority: Medium • Owner: Marketing

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