import { Controller } from "@hotwired/stimulus"; export default class extends Controller { static targets = ["original", "stickyHeader"]; connect() { if (!this.originalTarget || !this.stickyHeaderTarget) return; this.observer = new IntersectionObserver( ([entry]) => { this.stickyHeaderTarget.classList.toggle("is-visible", !entry.isIntersecting); }, { threshold: 0 } ); this.observer.observe(this.originalTarget); } disconnect() { this.observer?.disconnect(); } }