// Mobile nav highlighting
            const mobileNavLinks = document.querySelectorAll('.mobile-nav-link');
            if (mobileNavLinks.length > 0) {
                // Click handler for mobile nav
                mobileNavLinks.forEach(link => {
                    link.addEventListener('click', function(e) {
                        e.preventDefault();
                        const targetId = this.getAttribute('href');
                        const targetEl = document.querySelector(targetId);
                        if (targetEl) {
                            mobileNavLinks.forEach(l => l.classList.remove('active'));
                            this.classList.add('active');
                            const container = this.parentElement;
                            if (container) {
                                const target = this.offsetLeft
                                    - (container.clientWidth - this.offsetWidth) / 2;
                                const max = container.scrollWidth - container.clientWidth;
                                container.scrollTo({
                                    left: Math.max(0, Math.min(max, target)),
                                    behavior: 'smooth'
                                });
                            }
                            scrollPageToNavTarget(targetEl);
                        } else {
                            const dash = document.querySelector('#dashboard');
                            if (dash) scrollPageToNavTarget(dash);
                        }
                    });
                });
    
                // Scroll-based highlighting for mobile nav
                let lastActiveMobileId = null;
                function setActiveMobileNav() {
                    const scrollPosition = window.scrollY;
                    const windowHeight = window.innerHeight;
                    const viewportTrigger = scrollPosition + windowHeight * 0.33;
                    const trackedIds = Array.from(mobileNavLinks)
                        .map(l => l.getAttribute('href').replace('#', ''))
                        .filter(id => document.getElementById(id) !== null);

                    let activeId = trackedIds[0];
                    for (let i = 0; i < trackedIds.length; i++) {
                        const el = document.getElementById(trackedIds[i]);
                        if (el && el.offsetTop <= viewportTrigger) {
                            activeId = trackedIds[i];
                        } else {
                            break;
                        }
                    }

                    const activeChanged = activeId !== lastActiveMobileId;
                    lastActiveMobileId = activeId;

                    let activeLink = null;
                    mobileNavLinks.forEach(l => {
                        l.classList.remove('active');
                        if (l.getAttribute('href') === '#' + activeId) {
                            l.classList.add('active');
                            activeLink = l;
                        }
                    });

                    // Only scroll the nav bar horizontally, and only when the active
                    // pill actually changes — avoids feedback loops with page scroll.
                    if (activeChanged && activeLink) {
                        const container = activeLink.parentElement;
                        if (container) {
                            const target = activeLink.offsetLeft
                                - (container.clientWidth - activeLink.offsetWidth) / 2;
                            const max = container.scrollWidth - container.clientWidth;
                            container.scrollTo({
                                left: Math.max(0, Math.min(max, target)),
                                behavior: 'smooth'
                            });
                        }
                    }
                }
                window.addEventListener('scroll', setActiveMobileNav, { passive: true });
                setActiveMobileNav();
            }