document.addEventListener('DOMContentLoaded', () => {
    document.querySelectorAll('[data-flash]').forEach((item) => {
        setTimeout(() => {
            item.style.opacity = '0';
            item.style.transform = 'translateY(-6px)';
            setTimeout(() => item.remove(), 400);
        }, 4200);
    });

    document.querySelectorAll('[data-confirm]').forEach((form) => {
        form.addEventListener('submit', (event) => {
            if (!confirm(form.dataset.confirm || 'Are you sure?')) {
                event.preventDefault();
            }
        });
    });
});