// js/services/NotificationService.js export class NotificationService { constructor() { this.toastElement = document.getElementById('toast'); } showMessage(message, type = 'info') { this.toastElement.textContent = message; this.toastElement.className = `fixed bottom-4 right-4 px-6 py-3 rounded shadow-lg ${ type === 'error' ? 'bg-red-500' : 'bg-green-500' } text-white`; this.toastElement.classList.remove('hidden'); setTimeout(() => { this.toastElement.classList.add('hidden'); }, 3000); } showError(message) { this.showMessage(message, 'error'); } showSuccess(message) { this.showMessage(message, 'success'); } }