body {
            font-family: 'Inter', sans-serif;
            background-color: #f8fafc; /* Fondo suave */
            color: #334155; /* Color de texto principal */
        }
        .container {
            max-width: 1200px;
            margin-left: auto;
            margin-right: auto;
        }
        .fade-in {
            opacity: 0;
            transform: translateY(20px);
            animation: fadeInAnimation 0.8s ease-out forwards;
        }
        @keyframes fadeInAnimation {
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        /* Estilos para el botón flotante de WhatsApp y su menú */
        .whatsapp-fab-container {
            position: fixed;
            bottom: 2rem;
            right: 2rem;
            z-index: 1000;
        }
        .whatsapp-fab {
            background-color: #25D366;
            color: white;
            width: 60px;
            height: 60px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
            border: none;
            cursor: pointer;
            transition: transform 0.3s ease;
        }
        .whatsapp-fab:hover {
            transform: scale(1.1);
        }
        .whatsapp-menu {
            position: absolute;
            bottom: 75px; /* Justo encima del botón */
            right: 0;
            background-color: white;
            border-radius: 10px;
            box-shadow: 0 4px 20px rgba(0,0,0,0.15);
            width: 250px;
            padding: 0.5rem;
            opacity: 0;
            visibility: hidden;
            transform: translateY(10px);
            transition: all 0.3s ease;
        }
        .whatsapp-menu.active {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }
        .whatsapp-menu a {
            display: block;
            padding: 0.75rem 1rem;
            color: #334155;
            text-decoration: none;
            border-radius: 6px;
            transition: background-color 0.2s;
        }
        .whatsapp-menu a:hover {
            background-color: #f1f5f9;
        }
        .whatsapp-menu-header {
            padding: 0.75rem 1rem;
            font-weight: 600;
            border-bottom: 1px solid #e2e8f0;
            margin-bottom: 0.25rem;
        }

        /* Estilos para el Modal de Bienvenida */
        .welcome-modal-overlay {
            position: fixed;
            top: 0; left: 0; right: 0; bottom: 0;
            background: rgba(15, 23, 42, 0.8);
            backdrop-filter: blur(4px);
            display: flex;
            align-items: center;
            justify-content: center;
            z-index: 2000;
            opacity: 0;
            visibility: hidden;
            transition: opacity 0.4s ease, visibility 0.4s ease;
        }
        .welcome-modal-overlay.active {
            opacity: 1;
            visibility: visible;
        }
        .welcome-modal-content {
            position: relative;
            background: #fff;
            padding: 2.5rem;
            border-radius: 1rem;
            max-width: 550px;
            width: 90%;
            transform: scale(0.95);
            transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1); /* Bouncy effect */
        }
        .welcome-modal-overlay.active .welcome-modal-content {
            transform: scale(1);
        }
        
        /* Estilos para Notificación Toast */
        .toast-notification {
            position: fixed;
            top: 1.25rem;
            right: 1.25rem;
            z-index: 3000;
            opacity: 0;
            transform: translateY(-20px);
            transition: all 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
        }
        .toast-notification.show {
            opacity: 1;
            transform: translateY(0);
        }