@keyframes float {
            0% { transform: translateY(0px); }
            50% { transform: translateY(-20px); }
            100% { transform: translateY(0px); }
        }
        .floating {
            animation: float 6s ease-in-out infinite;
        }
        .gradient-bg {
            background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
        }
        .whatsapp-pulse {
            animation: pulse 2s infinite;
        }
        @keyframes pulse {
            0% { box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.7); }
            70% { box-shadow: 0 0 0 15px rgba(37, 211, 102, 0); }
            100% { box-shadow: 0 0 0 0 rgba(37, 211, 102, 0); }
        }