.notification-badge {
            animation: pulse 2s infinite;
        }
        @keyframes pulse {
            0% { opacity: 1; }
            50% { opacity: 0.5; }
            100% { opacity: 1; }
        }
        .price-up { color: #ef4444; }
        .price-down { color: #10b981; }
        .notification-toast {
            animation: slideIn 0.3s ease-out;
        }
        @keyframes slideIn {
            from { transform: translateX(100%); opacity: 0; }
            to { transform: translateX(0); opacity: 1; }
        }