.breathing-shadow {
            animation: breathe 3s infinite ease-in-out;
            border-radius: 0.5rem;
        }
        @keyframes breathe {
            0% { box-shadow: 0 0 10px rgba(59, 130, 246, 0.4); }
            50% { box-shadow: 0 0 25px rgba(59, 130, 246, 0.7); }
            100% { box-shadow: 0 0 10px rgba(59, 130, 246, 0.4); }
        }