body { font-family: 'Inter', sans-serif; }
        .breathing-shadow {
            animation: breathe 3s infinite ease-in-out;
        }
        @keyframes breathe {
            0% { box-shadow: 0 10px 15px -3px rgba(59, 130, 246, 0.3); }
            50% { box-shadow: 0 20px 25px -5px rgba(59, 130, 246, 0.6); }
            100% { box-shadow: 0 10px 15px -3px rgba(59, 130, 246, 0.3); }
        }