body { font-family: 'Inter', sans-serif; }
        .hero-glow {
            filter: drop-shadow(0 0 40px rgba(59, 130, 246, 0.25));
            animation: breathe 4s infinite ease-in-out;
        }
        @keyframes breathe {
            0% { filter: drop-shadow(0 0 25px rgba(59, 130, 246, 0.15)); }
            50% { filter: drop-shadow(0 0 45px rgba(59, 130, 246, 0.4)); }
            100% { filter: drop-shadow(0 0 25px rgba(59, 130, 246, 0.15)); }
        }