/* Subtle breathing animation for main visual */
        @keyframes subtle-breathe {
            0%, 100% { transform: scale(1); box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1); }
            50% { transform: scale(1.01); box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.15); }
        }
        .breathe-effect {
            animation: subtle-breathe 6s ease-in-out infinite;
        }