* { margin: 0; padding: 0; box-sizing: border-box; }
        html, body { width: 100%; height: 100%; }
        #root { width: 100%; min-height: 100%; }
        @keyframes bounce { 0%, 100% { opacity: 1; transform: translateY(0); } 50% { opacity: 0.6; transform: translateY(-8px); } }