@keyframes shake {
    0% { transform: translateX(0); }
    25% { transform: translateX(-3px); }
    50% { transform: translateX(3px); }
    75% { transform: translateX(-2px); }
    100% { transform: translateX(0); }
}

@keyframes scaleUp {
    0% {
        transform: translate(-50%, -50%) scale(0);
        opacity: 0;
    }
    100% {
        transform: translate(-50%, -50%) scale(1);
        opacity: 1;
    }
}