.section.catur.popular {
    position: relative;
    overflow: hidden;
    background-color: hsl(var(--muted));
    border-radius: 0.4rem;
    height: 6rem;
    width: 100%;
}

.section.catur.popular::before {
    content: '';
    position: absolute;
    top: 0; left: -150%;
    height: 100%;
    width: 150%;
    background: linear-gradient(90deg, rgba(255,255,255,0) 0%, rgba(255,255,255,0.1) 50%, rgba(255,255,255,0) 100%);
    animation: shimmer-popular 1.5s infinite;
    border-radius: 0.4rem;
}

@keyframes shimmer-popular {
    0% {
        left: -150%;
    }
    
    100% {
        left: 100%;
    }
}