.banner {
    width: 100%;
    height: 100vh;
    text-align: center;
    overflow: hidden;
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.banner .slider {
    position: absolute;
    width: 200px;
    height: 250px;
    top: 25%;
    left: calc(50% - 100px);
    transform-style: preserve-3d;
    transform: perspective(1000px);
    animation: autoRun 30s linear infinite;
    z-index: 2;
}

@keyframes autoRun {
    from {
        transform: perspective(1000px) rotateX(-12deg) rotateY(0deg);
    }
    to {
        transform: perspective(1000px) rotateX(-12deg) rotateY(360deg);
    }
}

.banner .slider .item {
    position: absolute;
    inset: 0 0 0 0;
    transform: 
        rotateY(calc( (var(--position) - 1) * (360 / var(--quantity)) * 1deg))
        translateZ(450px);
}

.banner .slider .item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 8px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.4);
    border: 1px solid rgba(255, 255, 255, 0.15);
}

/* Media Queries for responsiveness */
@media screen and (max-width: 1023px) {
    .banner .slider {
        width: 160px;
        height: 200px;
        left: calc(50% - 80px);
        top: 25%;
    }
    .banner .slider .item {
        transform: 
            rotateY(calc( (var(--position) - 1) * (360 / var(--quantity)) * 1deg))
            translateZ(350px);
    }
}

@media screen and (max-width: 767px) {
    .banner .slider {
        width: 110px;
        height: 140px;
        left: calc(50% - 55px);
        top: 38%;
    }
    .banner .slider .item {
        transform: 
            rotateY(calc( (var(--position) - 1) * (360 / var(--quantity)) * 1deg))
            translateZ(240px);
    }
}