* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background-color: #000;
    overflow: hidden;
    font-family: 'Arial', sans-serif;
}

.container {
    position: relative;
    width: 100vw;
    height: 100vh;
}

.spinner-box {
    position: absolute;
    width: 150px;
    height: 150px;
    transform-style: preserve-3d;
    animation: spin 4s infinite linear;
}

@keyframes spin {
    from {
        transform: rotateX(0deg) rotateY(0deg);
    }
    to {
        transform: rotateX(360deg) rotateY(360deg);
    }
}

.face {
    position: absolute;
    width: 150px;
    height: 150px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    font-weight: bold;
    color: #fff;
    border: 3px solid #fff;
    background: linear-gradient(45deg, #ff006e, #8338ec, #3a86ff);
    opacity: 0.9;
}

.front {
    transform: translateZ(75px);
}

.back {
    transform: rotateY(180deg) translateZ(75px);
}

.left {
    transform: rotateY(-90deg) translateZ(75px);
}

.right {
    transform: rotateY(90deg) translateZ(75px);
}

.top {
    transform: rotateX(90deg) translateZ(75px);
}

.bottom {
    transform: rotateX(-90deg) translateZ(75px);
}