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

body {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background: #050505;
}

.cube {
    position: relative;
    width: 300px;
    height: 300px;
    transform-style: preserve-3d;
    transform: rotateX(-30deg);
    animation: animate 4s linear infinite;
}

@keyframes animate {
    0% 
    {
        transform: rotateX(-30deg) rotateY(0deg);
    }
    100%
    {
        transform: rotateX(-30deg) rotateY(360deg);
    }
}

.cube div {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    transform-style: preserve-3d;
}

.cube div span {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(#1315, #1410e0);
    transform: rotateY(calc(90deg * var(--i))) translateZ(150px);
    display: flex;
    justify-content: center;
    align-items: center;
    transform-style: preserve-3d;
}

.cube div span h2 {
    position: absolute;
    font-size: 3em;
    color: #0480e0;
    transform: translateZ(30px);
}

.cube div span h2:nth-child(1) {
    transform: translateZ(0) translateY(20px);
    color: rgba(0, 0, 0, 0.3);
    filter: blur(2px);
}

.top {
    position: absolute;
    top: 0;
    left: 0;
    width: 300px;
    height: 300px;
    /* background: rgba(9, 22, 250, 0.9); */
    background: rgba(9, 22, 90, 0.9);
    transform: rotateX(90deg) translateZ(150px);
}

.top::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 300px;
    height: 300px;
    background: #0410e0;
    transform: translateZ(-350px);
    filter: blur(20px);
    box-shadow: 0 0 120px rgba(2, 4, 129, 0.2),
    0 0 200px rgba(2, 4, 109, 0.4),
    0 0 300px rgba(9, 22, 209, 0.6),
    0 0 400px rgba(9, 22, 210, 0.8),
    0 0 500px rgba(9, 22, 250, 1);
}