* {
    margin: 0;
    padding: 0;
}

body {
    background-color: #0d0d0d;
    font-family: 'Noto Sans JP', sans-serif;   
}

.bg-vid{
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: -1;
}

h1 {
    word-spacing: 5px;
    letter-spacing: 5px;
    margin: 50px;
    text-align: center;
    color: #4fc3f7;
    font-size: 3rem;
    text-shadow: 0 0 5px #8a2be2,
                 0 0 10px #8a2be2,
                 0 0 15px #4b0082,
                 0 0 20px #4b0082,
                 0 0 30px #0000ff;
}

.list {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: 100px;
    transform-style: preserve-3d;
    perspective: 1000px;
}
.item {
    height: 200px ;
    width: 120px;
    overflow: hidden;
    margin-left: 10px;
    margin-right: 10px;
    filter: brightness(0);
    transition: 0.5s;
}

.list .item img {
    height: 100%;
    width: 100%;
    object-fit: cover;
}
.list .item:hover {
    filter: brightness(1);
    transform: translateZ(100px) ;
}

.list .item:hover + * {
    filter: brightness(0.5);
    transform: translateZ(50px) rotateY(20deg) ;

}
.list .item:hover + * + * {
    filter: brightness(0.3);
    transform: translateZ(25px) rotateY(10deg) ;
}

.list .item:has(+ * :hover )   {
    filter: brightness(0.5);
    transform: translateZ(50px) rotateY(-20deg) ;
}
.list .item:has(+ * + * :hover )   {
    filter: brightness(0.3);
    transform: translateZ(25px) rotateY(-10deg) ;
}

@media  (max-width: 768px) {

    main{
         display: flex;
         justify-content: center;
    }
    .list {
        display: grid;
        grid-template-rows: 1fr ;
        grid-template-columns: 1fr 1fr ;
        gap: 25px;

    }
}