*
{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
body{
    /* border: 2px solid red; */
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background: #222;
}
.container{
    /* border: 2px solid blue; */
    /* position: relative; */
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 50px;
    flex-wrap: wrap;
}
.container .card
{
    /* border: 2px solid yellow; */
    position: relative;
    width: 350px;
    height: 400px;
    background: rgba(45,45,45,1);
    border-radius: 20px;
    overflow: hidden;
    /* top: 80px; */
}
.container .card::before
{
    /* border: 2px solid magenta; */
    content: '';
    position: absolute;
    top: var(--y);
    left: var(--x);
    transform: translate(-50%,-50%);
    background: radial-gradient(var(--clr), transparent, transparent);
    width: 700px;
    height: 700px;
    opacity: 0;
    transition: 0.5s, top 0s, left 0s;
}
.container .card:hover::before{
    opacity: 1;
}
.container .card::after{
    content: '';
    position: absolute;
    inset: 2px;
    border-radius: 18px;
    background: rgba(45,45,45,0.75);
}