.card::before{
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5); /* Black mask with 50% opacity */
    z-index: 1; /* Place mask above the image */
    transition: background 0.3s ease;
        border-radius: 15px;

}
.card{
    border-radius: 15px;
}
.card img{
    border-radius: 15px;
}