header{
    background-color: var(--sub) !important;
    padding: 15px 50px;
}

header .links a{
    color: var(--w);
}

.card {
    background-color: #000;
    color: var(--w);   
    position: relative;
    overflow: hidden;
    text-align: center;
}

.card .color{
    position: absolute;
    width: 50px;
    height: 50px;
    background-color: var(--main);
    border-radius: 50%;
    top: -15px;
    right: -15px;
    z-index: 0;
}

.card *{
    position: relative;
    z-index: 1;
}

.card:hover .color{
    top: 0;
    right: 0;
    width: 100%;
    height: 100%;
    border-radius: 0;
}