styles.css

@import url('https://fonts.googleapis.com/css?family=Poppins:200,200,300,400,500,600,700,800,900&display=swap');

*{
    font-family: 'Poppins', sans-serif;
    margin: 0;
    padding: 0;
}
body{
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background: #131313;
}
.container{
    position: relative;
}
/* CARD INTEIRO */
.container .card{
    position: relative;
    width: 320px;
    height: 450px;
    background: #232323;
    border-radius: 20px;
    overflow: hidden;
}
.container .card:before{
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: #8f8f8f;
    clip-path: circle(150px at 80% 20%);
    transition: 0.5 ease-in-out;
}
.container .card:hover:before{
    clip-path: circle(300px at 80% -20%);
}
.container .card:after{
    content: 'Rotterman';
    position: absolute;
    top: 65%;
    left: 5%;
    font-size: 3em;
    font-weight: 800;
    font-style: italic;
    color: rgba(255,255,255,0.04);
}

/* IMAGEM DO PRODUTO */

.container .card .imgBx{
    position: absolute;
    top: 50%;
    transform:translateY(-50%);
    z-index: 10000;
    width: 100%;
    height: 220px;
    transition: 0.05s;
}
.container .card.card:hover .imgBx{
    top: 0%;
    transform: translateY(0%);
}
.container .card .imgBx img{
    position: absolute;
    top:50%;
    left: 50%;
    transform: translate(-50%,-50%);
    width: 270px;
}

.imgBx img {
    width: 100%;
    position: absolute;
    left: 0;
    top: 0;
    opacity: 0;
    transition: all 0.3s ease;
}
  
.imgBx img.active {
    opacity: 1;
  }
.container .card .contentBx{
    position: absolute;
    bottom: 0;
    width: 100%;
    height: 100px;
    text-align: center;
    transition: 1s;
    z-index: 10;
}
.container .card:hover .contentBx{
    height: 210px;
}
.container .card .contentBx h2{
    position: relative;
    font-weight: 600;
    letter-spacing: 1px;
    color: #fff;
}

/* BOTÃO COMPRAR */

.container .card .contentBx a{
    display: inline-block;
    padding: 10px 20px;
    background: #fff;
    border-radius: 4px;
    margin-top: 40px;
    border-radius: 4px;
    text-decoration: none;
    font-weight: 600;
    color: #111;
    opacity: 0;
    transform: translateY(50px);
}
.container .card:hover .contentBx a{
    opacity: 1;
    transform: translateY(0px);
    transition-delay: 0.50s;
}


/* SELEÇÃO DAS CORES */
.product-color {
  margin-bottom: 30px;
}

.color-choose div {
  display: inline-block;
}

.color-choose input[type="radio"] {
  display: none;
}

.color-choose input[type="radio"] + label span {
  display: inline-block;
  width: 40px;
  height: 40px;
  margin: -1px 4px 0 0;
  vertical-align: middle;
  cursor: pointer;
  border-radius: 50%;
}

.color-choose input[type="radio"] + label span {
  border: 2px solid #FFFFFF;
  box-shadow: 0 1px 3px 0 rgba(0,0,0,0.33);
}

.color-choose input[type="radio"]#red + label span {
  background-color: rgb(236, 0, 0);
}
.color-choose input[type="radio"]#blue + label span {
  background-color: #0026ce;
}
.color-choose input[type="radio"]#black + label span {
  background-color: #1cf000;
}

.color-choose input[type="radio"]:checked + label span {
  background-image: url(check-icn.svg);
  background-repeat: no-repeat;
  background-position: center;
}
.container .card .contentBx .product-color{
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 8px 20px;
    transition: 0.5s;
    opacity: 0;
    visibility: hidden;
}

.container .card:hover .contentBx .product-color{
    opacity: 1;
    visibility: visible;
    transition-delay: 0.6s;
}
.container .card .contentBx .product-color h3
{
    color: #fff;
    font-weight: 300;
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-right: 10px;
}


.container .card .contentBx .product-color span{
    width: 20px;
    height: 20px;
    background: ff0;
    border-radius: 50%;
    margin: 0 5px;
    cursor: pointer;
}