:root {
    --primary: #2175f5;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Poppins', sans-serif;
}

body {
    background-color: #efefef;
}

.container {
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 40px;
    overflow: hidden;
}

.card {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 860px;
}

.shoeBackground {
    position: relative;
    width: 50%;
    height: 475px;
    box-shadow: -15px 0 35px rgba(0, 0, 0, 0.1), 0 -15px 35px rgba(0, 0, 0, 0.1), 0 15px 35px rgba(0, 0, 0, 0.1);
    transition: .5s;
}

.gradients {
    position: absolute;
    width: 100%;
    height: 100%;
    left: 0;
    top: 0;
}

.gradient {
    position: absolute;
    width: 100%;
    height: 100%;
    left: 0;
    top: 0;
    z-index: -2;
}

.first {
    z-index: 0;
    animation: 1s width ease;
}

@keyframes width {
    from {
        width: 0%;
    }
    to {
        width: 100%;
    }
}

.second {
    z-index: -1;
}

.gradient[color="black"] {
    background-image: linear-gradient(45deg, #111, #666);
}

.logo {
    position: absolute;
    width: 100px;
    left: 20px;
    top: 20px;
}

.share {
    position: absolute;
    top: 15px;
    right: 15px;
    background-color: #fff;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    text-align: center;
    font-size: 1.3rem;
    text-decoration: none;
    color: var(--primary);
    transition: .5s;
}

.share:hover {
    transform: scale(1.1);
}

.share i {
    line-height: 50px;
}

.nike {
    position: absolute;
    top: 180px;
    left: 15px;
    font-size: 5rem;
    text-transform: uppercase;
    line-height: .9;
    color: #fff;
    opacity: .1;
}

.shoe {
    position: absolute;
    width: 110%;
    opacity: 0;
    bottom: 0;
    left: 0;
    transition: .5s;
}

.shoe.show {
    opacity: 1;
}

.info {
    width: 50%;
    background-color: #fff;
    z-index: 1;
    padding: 35px 40px;
    box-shadow: 15px 0 35px rgba(0, 0, 0, 0.1), 0 -15px 35px rgba(0, 0, 0, 0.1), 0 15px 35px rgba(0, 0, 0, 0.1);
}

.shoeName {
    padding: 0 0 10px 0;
}

.shoeName div {
    display: flex;
    align-items: center;
}

.shoeName div .big {
    margin-right: 10px;
    font-size: 2rem;
    color: #333;
    line-height: 1;
}

.shoeName div .new {
    background-color: var(--primary);
    text-transform: uppercase;
    color: #fff;
    padding: 3px 10px;
    border-radius: 5px;
    transition: .5s;
}

.shoeName .small {
    font-weight: 500;
    color: #444;
    margin-top: 3px;
    text-transform: capitalize;
}

.shoeName,
.description,
.color-container,
.size-container {
    border-bottom: 1px solid #dadada;
}

.description {
    padding: 10px 0;
}

.title {
    color: #3a3a3a;
    font-weight: 600;
    font-size: 1.2rem;
    text-transform: uppercase;
}

.text {
    color: #555;
    font-size: 17px;
}

.color-container {
    padding: 10px 0;
}

.colors {
    padding: 8px 0;
    display: flex;
    align-items: center;
}

.color {
    width: 25px;
    height: 25px;
    border-radius: 50%;
    margin: 0 10px;
    border: 5px solid;
    cursor: pointer;
    transition: .5s;
}

.color[color="black"] {
    background-color: #444;
    border-color: #444;
}

.color.active {
    border-color: #fff;
    box-shadow: 0 0 10px .5px rgba(0, 0, 0, 0.2);
    transform: scale(1.1);
}

.size-container {
    padding: 10px 0;
    margin-bottom: 10px;
}

.sizes {
    padding: 8px 0;
    display: flex;
    align-items: center;
}

.size {
    width: 40px;
    height: 40px;
    border-radius: 6px;
    background-color: #eee;
    margin: 0 10px;
    text-align: center;
    line-height: 40px;
    font-size: 1.1rem;
    font-weight: 500;
    cursor: pointer;
    transition: .3s;
}

.size.active {
    background-color: var(--primary);
    color: #fff;
    transition: .5s;
}

.buy-price {
    padding-top: 15px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.price {
    color: #333;
    display: flex;
    align-items: flex-start;
}

.price h1 {
    font-size: 2.1rem;
    font-weight: 600;
    line-height: 1;
}

.price i {
    font-size: 1.4rem;
    margin-right: 1px;
}

.buy {
    padding: .7rem 1rem;
    background-color: var(--primary);
    text-decoration: none;
    color: #fff;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 500;
    font-size: 1.1rem;
    transition: .5s;
}

.buy:hover {
    transform: scale(1.1);
}

.buy i {
    margin-right: 2px;
}

@media (max-width: 1070px) {
    .shoe {
        width: 135%;
    }
}

@media (max-width: 1000px) {
    .card {
        flex-direction: column;
        width: 100%;
        box-shadow: 0 0 35px 1px rgba(0, 0, 0, 0.2);
    }
    .card>div {
        width: 100%;
        box-shadow: none;
    }
    .shoe {
        width: 100%;
        transform: rotate(-5deg) translateY(-50%);
        top: 55%;
        right: 2%;
    }
    .nike {
        top: 20%;
        left: 5%;
    }
}

@media (max-width: 600px) {
    .share {
        width: 40px;
        height: 40px;
    }
    .share i {
        font-size: 1rem;
        line-height: 40px;
    }
    .logo {
        width: 70px;
    }
}

@media (max-width: 490px) {
    .nike {
        padding-top: 20%;
        font-size: 3.5rem;
    }
    .shoeName div .big {
        font-size: 1.3rem;
    }
    .small {
        font-size: 1rem;
    }
    .new {
        padding: 2px 6px;
        font-size: .9rem;
    }
    .title {
        font-size: .9rem;
    }
    .text {
        font-size: .8rem;
    }
    .buy {
        padding: .5rem .8rem;
        font-size: .8rem;
    }
    .price h1 {
        font-size: 1.5rem;
    }
    .price i {
        font-size: .9rem;
    }
    .size {
        width: 30px;
        height: 30px;
        margin: 0 8px;
        font-size: .9rem;
        line-height: 30px;
    }
    .color {
        margin: 0 6px;
        width: 0 20px;
        width: 20px;
        height: 20px;
        border-width: 4px;
    }
    .share {
        width: 35px;
        height: 35px;
        top: 10px;
        right: 10px;
    }
    .share i {
        font-size: .8rem;
        line-height: 35px;
    }
    .logo {
        width: 60px;
        top: 10px;
        left: 10px;
    }
    .info {
        padding: 20px;
    }
}

@media (max-width: 400px) {
    .buy i {
        display: none;
    }
    .container {
        padding: 20px;
    }
}