.card-viewport {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(225px, 1fr));
}
@media (max-width: 52.5em) { /* 735px */
    .card-viewport  {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 30.571em) { /* 428px */
    .card-viewport  {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
    }
    .card-wrapper {
        display: flex;
        margin: 4px;
    }
}
.card-wrapper {
    display: flex;
    position: relative;
    margin: 8px;
}
.card-container {
    display: flex;
    justify-items: center;
    max-width: 1260px;

}
@media (max-width: 90em) { /* 1260px */
    .card-container  {
        width: 100%;
    }
}
@media screen and (max-width: 700px) {
    .card-container {
        grid-template-columns: repeat(2, 1fr);
        grid-row-gap: 20px;
    }
}
.card-box {
    display: flex;
    justify-content: space-between;
    background-color: #fff;
    width: 100%;
    max-width: 300px;
    height: auto;
    outline: 1px solid #e5e5e5;
    outline-offset: -1px;
    text-decoration: none;
    flex: 1;
}
.card-banner {
    display: flex;
    flex-direction: column;
    cursor: pointer;
}

.card-banner__img-container {
    display: grid;
    justify-content: center;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.card-banner img {
    width: 100%;
    max-width: 100%;
    height: auto;
    -webkit-transform: scale3d(1, 1, 1);
    transform: scale3d(1, 1, 1);
    -webkit-transition: 0.35s linear;
    transition: 0.35s linear;
    object-fit: cover;
}
.card-box .card-banner img {
    outline: 1px solid #fff;
    transition: all 0.35s linear;
    cursor: pointer;
}
.card-box .card-banner:hover img {
    outline: 1px solid #777;
    outline-offset: -25px;
    -webkit-transform: scale3d(1.1, 1.1, 1);
    transform: scale3d(1.1, 1.1, 1);
    opacity: 1;
    transition: all 0.35s linear;
}

.card-box__title {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    font-size: 0.8em; 
    font-weight: 600;
    line-height: 1.75;
    color: #464646;
    text-transform: uppercase;
    margin: 0 0 10px;
    padding: 10px 10px 0;
    overflow: hidden;
    flex: 1;
}
.card-box__price-container {
    display: flex;
    flex-direction: row;
    justify-content: space-between;
    flex-wrap: wrap;
    width: 100%;
}
.card-box__price, .card-box__price-old {
    display: flex;
    align-self: center;
    padding: 0 10px 10px;
    font-weight: 500;
    line-height: 1;
    text-transform: uppercase;
}
.card-box__price {
    font-size: 1.3em; /* 18px */
    color: #464646;
}
.card-box__price-old {
    font-size: 1em;
    color: #777777;
    text-decoration: line-through;
}
@media screen and (max-width: 90em) { /* 1260px */
    .card-box__title {font-size: 0.8em;}
    .card-box__price {font-size: 1em;}
    .card-box__price-old {font-size: 0.857em;}
}
@media screen and (max-width: 62.857em) {/* 880px */
    .card-box__price {font-size: 0.893em;}
    .card-box__price-old {font-size: 0.75em;}
}
@media screen and (max-width: 57.143em) {/* 800px */
    .card-box__price {font-size: 0.893em;}
    .card-box__price-old {font-size: 0.75em;}
}
@media screen and (max-width: 28.571em) {/* 400px */
    /* цена и старая цена в 2-е колонки */
    .card-box__price-container {
        display: block;
    }
    .card-box__price {font-size: 0.893em;}
    .card-box__price-old {font-size: 0.75em;}
}