*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

button {
    cursor: pointer;
}

:root {
    --cb-blue: #0090e3;
    --cb-blue-less: rgba(0, 144, 227, 0.2);
    --cb-dark-blue: #285dab;
    --cb-darker-blue: #036;
    --cb-darkest-blue: #00162c;
    --cb-orange: #f60;
    --cb-dark-orange: #ec4040;
    --cb-darker-orange: #be0000;
    --cb-green: #00b900;
    --cb-dark-green: #090;
    --cb-darker-green: #016701;
    --cb-gray: #ddd;
    --cb-gray-less: rgba(221, 221, 221, 0.8);
    --cb-white: #fff;
}

html {
    font-size: 62.5%;
}

body {
    font-family: 'Open Sans', sans-serif;
    width: 100vw;
}

main {
    width: 100%;
    height: 100%;
    padding: 11% 11% 0 11%;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
}

.sale__section {
    width: 100%;
    height: 100%;
    display: grid;
    grid-template-columns: repeat(2, 49%);
    gap: 2%;
    align-items: center;
}

.sale__image {
    grid-column: 1 / 2;
    width: 100%;
    transform: scaleX(-1);
    height: 30rem;
    object-fit: contain;
}

.sale__div {
    grid-column: 2 / 3;
}

.sale__title {
    color: var(--cb-darker-blue);
    font-size: 3rem;
}

.sale__size__title {
    font-size: 2rem;
    margin-left: 0.2rem;
}

.sale__size__button {
    width: 6rem;
    height: 4rem;
    border: 2px solid var(--cb-gray);
    background: white;
    font-size: 2rem;
    margin: 0.2rem;
    border-radius: 0.3rem;
}

.sale__size__button.active__maat {
    background: var(--cb-blue-less);
    border: 2px solid var(--cb-blue);
}

.sale__button__div{
    align-items: center;
    display: flex;
    gap: 0.25rem;
    flex-wrap: wrap;
}

.sale__button {
    margin: 0.2rem;
    width: 6rem;
    height: 6rem;
    background: white;
    border: 2px solid var(--cb-gray);
    border-radius: 0.3rem;
    padding: 0.2rem;
}

.sale__button.active__choice {
    background: var(--cb-blue-less);
    border: 2px solid var(--cb-blue);
}

.sale__button>img {
    width: 100%;
    transform: scaleX(-1);
}

.sale__button>span {
    display: none;
}

.sale__price__div {
    display: flex;
    margin-left: 0.2rem;
    gap: 1rem;
    align-items: flex-end;
    flex-wrap: wrap;
}

.sale__price__text {
    color: var(--cb-gray);
    font-size: 1.5rem;
}

.sale__price__old {
    color: var(--cb-gray);
    font-size: 2rem;
}

.sale__price {
    font-size: 2rem;
    font-weight: 600;
}

.sale__shopping__button {
    width: 70%;
    height: 5rem;
    background: var(--cb-green);
    border: none;
    border-radius: 0.4rem;
    font-size: 2rem;
    box-shadow: inset 0 -2px 0 0 var(--cb-dark-green);
    transition: 0.1s all;
    color: white;
    margin-top: 1rem;
    margin-left: 0.2rem;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1rem;
}

.sale__shopping__button:hover {
    background: var(--cb-dark-green);
    box-shadow: inset 0 -2px 0 0 var(--cb-darker-green);
}

.sale__shopping__button>.shopping__button__check{
    display: none;
}

.description__section {
    margin-top: 5rem;
    display: flex;
    flex-direction: column;
    gap: 2rem;
    padding-right: 30%;
}

.description__text {
    font-size: 1.5rem;
}

@media screen and (max-width: 57rem){
    .header__section{
        gap: 2rem;
    }
}

@media screen and (max-width: 50rem) {
    main{
        padding: 21% 11% 0 11%;
    }
    .sale__shopping__button{
        width: 100%;
    }
}