body {
  margin: 0;
  font-family: "Work Sans", sans-serif;
  font-size: 16px;
  line-height: 19px;
  color: #151c22;
  background-color: #FFFFFF;
}

.container {
  width: 900px;
  margin: 0 auto;
  padding-left: 40px;
  padding-right: 40px;
}

.main-header-nav {
  display: flex;
  align-items: center;
  padding-top: 30px;
  padding-bottom: 30px;
}

.site-navigation {
  list-style: none;
  padding: 0;
  margin: 0;
  margin-right: 10px;
  display: flex;
  flex-wrap: wrap;
  font-size: 16px;
  line-height: 19px;
}

.site-navigation-item {

  margin-right: 35px;
}

.link-item {
  color: #151C22;
  font-weight: 500;
  text-decoration: none;
}

.main-header-logo {
  margin: 0;
  margin-right: auto;
}

.user-navigation {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  justify-content: flex-end;
  flex-wrap: wrap;
  width: 20px;
}

.user-navigation-item {

  margin-left: 35px;
}

.card-wrapper {
  display: flex;
  justify-content: space-between;
}

.card-photos-column {
  width: 400px;
}

.main-image {
  display: block;
  margin-bottom: 20px;
}

.slider-preview {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  justify-content: flex-start;
  gap: 20px;
}

.slider-preview-item {
  position: relative;
}

.slider-preview-item img {
  display: block;
}

/* Всем миниатюрам кроме выделенной добавляем оверлей */
.slider-preview-item a:not(.active)::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(255, 255, 255, 0.2);
}

.card-description-column {
  width: 380px;
  padding: 40px;
  padding-top: 80px;
  color: #151c22;
  background-color: #F1F2F4;
}

.card-description-header {
  font-weight: 700;
  font-size: 32px;
  line-height: 38px;
  margin: 0;
  margin-bottom: 35px;
}

.card-description-text {
  margin: 0;
  margin-bottom: 40px;
}

.card-description-category {
  font-weight: 500;
  font-size: 18px;
  line-height: 21px;
  margin: 0;
  margin-bottom: 20px;
}

.card-description-sizes {
  margin: 0;
  margin-bottom: 50px;
  padding: 0;
  list-style: none;

  display: flex;
  flex-wrap: wrap;
  gap: 20px;
}

.unavailable {
  color: #727A82;
}

.card-description-price {
  font-weight: bold;
  font-size: 32px;
  line-height: 41px;

  margin: 0;
  margin-bottom: 100px;
}

.button {
  border: none;
  padding: 27px 56px;
  background-color: #151C22;
  color: #FFFFFF;
  font-weight: 700;
  font-size: 16px;
  line-height: 19px;
}