.page__not_found {
  padding: 3rem 0 2rem;
}

.page__not_found h1{
  font-size: 9rem;
  margin: 1rem 0;
  line-height: 8rem;
  color: var(--gray);
}

.form__search_product {
  position: relative;
  max-width: 400px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.form__search_product input {
  background-color: #fff;
  border: 1px solid var(--gray-200);
  border-radius: 6px;
  padding: 0.75rem 2rem;
  transition: border-color 0.25s;
  font-size: 1rem;
  margin-right: 0.5rem;
  width: 100%;
}

.form__search_product input::placeholder {
  color: var(--gray);
  opacity: 1;
}

.form__search_product input::-ms-input-placeholder {
  color: var(--gray);
}

.form__search_product input:focus {
  border-color: var(--primary);
}

.form__search_product button {
  padding: 10px;
  border-radius: 6px;
  font-size: larger;
  background-color: silver;
  transition: background-color 0.25s;
}

.form__search_product button.on {
  background-color: var(--primary);
}

.form__search_product button.on:hover {
  background-color: var(--primary-200);
}

.page__not_found ol {
  counter-reset: item;
  margin-left: 0;
  padding-left: 0;
}
.page__not_found ol li {
  display: block;
  margin-bottom: 1.75em;
  margin-left: 2.25rem;
}
.page__not_found ol li::before {
  display: inline-block;
  content: counter(item);
  counter-increment: item;
  width: 27px;
  height: 27px;
  margin-left: -2em;
  color: #fff;
  background-color: var(--primary);
  font-weight: 600;
  text-align: center;
  border-radius: 50%;
  margin-right: 1rem;
}

.page__not_found__instruction {
  max-width: 600px;
  margin: 0 auto;
}

.products__last_see .products_title, .products__popular .products_title {
  font-size: 1.5rem;
}

@media screen and (min-width: 768px) {
  .products__last_see .products_title, .products__popular .products_title {
    font-size: 2.25rem;
  }
}