.item-page {
  display: flex;
  height: 100vh;
  &__nav,
  &__content {
    height: 100%;
  }

  &__header {
    min-height: 40px;
    margin: 50px 0 25px;
  }

  &__nav {
    flex: 0 0 30%;
    background: var(--color-gray-dark);
    &__inner {
      float: right;
      width: 375px;
      margin: 60px 40px 0 0;
    }
  }

  &__content {
    flex: 0 0 70%;
    background: var(--color-white);
    &__inner {
      width: 680px;
      margin: 60px 0 0 110px;
    }
  }
}