header.main {
  grid-column: main;
  grid-row: 1 / 2;
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: relative;
}

header.main:after {
  content: "";
  background: transparent url("../../img/line-top.png") top left repeat;
  height: 31px;
  width: 100%;
  position: absolute;
  bottom: -5px;
  left: 0;
  right: 0;
}

.logo {
  font-size: var(--font-size-23);
}

.mainNavigation {
  font-size: var(--font-size-18);
}

.mainNavigation__list {
  display: flex;
  flex-flow: row wrap;
}

.mainNavigation__item:after {
  content: "-";
  padding-left: 0.5rem;
  padding-right: 0.5rem;
  color: var(--gray40-color);
}

.mainNavigation__item:last-child:after {
  content: none;
}

@media only screen and (max-width: 740px) {
  header.main {
    flex-flow: column;
    justify-content: center;
  }

  header.main:after {
    position: relative;
    bottom: 0;
  }
  .logo {
    margin-bottom: 0.5rem;
  }

  .mainNavigation__list {
    justify-content: center;
  }
}