.main-nav {
  align-items: center;
}

.main-nav > li {
  position: relative;
  list-style: none;
}

.main-nav .sub-menu {
  position: absolute;
  top: 100%;
  left: -18px;
  z-index: 30;
  display: none;
  min-width: 180px;
  margin: 0;
  padding: 10px 0;
  list-style: none;
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: 0 14px 34px rgba(23, 27, 29, .12);
}

.main-nav .sub-menu li {
  list-style: none;
}

.main-nav .sub-menu a {
  display: block;
  padding: 10px 18px;
  white-space: nowrap;
}

.main-nav li:hover > .sub-menu,
.main-nav li:focus-within > .sub-menu {
  display: block;
}

@media (max-width: 820px) {
  .main-nav .sub-menu {
    position: static;
    display: block;
    min-width: 0;
    margin: 0;
    padding: 0 0 0 16px;
    border: 0;
    box-shadow: none;
  }
}