:root {
  --nav-submenu-max-width: var(--container-width);
  --nav-submenu-bg: var(--color-surface);
}

.nav-submenu {
  display: grid;
  list-style: none;
  width: 100%;
  max-height: 0;
  opacity: 1;
  overflow: hidden;
  pointer-events: none;
  transform: translateY(-4px);
  transition:
    max-height 250ms ease,
    opacity 180ms ease,
    transform 180ms ease;
  background-color: var(--nav-bg);
}

.nav-submenu.open {
  max-height: var(--submenu-h);
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.nav-submenu-inner {
  width: 100%;
  height: auto;
}

.nav-submenu-list {
  width: var(--nav-submenu-max-width);
  margin: 0 auto;
}

.nav-sub-toggle {
  display: flex;
  align-items: center;
  height: 100%;
  width: 100%;
  padding: 12px 16px;
  background-color: inherit;
  border: 0;
  text-align: left;
  cursor: pointer;
  font: inherit;
  color: inherit;
  height: var(--nav-h);
}

.nav-item-with-sub {
  display: flex;
  flex-direction: column;
}

.nav-submenu > li {
  padding: 0;
}

.nav-submenu > li a {
  padding: 12px 24px;
}

@media (min-width: 1024px) {
  .nav-submenu {
    position: fixed;
    left: 0;
    right: 0;
    top: var(--nav-h);
    pointer-events: none;
    box-shadow: 0 4px 6px -6px rgb(0 0 0 / 30%);
    opacity: 0;
    transform: translateY(-8px);
    transition:
      max-height 300ms,
      opacity 300ms,
      transform 300ms ease;
  }

  .nav-submenu.open {
    opacity: 1;
  }

  .nav-submenu > li {
    padding: 0;
  }

  .nav-submenu > li a {
    padding: 0;
  }

  .nav-submenu-list {
    width: min(100%, var(--nav-submenu-max-width));
    margin: 0 auto;
    display: grid;
    grid-auto-flow: column;
    grid-template-rows: repeat(3, auto);
    grid-auto-columns: minmax(180px, max-content);
    column-gap: 48px;
    row-gap: 16px;
    justify-content: start;
    align-items: start;
    padding: 24px 24px 48px 24px;
    font-size: 16px;
    font-weight: 500;
  }
  .nav-sub-toggle {
    position: relative;
    padding: 16px 8px;
  }
}