.menu {
  background-color: var(--gray-02);
  border-radius: var(--radius);
  position: fixed;
  top: 1em;
  right: 1em;
  width: calc(100vw - 2em);
  max-height: calc(80vh - 2em);
  overflow-y: scroll;
  z-index: 3000;
  transform: translateY(calc(-100% - 2em));
  transition: transform var(--animation-speed-fast) ease-in-out;
}

.is-menu-open .menu {
  transform: translateY(0);
}

.menu-area {
  display: flex;
  flex-direction: column;
}

.menu-nav {
  display: flex;
  flex-direction: column;
}

.menu-nav:not(:last-child) {
  margin: 0;
}

.menu-nav-item:not(:last-child) {
  margin: 0;
}

.menu-content {
  padding: 2em;
}

.menu-content-area {
  display: grid;
  grid-template-columns: repeat(auto-fill, 1fr);
  grid-gap: 2em;
}

.menu-header {
  padding-top: 1em;
  border-top: var(--line-width) solid var(--gray-04);
}

.menu-nav-button {
  margin: 0;
  padding: 1.5em 2em;
  border-radius: 0;
}

.menu-nav-button.active {
  background-color: var(--gray-04);
  color: var(--white);
}

@media (min-width: 550px) {
  .menu {
    max-height: calc(90vh - 2em);
  }

  .menu-header {
    padding-top: 0;
    padding-bottom: 1em;
    border-top: 0;
    border-bottom: var(--line-width) solid var(--gray-04);
  }

  .menu-nav {
    flex-direction: row;
  }

  .menu-content-area {
    grid-template-columns: repeat(auto-fill, minmax(12em, 1fr));
  }
}

@media (min-width: 900px) {
  .menu {
    width: calc(50vw - 2em);
  }

  .menu-content-area {
    grid-template-columns: repeat(auto-fill, minmax(20em, 1fr));
  }
}