nightTab/css/menu.css

.menu {
  padding: 1em;
  position: fixed;
  top: 0;
  right: 0;
  width: 100%;
  height: 80vh;
  transform: translateY(calc(-100% - 2em));
  transition: transform var(--animation-speed-fast) ease-in-out;
  z-index: var(--z-index-menu);
  pointer-events: none;
}

.menu:focus {
  outline: none;
}

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

.menu-area {
  background-color: rgb(var(--gray-01));
  border-radius: var(--radius);
  width: 100%;
  max-height: 100%;
  overflow-y: auto;
  pointer-events: all;
  opacity: 1;
  transition: background-color var(--animation-speed-fast) ease-in-out, opacity var(--animation-speed-fast) ease-in-out;
}

.is-edge .menu-area {
  opacity: 0.2;
}

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

.menu-nav-area {
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  align-items: flex-start;
}

.menu-nav-area-grow {
  flex-grow: 1;
}

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

.menu-content-area {
  display: grid;
  grid-template-columns: 1fr;
}

.menu-item {
  position: relative;
  z-index: 1;
}

.menu-item:not(:last-child) {
  border-bottom: var(--menu-border);
}

.menu-item-header {
  padding: 2em;
}

.menu-item-header-text {
  margin-bottom: 0;
}

.menu-item-form {
  padding: 0 2em 2em 4em;
}

.menu-close {
  background-color: transparent;
  margin: 0;
  padding-top: 0.75em;
  padding-bottom: 0.75em;
  border-radius: 0 var(--radius) 0 0;
}

.menu-nav-button {
  background-color: transparent;
  margin: 0;
  padding-top: 1em;
  padding-bottom: 1em;
  border-radius: 0;
  flex-grow: 1;
  flex-basis: 33%;
}

.menu-nav-button:first-child {
  border-radius: var(--radius) 0 0 0;
}

.menu-nav-button [class^="icon-"],
.menu-nav-button [class*=" icon-"] {
  line-height: 1;
  padding-top: 1.5em;
  padding-bottom: 1.5em;
}

@media (min-width: 550px) {
  .menu {
    width: 80vw;
  }

  .menu-nav-button {
    flex-basis: 0;
  }
}

@media (min-width: 700px) {
  .menu {
    width: 60vw;
    height: 100%;
    overflow-y: inherit;
    max-height: inherit;
  }

  .menu-area {
    overflow-y: inherit;
    display: grid;
    grid-template-columns: 1fr;
    grid-template-rows: auto 1fr;
    justify-items: stretch;
    align-items: stretch;
  }

  .menu-content {
    overflow-y: auto;
  }

  .menu-item {
    display: grid;
    grid-template-columns: 2fr 3fr;
    grid-template-rows: 1fr;
    align-items: flex-start;
    grid-gap: 2em;
  }

  .menu-item-header {
    padding: 2em 0 2em 2em;
    position: sticky;
    top: 0;
    z-index: 3;
  }

  .menu-item-form {
    padding: 2em 2em 2em 0;
    z-index: 2;
  }
}

@media (min-width: 900px) {
  .menu {
    width: 60vw;
  }

  .menu-item {
    grid-template-columns: 1fr 2fr;
  }
}

@media (min-width: 1600px) {
  .menu {
    width: 40vw;
  }
}