#chat-page-wrapper {
  display: none;
}

#chat-page-wrapper[open] {
  display: flex;

  position: absolute;
  top: 0px;
  left: 0px;
  right: 0px;
  bottom: 0px;

  background-color: var(--background);

  z-index: 2;
}

#chat-page > div {
  padding: 0px;

  overflow: hidden;

  display: grid;
  grid-template-columns: var(--control-height) 1fr;
  grid-template-rows: var(--control-height) 1fr;

  border-top: 1px solid var(--border);
}

#chat-page #ribbon {
  grid-column: 1 / 2;
  grid-row: 1 / 3;

  border-right: 1px solid var(--border);
}

#chat-page #toolbar {
  grid-column: 2 / 3;
  grid-row: 1 / 2;

  border-bottom: 1px solid var(--border);
}

#chat-page #main {
  grid-column: 2 / 3;
  grid-row: 2 / 3;
}