:root {
  --sidebar-width: 200px;
  --sidebar-expanded-width: 200px;
  --transition-duration-primary: 200ms;
  --transition-timing-function-primary: ease-in;
  --button-shadow: rgba(0, 0, 0, 0.12) 0px 1px 3px,
    rgba(0, 0, 0, 0.24) 0px 1px 2px;
}