kungfu.css

:root {
  --toolbar-regular-height: 56px;
}

@media (min-width: 0px) and (orientation: landscape) {
  :root {
    --toolbar-regular-height: 48px;
  }
}

@media (min-width: 600px) {
  :root {
    --toolbar-regular-height: 64px;
  }
}

.h-screen-nav {
  height: calc(100vh - var(--toolbar-regular-height));
}