html, body {
  height: 100%;
}

.app-shell {
  display: flex;
  flex-direction: row;
  flex-wrap: nowrap;
  align-items: stretch;
  min-height: 100vh;
}

.app-sidebar {
  flex: 0 0 280px;
  display: flex;
  flex-direction: column;
}

.sidebar-outer {
  flex: 1 1 auto;
  display: flex;
}

.sidebar-menu {
  flex: 1 1 auto;
}

.app-main {
  flex: 1 1 auto;
  min-width: 0;
  display: flex;
  flex-direction: column;
}