.app {
  display: flex;
  height: var(--app-height);
  min-height: 0;
}

.main {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 0;
  background: #fff;
}

.overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.3);
  z-index: 99;
}

.overlayOpen {
  display: block;
}

@media (max-width: 768px) {
  .app {
    height: var(--app-height);
  }
}