umami/components/pages/reports/reports.module.css

.container {
  display: grid;
  grid-template-rows: 1fr;
  grid-template-columns: max-content 1fr;
}

.menu {
  width: 300px;
  grid-column: 1 / 2;
}

.content {
  grid-column: 2 / 3;
}