.app-shell {
  --sidebar-width: 280px;
  min-height: 100vh;
  display: grid;
  grid-template-columns: var(--sidebar-width) minmax(0, 1fr);
  gap: var(--space-12);
  padding: var(--space-12);
}

@media (min-width: 1200px) {
  body.is-sidebar-collapsed .app-shell {
    --sidebar-width: 84px;
  }
}

.app-sidebar {
  position: sticky;
  top: var(--space-12);
  max-height: calc(100vh - 2 * var(--space-12));
}

.app-content {
  min-width: 0;
}

.page-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
}

.page-head h1 {
  font-size: var(--text-page-head);
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.page-head p {
  margin-top: 8px;
  color: var(--color-text-muted);
  font-size: var(--text-md);
}