.app-shell {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr) 344px;
  min-height: 100vh;
}

.sidebar,
.right-panel {
  background: rgba(19, 20, 25, 0.96);
  border-right: 1px solid var(--line);
}

.main-content {
  padding: 18px 18px 28px;
}

.premium-section {
  margin-top: 18px;
}