@media (max-width: 900px) {
  .sidebar {
    transform: translateX(-100%);
  }

  .sidebar.open {
    transform: translateX(0);
  }

  .main {
    margin-left: 0;
  }

  .hamburger {
    display: flex;
  }

  .summary-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .charts-row {
    grid-template-columns: 1fr;
  }

  .insights-grid {
    grid-template-columns: 1fr 1fr;
  }

  .monthly-row {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 600px) {
  .summary-grid,
  .insights-grid {
    grid-template-columns: 1fr;
  }

  .content {
    padding: 16px;
  }

  .topbar {
    padding: 0 16px;
  }

  .tx-controls {
    flex-direction: column;
  }

  .search-box input {
    width: 120px;
  }

  .form-row-2 {
    grid-template-columns: 1fr;
  }
}