@media (max-width: 1120px) {
  .app-shell {
    grid-template-columns: 86px minmax(0, 1fr);
  }

  .sidebar {
    padding: 18px 12px;
  }

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

  .brand span:last-child,
  .nav-item {
    font-size: 0;
  }

  .nav-item {
    grid-template-columns: 1fr;
    justify-items: center;
    padding: 0;
  }

  .side-note {
    display: none;
  }

  .metric-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .dashboard-layout,
  .form-grid,
  .report-layout,
  .chat-layout,
  .learning-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 760px) {
  .app-shell {
    display: block;
  }

  .sidebar {
    position: static;
    height: auto;
    display: block;
    padding: 12px;
  }

  .brand {
    grid-template-columns: 44px 1fr;
    margin-bottom: 12px;
  }

  .brand span:last-child {
    font-size: initial;
  }

  .nav-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .nav-item {
    min-height: 48px;
  }

  .main-area {
    padding: 16px;
  }

  .topbar,
  .section-heading,
  .panel-heading,
  .hero-overlay {
    align-items: flex-start;
    flex-direction: column;
  }

  .topbar-actions,
  .hero-overlay {
    width: 100%;
  }

  .hero-band,
  .hero-band img {
    min-height: 360px;
  }

  .metric-grid,
  .option-grid {
    grid-template-columns: 1fr;
  }

  .chat-form,
  .quiz-toolbar {
    grid-template-columns: 1fr;
    display: grid;
  }
}