@media (max-width: 768px) {
  .modal.knowledge-base-modal {
    max-width: 100%;
    width: 100%;
    margin: 16px;
    max-height: 85vh;
  }
}

@media (max-width: 1024px) {
  .grid-2 {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .sidebar {
    position: fixed;
    left: -280px;
    z-index: 1000;
    transition: left 0.3s ease;
    width: 260px;
    box-shadow: 2px 0 8px rgba(0,0,0,0.1);
  }

  .sidebar.open {
    left: 0;
  }

  .sidebar-close {
    display: block;
  }

  .sidebar-overlay.open {
    display: block;
  }

  .mobile-menu-btn {
    display: block;
  }

  .main-content {
    margin-left: 0;
    padding: 72px 16px 24px;
  }

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

  .page-title {
    font-size: 24px;
  }

  table {
    display: block;
    overflow-x: auto;
  }

  .quick-actions {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .stats-grid {
    grid-template-columns: 1fr;
  }
}