@media (max-width: 1180px) {
  :root {
    --sidebar-width: 270px;
  }

  #main-content {
    padding: var(--space-6);
  }

  .hero-title {
    font-size: 4rem;
  }

  #hero {
    grid-template-columns: 1fr;
  }

  .hero-right {
    min-height: auto;
  }
}

@media (max-width: 980px) {
  .app-shell {
    grid-template-columns: 1fr;
  }

  #sidebar {
    position: relative;
    z-index: 4;
    height: auto;
    border-right: 0;
    border-bottom: 1px solid var(--color-border);
  }

  #sidebar-nav {
    overflow: visible;
    padding-right: 0;
  }

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

  .sidebar-footer {
    margin-top: var(--space-6);
  }

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

@media (max-width: 720px) {
  #main-content,
  #sidebar {
    padding: var(--space-4);
  }

  .command-bar,
  .grid-header,
  #footer {
    align-items: stretch;
    flex-direction: column;
  }

  .hero-left {
    min-height: auto;
    padding: var(--space-6);
  }

  .hero-title {
    font-size: 3rem;
  }

  .hero-stats-grid,
  #performance-overlay,
  .module-summary {
    grid-template-columns: 1fr;
  }

  #sidebar {
    position: relative;
    overflow: hidden;
  }

  #sidebar-nav {
    margin-top: var(--space-4);
    max-width: 100%;
    min-width: 0;
    overflow-x: auto;
    padding-bottom: var(--space-2);
  }

  .nav-list {
    display: flex;
    gap: var(--space-2);
    width: max-content;
    max-width: none;
  }

  .nav-list li {
    flex: 0 0 auto;
  }

  .nav-button {
    width: auto;
    min-width: 154px;
  }

  .sidebar-footer {
    display: none;
  }

  .scanner-visual {
    min-height: 220px;
  }

  #telemetry-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 2.45rem;
  }

  .hero-description {
    font-size: 0.95rem;
  }

  .hero-actions,
  .command-pills,
  .hero-meta-grid,
  .grid-meta {
    flex-direction: column;
  }

  .primary-button,
  .secondary-button {
    width: 100%;
  }

  .card-row {
    grid-template-columns: 1fr;
    gap: var(--space-1);
  }
}