@media (max-width: 1100px) {
  .site-header {
    grid-template-columns: 1fr auto;
  }

  .header-actions {
    grid-column: 2;
  }

  .desktop-nav {
    display: none;
  }

  .mobile-only {
    display: grid;
  }

  .hero,
  .internal-hero {
    grid-template-columns: 1fr;
    padding-top: 44px;
  }

  .system-map {
    min-height: 520px;
  }

  .solution-grid {
    grid-template-columns: repeat(3, 1fr);
  }

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

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

  .about-panel,
  .contact-panel,
  .pilot-details {
    grid-template-columns: 1fr;
  }

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

  .learning-features {
    grid-template-columns: repeat(3, 1fr);
  }

  .bi-hero {
    grid-template-columns: 1fr;
    gap: 28px;
    padding-block: 28px;
  }

  .bi-hero-copy {
    max-width: 720px;
    padding-left: 0;
  }

  .bi-dashboard {
    width: 100%;
    margin: 0;
  }

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

  .bi-feature-strip article {
    border-right: 0;
    border-bottom: 1px solid var(--border);
  }

  .bi-feature-strip article:last-child {
    border-bottom: 0;
  }

  .bi-lower-grid {
    grid-template-columns: 1fr;
  }

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

  .footer-map-panel {
    grid-column: 1 / -1;
    grid-row: 1;
  }

  .logical-map {
    min-height: 300px;
  }
}

@media (max-width: 1320px) and (min-width: 1101px) {
  .site-header {
    grid-template-columns: minmax(205px, .9fr) auto minmax(190px, .8fr);
    padding-inline: 28px;
  }

  .brand img {
    width: 225px;
  }

  .desktop-nav {
    gap: 24px;
  }

  .header-cta {
    max-width: 190px;
    padding-inline: 14px;
  }
}

@media (max-width: 680px) {
  .site-header {
    height: 68px;
    padding-inline: 16px;
  }

  .mobile-menu {
    top: 68px;
  }

  .brand img {
    width: 160px;
    height: 36px;
  }

  .header-actions .button {
    display: none;
  }

  .section-shell {
    width: min(100% - 28px, 1560px);
  }

  h1 {
    font-size: 2.45rem;
  }

  .hero {
    min-height: auto;
    gap: 30px;
    padding-block: 42px;
  }

  .internal-hero {
    min-height: auto;
    gap: 34px;
    padding-block: 34px 50px;
  }

  .internal-hero h1 {
    font-size: 2.35rem;
  }

  .hero-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .hero-actions .button {
    width: 100%;
  }

  .system-map {
    min-height: 620px;
  }

  .metric-card {
    width: 42%;
    padding: 13px;
  }

  .metric-card strong {
    font-size: 1.35rem;
  }

  .metric-card small {
    font-size: .72rem;
  }

  .card-erp {
    left: 10px;
  }

  .card-lms {
    right: 10px;
  }

  .card-ivr {
    top: 180px;
    left: 10px;
  }

  .card-api {
    top: 180px;
    right: 10px;
  }

  .dashboard-card {
    right: 10px;
    bottom: 20px;
    left: 10px;
  }

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

  .solution-grid,
  .learning-features,
  .method-grid,
  .phase-list {
    grid-template-columns: 1fr;
  }

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

  .about-panel,
  .contact-panel,
  .content-panel {
    padding: 28px;
  }

  .values-grid,
  .contact-form {
    grid-template-columns: 1fr;
  }

  .full {
    grid-column: auto;
  }

  .learning-dashboard {
    grid-template-columns: 1fr;
  }

  .learning-sidebar {
    display: none;
  }

  .learning-main {
    padding: 20px;
  }

  .learning-summary {
    grid-template-columns: 1fr;
  }

  .progress-score {
    min-height: 140px;
    border-top: 1px solid var(--border);
    border-left: 0;
  }

  .learning-activity {
    grid-template-columns: 1fr;
  }

  .learning-activity div {
    padding: 0 0 12px;
    border-right: 0;
    border-bottom: 1px solid var(--border);
  }

  .cta-band {
    align-items: stretch;
    flex-direction: column;
    padding: 28px;
  }

  .cta-band .button {
    width: 100%;
  }

  .footer-main {
    grid-template-columns: 1fr;
    gap: 28px;
    padding-block: 34px 26px;
  }

  .footer-map-panel {
    grid-column: auto;
    grid-row: auto;
    padding: 13px;
  }

  .footer-panel-heading {
    align-items: stretch;
    flex-direction: column;
    gap: 10px;
  }

  .footer-map-open {
    width: fit-content;
  }

  .logical-map {
    min-height: 260px;
  }

  .footer-explore-grid {
    grid-template-columns: 1fr;
  }

  .footer-brand > img {
    width: 210px;
  }

  .footer-bottom {
    align-items: flex-start;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    padding-block: 14px;
  }

  .bi-hero {
    padding-block: 22px 28px;
  }

  .bi-hero-copy {
    padding-top: 0;
  }

  .bi-hero-copy h1 {
    font-size: 2.5rem;
  }

  .bi-dashboard {
    height: auto;
    padding: 10px;
  }

  .bi-dashboard-head {
    grid-template-columns: 1fr auto;
    min-height: 58px;
  }

  .dashboard-tabs {
    grid-column: 1 / -1;
    grid-row: 2;
    justify-self: stretch;
  }

  .dashboard-tabs button {
    flex: 1;
    padding-inline: 4px;
    font-size: .46rem;
  }

  .dashboard-stage {
    height: auto !important;
    min-height: 0;
    overflow: visible;
  }

  .dashboard-panel {
    position: relative;
    inset: auto;
    display: none;
    visibility: visible;
    opacity: 1;
    transform: none;
    transition: none;
  }

  .dashboard-panel.is-active {
    display: block;
  }

  .dashboard-copy[data-dashboard-copy="learning"] h1,
  .dashboard-copy[data-dashboard-copy="apps"] h1 {
    font-size: 2.2rem;
  }

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

  .bi-dashboard-grid {
    grid-template-columns: 1fr;
    grid-template-rows: repeat(4, auto);
  }

  .solution-dashboard {
    grid-template-columns: 1fr;
    height: auto;
  }

  .solution-sidebar {
    display: none;
  }

  .learning-solution-main,
  .app-solution-main {
    padding: 8px;
  }

  .learning-solution-top,
  .learning-solution-bottom {
    grid-template-columns: 1fr;
    height: auto;
  }

  .learning-solution-top .solution-widget {
    min-height: 172px;
  }

  .learning-solution-bottom .solution-widget {
    min-height: 118px;
  }

  .learning-solution-bottom {
    margin-top: 8px;
  }

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

  .app-solution-lower {
    grid-template-columns: 1fr;
    height: auto;
  }

  .app-activity-widget,
  .distribution-widget {
    min-height: 190px;
  }

  .bi-widget {
    min-height: 120px;
  }

  .region-widget,
  .alerts-widget {
    min-height: 100px;
  }

  .bi-feature-strip {
    grid-template-columns: 1fr;
  }

  .bi-feature-strip article {
    padding-block: 12px;
  }

  .source-badges {
    flex-wrap: wrap;
    gap: 10px 14px;
    white-space: normal;
  }

  .bi-capabilities-panel > div {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .bi-cta > div {
    text-align: left;
  }
}

/* v0.7.0: interactive dashboard menus and capability details. */
@media (max-width: 1100px) {
  .bi-feature-card {
    border-right: 0;
    border-bottom: 1px solid var(--border);
  }

  .bi-feature-card:last-child {
    border-bottom: 0;
  }
}

@media (max-width: 680px) {
  .solution-sidebar {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 4px;
    padding: 7px;
    border-right: 0;
    border-bottom: 1px solid var(--border);
  }

  .solution-sidebar > strong {
    grid-column: 1 / -1;
    min-height: 24px;
  }

  .solution-sidebar > button {
    justify-content: center;
    min-height: 34px;
    padding-inline: 4px;
    font-size: .46rem;
    text-align: center;
  }

  .solution-sidebar > button:hover,
  .solution-sidebar > button:focus-visible {
    transform: none;
  }

  .solution-sidebar > button img {
    width: 12px;
    height: 12px;
    flex-basis: 12px;
  }

  .solution-context-metrics {
    grid-template-columns: 1fr;
  }

  .solution-context-body {
    grid-template-columns: 1fr;
    height: auto;
  }

  .solution-context-body > article {
    min-height: 170px;
  }

  .bi-feature-card {
    min-height: 78px;
    padding: 13px;
  }

  .bi-feature-card:hover,
  .bi-feature-card:focus-visible {
    outline-offset: 2px;
    transform: translateY(-1px);
  }

  .feature-dialog {
    max-height: calc(100dvh - 24px);
    padding: 24px 18px 20px;
    overflow-y: auto;
  }

  .feature-dialog-heading {
    align-items: flex-start;
  }

  .feature-dialog-points {
    grid-template-columns: 1fr;
  }

  .feature-dialog-points article {
    min-height: 0;
  }

  .feature-dialog .button {
    width: 100%;
  }
}

/* v0.9.1 dashboard responsiveness. */
@media (max-width: 680px) {
  .dashboard-tabs {
    overflow-x: auto;
    scrollbar-width: thin;
  }

  .dashboard-tabs button {
    flex: 0 0 auto;
    min-width: 82px;
  }

  .ivr-dashboard {
    grid-template-columns: 1fr;
    height: auto;
  }

  .ivr-sidebar {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 4px;
    padding: 7px;
    border-right: 0;
    border-bottom: 1px solid var(--border);
  }

  .ivr-sidebar strong {
    grid-column: 1 / -1;
  }

  .ivr-sidebar span {
    text-align: center;
  }

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

  .ivr-grid {
    grid-template-columns: 1fr;
    grid-template-rows: auto;
  }

  .ivr-flow {
    grid-row: auto;
    min-height: 230px;
  }

  .ivr-channels,
  .ivr-volume {
    min-height: 130px;
  }
}

@media (max-width: 420px) {
  .ivr-kpis,
  .app-summary-cards,
  .bi-stats {
    grid-template-columns: 1fr;
  }

  .ivr-flow-map {
    grid-template-columns: 1fr;
  }

  .ivr-flow-map > i {
    transform: rotate(90deg);
  }

  .ivr-flow-map > div {
    grid-column: auto;
  }
}

/* Avoid compressing the executive dashboards on common laptop widths. */
@media (max-width: 1350px) and (min-width: 681px) {
  .bi-hero {
    grid-template-columns: 1fr;
    gap: 26px;
    padding-block: 28px 34px;
  }

  .bi-hero-copy {
    max-width: 760px;
    padding-left: 0;
  }

  .bi-dashboard {
    width: 100%;
    margin: 0;
  }
}

/* v0.9.2 responsive controls for IVR and logiData. */
@media (max-width: 680px) {
  .ivr-sidebar button {
    justify-content: center;
    min-height: 34px;
    padding-inline: 4px;
    font-size: .46rem;
    text-align: center;
  }

  .ivr-sidebar button img {
    width: 12px;
    height: 12px;
    flex-basis: 12px;
  }

  .app-activity-widget > div {
    grid-template-columns: 7px minmax(0, 1fr);
  }

  .app-activity-widget > div b {
    grid-column: 2;
    justify-self: start;
    margin-top: 3px;
  }
}


/* v0.9.6 refinements: cleaner mobile layout, fewer crowded columns, better footer flow. */
@media (max-width: 900px) {
  .section-shell {
    padding-inline: 18px;
  }

  .bi-hero {
    gap: 20px;
    padding-block: 22px 28px;
  }

  .bi-dashboard-head {
    gap: 10px;
  }

  .dashboard-tabs {
    gap: 6px;
    padding: 5px;
  }

  .dashboard-tabs button {
    min-height: 38px;
    font-size: .66rem;
  }

  .period-filter,
  .period-filter select {
    width: 100%;
  }

  .solution-sidebar {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
    padding: 10px;
    border-right: 0;
    border-bottom: 1px solid var(--border);
  }

  .solution-sidebar strong {
    grid-column: 1 / -1;
  }

  .solution-sidebar button {
    min-height: 44px;
    justify-content: flex-start;
  }

  .app-summary-cards,
  .bi-stats,
  .ivr-kpis {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .learning-solution-main,
  .app-solution-main,
  .ivr-main {
    padding: 10px;
  }

  .footer-main {
    gap: 24px;
  }
}

@media (max-width: 640px) {
  .section-shell {
    padding-inline: 14px;
  }

  .site-header {
    padding-inline: 14px;
  }

  .brand img,
  .footer-brand > img {
    width: 210px;
  }

  .hero-actions,
  .bi-dashboard-head,
  .footer-bottom,
  .footer-panel-heading {
    gap: 10px;
  }

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

  .hero-actions .button,
  .footer-diagnostic-link,
  .footer-map-open {
    width: 100%;
  }

  .dashboard-tabs {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    overflow: visible;
  }

  .dashboard-tabs button {
    min-width: 0;
    font-size: .65rem;
    padding-inline: 8px;
  }

  .app-summary-cards,
  .bi-stats,
  .ivr-kpis,
  .learning-solution-top,
  .learning-solution-bottom,
  .app-solution-lower,
  .bi-dashboard-grid,
  .bi-lower-grid,
  .footer-main,
  .footer-explore-grid {
    grid-template-columns: 1fr !important;
  }

  .logical-map {
    min-height: 230px;
  }

  .footer-map-panel {
    padding: 12px;
  }

  .footer-socials,
  .footer-social-placeholder {
    gap: 8px;
  }

  .footer-social-link {
    flex: 1 1 calc(50% - 8px);
    justify-content: center;
  }
}

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

  .app-summary-cards,
  .bi-stats,
  .ivr-kpis,
  .source-badges,
  .footer-social-link {
    grid-template-columns: 1fr !important;
  }

  .solution-sidebar {
    grid-template-columns: 1fr;
  }

  .footer-social-link {
    flex-basis: 100%;
  }

  .footer-bottom {
    align-items: flex-start;
  }
}