@media (max-width: 1180px) {
  .nav-shell {
    gap: 18px;
  }

  .nav-links {
    gap: 16px;
  }

  .hero {
    grid-template-columns: minmax(380px, 0.86fr) minmax(500px, 1.14fr);
    gap: 42px;
  }

  .hero h1 {
    font-size: clamp(48px, 5vw, 62px);
  }

  .content-section,
  .architecture-section {
    padding-right: 52px;
    padding-left: 52px;
  }

  .capability-story {
    width: 100%;
  }

  .deploy-section {
    padding-right: 52px;
    padding-left: 52px;
    grid-template-columns: minmax(330px, 0.78fr) minmax(500px, 1.22fr);
    gap: 42px;
  }
}

@media (max-width: 1020px) {
  .hero {
    min-height: auto;
    padding-top: 76px;
    padding-bottom: 76px;
    grid-template-columns: 1fr;
  }

  .hero-copy {
    max-width: 820px;
  }

  .hero h1 {
    max-width: 760px;
    font-size: clamp(52px, 7vw, 68px);
  }

  .gateway-hero-visual {
    width: min(100%, 900px);
  }

  .assurance-bar {
    grid-template-columns: 1fr;
  }

  .assurance-bar > strong {
    min-height: 64px;
    border-bottom: 1px solid var(--line);
  }

  .assurance-bar ul {
    border-left: 0;
  }

  .capability-story {
    grid-template-columns: minmax(150px, 0.55fr) minmax(280px, 1.2fr) minmax(220px, 1fr);
    gap: 28px;
  }

  .comparison-scope {
    grid-template-columns: 1fr;
  }

  .comparison-scope div {
    text-align: left;
  }

  .capability-panel.is-protocol {
    grid-column: 1 / -1;
  }

  .capability-panel.is-model {
    grid-column: 1 / 7;
  }

  .capability-panel.is-backend {
    grid-column: 7 / -1;
  }

  .capability-panel.is-state {
    grid-column: 1 / 7;
  }

  .capability-panel.is-policy {
    grid-column: 1 / -1;
  }

  .capability-panel.is-operations {
    grid-column: 7 / -1;
    grid-row: 3;
  }

  .performance-intro {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .performance-method {
    padding: 24px 0 0;
    border-top: 1px solid var(--line-strong);
    border-left: 0;
  }

  .performance-ledger > header {
    display: none;
  }

  .performance-ledger > article {
    grid-template-columns: minmax(260px, 0.8fr) minmax(430px, 1.2fr);
  }

  .performance-outcome {
    min-height: 92px;
    padding-top: 22px;
    padding-bottom: 22px;
    border-top: 1px solid var(--line);
    border-left: 0;
    grid-column: 1 / -1;
  }

  .config-demo {
    grid-template-columns: 1fr;
  }

  .config-editor pre {
    height: 560px;
  }

  .deploy-section {
    grid-template-columns: 1fr;
  }

  .deploy-copy {
    max-width: 820px;
  }
}

@media (max-width: 820px) {
  :root {
    --header: 64px;
  }

  .nav-shell {
    width: 100%;
    padding-right: 14px;
    padding-left: 14px;
    grid-template-columns: 1fr auto auto;
    gap: 8px;
  }

  .brand img {
    width: 31px;
    height: 31px;
  }

  .brand span {
    font-size: 16px;
  }

  .js .menu-toggle {
    display: block;
    grid-column: 2;
  }

  .menu-toggle[aria-expanded="true"] span:first-child {
    transform: translateY(5.5px) rotate(45deg);
  }

  .menu-toggle[aria-expanded="true"] span:nth-child(2) {
    opacity: 0;
  }

  .menu-toggle[aria-expanded="true"] span:last-child {
    transform: translateY(-5.5px) rotate(-45deg);
  }

  .nav-links {
    position: absolute;
    top: calc(100% + 1px);
    right: 14px;
    left: 14px;
    display: flex;
    padding: 10px;
    border: 1px solid var(--line-strong);
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.98);
    box-shadow: var(--shadow);
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }

  .js .nav-links {
    display: none;
  }

  .js .nav-links.is-open {
    display: flex;
  }

  .nav-links > a,
  .nav-dropdown > summary {
    min-height: 44px;
    padding: 0 13px;
    border-radius: 8px;
    display: flex;
    align-items: center;
  }

  .nav-dropdown {
    width: 100%;
  }

  .nav-dropdown-panel {
    position: static;
    min-width: 0;
    margin: 0 6px 7px;
    padding: 4px;
    border-color: transparent;
    background: var(--paper);
    box-shadow: none;
    transform: none;
  }

  .nav-dropdown-panel::before {
    display: none;
  }

  .nav-dropdown-panel a,
  .nav-dropdown-panel button {
    min-height: 40px;
    padding-left: 18px;
  }

  .nav-links > a:hover,
  .nav-dropdown > summary:hover {
    color: var(--blue);
    background: var(--paper-blue);
  }

  .nav-actions {
    grid-column: 3;
  }

  .github-link {
    display: none;
  }

  .content-section,
  .architecture-section {
    padding: 84px 28px;
  }

  .section-heading {
    margin-bottom: 44px;
  }

  .section-heading h2 {
    font-size: clamp(38px, 7vw, 52px);
  }

  .capability-story {
    padding: 26px;
    grid-template-columns: 1fr 1.4fr;
  }

  .story-effect {
    padding: 22px 0 0;
    border-top: 1px solid #c9d7e9;
    border-left: 0;
    grid-column: 1 / -1;
  }

  .design-shift {
    grid-template-columns: minmax(120px, 0.48fr) minmax(0, 1fr);
  }

  .design-side-a3s {
    padding: 22px 0 0;
    border-top: 1px solid #b9cff0;
    border-left: 0;
    grid-column: 2;
  }

  .comparison-fit h3 {
    font-size: 24px;
  }

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

  .map-runtime > div + div::before {
    top: -17px;
    left: 50%;
    width: 1px;
    height: 16px;
  }

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

  .site-footer p {
    grid-column: 1 / -1;
    grid-row: 2;
  }

  .site-footer nav {
    grid-column: 1 / -1;
    justify-content: flex-start;
  }
}

@media (max-width: 620px) {
  .page-frame,
  .section-shell {
    width: 100%;
  }

  .hero {
    padding: 52px 20px 60px;
    border-right: 0;
    border-left: 0;
    gap: 46px;
  }

  .hero::before {
    top: -190px;
    right: -350px;
    width: 600px;
    height: 600px;
  }

  .hero-badge {
    min-height: 34px;
    margin-bottom: 28px;
    padding: 0 11px;
    gap: 8px;
    font-size: 8px;
  }

  .hero-badge > span + span {
    padding-left: 8px;
  }

  .hero h1 {
    font-size: clamp(42px, 12vw, 56px);
    line-height: 1.03;
  }

  .hero-lede {
    margin-top: 22px;
    font-size: 15px;
    line-height: 1.68;
  }

  .hero-actions {
    margin-top: 30px;
  }

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

  .gateway-hero-visual {
    padding: 7px;
    border-radius: 15px;
  }

  .gateway-hero-visual picture {
    border-radius: 10px;
  }

  .gateway-hero-visual figcaption {
    min-height: 52px;
    padding-right: 7px;
    padding-left: 7px;
  }

  .gateway-hero-visual figcaption code {
    display: none;
  }

  .assurance-bar {
    border-right: 0;
    border-left: 0;
  }

  .assurance-bar > strong {
    padding: 18px 20px;
  }

  .assurance-bar ul {
    grid-template-columns: 1fr;
  }

  .assurance-bar li {
    min-height: 82px;
    padding: 16px 20px;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .assurance-bar li:last-child {
    border-bottom: 0;
  }

  .content-section,
  .architecture-section {
    padding: 76px 20px;
    border-right: 0;
    border-left: 0;
  }

  .section-heading {
    margin-bottom: 38px;
  }

  .section-heading h2 {
    font-size: clamp(36px, 10vw, 46px);
    line-height: 1.06;
  }

  .section-heading > p {
    margin-top: 18px;
    font-size: 15px;
    line-height: 1.65;
  }

  .capability-story {
    min-height: 0;
    padding: 24px 20px;
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .story-action h4 {
    font-size: 22px;
  }

  .story-effect {
    grid-column: auto;
  }

  .comparison-fit {
    grid-template-columns: 1fr;
  }

  .comparison-fit > div {
    min-height: 0;
    padding: 28px 22px;
  }

  .comparison-fit > div + div {
    border-top: 1px solid #cbd9eb;
    border-left: 0;
  }

  .design-shifts {
    padding: 0 20px;
  }

  .design-shift {
    padding: 24px 0;
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .design-side-a3s {
    padding-top: 20px;
    grid-column: auto;
  }

  .comparison-scope {
    padding: 22px;
  }

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

  .capability-panel,
  .capability-panel.is-protocol,
  .capability-panel.is-model,
  .capability-panel.is-backend,
  .capability-panel.is-state,
  .capability-panel.is-policy,
  .capability-panel.is-operations {
    min-height: 0;
    grid-column: auto;
    grid-row: auto;
  }

  .capability-panel {
    padding: 25px 22px;
  }

  .capability-panel h3 {
    margin-top: 42px;
    font-size: 25px;
  }

  .policy-groups {
    grid-template-columns: 1fr;
  }

  .delivery-link {
    padding: 24px 22px;
    align-items: flex-start;
    flex-direction: column;
  }

  .delivery-link .button {
    width: 100%;
  }

  .performance-method dl {
    gap: 14px;
  }

  .performance-ledger {
    margin-top: 42px;
    border-radius: 14px;
  }

  .performance-ledger > article {
    grid-template-columns: 1fr;
  }

  .performance-context {
    padding: 26px 22px;
  }

  .performance-products {
    border-top: 1px solid var(--line);
    border-left: 0;
  }

  .performance-products > div {
    padding: 24px 20px;
  }

  .performance-products dd {
    font-size: 16px;
  }

  .performance-outcome {
    grid-column: auto;
    padding: 24px 22px;
  }

  .performance-foot {
    padding-top: 20px;
    flex-direction: column;
    gap: 18px;
  }

  .performance-foot nav {
    justify-content: flex-start;
    gap: 14px 20px;
  }

  .config-demo {
    border-radius: 14px;
  }

  .config-editor pre {
    height: 520px;
    padding: 18px 16px;
    font-size: 9px;
  }

  .config-guide {
    padding: 18px;
  }

  .config-steps {
    overflow-x: auto;
    grid-template-columns: repeat(5, 94px);
  }

  .config-notes {
    min-height: 300px;
  }

  .config-notes article {
    padding: 26px 4px;
  }

  .config-notes h3 {
    font-size: 27px;
  }

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

  .map-source > b {
    margin: -4px auto;
  }

  .system-map {
    padding: 14px;
    border-radius: 15px;
  }

  .system-map > footer {
    align-items: flex-start;
    flex-direction: column;
    text-align: left;
  }

  .deploy-section {
    padding: 72px 20px;
    border-right: 0;
    border-left: 0;
  }

  .deploy-copy h2 {
    font-size: clamp(38px, 10vw, 50px);
  }

  .install-console {
    border-radius: 13px;
  }

  .install-tabs button {
    padding: 0 8px;
    font-size: 9px;
  }

  .install-command {
    min-height: 152px;
    padding: 22px 18px;
    align-items: start;
    grid-template-columns: auto minmax(0, 1fr);
  }

  .install-command code {
    white-space: normal;
    word-break: break-all;
  }

  .install-command button {
    width: 100%;
    grid-column: 1 / -1;
  }

  .site-footer {
    padding: 28px 20px;
    border-right: 0;
    border-left: 0;
    grid-template-columns: 1fr;
  }

  .site-footer p,
  .site-footer nav {
    grid-column: auto;
    grid-row: auto;
  }
}