@media (max-width: 70rem) {
  .desktop-nav {
    gap: 1.15rem;
  }

  .desktop-nav > a:not(.button) {
    font-size: 0.84rem;
  }

  .hero-grid {
    grid-template-columns: minmax(0, 1fr) minmax(23rem, 0.76fr);
    gap: 3.5rem;
  }

  .hero-copy h1 {
    font-size: clamp(3.2rem, 6.3vw, 5.4rem);
  }

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

  .case--primary {
    grid-column: 1 / -1;
    min-height: 27rem;
  }

  .perspective-list article {
    grid-template-columns: 8rem 1.25fr 0.75fr;
  }

  .reading-time {
    display: none;
  }
}

@media (max-width: 58rem) {
  :root {
    --section-space: clamp(4.5rem, 12vw, 7rem);
  }

  .desktop-nav {
    display: none;
  }

  .mobile-menu {
    display: block;
  }

  .mobile-menu summary {
    display: flex;
    width: auto;
    min-width: 4.6rem;
    align-items: center;
    justify-content: space-between;
    gap: 0.55rem;
    padding-inline: 0.7rem;
    color: var(--ink-800);
    font-size: 0.8rem;
    font-weight: 600;
  }

  .mobile-menu summary::before,
  .mobile-menu summary::after {
    display: none;
  }

  .menu-lines {
    display: grid;
    width: 1rem;
    gap: 0.3rem;
  }

  .menu-lines i {
    width: 100%;
    height: 1px;
    background: var(--ink-950);
  }

  .mobile-menu-panel {
    position: fixed;
    top: 5rem;
    right: 0;
    left: 0;
    padding: 1.6rem var(--page-gutter) 2rem;
    border-bottom: 1px solid var(--ink-200);
    background: var(--ink-950);
    box-shadow: 0 20px 55px rgba(7, 19, 33, 0.22);
  }

  .mobile-menu-panel nav {
    display: grid;
    margin-bottom: 1.2rem;
  }

  .mobile-menu-panel nav a {
    padding-block: 0.75rem;
    border-bottom: 1px solid var(--ink-700);
    color: var(--white);
    font-family: var(--font-heading);
    font-size: 1.18rem;
    text-decoration: none;
  }

  .mobile-menu-panel .button {
    width: 100%;
  }

  .mobile-menu-meta {
    margin-top: 1rem;
    color: var(--ink-300);
    font-size: 0.74rem;
  }

  .hero {
    min-height: auto;
    background: var(--white);
  }

  .hero::before {
    display: none;
  }

  .hero-grid,
  .specialization-grid,
  .cfo-grid,
  .founder-grid,
  .final-cta-grid {
    grid-template-columns: 1fr;
  }

  .hero-grid {
    gap: 4rem;
  }

  .evidence-sheet {
    width: 100%;
    max-width: 43rem;
  }

  .section-heading,
  .section-heading--split {
    grid-template-columns: 1fr;
    gap: 1.4rem;
  }

  .section-heading--split > .eyebrow {
    margin: 0;
  }

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

  .tension-grid li {
    min-height: auto;
    padding: 1.8rem 0;
  }

  .tension-grid li + li {
    padding-left: 0;
    border-left: 0;
  }

  .tension-grid span {
    margin-bottom: 1.8rem;
  }

  .specialization-grid {
    gap: 4rem;
  }

  .editorial-photo {
    width: min(100%, 46rem);
  }

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

  .approach-steps li,
  .approach-steps li + li {
    min-height: 18rem;
    padding: 1.8rem;
    border-right: 1px solid var(--ink-200);
    border-left: 0;
  }

  .approach-steps li:nth-child(even) {
    border-right: 0;
  }

  .approach-steps li::after,
  .approach-steps li + li::after {
    left: 0;
  }

  .approach-steps span {
    margin-bottom: 2.6rem;
  }

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

  .service-row {
    grid-template-columns: 3rem 1fr;
  }

  .service-row dl {
    grid-column: 2;
  }

  .founder-mark {
    width: min(100%, 32rem);
    min-height: 24rem;
  }

  .perspective-list article {
    grid-template-columns: 7rem 1fr;
    align-items: start;
  }

  .perspective-list p {
    grid-column: 2;
  }

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

  .footer-grid > div:first-child {
    grid-column: 1 / -1;
  }

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

  .dialog-shell > .dialog-intro {
    padding: 2rem;
  }

  .dialog-facts {
    display: none;
  }

  .dialog-shell > .dialog-intro h2 {
    margin-bottom: 0;
    padding-right: 2rem;
  }

  .dialog-shell > form {
    padding: 2rem;
  }
}

@media (max-width: 40rem) {
  :root {
    --page-gutter: 1.15rem;
  }

  html {
    scroll-padding-top: 4.6rem;
  }

  body {
    font-size: 1rem;
  }

  .header-inner {
    min-height: 4.6rem;
  }

  .mobile-menu-panel {
    top: 4.6rem;
  }

  .hero {
    padding-top: 4.2rem;
  }

  .hero-copy h1 {
    max-width: 10ch;
    font-size: clamp(3rem, 14.5vw, 4.25rem);
  }

  .hero-lead {
    font-size: 1.08rem;
  }

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

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

  .hero-actions .text-link {
    align-self: flex-start;
  }

  .trust-line .trust-separator {
    display: none;
  }

  .trust-line {
    display: grid;
  }

  .evidence-sheet {
    padding: 1rem;
  }

  .evidence-title-row {
    padding-top: 1.2rem;
  }

  .bridge-chart text {
    font-size: 7.5px;
  }

  .section-heading h2,
  .section-heading--split h2 {
    font-size: clamp(2.2rem, 11vw, 3.1rem);
  }

  .impact-row,
  .impact-row--head {
    grid-template-columns: 1fr;
    gap: 0.45rem;
  }

  .impact-row--head span:last-child {
    display: none;
  }

  .specialization h2 {
    font-size: clamp(2.8rem, 14vw, 4.2rem);
  }

  .editorial-photo::before {
    top: -0.65rem;
    right: -0.25rem;
    width: 4rem;
    height: 4rem;
  }

  .approach-steps {
    grid-template-columns: 1fr;
  }

  .approach-steps li,
  .approach-steps li + li {
    min-height: 15.5rem;
    padding: 1.6rem 0;
    border-right: 0;
  }

  .approach-steps li + li::after {
    left: 0;
  }

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

  .case--primary {
    grid-column: auto;
  }

  .case {
    min-height: 28rem;
  }

  .case-metric {
    grid-template-columns: 1fr;
    align-items: start;
  }

  .case-metric i {
    padding-left: 0.35rem;
  }

  .measurement-strip {
    padding: 1.6rem;
  }

  .measurement-strip dl {
    grid-template-columns: 1fr;
  }

  .service-row {
    grid-template-columns: 1fr;
    gap: 0.8rem;
  }

  .service-number {
    margin-bottom: 0.6rem;
  }

  .service-row dl {
    grid-column: auto;
  }

  .service-note {
    text-align: left;
  }

  .cfo-copy > h2 {
    font-size: clamp(2.35rem, 11.5vw, 3.35rem);
  }

  .paper-preview {
    padding: 1.4rem;
  }

  .resource-form {
    padding: 1.25rem;
  }

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

  .form-grid .field--full,
  .form-grid .form-actions,
  .form-grid .form-consents,
  .form-grid .form-message {
    grid-column: auto;
  }

  .founder-mark {
    min-height: 21rem;
  }

  .perspective-list article {
    grid-template-columns: 1fr;
    gap: 0.9rem;
  }

  .perspective-list p {
    grid-column: auto;
  }

  .final-cta h2 {
    font-size: clamp(2.8rem, 14vw, 4.1rem);
  }

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

  .footer-grid > div:first-child {
    grid-column: auto;
  }

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

  .contact-dialog {
    width: 100%;
    max-height: 100dvh;
    margin: auto 0 0;
    border-radius: 0;
  }

  .dialog-shell > .dialog-intro,
  .dialog-shell > form {
    padding: 1.35rem;
  }

  .dialog-close {
    top: 0.75rem;
    right: 0.75rem;
  }
}