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

  .site-nav,
  .button--nav {
    display: none;
  }

  .nav-toggle {
    display: grid;
    width: 2.9rem;
    aspect-ratio: 1;
    place-content: center;
    gap: 0.42rem;
    justify-self: end;
    border: 1px solid currentColor;
    border-radius: 50%;
    color: inherit;
    background: transparent;
    cursor: pointer;
  }

  .nav-toggle span:not(.sr-only) {
    display: block;
    width: 1rem;
    height: 1px;
    background: currentColor;
    transition: transform var(--transition-base);
  }

  .nav-toggle[aria-expanded="true"] span:nth-of-type(2) {
    transform: translateY(0.21rem) rotate(45deg);
  }

  .nav-toggle[aria-expanded="true"] span:nth-of-type(3) {
    transform: translateY(-0.21rem) rotate(-45deg);
  }

  .site-nav.is-open {
    position: fixed;
    inset: 5.4rem 0 0;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding: 2rem var(--gutter);
    color: var(--color-text-on-dark);
    background: var(--color-ink);
  }

  .site-nav.is-open a {
    width: 100%;
    padding-block: 1.1rem;
    border-bottom: 1px solid var(--color-border-dark);
    font-family: var(--font-display);
    font-size: 1.8rem;
    font-weight: 300;
  }

  .hero__title {
    max-width: 13ch;
  }

  .hero-signal {
    right: -14rem;
    opacity: 0.8;
  }

  .section-intro--split {
    grid-template-columns: 0.42fr 1.4fr;
  }

  .section-intro--split > p:last-child {
    grid-column: 2;
  }

  .journey-board {
    grid-template-columns: 0.46fr 1fr;
  }

  .capabilities__layout {
    grid-template-columns: 0.85fr 1.15fr;
    gap: 4rem;
  }

  .technology__grid {
    gap: 4rem;
  }
}

@media (max-width: 820px) {
  :root {
    --space-section: clamp(5rem, 15vw, 7rem);
  }

  .hero {
    min-height: auto;
    padding-top: 9rem;
  }

  .hero__lower {
    width: 100%;
    grid-template-columns: 1fr;
    gap: 1.5rem;
    margin: 0;
  }

  .hero__lede {
    max-width: 35rem;
  }

  .hero-signal {
    position: relative;
    top: auto;
    right: auto;
    width: min(90vw, 34rem);
    margin: 5rem auto 0;
  }

  .hero__metrics {
    margin-top: 3rem;
  }

  .section-intro--split {
    grid-template-columns: 1fr;
    gap: 0.8rem;
  }

  .section-intro--split > p:last-child {
    max-width: 36rem;
    grid-column: auto;
    margin-top: 1rem;
  }

  .journey-board {
    min-height: 39rem;
    grid-template-columns: 1fr;
  }

  .journey-board__rail {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    border-right: 0;
    border-bottom: 1px solid var(--color-border);
  }

  .journey-tab {
    min-width: 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.3rem;
    padding: 1rem 0.7rem;
    border-right: 1px solid var(--color-border);
    border-bottom: 0;
    font-size: 0.8rem;
  }

  .journey-tab:last-child {
    border-right: 0;
  }

  .journey-panel .mono-label {
    margin-bottom: 4rem;
  }

  .capabilities__layout,
  .technology__grid {
    grid-template-columns: 1fr;
  }

  .capabilities__sticky {
    position: static;
  }

  .capability-row {
    min-height: 12rem;
  }

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

  .solution-tile--quote {
    min-height: 19rem;
  }

  .technology__visual {
    max-width: 37rem;
  }

  .research-film {
    min-height: 38rem;
  }

  .cta-band__footer {
    align-items: flex-start;
    flex-direction: column;
  }

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

  .footer__email {
    grid-column: 2;
  }
}

@media (max-width: 560px) {
  :root {
    --gutter: 1.1rem;
    --radius-lg: 1.1rem;
  }

  h2 {
    font-size: clamp(2.35rem, 12vw, 3.5rem);
  }

  .nav-shell {
    min-height: 4.7rem;
  }

  .site-nav.is-open {
    inset-block-start: 4.65rem;
  }

  .hero {
    padding-top: 7.5rem;
  }

  .hero__title {
    font-size: clamp(3.35rem, 16.4vw, 5rem);
  }

  .hero__actions {
    align-items: flex-start;
    flex-direction: column;
    gap: 0.8rem;
  }

  .hero-signal {
    left: 50%;
    width: 31rem;
    margin-left: -15.5rem;
  }

  .hero-signal__note--two {
    right: 5%;
  }

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

  .hero__metrics > div {
    min-height: 5rem;
  }

  .hero__metrics > div + div {
    padding-left: 0;
    border-top: 1px solid var(--color-border-dark);
    border-left: 0;
  }

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

  .journey-tab {
    border-bottom: 1px solid var(--color-border);
  }

  .journey-tab:nth-child(2) {
    border-right: 0;
  }

  .journey-tab:nth-child(3),
  .journey-tab:nth-child(4) {
    border-bottom: 0;
  }

  .journey-panel {
    min-height: 32rem;
    padding: 1.5rem;
  }

  .journey-panel .mono-label {
    margin-bottom: 3rem;
  }

  .panel-visual {
    right: 1.5rem;
    bottom: 1.5rem;
    transform: scale(0.8);
    transform-origin: right bottom;
  }

  .capability-row {
    grid-template-columns: 2rem 1fr;
  }

  .capability-row__glyph {
    grid-column: 2;
    font-size: 2.7rem;
  }

  .solution-tile {
    min-height: 27rem;
  }

  .solution-tile--quote {
    min-height: 20rem;
  }

  .solution-tile__chart {
    right: 1.7rem;
    opacity: 0.55;
  }

  .research-film {
    min-height: 31rem;
  }

  .frame--one {
    top: 4rem;
    right: 2.8rem;
    left: 2.8rem;
    height: 13rem;
  }

  .frame--two {
    right: 2.8rem;
    bottom: 4rem;
    left: 2.8rem;
    height: 10rem;
  }

  .frame--three {
    top: 15rem;
    width: 11rem;
  }

  .cta-band__inner {
    min-height: 35rem;
    padding: 2rem 1.5rem;
  }

  .cta-band h2 {
    margin-top: 4rem;
    margin-bottom: 4rem;
    font-size: clamp(3.1rem, 15vw, 4.7rem);
  }

  .cta-band__footer > div {
    align-items: stretch;
    flex-direction: column;
    width: 100%;
  }

  .footer__top {
    min-height: 24rem;
    grid-template-columns: 1fr;
  }

  .footer__email {
    grid-column: auto;
    justify-self: start;
  }

  .footer__bottom {
    align-items: flex-start;
    flex-direction: column;
    gap: 1rem;
  }

  .footer__bottom nav {
    gap: 0.9rem 1.2rem;
  }

  .modal__panel {
    padding: 3.4rem 1.5rem 2rem;
  }
}