@media (max-width: 64rem) {
  .site-nav {
    position: fixed;
    top: 0;
    right: 0;
    width: min(100%, 28rem);
    height: 100dvh;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    justify-content: center;
    gap: 0.35rem;
    padding: calc(6rem + env(safe-area-inset-top)) 2rem calc(2rem + env(safe-area-inset-bottom));
    background: rgba(2, 11, 24, 0.94);
    box-shadow: -1.5rem 0 4rem rgba(0, 0, 0, 0.28);
    backdrop-filter: blur(18px);
    transform: translateX(110%);
    visibility: hidden;
    transition: transform 320ms cubic-bezier(0.2, 0.7, 0.2, 1), visibility 320ms;
  }

  .site-nav.is-open {
    transform: translateX(0);
    visibility: visible;
  }

  .site-nav a {
    align-self: flex-start;
    padding: 0.72rem 0.95rem;
    border: 1px solid transparent;
    border-radius: var(--radius-sm);
    font-size: clamp(1.5rem, 7vw, 2.4rem);
    font-weight: 520;
    letter-spacing: -0.04em;
    transition: color var(--transition), background var(--transition), border-color var(--transition), box-shadow var(--transition);
  }

  .site-nav a:hover,
  .site-nav a[aria-current="page"] {
    border-color: rgba(85, 197, 255, 0.2);
    background: rgba(18, 168, 255, 0.07);
    box-shadow: inset 2px 0 0 rgba(85, 197, 255, 0.88);
    color: var(--blue-bright);
  }

  .site-nav .nav-contact {
    margin: 0.4rem 0 0;
    padding: 0.72rem 0.95rem;
    border: 1px solid transparent;
    border-radius: var(--radius-sm);
    background: transparent;
    color: var(--ink-soft);
    font-size: clamp(1.5rem, 7vw, 2.4rem);
    text-align: left;
  }

  .site-nav .nav-contact:hover,
  .site-nav .nav-contact[aria-current="page"] {
    border-color: rgba(85, 197, 255, 0.2);
    background: rgba(18, 168, 255, 0.07);
    box-shadow: inset 2px 0 0 rgba(85, 197, 255, 0.88);
    color: var(--blue-bright);
  }

  .menu-toggle {
    position: relative;
    z-index: 2;
    display: block;
  }

  .menu-backdrop {
    position: fixed;
    z-index: 90;
    inset: 0;
    display: none;
    border: 0;
    background: rgba(0, 5, 14, 0.66);
    backdrop-filter: blur(4px);
  }

  .menu-backdrop.is-open {
    display: block;
  }

  .hero-layout {
    grid-template-columns: minmax(0, 1fr);
  }

  .service-row {
    grid-template-columns: minmax(12rem, 0.6fr) minmax(16rem, 1fr);
  }

  .project-feature,
  .portfolio-item,
  .project-folder {
    grid-template-columns: minmax(15rem, 0.65fr) minmax(22rem, 1fr);
  }

  .offer-glance {
    grid-template-columns: minmax(13rem, 0.9fr) repeat(3, minmax(8rem, 0.5fr));
  }
}

@media (max-width: 50rem) {
  .section-heading,
  .hero-layout,
  .project-feature,
  .portfolio-item,
  .project-folder,
  .portfolio-preview,
  .case-intro,
  .managed-layout,
  .contact-layout,
  .legal-layout,
  .cta-panel {
    grid-template-columns: minmax(0, 1fr);
  }

  .section-heading {
    align-items: start;
  }

  .hero {
    min-height: auto;
  }

  .hero-layout {
    gap: 0;
  }

  .dual-worlds,
  .case-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .world {
    min-height: 19rem;
  }

  .service-row {
    grid-template-columns: minmax(0, 1fr);
    gap: 1rem;
    padding-block: 2rem;
  }

  .service-row p {
    grid-column: 1;
    grid-row: 2;
  }

  .project-stage {
    min-height: 28rem;
  }

  .process-line,
  .care-list,
  .offer-grid,
  .managed-blocks {
    grid-template-columns: minmax(0, 1fr);
  }

  .process-item + .process-item {
    border-top: 1px solid var(--line);
    border-left: 0;
  }

  .care-list,
  .offer-grid {
    gap: 1.15rem;
  }

  .cta-panel {
    align-items: start;
  }

  .editorial-item:not(.offer-card) {
    grid-template-columns: minmax(0, 1fr) minmax(12rem, 0.8fr);
  }

  .editorial-item:not(.offer-card) > :last-child {
    grid-column: 1 / -1;
  }

  .offer-card p {
    min-height: 0;
  }

  .offer-glance {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0.75rem;
    align-items: stretch;
  }

  .offer-glance > div {
    grid-column: 1 / -1;
    min-height: auto;
  }

  .offer-glance > a:nth-of-type(1),
  .offer-glance > a:nth-of-type(2),
  .offer-glance > a:nth-of-type(3) {
    min-height: 10rem;
    margin-top: 0;
  }

  .portfolio-collage {
    grid-template-columns: repeat(10, minmax(0, 1fr));
    grid-template-rows: repeat(12, minmax(0, 1fr));
    height: min(30rem, 76vw);
    min-height: 20rem;
  }

  .portfolio-collage img:first-child {
    grid-column: 1 / 7;
    grid-row: 1 / 13;
  }

  .portfolio-collage img:nth-child(2) {
    grid-column: 7 / 11;
    grid-row: 1 / 7;
  }

  .portfolio-collage img:nth-child(3) {
    grid-column: 7 / 11;
    grid-row: 7 / 13;
  }

  .portfolio-preview-rotator[data-preview-count="2"] .portfolio-collage img:first-child {
    grid-column: 1 / 7;
    grid-row: 1 / 13;
  }

  .portfolio-preview-rotator[data-preview-count="2"] .portfolio-collage img:nth-child(2) {
    grid-column: 7 / 11;
    grid-row: 2 / 12;
  }

  .portfolio-item:nth-child(even) .portfolio-copy {
    order: initial;
  }

  .contact-aside {
    position: static;
  }

  .footer-top {
    grid-template-columns: repeat(2, minmax(8rem, 1fr));
  }
}

@media (max-width: 36rem) {
  :root {
    --gutter: 1.15rem;
    --section: 3.65rem;
  }

  .header-inner {
    width: calc(100% - 1rem);
    min-height: 3.4rem;
    padding-block: 0.35rem;
  }

  .menu-toggle {
    width: 2.65rem;
    height: 2.65rem;
  }

  .menu-toggle span:first-child {
    top: 1.1rem;
  }

  .menu-toggle span:last-child {
    top: 1.46rem;
  }

  .menu-toggle[aria-expanded="true"] span:first-child,
  .menu-toggle[aria-expanded="true"] span:last-child {
    top: 1.3rem;
  }

  .brand span {
    max-width: 7rem;
    line-height: 1.05;
  }

  .brand img {
    width: 2.35rem;
    height: 2.35rem;
  }

  .display,
  .page-title {
    font-size: clamp(2.45rem, 11.5vw, 3.7rem);
  }

  .hero {
    padding-top: 6.65rem;
  }

  .hero-copy .lead {
    margin-top: 1.5rem;
  }

  .button-row {
    align-items: stretch;
    flex-direction: column;
  }

  .button {
    width: 100%;
  }

  .world {
    min-height: 18.5rem;
    padding: 1.75rem 1.4rem;
  }

  .world-graphic {
    width: 11rem;
  }

  .project-stage {
    min-height: 23rem;
    padding: 1.25rem;
  }

  .browser-frame {
    min-height: 19rem;
    transform: rotate(1deg) translate(1%, 2%);
  }

  .lunea-screen {
    min-height: 16.75rem;
    padding: 1.25rem;
  }

  .editorial-item:not(.offer-card) {
    grid-template-columns: minmax(0, 1fr);
  }

  .editorial-item:not(.offer-card) > :last-child {
    grid-column: auto;
  }

  .offer-glance {
    grid-template-columns: minmax(0, 1fr);
  }

  .offer-glance > div,
  .offer-glance > a {
    grid-column: auto;
    min-height: auto;
    margin-top: 0;
    border: 1px solid rgba(7, 20, 38, 0.16);
  }

  .offer-glance > a:nth-of-type(1),
  .offer-glance > a:nth-of-type(2),
  .offer-glance > a:nth-of-type(3) {
    min-height: auto;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }

  .offer-glance > a .offer-glance-price {
    margin-top: 0.7rem;
    margin-left: 0;
    text-align: left;
  }

  .offer-glance-description {
    margin-top: 0.75rem;
  }

  .offer-glance-list {
    margin-top: 0.85rem;
  }

  .portfolio-collage {
    grid-template-columns: repeat(8, minmax(0, 1fr));
    grid-template-rows: repeat(12, minmax(0, 1fr));
    height: clamp(27rem, 135vw, 32rem);
    padding: 0.7rem;
  }

  .portfolio-collage img:first-child {
    grid-column: 1 / 9;
    grid-row: 1 / 8;
  }

  .portfolio-collage img:nth-child(2) {
    grid-column: 1 / 5;
    grid-row: 8 / 13;
  }

  .portfolio-collage img:nth-child(3) {
    grid-column: 5 / 9;
    grid-row: 8 / 13;
  }

  .portfolio-preview-rotator[data-preview-count="2"] .portfolio-collage img:first-child {
    grid-column: 1 / 9;
    grid-row: 1 / 8;
  }

  .portfolio-preview-rotator[data-preview-count="2"] .portfolio-collage img:nth-child(2) {
    grid-column: 2 / 8;
    grid-row: 8 / 13;
  }

  .project-folder-media {
    max-height: none;
  }

  .compact-callout {
    align-items: flex-start;
    flex-direction: column;
  }

  .project-carousel-controls {
    gap: 0.75rem;
  }

  .project-summary {
    align-items: flex-start;
    flex-direction: column;
  }

  .project-summary p,
  .project-summary a {
    width: 100%;
    border-top: 1px solid var(--line);
    border-left: 0;
    padding-inline: 0;
  }

  .project-summary p:first-child {
    border-top: 0;
  }

  .project-summary a {
    margin-left: 0;
  }

  .form-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .case-visual {
    padding: 1.25rem;
  }

  .case-meta div {
    grid-template-columns: 5.5rem 1fr;
  }

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

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

@media (max-width: 50rem) {
  .portfolio-page-hero::after {
    position: absolute;
    z-index: -1;
    top: 5.5rem;
    right: 1.25rem;
    width: 4.5rem;
    height: 4.5rem;
    display: block;
    border: 1px solid var(--line);
    border-radius: 1rem;
    background: linear-gradient(145deg, rgba(217, 207, 196, 0.12), rgba(18, 168, 255, 0.05));
    transform: rotate(9deg);
    content: "";
  }

  .contact-section {
    padding-top: 6.25rem;
  }
}

@media (max-width: 22rem) {
  .brand span {
    font-size: 0.78rem;
  }

  .menu-toggle {
    width: 2.8rem;
    height: 2.8rem;
  }
}