@media (max-width: 980px) {
  .site-header,
  .site-footer,
  .hero,
  .section-grid,
  .contact-layout,
  .process-layout,
  .about-hero,
  .founder-layout,
  .project-hero,
  .project-dual-grid,
  .project-gallery,
  .project-mosaic,
  .masonry-grid,
  .card-grid,
  .offering-card,
  .cta-panel,
  .partner-invite,
  .partner-grid {
    grid-template-columns: 1fr;
  }

  .site-header,
  .cta-panel,
  .split-heading {
    display: grid;
  }

  .partners-invite-image {
    min-height: 340px;
  }

  .header-actions,
  .site-footer,
  .footer-links {
    justify-content: start;
  }

  .hero {
    min-height: auto;
  }

  .section-illustration-home {
    position: relative;
    right: auto;
    bottom: auto;
    width: min(72%, 360px);
    margin: 0 auto 20px;
  }

  .hero-facts,
  .two-columns,
  .project-hero-aside {
    grid-template-columns: 1fr;
  }

  .offering-card,
  .cta-panel,
  .split-heading {
    align-items: start;
  }
}

@media (max-width: 840px) {
  .site-shell {
    width: min(100vw - 24px, 100%);
    padding-top: 12px;
  }

  .site-header {
    grid-template-columns: 1fr;
    gap: 14px;
    border-radius: 28px;
    padding: 14px;
    justify-items: center;
  }

  .menu-toggle {
    display: block;
    position: absolute;
    top: 9px;
    right: 14px;
  }

  .header-actions {
    display: none;
    grid-column: 1 / -1;
    width: 100%;
    gap: 14px;
    align-items: start;
  }

  .site-header.is-menu-open .header-actions {
    display: grid;
  }

  .main-nav {
    display: grid;
    gap: 6px;
    justify-content: stretch;
  }

  .main-nav a {
    padding: 11px 14px;
    font-size: 0.92rem;
  }

  .lang-switch {
    width: fit-content;
  }

  .lang-button {
    padding: 8px 10px;
    font-size: 0.82rem;
  }

  .brand {
    width: 146px;
    justify-self: center;
  }

  h1 {
    max-width: 10.5ch;
    font-size: clamp(2.7rem, 16vw, 4.1rem);
  }

  h2 {
    max-width: 14ch;
  }

  .section,
  .hero,
  .page-hero {
    padding: 28px 0;
  }

  .media-card-tall,
  .media-card-hero {
    min-height: 440px;
  }

  .media-card-large {
    min-height: 320px;
  }

  .quote-card p,
  .media-caption strong {
    max-width: none;
  }

  .illustration-stage-founder,
  .illustration-stage-service {
    min-height: auto;
  }

  .footer-links {
    flex-wrap: wrap;
  }
}

@media (max-width: 420px) {
  .site-shell {
    width: min(100vw - 16px, 100%);
  }

  .site-header {
    padding: 12px;
  }

  .menu-toggle {
    top: 5px;
    right: 12px;
  }

  .brand {
    width: 132px;
  }

  .header-actions {
    gap: 10px;
  }

  .lang-button {
    padding: 7px 8px;
    font-size: 0.76rem;
  }

  .lang-switch {
    gap: 2px;
    padding: 3px;
  }

  .quote-card,
  .feature-card,
  .offering-card,
  .info-card,
  .cta-panel,
  .masonry-card,
  .project-card,
  .contact-form,
  .partner-card {
    padding: 20px;
  }
}