@media (max-width: 1100px) {
  .hero { grid-template-columns: 1fr 1fr; }
  .hero-copy { padding-right: 34px; }
  .article-grid { grid-template-columns: repeat(2, 1fr); gap: 36px 18px; }
  .card-copy h4, .card-copy > p:not(.story-label) { min-height: 0; }
  .footer-grid { grid-template-columns: 1.25fr .75fr .75fr; }
  .footer-manifesto { grid-column: 1 / -1; max-width: 520px; }
}

@media (max-width: 900px) {
  :root { --shell: min(100% - 40px, 760px); }
  .section-space { padding-block: 82px; }
  .menu-toggle { display: block; margin-left: auto; }
  .main-nav {
    position: fixed; inset: 76px 0 auto; display: none; flex-direction: column; align-items: stretch; gap: 0;
    padding: 12px 20px 28px; background: rgba(251,248,241,.98); border-bottom: 1px solid var(--line);
  }
  .main-nav.is-open { display: flex; }
  .main-nav a { padding: 15px 0; border-bottom: 1px solid var(--line); font-size: 14px; }
  .main-nav a::after { display: none; }
  .hero { grid-template-columns: 1fr; padding-top: 0; }
  .hero-copy { padding: 72px 0 40px; order: 1; }
  .hero h1 { font-size: clamp(66px, 15vw, 98px); }
  .hero-visual { order: 2; padding: 0 0 38px; }
  .hero-photo-frame { min-height: 620px; border-radius: 0 70px 0 0; }
  .hero-side-label { right: -42px; }
  .topic-row { justify-content: flex-start; }
  .section-heading { align-items: start; flex-direction: column; }
  .featured-story { grid-template-columns: 1fr; }
  .featured-art { min-height: 330px; }
  .path-grid { grid-template-columns: 1fr; }
  .path-card { min-height: 0; grid-template-columns: auto 1fr auto; grid-template-rows: auto; align-items: start; border-right: 0; border-bottom: 1px solid rgba(255,255,255,.14); }
  .path-card:last-child { border-bottom: 0; }
  .about { grid-template-columns: 1fr; gap: 48px; }
  .about-visual { min-height: 700px; }
  .ecosystem-grid { grid-template-columns: 1fr; gap: 42px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 640px) {
  :root { --shell: calc(100% - 28px); --radius: 18px; }
  .header-inner { min-height: 68px; }
  .brand-mark { width: 31px; height: 31px; font-size: 25px; }
  .brand-copy strong { font-size: 13px; }
  .main-nav { top: 68px; }
  .hero-copy { padding-top: 54px; }
  .hero h1 { font-size: clamp(56px, 18vw, 78px); line-height: .86; }
  .hero-lede { font-size: 15px; }
  .hero-actions { display: grid; grid-template-columns: 1fr 1fr; }
  .button { min-width: 0; gap: 8px; padding: 13px 14px; }
  .hero-note { margin-top: 38px; }
  .hero-photo-frame, .hero-photo-frame img { min-height: 480px; }
  .hero-photo-frame { border-radius: 0 54px 0 0; }
  .hero-side-label { display: none; }
  .topic-row { min-height: 62px; }
  .section-space { padding-block: 68px; }
  .section-heading { margin-bottom: 30px; }
  .section-heading h2 { font-size: 46px; }
  .featured-art { min-height: 260px; }
  .featured-copy { padding: 30px 24px; }
  .featured-copy h3 { font-size: 33px; }
  .story-meta { grid-template-columns: 1fr 1fr; }
  .story-meta strong { grid-column: 1 / -1; justify-self: start; }
  .latest-head { margin-top: 42px; }
  .latest-head span { display: none; }
  .article-grid { grid-template-columns: 1fr; }
  .card-art { aspect-ratio: 1.65; }
  .card-art span { font-size: 52px; }
  .path-card { grid-template-columns: 34px 1fr auto; padding-inline: 4px; }
  .path-card h3 { font-size: 34px; }
  .about-visual, .about-visual img { min-height: 520px; }
  .about-copy { padding-right: 0; }
  .about h2, .ecosystem h2 { font-size: 48px; }
  .about-lede { font-size: 18px !important; }
  .ecosystem { padding-block: 70px; }
  .ecosystem-links a { grid-template-columns: 28px 90px 1fr auto; gap: 8px; }
  .ecosystem-links small { font-size: 10px; }
  .footer-grid { grid-template-columns: 1fr; gap: 36px; }
  .footer-manifesto { grid-column: auto; }
  .footer-bottom { flex-direction: column; gap: 8px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; animation: none !important; }
}