@media (max-width: 1100px) {
  .hero {
    min-height: 0;
    grid-template-columns: minmax(0, 0.96fr) minmax(380px, 1.04fr);
  }
}

@media (max-width: 920px) {
  .hero,
  .contact-layout {
    grid-template-columns: 1fr;
  }

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

  .hero-media {
    min-height: 0;
    place-items: center;
    padding: 1rem;
  }

  .hero-visual {
    width: min(100%, 420px);
  }

  .hero-visual-image {
    width: min(100%, 760px);
  }

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

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

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

  .service-groups {
    grid-template-columns: 1fr;
  }

  .development-grid,
  .events-panel,
  .credibility-grid,
  .site-footer {
    grid-template-columns: 1fr;
  }

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

  .profile-card-wide {
    grid-column: span 2;
  }

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

  .collaborator-tools {
    grid-template-columns: 1fr;
  }

  .institutional-intro {
    grid-template-columns: 1fr;
  }

  .feature-strip,
  .problem-grid,
  .pillar-grid,
  .process-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .process-list::before {
    display: none;
  }

  .trail-steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-items: stretch;
  }

  .trail-step {
    transform: none;
  }

  .trail-step details {
    min-height: 100%;
  }

  .ramp-panel {
    grid-template-columns: 1fr;
  }

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

  .feature-strip article:nth-child(2) {
    border-right: 0;
  }

  .feature-strip article:nth-child(-n + 2) {
    border-bottom: 1px solid var(--color-line);
  }
}

@media (max-width: 760px) {
  .site-header-inner {
    grid-template-columns: auto auto;
    align-items: center;
    min-height: 70px;
  }

  .nav-toggle {
    position: relative;
    z-index: 21;
    display: grid;
    width: 3rem;
    height: 3rem;
    place-items: center;
    justify-self: end;
    border: 1px solid var(--color-line);
    border-radius: var(--radius-pill);
    background: var(--color-panel);
    color: var(--color-ink);
  }

  .nav-toggle-lines,
  .nav-toggle-lines::before,
  .nav-toggle-lines::after {
    display: block;
    width: 1.15rem;
    height: 2px;
    border-radius: 2px;
    background: currentColor;
    transition:
      transform var(--transition),
      opacity var(--transition);
  }

  .nav-toggle-lines {
    position: relative;
  }

  .nav-toggle-lines::before,
  .nav-toggle-lines::after {
    position: absolute;
    left: 0;
    content: "";
  }

  .nav-toggle-lines::before {
    transform: translateY(-0.42rem);
  }

  .nav-toggle-lines::after {
    transform: translateY(0.42rem);
  }

  .is-nav-open .nav-toggle-lines {
    background: transparent;
  }

  .is-nav-open .nav-toggle-lines::before {
    background: var(--color-ink);
    transform: rotate(45deg);
  }

  .is-nav-open .nav-toggle-lines::after {
    background: var(--color-ink);
    transform: rotate(-45deg);
  }

  .nav-panel {
    grid-column: 1 / -1;
    width: 100%;
  }

  .js-enabled .nav-panel {
    position: fixed;
    inset: 4.7rem 1rem auto 1rem;
    z-index: 20;
    display: grid;
    max-height: calc(100vh - 6rem);
    overflow-y: auto;
    border: 1px solid var(--color-line);
    border-radius: var(--radius-md);
    background: var(--color-panel);
    padding: var(--space-4);
    box-shadow: var(--shadow-soft);
    opacity: 0;
    pointer-events: none;
    transform: translateY(-0.5rem);
    transition:
      opacity var(--transition),
      transform var(--transition);
  }

  .js-enabled .is-nav-open .nav-panel {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
  }

  .main-nav {
    display: grid;
    width: 100%;
    gap: 0.25rem;
    font-size: 1rem;
  }

  .main-nav a {
    padding: 0.85rem 0.75rem;
  }

  .header-action {
    display: inline-flex;
    justify-content: center;
    width: 100%;
    margin-top: var(--space-2);
    background: var(--color-accent);
    color: var(--color-panel);
  }

  .feature-strip,
  .problem-grid,
  .pillar-grid,
  .process-list,
  .trail-steps,
  .ecosystem-grid,
  .profile-grid,
  .proof-grid,
  .cards-grid {
    grid-template-columns: 1fr;
  }

  .profile-card-wide {
    grid-column: auto;
  }

  .feature-strip article {
    border-right: 0;
    border-bottom: 1px solid var(--color-line);
  }

  .feature-strip article:last-child {
    border-bottom: 0;
  }

  .feature-strip article:nth-child(2) {
    border-bottom: 1px solid var(--color-line);
  }

  .insight-card {
    padding: 1.15rem;
  }

  .problem-transition {
    padding: var(--space-4);
  }

  .path-list,
  .intro-panel,
  .pillar-card {
    padding: 1.15rem;
  }

  .path-list {
    gap: 0.55rem;
  }

  .path-list span {
    padding: 0.5rem 0.68rem;
    font-size: 0.86rem;
  }

  .purpose-panel {
    padding: 1.35rem;
  }

  .process-step {
    grid-template-columns: auto minmax(0, 1fr);
    padding: 1.15rem;
  }

  .process-number {
    width: 3.2rem;
    height: 3.2rem;
  }

  .process-cta {
    padding: 1.15rem;
  }

  .process-cta .button {
    width: 100%;
    text-align: center;
  }

  .trail-step details {
    padding: 1.15rem;
  }

  .trail-step summary {
    grid-template-columns: auto minmax(0, 1fr) auto;
    align-items: center;
  }

  .trail-number {
    width: 2.45rem;
    height: 2.45rem;
  }

  .ramp-panel,
  .trail-note,
  .ecosystem-note {
    padding: 1.15rem;
  }

  .ecosystem-card {
    padding: 1.15rem;
  }

  .collaborator-tools {
    padding: 1rem;
  }

  .filter-list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .filter-chip {
    width: 100%;
  }

  .profile-card,
  .profile-cta,
  .service-group,
  .development-card {
    padding: 1.15rem;
  }

  .service-items li {
    align-items: flex-start;
    flex-direction: column;
  }

  .service-items strong {
    flex: 0 1 auto;
  }

  .services-note {
    padding: 1.15rem;
  }

  .events-panel,
  .event-empty,
  .credibility-note {
    padding: 1.15rem;
  }

  .founder-card {
    grid-template-columns: 1fr;
    padding: 1.15rem;
  }

  .history-card,
  .proof-card {
    padding: 1.15rem;
  }

  .faq-item summary {
    padding: 1rem;
  }

  .faq-item p {
    padding: 0.9rem 1rem 1rem;
  }

  .site-footer {
    gap: var(--space-5);
  }

  .profile-cta .button {
    width: 100%;
    text-align: center;
  }

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

  .button {
    text-align: center;
  }

  .lead-dialog[open] {
    grid-template-columns: 1fr;
  }

  .lead-dialog > img {
    min-height: 230px;
    border-radius: var(--radius-md) var(--radius-md) 0 0;
  }

  .dialog-close {
    top: 0.5rem;
    right: 0.5rem;
  }

  .hero-media {
    min-height: 0;
    padding: 0.75rem;
  }

  .hero-content {
    padding: 2rem 1rem 2.5rem;
  }

  .hero-content h1 {
    max-width: 17ch;
    font-size: clamp(2rem, 8.5vw, 2.35rem);
    line-height: 1.05;
  }

  .hero-lead {
    font-size: 1rem;
  }

  .hero-note {
    font-size: 0.88rem;
  }

  .hero-actions {
    gap: 0.75rem;
    margin-top: 1.25rem;
  }

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

  .hero-visual {
    width: min(100%, 300px);
  }

  .hero-visual-image {
    width: 100%;
  }

  .hero-logo-frame {
    inset: 19% 18% auto auto;
    width: 56%;
  }

  .hero-visual-image .hero-logo-frame {
    inset: 0;
    width: 100%;
  }

  .growth-steps {
    right: 0;
    bottom: 2%;
    width: 76%;
  }

  .connection-node {
    width: 0.7rem;
    height: 0.7rem;
  }
}

@media (max-width: 420px) {
  h1 {
    font-size: 2.55rem;
  }

  h2 {
    font-size: 1.85rem;
  }

  .site-header {
    padding-inline: 0;
  }

  .site-header-inner {
    padding-inline: 1rem;
  }

  .brand-logo {
    width: 2.75rem;
    height: 2.75rem;
  }

  .brand-text {
    max-width: 10rem;
    font-size: 1.12rem;
  }

  .hero-content h1 {
    max-width: 16ch;
    font-size: 1.98rem;
  }

  .hero-media {
    min-height: 0;
  }

  .hero-visual {
    width: min(100%, 260px);
  }

  .filter-list {
    grid-template-columns: 1fr;
  }
}