@media (max-width: 1024px) {
  .hero-grid,
  .split,
  .legend-grid {
    grid-template-columns: 1fr;
  }

  .legend-section {
    padding: clamp(96px, 12vw, 130px) 0;
  }

  .legend-grid {
    justify-items: center;
    text-align: center;
  }

  .legend-symbol {
    font-size: clamp(20rem, 42vw, 24rem);
  }

  .legend-divider {
    width: min(260px, 62vw);
    min-height: 1px;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(212, 175, 55, .78), transparent);
  }

  .legend-copy {
    max-width: 36ch;
  }

  .legend-copy h2 {
    max-width: 12ch;
    margin-inline: auto;
    font-size: clamp(2rem, 7vw, 3rem);
  }

  .legend-body {
    text-align: left;
  }

  .signal-panel {
    margin-top: 0;
    max-width: 560px;
  }
}

@media (max-width: 768px) {
  .header-row {
    min-height: 70px;
  }

  .header-cta {
    display: none;
  }

  .menu-button {
    display: block;
    flex: 0 0 auto;
  }

  .nav {
    position: fixed;
    left: 16px;
    right: 16px;
    top: 82px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 12px;
    background: rgba(17, 17, 17, .96);
    border: 1px solid rgba(255, 255, 255, .16);
  }

  .nav.is-open {
    display: flex;
  }

  .nav a {
    min-height: 52px;
    border-bottom: 1px solid rgba(255, 255, 255, .1);
  }

  .nav a:last-child {
    border-bottom: 0;
  }

  .nav-open .menu-button span:first-child {
    transform: translateY(3.5px) rotate(45deg);
  }

  .nav-open .menu-button span:last-child {
    transform: translateY(-3.5px) rotate(-45deg);
  }

  .hero,
  .about-hero {
    min-height: auto;
    padding-top: 118px;
  }

  .hero {
    padding-bottom: 48px;
  }

  .hero-shade {
    background:
      linear-gradient(180deg, rgba(17, 17, 17, .74), rgba(17, 17, 17, .94)),
      linear-gradient(90deg, rgba(17, 17, 17, .88), rgba(17, 17, 17, .52));
  }

  h1 {
    font-size: clamp(2.6rem, 15vw, 4.4rem);
    max-width: 100%;
  }

  .about-hero h1 {
    max-width: 100%;
    font-size: clamp(1.72rem, 8.2vw, 2.55rem);
    line-height: .94;
  }

  .about-hero .word-reveal span:first-child {
    flex-basis: 100%;
  }

  h2 {
    font-size: clamp(2rem, 11vw, 3.2rem);
    max-width: 100%;
  }

  .lead {
    font-size: 1rem;
  }

  .btn {
    width: 100%;
    padding-inline: 16px;
    text-align: center;
  }

  .signal-panel {
    padding: 18px;
  }

  .signal-panel::before {
    left: 18px;
    right: 18px;
  }

  .section {
    padding: 68px 0;
  }

  .feature-grid,
  .value-grid {
    grid-template-columns: 1fr;
  }

  .feature-card,
  .value-card {
    min-height: 190px;
  }

  .legend-section {
    padding: 84px 0 92px;
  }

  .legend-grid {
    gap: 30px;
  }

  .legend-chapter {
    margin-bottom: 12px;
    font-size: .68rem;
  }

  .legend-symbol {
    font-size: clamp(15rem, 68vw, 17.5rem);
  }

  .legend-mark small {
    margin-top: 14px;
    max-width: 22ch;
  }

  .legend-copy {
    max-width: min(34ch, 100%);
    font-size: 1.05rem;
    line-height: 1.72;
  }

  .legend-copy h2 {
    max-width: 11ch;
    font-size: clamp(2rem, 10vw, 2.75rem);
  }

  .legend-body p:first-child::first-letter {
    font-size: 3.4em;
  }

  .footer-row {
    min-height: 0;
    padding: 28px 0;
    align-items: flex-start;
    justify-content: center;
    flex-direction: column;
  }

  .footer-contacts {
    justify-content: flex-start;
  }
}

@media (max-width: 640px) {
  .container,
  .narrow {
    width: min(100% - 24px, var(--max));
  }

  .about-hero .narrow {
    margin-inline: auto;
  }

  .brand img {
    width: 48px;
  }

  .brand small {
    font-size: .6rem;
  }

  .actions {
    gap: 10px;
  }

  .cta-shell {
    padding: 24px 18px;
  }
}