@media (max-width: 1160px) {
  .hero-grid,
  .grid-2,
  .footer-grid,
  .cta-card,
  .overview,
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .grid-3 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .footer-bottom,
  .section-head {
    align-items: flex-start;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 10px;
  }

  .brand-logo {
    height: 54px;
    max-height: 54px;
  }
}

@media (max-width: 900px) {
  .header-shell {
    gap: 12px;
  }

  .brand-row {
    justify-content: flex-start;
    min-height: 52px;
  }

  .nav-row {
    justify-content: flex-end;
    min-height: 52px;
  }

  .brand-logo {
    height: 48px;
    max-height: 48px;
  }

  .nav-toggle {
    display: flex;
  }

  .nav-links {
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    width: 100%;
    padding: 10px;
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: 18px;
    background: rgba(6, 16, 30, 0.96);
    box-shadow: 0 20px 50px rgba(0,0,0,0.35);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    z-index: 999;
  }

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

  .nav-links a {
    width: 100%;
    padding: 14px 16px;
    border-radius: 14px;
  }

  .nav-links a::after {
    display: none;
  }
}

@media (max-width: 760px) {
  .container {
    width: min(calc(100% - 20px), var(--max-width));
  }

  .site-header {
    border-bottom: 1px solid rgba(93,168,255,0.10);
  }

  .header-shell {
    grid-template-columns: 1fr auto;
    min-height: auto;
    padding: 10px 0 12px;
    gap: 10px;
  }

  .brand-row {
    justify-content: flex-start;
    min-height: 46px;
    padding-left: 0;
  }

  .brand-logo {
    height: 42px;
    max-height: 42px;
  }

  .nav-row {
    justify-content: flex-end;
    min-height: 46px;
  }

  main section {
    padding: 86px 0;
  }

  .hero {
    padding-top: 24px;
  }

  .hero-copy,
  .hero-card,
  .hero-card-full,
  .section-card,
  .feature-card,
  .footer-card,
  .band {
    padding: 22px;
    border-radius: 22px;
  }

  .hero-actions,
  .cta-actions,
  .form-actions,
  .contact-actions {
    display: grid;
    grid-template-columns: 1fr;
  }

  .btn,
  .btn-primary,
  .btn-secondary {
    width: 100%;
  }

  .metrics,
  .grid-3,
  .band-grid,
  .footer-grid,
  .grid-2 {
    grid-template-columns: 1fr;
  }

  .section-head {
    grid-template-columns: 1fr;
    gap: 14px;
  }

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

@media (max-width: 520px) {
  .container {
    width: min(calc(100% - 16px), var(--max-width));
  }

  .brand-logo {
    height: 38px;
    max-height: 38px;
  }

  .hero-copy,
  .hero-card,
  .hero-card-full,
  .section-card,
  .feature-card,
  .footer-card,
  .band {
    padding: 18px;
    border-radius: 18px;
  }

  .eyebrow,
  .label {
    font-size: 0.76rem;
    letter-spacing: 0.14em;
  }

  h1,
  .hero h1,
  .hero-card-full h1 {
    font-size: clamp(2.3rem, 10vw, 3.4rem);
    max-width: 10ch;
  }

  .hero p,
  .hero-card-full p,
  .section-head p,
  .section-card p,
  .feature-card p {
    font-size: 0.95rem;
    line-height: 1.7;
  }

  .metric,
  .band-tile {
    padding: 16px;
  }

  .footer-card {
    padding: 18px;
  }
}