@media (max-width: 68rem) {
  .primary-nav {
    position: fixed;
    z-index: 49;
    top: var(--header-height);
    right: 1rem;
    left: 1rem;
    display: grid;
    max-height: calc(100dvh - var(--header-height) - 1rem);
    gap: 0.25rem;
    padding: 0.8rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow-y: auto;
    background: white;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    pointer-events: none;
    transform: translateY(-0.75rem);
    transition: opacity var(--transition), transform var(--transition);
  }

  .primary-nav.is-open {
    opacity: 1;
    pointer-events: auto;
    transform: none;
  }

  .primary-nav a {
    padding: 0.85rem 1rem;
  }

  .primary-nav .nav-cta {
    margin-left: 0;
  }

  .primary-nav .nav-cta {
    margin-top: 0.35rem;
    text-align: center;
  }

  .menu-toggle {
    display: grid;
  }

  .hero-grid {
    grid-template-columns: 1fr;
  }

  .hero-copy {
    max-width: 48rem;
  }

  .preview-shell {
    max-width: 48rem;
  }

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

  .grid-4,
  .steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .footer-grid {
    grid-template-columns: 1.4fr repeat(3, 1fr);
    gap: var(--space-5);
  }
}

@media (max-width: 52rem) {
  :root {
    --space-8: 3.5rem;
    --space-9: 4.75rem;
  }

  .split,
  .solution-row,
  .form-layout {
    grid-template-columns: 1fr;
  }

  .solution-row:nth-child(even) > :first-child {
    order: initial;
  }

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

  .footer-about {
    grid-column: 1 / -1;
  }
}

@media (max-width: 42rem) {
  .container,
  .container-narrow {
    width: min(calc(100% - 1.25rem), var(--container));
  }

  .brand {
    gap: 0.55rem;
    font-size: 1.05rem;
  }

  .brand-logo {
    width: 2.1rem;
    height: 2.1rem;
  }

  .hero {
    padding-block: 3.8rem;
  }

  .button-row .button {
    width: 100%;
  }

  .trust-grid,
  .grid-2,
  .grid-3,
  .grid-4,
  .steps,
  .form-grid,
  .choice-grid {
    grid-template-columns: 1fr;
  }

  .preview-shell {
    margin-inline: -0.2rem;
    padding: 0.45rem;
    border-radius: 1.2rem;
  }

  .preview-browser {
    min-height: 25rem;
  }

  .preview-layout {
    min-height: 22.2rem;
    grid-template-columns: 3rem 1fr;
  }

  .preview-sidebar {
    padding-inline: 0.42rem;
  }

  .preview-content {
    padding: 0.7rem;
  }

  .preview-metrics {
    grid-template-columns: 1fr 1fr;
  }

  .preview-metrics .metric:last-child {
    display: none;
  }

  .preview-panels {
    grid-template-columns: 1fr;
  }

  .preview-panels .preview-panel:last-child {
    display: none;
  }

  .preview-label {
    right: 0.8rem;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }

  .footer-about,
  .footer-contact {
    grid-column: 1 / -1;
  }

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

  .field-full,
  .form-group {
    grid-column: auto;
  }

  .email-options {
    grid-template-columns: 1fr;
  }

  .anchor-nav {
    margin-inline: -0.15rem;
    border-radius: var(--radius-md);
  }
}

@media (max-width: 24rem) {
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .footer-about,
  .footer-contact {
    grid-column: auto;
  }
}