@media (max-width: 768px) {
  .nav-links {
    display: none;
  }

  .nav-hamburger {
    display: flex;
  }

  body.nav-open .nav-links {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: var(--nav-height);
    left: 0;
    width: 100%;
    background: var(--color-bg);
    padding: var(--space-6);
    gap: var(--space-6);
    z-index: 99;
    align-items: center;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.06);
  }

  body.nav-open .nav-btn {
    flex-direction: row;
    width: auto;
    gap: var(--space-3);
  }

  .hero-content {
    grid-template-columns: 1fr;
    gap: var(--space-10);
  }

  .hero-subtitle,
  .hero-intro {
    font-size: var(--text-2xl);
  }

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

  .about-layout {
    grid-template-columns: 1fr;
    gap: var(--space-10);
  }

  .about-photos {
    align-items: stretch;
    max-width: 320px;
    margin: 0 auto;
  }

  .about-photo--primary {
    max-width: none;
  }

  .about-photo--secondary {
    align-self: center;
    margin-top: 0;
    max-width: 200px;
  }

  .nav-container {
    padding: 0 var(--space-4);
  }

  .work-head,
  .work-body,
  .about-section-head,
  .about-layout,
  .contact-head,
  .contact-rows {
    padding-left: var(--space-4);
    padding-right: var(--space-4);
  }

  .container {
    padding: 0 var(--space-4);
  }
}

@media (min-width: 769px) {
  .nav-hamburger {
    display: none;
  }

  .nav-links {
    display: flex;
  }
}

@media (max-width: 640px) {
  .hero-subtitle,
  .hero-intro {
    font-size: var(--text-xl);
  }

  .nav-logo {
    font-size: var(--text-2xl);
  }

  .work-kicker,
  .about-kicker,
  .contact-kicker {
    font-size: var(--text-2xl);
  }

  .card-monogram {
    font-size: 2.75rem;
  }

  img.card-monogram {
    height: 2.75rem;
  }

  .contact-row {
    grid-template-columns: 36px 1fr;
    gap: var(--space-4);
  }

  .contact-row svg {
    width: 36px;
    height: 36px;
  }

  #main-nav.case-study-nav .nav-container {
    flex-wrap: wrap;
    row-gap: var(--space-2);
    padding-top: var(--space-3);
    padding-bottom: var(--space-3);
  }
}