@media (max-width: 920px) {
  .hero,
  .split,
  .contact {
    grid-template-columns: minmax(0, 1fr);
  }

  .hero {
    padding-top: 56px;
  }

  .project-grid,
  .case-study-grid,
  .cv-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 680px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
    gap: 12px;
  }

  .nav {
    width: 100%;
    justify-content: flex-start;
    gap: 8px;
    font-size: 0.88rem;
  }

  .nav a {
    padding-right: 10px;
  }

  main {
    width: min(calc(100% - 28px), 1180px);
  }

  .hero {
    padding-top: 42px;
    gap: 32px;
  }

  .hero-copy,
  .profile-panel,
  .summary,
  .section,
  .contact {
    min-width: 0;
  }

  .hero-copy,
  .lead {
    max-width: 100%;
    overflow-wrap: anywhere;
  }

  h1 {
    max-width: 100%;
    font-size: clamp(1.9rem, 9vw, 2.2rem);
    line-height: 1.02;
    word-break: normal;
  }

  .lead {
    font-size: 1rem;
  }

  .summary,
  .project-grid,
  .case-study-grid,
  .stack-list,
  .cv-grid {
    grid-template-columns: 1fr;
  }

  .profile-panel {
    padding: 20px;
  }

  .contact {
    padding: 24px;
  }

  .footer {
    flex-direction: column;
  }
}