:root {
  color-scheme: dark;
}

@media (max-width: 900px) {
  .projects-list {
    grid-template-columns: 1fr;
  }

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

  .about-visual img {
    min-height: 320px;
  }
}

@media (max-width: 700px) {
  .site-header {
    padding: 1rem 1rem 0.8rem;
    flex-direction: column;
    gap: 0.6rem;
  }

  .nav-links a {
    margin: 0 0.7rem;
  }

  .hero-content {
    padding: 5.2rem 1rem 3rem;
    text-align: center;
  }

  .hero-content::after {
    margin-inline: auto;
  }

  .hero h1 {
    font-size: 2.3rem;
  }

  .hero-copy {
    font-size: 0.98rem;
  }

  .section {
    padding: 4.5rem 0;
  }

  .footer-content {
    flex-direction: column;
  }
}