@media (max-width: 768px) {
  .container {
    padding: 0 1.5rem;
  }

  .header-inner {
    flex-direction: column;
    gap: 1rem;
  }

  .site-nav ul {
    flex-direction: column;
    gap: 0;
    width: 100%;
  }

  .site-nav a {
    display: block;
    text-align: center;
    border-right: none;
    border-bottom: 1px solid var(--border-color);
  }

  .section.head {
    padding-left: 1.5rem;
    border-left-width: 4px;
  }

  .section.head h1 {
    font-size: 3rem;
  }

  .section.head p {
    font-size: 1rem;
  }

  .section header {
    padding-left: 1rem;
  }

  .section header h2 {
    font-size: 2.5rem;
  }

  .footer-columns {
    flex-direction: column;
    gap: 2rem;
  }

  .footer-links ul {
    flex-direction: column;
    gap: 0;
  }

  .footer-links a {
    display: block;
    text-align: center;
  }
}