/* Larger viewports */
@media (min-width: 700px) {
  .nav {
    position: static;
    transform: none;
    opacity: 1;
    pointer-events: auto;
    background: transparent;
    border-bottom: none;
  }

  .nav ul {
    flex-direction: row;
    gap: 0.5rem;
    padding: 0;
  }

  .nav a {
    padding: 0.6rem 0.8rem;
  }

  .menu-toggle {
    display: none;
  }

  main {
    padding: 0 1.25rem;
  }

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

@media (min-width: 1000px) {
  .site-header {
    padding: 1rem 2rem;
  }

  main {
    max-width: 1200px;
  }

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

  .card {
    padding: 1.25rem;
  }
}