/* Responsive styles for Chinese Radicals Learning Website */
@media (max-width: 900px) {
  main {
    max-width: 98vw;
    padding: 0 1vw;
  }
  section {
    padding: 1rem;
  }
}

@media (max-width: 768px) {
  header {
    flex-direction: column;
    text-align: center;
    position: relative;
  }

  nav ul {
    flex-direction: column;
    gap: 1rem;
    margin-top: 1rem;
  }

  .hero-content h2 {
    font-size: 2rem;
  }

  #radical-grid-container {
    grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
  }

  .theme-switcher-container {
    top: 1rem;
    right: 1rem;
  }
}

@media (max-width: 600px) {
  header h1 {
    font-size: 1.3rem;
  }
  nav ul {
    flex-direction: column;
    gap: 0.5rem;
    align-items: flex-start;
  }
  section {
    padding: 0.5rem;
  }
  table, th, td {
    font-size: 0.95rem;
  }
  input[type="search"] {
    font-size: 0.95rem;
    padding: 0.4rem 0.7rem;
  }
}