/* Responsive Design */
@media (max-width: 1024px) {
  .main-content {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  
  #html-input,
  #css-input,
  #js-input {
    height: 40vh;
  }
  
  #combined-output {
    height: 50vh;
  }

  .preview-container.mobile-mode {
    padding: 1rem;
  }

  .preview-container.mobile-mode iframe {
    width: 320px !important;
    height: 568px !important;
  }
}

@media (max-width: 768px) {
  header {
    padding: 1rem;
    flex-direction: column;
    gap: 1rem;
  }
  
  header h1 {
    font-size: 1.5rem;
  }
  
  .main-content {
    padding: 1rem;
  }
  
  .section-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }
  
  .output-actions {
    width: 100%;
    justify-content: space-between;
    flex-wrap: wrap;
  }

  .preview-mode-toggle {
    margin-right: 0;
    margin-bottom: 0.5rem;
  }
  
  textarea {
    font-size: 12px;
  }
  
  .settings-menu {
    min-width: 320px;
  }
  
  .theme-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .input-tab-actions {
    opacity: 1;
  }

  .preview-container.mobile-mode {
    padding: 0.5rem;
  }

  .preview-container.mobile-mode iframe {
    width: 280px !important;
    height: 498px !important;
    border-width: 4px;
    border-radius: 12px;
  }
}

@media (max-width: 480px) {
  .input-tabs-header {
    flex-direction: column;
  }

  .input-tab-group {
    border-bottom: 1px solid var(--border-color);
  }

  .input-tab-group:last-child {
    border-bottom: none;
  }

  .output-actions {
    flex-direction: column;
    gap: 0.5rem;
  }

  .preview-mode-toggle {
    width: 100%;
    justify-content: center;
  }

  .output-action-btn {
    width: 100%;
    justify-content: center;
  }

  .preview-container.mobile-mode iframe {
    width: 250px !important;
    height: 444px !important;
  }
}