@media(max-width:700px){
  body{overscroll-behavior-y:contain}
  a,button{touch-action:manipulation}

  /* Bottom page navigation should follow content, not cover 3D controls */
  .separate-page-nav{
    position:static!important;
    bottom:auto!important;
    backdrop-filter:none!important;
    box-shadow:none!important;
    background:transparent!important;
    margin-top:10px!important;
  }

  /* Clear, tappable controls */
  .site-nav-v15 a,.separate-page-nav a{
    -webkit-tap-highlight-color:rgba(73,125,116,.12);
  }

  /* TOC cards remain easy to tap on phones */
  #netToc a{
    min-height:44px;
    box-sizing:border-box;
  }

  /* Prevent accidental horizontal page scrolling */
  #chapter2Pane,.chapter03-shell{overflow-x:hidden!important}
}