esheet" href="css/sec1.css" />
  <link rel="stylesheet" href="css/sec2.css" />
  <link rel="stylesheet" href="css/sec3.css" />
  <!-- <link rel="stylesheet" href="css/sec4.css" /> -->
  <!-- material -->
  <link rel="stylesheet"
    href="https://fonts.googleapis.com/css2?family=Material+Symbols+Outlined:opsz,wght,FILL,GRAD@48,400,0,0" />
  <link rel="stylesheet" href="css/desktop_9.css">
  <script src="./js/Landingpage.js"></script>
  <script>
    function toggleTheme() {
      var navbar = document.getEle