html {
    scroll-behavior: smooth; /* Enables smooth scrolling for anchor links */
  }
  
  .collapsible {
    overflow: hidden;
    transition: height 0.3s ease-out; /* Smoothly expands/collapses */
    height: 0; /* Hidden by default */
  }
  
  .collapsible.open {
    height: auto; /* Content height dynamically calculated by JavaScript */
  }