body {
    margin: 0;
    font-family: Arial, sans-serif;
    background: #f1f5f9;
  }

  /* Sidebar */
  .sidebar {
    height: 100vh;
    width: 250px;
    position: fixed;
    top: 0;
    left: 0;
    background-color: #2563eb;
    padding-top: 20px;
    overflow-y: auto;
  }

  .sidebar a, .dropdown-btn {
    padding: 12px 20px;
    text-decoration: none;
    color: white;
    display: block;
    border: none;
    background: none;
    width: 100%;
    text-align: left;
    cursor: pointer;
    outline: none;
    font-size: 16px;
    transition: background 0.2s;
  }

  .sidebar a:hover, .dropdown-btn:hover {
    background-color: #3b82f6;
  }

  .active {
    background-color: #1e40af;
  }

  /* Dropdown container */
  .dropdown-container {
    display: none;
    background-color: #1e3a8a;
    padding-left: 15px;
  }

  .dropdown-container a {
    padding: 10px 20px;
    font-size: 14px;
  }

  /* Main content */
  .main {
    margin-left: 260px;
    padding: 20px;
  }
  
  
    button.btn {
      background: #CAE8E8;
      border: 2px solid #2563eb;
      cursor: pointer;
      border-radius: 6px;
      padding: 6px 10px;
    }

    button.btn:hover {
      background: #DEC8AF;
      color: #1e3a8a;
    }
  
  
 
   
  /* -----------------------------
   Notes and Practice
   ----------------------------- */
    .note {
      background: #EBE8C0;
      border-left: 4px solid #06b6d4;
      padding: 12px;
      border-radius: 6px;
      margin-top: 10px;
    }

    .practice {
      background: #f8fafc;
      padding: 15px;
      border-radius: 10px;
      margin-top: 10px;
    }

  .bluetext
  {
     color: blue; 
     font-style: italic;
  }
  header {
    background-color: #f8fafc;
    padding: 15px 20px;
    border-radius: 10px;
    margin-bottom: 20px;
  }

   
   .clickable {
      cursor: pointer;
      padding: 4px 4px;
      border-radius: 4px;
      transition: background-color 0.2s ease;
    }

    .clickable:hover {
      
       background-color: #EBE8C0;
    }
    
    li a {
        display: block;
        width: 100%;
    }
    
   /* -----------------------------
   Tables
    ----------------------------- */
    table {
      width: 100%;
      border-collapse: collapse;
      margin-top: 12px;
    }

    td {
      border: 1px solid #e5e7eb;
      padding: 10px;
    }
   
    th {
      /* background: #f8fafc; */
      border: 1px solid #e5e7eb;
      padding: 10px;
      background-color: #B5C8C9; /* light blue */
      color: black;
      font-weight: 600;
      text-align: left;
    }

    /* Clickable cells */
    td.clickable {
      cursor: pointer;
      color: #2563eb;
      font-weight: 600;
    }

    td.clickable:hover {
      /* text-decoration: underline;*/
      background-color: #EBE8C0;
    }



  h1 {
    margin: 0;
    font-size: 26px;
    color: #0f172a;
  }

  /* Responsive for mobile */
  @media (max-width: 700px) 
  {
    .sidebar {
      width: 100%;
      height: auto;
      position: relative;
    }
    .main {
      margin-left: 0;
      padding: 10px;
    }
  }
  /********** for hidding answers ******/
  /* Keep column space but hide text */
  .hmong-col {
    visibility: hidden;
    cursor: pointer;
  }

  /* Show one cell */
  .hmong-col.revealed {
    visibility: visible;
    background: #eef9f0;
  }

  /* Show all answers */
  .show-all .hmong-col {
    visibility: visible;
  }
  
  .blist li {
    font-weight: bold;
  }

  /* Optional visual hint */
  .hmong-col:not(.revealed)::after {
    content: " (click to reveal)";
    color: #999;
    font-size: 0.8em;
    visibility: visible;
  }

  .show-all .hmong-col::after,
  .hmong-col.revealed::after {
    content: "";
  }
  /* <ul class="benefits"> */
  .benefits {
      list-style: none;
      padding-left: 0;
  }

  .benefits li::before {
     content: "✔";
     color: #28a745;          /* makes check green */
     font-weight: bold;
     margin-right: 8px;
  }
  /* below here is for no dot ul and li */
  .check-list {
      list-style: none;   /* remove default bullet */
      padding: 0;
    }

    .check-list li {
      position: relative;
      padding-left: 28px;
      margin-bottom: 8px;
    }
    /* before each li, you must put the check mark here ✔*/
    .check-list li::before {
        /* content: "✔"; */
      position: absolute;
      left: 0;
      color: #28a745;
      font-weight: bold;
    }