body {
    margin: 0;
    font-family: 'Segoe UI', Tahoma, sans-serif;
    background-color: #f3f1ee;
    color: #212529;
    min-height: 100vh;
    max-width: 800px;
    margin: 40px auto;
    padding: 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
  }
  
  h1, h2 {
    font-size: 2.5rem;
    background: #ffffff;
    padding: 12px 24px;
    border: 3px solid black;
    box-shadow: 5px 5px 0px black;
    display: inline-block;
    font-weight: bold;
    text-transform: uppercase;
    margin-bottom: 40px;
  }
  
  .question, main {
    background: #ffffff;
    padding: 24px;
    border: 3px solid black;
    box-shadow: 4px 4px 0 black;
    border-radius: 0;
    margin-bottom: 30px;
    width: 100%;
  }
  
  .question.active {
    display: block;
    animation: fadeIn 0.2s ease-in-out;
  }
  
  label {
    display: block;
    margin: 12px 0;
    padding: 12px 16px;
    border: 2px solid black;
    background: #ffffff;
    cursor: pointer;
    font-weight: 500;
    transition: background-color 0.2s ease;
  }
  
  label:hover {
    background-color: #e9ecef;
  }
  
  textarea {
    width: 100%;
    height: 120px;
    font-size: 1rem;
    padding: 10px;
    margin-bottom: 10px;
    border: 2px solid black;
    box-shadow: 4px 4px 0px black;
    resize: none;
    font-family: monospace;
  }
  
  ul {
    list-style: none;
    padding: 0;
    text-align: left;
    width: 100%;
  }
  
  li {
    background: #e0e0e0;
    border: 2px solid black;
    padding: 8px;
    margin: 5px 0;
    box-shadow: 4px 4px 0px black;
  }
  
  button {
    border: 3px solid black;
    background-color: #46baf7;
    color: black;
    padding: 12px 24px;
    font-size: 1rem;
    cursor: pointer;
    margin-top: 20px;
    margin-right: 10px;
    box-shadow: 4px 4px 0 black;
    font-weight: 600;
    text-transform: uppercase;
  }
  
  button:hover {
    background-color: #0b5ed7;
    color: #fff;
  }
  
  #results {
    display: none;
    text-align: center;
    background-color: #ffffff;
    padding: 30px;
    border: 3px solid black;
    box-shadow: 5px 5px 0 black;
  }
  
  #results h2 {
    font-size: 2rem;
    text-transform: uppercase;
    margin-bottom: 20px;
  }
  
  #results img {
    max-width: 300px;
    margin-top: 20px;
    border: 3px solid black;
  }
  
  canvas {
    margin: 30px auto;
    display: block;
    max-width: 100%;
    border: 2px solid black;
  }
  
  @keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
  }
  
  .back-button {
    position: absolute;
    top: 20px;
    left: 20px;
    text-decoration: none;
    background-color: #ffffff;
    border: 3px solid black;
    padding: 10px 18px;
    font-weight: bold;
    color: #000;
    box-shadow: 4px 4px 0 black;
    text-transform: uppercase;
    transition: background-color 0.2s ease;
  }
  
  .back-button:hover {
    background-color: #e9ecef;
  }