body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f4f4f9;
    color: #333;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
  }
  
  .container {
    background: #ffffff;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    width: 90%;
    max-width: 600px;
  }
  
  h1 {
    text-align: center;
    margin-bottom: 20px;
    color: #444;
  }
  
  .quests {
    display: flex;
    flex-direction: column;
    gap: 20px;
  }
  
  .quest-section {
    background: #f9f9ff;
    padding: 15px;
    border-radius: 10px;
    border: 1px solid #ddd;
  }
  
  .quest-section h2 {
    margin-top: 0;
    color: #555;
  }
  
  .quest-list {
    list-style: none;
    padding: 0;
    margin: 0;
  }
  
  .quest-list li {
    margin: 10px 0;
    display: flex;
    align-items: center;
  }
  
  .quest-list input[type="checkbox"] {
    margin-right: 10px;
    accent-color: #007bff;
  }
  
  .quest-list label {
    cursor: pointer;
    color: #333;
    transition: color 0.3s ease;
  }
  
  .quest-list input[type="checkbox"]:checked + label {
    text-decoration: line-through;
    color: #999;
  }