body {
    font-family: Arial, sans-serif;
    margin: 20px;
    background-color: #f4f4f9;
    color: #333;
  }
  
  h1 {
    text-align: center;
    color: #333;
  }
  
  .input-container {
    display: flex;
    justify-content: center;
    margin-bottom: 20px;
  }
  
  #taskInput {
    width: 70%;
    padding: 10px;
    font-size: 16px;
    border: 1px solid #ccc;
    border-radius: 5px;
  }
  
  #addTaskButton {
    padding: 10px 20px;
    font-size: 16px;
    margin-left: 10px;
    background-color: #007bff;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
  }
  
  #addTaskButton:hover {
    background-color: #0056b3;
  }
  
  .task-list {
    list-style-type: none;
    padding: 0;
    max-width: 600px;
    margin: 0 auto;
  }
  
  .task-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px;
    margin-bottom: 10px;
    border: 1px solid #ddd;
    border-radius: 5px;
    background-color: #fff;
  }
  
  .task-item.completed {
    color: gray;
    background-color: #bfdac6;
  }
  
  .task-item button {
    padding: 5px 10px;
    font-size: 14px;
    border: none;
    border-radius: 3px;
    cursor: pointer;
  }
  
  .task-item .complete-button {
    background-color: #28a745;
    color: white;
  }
  
  .task-item .complete-button:hover {
    background-color: #218838;
  }
  
  .task-item .delete-button {
    background-color: #dc3545;
    color: white;
  }
  
  .task-item .delete-button:hover {
    background-color: #c82333;
  }