body {
    margin: 0;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #282c34;
    color: #61dafb;
  }
  .notification {
    position: fixed;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    background-color: #61dafb;
    color: #282c34;
    padding: 10px;
    border-radius: 5px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.3);
    opacity: 0;
    transition: opacity 0.5s ease-in-out;
  }
  
  .notification.show {
    opacity: 1;
  }
  
  .container {
    max-width: 600px;
    margin: 50px auto;
    padding: 20px;
    background-color: #1e1e1e;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.3);
  }
  
  h1 {
    font-size: 24px;
    margin-bottom: 20px;
  }
  
  label {
    display: block;
    margin-bottom: 5px;
    font-size: 14px;
  }
  
  textarea,
  input,
  button {
    width: 100%;
    padding: 10px;
    margin-bottom: 15px;
    box-sizing: border-box;
    border: 1px solid #333;
    background-color: #444;
    color: #fff;
    border-radius: 5px;
  }
  
  button {
    cursor: pointer;
    background-color: #61dafb;
    color: #282c34;
    font-size: 16px;
    font-weight: bold;
  }
  
  button:hover {
    background-color: #45aaf2;
  }
  
  textarea[readonly] {
    background-color: #333;
  }
  
  /* Adjustments for the Paste and Copy buttons */
  button:nth-child(2),
  button:nth-child(4) {
    background-color: #4caf50;
  }
  
  button:nth-child(2):hover,
  button:nth-child(4):hover {
    background-color: #45a045;
  }