body {
    font-family: 'Segoe UI', sans-serif;
    background: #1e1e2f;
    color: #f1f1f1;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 2rem;
  }
  
  h1 {
    color: #00bcd4;
  }
  
  input, textarea, button {
    width: 100%;
    max-width: 600px;
    margin: 0.5rem 0;
    padding: 0.6rem;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
  }
  
  input, textarea {
    background-color: #2c2c3e;
    color: #fff;
  }
  
  textarea {
    height: 100px;
    resize: vertical;
  }
  
  button {
    background-color: #00bcd4;
    color: #fff;
    cursor: pointer;
    transition: background-color 0.3s ease;
  }
  
  button:hover:enabled {
    background-color: #0097a7;
  }
  
  .button-group {
    display: flex;
    gap: 1rem;
    max-width: 600px;
    width: 100%;
    margin-top: 0.5rem;
  }
  
  #stopButton {
    background-color: #e53935;
  }
  
  #stopButton:hover:enabled {
    background-color: #c62828;
  }
  
  #log {
    max-width: 600px;
    margin-top: 1rem;
    padding: 1rem;
    background: #12121c;
    border-radius: 8px;
    white-space: pre-wrap;
    height: 200px;
    overflow-y: auto;
    font-size: 0.9rem;
  }
  
  footer {
    margin-top: 2rem;
    font-size: 0.8rem;
    color: #888;
  }