/* Reset */
  * {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
      font-family: Arial, Helvetica, sans-serif;
  }

  body {
      font-family: Arial, sans-serif;
      background-color: #0f172a;
      color: #fff;
      display: flex;
      justify-content: center;
      align-items: center;
      min-height: 100vh;
      flex-direction: column;
  }

  h1 {
      font-size: 32px;
      margin-bottom: 40px;
      text-align: center;
  }