body {
      margin: 0;
      height: 100vh;
      display: flex;
      justify-content: center;
      align-items: center;
      background: #0a0a0f;
      font-family: system-ui, sans-serif;
      color: #ffffffcc;
      text-align: center;
    }
    h1 {
      font-size: 2.5rem;
      font-weight: 600;
      opacity: 0.9;
    }