body {
    margin: 0;
    font-family: 'Helvetica Neue', sans-serif;
    background-color: #0f0f0f;
    color: #f5f5f5;
  }
  header {
    padding: 2rem;
    text-align: center;
    background-color: #1a1a1a;
  }
  header h1 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
  }
  header p {
    font-size: 1.25rem;
    color: #bbbbbb;
  }
  .cta {
    margin-top: 2rem;
  }
  .cta a {
    display: inline-block;
    background: #00d084;
    color: #000;
    padding: 1rem 2rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: bold;
  }
  .features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    padding: 4rem 2rem;
    background-color: #121212;
  }
  .feature {
    background-color: #1e1e1e;
    border-radius: 10px;
    padding: 2rem;
    text-align: center;
  }
  .feature h3 {
    color: #00d084;
  }
  footer {
    background: #0f0f0f;
    padding: 2rem;
    text-align: center;
    color: #777;
    font-size: 0.9rem;
  }