* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }
  
  body {
    font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto,
      Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: white;
    background-color: #0a0a0a;
  }
  
  .main {
    background: linear-gradient(
      180deg,
      rgba(236, 89, 21, 0.1) 0%,
      transparent 100%
    );
    min-height: 100vh;
    padding: 2rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 2rem;
  }
  
  .heading {
    font-weight: 600;
    font-size: 60px;
  }
  
  .btns {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
  }
  
  .btn-group {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
  
    margin: 12px;
    border-radius: 12px;
  }
  
  .btns a {
    text-decoration: none;
    color: #ffbf86;
    background: rgba(231, 255, 253, 0.1);
    padding: 0.8rem 1rem;
    border-radius: 10px;
    font-size: 14px;
    width: 150px;
    text-align: center;
    transition: background 0.3s ease;
  }
  
  .btns a:hover {
    background: rgba(231, 255, 253, 0.2);
  }
  
  .demo-link {
    font-size: 12px;
    background: rgba(255, 255, 255, 0.1);
    color: #80c4ff;
    padding: 0.5rem 1rem;
    border-radius: 8px;
  }
  
  .demo-link:hover {
    background: rgba(255, 255, 255, 0.2);
  }