body {
    margin: 0;
    font-family: 'Segoe UI', sans-serif;
    background: #1e1e1e;
    color: #dddddd;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 1rem;
    min-height: 100vh;
  }
  
  h2 {
    margin-top: 1rem;
    color: #7f5af0;
    font-weight: 600;
  }
  
  #video {
    border: 3px solid #00bfff;
    border-radius: 16px;
    margin-top: 1rem;
    box-shadow: 0 0 15px rgba(0, 191, 255, 0.3);
    max-width: 100%;
  }
  
  #mensaje {
    margin-top: 1rem;
    font-size: 1rem;
    color: #cccccc;
  }
  
  .marco {
    position: absolute;
    border: 2px dashed #7f5af0;
    border-radius: 12px;
    width: 80%;
    height: 50%;
    top: 25%;
    left: 10%;
    pointer-events: none;
  }
  
  #aviso-camara {
    margin-top: 1rem;
    padding: 0.8rem 1rem;
    background-color: #2a2a2a;
    color: #7f5af0;
    border-left: 4px solid #00bfff;
    border-radius: 8px;
    font-size: 0.9rem;
    max-width: 90%;
    text-align: center;
    box-shadow: 0 0 5px rgba(0, 191, 255, 0.2);
  }