/* Estilos base (móviles) */
body {
    margin: 0;
    padding: 0;
    background: linear-gradient(135deg, #1d1d1d, #2a2a2a);
    color: #ffffff;
    font-family: 'Roboto', sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    text-align: center;
  }
  
  .container {
    padding: 20px;
    max-width: 600px;
    width: 90%;
  }
  
  .logo {
    width: 150px;
    max-width: 100%;
    margin-bottom: 20px;
    border-radius: 12px;
    box-shadow: 0 0 10px rgba(255, 0, 0, 0.5);
  }
  
  h1 {
    font-size: 2rem;
    margin-bottom: 10px;
    color: #ff3b3f;
  }
  
  p {
    font-size: 1.1rem;
    margin-bottom: 30px;
    color: #dddddd;
  }
  
  .button {
    display: inline-block;
    padding: 12px 24px;
    background-color: #1877f2;
    color: white;
    text-decoration: none;
    border-radius: 8px;
    font-weight: bold;
    transition: background 0.3s;
  }
  
  .button:hover {
    background-color: #145dbf;
  }
  
  footer {
    margin-top: 40px;
    font-size: 0.9rem;
    color: #888;
  }
  
  /* Responsive - pantallas pequeñas */
  @media (max-width: 480px) {
    h1 {
      font-size: 1.7rem;
    }
  
    p {
      font-size: 1rem;
    }
  
    .button {
      padding: 10px 18px;
      font-size: 0.95rem;
    }
  
    .logo {
      width: 120px;
    }
  }
  
  /* Responsive - pantallas grandes */
  @media (min-width: 768px) {
    h1 {
      font-size: 3rem;
    }
  
    p {
      font-size: 1.5rem;
    }
  
    .button {
      font-size: 1.1rem;
      padding: 14px 28px;
    }
  
    footer {
      font-size: 1rem;
    }
  }