/* Estilo do fundo */
  .popup-anuncio {
    display: none;
    position: fixed;
    z-index: 9999;
    inset: 0;
    background: rgba(0,0,0,0.6);
    justify-content: center;
    align-items: center;
  }

  /* Container do popup */
  .popup-conteudo {
    position: relative;
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 0 20px rgba(0,0,0,0.3);
    overflow: hidden;
    max-width: 90%;
    width: 600px;
    animation: fadeIn 0.4s ease;
  }

  /* Imagem do popup */
  .popup-conteudo img {
    width: 100%;
    height: auto;
    display: block;
  }

  /* Botão fechar */
  .popup-fechar {
    position: absolute;
    top: 8px;
    right: 12px;
    color: #fff;
    background: rgba(0,0,0,0.5);
    border-radius: 50%;
    width: 28px;
    height: 28px;
    line-height: 28px;
    text-align: center;
    font-size: 18px;
    cursor: pointer;
    transition: background 0.3s;
  }

  .popup-fechar:hover {
    background: rgba(0,0,0,0.8);
  }

  @keyframes fadeIn {
    from { opacity: 0; transform: scale(0.9); }
    to { opacity: 1; transform: scale(1); }
  }