/* Fondo oscuro */
    .popup-overlay {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background-color: rgba(0,0,0,0.6);
      display: none;
      justify-content: center;
      align-items: center;
      z-index: 999;
    }

    /* Contenedor del popup */
    .popup-content {
      background-color: #fff;
      border-radius: 10px;
      padding: 20px;
      max-width: 400px;
      text-align: center;
      position: relative;
      box-shadow: 0 5px 15px rgba(0,0,0,0.3);
    }

    .popup-content img {
      max-width: 100%;
      height: auto;
      border-radius: 8px;
    }

    .popup-content h2 {
      font-size: 22px;
      margin: 15px 0;
    }

    .popup-content button {
      background-color: #28a745;
      color: white;
      padding: 12px 25px;
      border: none;
      border-radius: 5px;
      font-size: 16px;
      cursor: pointer;
      margin-top: 10px;
    }

    .popup-content button:hover {
      background-color: #218838;
    }

    /* Botón cerrar */
    .close-btn {
      position: absolute;
      top: 10px;
      right: 15px;
      font-size: 20px;
      cursor: pointer;
      color: #999;
    }

    .close-btn:hover {
      color: #333;
    }