* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Arial, sans-serif;
}

/* iframe responsivo */
#siteFrame {
  width: 100%;
  height: 100vh;
  border: none;
}

/* overlay */
#overlay {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 9999;
  max-width: 90%;
}

/* conteúdo */
.overlay-content {
  background: rgba(0,0,0,0.85);
  color: #fff;
  padding: 10px 15px;
  border-radius: 10px;
  font-size: 14px;
  position: relative;
}

/* botão fechar */
#closeOverlay {
  position: absolute;
  top: 4px;
  right: 8px;
  cursor: pointer;
}

/* MOBILE */
@media (max-width: 600px) {
  .overlay-content {
    font-size: 12px;
    padding: 8px 10px;
  }

  #overlay {
    top: 5px;
    left: 5px;
  }
}