body {
  margin: 0;
  overflow: hidden;
}

.arjs-loader {
  height: 100%;
  width: 100%;
  position: absolute;
  top: 0;
  left: 0;
  background-color: rgba(0, 0, 0, 0.8);
  z-index: 9999;
  display: flex;
  justify-content: center;
  align-items: center;
}

.arjs-loader div {
  text-align: center;
  font-size: 1.25em;
  color: white;
}

  .barra-botones {
    position: fixed;
    top: 10px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(255, 255, 255, 0.9);
    padding: 10px 20px;
    border-radius: 10px;
    z-index: 9999;
    display: flex;
    gap: 10px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.2);
  }

  .barra-botones button {
    padding: 8px 12px;
    font-size: 14px;
    border: none;
    background-color: #3366cc;
    color: white;
    border-radius: 5px;
    cursor: pointer;
  }

  .barra-botones button:hover {
    background-color: #254a99;
  }