#bas-alan {
  height: 800px;
  overflow: hidden;
  position: relative;
}

.layer {
  background-position: bottom center;
  background-size: auto;
  background-repeat: no-repeat;
  width: 100%;
  height: 800px;
  position: fixed;
  z-index: -1;
}

#bas-alan-mobile {
  display: none;
  background: url("img/mobil-tamami.png") no-repeat center bottom/cover;
  height: 320px;
}

#bas-alan,
.layer {
  min-height: 800px;
  max-width: 1900px;
  margin: 0 auto;
  overflow: hidden;
}

.layer-bg {
  background-image: url("img/en-arka.jpg");
}

.layer-1 {
  background-image: url("img/soldan1.png");
  background-position: left bottom;
}

.layer-2 {
  background-image: url("img/alttan2.png");
}

.layer-3 {
  background-image: url("img/sag-sabit.png");
  background-position: right bottom;
}

.layer-4 {
  background-image: url("img/alttan3.png");
}

.layer-overlay {
  background-image: url("img/ust-perde.png");
}

@media only screen and (max-width: 768px) {
  #bas-alan {
    display: block;
    min-height: 0;
    height: 54px;
  }

  .layer {
    display: none;
  }

  #bas-alan-mobile {
    display: block;
  }
  #bas-alan-mobile .mobil-kurye {
  display: flex;
  align-items: center;
  justify-content: end;
  float: right;
  }


  #mobil-yok {
    display: none;
  }

}