.flip-book, .page, .page-content, .page-image {
    width: 100%;
    height: 100%;
  }
  .flip-book {
    height: 300px;
    position: relative;
    margin: 0 auto;
  }
  .page-image {
    background-size: cover;
    background-position: center;
  }

  .page.centered-page {
    left: 50% !important;
    transform: translateX(-50%) !important;
  }
 
  .ui-flipbook {
    transform: none !important;
  }

  .ui-flipbook[data-dbl-zoomed="true"] .stf__wrapper{
    cursor: zoom-out !important; 
  }

  .ui-flipbook[data-dbl-zoomed="false"] .stf__wrapper {
    cursor: zoom-in !important;
  }

  /*------------------------------------------------- controll buttons ------------------------------------------------ */
  .pdf_book_scroll {
    position: relative;
    height: 100%;
    max-height: 100%;
    overflow: hidden;
}

.turn_js .pdf_site {
    background-position: 50% 50%;
    background-size: auto 100%;
    background-repeat: no-repeat;
    background-color: white;
}

.controls{
    margin-top: 5vh;
    position: relative;
}
.controls_fullscreen {
    position: absolute;
    bottom: 5px;
    width: 90%;
    left: 5%;
    z-index: 100;
}
.controls_fullscreen .bt-options{
    background: #ffffff8f;
    width: fit-content;
    padding: 1vw;
    border-radius: 5px;
    box-shadow: 0px 0px 3px 0px black;
}
.pdf_control_none {
    display: none !important;
}

.bt-options a {
    cursor: pointer;
}

.move_bt_active,
.bi-fullscreen-exit {
    color: red !important;
}

.move_over {
    cursor: move;
    border: 2px dotted black;
}

.move_over .stf__wrapper {
      cursor: move !important;
}

.slider {
    background-color: white;
    border-radius: 20px;
    width: 50%;
    margin: 10px auto;
    display: block;
    text-align: center;
    padding-top: 5px;
    padding-bottom: 5px;
}

.pdf_book_container {
    position: relative;
    width: 100%;
    display: block;
}

.pdf_book_wrapper {
   /* width: fit-content; */
    margin: 0 auto;
}

.bt-options {
    margin: 10px auto;
    display: block;
    text-align: center;
    padding-top: 5px;
    padding-bottom: 5px;
}

.reflection_wrapper{
    visibility: hidden;
}
.reflection {
    width: 100%;
    height: 8vh;
    opacity: 0.45;
    background-repeat: no-repeat;
    background-size: cover;
    margin: 0;
    padding: 0;
    box-shadow: inset 0 -10px 10px 0px white;
    -webkit-box-shadow: inset 0 -10px 10px 0px white;
    -moz-box-shadow: inset 0 -10px 10px 0px white;
    -ms-box-shadow: inset 0 -10px 10px 0px white;
    -o-box-shadow: inset 0 -10px 10px 0px white;
}
.reflection_left, .reflection_right{
width:50%;
display:inline-block;
}

button.prev_inside {
  position: absolute;
    top: 45%;
    left: 0%;
    opacity: 0.1;
    z-index: 101;
    font-size: 3em !important;
    border: none;
}

button.next_inside {
 position: absolute;
    top: 45%;
    right: 0%;
    opacity: 0.1;
    z-index: 101;
    font-size: 3em !important;
    border: none;
}

.next_inside:hover, .prev_inside:hover{
    cursor:pointer;
}

.bt-options{
    font-size: 2em;
}
button.btn.btn-lg {
    padding: 2px;
    font-size: 1em;
}
button.btn.btn-lg:focus {
    border: 1px solid gray;
}



.sound_on:before {
    font-family: "bootstrap-icons";
    content: "\F610";
    font-style: normal;
    font-weight: normal;
    speak: never;
    display: inline-block;
    text-decoration: inherit;
  }

  
.sound_off:before {
    font-family: "bootstrap-icons";
    content: "\F60C";
    font-style: normal;
    font-weight: normal;
    speak: never;
    display: inline-block;
    text-decoration: inherit;
  }

  .fullscreen-enabled{
    overflow:visible !important;
  }

  /* Linke Seite mit Schatten zur Mitte */
.--left::after {
  content: "";
  position: absolute;
  right: 0;
  top: 0;
  width: 30px;
  height: 100%;
  background: linear-gradient(to left, rgba(0,0,0,0.1), transparent);
  pointer-events: none;
  z-index: 2;
}

/* Rechte Seite mit Schatten zur Mitte */
.--right::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 30px;
  height: 100%;
  background: linear-gradient(to right, rgba(0,0,0,0.1), transparent);
  pointer-events: none;
  z-index: 2;
}

 .pdf_book_fullscreen.pseudo-fullscreen {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: 9999;
  background: #000; /* Optional: dunkler Hintergrund */
  overflow: hidden;
}
body.pseudo-fullscreen-active {
  overflow: hidden;
}