#loadingInstructionsSection{
  display: none;
  height: 100vh;
  justify-content: center;
  align-items: center;
}

/* Reset and set basic properties for body and html */
body, html {
  margin: 0;
  padding: 0;
  overflow: hidden;  /* Ensure no scrollbars appear */
  height: 100%;      /* Make sure these elements take the full height */
  position: relative; /* To act as a positioning context for absolute positioned children */
  user-select: none;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
}

#faceContainer {
  position: fixed;  /* Fixes the position relative to the viewport */
  top: 0;
  left: 0;
  width: 100vw;     /* Full viewport width */
  height: 100vh;    /* Full viewport height */
  background-size: cover;     /* Ensures the image scales and covers the entire container */
  background-position: center; /* Centers the image */
  background-repeat: no-repeat; /* Ensures the image doesn't repeat */
  cursor: none;
}


#finalInstructionsSection{
  display: none;
  height: 100vh;
  justify-content: center;
  align-items: center;
}

#tracker {
  position: absolute;
  width: 20px;
  height: 20px;
  background: red;
  border-radius: 50%;
  pointer-events: none;
}

#calibrationButton {
  width: 10px;
  height: 10px;
  position: absolute;
  background: rgb(23, 147, 70);
}

.modal {
  display: none;
  position: fixed;
  z-index: 1;
  padding-top: 100px;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  overflow: auto;
  background-color: rgba(0,0,0,0.4);
}

.modal-content {
  background-color: #fefefe;
  margin: auto;
  padding: 20px;
  border: 1px solid #888;
  width: 80%;
}

.close {
  color: #aaaaaa;
  float: right;
  font-size: 28px;
  font-weight: bold;
}

.close:hover,
.close:focus {
  color: #000;
  text-decoration: none;
  cursor: pointer;
}