body {
  font-family: 'Lora', 'Helvetica Neue', Helvetica, Arial, sans-serif;
  text-align: left;
}

#mainNav {
  font-family: 'Lora', 'Helvetica Neue', Helvetica, Arial, sans-serif;
  margin-bottom: 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.3);
  background-color: black;
}
#mainNav a {
  color: white;
}

#mainNav a:hover {
  color: #007fff;
}

#mainNav .navbar-nav .nav-item {
  -webkit-transition: background 0.3s ease-in-out;
  -moz-transition: background 0.3s ease-in-out;
  transition: background 0.3s ease-in-out;
}

#mainNav .navbar-nav .nav-item:hover {
  color: fade(white, 80%);
  outline: none;
  background-color: transparent;
}

#mainNav .navbar-nav .nav-item:active, #mainNav .navbar-nav .nav-item:focus {
  outline: none;
  background-color: transparent;
}

.masthead {
  display: table;
  width: 100%;
  height: 100vh;
  /*
  height: auto;
  */
  text-align: center;
  color: black;
  background: url("../images/extended_cover.jpg") no-repeat bottom center scroll;
  background-color: black;
  -webkit-background-size: cover;
  -moz-background-size: cover;
  -o-background-size: cover;
  background-size: cover;
  background-blend-mode: screen;
}

.masthead .intro-body {
  display: table-cell;
  vertical-align: middle;
}

.masthead .intro-body .brand-heading {
  font-size: 3rem;
  color: #FF5A60;
  font-weight: bold;
  /*-webkit-text-stroke: 1px black;*/
  text-shadow: 3px 2px #000000;
  padding-top: 18vh;
}

.masthead .intro-body .intro-text {
  color: #F27200;
  font-size: 1.25rem;
  font-weight: bold;
  /*text-shadow: 1px 1px #a8a8a8;*/
}

.article_author, .article_date {
  color: black;
  padding-bottom: 0;
  margin-bottom: 0;
  font-weight: bold;
  font-size: 1.25rem;
}

@media (min-width: 768px) {
  .masthead {
    height: 100vh;
    padding: 0;
    padding-top: 100px;
  }
  .masthead .intro-body .brand-heading {
    font-size: 3rem;
  }
  .masthead .intro-body .intro-text {
    font-size: 1.5rem;
  }
}

@media (max-width: 350px) {
  .masthead {
    height: 100vh;
    padding: 0;
    padding-top: 50px;
  }
  .masthead .intro-body .brand-heading {
    font-size: 1.5rem;
  }
  .masthead .intro-body .intro-text {
    font-size: 1rem;
  }
  .article_author, .article_date {
    color: black;
    padding-bottom: 0;
    margin-bottom: 0;
    font-weight: bold;
    font-size: 0.75rem;
  }
  .mainNav {
    font-size: 0.75rem;
  }

}

#introduction {
  padding-top: 100px;
}

.btn-circle {
  font-size: 26px;
  width: 45px;
  height: 45px;
  margin-top: 15px;
  line-height: 45px;
  -webkit-transition: background 0.3s ease-in-out;
  -moz-transition: background 0.3s ease-in-out;
  transition: background 0.3s ease-in-out;
  border: 2px solid #007fff;
  border-radius: 100% !important;
  background: transparent;
}

.btn-circle:focus, .btn-circle:hover {
  color: black;
  outline: none;
  background: rgba(255, 255, 255, 0.1);
  border: 2px solid #007fff;
}

.masthead a:focus, .masthead a:hover {
  color: black;
}

/*SCrolly*/
/* Custom */
@media (min-width: 576px) {
  #scrolly {
    position: relative;
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    background-color: #e4e4e4; 
    padding: 1rem;
  }

  #scrolly > * {
    -webkit-box-flex: 1;
    -ms-flex: 1;
    flex: 1;
  }


  article {
    position: relative;
    padding: 0 1rem;
    max-width: 30rem;
  }


  figure {
    position: -webkit-sticky;
    position: sticky;
    width: 100%;
    margin: 0;
    -webkit-transform: translate3d(0, 0, 0);
    -moz-transform: translate3d(0, 0, 0);
    transform: translate3d(0, 0, 0);
    background-color: white;

    -webkit-box-shadow: 3px 3px 5px 6px #aaa;  
    -moz-box-shadow:    3px 3px 5px 6px #aaa;  
    box-shadow:         3px 3px 5px 6px #aaa;
    border-radius: 8px;
    opacity: 0.9;
  }
}

@media (max-width: 576px) {

/*
  #scrolly {
    position: relative;
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    background-color: #e4e4e4; 
    padding: 1rem;
  }

  #scrolly > * {
    -webkit-box-flex: 1;
    -ms-flex: 1;
    flex: 1;
  }
  article {
    position: relative;
    padding: 0 1rem;
    max-width: 100%; 
  }
*/

  figure {
    position: -webkit-sticky;
    position: sticky;
    bottom: 0;
    width: 100%;
    -webkit-transform: translate3d(0, 0, 0);
    -moz-transform: translate3d(0, 0, 0);
    transform: translate3d(0, 0, 0);
    background-color: white;

    -webkit-box-shadow: 3px 3px 5px 6px #bbb;
    -moz-box-shadow:    3px 3px 5px 6px #bbb;
    box-shadow:         3px 3px 5px 6px #bbb;
    border-radius: 8px;
    opacity: 1;
    padding-bottom: 20px;
  }
}

figure:hover {
  -webkit-box-shadow: 3px 3px 5px 6px #666;  /* Safari 3-4, iOS 4.0.2 - 4.2, Android 2.3+ */
  -moz-box-shadow:    3px 3px 5px 6px #666;  /* Firefox 3.5 - 3.6 */
  box-shadow:         3px 3px 5px 6px #666;  /* Opera 10.5, IE 9, Firefox 4+, Chrome 6+, iOS 5 */
  opacity: 1;
}

/*
figure p {
  text-align: center;
  padding: 1rem;
  position: absolute;
  top: 50%;
  left: 50%;
  -moz-transform: translate(-50%, -50%);
  -webkit-transform: translate(-50%, -50%);
  transform: translate(-50%, -50%);
  font-size: 8rem;
  font-weight: 900;
  color: black;
}
*/

.step {
  margin: 0 auto 20rem auto;
  background-color: #e4e4e4; /*white; /*#3b3b3b;*/
  color: black; /*#fff;*/
  opacity: 0;
}

.step:last-child {
  margin-bottom: 0;
}

.step.is-active {
  background-color: #e4e4e4; /*white; /*goldenrod;*/
  color: black; /*#3b3b3b;*/
  opacity: 1;
}

.step p {
  text-align: justify;
  padding: 1rem;
  font-size: 1.15rem;
}


/* User defined */
.description {
  margin-top: 40px;
}

p {
  text-align: left;
  font-size: 1.1rem;
  padding-top: 20px;
}

.video-demo {
    display: block;
    max-width: 100%;
    width: 100%;
    height: auto;    
    margin: auto;
    padding-top: 20px;
    padding-bottom: 20px;
}

.graphic_container {
  padding-top: 20px;
}

.slider {
  padding-top: 20px;
}

.slider_text {
  font-size: 1.25rem;
  font-weight: bold;
}

.slider_div {
  padding-top: 20px;
  padding-bottom: 0;
}

.slider_tag {
  font-size: 1rem;
  padding-bottom: 10px;
}

.slider_value {
  font-size: 1rem;
  padding: 5px;
  background-color: #d6eaf8;
  -webkit-box-shadow: 3px 3px 5px 2px #ccc;  /* Safari 3-4, iOS 4.0.2 - 4.2, Android 2.3+ */
  -moz-box-shadow:    3px 3px 5px 2px #ccc;  /* Firefox 3.5 - 3.6 */
  box-shadow:         3px 3px 5px 2px #ccc;  /* Opera 10.5, IE 9, Firefox 4+, Chrome 6+, iOS 5 */
}

.power_slider_value {
  font-size: 1rem;
  padding: 5px;
  background-color: #d6eaf8;
  color: #ff0000;
  -webkit-box-shadow: 3px 3px 5px 2px #ccc;  /* Safari 3-4, iOS 4.0.2 - 4.2, Android 2.3+ */
  -moz-box-shadow:    3px 3px 5px 2px #ccc;  /* Firefox 3.5 - 3.6 */
  box-shadow:         3px 3px 5px 2px #ccc;  /* Opera 10.5, IE 9, Firefox 4+, Chrome 6+, iOS 5 */
}

.graphic_div {
  margin-top: 0;
  padding-top: 0;
  font-size: 0.80rem;
}

.power_graphic_div {
  margin-top: 20px;
  padding-top: 20px;
  font-size: 1.0rem;
  color: #0000ff;
  font-weight: bold;
}

#custom-handle {
    width: 3em;
    height: 1.6em;
    top: 50%;
    margin-top: -.8em;
    text-align: center;
    line-height: 1.6em;
    background-color: blue;
  }

.drag_image {
  display: block;
  max-width: 100%;
  height: 50px;
  margin: auto;
  padding: 5px;
}

.drag_position {
}

.drag_value {
}

sub { 
  vertical-align: sub;
  font-size: smaller;
}

.heading {
  /*font-family: 'Cabin', 'Helvetica Neue', Helvetica, Arial, sans-serif;*/
  font-family: 'Lora', 'Helvetica Neue', Helvetica, Arial, sans-serif;
  font-size: 1.25rem;
  text-align: center;
  margin-bottom: 0px;
}

h4 {
  /*font-family: 'Cabin', 'Helvetica Neue', Helvetica, Arial, sans-serif;*/
  font-family: 'Lora', 'Helvetica Neue', Helvetica, Arial, sans-serif;
  text-align: center;
  font-weight: bold;
}

h5 {
  text-align: left;
  font-weight: bold;
}

.footer {
  margin-top: 50px;
  padding-top: 30px;
  font-size: 0.9rem;
  background-color: black;
  color: white;
  text-align: center;
}

.footer p {
  text-align: center;
  font-size: 0.9rem;
}

.tooltip1 {   
  position: absolute;           
  text-align: center;           
  width: 260px;                  
  height: 50px;                 
  padding: 2px;             
  font: 12px sans-serif;        
  background: white;   
  border: 0px;      
  border-radius: 2px;           
  pointer-events: none;
  color: black;
  border-color: black;
  box-shadow: 3px 3px 3px 3px rgba(0,0,0,0.4);     
}

.focus circle {
  fill: #F1F3F3;
  stroke: #6F257F;
  stroke-width: 5px;
}
  
.hover-line {
  stroke: #6F257F;
  stroke-width: 2px;
  stroke-dasharray: 3,3;
}

.overlay {
  fill: none;
  pointer-events: all;
}

.tooltip_histogram {   
  position: absolute;           
  text-align: center;           
  width: 230px;                  
  height: 40px;                 
  font-size: 12px;
  font-family: 'Lora', 'Helvetica Neue', Helvetica, Arial, sans-serif;        
  background: white;   
  border: 2px;      
  border-radius: 2px;           
  pointer-events: none;
  color: black;
  border-color: black;
  box-shadow: 3px 3px 3px 3px rgba(0,0,0,0.4);
}

@media (max-width: 350px) {
  .step p {
    text-align: justify;
    font-size: 0.6rem;
  }


  /* User defined */
  .description {
    margin-top: 40px;
  }

  p {
    text-align: left;
    font-size: 0.8rem;
    padding-top: 20px;
  }

  h4 {
    /*font-family: 'Cabin', 'Helvetica Neue', Helvetica, Arial, sans-serif;*/
    font-family: 'Lora', 'Helvetica Neue', Helvetica, Arial, sans-serif;
    text-align: center;
    font-weight: bold;
    font-size: 1.25rem;
  }

  h5 {
    text-align: left;
    font-weight: bold;
    font-size: 1.25rem;
  }

  .slider_text, .slider_tag, .slider, .graphic_div, .slider_value, #graphic, .power_slider_value {
    font-size: 0.75rem;
  }

  figure {
    position: -webkit-sticky;
    position: sticky;
    top: 0;
    width: 100%;
    -webkit-transform: translate3d(0, 0, 0);
    -moz-transform: translate3d(0, 0, 0);
    transform: translate3d(0, 0, 0);
    background-color: white;

    -webkit-box-shadow: 3px 3px 5px 6px #bbb;
    -moz-box-shadow:    3px 3px 5px 6px #bbb;
    box-shadow:         3px 3px 5px 6px #bbb;
    border-radius: 8px;
    opacity: 1;
    padding-bottom: 20px;
  }

  .nav-link {
    font-size: 0.75rem;
  }

  ul {
    font-size: 0.5rem;
  }

  .step p {
    margin-bottom: 0px;
    margin-top: 0px;
    padding-top: 0px;
    padding-bottom: 10px;
  }

  .footer p {
    font-size: 0.75rem;
  }

}