/* -------------------------------- 

Images block

-------------------------------- */
.nt-image-block {
  position: relative;
}
.nt-image-block::before {
  /* this is the layer used to cover the .nt-image-block when the content block becomes visible - mobile only */
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  width: 100%;
  background-color: rgba(52, 54, 66, 0.6);
  opacity: 0;
  visibility: hidden;
  -webkit-transition: opacity 0.3s 0s, visibility 0s 0.3s;
  -moz-transition: opacity 0.3s 0s, visibility 0s 0.3s;
  transition: opacity 0.3s 0s, visibility 0s 0.3s;
}
.nt-image-block.content-block-is-visible::before {
  opacity: 1;
  visibility: visible;
  -webkit-transition: opacity 0.3s 0s, visibility 0s 0s;
  -moz-transition: opacity 0.3s 0s, visibility 0s 0s;
  transition: opacity 0.3s 0s, visibility 0s 0s;
}
@media only screen and (min-width: 768px) {
  .nt-image-block::before {
    display: none;
  }
}

.nt-images-list::before {
  /* never visible - this is used in jQuery to check the current MQ */
  content: 'mobile';
  display: none;
}
.nt-images-list > li {
  height: 250px;
  background-size: cover;
  background-repeat: no-repeat;
  background-position: center;
  list-style: none;
}

.nt-images-list > li > a {
  /* used to vertically align the h2 child -  mobile version only */
  display: table;
  height: 100%;
  width: 100%;
}
.nt-images-list h2 {
  /* used to vertically align h2 -  mobile version only */
  display: table-cell;
  vertical-align: middle;
  text-align: center;
  font-size: 3rem;
  color: #ffffff;
  font-weight: 700;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
@media only screen and (min-width: 768px) {
  .nt-images-list::before {
    /* never visible - this is used in jQuery to check the current MQ */
    content: 'desktop';
  }
  .nt-images-list > li > a {
    display: block;
    padding: 4em 3em;
    cursor: default;
    pointer-events: none;
  }
  .nt-images-list h2 {
    font-size: 5.5rem;
    text-align: left;
  }
}

/* -------------------------------- 

Content block

-------------------------------- */
.nt-content-block {
  /* move the block outside the viewport (to the right) - mobile only */
  position: fixed;
  z-index: 1;
  top: 0;
  left: 0;
  height: 100%;
  -webkit-transform: translateX(100%);
  -moz-transform: translateX(100%);
  -ms-transform: translateX(100%);
  -o-transform: translateX(100%);
  transform: translateX(100%);
  -webkit-transition: -webkit-transform 0.3s;
  -moz-transition: -moz-transform 0.3s;
  transition: transform 0.3s;
}
.nt-content-block.is-visible {
  -webkit-transform: translateX(0);
  -moz-transform: translateX(0);
  -ms-transform: translateX(0);
  -o-transform: translateX(0);
  transform: translateX(0);
}
.nt-content-block > ul {
  height: 100%;
}
.nt-content-block > ul > li {
  position: absolute;
  height: 100%;
  padding: 2em;
  overflow-y: auto;
  background-color: #ffffff;
  opacity: 0;
  visibility: hidden;
}
.nt-content-block > ul > li.is-selected {
  /* this is the selected content */
  position: relative;
  opacity: 1;
  visibility: visible;
  -webkit-overflow-scrolling: touch;
}
.nt-content-block h2 {
  line-height: 1.2;
  font-weight: 700;
  font-size: 2.3rem;
  margin-bottom: 1em;
}
.nt-content-block p {
  margin-bottom: 2em;
  line-height: 1.6;
  color: #85868d;
}
.nt-content-block .nt-close {
  /* 'X' icon to close the content block -  mobile only */
  position: fixed;
  top: 0;
  right: 0;
  height: 44px;
  width: 44px;
  /* image replacement */
  overflow: hidden;
  text-indent: 100%;
  white-space: nowrap;
  color: transparent;
  -webkit-transform: scale(0);
  -moz-transform: scale(0);
  -ms-transform: scale(0);
  -o-transform: scale(0);
  transform: scale(0);
  -webkit-transition: -webkit-transform 0.2s;
  -moz-transition: -moz-transform 0.2s;
  transition: transform 0.2s;
}
.nt-content-block .nt-close::after, .nt-content-block .nt-close::before {
  /* these are the 2 lines of the 'X' icon */
  content: '';
  position: absolute;
  left: 50%;
  top: 50%;
  width: 2px;
  height: 24px;
  background-color: #343642;
  /* Force Hardware Acceleration */
  -webkit-backface-visibility: hidden;
  backface-visibility: hidden;
  -webkit-transform: translateZ(0);
  -moz-transform: translateZ(0);
  -ms-transform: translateZ(0);
  -o-transform: translateZ(0);
  transform: translateZ(0);
}
.nt-content-block .nt-close::after {
  -webkit-transform: translateX(-50%) translateY(-50%) rotate(45deg);
  -moz-transform: translateX(-50%) translateY(-50%) rotate(45deg);
  -ms-transform: translateX(-50%) translateY(-50%) rotate(45deg);
  -o-transform: translateX(-50%) translateY(-50%) rotate(45deg);
  transform: translateX(-50%) translateY(-50%) rotate(45deg);
}
.nt-content-block .nt-close::before {
  -webkit-transform: translateX(-50%) translateY(-50%) rotate(-45deg);
  -moz-transform: translateX(-50%) translateY(-50%) rotate(-45deg);
  -ms-transform: translateX(-50%) translateY(-50%) rotate(-45deg);
  -o-transform: translateX(-50%) translateY(-50%) rotate(-45deg);
  transform: translateX(-50%) translateY(-50%) rotate(-45deg);
}
.nt-content-block .nt-close.is-scaled-up {
  -webkit-transform: scale(1);
  -moz-transform: scale(1);
  -ms-transform: scale(1);
  -o-transform: scale(1);
  transform: scale(1);
}
.no-touch .nt-content-block .nt-close.is-scaled-up:hover {
  -webkit-transform: scale(1.2);
  -moz-transform: scale(1.2);
  -ms-transform: scale(1.2);
  -o-transform: scale(1.2);
  transform: scale(1.2);
}
@media only screen and (min-width: 768px) {
  .nt-content-block {
    /* reset style */
    position: static;
    -webkit-transform: translateX(0);
    -moz-transform: translateX(0);
    -ms-transform: translateX(0);
    -o-transform: translateX(0);
    transform: translateX(0);
  }
  .nt-content-block > ul > li {
    /* reset style */
    opacity: 1;
    visibility: visible;
    padding: 4em 3em;
  }
  .nt-content-block > ul > li.overflow-hidden {
    /* this class is used during the animation (slider change) to hide the scrolling bar */
    overflow: hidden;
  }
  .nt-content-block h2 {
    font-size: 3rem;
  }
  .nt-content-block .nt-close {
    display: none;
  }
}

/* ---------------------------------------------- 

Desktop slider - both image and content blocks

---------------------------------------------- */
@media only screen and (min-width: 768px) {
  .nt-image-block,
  .nt-content-block {
    /* slider style - desktop version only */
    width: 50%;
    float: left;
    height: 100vh;
    overflow: hidden;
  }
  .nt-image-block > ul,
  .nt-content-block > ul {
    position: relative;
    height: 100%;
  }
  .nt-image-block > ul > li,
  .nt-content-block > ul > li {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    width: 100%;
    /* Force Hardware Acceleration */
    -webkit-transform: translateZ(0);
    -moz-transform: translateZ(0);
    -ms-transform: translateZ(0);
    -o-transform: translateZ(0);
    transform: translateZ(0);
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden;
    will-change: transform;
    /* by default, the items are moved to the right - relative to their parent elements */
    -webkit-transform: translateX(100%);
    -moz-transform: translateX(100%);
    -ms-transform: translateX(100%);
    -o-transform: translateX(100%);
    transform: translateX(100%);
    -webkit-transition: -webkit-transform 0.5s;
    -moz-transition: -moz-transform 0.5s;
    transition: transform 0.5s;
  }
  .nt-image-block > ul > li.is-selected,
  .nt-content-block > ul > li.is-selected {
    /* this is the visible item */
    position: absolute;
    -webkit-transform: translateX(0);
    -moz-transform: translateX(0);
    -ms-transform: translateX(0);
    -o-transform: translateX(0);
    transform: translateX(0);
  }
  .nt-image-block > ul > li.move-left,
  .nt-content-block > ul > li.move-left {
    /* this is the item hidden on the left */
    -webkit-transform: translateX(-100%);
    -moz-transform: translateX(-100%);
    -ms-transform: translateX(-100%);
    -o-transform: translateX(-100%);
    transform: translateX(-100%);
  }
}
/* -------------------------------- 

Slider navigation

-------------------------------- */
.block-navigation {
  /* this is the slider navigation - desktop version only */
  display: none;
}
@media only screen and (min-width: 768px) {
.block-navigation {
    display: block;
    position: absolute;
    bottom: 0;
    left: 0;
    width: 50%;
    list-style: none;
    padding: 0;
}
  .block-navigation::after {
    clear: both;
    content: "";
    display: table;
  }
  .block-navigation li {
    width: 50%;
    height: 50px;
    line-height: 50px;
    text-align: center;
    background-color: rgba(0, 0, 0, 0.5);
    -webkit-transition: background 0.2s;
    -moz-transition: background 0.2s;
    transition: background 0.2s;
  }
  .block-navigation li:hover {
    background-color: rgba(0, 0, 0, 0.7);
  }
  .block-navigation li:first-of-type {
    float: left;
  }
  .block-navigation li:last-of-type {
    float: right;
  }
  .block-navigation .buttons {
    display: block;
    height: 100%;
    width: 100%;
    color: #ffffff;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
  }
  .block-navigation .buttons.inactive {
    opacity: .3;
    cursor: not-allowed;
  }
}

