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

Primary style

-------------------------------- */
*, *::after, *::before {
  box-sizing: border-box;
}


body {
  background-color: #ffffff;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}


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

Shared style

-------------------------------- */
.cd-btn {
  display: inline-block;
  font-weight: 700;
  text-transform: uppercase;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
  -webkit-transition: box-shadow .3s;
  transition: box-shadow .3s;
}
.cd-btn:hover {
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
}

/* Main Content */
.cd-main-content {
  position: relative;
  z-index: 1;
  width: 100%;
  height: 100vh;
  /* vertically align its content */
  display: table;
}
.cd-main-content .center {
  /* vertically align inside parent element */
  display: table-cell;
  vertical-align: middle;
  text-align: center;
}

/* Modal Window */
.cd-modal {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 3;
  height: 100%;
  width: 100%;
  overflow: hidden;
  opacity: 0;
  visibility: hidden;
  -webkit-transition: opacity .3s 0s, visibility 0s .3s;
  transition: opacity .3s 0s, visibility 0s .3s;
}
.cd-modal .modal-content {
  height: 100%;
  overflow-y: auto;
  padding: 3em 5%;
}
.cd-modal h1, .cd-modal h2 {
  text-align: center;
}
.cd-modal p {
  line-height: 1.6;
  margin: 2em auto;
  max-width: 800px;
}
.cd-modal .modal-close {
  /* 'X' icon */
  position: absolute;
  z-index: 1;
  top: 20px;
  right: 5%;
  height: 45px;
  width: 45px;
  border-radius: 50%;
  overflow: hidden;
  white-space: nowrap;
  text-indent: 100%;
  color: transparent;
  visibility: hidden;
  opacity: 0;
  -webkit-transform: scale(0);
          transform: scale(0);
  -webkit-transition: visibility 0s .3s, opacity .3s 0s, -webkit-transform .3s 0s;
  transition: visibility 0s .3s, opacity .3s 0s, -webkit-transform .3s 0s;
  transition: transform .3s 0s, visibility 0s .3s, opacity .3s 0s;
  transition: transform .3s 0s, visibility 0s .3s, opacity .3s 0s, -webkit-transform .3s 0s;
}
.cd-modal .modal-close::before, .cd-modal .modal-close::after {
  content: '';
  display: inline-block;
  position: absolute;
  height: 2px;
  width: 20px;
  top: calc(50% - 1px);
  left: calc(50% - 10px);
}
.cd-modal .modal-close::before {
  -webkit-transform: rotate(45deg);
          transform: rotate(45deg);
}
.cd-modal .modal-close::after {
  -webkit-transform: rotate(-45deg);
          transform: rotate(-45deg);
}
.cd-modal.visible {
  opacity: 1;
  visibility: visible;
  -webkit-transition: opacity .7s, visibility 0s;
  transition: opacity .7s, visibility 0s;
}
.cd-modal.visible .modal-content {
  /* this fixes the buggy scrolling on webkit browsers - mobile devices only - when overflow property is applied */
  -webkit-overflow-scrolling: touch;
}
.cd-modal.visible .modal-close {
  visibility: visible;
  opacity: 1;
  -webkit-transition: visibility 0s 0s, opacity .3s 0s, -webkit-transform .3s 0s;
  transition: visibility 0s 0s, opacity .3s 0s, -webkit-transform .3s 0s;
  transition: transform .3s 0s, visibility 0s 0s, opacity .3s 0s;
  transition: transform .3s 0s, visibility 0s 0s, opacity .3s 0s, -webkit-transform .3s 0s;
  -webkit-transform: scale(1);
          transform: scale(1);
}
@media only screen and (min-width: 1100px) {
  .cd-modal .modal-content {
    padding: 6em 5%;
  }
  .cd-modal .modal-close {
    height: 60px;
    width: 60px;
  }
  .cd-modal .modal-close::before, .cd-modal .modal-close::after {
    height: 2px;
    width: 26px;
    top: calc(50% - 1px);
    left: calc(50% - 13px);
  }
  .cd-modal p {
    font-size: 2rem;
  }
}

/* Transition Layer */
.cd-transition-layer {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 2;
  height: 100%;
  width: 100%;
  opacity: 0;
  visibility: hidden;
  overflow: hidden;
}
.cd-transition-layer .bg-layer {
  position: absolute;
  left: 50%;
  top: 50%;
  -webkit-transform: translateY(-50%) translateX(-2%);
          transform: translateY(-50%) translateX(-2%);
  /* its dimentions will be overwritten using jQuery to proportionally fit the viewport */
  height: 100%;
  background-size: 100% 100%;
  background-repeat: no-repeat;
  background-position: 0 0;
}
.cd-transition-layer.visible {
  opacity: 1;
  visibility: visible;
}
.cd-transition-layer.visible .bg-layer {
  -webkit-transform: translateY(-50%) translateX(-98%);
          transform: translateY(-50%) translateX(-98%);
}
.cd-transition-layer.opening .bg-layer, .cd-transition-layer.closing .bg-layer {
  -webkit-animation-duration: .8s;
          animation-duration: .8s;
  -webkit-animation-fill-mode: forwards;
          animation-fill-mode: forwards;
}
.no-cssanimations .cd-transition-layer {
  display: none;
}

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

Scrub Effect

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

.scrub-transition h1, .scrub-transition h2 {
  font-family: "Sigmar One", serif;
  margin-bottom: .1em;
  font-size: 2rem;
}
.scrub-transition .cd-btn {
  background: #0764A9;
  color: #ffffff;
  border-radius: 50em;
}
.scrub-transition .cd-main-content {
  background: #ffbc59;
}
.scrub-transition .cd-modal {
  background: #0764A9;
}
.scrub-transition .cd-modal .modal-content {
  color: #000;
}
.scrub-transition .cd-modal .modal-close::before,
.scrub-transition .cd-modal .modal-close::after {
  background: #ffffff;
}
.scrub-transition .cd-modal .modal-close {
  background: #0764A9;
}
.scrub-transition .cd-modal .modal-close:hover {
  background: #452945;
}
.scrub-transition .cd-transition-layer .bg-layer {
  /* sprite composed of 25 frames */
  width: 2500%;
  background-image: url('http://nrra.net/sweep/wp-content/themes/KnowHow_Child/assets/img/scrub_full.png');
}
.scrub-transition .cd-transition-layer.opening .bg-layer {
  -webkit-animation: cd-sequence 0.8s steps(24) forwards;
          animation: cd-sequence 0.8s steps(24) forwards;
}
.scrub-transition .cd-transition-layer.closing .bg-layer {
  -webkit-animation: cd-sequence 0.8s steps(24) forwards reverse;
          animation: cd-sequence 0.8s steps(24) forwards reverse;
}

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

Animations

-------------------------------- */
@-webkit-keyframes cd-sequence {
  0% {
    /* translateX(-2%) is used to horizontally center the first frame inside the viewport */
    -webkit-transform: translateY(-50%) translateX(-2%);
            transform: translateY(-50%) translateX(-2%);
  }
  100% {
    /* translateX(-98%) (2% + 96) is used to horizontally center the last frame inside the viewport  */
    -webkit-transform: translateY(-50%) translateX(-98%);
            transform: translateY(-50%) translateX(-98%);
  }
}
@keyframes cd-sequence {
  0% {
    /* translateX(-2%) is used to horizontally center the first frame inside the viewport */
    -webkit-transform: translateY(-50%) translateX(-2%);
            transform: translateY(-50%) translateX(-2%);
  }
  100% {
    /* translateX(-98%) (2% + 96) is used to horizontally center the last frame inside the viewport  */
    -webkit-transform: translateY(-50%) translateX(-98%);
            transform: translateY(-50%) translateX(-98%);
  }
}
@-webkit-keyframes cd-sequence-2 {
  0% {
    -webkit-transform: translateY(-50%) translateX(-1.3158%);
            transform: translateY(-50%) translateX(-1.3158%);
  }
  100% {
    -webkit-transform: translateY(-50%) translateX(-98.6842%);
            transform: translateY(-50%) translateX(-98.6842%);
  }
}
@keyframes cd-sequence-2 {
  0% {
    -webkit-transform: translateY(-50%) translateX(-1.3158%);
            transform: translateY(-50%) translateX(-1.3158%);
  }
  100% {
    -webkit-transform: translateY(-50%) translateX(-98.6842%);
            transform: translateY(-50%) translateX(-98.6842%);
  }
}
@-webkit-keyframes cd-sequence-3 {
  0% {
    -webkit-transform: translateY(-50%) translateX(-2.5%);
            transform: translateY(-50%) translateX(-2.5%);
  }
  100% {
    -webkit-transform: translateY(-50%) translateX(-97.5%);
            transform: translateY(-50%) translateX(-97.5%);
  }
}
@keyframes cd-sequence-3 {
  0% {
    -webkit-transform: translateY(-50%) translateX(-2.5%);
            transform: translateY(-50%) translateX(-2.5%);
  }
  100% {
    -webkit-transform: translateY(-50%) translateX(-97.5%);
            transform: translateY(-50%) translateX(-97.5%);
  }
}