/* Loading-overlay styles */

@font-face {
  font-family: "demo";
  src: url('fonts/icons.woff') format("woff"), url('fonts/icons.ttf') format("truetype");
}

@-moz-keyframes loadingStart {
  0% {
    opacity: 0;
  }
  100% {
    opacity: 1;
  }
}
@-webkit-keyframes loadingStart {
  0% {
    opacity: 0;
  }
  100% {
    opacity: 1;
  }
}
@-o-keyframes loadingStart {
  0% {
    opacity: 0;
  }
  100% {
    opacity: 1;
  }
}
@keyframes loadingStart {
  0% {
    opacity: 0;
  }
  100% {
    opacity: 1;
  }
}
@-moz-keyframes loading {
  0% {
    -moz-transform: rotate(0deg);
    transform: rotate(0deg);
  }
  50% {
    -moz-transform: rotate(180deg);
    transform: rotate(180deg);
  }
  100% {
    -moz-transform: rotate(360deg);
    transform: rotate(360deg);
  }
}
@-webkit-keyframes loading {
  0% {
    -webkit-transform: rotate(0deg);
    transform: rotate(0deg);
  }
  50% {
    -webkit-transform: rotate(180deg);
    transform: rotate(180deg);
  }
  100% {
    -webkit-transform: rotate(360deg);
    transform: rotate(360deg);
  }
}
@-o-keyframes loading {
  0% {
    -o-transform: rotate(0deg);
    transform: rotate(0deg);
  }
  50% {
    -o-transform: rotate(180deg);
    transform: rotate(180deg);
  }
  100% {
    -o-transform: rotate(360deg);
    transform: rotate(360deg);
  }
}
@keyframes loading {
  0% {
    transform: rotate(0deg);
  }
  50% {
    transform: rotate(180deg);
  }
  100% {
    transform: rotate(360deg);
  }
}

.loading {
  position: relative;
  pointer-events: none;
}

#css-input:checked ~ .loading .loading-overlay {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  right: 0;
  -webkit-animation: loadingStart 3s 300ms linear 1 both;
  -moz-animation: loadingStart 3s 300ms linear 1 both;
  -o-animation: loadingStart 3s 300ms linear 1 both;
  animation: loadingStart 3s 300ms linear 1 both;
  background: rgba(255, 255, 255, 0.5);
  text-align: center;
}
#css-input:checked ~ .loading .loading-text {
  font-size: 0.875rem;
  line-height: 1.3125rem;
  text-shadow: white 0 0 1em, white 0 0 0.5em, white 0 0 0.25em;
  position: relative;
  display: block;
  text-transform: uppercase;
  font-weight: bold;
}
#css-input:checked ~ .loading .loading-text:after {
  content: "...";
}
#css-input:checked ~ .loading .loading-spinner {
  position: absolute;
  top: 50%;
  bottom: 0;
  left: 0;
  right: 0;
  margin: -3.9375rem auto 0;
  color: #1a1d1d;
  text-align: center;
}
#css-input:checked ~ .loading .loading-icon {
  font-size: 4.8125rem;
  line-height: 5.25rem;
  text-shadow: rgba(255, 255, 255, 0.75) 0 0 0.5em;
  -webkit-animation: loading 1s steps(4) infinite;
  -moz-animation: loading 1s steps(4) infinite;
  -o-animation: loading 1s steps(4) infinite;
  animation: loading 1s steps(4) infinite;
  display: block;
  vertical-align: middle;
}
#css-input:checked ~ .loading .loading-icon:before {
  vertical-align: middle;
  content: "\e000";
  font-family: "demo";
}

/* Demo page styles */

* {
  box-sizing: border-box;
}

html {
  font-family: "Franklin Gothic Medium", "Franklin Gothic", "ITC Franklin Gothic", Arial, sans-serif;
}

.demo {
  min-width: 34em;
  max-width: 52em;
  margin: 1em auto;
  padding: 1em;
}

.demo-content {
  text-align: right;
}

#target {
  clear: both;
  width: 100%;
  height: 2em;
  margin-bottom: 1em;
  padding: 0 0 55% 1em;
  border: 2px solid black;
  text-align: left;
}

#css-input:checked ~ #target {
  background: url('http://placekitten.com/g/800/600') no-repeat;
  background-size: cover;
}

.toggle-loading {
  float: left;
  margin-bottom: 1em;
  padding: 1em 2em;
  border: none;
  border-radius: .25em;
  background: pink;
  font: inherit;
  font-size: 1.25em;
  text-transform: uppercase;
  color: white;
  text-shadow: 0 1px 0 rgba(0, 0, 0, 0.5);
  transition: all 150ms;
}

.toggle-loading:focus {
  outline: none;
  box-shadow: 0 0 1px 2px rgba(0, 0, 0, 0.1) inset;
}

.toggle-loading:hover {
  cursor: pointer;
  background: #fd9297;
}

.toggle-loading:active {
  background: #bc6d71;
  box-shadow: 0 0 1px 2px rgba(0, 0, 0, 0.25) inset;
}

label[for="css-input"] {
  display: inline-block;
  padding-top: 3em;
}

pre {
  overflow: auto;
  font-family: "Courier New", Courier, "Lucida Sans Typewriter", "Lucida Typewriter", monospace, serif;
  font-size: .85em;
  line-height: 1.5em;
  color: grey;
}

.code-samples .js {
  float: left;
  width: 50%;
  padding-right: 1em;
  margin-bottom: 1em;
}

.code-samples .html {
  float: right;
  width: 50%;
  padding-left: 1em;
  border-left: 1px dashed;
  border-color: grey;
  margin-bottom: 1em;
}

.code-samples .css {
  clear: both;
  border-top: 1px dashed;
  border-color: grey;
}