:root {
  --header-bg: rgb(114, 78, 121);
}

body {
  margin: 0;
  width: 100%;
  min-height: 100vh;
  overflow-x: hidden;
  overflow-y: auto;
  display: flex;
  flex-direction: column-reverse;
  font-family: "Roboto";
}

#loading {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  height: 100vh;
  background: var(--header-bg);
  transition: height 0.5s, opacity 0.4s 0.5s;
  z-index: 1;
  opacity: 1;
}

.loaded #loading {
  height: calc(1.9 * 48px);
  opacity: 0;
}

header {
  height: 1.9em;
  line-height: 1.5em;
  box-sizing: content-box;
  padding-top: .3em;
  padding-bottom: .2em;
  text-align: center;
  color: white;
  background: var(--header-bg);
  margin-bottom: 0em;
  margin-top: calc(100vh - 1.9em + 0.5em);
  box-shadow: 0px -5px 32px -5px rgba(0, 0, 0, 0.5);
  font-family: "Niramit";
  font-size: 48px;
  transition: margin 0.75s 0.5s;
}

.loaded header {
  margin-top: 0.5em;
}

.A, .B, .C {
  padding-left: 4em;
  padding-right: 4em;
}

.A {
  background: rgb(147, 162, 168);
  margin-bottom: 5em;
  color: white;
  padding-top: 1.5em;
  padding-bottom: 1.5em;
  text-align: center;
  font-size: 24px;
}

.B {
  margin-top: 4em;
  background: rgb(238, 238, 238);
  padding-top: 1.5em;
  padding-bottom: 1.5em;
  text-align: justify;
  box-shadow: 0px -8px 8px -4px rgba(0, 0, 0, 0.2);
  font-size: 18px;
}

.C {
  margin-bottom: calc(75vh - 8em);
  margin-top: 4em;
  min-height: 8em;
  box-sizing: border-box;
  padding-top: 2em;
  padding-bottom: 2em;
  background: rgb(147, 162, 168);
  box-shadow: 0px -8px 16px -8px rgba(0, 0, 0, 0.3);
  font-size: 18px;
}

.D {
  display: flex;
  justify-content: center;
  margin-top: 6em;
  margin-bottom: 4em;
}

.arrow-holder {
  display: flex;
  justify-content: center;
  flex-direction: row;
  position: relative;
}

/* https://cssicon.space/ */
.arrow-up.icon {
  font-size: 3px;
  color: #000;
  position: relative;
  margin-left: 3em;
  margin-top: 3em;
  width: 1em;
  height: 16em;
  background-color: currentColor;
}

.arrow-up.icon:before {
  content: '';
  position: absolute;
  left: -5em;
  top: 1em;
  width: 10em;
  height: 10em;
  border-top: solid 1em currentColor;
  border-right: solid 1em currentColor;
  -webkit-transform: rotate(-45deg);
          transform: rotate(-45deg);
}


.wink.icon {
  font-size: 3px;
  color: #000;
  position: relative;
  margin-left: 2em;
  margin-top: 2em;
  width: 16em;
  height: 16em;
  border-radius: 50%;
  border: solid 1em currentColor;
}

.wink.icon:before {
  content: '';
  position: absolute;
  left: 3em;
  top: 3em;
  width: 2em;
  height: 2em;
  border-radius: 50%;
  border-top: solid 1em transparent;
  border-right: solid 1em transparent;
  border-bottom: solid 1em currentColor;
  border-left: solid 1em currentColor;
  -webkit-transform: rotate(-45deg);
          transform: rotate(-45deg);
}

.wink.icon:after {
  content: '';
  position: absolute;
  right: 3em;
  top: 3em;
  width: 2em;
  height: 2em;
  border-radius: 50%;
  border: solid 1em currentColor;
}

.wink.icon i {
  position: absolute;
  left: 3em;
  top: 3em;
  width: 8em;
  height: 8em;
  border-radius: 50%;
  border-top: solid 1em transparent;
  border-bottom: solid 1em currentColor;
  border-left: solid 1em transparent;
  border-right: solid 1em transparent;
}