* {
  padding: 0;
  margin: 0;
}
body {
  color: aliceblue;
  overflow: hidden;
}
.light {
  background-color: #89a6ce;
}
.middle {
  background-color: #517fbe;
}
.dark {
  background-color: #234779;
}
.mdark {
  background-color: #182d49;
}
.ddark {
  background-color: #041327;
}
.modark {
  background-color: #010307;
}
.center {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}
#container #home #nav {
  display: flex;
  justify-content: space-around;
  padding-top: 50px;
}
#container #home #nav #nav-item-wrap {
  width: 100%;
  display: flex;
  padding-left: 100px;
  padding-bottom: 30px;
  font-weight: bolder;
  font-size: 1.2em;
}
#container #home #nav #nav-item-wrap #nav-item {
  margin-right: 60px;
  cursor: pointer;
}
#container #home #nav #nav-item-wrap .active {
  border-bottom: 2px solid #fff;
}
#container #home #nav #setting {
  padding-right: 100px;
  cursor: pointer;
}
#container #home #wrong {
  display: none;
  position: absolute;
  bottom: 50px;
  left: 50px;
  transform: translateX(-50%);
  animation: bounce 0.6s linear 3 alternate;
  color: #030e1d;
}
#container #home #wrong #drag {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  box-shadow: rgba(3, 14, 29, 0.2) 2px 2px 4px 2px;
  background: rgba(255, 255, 255, 0.644);
  text-align: center;
  line-height: 60px;
  font-weight: bolder;
  cursor: pointer;
}
#container #home #wrong #book {
  display: none;
  position: absolute;
  bottom: 70px;
  left: 70px;
  padding: 10px;
  border-radius: 10px;
  box-shadow: rgba(3, 14, 29, 0.2) 2px 2px 4px 2px;
  background: rgba(255, 255, 255, 0.644);
}
#container #home .light {
  background-color: #89a6ce;
  box-shadow: #658bbf 4px 4px 8px 4px;
}
#container #home .middle {
  background-color: #517fbe;
  box-shadow: #3c66a0 4px 4px 8px 4px;
}
#container #home .dark {
  background-color: #234779;
  box-shadow: #183051 4px 4px 8px 4px;
}
#container #home .mdark {
  background-color: #182d49;
  box-shadow: #0b1523 4px 4px 8px 4px;
}
#container #home .ddark {
  background-color: #041327;
  box-shadow: #000000 4px 4px 8px 4px;
}
#container #home .modark {
  background-color: #010307;
  box-shadow: #000000 4px 4px 8px 4px;
}
#container #home #foot {
  position: absolute;
  display: flex;
  justify-content: center;
  bottom: 0;
  width: 100%;
}
#container #home #foot #model {
  display: none;
  position: absolute;
  margin-right: 600px;
  padding: 20px;
  border-radius: 20px;
  background-color: aliceblue;
  color: #3d3d3d;
}
#container #home #foot #model::after {
  content: '';
  display: block;
  position: absolute;
  top: 40px;
  right: -30px;
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 30px 30px 0 0;
  border-color: aliceblue transparent transparent transparent;
}
#container #home #foot #model input[type=range] {
  -webkit-appearance: none;
  border-radius: 10px;
}
#container #home #foot #model input[type=range]::-webkit-slider-runnable-track {
  background-color: #817a7a;
  height: 3px;
  border-radius: 10px;
}
#container #home #foot #model input[type=range]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 10px;
  height: 10px;
  margin-top: -3px;
  border-radius: 50%;
  border: 2px solid #617dd8;
  background-color: aliceblue;
}
#container #home #foot #model #close {
  text-decoration: underline;
  border-radius: 10px;
  font-weight: bold;
  color: #617dd8;
  text-align: right;
  cursor: pointer;
}
#container #home #foot #bottom-img {
  width: 300px;
}
#container #home #foot #bottom-img > img {
  width: 100%;
}
#container #home #main {
  display: flex;
  flex-direction: column;
  align-items: center;
  height: 40vh;
  font-weight: bolder;
}
#container #home #main #text {
  font-size: 4em;
}
#container #home #main #btn {
  margin-top: 30px;
  padding: 10px 20px;
  background-color: #fff;
  border-radius: 30px;
  color: #030e1d;
  font-size: 1.5em;
  cursor: pointer;
}
#container #ready-page {
  display: none;
}
#container #ready-page .interval {
  font-size: 6em;
  border: 5px solid aliceblue;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  text-align: center;
  line-height: 200px;
}
#container #game-page {
  display: none;
  background-color: #fff;
}
#container #game-page #input {
  display: none;
  height: 1em;
  width: 5em;
  border: none;
  outline: none;
  font-size: 4em;
  font-weight: bold;
  text-align: center;
  color: rgba(173, 216, 230, 0.5);
}
#container #game-page #area {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 10;
}
#container #game-page #area #item {
  position: absolute;
  width: 80px;
  height: 80px;
  border-radius: 50%;
  text-align: center;
  line-height: 80px;
  font-weight: bolder;
  font-size: 1.3em;
}
#container #game-page #ground {
  position: absolute;
  bottom: 0;
}
#container #game-page #ground #wave {
  min-height: 100vh;
  background-color: transparent;
  overflow: hidden;
}
#container #game-page #ground #wave:before,
#container #game-page #ground #wave:after {
  content: "";
  position: absolute;
  left: 550px;
  min-width: 280vw;
  min-height: 280vw;
  background-color: #fff;
  z-index: -1;
  animation: wave linear infinite;
}
#container #game-page #ground #wave:before {
  bottom: 4vh;
  border-radius: 45%;
  animation-duration: 10s;
}
#container #game-page #ground #wave:after {
  bottom: 2vh;
  opacity: 0.5;
  border-radius: 43%;
  animation-duration: 9s;
}
#container #game-page #score-show {
  font-size: 3em;
  font-weight: bolder;
  text-align: center;
  opacity: 0;
}
#container #game-page #score-show #score-btn {
  font-size: 0.5em;
  font-style: italic;
  text-decoration: underline;
  cursor: pointer;
}
#container #game-page #score-show #book {
  background: rgba(255, 255, 255, 0.644);
  margin-top: 10px;
  padding: 10px;
  font-size: 0.5em;
}
#container #game-page #score-contain {
  position: absolute;
  right: 30px;
  bottom: 10px;
  font-weight: bolder;
  font-size: 1.1em;
}
.slide-up {
  animation: slideUp 0.5s ease forwards;
}
.slide-down {
  animation: slideDown 0.5s ease forwards;
}
.slide-up-back {
  animation: slideUpBack 0.5s ease forwards;
}
.slide-down-back {
  animation: slideDownBack 0.5s ease forwards;
}
.fade-in {
  animation: fadeIn 0.5s ease forwards;
}
.fade-out {
  animation: fadeOut 0.5s ease forwards;
}
.ripple {
  animation: ripple 1s ease forwards;
}
.slide-into {
  animation: slideInto 1s ease forwards;
}
.shrink {
  animation: shrink 1s ease forwards;
}
.flow-up {
  animation: flowUp 3s ease 0.5s forwards;
}
@keyframes slideUp {
  to {
    margin-top: -200px;
  }
}
@keyframes slideDownBack {
  from {
    margin-top: -200px;
  }
  to {
    margin-top: 0;
  }
}
@keyframes slideDown {
  from {
    margin-bottom: 0;
  }
  to {
    margin-bottom: -400px;
  }
}
@keyframes slideUpBack {
  from {
    margin-bottom: -400px;
  }
  to {
    margin-bottom: 0;
  }
}
@keyframes slideInto {
  from {
    margin-bottom: -200px;
  }
  to {
    margin-bottom: 0;
  }
}
@keyframes fadeOut {
  to {
    opacity: 0;
  }
}
@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}
@keyframes ripple {
  to {
    transform: translate(-50%, -50%) scale(2);
    opacity: 0;
  }
}
@keyframes wave {
  0% {
    transform: translate(-45%, 0%) rotateZ(0deg);
  }
  50% {
    transform: translate(-45%, -1%) rotateZ(180deg);
  }
  100% {
    transform: translate(-45%, 0%) rotateZ(360deg);
  }
}
@keyframes shrink {
  0% {
    background-color: transparent;
    transform: translate(-50%, -50%) scale(1);
  }
  50% {
    background-color: transparent;
    transform: translate(-50%, -50%) scale(0);
  }
  100% {
    background-color: #fff;
    transform: translate(-50%, -50%) scale(10);
  }
}
@keyframes drop {
  0% {
    top: -50px;
    opacity: 1;
  }
  75% {
    top: 75vh;
    opacity: 1;
  }
  100% {
    top: 100vh;
    opacity: 0;
  }
}
@keyframes flowUp {
  to {
    bottom: 120vh;
  }
}
@keyframes bounce {
  0% {
    bottom: 50px;
  }
  50% {
    bottom: 60px;
  }
  100% {
    bottom: 50px;
  }
}