/* Import */
@font-face {
  font-family: 'NeoDunggeunmo';
  src: url('https://cdn.jsdelivr.net/gh/projectnoonnu/noonfonts_2001@1.3/NeoDunggeunmo.woff')
    format('woff');
  font-weight: normal;
  font-style: normal;
}

/* Common */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'NeoDunggeunmo', serif;
}
*::-webkit-scrollbar {
  display: none;
}
html,
body {
  width: 100vw;
  height: 100vh;
  background: url('../images/gameboy.png') top/cover no-repeat;
  background-size: 1920px 1080px;
}
:root {
  --background-color: #fff;
  --text-color: #333;
  --theme-color: dodgerblue;
  --emphasized: orange;
  --shadow-color: rgba(90, 90, 90, 0.4);
}

/* Container */
#container {
  position: absolute;
  top: 220px;
  left: 50%;
  transform: translateX(-50%);
  width: 960px;
  height: 640px;
  border-radius: 4px;
  overflow: hidden;
}

.fadein {
  transition: 0.4s ease opacity;
  opacity: 1;
}
.fadeout {
  transition: 0.4s ease opacity;
  opacity: 0;
}

.hidden {
  display: none;
}

/* Responsive */
@media screen and (max-width: 960px) {
  #container {
    width: 100vw;
    height: calc(200vw / 3);
  }
}