html, body {
  margin: 0;
  overflow: hidden;
}

.stage {
  box-sizing: border-box;
  min-height: 100vh;
  display: grid;
  place-items: center;
  margin: 0;
  background: #17141a;
  font-family: -apple-system, "Segoe UI", "Noto Sans KR", sans-serif;
  padding: clamp(8px, 4vw, 24px);
}

.tour {
  box-sizing: border-box;
  width: min(100%, 264px);
}

.view {
  overflow: hidden;
  border-radius: 16px;
}

.track {
  display: flex;
  width: 400%;
  transform: translateX(0);
}

.stage.is-demo .track {
  animation: walk 2s cubic-bezier(0.2, 0.8, 0.2, 1) infinite;
}

.slide {
  box-sizing: border-box;
  width: 25%;
  flex: 0 0 25%;
  padding: 16px;
  background: #241f29;
  color: #fff;
}

.slide b {
  display: block;
  font-size: 11px;
  font-weight: 700;
  color: #5b8cf8;
}

.slide p {
  margin: 8px 0 0;
  font-size: 13px;
  font-weight: 600;
  line-height: 1.4;
}

.nav {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  margin: 12px 0 0;
}

.nb {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 12px;
  background: #332c3a;
  color: #cbd5e1;
}

.nb svg {
  width: 16px;
  height: 16px;
  display: block;
}

.nb--go {
  background: #2f6df6;
  color: #fff;
}

.stage.is-demo .nb--go {
  animation: press 2s cubic-bezier(0.2, 0.8, 0.2, 1) infinite, nb-jitter 2s cubic-bezier(0.2, 0.8, 0.2, 1) infinite;
  translate: 0 0;
}

@keyframes press {
  0%, 16% {
    transform: scale(1);
  }
  20% {
    transform: scale(0.88);
  }
  24% {
    transform: scale(1.08);
  }
  28%, 41% {
    transform: scale(1);
  }
  45% {
    transform: scale(0.88);
  }
  49% {
    transform: scale(1.08);
  }
  53%, 66% {
    transform: scale(1);
  }
  70% {
    transform: scale(0.88);
  }
  74% {
    transform: scale(1.08);
  }
  78%, 100% {
    transform: scale(1);
  }
}
.stage.is-demo .slide b {
  animation: cnt-pop 2s linear(0, 0.051, 0.176, 0.341, 0.518, 0.685, 0.831, 0.947, 1.032, 1.087, 1.117, 1.126, 1.121, 1.105, 1.085, 1.062, 1.041, 1.022, 1.008, 0.997, 1) infinite;
}

@keyframes cnt-pop {
  0%, 16% {
    transform: scale(1);
  }
  20% {
    transform: scale(1.3);
  }
  24% {
    transform: scale(0.95);
  }
  28%, 41% {
    transform: scale(1);
  }
  45% {
    transform: scale(1.3);
  }
  49% {
    transform: scale(0.95);
  }
  53%, 66% {
    transform: scale(1);
  }
  70% {
    transform: scale(1.3);
  }
  74% {
    transform: scale(0.95);
  }
  78%, 91% {
    transform: scale(1);
  }
  95% {
    transform: scale(1.3);
  }
  98%, 100% {
    transform: scale(1);
  }
}
@keyframes walk {
  0%, 16% {
    transform: translateX(0);
  }
  25%, 41% {
    transform: translateX(-25%);
  }
  50%, 66% {
    transform: translateX(-50%);
  }
  75%, 100% {
    transform: translateX(-75%);
  }
}
@keyframes press {
  0%, 16% {
    transform: scale(1);
  }
  20% {
    transform: scale(0.88);
  }
  24%, 41% {
    transform: scale(1);
  }
  45% {
    transform: scale(0.88);
  }
  49%, 66% {
    transform: scale(1);
  }
  70% {
    transform: scale(0.88);
  }
  74%, 100% {
    transform: scale(1);
  }
}
@keyframes nb-jitter {
  0%, 18% {
    translate: 0 0;
  }
  20% {
    translate: -1.5px 0;
  }
  21.5% {
    translate: 1.5px 0;
  }
  23%, 43% {
    translate: 0 0;
  }
  45% {
    translate: -1.5px 0;
  }
  46.5% {
    translate: 1.5px 0;
  }
  48%, 68% {
    translate: 0 0;
  }
  70% {
    translate: -1.5px 0;
  }
  71.5% {
    translate: 1.5px 0;
  }
  73%, 100% {
    translate: 0 0;
  }
}
@media (prefers-reduced-motion: reduce) {
  .stage.is-demo .track {
    animation: none;
    transform: translateX(0);
  }
  .stage.is-demo .nb--go {
    animation: none;
    translate: 0 0;
  }
  .stage.is-demo .slide b {
    animation: none;
  }
}