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

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

.sp {
  width: min(300px, 86vw);
}

.sp__radio {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.sp__nav {
  position: relative;
  isolation: isolate;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin-bottom: 12px;
  border-bottom: 1px solid rgba(23, 20, 26, 0.12);
}

.sp__tab {
  padding-bottom: 8px;
  text-align: center;
  font-weight: 600;
  font-size: clamp(12px, 3.4vw, 14px);
  line-height: 1;
  font-family: inherit;
  color: #17141a;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}

.sp__indicator {
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 33.3333333333%;
  height: 2px;
  background: #2f6df6;
  transform: translateX(0%);
  transition: transform 300ms ease-out;
}

.sp__nav::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  z-index: -1;
  width: 33.3333333333%;
  height: 2px;
  background: rgba(47, 109, 246, 0.35);
  filter: blur(2px);
  opacity: 0;
}

#sp-1:checked ~ .sp__nav .sp__indicator {
  transform: translateX(0%);
}

#sp-2:checked ~ .sp__nav .sp__indicator {
  transform: translateX(100%);
}

#sp-3:checked ~ .sp__nav .sp__indicator {
  transform: translateX(200%);
}

.sp__viewport {
  overflow: hidden;
}

.sp__track {
  display: flex;
  width: 300%;
  transform: translateX(0%);
  transition: transform 300ms ease-out;
}

.sp__panel {
  flex: 0 0 33.3333333333%;
  margin: 0;
  box-sizing: border-box;
  padding-right: 16px;
  color: rgba(23, 20, 26, 0.8);
  font-weight: 400;
  font-size: clamp(12px, 3.2vw, 13px);
  line-height: 1.5;
  font-family: inherit;
}

#sp-1:checked ~ .sp__viewport .sp__track {
  transform: translateX(0%);
}

#sp-2:checked ~ .sp__viewport .sp__track {
  transform: translateX(-33.333%);
}

#sp-3:checked ~ .sp__viewport .sp__track {
  transform: translateX(-66.667%);
}

.sp.is-demo .sp__track {
  animation: sp-loop 2s ease-out infinite;
}

.sp.is-demo .sp__indicator {
  animation: sp-indicator-loop 2s ease-out infinite;
}

.sp.is-demo .sp__nav::after {
  animation: sp-trail-loop 2s ease-out infinite;
  animation-delay: 120ms;
}

@keyframes sp-loop {
  0%, 15% {
    transform: translateX(0%);
  }
  33%, 48% {
    transform: translateX(-33.333%);
  }
  66%, 81% {
    transform: translateX(-66.667%);
  }
  100% {
    transform: translateX(0%);
  }
}
@keyframes sp-indicator-loop {
  0%, 15% {
    transform: translateX(0%);
  }
  30% {
    transform: translateX(108%);
  }
  33%, 48% {
    transform: translateX(100%);
  }
  63% {
    transform: translateX(216%);
  }
  66%, 81% {
    transform: translateX(200%);
  }
  100% {
    transform: translateX(0%);
  }
}
@keyframes sp-trail-loop {
  0%, 15% {
    transform: translateX(0%);
    opacity: 0;
  }
  24% {
    opacity: 0.35;
  }
  30% {
    transform: translateX(108%);
    opacity: 0.35;
  }
  33%, 40% {
    transform: translateX(100%);
    opacity: 0.35;
  }
  48% {
    transform: translateX(100%);
    opacity: 0;
  }
  63% {
    transform: translateX(216%);
    opacity: 0.35;
  }
  66%, 73% {
    transform: translateX(200%);
    opacity: 0.35;
  }
  81% {
    transform: translateX(200%);
    opacity: 0;
  }
  100% {
    transform: translateX(0%);
    opacity: 0;
  }
}
@media (prefers-reduced-motion: reduce) {
  .sp__track, .sp__indicator {
    transition: none;
  }
  .sp.is-demo .sp__track,
  .sp.is-demo .sp__indicator,
  .sp.is-demo .sp__nav::after {
    animation: none !important;
  }
  .sp__nav::after {
    opacity: 0;
  }
}