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

.stage {
  box-sizing: border-box;
  min-height: 100vh;
  display: grid;
  place-items: center;
  margin: 0;
  background: #ffd23f;
  font-family: -apple-system, "Segoe UI", "Noto Sans KR", sans-serif;
  padding: clamp(8px, 4vw, 24px);
}

.lt {
  box-sizing: border-box;
  width: clamp(248px, 84vw, 392px);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 16px;
}

.lt__tree {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 8px;
}

.lt__link {
  position: relative;
  display: inline-block;
  color: #1b1a20;
  text-decoration: none;
  transform: translateX(0);
  transition: transform 220ms ease-out;
  font-family: inherit;
}

.lt__link--lead {
  font-weight: 800;
  font-size: clamp(20px, 5.4vw, 26px);
  line-height: 1.15;
}

.lt__link--sub {
  font-weight: 600;
  font-size: clamp(14px, 3.6vw, 17px);
  line-height: 1.2;
}

.lt__link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 3px;
  border-radius: 999px;
  background: #1b1a20;
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 220ms ease-out;
}

.lt__link:hover,
.lt__link:focus-visible {
  transform: translateX(6px);
}

.lt__link:hover::after,
.lt__link:focus-visible::after {
  transform: scaleX(1);
}

.lt__link[aria-current=page] {
  font-weight: 900;
}

.lt__link[aria-current=page]::before {
  content: "";
  display: inline-block;
  width: 7px;
  height: 7px;
  margin-right: 8px;
  border-radius: 50%;
  background: #1b1a20;
  vertical-align: middle;
}

.lt__legal {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px 16px;
}

.lt__fine {
  position: relative;
  color: #1b1a20;
  text-decoration: none;
  font-weight: 500;
  font-size: clamp(10px, 2.7vw, 12px);
  line-height: 1.4;
  font-family: inherit;
  border-bottom: 1px solid #1b1a20;
}

.lt__link:focus-visible,
.lt__fine:focus-visible {
  outline: 3px solid #1b1a20;
  outline-offset: 4px;
}

.is-demo .lt__link::after {
  animation-name: fillLine;
  animation-duration: 2s;
  animation-timing-function: ease-out;
  animation-iteration-count: infinite;
  animation-fill-mode: backwards;
}

.is-demo .lt__link {
  animation-name: stepIn;
  animation-duration: 2s;
  animation-timing-function: ease-out;
  animation-iteration-count: infinite;
  animation-fill-mode: backwards;
}

.is-demo .lt__link:nth-child(2),
.is-demo .lt__link:nth-child(2)::after {
  animation-delay: -1.5s;
}

.is-demo .lt__link:nth-child(3),
.is-demo .lt__link:nth-child(3)::after {
  animation-delay: -1s;
}

.is-demo .lt__link:nth-child(4),
.is-demo .lt__link:nth-child(4)::after {
  animation-delay: -0.5s;
}

@keyframes fillLine {
  0% {
    transform: scaleX(0);
  }
  5%, 16% {
    transform: scaleX(1);
  }
  25%, 100% {
    transform: scaleX(0);
  }
}
@keyframes stepIn {
  0% {
    transform: translateX(0);
  }
  5%, 16% {
    transform: translateX(6px);
  }
  25%, 100% {
    transform: translateX(0);
  }
}
@media (max-width: 340px), (max-height: 220px) {
  .lt {
    width: 248px;
    gap: 12px;
  }
  .lt__link--lead {
    font-size: 19px;
  }
  .lt__link--sub {
    font-size: 13px;
  }
  .lt__legal {
    gap: 0 12px;
  }
  .lt__fine {
    font-size: 10px;
  }
}
@media (prefers-reduced-motion: reduce) {
  .is-demo .lt__link,
  .is-demo .lt__link::after {
    animation: none !important;
  }
  .lt__link, .lt__link::after {
    transition: none !important;
  }
  .lt__link[aria-current=page]::after {
    transform: scaleX(1);
  }
}