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);
}

.stage {
  position: relative;
}

.ctatwr__panel {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  padding: 20px;
  border-radius: 16px;
  background: #231f28;
}

.ctatwr__btn {
  position: relative;
  border: 0;
  border-radius: 12px;
  background: #4cd4a6;
  color: #17141a;
  font-family: inherit;
  font-weight: 700;
  font-size: 15px;
  padding: 16px 20px;
  min-width: 168px;
  cursor: pointer;
  display: grid;
}

.ctatwr__phrase {
  grid-area: 1/1;
}

.ctatwr__phrase--first {
  opacity: 1;
  transition: opacity 220ms ease-out;
}

.ctatwr__phrase--first.is-hidden {
  opacity: 0;
}

.ctatwr__phrase--second {
  display: flex;
}

.ctatwr__phrase--second span {
  opacity: 0;
  transform: translateY(3px);
  transition: opacity 140ms ease-out, transform 140ms ease-out;
}

.ctatwr__phrase--second.is-shown span {
  opacity: 1;
  transform: translateY(0);
}

.ctatwr__hint {
  color: #9a93a6;
  font-size: 12px;
  text-align: center;
}

@media (max-width: 340px) {
  .ctatwr__panel {
    padding: 16px;
    gap: 12px;
  }
  .ctatwr__btn {
    padding: 12px 16px;
    font-size: 14px;
    min-width: 148px;
  }
}
@media (prefers-reduced-motion: reduce) {
  .ctatwr__phrase--second span {
    transition: none !important;
  }
}