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);
}

.tg-panel {
  width: min(280px, 88vw);
  box-sizing: border-box;
  border-radius: 16px;
  background: #17141a;
  color: #fff7e6;
  box-shadow: 0 14px 24px rgba(23, 20, 26, 0.32);
  overflow: hidden;
  font-family: -apple-system, "Segoe UI", sans-serif;
}

.tg-panel__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 16px;
}

.tg-panel__label {
  font-weight: 600;
  font-size: 14px;
  line-height: 1;
  font-family: inherit;
}

.tg-panel__chevron {
  display: inline-block;
  color: #5b8cf8;
  transition: transform 300ms cubic-bezier(0.2, 0.8, 0.2, 1);
}

.tg-panel__body {
  padding: 0 16px 16px;
  font-weight: 400;
  font-size: 12px;
  line-height: 1.5;
  font-family: inherit;
  opacity: 0.85;
  transform-origin: top;
  transition: opacity 300ms cubic-bezier(0.2, 0.8, 0.2, 1), transform 300ms cubic-bezier(0.2, 0.8, 0.2, 1);
}

.tg-panel:not(.is-open) .tg-panel__chevron {
  transform: rotate(-90deg);
}

.tg-panel:not(.is-open) .tg-panel__body {
  opacity: 0;
  transform: scaleY(0);
}

@keyframes tg-chevron {
  0%, 15% {
    transform: rotate(-90deg);
  }
  45%, 70% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(-90deg);
  }
}
@keyframes tg-body {
  0%, 15% {
    opacity: 0;
    transform: scaleY(0);
  }
  45%, 70% {
    opacity: 0.85;
    transform: scaleY(1);
  }
  100% {
    opacity: 0;
    transform: scaleY(0);
  }
}
.tg-panel.is-demo .tg-panel__chevron {
  animation: tg-chevron 2s cubic-bezier(0.2, 0.8, 0.2, 1) infinite;
}

.tg-panel.is-demo .tg-panel__body {
  animation: tg-body 2s cubic-bezier(0.2, 0.8, 0.2, 1) infinite;
}

@media (prefers-reduced-motion: reduce) {
  .tg-panel__chevron, .tg-panel__body {
    transition: none;
  }
  .tg-panel.is-demo .tg-panel__chevron,
  .tg-panel.is-demo .tg-panel__body {
    animation: none !important;
    opacity: 0.85;
    transform: none;
  }
}