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);
}

.un {
  box-sizing: border-box;
  width: min(396px, 88vw);
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-family: -apple-system, "Segoe UI", "Noto Sans KR", sans-serif;
  color: #fff7e6;
}

.un__list {
  box-sizing: border-box;
  height: 108px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.un__row {
  display: grid;
  grid-template-rows: 1fr;
  margin: 0;
  padding: 0;
  transition: grid-template-rows 300ms cubic-bezier(0.2, 0.8, 0.2, 1), opacity 220ms linear;
}

.un__row.is-gone {
  grid-template-rows: 0fr;
  opacity: 0;
}

.un__in {
  display: flex;
  align-items: center;
  gap: 8px;
  overflow: hidden;
  min-height: 0;
  margin: 0 0 8px;
  padding: 8px 12px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.07);
}

.un__name {
  flex: 1 1 auto;
  min-width: 0;
  font-size: 12px;
  line-height: 18px;
  font-weight: 700;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.un__del {
  display: inline-flex;
  flex: 0 0 auto;
  margin: 0;
  padding: 4px;
  border: 0;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.1);
  color: #fff7e6;
  cursor: pointer;
}

.un__del svg {
  display: block;
}

.un__del:focus-visible {
  outline: 2px solid #4cd4a6;
  outline-offset: 2px;
}

.un__slot {
  position: relative;
  overflow: hidden;
  height: 44px;
}

.un__toast {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 4px;
  box-sizing: border-box;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 8px 8px 16px;
  border-radius: 12px;
  background: #fff7e6;
  color: #17141a;
  box-shadow: 0 6px 12px rgba(23, 20, 26, 0.32);
  transform: translateY(48px);
  transition: transform 300ms cubic-bezier(0.2, 0.8, 0.2, 1);
}

.un__toast.is-on {
  transform: translateY(0);
}

.un__msg {
  flex: 1 1 auto;
  min-width: 0;
  font-size: 12px;
  line-height: 20px;
  font-weight: 700;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.un__undo {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  flex: 0 0 auto;
  margin: 0;
  padding: 4px 12px;
  border: 0;
  border-radius: 999px;
  background: #17141a;
  color: #4cd4a6;
  font-family: inherit;
  font-size: 11px;
  line-height: 18px;
  font-weight: 700;
  cursor: pointer;
}

.un__undo svg {
  display: block;
}

.un__undo:focus-visible {
  outline: 2px solid #fff7e6;
  outline-offset: 2px;
}

.un.is-demo .un__row {
  transition: none;
}

.un.is-demo .un__row:nth-child(2) {
  animation-name: un-row;
  animation-duration: 2s;
  animation-timing-function: cubic-bezier(0.2, 0.8, 0.2, 1);
  animation-iteration-count: infinite;
}

@keyframes un-row {
  0%, 18% {
    grid-template-rows: 1fr;
    opacity: 1;
  }
  30% {
    grid-template-rows: 0fr;
    opacity: 0;
  }
  62% {
    grid-template-rows: 0fr;
    opacity: 0;
  }
  76% {
    grid-template-rows: 1fr;
    opacity: 1;
  }
  90%, 100% {
    grid-template-rows: 1fr;
    opacity: 1;
  }
}
.un.is-demo .un__toast {
  transition: none;
  animation-name: un-toast;
  animation-duration: 2s;
  animation-timing-function: cubic-bezier(0.2, 0.8, 0.2, 1);
  animation-iteration-count: infinite;
}

@keyframes un-toast {
  0%, 20% {
    transform: translateY(48px);
  }
  32% {
    transform: translateY(0);
  }
  66% {
    transform: translateY(0);
  }
  80% {
    transform: translateY(48px);
  }
  90%, 100% {
    transform: translateY(48px);
  }
}
.un.is-demo .un__undo {
  animation-name: un-press;
  animation-duration: 2s;
  animation-timing-function: cubic-bezier(0.2, 1.4, 0.4, 1);
  animation-iteration-count: infinite;
}

@keyframes un-press {
  0%, 56% {
    transform: scale(1);
  }
  62% {
    transform: scale(0.84);
  }
  70% {
    transform: scale(1);
  }
  90%, 100% {
    transform: scale(1);
  }
}
@media (max-width: 340px) {
  .un__list {
    height: 90px;
  }
  .un__in {
    margin: 0 0 4px;
    padding: 4px 8px;
  }
  .un__name {
    font-size: 11px;
    line-height: 16px;
  }
  .un__slot {
    height: 36px;
  }
  .un__toast {
    gap: 8px;
    padding: 4px 4px 4px 12px;
  }
  .un__msg {
    font-size: 11px;
    line-height: 18px;
  }
  .un__undo {
    padding: 0 8px;
    font-size: 10px;
    line-height: 16px;
  }
}
@media (prefers-reduced-motion: reduce) {
  .un.is-demo .un__row:nth-child(2),
  .un.is-demo .un__toast,
  .un.is-demo .un__undo {
    animation: none !important;
  }
  .un.is-demo .un__toast {
    transform: translateY(0);
  }
  .un__row,
  .un__toast {
    transition: none;
  }
}