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

.stage {
  box-sizing: border-box;
  min-height: 100vh;
  display: grid;
  place-items: center;
  margin: 0;
  background: #ff4d1f;
  font-family: -apple-system, "Segoe UI", "Noto Sans KR", sans-serif;
  padding: clamp(8px, 4vw, 24px);
}

.stage {
  align-items: flex-start;
  padding-top: 32px;
}

.um {
  position: relative;
  box-sizing: border-box;
  width: min(260px, 86vw);
  display: flex;
  justify-content: flex-end;
}

.um__avatar {
  position: relative;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 0;
  background: #17141a;
  color: #fff7e6;
  font-weight: 800;
  font-size: 14px;
  cursor: pointer;
  display: grid;
  place-items: center;
}

.um__ring {
  position: absolute;
  inset: -3px;
  border-radius: 50%;
  border: 2px solid #fff7e6;
  opacity: 0;
}

.um__initial {
  position: relative;
  z-index: 1;
}

.um__menu {
  box-sizing: border-box;
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  width: 190px;
  border-radius: 16px;
  background: #fff7e6;
  box-shadow: 0 14px 24px rgba(23, 20, 26, 0.32);
  padding: 8px;
  transform-origin: top right;
  opacity: 0;
  transform: scale(0.92) translateY(-4px);
  pointer-events: none;
  transition: opacity 220ms cubic-bezier(0.2, 1.4, 0.4, 1), transform 220ms cubic-bezier(0.2, 1.4, 0.4, 1);
}

.um__menu.is-open {
  opacity: 1;
  transform: scale(1) translateY(0);
  pointer-events: auto;
}

.um__who {
  padding: 8px;
  border-bottom: 1px solid rgba(23, 20, 26, 0.1);
  margin-bottom: 4px;
}

.um__who strong {
  display: block;
  font-size: 12px;
  color: #17141a;
}

.um__who span {
  display: block;
  font-size: 10px;
  color: rgba(23, 20, 26, 0.72);
}

.um__item {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 8px;
  border: 0;
  background: transparent;
  cursor: pointer;
  padding: 8px;
  border-radius: 8px;
  font: inherit;
  font-weight: 600;
  font-size: 12px;
  color: #17141a;
  text-align: left;
  transition: background 220ms cubic-bezier(0.2, 1.4, 0.4, 1);
}

.um__item:hover, .um__item:focus-visible {
  background: rgba(23, 20, 26, 0.06);
}

.um__item--danger {
  color: #c2361a;
}

.um__ic {
  width: 12px;
  height: 12px;
  border-radius: 4px;
  background: currentColor;
  opacity: 0.55;
}

.um__avatar.is-demo .um__ring {
  animation: um-pulse 2s ease-out infinite;
}

.um__avatar.is-demo + .um__menu {
  animation: um-pop 2s cubic-bezier(0.2, 1.4, 0.4, 1) infinite;
}

@keyframes um-pulse {
  0% {
    opacity: 0.55;
    transform: scale(1);
  }
  70%, 100% {
    opacity: 0;
    transform: scale(1.35);
  }
}
@keyframes um-pop {
  0% {
    opacity: 0;
    transform: scale(0.92) translateY(-4px);
  }
  18%, 100% {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}
@media (max-width: 340px) {
  .um__menu {
    width: 168px;
  }
}
@media (max-height: 220px) {
  .stage {
    padding-top: 8px;
  }
  .um__menu {
    top: calc(100% + 4px);
    padding: 4px;
  }
  .um__who {
    padding: 4px;
    margin-bottom: 4px;
  }
  .um__who span {
    display: none;
  }
  .um__item {
    padding: 4px 4px;
    gap: 4px;
  }
}
@media (prefers-reduced-motion: reduce) {
  .um__avatar.is-demo .um__ring {
    animation: none !important;
  }
  .um__menu {
    animation: none !important;
    transition: none;
  }
}