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);
}

.sl-row {
  display: flex;
  align-items: center;
  gap: 12px;
}

.sl-chevron {
  width: 20px;
  height: 20px;
  border-top: 4px solid #17141a;
  border-right: 4px solid #17141a;
  transform: rotate(45deg) translateX(-8px);
  opacity: 0;
}

@keyframes sl-flow {
  0% {
    opacity: 0;
    transform: rotate(45deg) translateX(-8px);
  }
  26% {
    opacity: 1;
    transform: rotate(45deg) translateX(3px);
  }
  38% {
    opacity: 1;
    transform: rotate(45deg) translateX(0);
  }
  70% {
    opacity: 1;
    transform: rotate(45deg) translateX(0);
  }
  100% {
    opacity: 0;
    transform: rotate(45deg) translateX(8px);
  }
}
.sl-chevron {
  animation: sl-flow 1.6s ease-out infinite;
}

.sl-chevron--1 {
  animation-delay: 0ms;
}

.sl-chevron--2 {
  animation-delay: 180ms;
}

.sl-chevron--3 {
  animation-delay: 360ms;
}

.sl-trail {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #17141a;
  opacity: 0;
}

@keyframes sl-trail-flow {
  0% {
    opacity: 0;
    transform: translateX(-8px) scale(0.5);
  }
  26% {
    opacity: 0.35;
    transform: translateX(2px) scale(1);
  }
  38% {
    opacity: 0.2;
    transform: translateX(0) scale(0.8);
  }
  70% {
    opacity: 0.2;
    transform: translateX(0) scale(0.8);
  }
  100% {
    opacity: 0;
    transform: translateX(8px) scale(0.4);
  }
}
.sl-trail {
  animation: sl-trail-flow 1.6s ease-out 540ms infinite;
}

@media (prefers-reduced-motion: reduce) {
  .sl-chevron {
    animation: none !important;
    opacity: 0.6 !important;
    transform: rotate(45deg) translateX(0) !important;
  }
  .sl-trail {
    animation: none !important;
    opacity: 0 !important;
  }
}