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);
}

.lines {
  width: clamp(180px, 70%, 360px);
  display: grid;
  gap: clamp(10px, 3vw, 16px);
}

.line {
  position: relative;
  overflow: hidden;
  height: clamp(12px, 4vw, 16px);
  border-radius: 12px;
  background: rgba(255, 247, 230, 0.14);
}
.line::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent, rgba(255, 247, 230, 0.45), transparent);
  transform: translateX(-120%);
  animation: shimmer 2s ease-out infinite;
}
.line:nth-child(1) {
  width: 92%;
}
.line:nth-child(2) {
  width: 100%;
}
.line:nth-child(3) {
  width: 78%;
}
.line:nth-child(4) {
  width: 55%;
}
.line:nth-child(2)::after {
  animation-delay: -140ms;
}
.line:nth-child(3)::after {
  animation-delay: -280ms;
}
.line:nth-child(4)::after {
  animation-delay: -420ms;
}

@keyframes shimmer {
  to {
    transform: translateX(120%);
  }
}
@media (prefers-reduced-motion: reduce) {
  .line::after {
    animation: none !important;
    opacity: 0.45;
    transform: translateX(0);
  }
}