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

.stage {
  box-sizing: border-box;
  min-height: 100vh;
  display: grid;
  place-items: center;
  margin: 0;
  background: #71b9ab;
  font-family: -apple-system, "Segoe UI", "Noto Sans KR", sans-serif;
  padding: clamp(8px, 4vw, 24px);
}

.bandm {
  box-sizing: border-box;
  display: flex;
  gap: 12px;
  width: clamp(252px, 82vw, 372px);
}

.bandm__panel {
  position: relative;
  flex: 1 1 0;
  height: clamp(148px, 46vh, 208px);
  border-radius: 16px;
  background: #cec29c;
  border: 3px solid #241f26;
  box-shadow: 0 6px 0 #241f26;
  overflow: hidden;
  animation: panelLift 2s ease-out infinite;
}

.bandm__panel:nth-child(2) {
  animation-delay: -0.22s;
}

.bandm__panel:nth-child(3) {
  animation-delay: -0.44s;
}

.bandm__fill {
  position: absolute;
  inset: 0 auto 0 0;
  width: 240px;
  animation: fillFlow 2s linear infinite;
}

.bandm__fill--dots {
  background-image: radial-gradient(circle at 12px 12px, #241f26 3.5px, transparent 4.5px);
  background-size: 24px 24px;
}

.bandm__fill--wave {
  background-image: linear-gradient(to bottom, transparent 8px, #241f26 8px 28px, transparent 28px), radial-gradient(circle 10px at 12px 8px, #241f26 0 9.5px, transparent 10px), radial-gradient(circle 10px at 0 28px, #241f26 0 9.5px, transparent 10px);
  background-size: 24px 40px;
  background-repeat: repeat;
}

.bandm__fill--cross {
  background-color: #82adc2;
  background-image: linear-gradient(to right, transparent 9.5px, #241f26 9.5px 14.5px, transparent 14.5px), linear-gradient(to bottom, transparent 9.5px, #241f26 9.5px 14.5px, transparent 14.5px);
  background-size: 24px 24px;
  background-repeat: repeat;
}

.bandm__name {
  position: absolute;
  left: 50%;
  bottom: 8px;
  transform: translateX(-50%);
  padding: 4px 8px;
  border-radius: 999px;
  background: #ffffff;
  border: 2px solid #241f26;
  color: #241f26;
  font-weight: 700;
  font-size: 11px;
  line-height: 1;
  font-family: inherit;
}

@keyframes fillFlow {
  from {
    transform: translateX(0);
  }
  to {
    transform: translateX(-120px);
  }
}
@keyframes panelLift {
  0%, 100% {
    transform: translateY(0);
  }
  45% {
    transform: translateY(-10px);
  }
}
@media (max-width: 340px), (max-height: 220px) {
  .bandm {
    width: 232px;
    gap: 8px;
  }
  .bandm__panel {
    height: 128px;
  }
  .bandm__name {
    bottom: 4px;
    font-size: 10px;
  }
}
@media (prefers-reduced-motion: reduce) {
  .bandm__fill, .bandm__panel {
    animation: none !important;
    transform: none;
  }
}