.seismic-marker-container {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
}

.seismic-pulse-ring {
  position: absolute;
  border-radius: 50%;
  border: 2px solid;
  opacity: 0;
  animation: seismic-pulse 2.5s ease-out infinite;
}

.seismic-pulse-ring-inner {
  animation-delay: 0.8s;
}

.seismic-fill {
  position: absolute;
  border-radius: 50%;
  animation: seismic-breathe 2s ease-in-out infinite;
}

.seismic-center-dot {
  position: absolute;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  z-index: 1;
  box-shadow: 0 0 6px currentColor;
}

.seismic-label {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  margin-top: 4px;
  white-space: nowrap;
  text-align: center;
  font-family: 'Fira Code Variable', 'Noto Sans KR Variable', monospace;
  text-shadow: 0 0 4px rgba(0, 0, 0, 0.9);
  pointer-events: none;
}

.seismic-magnitude {
  display: block;
  font-size: 13px;
  font-weight: 800;
}

.seismic-place {
  display: block;
  font-size: 9px;
  opacity: 0.8;
}

@keyframes seismic-pulse {
  0% {
    transform: scale(0.3);
    opacity: 0.8;
  }
  100% {
    transform: scale(1.2);
    opacity: 0;
  }
}

@keyframes seismic-breathe {
  0%, 100% {
    opacity: 0.5;
    transform: scale(0.9);
  }
  50% {
    opacity: 0.8;
    transform: scale(1);
  }
}