.hotspot {
  display: block;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.8);
  border: 2px solid #e30613;
  box-shadow: 0 0 5px rgba(0, 0, 0, 0.5);
  transition: all 0.3s ease;
}
.hotspot:hover {
  transform: scale(1.2);
  border-width: 3px;
}
.hotspot > * {
  transform: translate(-50%, -50%);
  display: none;
}
.hotspot.visible > * {
  display: block;
}
.annotation {
  position: absolute;
  left: 150%;
  top: 50%;
  background-color: #fff;
  color: #333;
  padding: 12px 16px;
  border-radius: 8px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  width: 250px;
  font-size: 14px;
  line-height: 1.5;
  z-index: 10;
}
.annotation strong {
  font-weight: bold;
  color: #e30613;
}
.hotspot-number {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 14px;
  font-weight: bold;
  color: #e30613;
  pointer-events: none;
}
.hotspot.visible .hotspot-number,
.hotspot:hover .hotspot-number {
  color: white;
}
.hotspot.visible,
.hotspot:hover {
  background: #e30613;
}