.world-label {
  position: fixed;
  z-index: 8;
  display: grid;
  gap: .12rem;
  min-width: 9.5rem;
  padding: .48rem .58rem .5rem .72rem;
  transform: translate(-50%, calc(-100% - 1.2rem));
  border-left: 1px solid rgba(139, 215, 189, .72);
  color: rgba(244, 248, 245, .96);
  background: linear-gradient(90deg, rgba(7, 20, 18, .76), rgba(7, 20, 18, .08));
  pointer-events: none;
  opacity: 0;
  transition: opacity .18s ease;
  text-shadow: 0 1px 8px rgba(0, 0, 0, .55);
}

.world-label::before {
  content: "";
  position: absolute;
  left: -3px;
  bottom: -1.05rem;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: #8bd7bd;
  box-shadow: 0 0 .8rem rgba(139, 215, 189, .9);
}

.world-label::after {
  content: "";
  position: absolute;
  left: -1px;
  top: 100%;
  width: 1px;
  height: 1rem;
  background: linear-gradient(rgba(139, 215, 189, .65), rgba(139, 215, 189, .08));
}

.world-label.visible { opacity: 1; }
.world-label span {
  color: rgba(190, 234, 218, .72);
  font-size: .53rem;
  letter-spacing: .1em;
  text-transform: uppercase;
}
.world-label strong {
  font-size: .68rem;
  font-weight: 680;
  letter-spacing: -.01em;
}

@media (max-width: 640px) {
  .world-label { min-width: 8rem; padding: .38rem .48rem .4rem .58rem; }
  .world-label strong { font-size: .6rem; }
}