.measurement-panel {
  position: fixed;
  bottom: 20px;
  right: 20px;
  background: rgba(255, 255, 255, 0.06);
  color: rgba(255, 255, 255, 0.9);
  padding: 12px 16px;
  border-radius: 12px;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  font-size: 14px;
  font-weight: 500;
  z-index: 100;
  cursor: pointer;
  border: 1px solid rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  user-select: none;
  min-width: 100px;
  text-align: center;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}
.measurement-panel:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
  color: rgba(255, 255, 255, 1);
  transform: scale(1.02);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
}
.measurement-panel .disabled {
  color: rgba(255, 255, 255, 0.4);
  border-color: rgba(255, 255, 255, 0.05);
  background: rgba(255, 255, 255, 0.02);
}
.measurement-panel .active {
  color: #4ade80;
  border-color: rgba(74, 222, 128, 0.3);
  background: rgba(74, 222, 128, 0.1);
  box-shadow: 0 0 20px rgba(74, 222, 128, 0.1);
}
.measurement-panel .measured {
  color: #60a5fa;
  border-color: rgba(96, 165, 250, 0.3);
  background: rgba(96, 165, 250, 0.1);
  box-shadow: 0 0 20px rgba(96, 165, 250, 0.1);
}

/* Light theme for measurement panel */
.measurement-panel.light-theme {
  background: rgba(0, 0, 0, 0.8);
  color: rgba(255, 255, 255, 0.95);
  border: 1px solid rgba(0, 0, 0, 0.2);
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.25);
}

.measurement-panel.light-theme:hover {
  background: rgba(0, 0, 0, 0.9);
  border-color: rgba(0, 0, 0, 0.3);
  color: rgba(255, 255, 255, 1);
  transform: scale(1.02);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.35);
}

.measurement-panel.light-theme.disabled {
  color: rgba(255, 255, 255, 0.5);
  border-color: rgba(0, 0, 0, 0.1);
  background: rgba(0, 0, 0, 0.6);
}

.measurement-panel.light-theme.active {
  color: #10b981;
  border-color: rgba(16, 185, 129, 0.4);
  background: rgba(0, 0, 0, 0.85);
  box-shadow: 0 0 24px rgba(16, 185, 129, 0.2);
}

.measurement-panel.light-theme.measured {
  color: #3b82f6;
  border-color: rgba(59, 130, 246, 0.4);
  background: rgba(0, 0, 0, 0.85);
  box-shadow: 0 0 24px rgba(59, 130, 246, 0.2);
}