.powerup-cell {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 6px;
  min-width: 0;
  max-width: 120px;
}

.powerup-label {
  font-family: 'Rajdhani', sans-serif;
  font-size: 9px; font-weight: 700;
  letter-spacing: 2px;
  color: rgba(0,229,255,0.5);
  text-transform: uppercase;
  flex-shrink: 0; line-height: 1;
  white-space: nowrap;
}

#powerup-container {
  flex: 1; height: 8px;
  background: rgba(0,0,0,0.4);
  border-radius: 4px; overflow: hidden;
  border: 1px solid rgba(255,255,255,0.05);
}

#powerup-fill {
  width: 0%; height: 100%;
  background: linear-gradient(90deg, #FF4081, #00E5FF);
  border-radius: 3px;
  transition: width 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
  box-shadow: 0 0 8px #00E5FF;
  position: relative;
  overflow: hidden;
}

/* Subtle electricity shimmer along the power bar fill */
#powerup-fill::after {
  content: '';
  position: absolute;
  top: -2px; bottom: -2px;
  left: 0; right: 0;
  background: linear-gradient(
    90deg,
    transparent 0%,
    rgba(255,255,255,0.15) 10%,
    transparent 20%,
    rgba(0,229,255,0.2) 35%,
    transparent 45%,
    rgba(255,255,255,0.1) 55%,
    transparent 65%,
    rgba(0,229,255,0.25) 80%,
    transparent 90%,
    rgba(255,255,255,0.1) 100%
  );
  animation: powerBarSparkShimmer 2.5s linear infinite;
  pointer-events: none;
}

/* Small spark dots that flicker along the bar */
#powerup-fill::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 0; right: 0;
  height: 2px;
  transform: translateY(-50%);
  background: repeating-linear-gradient(
    90deg,
    transparent 0px,
    transparent 8px,
    rgba(255,255,255,0.4) 9px,
    transparent 10px,
    transparent 18px,
    rgba(0,229,255,0.5) 19px,
    transparent 20px
  );
  animation: powerBarSparkDots 1.8s linear infinite;
  pointer-events: none;
}