/* Outer wrapper */
.battery-container {
  position: relative;
  display: flex;
  justify-content: center;
  padding: 40px;
}

/* Battery Body */
.battery {
  position: relative;
  width: 65px;
  height: 140px;
  background: white;
  border: 4px solid #94a3b8;
  border-radius: 15px;
  display: flex;
  align-items: flex-end;
  padding: 5px;
  overflow: hidden;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
}

/* Battery Cap */
.battery-cap {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  width: 26px;
  height: 10px;
  background: #94a3b8;
  border-radius: 3px 3px 0 0;
}

/* Liquid Fill (Light Mode Default) */
.liquid-fill {
  width: 100%;
  height: 0%;
  background: #3b82f6; /* blue */
  border-radius: 10px;
  position: relative;
  overflow: hidden;
  box-shadow: 0 0 15px rgba(59, 130, 246, 0.5);
  animation: charge 4s linear infinite;
}

/* Bubbles */
.bubble {
  position: absolute;
  background: rgba(255, 255, 255, 0.4);
  border-radius: 50%;
  bottom: 5px;
  animation: bubble-rise 2s ease-in infinite;
}

.bubble1 {
  width: 10px;
  height: 10px;
  left: 6px;
}

.bubble2 {
  width: 14px;
  height: 14px;
  right: 8px;
  animation-delay: 0.5s;
  animation-duration: 2.5s;
}

.bubble3 {
  width: 8px;
  height: 8px;
  left: 22px;
  animation-delay: 1s;
  animation-duration: 1.8s;
}

/* Glossy highlight */
.battery-glow {
  position: absolute;
  top: 10px;
  right: 8px;
  width: 10px;
  height: 120px;
  background: rgba(255, 255, 255, 0.25);
  border-radius: 10px;
  pointer-events: none;
}

/* Charge animation */
@keyframes charge {
  0% {
    height: 0%;
    filter: hue-rotate(0deg);
  }
  50% {
    height: 50%;
  }
  90% {
    height: 100%;
    filter: hue-rotate(45deg);
  }
  95% {
    height: 100%;
    opacity: 1;
  }
  100% {
    height: 100%;
    opacity: 0;
  }
}

/* Bubble rise animation */
@keyframes bubble-rise {
  0% {
    transform: translateY(0);
    opacity: 0;
  }
  20% {
    opacity: 1;
  }
  100% {
    transform: translateY(-80px);
    opacity: 0;
  }
}

/* ------------------------------------------------ */
/* 🔥 DARK MODE SUPPORT */
/* ------------------------------------------------ */

@media (prefers-color-scheme: dark) {
  .battery {
    background: #1e293b; /* slate-800 */
    border-color: #475569; /* slate-600 */
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.5);
  }

  .battery-cap {
    background: #475569;
  }

  .liquid-fill {
    background: #84cc16; /* lime-500 */
    box-shadow: 0 0 20px rgba(132, 204, 22, 0.6);
  }

  .battery-glow {
    background: rgba(255, 255, 255, 0.1);
  }
}