.flam-checkbox-holder {
  display: inline-block;
  margin: 30px;
  perspective: 1000px;
}

.flam-trigger {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.flam-switch {
  position: relative;
  display: flex;
  align-items: center;
  gap: 15px;
  cursor: pointer;
}

.flam-cube {
  width: 60px;
  height: 60px;
  position: relative;
  transform-style: preserve-3d;
  transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
  background: linear-gradient(145deg, #0f0020, #070a15);
  border: 2px solid #7d00ff;
  border-radius: 8px;
  box-shadow:
    inset 4px 4px 8px rgba(0, 0, 0, 0.7),
    inset -4px -4px 8px rgba(80, 0, 150, 0.3),
    0 0 15px rgba(125, 0, 255, 0.5);
}

.flam-indicator {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0);
  color: white;
  font-size: 24px;
  font-weight: bold;
  opacity: 0;
  transition: all 0.3s ease;
  z-index: 2;
  text-shadow: 0 0 10px #ff5500;
}

.flam-aura {
  position: absolute;
  top: -10px;
  left: -10px;
  right: -10px;
  bottom: -10px;
  border-radius: 12px;
  background: radial-gradient(circle, rgba(125, 0, 255, 0.3), transparent 70%);
  filter: blur(12px);
  opacity: 0;
  transition: opacity 0.3s ease;
  z-index: -1;
}

.flam-fire-container {
  position: absolute;
  bottom: -20px;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  height: 80px;
  opacity: 0;
  transition: opacity 0.3s;
  z-index: 1;
  pointer-events: none;
}

.flam-flame {
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 40px;
  height: 0;
  background: linear-gradient(to top, transparent, #ff4500 40%, #ffcc00);
  border-radius: 50% 50% 20% 20%;
  filter: blur(6px);
  animation:
    flame-expand 0.5s forwards,
    flame-flicker 1.5s infinite alternate 0.5s;
}

.flam-flame::before {
  content: "";
  position: absolute;
  top: -15px;
  left: 50%;
  transform: translateX(-50%);
  width: 30px;
  height: 0;
  background: linear-gradient(to top, transparent 30%, #ffcc00 70%, white);
  border-radius: 50% 50% 20% 20%;
  filter: blur(5px);
  animation: flame-inner-expand 0.5s 0.1s forwards;
}

.flam-sparks {
  position: absolute;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity 0.3s;
}

.flam-spark {
  position: absolute;
  background: #ffcc00;
  border-radius: 50%;
  filter: blur(1px);
  animation: spark-launch 1s forwards;
}

.flam-switch:hover .flam-cube {
  transform: translateZ(20px) scale(1.05);
  box-shadow:
    inset 4px 4px 8px rgba(0, 0, 0, 0.7),
    inset -4px -4px 8px rgba(80, 0, 150, 0.4),
    0 0 20px rgba(125, 0, 255, 0.8);
}

.flam-switch:hover {
  color: #00f7ff;
  text-shadow: 0 0 12px rgba(0, 247, 255, 0.9);
}

.flam-switch:hover .flam-aura {
  opacity: 0.7;
}

.flam-trigger:checked + .flam-switch .flam-cube {
  background: linear-gradient(145deg, #ff3000, #0f0020);
  border-color: #ff5500;
  box-shadow:
    inset 4px 4px 8px rgba(0, 0, 0, 0.7),
    inset -4px -4px 8px rgba(255, 80, 0, 0.3),
    0 0 25px rgba(255, 80, 0, 0.8);
  animation: cube-shake 0.1s ease;
}

.flam-trigger:checked + .flam-switch .flam-indicator {
  transform: translate(-50%, -50%) scale(1);
  opacity: 1;
  animation: indicator-pop 0.4s ease-out;
}

.flam-trigger:checked + .flam-switch {
  color: #ff5500;
  text-shadow: 0 0 12px rgba(255, 100, 0, 0.9);
}

.flam-trigger:checked + .flam-switch .flam-aura {
  background: radial-gradient(circle, rgba(255, 100, 0, 0.5), transparent 70%);
  opacity: 1;
}

.flam-trigger:checked + .flam-switch .flam-fire-container,
.flam-trigger:checked + .flam-switch .flam-sparks {
  opacity: 1;
}

@keyframes flame-expand {
  0% {
    height: 0;
  }
  100% {
    height: 60px;
  }
}

@keyframes flame-inner-expand {
  0% {
    height: 0;
  }
  100% {
    height: 50px;
  }
}

@keyframes flame-flicker {
  0%,
  100% {
    height: 60px;
    opacity: 1;
  }
  50% {
    height: 65px;
    opacity: 0.9;
  }
}

@keyframes spark-launch {
  0% {
    transform: translate(0, 0) scale(1);
    opacity: 1;
  }
  100% {
    transform: translate(
        calc(var(--spark-offset-x) * 1px),
        calc(var(--spark-offset-y) * -1px)
      )
      scale(0);
    opacity: 0;
  }
}