#matrix-canvas {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  z-index: -2;
  background: radial-gradient(circle at 50% 20%, rgba(0, 255, 170, 0.06), transparent 55%);
  filter: drop-shadow(0 0 12px rgba(0, 255, 170, 0.25));
}

.cursor-glow {
  position: fixed;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  pointer-events: none;
  mix-blend-mode: screen;
  background: radial-gradient(circle at center,
      rgba(255, 255, 255, 0) 0%,
      rgba(255, 255, 255, 0) 22%,
      rgba(247, 197, 82, 0.12) 38%,
      rgba(0, 255, 170, 0.16) 62%,
      rgba(111, 98, 255, 0.14) 85%,
      transparent 100%);
  box-shadow:
    0 0 25px rgba(247, 197, 82, 0.28),
    0 0 50px rgba(0, 255, 170, 0.28),
    0 0 80px rgba(111, 98, 255, 0.24);
  transition: transform 0.08s linear;
  transform: translate(-50%, -50%);
  z-index: 4;
}

.cursor-glow::before {
  content: "";
  position: absolute;
  inset: 10%;
  border-radius: 50%;
  border: 1px solid rgba(247, 197, 82, 0.32);
  box-shadow:
    0 0 24px rgba(247, 197, 82, 0.35),
    0 0 34px rgba(0, 255, 170, 0.25);
  opacity: 0.9;
}

.cursor-glow::after {
  content: "";
  position: absolute;
  inset: 32%;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.75), transparent 70%);
  filter: blur(10px);
  opacity: 0.55;
}

.spark {
  position: fixed;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  pointer-events: none;
  background: radial-gradient(circle, #f7c552 0%, #66ffd2 60%, transparent 75%);
  box-shadow: 0 0 14px rgba(247, 197, 82, 0.85), 0 0 20px rgba(102, 255, 210, 0.55);
  animation: spark-fade 0.9s ease-out forwards;
  mix-blend-mode: screen;
  z-index: 3;
}

@keyframes spark-fade {
  0% {
    opacity: 1;
    transform: scale(1) translate3d(0, 0, 0);
  }
  50% {
    opacity: 0.85;
    transform: scale(1.1) translate3d(0, -4px, 0);
  }
  100% {
    opacity: 0;
    transform: scale(0.65) translate3d(0, -18px, 0);
  }
}