/* 🌍 Base */
body {
  margin: 0;
  padding: 0;
  overflow: hidden;
  font-family: monospace, sans-serif;
  background-color: black;
}

#background-canvas,
#three-canvas {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 0;
  width: 100vw;
  height: 100vh;
  display: block;
}

#three-canvas {
  z-index: 1;
}
 canvas {
      display: block;
    }
    #lens {
      position: absolute;
      top: 0; left: 0;
      z-index: 2;
      pointer-events: none;
    }
/* 🔥 Pulsante ignition */
#igniteButton {
  position: absolute;
  top: 20px;
  right: 20px;
  width: 70px;
  height: 70px;
  background: radial-gradient(circle at 30% 30%, #ff5500, #990000);
  color: white;
  border: none;
  font-size: 14px;
  font-weight: bold;
  letter-spacing: 0.5px;
  font-family: monospace, sans-serif;
  border-radius: 50%;
  cursor: pointer;
  z-index: 2;
  box-shadow: 0 0 15px rgba(255, 0, 0, 0.6);
  transition: opacity 1s ease, transform 0.3s ease;
  text-align: center;
  line-height: 70px;
}

#igniteButton:hover {
  transform: scale(1.1);
}

#igniteButton.fade-out {
  opacity: 0;
  pointer-events: none;
}

@media screen and (max-width: 768px) {
  #igniteButton {
    width: 60px;
    height: 60px;
    font-size: 12px;
    line-height: 60px;
  }
}