* { margin: 0; padding: 0; box-sizing: border-box; -webkit-tap-highlight-color: transparent; }

html, body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: #7ecbff;
  font-family: 'Baloo Bhaijaan 2', 'Fredoka', sans-serif;
  touch-action: none;
  user-select: none;
  -webkit-user-select: none;
}

#canvas {
  display: block;
  position: fixed;
  top: 0;
  left: 0;
  cursor: pointer;
}

#controls {
  position: fixed;
  bottom: 14px;
  left: 14px;
  z-index: 10;
}

#muteBtn {
  font-size: 24px;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  border: 4px solid #3d2b1f;
  background: rgba(255, 255, 255, 0.9);
  cursor: pointer;
  box-shadow: 0 3px 0 #3d2b1f;
  transition: transform 0.08s, box-shadow 0.08s;
  line-height: 1;
}
#muteBtn:active {
  transform: translateY(3px);
  box-shadow: 0 0 0 #3d2b1f;
}

#footer {
  position: fixed;
  bottom: 10px;
  right: 14px;
  z-index: 10;
  font-size: 12px;
}
#footer a {
  color: #3d2b1f;
  background: rgba(255, 255, 255, 0.75);
  padding: 5px 12px;
  border-radius: 14px;
  text-decoration: none;
  font-weight: 600;
  border: 2px solid rgba(61, 43, 31, 0.4);
}
#footer a:active { transform: translateY(1px); }
</parameter>
</invoke>