html, body {
  margin: 0; padding: 0; height: 100%;
  overflow: hidden;
  /* background: black; */
  color: white;
  font-family: Arial, sans-serif;
}

h1{
  text-align: center;
}

canvas {
  position: fixed !important;
  top: 0; left: 0;
  width: 100% !important;
  height: 100% !important;
  z-index: -1;
  pointer-events: none;
}

#content {
  position: relative;
  display: flex;
  flex-direction: column;
  top: 10em;
  z-index: 1;
  padding: 20px;
  align-items: center;
  justify-content: center;
}
.is-hidden { display: none; }

#ticket {
  color: lightblue;
  top: 10rem;
  position: relative;
  font-size: 1.9rem;
  text-align: center;
  padding: 2em;
  #signature{
    text-align: right;
    font-style: italic;
  }
}

#quantumBtn {
  position: relative;
  padding: 0.4rem 0.7rem;
  font-size: 1.7rem;
  font-weight: bold;
  color: white;
  background: linear-gradient(135deg, #ff00ff24, #00ffff22, #ffcc004a);
  background-size: 300% 300%;
  border: none;
  border-radius: 12px;
  cursor: pointer;
  z-index: 1;
  overflow: hidden;
  transition: transform 0.2s ease, filter 0.3s ease;
  animation: quantumGradient 6s ease infinite;
  box-shadow: 0 0 20px rgba(255,0,255,0.5), 0 0 40px rgba(0,255,255,0.4);
}

#quantumBtn:hover {
  transform: scale(1.05);
  filter: brightness(1.2);
}

#quantumBtn:active {
  transform: scale(0.95);
}

@keyframes quantumGradient {
  0%   { background-position: 0% 50%; }
  50%  { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}