* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  overflow: hidden;
  background: #000;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

#webcam {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  object-fit: cover;
  transform: scaleX(-1); /* Mirror the webcam */
  z-index: 0;
}

#three-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: 1;
  pointer-events: none;
}

#three-container canvas {
  display: block;
}

#overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.7);
  transition: opacity 0.5s ease;
}

#overlay.hidden {
  opacity: 0;
  pointer-events: none;
}

#loading {
  text-align: center;
  color: #d4af37;
  font-size: 1.5rem;
}

#instructions {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  background: rgba(0, 0, 0, 0.6);
  color: #d4af37;
  padding: 0.75rem 1.5rem;
  border-radius: 8px;
  font-size: 1.1rem;
  border: 1px solid rgba(212, 175, 55, 0.3);
  transition: opacity 1s ease;
}

#instructions.hidden {
  opacity: 0;
  pointer-events: none;
}