body {
  margin: 0;
  padding: 0;
  background-color: #04040a;
  color: #fff;
  font-family: monospace, sans-serif;
  overflow: hidden;
  user-select: none;
}

#app-root {
  width: 100vw;
  height: 100vh;
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

#visual-canvas {
  width: 100%;
  height: 100%;
  display: block;
}

.overlay-text {
  position: absolute;
  left: 0;
  width: 100%;
  text-align: center;
  pointer-events: none;
  z-index: 10;
  letter-spacing: 12px;
  transition: opacity 2s ease-in-out;
}

.top-title {
  top: 8%;
  font-size: 24px;
  color: rgba(255, 255, 255, 0.9);
  text-shadow: 0 0 10px rgba(255, 255, 255, 0.3);
}

.bottom-title {
  bottom: 8%;
  font-size: 20px;
  color: rgba(200, 200, 255, 0.8);
  letter-spacing: 16px;
}

#start-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.85);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 100;
  transition: opacity 1s ease-out;
}

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

#start-btn {
  background-color: transparent;
  color: #0ff;
  border: 1px solid #0ff;
  padding: 20px 40px;
  font-size: 18px;
  font-family: monospace;
  letter-spacing: 4px;
  cursor: pointer;
  box-shadow: 0 0 15px rgba(0, 255, 255, 0.2), inset 0 0 15px rgba(0, 255, 255, 0.2);
  transition: all 0.3s;
}

#start-btn:hover {
  background-color: rgba(0, 255, 255, 0.1);
  box-shadow: 0 0 25px rgba(0, 255, 255, 0.4), inset 0 0 25px rgba(0, 255, 255, 0.4);
  text-shadow: 0 0 8px #0ff;
}