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

body {
  background: #111;
  color: #fff;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  overflow: hidden;
}

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

#canvas {
  max-width: 100%;
  max-height: 100%;
}

#overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 16px;
  background: #111;
  z-index: 10;
  transition: opacity 0.3s;
}

#splash {
  max-width: 90%;
  max-height: 60%;
  object-fit: contain;
}

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

#startBtn {
  padding: 16px 32px;
  font-size: 1.2rem;
  font-weight: bold;
  border: none;
  border-radius: 8px;
  background: #4CAF50;
  color: #fff;
  cursor: pointer;
  transition: background 0.2s;
}

#startBtn:hover {
  background: #388E3C;
}

#status {
  font-size: 0.9rem;
  opacity: 0.8;
}