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

html, body {
  height: 100%;
  background: #070d16;
  color: #dCE6F2;
  font-family: "Avenir Next", "Segoe UI", system-ui, -apple-system, sans-serif;
  overflow: hidden;
}

#app {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
}

#stage {
  position: relative;
  width: min(100%, 1100px);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}

canvas#game {
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  display: block;
  border-radius: 14px;
  background: #0a1626;
  box-shadow: 0 24px 70px rgba(0, 0, 0, .65), 0 0 0 1px rgba(150, 200, 255, .12);
  image-rendering: auto;
  touch-action: manipulation;
  cursor: pointer;
}

#hint {
  font-size: 13px;
  letter-spacing: .04em;
  color: #64809f;
  text-align: center;
  user-select: none;
}