:root {
  color-scheme: light;
  --bg: #fff;
  --ink: #1c1a18;
}

* {
  box-sizing: border-box;
}

html,
body {
  min-height: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family:
    ui-rounded,
    "Apple SD Gothic Neo",
    "Malgun Gothic",
    system-ui,
    sans-serif;
  overflow: hidden;
}

.prompt {
  position: fixed;
  z-index: 2;
  top: max(14px, env(safe-area-inset-top));
  left: 50%;
  width: min(92vw, 520px);
  margin: 0;
  translate: -50% 0;
  color: rgba(28, 26, 24, 0.58);
  font-size: clamp(13px, 2.6vw, 16px);
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: 0;
  text-align: center;
  pointer-events: none;
}

.stage {
  min-height: 100svh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
}

canvas {
  display: block;
  width: 100vw;
  height: 100svh;
  cursor: default;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
  user-select: none;
}