* { box-sizing: border-box; margin: 0; padding: 0; -webkit-tap-highlight-color: transparent; }
html, body { height: 100%; background: #11131a; font-family: -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif; color: #fff; }
#wrap { max-width: 420px; margin: 0 auto; position: relative; }
#hud { display: flex; justify-content: space-between; align-items: center; padding: 8px 12px; font-size: 14px; }
#hud .pill { background: #1e2230; padding: 4px 10px; border-radius: 12px; }
#stage { position: relative; }
canvas { display: block; width: 100%; background: #0c0e14; border-radius: 10px; touch-action: none; }
#tutorialBtn { position: absolute; top: 10px; right: 10px; z-index: 5; background: #4d96ff; color: #fff; border: 0; border-radius: 18px; padding: 6px 12px; font-size: 13px; cursor: pointer; }
.overlay { position: fixed; inset: 0; background: rgba(0,0,0,.78); display: none; flex-direction: column; align-items: center; justify-content: center; z-index: 10; padding: 24px; text-align: center; }
.overlay .box { background: #1e2230; border-radius: 14px; padding: 22px; max-width: 320px; }
.overlay h3 { margin-bottom: 12px; font-size: 18px; }
.overlay p { font-size: 15px; line-height: 1.6; margin-bottom: 16px; color: #cfd6e4; white-space: pre-line; }
.overlay button { background: #06d6a0; color: #04221a; border: 0; border-radius: 10px; padding: 10px 18px; font-size: 15px; cursor: pointer; margin: 4px; }
.overlay .ghost { background: #2a2f40; color: #cfd6e4; }
#adOverlay .box { background: #222; }
#adCount { font-size: 40px; color: #ffd166; }