:root{--bg:#f1fff7;--ink:#0a3526;--accent:#0a5a3a;--accent-2:#dff7ea}*{box-sizing:border-box}html,body{height:100%}body{background:var(--bg);color:var(--ink);-webkit-tap-highlight-color:transparent;margin:0;font-family:Rubik,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif}#game-root{place-items:center;display:grid;position:fixed;inset:0;overflow:hidden}#game{touch-action:none;background:linear-gradient(#eafff2 0%,#f7fff8 60%,#fff 100%);width:100vw;height:100vh;display:block}#hud{pointer-events:auto;-webkit-user-select:none;user-select:none;justify-content:space-between;align-items:center;display:flex;position:fixed;top:12px;left:12px;right:12px}#score{background:var(--accent-2);border-radius:10px;padding:6px 10px;font-size:20px;font-weight:700}#highScore{margin-left:auto;margin-right:8px;font-weight:700}#pauseBtn{background:var(--accent);color:#fff;border:none;border-radius:10px;width:40px;height:40px;font-size:18px}#overlay{-webkit-backdrop-filter:saturate(1.1)blur(2px);backdrop-filter:saturate(1.1)blur(2px);background:#0a352633;place-items:center;display:grid;position:fixed;inset:0}#overlay.hidden{display:none}.panel{border:2px solid var(--accent-2);text-align:center;background:#fff;border-radius:16px;width:min(92vw,460px);padding:18px 18px 14px;box-shadow:0 10px 30px #0a35261a}.panel h2{margin:4px 0 8px}.tips{opacity:.8;margin:8px 0 14px;font-size:14px}.primary{background:var(--accent);color:#fff;border:none;border-radius:12px;padding:10px 16px;font-size:16px;font-weight:700}@media (width>=800px){#score{font-size:22px}}