:root{--bg: #10131a;--panel: #1b2030;--accent: #4f9dff;--accent-2: #ffd24f;--text: #e8ecf4;--muted: #8c93a8}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}html,body{margin:0;height:100%;background:var(--bg);color:var(--text);font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;overflow:hidden;user-select:none}#app{position:relative;width:100vw;height:100vh;height:100dvh;display:flex;align-items:center;justify-content:center}canvas{display:block;background:var(--bg);touch-action:none}.overlay{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;background:#080a10d1;backdrop-filter:blur(2px);text-align:center;padding:24px}.overlay h1{font-size:clamp(28px,8vw,56px);margin:0 0 8px}.overlay p{color:var(--muted);margin:0}.btn{appearance:none;border:none;border-radius:12px;padding:14px 28px;font-size:18px;font-weight:600;color:#0b0e14;background:var(--accent);cursor:pointer;min-width:200px;transition:transform .08s ease,filter .15s ease}.btn:hover{filter:brightness(1.08)}.btn:active{transform:scale(.97)}.btn.secondary{background:var(--panel);color:var(--text)}.btn.reward{background:var(--accent-2)}.hud{position:absolute;top:max(12px,env(safe-area-inset-top));left:0;right:0;display:flex;justify-content:center;gap:24px;font-size:20px;font-weight:700;pointer-events:none}