*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;background:#7ec8ff;color:#1a2b4a;overflow:hidden;height:100dvh}#stage{position:fixed;top:0;right:0;bottom:0;left:0;overflow:hidden;background:linear-gradient(180deg,#8ed6ff,#c8ecff 45%,#fff3c4)}#video{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%;object-fit:cover;transform:scaleX(-1);display:none}#video.on{display:block}#topbar{position:absolute;top:0;left:0;right:0;z-index:20;padding:10px 12px;display:flex;gap:10px;align-items:flex-start;justify-content:space-between;pointer-events:none}#topbar>*{pointer-events:auto}.card{background:#fffffff0;border-radius:20px;box-shadow:0 6px 24px #0000002e;padding:10px 14px}#targetCard{text-align:center;min-width:230px;max-width:62vw}#targetCard 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14px;border-radius:999px;max-width:92vw;pointer-events:none}#stage.immersive #toast{display:block}#stage.paused #bubbles,#stage.paused #handDot,#stage.paused #dwellRing,#stage.paused #celebrate,#stage.paused .confetti{display:none!important}#gearBtn{position:absolute;right:12px;bottom:12px;z-index:35;display:none;width:54px;height:54px;border-radius:50%;font-size:24px;background:#ffffffd9}#stage.immersive #gearBtn{display:block}#bubbles{position:absolute;left:0;right:0;top:clamp(120px,22vh,160px);bottom:50px;z-index:10;display:flex;justify-content:space-evenly;align-items:center;gap:6px;padding:0 8px;pointer-events:none}.bubble{position:relative;flex:0 0 auto;pointer-events:auto;width:min(138px,30vw);height:min(138px,30vw);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:min(78px,18vw);font-weight:900;color:#fff;cursor:pointer;border:5px solid rgba(255,255,255,.95);box-shadow:0 10px 26px #00000047;-webkit-user-select:none;user-select:none;animation:float 3s ease-in-out infinite}.bubble:before{content:"";position:absolute;top:-18px;right:-18px;bottom:-18px;left:-18px;border-radius:50%}.bubble:nth-child(2){animation-delay:.6s;margin-top:80px}.bubble:nth-child(3){animation-delay:1.1s}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-12px)}}.bubble.hovering{animation:none;transform:scale(1.18);filter:brightness(1.12);outline:6px solid #ffe066}#stage.hand-tracking:not(.easy-mode) .bubble.hovering:after{content:"✊";position:absolute;top:-10px;right:-10px;width:44px;height:44px;border-radius:50%;background:#fff;display:flex;align-items:center;justify-content:center;font-size:24px;box-shadow:0 4px 12px #0000004d;animation:badgePulse .8s ease-in-out infinite}@keyframes badgePulse{0%,to{transform:scale(1)}50%{transform:scale(1.25)}}.bubble.hint-pulse{animation:hintPulse .6s ease-in-out 3}@keyframes 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fall{to{transform:translateY(110vh) rotate(360deg);opacity:0}}#controls{position:absolute;left:0;right:0;bottom:0;z-index:20;padding:10px;display:flex;flex-direction:column;gap:8px;align-items:center;background:linear-gradient(180deg,transparent,rgba(0,0,0,.25));transition:transform .35s ease}#stage.immersive #controls{transform:translateY(105%)}.row{display:flex;gap:8px;flex-wrap:wrap;justify-content:center}button{border:0;border-radius:999px;padding:11px 16px;font-size:15px;font-weight:800;cursor:pointer;background:#fff;color:#1a2b4a;box-shadow:0 4px 14px #0003}button.primary{background:#ff5a8a;color:#fff}button.green{background:#22b573;color:#fff}#status{color:#fff;font-weight:700;font-size:14px;text-shadow:0 1px 4px rgba(0,0,0,.5);text-align:center;max-width:92vw}#alphabetStrip{display:flex;gap:4px;overflow-x:auto;max-width:96vw;padding:2px}#alphabetStrip button{padding:7px 9px;font-size:13px;box-shadow:none;background:#ffffffe6}#alphabetStrip button.done{background:#ffe066}#alphabetStrip button.current{background:#ff5a8a;color:#fff}#privacy{background:#00000073;color:#fff;font-size:12px;padding:7px 12px;border-radius:999px;text-align:center}#phonics{font-size:14px;font-weight:700;color:#5b6b8c;margin-top:2px}#countRow{font-size:20px;letter-spacing:2px;line-height:1.4;word-break:break-all;max-width:220px;margin:4px auto 0}#voiceSelect{border:0;border-radius:999px;padding:9px 12px;font-size:14px;font-weight:700;max-width:70vw}@media (max-width:600px){#targetLetter{font-size:48px}#targetCard{min-width:170px;max-width:52vw}#bubbles{bottom:50px}button{padding:9px 12px;font-size:14px}}@media (max-height:520px){#targetLetter{font-size:40px}#targetCard{min-width:150px}#bubbles{top:100px;bottom:16px}}@media (prefers-reduced-motion:reduce){.bubble,.bubble:nth-child(2),.bubble:nth-child(3){animation:none}.confetti,#loadingBox .spin{animation:none}#stage.hand-tracking:not(.easy-mode) .bubble.hovering:after{animation:none}}