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button:focus-visible{outline-offset:3px;outline:4px solid #0c95b7}.game-header{background:#f3fbff;border-bottom:2px solid #e3f0f8;align-items:center;gap:12px;padding:20px 25px;display:flex}.game-mark{font-size:36px}.game-heading{flex-direction:column;flex:1;line-height:1.45;display:flex}.game-heading strong{font-size:21px;font-weight:900}.game-heading span{color:#61738a;font-size:13px}.game-sound{background:#fff;border:2px solid #dce7ed;border-radius:15px;min-height:48px;padding:12px 14px;font-size:14px;font-weight:800}.game-tabs{gap:10px;padding:16px 20px 0;display:flex}.game-tab{color:#5b6980;background:#f0f2f7;border:2px solid #0000;border-radius:17px 17px 9px 9px;flex:1;min-height:56px;font-size:16px;font-weight:900}.game-tab.active{color:#65400a;background:#ffde8a;border-color:#f6c957}.game-stage{padding:18px 28px 28px}.game-topline{justify-content:space-between;align-items:center;gap:12px;margin:0 0 16px;display:flex}.game-instruction{color:#607087;font-size:17px;font-weight:800}.game-stars{background:#fff4d1;border-radius:20px;flex-shrink:0;padding:8px 14px;font-weight:900}.number-feature{grid-template-columns:minmax(180px,40%) 1fr;gap:22px;min-height:305px;display:grid}.big-number{color:#135c85;text-shadow:4px 7px #ffffffa9;background:linear-gradient(145deg,#b3ecff,#85d6f3);border:4px solid #76cce9;border-radius:24px;font-size:clamp(130px,22vw,230px);font-weight:900;line-height:1}.number-details{flex-direction:column;justify-content:center;align-items:flex-start;gap:14px;padding:20px 0;display:flex}.number-details>strong{font-size:clamp(37px,5vw,58px);font-weight:900;line-height:1.1}.replay-button{color:#1e6782;background:#e8f8ff;border-radius:14px;padding:12px 20px;font-size:16px;font-weight:800}.count-objects{flex-wrap:wrap;align-content:center;align-items:center;gap:8px;min-height:50px;display:flex}.count-objects span{font-size:clamp(25px,4vw,40px)}.number-fact{color:#6c788a;font-size:15px}.number-tiles{grid-template-columns:repeat(10,minmax(0,1fr));gap:8px;margin-top:24px;display:grid}.number-tiles button{color:#4a5870;background:#f1f5f9;border:3px solid #0000;border-radius:14px;min-width:0;min-height:65px;font-size:25px;font-weight:900}.number-tiles button.active{color:#925115;background:#ffebc2;border-color:#f9bd51;transform:translateY(-2px)}.step-row{justify-content:space-between;gap:14px;margin-top:18px;display:flex}.quiet-button,.primary-game-button{border-radius:15px;min-height:53px;padding:12px 22px;font-size:16px;font-weight:900}.quiet-button{color:#4d5a71;background:#f2f4f7}.primary-game-button{color:#fff;background:#fc8f64;box-shadow:0 5px #e56e42}.quiz-panel{text-align:center;min-height:380px}.quiz-panel[hidden],.learn-panel[hidden],.quiz-next[hidden]{display:none!important}.quiz-prompt{margin:12px 0 24px;font-size:clamp(24px,4vw,33px);font-weight:900}.quiz-pictures{background:#f3fbff;border-radius:24px;flex-wrap:wrap;justify-content:center;align-items:center;gap:10px;min-height:145px;margin-bottom:22px;padding:20px;display:flex}.quiz-pictures span{font-size:clamp(33px,6vw,54px)}.quiz-pictures .empty-spot{color:#667c90;font-size:19px;font-weight:800}.quiz-pictures .audio-question{flex-direction:column;align-items:center;gap:12px;display:flex}.audio-question button{color:#165878;background:#b4eafb;border-radius:20px;min-height:76px;padding:15px 28px;font-size:24px;font-weight:900}.audio-question p{color:#61758b;font-size:14px}.quiz-choices{grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;display:grid}.quiz-choice{color:#3e576a;background:#fff6e7;border:3px solid #e1e9ee;border-radius:20px;min-height:96px;font-size:clamp(34px,7vw,57px);font-weight:900}.quiz-choice.correct{background:#d5f8d9;border-color:#75cb83}.quiz-choice.wrong{background:#ffe2df;border-color:#f3aaa4}.quiz-choice:disabled{opacity:.83;cursor:default}.quiz-feedback{color:#208a55;min-height:36px;margin:19px 0 8px;font-size:20px;font-weight:900}.quiz-feedback.try-again{color:#b45e32}.game-footer{color:#62748b;background:#fbfcff;border-top:1px solid #e5edf4;flex-wrap:wrap;justify-content:space-between;gap:8px;padding:16px 25px;font-size:12px;display:flex}.number-content{color:#526076;max-width:900px;margin:65px auto 20px;line-height:1.75}.number-content section{margin-bottom:42px}.number-content h2{color:#26354b;margin-bottom:14px;font-size:clamp(25px,3.8vw,32px);font-weight:900;line-height:1.3}.number-content h3{color:#2c3b4e;margin:20px 0 6px;font-size:19px;font-weight:900}.number-content p{margin:0 0 13px}.number-how-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:15px;margin-top:22px;display:grid}.number-how-grid article{background:#f4f9ff;border:1px solid #e2edf7;border-radius:18px;padding:20px}.number-how-grid article>div{font-size:32px}.number-how-grid h3{margin:12px 0 8px}.number-story{background:#fff4df;border-radius:22px;align-items:flex-start;gap:19px;padding:27px;display:flex}.number-story>div:first-child{font-size:34px}.number-story a{color:#155f9a;font-weight:900;text-decoration:underline}.audio-credit{color:#718096;max-width:900px;margin:35px auto 0;font-size:12px;line-height:1.6}.audio-credit a{text-decoration:underline}@media (width<=680px){.number-page{padding:20px 10px 65px}.number-intro{margin-bottom:24px}.number-intro h1{letter-spacing:-1px}.numbers-app{border-width:2px;border-radius:23px}.game-header{gap:9px;padding:12px}.game-mark{font-size:29px}.game-heading strong{font-size:17px}.game-heading span{font-size:11px}.game-sound{padding:8px;font-size:12px}.game-tabs{gap:5px;padding:10px 10px 0}.game-tab{min-height:53px;font-size:14px}.game-stage{padding:14px 12px 25px}.game-instruction{font-size:14px}.number-feature{flex-direction:column;gap:5px;display:flex}.big-number{height:235px;min-height:235px;font-size:175px}.number-details{text-align:center;align-items:center;gap:8px;padding:9px 0}.number-details>strong{font-size:38px}.number-tiles{grid-template-columns:repeat(5,minmax(0,1fr));gap:6px;margin-top:16px}.number-tiles button{min-height:55px;font-size:25px}.quiet-button,.primary-game-button{padding:12px;font-size:14px}.quiz-choices{gap:6px}.quiz-choice{border-radius:14px;min-height:78px}.game-footer{padding:12px}.number-how-grid{grid-template-columns:1fr}.number-story{padding:20px}}@media (prefers-reduced-motion:reduce){.number-tiles button.active{transform:none}}