@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700&family=Outfit:wght@400;500;600;700;800&display=swap');
:root{--green:#176b50;--ink:#203d34;--muted:#73847c;--cream:#f8faf6;--line:#e0e8de}*{box-sizing:border-box}body{margin:0;background:var(--cream);color:var(--ink);font-family:'DM Sans',sans-serif}button,input{font:inherit}button{cursor:pointer}header{height:90px;max-width:1240px;margin:auto;display:flex;align-items:center;justify-content:space-between;padding:0 36px;border-bottom:1px solid var(--line)}.brand{text-decoration:none;color:var(--green);display:flex;align-items:center;gap:10px;font:700 27px Outfit}.brand:first-letter{font-size:42px}.thin{font-weight:400}.stats{display:flex;gap:12px}.stats>span{padding:10px 16px;background:white;border:1px solid var(--line);border-radius:14px;font-size:14px}.stats>span:last-child{color:#db655d}main{max-width:1240px;margin:48px auto 30px;padding:0 36px;display:grid;grid-template-columns:300px 1fr;gap:62px}.eyebrow{font-size:11px;font-weight:700;letter-spacing:1.8px;color:var(--muted)}h1{font:600 34px/1.14 Outfit;letter-spacing:-.8px;margin:18px 0}p{color:var(--muted);line-height:1.65;font-size:14px}nav{display:grid;gap:8px;margin:32px 0}.nav{border:0;text-align:left;padding:16px 20px;border-radius:12px;background:transparent;color:var(--muted);font-weight:600}.nav.active{background:#e7efe3;color:var(--green)}.daily{background:white;border:1px solid var(--line);border-radius:18px;padding:22px}.daily>span{font-size:11px;letter-spacing:1px}.daily strong{display:block;margin:15px 0;font-size:18px}.track{height:9px;background:#e9eee6;border-radius:20px;overflow:hidden}.track i{display:block;background:#a8c46a;height:100%;width:0;transition:width .3s}.daily small{display:block;font-size:11px;color:var(--muted);margin-top:12px}.coming{margin-top:30px;color:var(--muted);font-size:10px;letter-spacing:1px;line-height:2}.coming span{letter-spacing:0;font-size:12px}.hero{padding:28px 32px;background:#e8efdc;border-radius:24px;display:flex;justify-content:space-between;align-items:center;position:relative;overflow:hidden}.hero h2{font:600 29px Outfit;margin:8px 0}.hero p{margin:0;max-width:350px;color:#657454}.hero .art{font-size:76px;transform:rotate(-10deg);padding:10px;color:var(--green);font-family:Outfit}.pill{display:inline-block;font-size:10px;letter-spacing:1px;font-weight:700;border-radius:20px;background:#fff9;padding:6px 10px;color:var(--green)}.sectionTitle{display:flex;justify-content:space-between;align-items:center;margin:30px 0 18px}.sectionTitle h2{font:600 23px Outfit;margin:0}.sectionTitle span{font-size:12px;color:var(--muted)}.levels{display:grid;grid-template-columns:1fr 1fr;gap:16px}.card{padding:23px;background:white;border:1px solid var(--line);border-radius:20px;position:relative}.card.current{border:2px solid #7da465;padding:22px}.card.locked{opacity:.58}.card .icon{height:46px;width:46px;display:grid;place-items:center;background:#f1f4e8;border-radius:13px;font:600 23px Outfit;color:var(--green)}.card .tag{position:absolute;right:20px;top:24px;color:var(--muted);font-size:10px;font-weight:700;letter-spacing:.6px}.card h3{font:600 20px Outfit;margin:16px 0 6px}.card p{font-size:12px;margin:0 0 18px}.card button{width:100%;padding:12px;border:0;border-radius:11px;background:#edf3e8;color:var(--green);font-weight:700;font-size:13px}.card.current button,.primary{background:var(--green);color:white;border:0;border-radius:12px;padding:15px 22px;font-weight:700;box-shadow:0 4px 0 #10533e}.card button:disabled{cursor:default}.tip{margin-top:22px;font-size:12px;color:var(--muted);padding:16px;background:#f0f3ec;border-radius:12px}footer{max-width:1168px;margin:35px auto;padding:20px 0;border-top:1px solid var(--line);font-size:11px;color:var(--muted);display:flex;justify-content:space-between}dialog{border:0;border-radius:26px;width:580px;max-width:94vw;padding:26px;color:var(--ink);max-height:94vh}dialog::backdrop{background:#17372acc;backdrop-filter:blur(5px)}.lessonTop{display:flex;align-items:center;gap:15px}.lessonTop button{border:0;background:none;color:var(--muted);font-size:20px}.lessonTop .track{flex:1}.lessonTop span{font-size:12px}.lessonBody{text-align:center;padding:30px 18px 15px}.lessonBody h2{font:600 25px Outfit}.lessonBody #equation{font:600 72px Outfit;margin:18px 0}.sound{border:0;background:#edf3e8;color:var(--green);padding:10px 16px;border-radius:20px;font-size:12px}#timer{height:28px;margin:18px 0;color:#be6f38;font-weight:700}form{text-align:left}form label{font-size:12px;font-weight:600}.answerRow{display:flex;gap:10px;margin:8px 0}input{width:100%;min-width:0;padding:16px;border:2px solid var(--line);border-radius:12px;font-size:22px;outline:none}input:focus{border-color:#7da465}#speechStatus{display:block;color:var(--muted);font-size:11px;min-height:26px}#feedback{padding:12px 0;min-height:42px;font-size:14px;font-weight:600}.primary{width:100%;margin-top:10px}.award{display:flex;align-items:center;gap:18px;margin-bottom:14px}.award .icon{font-size:32px}.award h3{margin:0}.award p{margin:4px 0}.summary{text-align:center;padding:28px}.summary h2{font:600 30px Outfit}.summary .big{font-size:64px}button:focus-visible,a:focus-visible{outline:3px solid #bba35a;outline-offset:3px}@media(max-width:850px){main{grid-template-columns:1fr;gap:25px;margin:25px auto;padding:0 20px}aside h1,aside>p,.coming{display:none}nav{display:flex;margin:15px 0;gap:2px}.nav{padding:12px;flex:1;font-size:12px}.daily{display:none}header{padding:0 20px;height:75px}.brand{font-size:21px}.stats{gap:5px}.stats>span{padding:8px;font-size:11px}.hero{padding:22px}.hero h2{font-size:25px}.hero .art{font-size:50px}footer{margin:20px;display:block;line-height:2}footer span{display:block}}@media(max-width:450px){.levels{grid-template-columns:1fr}.stats>span:first-child{display:none}.lessonBody{padding:20px 0 0}.hero .art{display:none}}

.sound:disabled{opacity:.5;cursor:default}#speechStatus{line-height:1.5}

.practiceModes{display:flex;gap:10px;margin:15px 0}.practiceModes button{width:auto;flex:1;border:1px solid var(--line)}.practiceModes button.selected{background:var(--green);color:white}@media(max-width:600px){nav{flex-wrap:wrap}.nav{flex:1 0 40%}}

.practiceModes{flex-wrap:wrap}.practiceModes button{min-width:100px}@media(max-width:600px){.practiceModes{gap:6px}.practiceModes button{min-width:80px;padding:10px 6px}}

[hidden]{display:none!important}.installBanner{max-width:1168px;margin:20px auto 0;padding:16px 20px;border:1px solid #d6e4cb;background:#edf3e8;border-radius:16px;display:flex;align-items:center;justify-content:space-between;gap:16px}.installBanner strong{display:block;font-size:14px}.installBanner span{display:block;font-size:12px;color:var(--muted);margin-top:3px}.installBanner button,.offlineBox button{border:0;background:var(--green);color:white;padding:12px 18px;border-radius:10px;font-weight:700;white-space:nowrap}.textButton{border:0;background:none;color:var(--green);text-decoration:underline;font-size:11px}.installTop{display:flex;gap:12px;align-items:flex-start}.installTop img{border-radius:12px}.installTop h2{font:600 23px Outfit;margin:0}.installTop p{font-size:12px;margin:5px 0}.installTop>button{margin-left:auto;border:0;background:none;font-size:20px;color:var(--muted)}.installSteps h3,.offlineBox h3{font:600 17px Outfit;margin:18px 0 6px}.installSteps p,.offlineBox p{font-size:13px;margin:0;line-height:1.7}.offlineBox{background:#edf3e8;border-radius:14px;padding:4px 18px 18px;margin-top:18px}.offlineBox button{margin-top:12px;white-space:normal}.offlineBox button:disabled{opacity:.6;cursor:wait}.installNote{font-size:11px;margin-bottom:0}body{padding-bottom:env(safe-area-inset-bottom)}@media(max-width:850px){.installBanner{margin:15px 20px 0}.installBanner span{font-size:11px}.installBanner button{font-size:12px;padding:11px}.installTop h2{font-size:20px}}

.apkDownload{display:inline-block;padding:13px 18px;border-radius:11px;background:var(--green);color:white;text-decoration:none;font-weight:700;text-align:center}.installBanner{flex-wrap:wrap}.installBanner>div{flex:1;min-width:180px}.androidDownload{max-width:660px;margin:45px auto;padding:30px}.androidDownload h1{font-size:36px}.androidDownload>img{border-radius:25px}.androidDownload ol{padding-left:24px;line-height:1.9}.androidDownload .apkDownload{display:block;margin:25px 0 12px;font-size:18px}.androidDownload small{color:var(--muted)}@media(max-width:600px){.installBanner .apkDownload{font-size:12px}.androidDownload{margin:20px auto;padding:24px}}

.lessonResult{margin-top:14px}.lessonResult p{font-size:15px;line-height:1.5;color:#365743}.pauseLesson{display:block;width:100%;min-height:44px;border:1px solid #c5d5c8;background:#edf3e9;color:#284d38;border-radius:12px;margin-top:14px;font-weight:700;padding:12px}.lessonBody{position:relative;z-index:1}#confetti{position:absolute;inset:0;overflow:hidden;pointer-events:none;z-index:2;border-radius:inherit}#confetti i{position:absolute;top:-20px;width:9px;height:15px;border-radius:2px;animation:confettiFall 2.6s ease-out forwards}@keyframes confettiFall{to{transform:translateY(650px) rotate(var(--spin));opacity:0}}@media(prefers-reduced-motion:reduce){#confetti{display:none}}