@import url('https://fonts.googleapis.com/css2?family=Nunito:wght@600;700;800;900&family=Noto+Sans+SC:wght@400;500;600;700;800;900&display=swap');
:root{font-family:'Nunito','Noto Sans SC',system-ui,sans-serif;color:#263d48;background:#f8f1df;font-synthesis:none}*{box-sizing:border-box}body{margin:0;min-width:320px}button,input,select{font:inherit}button{cursor:pointer}button:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid #f7a742;outline-offset:3px}.app-shell{max-width:1250px;min-height:100dvh;margin:auto;padding:0 32px 112px}.topbar{height:86px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid #e9dec7}.brand{display:flex;gap:12px;align-items:center;border:0;background:none;color:#2c4f5b;font-size:23px;font-weight:900;padding:4px}.brand-mark{display:grid;place-items:center;width:47px;height:47px;border-radius:14px;background:#ef725b;color:white;transform:rotate(-8deg);box-shadow:0 4px 0 #c95444}.top-actions{display:flex;align-items:center;gap:18px}.coin,.mini-score{background:#fff8e8;border:2px solid #f0dca7;border-radius:18px;padding:9px 17px;color:#8d6320;font-weight:800;font-size:17px}.coin span{color:#f0ad38}.icon-btn{width:48px;height:48px;border:0;border-radius:15px;background:#fff;font-size:22px;box-shadow:0 4px 0 #e4dac7}.screen{display:none;animation:fade .2s ease}.screen.active{display:block}@keyframes fade{from{opacity:.4;transform:translateY(8px)}to{opacity:1;transform:none}}.hero{margin-top:26px;min-height:370px;border-radius:31px;background:#dff2e9;display:grid;grid-template-columns:56% 44%;overflow:hidden;position:relative;box-shadow:0 8px 0 #e3ddc8}.hero-copy{padding:45px 0 40px 56px;position:relative;z-index:2}.eyebrow{font-size:14px;font-weight:900;letter-spacing:.12em;color:#2f8b80}.hero h1{font-size:clamp(35px,4vw,58px);line-height:1.18;margin:16px 0 13px;letter-spacing:-.04em;color:#2d5965}.hero h1 em{font-style:normal;color:#ed715b}.hero p{font-size:17px;color:#647a79;margin:0 0 29px}.hero-actions{display:flex;gap:13px;flex-wrap:wrap}.btn{border:0;border-radius:17px;padding:15px 25px;font-size:17px;font-weight:900;min-height:55px;transition:transform .15s,filter .15s;display:inline-flex;align-items:center;justify-content:center;gap:7px}.btn:hover{filter:brightness(1.04);transform:translateY(-2px)}.btn:active{transform:translateY(2px)}.btn-primary{background:#ef745e;color:#fff;box-shadow:0 5px 0 #c85a48}.btn-white{background:#fff;color:#3a6e73;box-shadow:0 5px 0 #cfe1d8}.btn-soft{background:#e6f3f4;color:#306b76;box-shadow:0 5px 0 #c7dfe0}.btn-success{background:#5aa989;color:#fff;box-shadow:0 5px 0 #3a826a}.btn-coral{background:#fff0e9;color:#ca624e;box-shadow:0 5px 0 #edcfc2}.hero-art{position:relative;min-height:350px}.sun{position:absolute;right:58px;top:25px;font-size:73px;color:#f8c353;z-index:1}.little-cloud{position:absolute;left:5%;top:40px;color:white;font-size:89px}.hill{position:absolute;border-radius:50% 50% 0 0}.hill-back{width:520px;height:230px;background:#91cfac;bottom:-72px;right:-150px;transform:rotate(-11deg)}.hill-front{width:490px;height:190px;background:#64b994;bottom:-100px;right:75px;transform:rotate(13deg)}.hero-board{position:absolute;left:20%;top:33%;display:flex;gap:12px;transform:rotate(-6deg)}.hero-board span{display:grid;place-items:center;width:82px;height:100px;border-radius:12px;background:#fffdf4;color:#355e68;font-size:54px;font-weight:800;box-shadow:0 9px 0 #c9ddcf,0 12px 22px #5fa37e55}.hero-board span:nth-child(2){transform:translateY(-24px) rotate(9deg)}.hero-board span:nth-child(3){transform:translateY(11px) rotate(12deg)}.mascot{position:absolute;z-index:2;bottom:15px;right:26%;width:82px;height:76px;border-radius:47% 47% 40% 40%;background:#f7bd54;color:#6f5439;display:grid;place-items:center;font-size:25px;font-weight:900;box-shadow:0 8px 0 #d89842}.section-heading{margin:42px 0 16px;display:flex;justify-content:space-between;align-items:end;gap:15px}.section-heading h2{font-size:25px;margin:5px 0 0;color:#304f59}.count-pill{font-weight:900;color:#3d8881;background:#e4f3e9;padding:10px 15px;border-radius:20px;white-space:nowrap}.progress-track{height:17px;background:#e7dfd1;border-radius:99px;overflow:hidden}.progress-track div{height:100%;width:0;background:linear-gradient(90deg,#74c8a2,#e8bc52);border-radius:99px;transition:width .3s}.home-cards{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:27px}.feature-card{border:0;border-radius:23px;padding:25px;display:flex;align-items:center;gap:20px;text-align:left;color:#2c5360;min-height:127px}.feature-card.blue{background:#dcecf3}.feature-card.peach{background:#fce4d5}.feature-card strong,.feature-card small{display:block}.feature-card strong{font-size:24px}.feature-card small{font-size:15px;color:#5d7780;margin-top:7px}.card-icon{display:grid;place-items:center;background:#fff;width:68px;height:68px;border-radius:20px;font-size:32px;flex:none}.arrow{margin-left:auto;font-size:30px}.tip-card{margin-top:24px;background:#fff9ea;border:1px solid #eadfca;border-radius:18px;padding:17px 21px;display:flex;gap:12px;color:#6e745f;font-size:15px}.tip-card>span:first-child{font-size:22px}.bottom-nav{position:fixed;z-index:10;bottom:0;left:50%;transform:translateX(-50%);width:min(100%,1250px);background:#fffdf6;border-top:1px solid #eee4d6;display:flex;justify-content:center;gap:15px;padding:9px 20px max(9px,env(safe-area-inset-bottom));box-shadow:0 -4px 20px #5c59400d}.nav-item{border:0;background:transparent;color:#80929a;min-width:110px;padding:5px 15px;border-radius:15px;display:grid;gap:2px;font-size:14px}.nav-item span{font-size:23px}.nav-item.active{background:#e2f1e8;color:#34786b}.play-header{display:flex;align-items:center;justify-content:space-between;margin:25px 0 19px}.text-back,.quiet-btn{border:0;background:none;color:#527c80;font-weight:800;font-size:16px;padding:10px}.session-title{text-align:center}.session-title h2{font-size:26px;margin:2px 0}.game-panel{max-width:780px;margin:auto}.stage{height:400px;border-radius:30px;background:radial-gradient(circle at 50% 30%,#e6f6e8,#d6ecdb);display:grid;place-items:center;position:relative;overflow:hidden}.stage-spark{position:absolute;color:#edbd65;font-size:50px}.s1{left:14%;top:18%}.s2{right:15%;top:27%}.s3{right:22%;bottom:16%}.character-card{width:275px;height:312px;background:#fffdf4;border:6px solid #fff;border-radius:25px;box-shadow:0 13px 0 #aed5bf,0 19px 30px #6aa68740;display:flex;flex-direction:column;align-items:center;justify-content:space-between;padding:15px;transform:rotate(-2deg)}.card-tag{background:#fce7b4;border-radius:99px;color:#946d2f;font-size:14px;font-weight:900;padding:6px 12px;align-self:flex-start}.big-character{font-family:'Noto Sans SC',sans-serif;font-weight:800;color:#2b5761;font-size:150px;line-height:1}.card-bottom{color:#82928a;font-size:14px;font-weight:800}.answer-actions{text-align:center;padding-top:26px}.answer-actions .wide{min-width:270px}.answer-actions p{color:#84918b;font-size:14px}.choice-row{display:flex;justify-content:center;gap:15px;margin:17px 0}.choice-row .btn{min-width:190px}.play-footer{max-width:780px;display:flex;justify-content:space-between;align-items:center;margin:15px auto 0;color:#8c978b;font-size:14px}.hidden{display:none!important}.audio-stage{text-align:center;background:#e2f1ea;border-radius:27px;padding:28px}.audio-orb{width:95px;height:95px;border-radius:50%;background:#fff;margin:0 auto 11px;display:grid;place-items:center;font-size:48px}.audio-stage h3{font-size:25px;color:#385d66;margin:8px 0 18px}.audio-choices{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin:24px 0}.audio-choice{height:132px;border:4px solid #fff;border-radius:22px;background:#fffdf4;color:#2d5863;font-size:72px;font-weight:800;box-shadow:0 6px 0 #dcd7c8}.audio-choice.good{background:#d8f0dc;border-color:#6db993}.audio-choice.bad{background:#ffe3d9;border-color:#e89079}.audio-feedback{text-align:center;min-height:30px;font-weight:900;color:#4a8074;font-size:20px}.audio-game #next-audio-btn{margin:auto}.page-heading{display:flex;justify-content:space-between;align-items:center;margin:36px 0 22px}.page-heading h1{font-size:39px;color:#2e5560;margin:6px 0}.page-heading p{color:#748781;margin:0;font-size:17px}.library-summary{background:#fff;border-radius:20px;padding:17px 22px;text-align:center;min-width:145px}.library-summary b{display:block;font-size:31px;color:#ef745e}.library-summary span{font-size:13px;color:#849389}.library-controls{display:flex;align-items:center;gap:13px;background:#fffdf7;padding:16px;border-radius:18px}.library-controls label{font-weight:900;white-space:nowrap}.library-controls select,.library-controls input{min-height:48px;border:2px solid #e6e5d9;background:white;border-radius:12px;padding:8px 13px;color:#39565c;font-size:16px}.library-controls input{margin-left:auto;width:250px}.legend{display:flex;gap:22px;color:#7c8980;font-size:14px;margin:20px 3px}.legend span{display:flex;align-items:center;gap:7px}.dot{display:inline-block;width:13px;height:13px;border-radius:50%}.dot.known{background:#70bd98}.dot.learning{background:#f2b963}.dot.unseen{background:#d6dace}.character-grid{display:grid;grid-template-columns:repeat(9,1fr);gap:12px}.char-tile{height:90px;border:2px solid #e7e5d9;border-radius:17px;background:#fffdf7;color:#375e67;font-size:42px;font-weight:800;position:relative;box-shadow:0 4px 0 #e4dfd0}.char-tile.known{background:#def3e4;border-color:#91d1a8}.char-tile.learning{background:#fff0d2;border-color:#f0c874}.char-tile .mark{position:absolute;right:8px;top:4px;font-size:15px;color:#398467}.library-note{color:#86938b;text-align:center;margin:18px}.parent-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:15px}.parent-stats div{background:#fffdf7;border-radius:19px;padding:20px;display:grid;gap:5px;text-align:center}.parent-stats strong{font-size:35px;color:#398575}.parent-stats span{color:#7b8d87}.parent-card{background:#fffdf7;border-radius:20px;margin-top:18px;padding:21px 25px}.parent-card h2{margin:0 0 10px;color:#365e67;font-size:22px}.parent-card p{color:#71827e;line-height:1.7;margin:0}.parent-buttons{display:flex;gap:12px;margin-top:18px}.upload-btn{cursor:pointer}.status-text{margin-top:12px!important}.toast{position:fixed;left:50%;bottom:105px;transform:translateX(-50%) translateY(20px);background:#325e62;color:#fff;border-radius:13px;padding:12px 20px;opacity:0;pointer-events:none;transition:.2s;z-index:30;font-weight:800;box-shadow:0 8px 22px #28434844}.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}
@media(max-width:760px){.app-shell{padding:0 15px 100px}.topbar{height:70px}.brand{font-size:18px}.brand-mark{width:38px;height:38px}.coin{font-size:13px;padding:8px}.icon-btn{width:42px;height:42px}.hero{grid-template-columns:1fr;min-height:0}.hero-copy{padding:28px 25px 200px}.hero h1{font-size:37px}.hero-art{position:absolute;right:0;bottom:0;width:100%;height:215px;min-height:0}.hero-board{left:auto;right:20%;top:25px}.hero-board span{width:55px;height:65px;font-size:37px}.sun{font-size:49px;right:12%;top:0}.mascot{width:55px;height:52px;font-size:17px;right:10%;bottom:7px}.hill-back{bottom:-155px}.hill-front{bottom:-130px}.home-cards{grid-template-columns:1fr;gap:12px}.feature-card{min-height:100px}.section-heading h2{font-size:21px}.count-pill{font-size:12px}.bottom-nav{justify-content:space-around;gap:0}.nav-item{min-width:0;flex:1;padding:4px 0}.play-header{gap:5px}.session-title h2{font-size:19px}.mini-score{font-size:12px;padding:8px}.stage{height:365px}.character-card{width:240px;height:280px}.big-character{font-size:130px}.choice-row .btn{min-width:0;flex:1;padding:12px}.audio-choices{grid-template-columns:repeat(2,1fr)}.audio-choice{height:100px;font-size:58px}.page-heading h1{font-size:30px}.page-heading p{font-size:14px}.library-summary{min-width:90px;padding:12px}.library-controls{flex-wrap:wrap}.library-controls input{width:100%;margin:0}.character-grid{grid-template-columns:repeat(5,1fr);gap:7px}.char-tile{height:65px;font-size:31px}.parent-stats{grid-template-columns:repeat(2,1fr)}.parent-buttons{flex-wrap:wrap}}
@media(min-width:761px) and (max-width:1050px){.character-grid{grid-template-columns:repeat(6,1fr)}.hero-board{left:5%}.hero-copy{padding-left:35px}}
.challenge-instruction{font-size:18px!important;font-weight:900;color:#3d6970!important;margin:0 0 15px!important}.pronunciation-options{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin:0 0 10px}.pronunciation-card{background:#fffdf4;border:2px solid #e6e5d8;border-radius:18px;padding:10px;display:grid;gap:8px;box-shadow:0 4px 0 #e4dfd0}.pronunciation-card.good{background:#e2f3e5;border-color:#7bc29c}.pronunciation-card.bad{background:#fff0e9;border-color:#eaaa91}.pronunciation-card button{border:0;border-radius:11px;min-height:46px;font-weight:900}.listen-option{background:#e4f1f2;color:#356a75;font-size:17px}.choose-option{background:#f1b654;color:#664820;font-size:16px}.answer-actions h3{font-size:23px;color:#3c796d;margin:3px 0 15px}@media(max-width:760px){.pronunciation-options{grid-template-columns:repeat(2,1fr)}.pronunciation-card button{min-height:43px}.stage{height:310px}.character-card{height:245px}.big-character{font-size:116px}}
@media(min-width:761px){#read-game{max-width:1000px;display:grid;grid-template-columns:minmax(0,44%) minmax(0,56%);gap:26px;align-items:center}#read-game .stage{height:420px}#read-game .answer-actions{padding:0}#read-game .pronunciation-options{grid-template-columns:repeat(2,1fr)}.play-footer{max-width:1000px}}
.mountain-scroll{overflow-x:auto;border-radius:27px;margin:22px 0 26px}.mountain-map{min-width:820px;height:330px;position:relative;overflow:hidden;background:radial-gradient(circle at 84% 15%,#ffdf86 0 32px,transparent 33px),linear-gradient(165deg,#dff2ea 5%,#a8d7ba 70%,#70b794 100%);border-radius:27px}.mountain-map:before{content:'';position:absolute;width:900px;height:300px;left:-40px;bottom:-170px;border-radius:50%;background:#7ebf99;transform:rotate(-8deg)}.mountain-map:after{content:'';position:absolute;width:660px;height:190px;right:-80px;bottom:-130px;border-radius:50%;background:#54a984;transform:rotate(10deg)}.trail-line{position:absolute;inset:0;width:100%;height:100%;z-index:1;filter:drop-shadow(0 4px 0 #c69d7040)}.mountain-node{position:absolute;z-index:2;transform:translate(-50%,-50%);width:102px;height:95px;display:grid;place-content:center;gap:0;border:3px solid #fff;border-radius:21px;background:#fffdf3;color:#356679;box-shadow:0 7px 0 #8cbba7,0 10px 18px #386e5955;text-align:center}.mountain-node span{font-size:25px}.mountain-node b{font-size:16px}.mountain-node small{font-size:11px;color:#769187}.mountain-node.current{background:#fff1cc;border-color:#ffd277;box-shadow:0 7px 0 #d0a96a,0 10px 18px #386e5955}.mountain-node.done{background:#e1f4df;border-color:#83c8a2}.mountain-node.locked{opacity:.63;filter:grayscale(.5);cursor:not-allowed}.level-heading{display:flex;justify-content:space-between;align-items:center;margin:22px 0 8px}.level-heading h2{margin:0;color:#355e67}.record-btn{min-width:265px;min-height:72px;font-size:21px}.recognition-status{color:#4e7e7e!important;font-weight:800;min-height:25px}.parent-hint{font-size:13px!important;margin-top:7px!important}.parent-hold{touch-action:none}.btn:disabled,.char-tile:disabled{opacity:.55;cursor:not-allowed;box-shadow:none;transform:none}.level-result{max-width:700px;margin:35px auto;background:#e3f2e5;border-radius:30px;padding:45px;text-align:center;box-shadow:0 8px 0 #d4e2cc}.level-result .summit-icon{font-size:78px}.level-result h2{color:#2f6263;font-size:32px}.level-result p{color:#628179;font-size:18px}.level-result .btn{margin:10px}.server-setting{display:flex;gap:12px;margin-top:16px}.server-setting input{flex:1;min-width:0;border:2px solid #e0e8dc;border-radius:12px;padding:12px 15px;background:#fff;font-size:16px}@media(max-width:760px){.mountain-scroll{margin:15px -5px 20px}.level-heading h2{font-size:19px}.level-heading .btn{font-size:13px;padding:9px 12px;min-height:42px}.record-btn{min-width:0;width:100%}.server-setting{flex-direction:column}#read-game .stage{height:290px}.level-result{padding:26px}}