@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+Thai:wght@400;500;600;700;800&family=Noto+Sans+SC:wght@400;500;600;700&display=swap');
:root{font-synthesis:none;color-scheme:light;--primary:#2455d6;--navy:#153e90;--sky:#58b5f5;--canvas:#f7f9fc;--card:#fff;--soft:#edf4ff;--ink:#17263d;--muted:#56657b;--line:#dae3ef;--success:#167347;--bad:#b42332;--focus:#2455d6;--shadow:0 10px 38px rgba(25,58,118,.055)}
html[data-theme=dark]{color-scheme:dark;--canvas:#0e1728;--card:#162338;--soft:#1b3150;--ink:#f1f6ff;--muted:#aebdd0;--line:#30425d;--primary:#8bb1ff;--navy:#afc9ff;--focus:#a8c7ff;--success:#62dc9f;--bad:#ff9299;--shadow:0 10px 32px #0003}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--canvas);color:var(--ink);font:16px/1.6 'Noto Sans Thai',system-ui,sans-serif}button,input,select{font:inherit}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.62}a{color:var(--primary);text-decoration:none}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid var(--focus);outline-offset:3px}button,input,select{touch-action:manipulation}.skip{position:absolute;top:-80px;left:10px;background:var(--card);padding:12px;z-index:10}.skip:focus{top:10px}
.game-header{height:74px;display:flex;align-items:center;justify-content:space-between;gap:24px;padding:0 max(20px,calc((100vw - 1120px)/2));background:var(--card);border-bottom:1px solid var(--line)}.game-brand{display:flex;align-items:center;gap:12px;font-size:17px;font-weight:800;color:var(--ink);white-space:nowrap;line-height:1.2}.game-brand small{font-size:9px;letter-spacing:1.5px;font-weight:500;display:block;color:var(--muted);margin-top:3px}.brand-mark{background:#2455d6;color:white;font:700 24px 'Noto Sans SC';display:grid;place-items:center;height:43px;width:43px;border-radius:14px}.game-header-links{display:flex;gap:23px;margin-left:auto}.game-header-links a{font-size:13px;font-weight:600;color:var(--muted);white-space:nowrap}.game-header-links a.active,.game-header-links a:hover{color:var(--primary)}.icon-btn{min-width:44px;min-height:44px;border-radius:12px;background:var(--soft);color:var(--ink);font-size:23px;border:1px solid var(--line)}
.game-main{max-width:960px;padding:34px 20px 50px;margin:0 auto}.game-top{display:flex;justify-content:space-between;align-items:center;gap:16px}.eyebrow{margin:0 0 7px;color:var(--primary);font-size:11px;font-weight:800;letter-spacing:1.9px}.game-top h1{font-size:clamp(26px,3.2vw,34px);line-height:1.4;margin:0;color:var(--ink)}.description{color:var(--muted);margin:7px 0 0;font-size:14px}.back-link{font-size:13px;font-weight:700;white-space:nowrap}.setup-card{display:grid;grid-template-columns:1.3fr 1.5fr .8fr auto;align-items:end;gap:14px;margin-top:25px;background:var(--card);padding:18px;border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow)}.setup-card label{font-size:12px;color:var(--muted);font-weight:600}.setup-card select{display:block;width:100%;border-radius:11px;min-height:46px;margin-top:6px;background:var(--card);border:1px solid var(--line);padding:8px 11px;color:var(--ink)}.primary-btn{background:#2455d6;color:white;border:1px solid transparent;border-radius:12px;padding:12px 21px;min-height:46px;font-weight:700;font-size:14px;white-space:nowrap}.primary-btn:hover{background:#1c46b4}.ghost-btn{display:inline-flex;justify-content:center;align-items:center;border:1px solid var(--line);border-radius:12px;padding:11px 17px;min-height:44px;background:var(--card);color:var(--ink);font-size:14px;font-weight:700}.ghost-btn:hover{border-color:var(--primary);color:var(--primary)}.status-line{color:var(--muted);font-size:13px;margin:15px 1px}.play-card,.summary-card{background:var(--card);border:1px solid var(--line);box-shadow:var(--shadow);border-radius:22px;padding:26px 30px 30px;max-width:780px;margin:18px auto}.progress-row{display:flex;justify-content:space-between;font-size:12px;font-weight:700;color:var(--muted)}.progress-track{width:100%;height:8px;background:var(--soft);margin-top:12px;border-radius:999px;overflow:hidden}.progress-track>div{width:0;height:100%;border-radius:999px;background:#2455d6;transition:width .25s ease}.prompt-wrap{text-align:center;min-height:220px;display:flex;justify-content:center;align-items:center;flex-direction:column;padding:27px 8px 20px}.small-label{color:var(--muted);font-size:13px;font-weight:600}.question-prompt{font:700 clamp(36px,9vw,74px)/1.5 'Noto Sans SC','Noto Sans Thai',sans-serif;overflow-wrap:anywhere;color:var(--ink);max-width:100%;margin:2px 0 7px}.sound-prompt{font-size:70px;color:var(--primary)}.listen-btn{padding:11px 22px;border:1px solid var(--line);background:var(--soft);color:var(--primary);border-radius:999px;min-height:47px;font-weight:700}.audio-state{color:var(--muted);font-size:12px;margin:8px 0 0;min-height:18px}.answers{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.answer-btn{width:100%;min-height:72px;padding:14px 15px;background:var(--card);color:var(--ink);border:1.5px solid var(--line);border-radius:13px;font-weight:700;font-size:17px;line-height:1.5;text-align:center;overflow-wrap:anywhere}.answer-btn:not(:disabled):hover{border-color:var(--primary);background:var(--soft)}.answer-btn:active{transform:scale(.99)}.answer-btn.hanzi-option{font:700 29px 'Noto Sans SC'}.answer-btn.right{border-color:var(--success);background:color-mix(in srgb,var(--success) 9%,var(--card))}.answer-btn.wrong{border-color:var(--bad);background:color-mix(in srgb,var(--bad) 8%,var(--card))}.text-answer{max-width:560px;margin:auto}.text-answer label{font-size:13px;font-weight:700}.input-row{display:flex;gap:10px;margin-top:8px}.input-row input{min-height:49px;min-width:0;flex:1;color:var(--ink);background:var(--card);border:1px solid var(--line);border-radius:12px;padding:10px 13px}.text-answer small,.speech-section small{display:block;color:var(--muted);font-size:12px;margin-top:8px}
.feedback{border:1px solid var(--line);border-radius:15px;padding:20px;background:var(--soft);margin-top:19px}.feedback[data-state=wrong]{border-color:color-mix(in srgb,var(--bad) 35%,var(--line))}.feedback strong{display:block;color:var(--ink);font-size:17px}.feedback p{margin:8px 0;color:var(--muted);font-size:14px}.feedback-chinese{font:600 24px/1.5 'Noto Sans SC';margin:7px 0 14px}.feedback .primary-btn{width:100%;margin-top:5px}.speech-section{margin:12px 0 16px;padding:13px;border-radius:12px;border:1px solid var(--line);background:var(--card)}.speech-section>span{display:block;color:var(--muted);margin:8px 0;font-size:12px}.matching-board{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.matching-column{display:grid;gap:10px}.match-btn{border:1.5px solid var(--line);border-radius:13px;min-height:66px;width:100%;background:var(--card);color:var(--ink);font-weight:700;font-size:16px;padding:10px 14px;overflow-wrap:anywhere}.match-btn[data-side=zh]{font-size:26px;font-family:'Noto Sans SC',sans-serif}.match-btn.selected{border-color:var(--primary);background:var(--soft)}.match-btn.matched{background:color-mix(in srgb,var(--success) 10%,var(--card));border-color:var(--success);color:var(--success)}.match-btn.pair-error{border-color:var(--bad)}.sentence-board{display:block}.sentence-built{min-height:88px;border:2px dashed var(--line);background:var(--canvas);border-radius:14px;padding:10px;margin-bottom:15px;display:flex;flex-wrap:wrap;gap:8px;align-items:center}.sentence-tokens{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:18px}.token-btn,.built-token{border:1px solid var(--line);border-radius:10px;padding:8px 12px;background:var(--card);color:var(--ink);font:600 18px/1.6 'Noto Sans SC';min-height:47px}.token-btn.used{opacity:.2;pointer-events:none}.built-token{border-color:var(--primary);background:var(--soft)}.sentence-board .primary-btn,.sentence-board .ghost-btn{margin:4px 8px 0 0}
.summary-card{text-align:center;padding:34px 30px}.summary-kicker{font-size:11px;color:var(--primary);letter-spacing:2px;font-weight:800}.summary-card h2{font-size:27px;margin:10px 0}.result-number{font-size:clamp(39px,8vw,62px);font-weight:800;line-height:1.2;color:var(--primary);font-variant-numeric:tabular-nums}.summary-card>p{color:var(--muted);font-size:14px}.summary-actions{display:flex;align-items:center;justify-content:center;gap:10px;flex-wrap:wrap;margin-top:19px}.summary-wrong{text-align:left;margin-top:20px}.summary-wrong h3{font-size:14px}.wrong-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(102px,1fr));gap:9px}.wrong-item{border:1px solid var(--line);padding:10px;border-radius:11px;text-align:center}.wrong-item b{display:block;font:700 28px 'Noto Sans SC'}.wrong-item small{display:block;color:var(--muted);font-size:12px;line-height:1.5}.learning-note{max-width:780px;margin:24px auto;background:var(--soft);padding:17px 21px;border-radius:15px;color:var(--ink)}.learning-note strong{font-size:13px}.learning-note p{margin:5px 0 0;color:var(--muted);font-size:12px}.game-footer{padding:20px;border-top:1px solid var(--line);color:var(--muted);font-size:12px;text-align:center}.game-footer span{margin-left:15px}
[hidden]{display:none!important}
@media(max-width:760px){.game-header{padding:0 16px;height:66px}.game-header-links{gap:11px}.game-header-links a{font-size:12px}.game-header-links a:first-child{display:none}.game-main{padding:23px 13px 40px}.setup-card{grid-template-columns:1fr 1fr;padding:14px;gap:10px}.setup-card .primary-btn{grid-column:1/-1}.game-top{align-items:flex-start}.game-top h1{font-size:25px}.back-link{font-size:12px;margin-top:14px}.description{font-size:13px}.play-card,.summary-card{padding:18px 14px 22px;border-radius:18px}.prompt-wrap{min-height:190px;padding:22px 4px 10px}.answer-btn{min-height:71px;padding:11px;font-size:15px}.answer-btn.hanzi-option{font-size:25px}.matching-board{gap:9px}.match-btn{min-height:65px;padding:9px;font-size:13px}.match-btn[data-side=zh]{font-size:25px}.game-footer span{display:block;margin:5px 0 0}}
@media(max-width:410px){.game-brand small{font-size:8px}.game-brand{font-size:14px}.brand-mark{width:37px;height:37px}.game-header-links a{font-size:11px}.setup-card{grid-template-columns:1fr 1fr}.setup-card label:nth-child(2){grid-column:1/-1;grid-row:2}.setup-card label:nth-child(3){grid-column:2;grid-row:1}.input-row{flex-direction:column}.answers{gap:9px}.answer-btn{font-size:13px;min-height:68px}.question-prompt{font-size:39px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important;animation:none!important}}

body.is-playing .setup-card,body.is-playing #load-status,body.is-summary .setup-card,body.is-summary #load-status{display:none!important}body.is-playing .game-main,body.is-summary .game-main{padding-top:23px}body.is-playing .game-top .description,body.is-summary .game-top .description{display:none}body.is-playing .play-card,body.is-summary .summary-card{margin-top:20px}.feedback #feedback-audio{margin-bottom:14px}.feedback:has(#feedback-audio:not([hidden])) .feedback-chinese{margin-bottom:9px}

.question-prompt.thai-prompt{font:700 clamp(22px,4.5vw,34px)/1.5 "Noto Sans Thai",system-ui,sans-serif;max-width:640px;letter-spacing:-.02em} .question-prompt.thai-prompt+ .listen-btn{margin-top:7px}


/* V6.5 mobile fixes shared across basic and Pro games */
html,body{max-width:100%;overflow-x:clip}
.game-main,.game-main>*,.game-top>*,.play-card>*{min-width:0}
.game-header{max-width:100%;gap:8px}.game-header-links{flex-shrink:1}
.game-top h1,.question-prompt,.description{overflow-wrap:anywhere}
@media(max-width:640px){
 .game-main{width:100%;max-width:100%;padding:16px 12px 60px}
 .game-top{flex-wrap:wrap;gap:8px}.game-header{padding:8px 12px;min-height:60px;height:auto}
 .setup-card{display:grid;grid-template-columns:1fr!important;gap:10px}
 .setup-card>*{grid-column:1/-1!important;grid-row:auto!important;min-width:0;width:100%}
 .play-card,.summary-card{max-width:100%;padding:17px 12px}
 .answers{grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}
 .answer-btn{overflow-wrap:anywhere;white-space:normal;min-width:0}
 .input-row,.speaking-actions{max-width:100%;min-width:0}
 input,select,textarea{max-width:100%;font-size:16px}
 .game-footer{overflow-wrap:anywhere}
}
@media(max-width:360px){.answers{grid-template-columns:1fr}}