/* Layout, subject variants and responsive overrides. Load after tokens.css and components.css. */
@import url("https://fonts.googleapis.com/css2?family=Noto+Sans+Thai:wght@400;500;600;700&family=Noto+Serif+Thai:wght@500;600;700&display=swap");
*{box-sizing:border-box}
body{margin:0;background:var(--color-cream-ground);color:var(--color-ink-green);font-family:var(--font-interface);font-size:var(--font-size-16);line-height:var(--line-height-body)}
button,a,input{font:inherit}
button,a{-webkit-tap-highlight-color:transparent}
a{color:inherit;text-decoration:none}
button{cursor:pointer}
button:disabled{cursor:default;opacity:.55}
::selection{background:#d5e5bb;color:var(--color-ink-green)}
:focus-visible{outline:var(--focus-width) solid var(--color-focus-terracotta);outline-offset:var(--focus-offset)}
html{scroll-behavior:smooth}
h1,h2,h3,p{margin:0}
h1,h2,h3{text-wrap:balance}
h1{font-family:var(--font-display);font-size:var(--font-size-40);line-height:var(--line-height-heading);font-weight:var(--font-weight-semibold)}
h2{font-size:var(--font-size-24);font-weight:var(--font-weight-semibold)}
h3{font-size:var(--font-size-21)}
small{font-size:var(--font-size-12)}
.app{display:flex;min-height:100vh}
.sidebar{width:246px;padding:var(--space-36) var(--space-25) var(--space-24);border-right:1px solid var(--color-soft-divider);background:var(--color-paper-surface);position:fixed;inset:0 auto 0 0;display:flex;flex-direction:column;z-index:5}
.brand{display:flex;align-items:center;gap:11px;font-size:var(--font-size-23);font-weight:var(--font-weight-bold);line-height:var(--line-height-heading)}
.brand small{display:block;font-size:10px;font-weight:var(--font-weight-regular);color:var(--color-muted-leaf)}
.brand-mark{background:var(--color-learning-green);color:var(--color-white);border-radius:12px 12px 4px 12px;width:42px;height:46px;display:grid;place-items:center;font-family:var(--font-display);font-size:29px}
.grade-label{margin:48px var(--space-12) 19px;font-size:var(--font-size-12);color:var(--color-muted-leaf);display:flex;align-items:center;justify-content:space-between}
.grade-label span{background:#f0f0e7;border-radius:5px;padding:1px var(--space-8);font-weight:var(--font-weight-semibold);color:var(--color-ink-green)}
nav{display:grid;gap:var(--space-8)}
nav a{padding:13px var(--space-16);display:flex;align-items:center;gap:var(--space-14);border-radius:var(--radius-navigation);font-size:var(--font-size-22);color:#728174}
nav a span{font-size:var(--font-size-15)}
nav a.active{background:var(--color-mint-surface);color:var(--color-learning-green);font-weight:var(--font-weight-semibold)}
nav a:hover{background:var(--color-soft-hover)}
.side-note{margin-top:auto;padding:35px var(--space-12) 30px}
.side-note strong{display:block;font-size:var(--font-size-15)}
.side-note p{font-size:var(--font-size-12);color:var(--color-muted-leaf);margin-top:7px}
.plant{display:block;color:var(--color-learning-green);font-size:42px;margin-bottom:var(--space-10)}
.parent-link{font-size:var(--font-size-13);border-top:1px solid var(--color-soft-divider);padding:21px var(--space-10) var(--space-10);display:flex;justify-content:space-between}
.prototype{font-size:10px;color:var(--color-muted-leaf);padding:0 var(--space-10)}
.workspace{margin-left:246px;width:calc(100% - 246px)}
.topbar{height:89px;display:flex;align-items:center;justify-content:space-between;padding:0 var(--space-45);border-bottom:1px solid var(--color-soft-divider);background:var(--color-paper-surface)}
.breadcrumb{font-size:var(--font-size-12);color:var(--color-muted-leaf)}
.breadcrumb span{padding:0 var(--space-12);color:#c3cabc}
.header-right{display:flex;gap:var(--space-22);align-items:center}
.star-counter{font-size:var(--font-size-13);color:#796123}
.avatar{width:37px;height:37px;border-radius:50%;background:#eee4ca;display:grid;place-items:center;font-size:var(--font-size-12);font-weight:var(--font-weight-bold)}
main{max-width:1270px;margin:auto;padding:39px var(--space-45) var(--space-45);min-height:calc(100vh - 153px)}
.greeting{display:flex;justify-content:space-between;align-items:flex-end;margin-bottom:var(--space-25)}
.greeting p{color:var(--color-muted-leaf);font-size:var(--font-size-14);margin-top:7px}
.date-note{font-size:var(--font-size-12);color:var(--color-muted-leaf);padding-bottom:5px}
.hero{background:var(--color-mint-surface);border-radius:var(--radius-sheet);padding:35px 38px;display:grid;grid-template-columns:1.25fr 1fr;position:relative;overflow:hidden;min-height:257px}
.hero h2{font-family:var(--font-display);font-size:32px;line-height:1.6;font-weight:var(--font-weight-semibold)}
.hero p{font-size:var(--font-size-14);color:#47604a;margin:11px 0 var(--space-24)}
.hero-art{display:flex;align-items:center;justify-content:center;position:relative;min-height:180px}
.block{height:100px;width:93px;border-radius:var(--radius-choice);display:grid;place-items:center;font-family:var(--font-display);font-weight:var(--font-weight-bold);font-size:65px}
.block.one{background:#f4c978;color:#775120;transform:rotate(-12deg) translate(20px,12px);z-index:1}
.block.two{background:#fffdf1;color:#37644a;transform:rotate(8deg) translate(0,-20px);z-index:2}
.block.three{background:#d8784d;color:var(--color-white);transform:rotate(15deg) translate(-15px,42px);z-index:3}
.art-star{position:absolute;font-size:var(--font-size-36);color:#6b8452;right:9px;top:3px}
.hero-caption{position:absolute;bottom:0;left:33%;font-size:11px;letter-spacing:.04em;color:#536c51}
.daily{margin:23px 0 37px;display:flex;align-items:center;gap:var(--space-16);font-size:var(--font-size-13)}
.daily-icon{display:grid;place-items:center;width:38px;height:38px;background:#f2ecdb;border-radius:50%;font-size:var(--font-size-21);color:#8c652b}
.daily strong{font-size:var(--font-size-13)}
.daily p{font-size:var(--font-size-12);color:var(--color-muted-leaf)}
.daily-meter{margin-left:auto;width:148px;height:6px;border-radius:var(--radius-choice);background:#e4e7dc;overflow:hidden}
.daily-meter span{display:block;height:100%;background:var(--color-learning-green);border-radius:var(--radius-choice)}
.daily-count{font-size:var(--font-size-12);color:var(--color-muted-leaf)}
.section-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:var(--space-18)}
.section-head p{color:var(--color-muted-leaf);font-size:var(--font-size-12);margin-top:3px}
.text-link{font-size:var(--font-size-13);color:var(--color-learning-green);text-decoration:underline;text-underline-offset:5px}
.subject.thai .subject-art{background:var(--color-thai-ground)}
.subject.math .subject-art{background:var(--color-math-ground)}
.letter-art{font-family:var(--font-display);font-size:74px;font-weight:var(--font-weight-semibold);color:#8a532d;line-height:1}
.letter-art:nth-child(2){color:#c4784d;transform:rotate(12deg) translateY(6px);font-size:94px}
.letter-art:nth-child(3){transform:rotate(-8deg);color:#77654b}
.equation{font-size:60px;color:var(--color-math-ink);letter-spacing:6px;font-weight:var(--font-weight-medium)}
.art-tag{position:absolute;left:17px;top:14px;font-size:10px;border:1px solid #7e6d4933;border-radius:4px;padding:2px 7px;color:#665636;background:#fffefa80}
.home-bottom{margin-top:30px;display:flex;gap:19px;align-items:center;padding:21px 0;border-top:1px solid var(--color-soft-divider)}
.home-bottom .small-flower{font-size:37px;color:#b48d51}
.home-bottom strong{font-size:var(--font-size-14)}
.home-bottom p{font-size:var(--font-size-12);color:var(--color-muted-leaf);margin-top:3px}
.home-bottom a{margin-left:auto;white-space:nowrap}
footer{max-width:1270px;margin:auto;border-top:1px solid var(--color-soft-divider);padding:var(--space-20) var(--space-45);color:var(--color-muted-leaf);font-size:10px;display:flex;justify-content:space-between}
.page-intro{margin-bottom:var(--space-28)}
.page-intro p{color:var(--color-muted-leaf);margin-top:9px;font-size:var(--font-size-14)}
.lesson-glyph.math{background:var(--color-math-ground);color:var(--color-math-ink)}
.back{display:inline-block;font-size:var(--font-size-13);margin-bottom:var(--space-24);color:var(--color-muted-leaf)}
.learning{max-width:760px;margin:auto}
.learning-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:var(--space-22)}
.learning-head h1{font-size:var(--font-size-30)}
.learning-head p{font-size:var(--font-size-13);color:var(--color-muted-leaf);margin-top:5px}
.lesson-display{background:var(--color-thai-ground);text-align:center;padding:var(--space-25);border-radius:var(--radius-display);margin-bottom:26px}
.lesson-display.math{background:var(--color-math-ground)}
.big-symbol{font-size:var(--font-size-72);color:var(--color-thai-ink);font-family:var(--font-display);font-weight:var(--font-weight-semibold)}
.lesson-display.math .big-symbol{color:var(--color-math-ink)}
.lesson-display p{font-size:var(--font-size-20);color:var(--color-ink-green);margin-top:7px}
.teaching{font-size:var(--font-size-19);line-height:var(--line-height-lesson)}
.example{margin-top:23px;padding:19px var(--space-22);background:var(--color-learning-soft);border-radius:var(--radius-navigation);font-size:var(--font-size-17)}
.learning-actions{display:flex;justify-content:space-between;gap:15px;align-items:center;margin-top:var(--space-28)}
.learning-actions p{font-size:var(--font-size-12);color:var(--color-muted-leaf)}
.quiz-progress{display:flex;gap:7px;margin:var(--space-20) 0 26px}
.quiz-progress span{height:5px;background:#e0e6d9;flex:1;border-radius:5px}
.quiz-progress span.done{background:var(--color-learning-green)}
.question-no{font-size:var(--font-size-12);color:var(--color-muted-leaf);margin-bottom:13px}
.question{font-size:var(--font-size-25);line-height:var(--line-height-choice);margin-bottom:26px}
.result{text-align:center;padding:30px 0}
.result-stars{font-size:55px;color:#a57a20;letter-spacing:12px;margin-bottom:var(--space-18)}
.result h1{font-size:34px}
.result p{margin:var(--space-14) 0 var(--space-24);color:var(--color-muted-leaf)}
.result .actions{display:flex;gap:var(--space-12);justify-content:center;flex-wrap:wrap}
.summary-banner{background:var(--color-mint-surface);padding:26px 30px;border-radius:var(--radius-activity);margin:var(--space-25) 0 30px;display:flex;align-items:center;gap:var(--space-25)}
.summary-banner .number{font-family:var(--font-display);font-size:49px}
.summary-banner p{font-size:var(--font-size-14);color:var(--color-muted-leaf)}
.empty{padding:var(--space-45) var(--space-25);text-align:center}
.empty p{margin:var(--space-10) 0 var(--space-24);color:var(--color-muted-leaf)}
.parent-content{max-width:770px}
.parent-content h2{margin:var(--space-28) 0 var(--space-12)}
.parent-content p,.parent-content li{color:#536354;font-size:var(--font-size-15);line-height:var(--line-height-lesson)}
.parent-content a:not(.button){text-decoration:underline;text-underline-offset:4px}
.notice{background:var(--color-thai-ground);border-radius:var(--radius-display);padding:23px 26px;margin:var(--space-25) 0}
.danger-button{border:1px solid #b57350;color:var(--color-wrong-ink);background:transparent;padding:var(--space-10) 17px;border-radius:var(--radius-filter);min-height:var(--control-min-height)}
.toast{position:fixed;left:50%;bottom:25px;transform:translateX(-50%);padding:var(--space-12) 23px;border-radius:var(--radius-control);background:var(--color-ink-green);color:var(--color-white);z-index:20;display:none;font-size:var(--font-size-14);max-width:90vw}
.toast.show{display:block}
.count-dots{display:flex;justify-content:center;flex-wrap:wrap;gap:var(--space-12);margin:var(--space-14) auto;max-width:360px}
.count-dots i{width:25px;height:25px;border-radius:50%;background:#b36836}
.icon{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0}
.inline-icon{display:inline-flex;align-items:center;gap:var(--space-8)}
.sidebar nav .icon{width:21px}
.hero .button{font-size:var(--font-size-15)}
@media(min-width:1500px){
main{padding-top:50px}
.hero{min-height:290px}
.subject-art{height:175px}
.subject-body{padding:27px}
}
@media(max-width:1100px){
.sidebar{width:205px;padding:30px 17px}
.workspace{margin-left:205px;width:calc(100% - 205px)}
main{padding:30px}
.topbar{padding:0 30px}
.hero{padding:var(--space-28)}
.hero h2{font-size:28px}
.block{width:70px;height:83px;font-size:50px}
.hero-caption{left:18%}
.date-note{display:none}
footer{padding:var(--space-20) 30px}
}
@media(max-width:760px){
.app{display:block}
.sidebar{position:static;width:100%;padding:17px var(--space-20);border-right:0;border-bottom:1px solid var(--color-soft-divider);display:block}
.brand{font-size:var(--font-size-21)}
.brand-mark{height:39px;width:36px;font-size:var(--font-size-24)}
.brand small{font-size:9px}
.grade-label,.side-note,.prototype,.parent-link{display:none}
nav{display:flex;gap:var(--space-4);margin-top:var(--space-18)}
nav a{flex:1;min-width:0;flex-direction:column;justify-content:center;padding:9px var(--space-8);gap:var(--space-4);text-align:center}
nav a span{font-size:var(--font-size-child-control)}
.workspace{width:100%;margin:0}
.topbar{height:58px;padding:0 var(--space-20)}
.breadcrumb{font-size:10px}
.breadcrumb span{padding:0 7px}
.header-right{gap:var(--space-10)}
.avatar{display:none}
.star-counter{font-size:11px}
main{padding:var(--space-25) var(--space-20);min-height:60vh}
h1{font-size:var(--font-size-30)}
h2{font-size:var(--font-size-21)}
.greeting{margin-bottom:var(--space-22)}
.greeting p{font-size:var(--font-size-12)}
.hero{padding:27px var(--space-24);grid-template-columns:1fr;min-height:0}
.hero h2{font-size:29px}
.hero p{font-size:var(--font-size-13);max-width:260px}
.hero-art{min-height:142px;margin-top:var(--space-20)}
.block{height:80px;width:80px;font-size:55px}
.block.one{transform:rotate(-12deg) translate(15px,0)}
.block.two{transform:rotate(8deg) translate(0,-17px)}
.block.three{transform:rotate(15deg) translate(-10px,14px)}
.hero-caption{bottom:-1px;left:0;right:0;text-align:center}
.art-star{right:12%;top:0}
.hero .button{padding:var(--space-12) var(--space-18)}
.daily{gap:var(--space-10);margin:var(--space-20) 0 27px;flex-wrap:wrap}
.daily-meter{width:70px}
.daily-count{font-size:10px}
.daily-icon{width:30px;height:30px}
.daily p{font-size:10px}
.daily strong{font-size:var(--font-size-12)}
.subjects{grid-template-columns:1fr;gap:var(--space-20)}
.subject-art{height:135px}
.section-head{gap:var(--space-12)}
.section-head .text-link{font-size:11px;white-space:nowrap}
.section-head p{font-size:11px}
.home-bottom{align-items:flex-start;gap:var(--space-12);flex-wrap:wrap}
.home-bottom a{margin-left:49px}
.home-bottom p{max-width:240px}
footer{padding:var(--space-20);display:block;font-size:9px}
footer span{display:block;margin-top:var(--space-4)}
.learning-sheet{padding:var(--space-24) 19px}
.learning-head{gap:var(--space-14)}
.learning-head h1{font-size:var(--font-size-25)}
.listen{font-size:var(--font-size-12);padding:9px 11px;white-space:nowrap}
.question{font-size:var(--font-size-22)}
.choice{font-size:var(--font-size-23);padding:17px 9px}
.lesson-row{gap:var(--space-12);flex-wrap:wrap}
.lesson-row h3{font-size:var(--font-size-16)}
.lesson-row .button{margin-left:73px;font-size:var(--font-size-12);padding:9px var(--space-16)}
.lesson-list{padding:0 var(--space-18)}
.lesson-glyph{width:55px;height:58px}
.filters{gap:6px}
.filter{font-size:var(--font-size-13);padding:9px var(--space-14)}
.teaching{font-size:var(--font-size-17)}
.learning-actions{flex-wrap:wrap}
.result h1{font-size:28px}
.result p{font-size:var(--font-size-14)}
.summary-banner{padding:23px 19px;gap:17px}
.parent-content h1{font-size:28px}
}
@media(prefers-reduced-motion:reduce){
html{scroll-behavior:auto}
}
/* Readable supporting text on small screens. */
nav a{color:#5c6d5e}
.brand small,.prototype,.art-tag,.breadcrumb,footer,.daily p,.daily-count{font-size:var(--font-size-12)}
.star-counter{font-size:var(--font-size-13)}
.block{box-shadow:var(--shadow-letter)}
.toast{box-shadow:var(--shadow-toast)}
@media(max-width:760px){
.brand small,.breadcrumb,footer,footer span,.daily p,.daily-count{font-size:11px}
}
@media(max-width:760px){
.big-symbol{font-size:var(--font-size-44)}
.lesson-display{padding:23px 15px}
.lesson-display p{font-size:var(--font-size-18)}
}
.course-unit{margin:32px 0 40px;scroll-margin-top:20px}
.unit-head{display:flex;justify-content:space-between;align-items:center;gap:var(--space-20);margin:0 0 17px}
.unit-head p{font-size:var(--font-size-13);color:var(--color-muted-leaf);margin-top:5px}
.unit-head .unit-position{font-size:var(--font-size-12);color:var(--color-learning-green);margin-bottom:6px}
.unit-head h2{font-size:var(--font-size-25)}
.unit-jump{display:flex;flex-wrap:wrap;gap:var(--space-8);margin:15px 0 30px}
.unit-jump a{flex:initial;padding:var(--space-8) 13px;min-height:42px;background:var(--color-control-muted);border-radius:6px;color:var(--color-learning-green);font-size:var(--font-size-12)}
.unit-sequence{display:flex;justify-content:space-between;gap:15px;margin-top:var(--space-25)}
.baseline{font-size:var(--font-size-12)!important;line-height:var(--line-height-lesson)}
.lesson-position{font-size:var(--font-size-12);color:var(--color-muted-leaf);margin:0 0 var(--space-18)}
.lesson-standards{margin:23px 0;color:var(--color-muted-leaf);font-size:var(--font-size-13)}
.lesson-standards summary{cursor:pointer;min-height:44px;padding:9px 0;color:var(--color-learning-green)}
.lesson-standards li{margin:7px 0}
.progress-separation{margin:-8px 0 var(--space-25);padding:var(--space-18) 0;border-bottom:1px solid var(--color-soft-divider);display:grid;gap:5px;font-size:var(--font-size-15)}
.progress-separation small{color:var(--color-muted-leaf);margin-top:7px}
.reading-link{display:flex;justify-content:space-between;gap:var(--space-20);align-items:center;padding:26px 0;margin-top:var(--space-25);border-block:1px solid var(--color-soft-divider)}
.reading-link h3{font-size:var(--font-size-20)}
.reading-link p{color:var(--color-muted-leaf);font-size:var(--font-size-13);margin-top:6px}
.coverage-table{overflow-x:auto;margin:var(--space-18) 0 35px}
table{width:100%;border-collapse:collapse;text-align:left;font-size:var(--font-size-14)}
th{background:var(--color-mint-surface);color:var(--color-learning-green);font-weight:var(--font-weight-semibold);padding:15px}
td{padding:15px;border-bottom:1px solid var(--color-soft-divider);vertical-align:top}
th:first-child{width:57%}
td a{display:inline-block;min-height:30px;font-size:var(--font-size-13)}
.word-toolbar{display:flex;align-items:center;gap:var(--space-14);flex-wrap:wrap;padding:var(--space-20) 0}
.word-toolbar label{font-size:var(--font-size-15)}
.word-toolbar select{font:inherit;padding:var(--space-10) 32px var(--space-10) 13px;background:var(--color-white);color:var(--color-ink-green);border:1px solid #b8c9b1;border-radius:var(--radius-filter);max-width:100%;min-height:var(--control-min-height)}
.word-toolbar>span{margin-left:auto;font-size:var(--font-size-13);color:var(--color-muted-leaf)}
.word-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:15px;margin:var(--space-25) 0}
.word-item{padding:15px;background:var(--color-paper-surface);border:1px solid var(--color-soft-divider);border-radius:var(--radius-choice);min-width:0}
.word-speak{width:100%;text-align:left;display:flex;align-items:center;justify-content:space-between;gap:var(--space-10);border:0;background:transparent;color:var(--color-learning-green);font-size:var(--font-size-23);min-height:57px;padding:5px 0;overflow-wrap:anywhere}
.word-item label{display:flex;align-items:center;gap:9px;font-size:var(--font-size-12);color:var(--color-muted-leaf);cursor:pointer;padding:var(--space-12) 0 0}
.word-pager{display:flex;gap:var(--space-12);align-items:center;justify-content:space-between;margin:var(--space-25) 0}
.word-pager>span{font-size:var(--font-size-13);color:var(--color-muted-leaf)}
.result-note{font-size:var(--font-size-14)!important}
.quiz-progress{scroll-margin-top:20px}
@media(max-width:1100px){
.word-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
}
@media(max-width:760px){
.unit-head{align-items:flex-start;gap:var(--space-12)}
.unit-head h2{font-size:var(--font-size-22)}
.unit-head .text-link{white-space:nowrap;font-size:var(--font-size-12)}
.unit-jump{gap:7px;margin-top:5px}
.unit-jump a{font-size:11px;padding:var(--space-8) var(--space-10);justify-content:flex-start;flex:initial}
.unit-sequence{flex-wrap:wrap;align-items:center}
.unit-sequence .button{font-size:var(--font-size-child-control);padding:var(--space-10) 13px}
.lesson-position{line-height:var(--line-height-lesson)}
.home-activity>p{font-size:var(--font-size-16)}
.observation-list label{font-size:var(--font-size-15)}
.reading-link{align-items:flex-start;flex-direction:column;gap:17px}
.word-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:11px}
.word-item{padding:var(--space-12)}
.word-speak{font-size:var(--font-size-21);gap:5px}
.word-speak .icon{width:19px}
.word-toolbar>span{margin-left:0;width:100%}
.word-pager{flex-wrap:wrap}
.word-pager .button{font-size:var(--font-size-child-control);padding:var(--space-10) var(--space-12);flex:1}
.word-pager>span{order:3;flex-basis:100%;text-align:center;font-size:var(--font-size-14)}
th,td{padding:var(--space-12) 9px}
table{font-size:var(--font-size-12)}
td a{font-size:var(--font-size-12)}
.baseline .text-link{font-size:var(--font-size-12)}
}
.unit-page-title{font-size:var(--font-size-30);margin-bottom:23px}
.math-shapes{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:var(--space-14);margin:0 0 var(--space-25);color:var(--color-math-ink)}
.math-shapes figure{margin:0;text-align:center}
.math-shapes svg{width:100%;max-height:105px}
.math-shapes figcaption{font-size:var(--font-size-12)}
.picture-chart{padding:var(--space-20);background:#edf2f4;border-radius:var(--radius-choice);margin-bottom:var(--space-24)}
.picture-chart h3{font-size:var(--font-size-19)}
.picture-chart>p{font-size:var(--font-size-13);margin:6px 0 15px}
.picture-chart th{background:transparent;width:35%}
.picture-chart td{font-size:var(--font-size-25);color:var(--color-math-ink);letter-spacing:4px}
.picture-chart td,.picture-chart th{padding:var(--space-10)}
@media(max-width:760px){
.unit-page-title{font-size:var(--font-size-25)}
.math-shapes{grid-template-columns:1fr 1fr;gap:var(--space-20)}
.picture-chart{padding:15px}
.picture-chart td{font-size:var(--font-size-21);letter-spacing:2px}
}
.long-display{font-size:var(--font-size-36);line-height:var(--line-height-choice);overflow-wrap:anywhere}
@media(max-width:760px){
.long-display{font-size:28px}
}
.subjects{grid-template-columns:repeat(3,minmax(0,1fr))}
.subject.english .subject-art,.lesson-display.english{background:var(--color-english-ground)}
.english-art{font-family:var(--font-display);font-size:65px;color:var(--color-english-ink)}
.subject-body{padding:21px var(--space-20)}
.subject-bottom{gap:var(--space-8);flex-wrap:wrap}
.lesson-glyph.english{background:var(--color-english-ground);color:var(--color-english-ink)}
.lesson-display.english .big-symbol{color:var(--color-english-ink)}
.english-practice{margin:var(--space-28) 0;padding:26px 0;border-block:1px solid var(--color-soft-divider)}
.english-practice h2{font-size:var(--font-size-24)}
.english-practice h3{font-size:var(--font-size-19);margin:var(--space-25) 0 var(--space-14)}
.english-vocab{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--space-12);margin:var(--space-20) 0}
.english-vocab button{position:relative;text-align:left;background:var(--color-paper-surface);border:1px solid #e2d4c9;border-radius:var(--radius-navigation);padding:17px 40px 17px var(--space-16);color:var(--color-english-control-ink);min-width:0;min-height:94px}
.english-vocab button:hover{background:var(--color-english-hover)}
.english-vocab button>span{display:block;font-size:var(--font-size-24);overflow-wrap:anywhere}
.english-vocab button small{display:block;color:var(--color-english-muted);margin-top:var(--space-4);font-size:var(--font-size-13)}
.english-vocab .icon{position:absolute;right:12px;top:22px;width:20px}
.english-phrases{display:grid;grid-template-columns:minmax(0,1fr);min-width:0;gap:var(--space-12);margin-bottom:23px}
.english-phrases button{display:flex;width:100%;min-width:0;white-space:normal;justify-content:space-between;gap:15px;text-align:left;align-items:center;font-size:var(--font-size-19);line-height:var(--line-height-support)}
.english-phrases button span{min-width:0;overflow-wrap:anywhere}
.alphabet-grid{display:grid;grid-template-columns:repeat(7,minmax(0,1fr));gap:var(--space-10);margin:var(--space-20) 0}
.alphabet-grid button{border:1px solid #e2d4c9;border-radius:var(--radius-control);background:var(--color-paper-surface);color:var(--color-english-control-ink);font-size:26px;min-height:64px;cursor:pointer}
.alphabet-grid span{font-size:var(--font-size-22);margin-left:7px;color:var(--color-english-muted)}
.alphabet-grid button:hover{background:var(--color-english-hover)}
.picture-choice{width:80px;height:80px;display:block;margin:auto}
.listening-target{margin-bottom:var(--space-22);background:var(--color-english-hover);border-color:#d8bda8}
.english-word-grid .word-speak{color:var(--color-english-control-ink)}
.word-meaning{font-size:var(--font-size-14);color:var(--color-english-muted);margin:var(--space-4) 0 7px;line-height:var(--line-height-choice)}
.filters{flex-wrap:wrap}
@media(max-width:1100px){
.subjects{grid-template-columns:1fr 1fr}
.subject.english{grid-column:1/-1}
.english-vocab{grid-template-columns:1fr 1fr}
}
@media(max-width:760px){
.subjects{grid-template-columns:1fr}
.subject.english{grid-column:auto}
.english-vocab{gap:var(--space-10)}
.english-vocab button{padding:15px 32px 15px var(--space-12)}
.english-vocab button>span{font-size:var(--font-size-21)}
.english-vocab button small{font-size:var(--font-size-12)}
.english-vocab .icon{right:8px;width:17px}
.english-practice h2{font-size:var(--font-size-21)}
.english-phrases button{font-size:var(--font-size-17)}
.alphabet-grid{grid-template-columns:repeat(5,minmax(0,1fr));gap:7px}
.alphabet-grid button{font-size:var(--font-size-22);min-height:56px}
.alphabet-grid span{font-size:var(--font-size-18);margin-left:var(--space-4)}
.filters{gap:6px}
.filters .filter{padding:9px var(--space-12)}
.picture-choice{width:68px;height:68px}
.word-meaning{font-size:var(--font-size-13)}
}
.audio-player{position:fixed;z-index:25;bottom:18px;left:50%;transform:translateX(-50%);display:flex;align-items:center;gap:var(--space-14);background:var(--color-paper-surface);padding:13px var(--space-16);border:1px solid #c7d3bd;border-radius:var(--radius-display);box-shadow:var(--shadow-audio);max-width:calc(100vw - 28px)}
.audio-player[hidden]{display:none}
.audio-player>span{max-width:190px;max-height:72px;overflow:auto;font-size:var(--font-size-16);color:var(--color-learning-green)}
.audio-player audio{width:245px;height:40px}
.audio-player>button{border:0;background:var(--color-control-muted);min-width:42px;min-height:42px;border-radius:6px;font-size:var(--font-size-25);color:var(--color-learning-green);cursor:pointer}
.toast{bottom:105px}
@media(max-width:760px){
.audio-player{left:14px;right:14px;transform:none;max-width:none;gap:var(--space-10);flex-wrap:wrap;padding:11px 13px}
.audio-player>span{width:calc(100% - 50px);max-width:none;max-height:48px;font-size:var(--font-size-14)}
.audio-player audio{order:2;width:100%}
.audio-player>button{margin-left:auto;min-width:36px;min-height:36px}
.toast{bottom:150px}
}
body:has(.audio-player:not([hidden])){padding-bottom:95px}
@media(max-width:760px){
body:has(.audio-player:not([hidden])){padding-bottom:160px}
}
.subjects{grid-template-columns:repeat(2,minmax(0,1fr))}
.subject.english{grid-column:auto}
.subject.science .subject-art,.lesson-display.science,.lesson-glyph.science{background:var(--color-science-ground)}
.science-art{height:112px;width:112px;color:#28645b}
.lesson-display.science .big-symbol,.lesson-glyph.science{color:var(--color-science-ink)}
.science-lab .lab-meta{font-size:var(--font-size-13);color:var(--color-activity-muted)}
.science-lab .lab-question{font-size:var(--font-size-20);margin-top:15px}
.science-lab li{padding:7px 0;font-size:var(--font-size-17);line-height:var(--line-height-lesson)}
.science-lab ul,.science-lab ol{padding-left:var(--space-24)}
.lab-safety{padding:var(--space-18) 21px;background:var(--color-science-guidance-ground);border-radius:var(--radius-choice);margin:var(--space-24) 0;color:var(--color-science-guidance-ink)}
.lab-safety h3{margin:0 0 9px}
.lab-safety p{font-size:var(--font-size-15);line-height:var(--line-height-lesson)}
.lab-explanation{margin:var(--space-20) 0;line-height:var(--line-height-lesson)}
.lab-explanation summary{cursor:pointer;padding:var(--space-12) 0;color:var(--color-learning-green);font-size:var(--font-size-16)}
.lab-explanation p{font-size:var(--font-size-16);margin-top:var(--space-10)}
.lab-notebook{margin:26px 0;padding:var(--space-24) 0;border-block:1px solid #cad6c0}
.lab-notebook h3{margin-top:0}
.lab-notebook>p{font-size:var(--font-size-13);color:var(--color-activity-muted)}
.lab-notebook label{display:block;font-size:var(--font-size-16);margin:var(--space-22) 0 var(--space-8);font-weight:var(--font-weight-medium)}
.lab-note-actions{display:flex;flex-wrap:wrap;gap:var(--space-12);align-items:center;margin:var(--space-20) 0}
.lab-notebook #lab-save-status{font-size:var(--font-size-14);line-height:var(--line-height-lesson)}
.science-program{padding:27px 0;border-block:1px solid var(--color-soft-divider);margin:26px 0}
.science-program h2{font-size:var(--font-size-24)}
.science-program>p{font-size:var(--font-size-15);color:#536452;margin:var(--space-10) 0 var(--space-20)}
.program-board{display:grid;grid-template-columns:repeat(3,1fr);gap:7px;max-width:330px;margin:var(--space-25) auto}
.program-cell{min-height:86px;background:#f1f3eb;border:1px solid #cad8c0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:var(--space-8);border-radius:var(--radius-control);color:#3f5d3a}
.program-cell small{font-size:var(--font-size-12)}
.program-cell.blocked{background:#e8ddd2;border-color:#c7b5a2;color:#704c2f}
.program-cell.visited{background:var(--color-science-ground);border-color:#86afa1}
.program-cell.current{border:2px solid var(--color-science-ink)}
.program-token{width:24px;height:24px;background:var(--color-science-ink);border-radius:50%}
.program-directions,.program-actions{display:flex;flex-wrap:wrap;gap:var(--space-10);margin-top:var(--space-18)}
.program-commands{font-size:var(--font-size-16)!important;line-height:var(--line-height-reading)!important}
.program-feedback{padding:var(--space-16) 19px;background:var(--color-mint-surface);border-radius:var(--radius-navigation);line-height:var(--line-height-lesson)}
.sky-model{margin:var(--space-25) 0}
.sky-model>div{display:grid;grid-template-columns:1fr 1fr;gap:var(--space-18)}
.sky-model svg{display:block;width:100%;max-height:210px;border:1px solid var(--color-control-border);border-radius:var(--radius-control)}
.sky-model p{font-size:var(--font-size-15);margin-top:var(--space-8);text-align:center}
.sky-model figcaption{font-size:var(--font-size-12);color:var(--color-muted-leaf);margin-top:13px;line-height:var(--line-height-support)}
@media(max-width:760px){
.subjects{grid-template-columns:1fr}
.science-lab .lab-question{font-size:var(--font-size-18)}
.science-lab li{font-size:var(--font-size-16)}
.lab-safety{padding:17px}
.lab-notebook textarea{font-size:var(--font-size-16)}
.lab-note-actions .button{font-size:var(--font-size-child-control);padding:11px var(--space-14)}
.program-directions .button{font-size:var(--font-size-child-control);padding:9px var(--space-12);flex:1;min-width:65px}
.program-actions{gap:var(--space-8)}
.program-actions .button,.program-actions .listen{font-size:var(--font-size-child-control)}
.program-cell{min-height:76px}
.science-program h2{font-size:var(--font-size-22)}
}
.subject.social .subject-art,.lesson-display.social,.lesson-glyph.social{background:var(--color-social-ground)}
.social-art{font-family:var(--font-display);font-size:var(--font-size-88);color:#72602e;line-height:1}
.lesson-display.social .big-symbol,.lesson-glyph.social{color:var(--color-social-ink)}
.social-home .social-meta{font-size:var(--font-size-13);color:var(--color-activity-muted)}
.social-home li{font-size:var(--font-size-17);line-height:var(--line-height-lesson);padding:7px 0}
.social-home ul,.social-home ol{padding-left:var(--space-24)}
.social-care{margin:var(--space-22) 0;padding:var(--space-18) 21px;border-radius:var(--radius-choice);background:var(--color-social-guidance-ground);color:var(--color-social-ink)}
.social-care h3{margin:0 0 9px}
.social-care p{font-size:var(--font-size-15);line-height:var(--line-height-lesson)}
.social-diagram{margin:0 0 27px;text-align:center}
.social-diagram svg{display:block;max-width:100%;margin:0 auto}
.thai-flag{width:270px;border:1px solid #dbd9cf}
.room-plan{width:500px;font-family:var(--font-interface);font-size:var(--font-size-15);fill:#3f533f}
.social-diagram figcaption{font-size:var(--font-size-13);color:var(--color-muted-leaf);line-height:var(--line-height-lesson);margin-top:var(--space-14)}
@media(max-width:760px){
.social-home li{font-size:var(--font-size-16)}
.social-care{padding:17px}
.room-plan{width:100%}
.social-diagram figcaption{font-size:var(--font-size-12)}
}
.subject.health .subject-art,.lesson-display.health,.lesson-glyph.health{background:var(--color-health-ground)}
.health-art{font-family:var(--font-display);font-size:var(--font-size-88);color:var(--color-health-ink);line-height:1}
.lesson-display.health .big-symbol,.lesson-glyph.health{color:var(--color-health-ink)}
.health-meta{font-size:var(--font-size-14);color:#596151}
.health-home li,.health-habits li{font-size:var(--font-size-17);line-height:var(--line-height-lesson);padding:7px 0}
.health-home ul,.health-home ol,.health-habits ol{padding-left:var(--space-24)}
.health-prepare,.health-alternate{padding:var(--space-18) 21px;margin:var(--space-22) 0;border:1px solid var(--color-health-guidance-border);background:var(--color-health-guidance-ground)}
.health-prepare h3,.health-alternate h3,.health-stop h3{margin:0 0 9px}
.health-stop{padding:var(--space-18) 21px;margin:var(--space-22) 0;border:1px solid var(--color-health-stop-border);background:var(--color-health-stop-ground)}
.health-home .health-stop p,.health-home .health-prepare li,.health-home .health-alternate p{font-size:var(--font-size-16);line-height:var(--line-height-lesson)}
.health-habits{margin-bottom:var(--space-28);border-bottom:1px solid var(--color-soft-divider);padding-bottom:var(--space-18)}
.health-habits li{text-align:left}
@media(max-width:760px){
.health-home li,.health-habits li{font-size:var(--font-size-16)}
.health-prepare,.health-alternate,.health-stop{padding:var(--space-16)}
}
.subject.art .subject-art,.lesson-display.art,.lesson-glyph.art{background:var(--color-art-ground)}
.art-letter{font-family:var(--font-display);font-size:var(--font-size-88);color:var(--color-art-ink);line-height:1}
.lesson-display.art .big-symbol,.lesson-glyph.art{color:var(--color-art-ink)}
.art-meta{font-size:var(--font-size-14);color:var(--color-art-muted)}
.art-home li{font-size:var(--font-size-17);line-height:var(--line-height-lesson);padding:7px 0}
.art-home ul,.art-home ol{padding-left:var(--space-24)}
.art-guidance{padding:var(--space-18) 21px;margin:var(--space-22) 0;border:1px solid var(--color-art-guidance-border);background:var(--color-art-guidance-ground)}
.art-guidance h3{margin:0 0 9px}
.art-home .art-guidance p{font-size:var(--font-size-16);line-height:var(--line-height-lesson)}
.art-listening{margin-bottom:26px;padding-bottom:23px;border-bottom:1px solid var(--color-art-guidance-border)}
.art-listening p,.art-shapes figcaption{font-size:var(--font-size-15);line-height:var(--line-height-lesson);color:var(--color-art-muted)}
.art-sound-buttons{display:flex;gap:var(--space-12);flex-wrap:wrap;margin:var(--space-16) 0}
.art-sound-buttons .listen{text-align:left;min-height:var(--control-min-height);white-space:normal}
.art-song-words{font-size:var(--font-size-20)!important;color:var(--color-ink-green)!important;line-height:2.2!important;margin-top:var(--space-22)}
.art-shapes{margin:0 0 26px;text-align:center}
.art-shapes svg{display:block;width:100%;max-width:480px;margin:0 auto}
.art-shapes figcaption{margin-top:var(--space-10)}
@media(max-width:760px){
.art-home li{font-size:var(--font-size-16)}
.art-guidance{padding:var(--space-16)}
.art-sound-buttons{flex-direction:column;align-items:stretch}
.art-sound-buttons .listen{width:100%}
}
.subject.work .subject-art,.lesson-display.work,.lesson-glyph.work{background:var(--color-work-ground)}
.work-letter{font-family:var(--font-display);font-size:var(--font-size-88);color:var(--color-work-ink);line-height:1}
.lesson-display.work .big-symbol,.lesson-glyph.work{color:var(--color-work-ink)}
.work-meta{font-size:var(--font-size-14);color:var(--color-work-ink)}
.work-home li{font-size:var(--font-size-17);line-height:var(--line-height-lesson);padding:7px 0}
.work-home ul,.work-home ol{padding-left:var(--space-24)}
.work-guidance{padding:var(--space-18) 21px;margin:var(--space-22) 0;border:1px solid var(--color-work-guidance-border);background:var(--color-work-guidance-ground)}
.work-guidance h3{margin:0 0 9px}
.work-home .work-guidance p{font-size:var(--font-size-16);line-height:var(--line-height-lesson)}
.work-sequence{margin-bottom:26px;padding-bottom:23px;border-bottom:1px solid var(--color-work-guidance-border)}
.work-sequence ol{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--space-14);padding-left:var(--space-25)}
.work-sequence li{padding:var(--space-8) var(--space-10);line-height:var(--line-height-support)}
.work-sequence strong{display:block;color:var(--color-work-ink);font-size:var(--font-size-20)}
.work-sequence span{font-size:var(--font-size-16)}
@media(max-width:760px){
.work-home li{font-size:var(--font-size-16)}
.work-guidance{padding:var(--space-16)}
.work-sequence ol{grid-template-columns:1fr;gap:var(--space-8)}
}
.lesson-reading{margin:var(--space-25) 0}
.lesson-reading h2{font-size:var(--font-size-25)}
.lesson-reading>p{font-size:var(--font-size-16);line-height:var(--line-height-lesson);color:var(--color-muted-leaf)}
.lesson-reading details{border-top:1px solid var(--color-soft-divider);padding:var(--space-16) 0}
.lesson-reading details:last-child{border-bottom:1px solid var(--color-soft-divider)}
.lesson-reading summary{font-size:var(--font-size-19);font-weight:var(--font-weight-semibold);cursor:pointer;min-height:var(--control-min-height);padding:var(--space-10) var(--space-4)}
.lesson-reading details p{font-size:var(--font-size-18);line-height:var(--line-height-reading);white-space:normal}
.lesson-reading .text-link{font-size:var(--font-size-15);line-height:var(--line-height-lesson)}
.lesson-reading summary:focus-visible{outline:var(--focus-width) solid var(--color-focus-terracotta);outline-offset:var(--focus-reading-offset)}
@media(max-width:760px){
.lesson-reading h2{font-size:var(--font-size-23)}
.lesson-reading summary{font-size:var(--font-size-18)}
.lesson-reading details p{font-size:var(--font-size-17)}
}
/* Shared controls and child-facing guidance, audit 2026-11-09. */
.subject-bottom a{min-height:var(--control-min-height);display:inline-flex;align-items:center;font-size:var(--font-size-16)}
.subject-bottom{align-items:center}
.subject-body p{font-size:var(--font-size-16)}
.subject-bottom>span{font-size:var(--font-size-14)}
.learning-head p,.lesson-position,.learning-actions p,.activity-note,.question-no{font-size:var(--font-size-16)!important;line-height:var(--line-height-support)}
.back,.lesson-row p,.lesson-standards,.lesson-standards summary,.text-link{font-size:var(--font-size-16)}
.back,.text-link{padding-block:var(--space-8)}
.lesson-row h3{font-size:var(--font-size-20)}
.continue-learning{margin:var(--space-20) 0}
.continue-learning h2{margin-bottom:var(--space-10)}
.continue-learning .lesson-row{border:0}
.subject-switch,.unit-directory,.current-unit{margin:var(--space-20) 0}
.subject-switch>summary,.unit-directory>summary,.current-unit>summary{cursor:pointer;min-height:var(--control-min-height);padding:var(--space-12) var(--space-4);color:var(--color-learning-green);font-size:var(--font-size-18);font-weight:var(--font-weight-semibold)}
.unit-jump a{min-height:var(--control-min-height);font-size:var(--font-size-16)}
.unit-jump{margin-top:var(--space-12)}
.subject-switch .filters{margin:var(--space-12) 0}
.home-hero{margin-top:var(--space-36)}
#audio-player>button{font:inherit;font-size:var(--font-size-16);min-width:48px;min-height:var(--control-min-height);padding:var(--space-8) var(--space-12);white-space:nowrap}
#audio-player audio[hidden]{display:none}
#audio-label{font-size:var(--font-size-16)}
@media(max-width:760px){
.choices-sentences{grid-template-columns:1fr}
.choices-sentences .choice{text-align:left;padding:var(--space-16) var(--space-18);min-height:64px;line-height:var(--line-height-choice)}
.subject{display:grid;grid-template-columns:64px minmax(0,1fr)}
.subject-art{height:100%;min-height:112px;gap:0}
.subject-art .art-tag{display:none}
.subject-art .letter-art{font-size:var(--font-size-40)}
.subject-art .letter-art:nth-child(n/**/+3){display:none}
.subject-art .equation{font-size:var(--font-size-22);letter-spacing:0}
.subject-art .english-art{font-size:var(--font-size-23)}
.subject-art .science-art{width:48px;height:48px}
.subject-art .social-art,.subject-art .health-art,.subject-art .art-letter,.subject-art .work-letter{font-size:var(--font-size-40)}
.subject-body{padding:var(--space-14) var(--space-16)}
.subject-body h3{font-size:var(--font-size-20)}
.subject-body p{font-size:var(--font-size-16)}
.subject-bottom{margin-top:var(--space-12);gap:var(--space-8)}
.subject-bottom a{margin-left:auto}
.subject-bottom>span{font-size:var(--font-size-14)}
.section-head{align-items:flex-start;flex-wrap:wrap}
.section-head .text-link{font-size:var(--font-size-16);white-space:normal}
.home-hero{padding:var(--space-24);grid-template-columns:1fr}
.home-hero h2{font-size:var(--font-size-24)}
.home-hero .hero-art{display:none}
.lesson-row h3{font-size:var(--font-size-20)}
.lesson-row .button{font-size:var(--font-size-16);margin-left:0}
.lesson-row{gap:var(--space-14)}
.learning-head{align-items:flex-start;flex-direction:column}
.learning-head .listen{font-size:var(--font-size-16)}
.listen{font-size:var(--font-size-16)}
.filters .filter{font-size:var(--font-size-16);min-height:var(--control-min-height)}
.learning-sheet{padding:var(--space-24) 19px}
.lesson-display p{font-size:var(--font-size-18)}
}
.recovery-actions{display:flex;flex-wrap:wrap;justify-content:center;gap:var(--space-12)}
/* Keep the child instruction readable without changing adult footnotes. */
.learning-sheet>p[style]{font-size:var(--font-size-16)!important;line-height:var(--line-height-support)}
/* Programmatic route focus is announced without framing the entire page. */
main:focus{outline:none}
.learning-actions .button{font-size:var(--font-size-child-control)}
.brand small{text-wrap:balance}

/* English words keep enough inline room even beside the tablet sidebar. */
.english-word-grid{grid-template-columns:repeat(auto-fit,minmax(min(100%,var(--word-card-min-width)),1fr))}
/* Keep whole English words readable on narrow screens without shrinking type. */
@media(max-width:480px){
.english-word-grid,.english-vocab{grid-template-columns:1fr}
.program-directions{display:grid;grid-template-columns:repeat(2,minmax(0,1fr))}
.program-directions .button{min-width:0}
}

/* Review practice shares lesson typography, feedback and control tokens. */
.practice-entry{margin-top:var(--space-28);padding-block:var(--space-24);border-block:1px solid var(--color-soft-divider)}
.practice-entry h2{font-size:var(--font-size-activity-heading)}
.practice-entry p,.practice-intro,.practice-note{font-size:var(--font-size-16);line-height:var(--line-height-support);margin-block:var(--space-12);color:var(--color-muted-leaf)}
.practice-entry .button,.practice-sets .button,.practice-actions .button{font-size:var(--font-size-child-control);white-space:normal}
.practice-set-row{display:flex;align-items:center;justify-content:space-between;gap:var(--space-20);padding-block:var(--space-24);border-bottom:1px solid var(--color-soft-divider);flex-wrap:wrap}
.practice-set-row:last-child{border-bottom:0}
.practice-set-row h2{font-size:var(--font-size-22)}
.practice-set-row p{font-size:var(--font-size-16);color:var(--color-muted-leaf);margin-top:var(--space-4)}
.practice-actions{display:flex;align-items:center;justify-content:center;flex-wrap:wrap;gap:var(--space-16);margin-top:var(--space-24)}
.practice-choices{grid-template-columns:repeat(2,minmax(0,1fr))}
.practice-choices .choice{min-width:0;overflow-wrap:anywhere}
@media(max-width:760px){.practice-choices.choices-sentences{grid-template-columns:minmax(0,1fr)}}
@media(max-width:480px){.practice-choices{grid-template-columns:minmax(0,1fr)}}