@import url('https://fonts.googleapis.com/css2?family=Nunito:wght@400;600;700;800;900&display=swap');
:root{font-family:Nunito,system-ui,sans-serif;color:#203b3b;background:#f8faf9;font-size:16px;--teal:#078f7b;--line:#e2e9e7}*{box-sizing:border-box}body{margin:0}button,a{ -webkit-tap-highlight-color:transparent}button{font:inherit;cursor:pointer}button:focus-visible,a:focus-visible{outline:3px solid #f8ae35;outline-offset:4px}button:disabled{cursor:not-allowed;opacity:.55}aside{position:fixed;inset:0 auto 0 0;width:245px;border-right:1px solid var(--line);background:white;padding:36px 25px;display:flex;flex-direction:column}.brand{font-size:36px;font-weight:900;letter-spacing:-1.5px;text-decoration:none;color:var(--teal);display:flex;align-items:center;gap:8px}.brandmark{display:inline-grid;place-items:center;width:36px;height:39px;background:var(--teal);color:#fff;border-radius:13px 13px 13px 4px;font-size:33px;line-height:1}.branddot{color:#f6ae37;margin-left:-9px}.nav{margin-top:57px;display:grid;gap:14px}.nav button{border:0;background:none;text-align:left;padding:15px 18px;border-radius:13px;font-size:22px;color:#718180;display:flex;gap:14px;align-items:center}.nav span{font-size:17px;font-weight:800}.nav .active{background:#e4f6ef;color:#067d6c}.sidebottom{margin-top:auto}.sidebottom>span{font-size:11px;font-weight:900;letter-spacing:1.2px;color:#8b9c99}.sidebottom p{font-weight:800;font-size:22px}.language{border-top:1px solid var(--line);padding-top:20px;font-size:14px}.shell{margin-left:245px}header{height:90px;display:flex;align-items:center;justify-content:space-between;padding:0 48px;border-bottom:1px solid var(--line);background:#fff}header>span{color:#7a8987;font-size:14px}.stats{display:flex;gap:26px;align-items:center;color:#cd8530}.avatar{background:#e5f1fa;color:#507c99;border:0;border-radius:50%;height:38px;width:38px;font-weight:900}main{max-width:1240px;margin:auto;padding:36px 48px}h1{font-size:34px;letter-spacing:-1px;line-height:1.2;margin:8px 0 12px}h2{font-size:23px;letter-spacing:-.5px;margin:0}h3{margin:0 0 6px;font-size:19px}p{line-height:1.6}.eyebrow{font-size:12px;font-weight:900;letter-spacing:1.6px;color:var(--teal)}.intro{display:flex;justify-content:space-between;align-items:center;margin-bottom:25px}.intro p{margin:0;color:#768784}.datebadge{border:1px solid var(--line);padding:8px 14px;border-radius:10px;font-size:14px;background:white}.welcome{background:#e3f4ed;border:1px solid #c8e8d9;border-radius:22px;position:relative;display:flex;align-items:center;min-height:200px;padding:28px 32px;overflow:hidden}.welcome h2{font-size:29px;max-width:430px}.welcome p{max-width:440px;color:#54766c;margin:12px 0}.welcome img{width:210px;height:200px;object-fit:contain;margin-left:auto;filter:drop-shadow(0 12px 8px #26665215)}.pill{display:inline-block;font-size:12px;letter-spacing:1px;font-weight:900;background:white;color:#2b8c75;padding:6px 10px;border-radius:6px;margin-bottom:14px}.sectionhead{display:flex;justify-content:space-between;align-items:center;margin:29px 0 17px}.sectionhead span{color:#85938f;font-size:14px}.levels{display:grid;grid-template-columns:repeat(5,1fr);gap:12px}.level{background:white;border:2px solid var(--line);border-bottom-width:4px;border-radius:15px;padding:16px 12px;text-align:left;min-height:154px;transition:.15s}.level:hover{transform:translateY(-3px);border-color:#89cdbb}.level.selected{background:#f0fbf6;border-color:#0b9d82}.level strong{font-size:26px;display:block;color:#368478}.level b{font-size:15px;display:block;margin:6px 0}.level small{font-size:13px;line-height:1.5;color:#7b8c86;display:block}.selectionline{margin-top:14px;display:flex;justify-content:space-between;align-items:center;color:#7b8a85;font-size:14px}.primary{background:var(--teal);color:white;border:0;border-bottom:4px solid #086d60;border-radius:12px;padding:13px 24px;font-weight:900}.primary:hover{background:#08a08a}.secondary{border:1px solid var(--line);background:white;border-radius:10px;padding:11px 16px;color:#4e6b62;font-weight:800}.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.card{border:1px solid var(--line);border-bottom:3px solid var(--line);background:white;border-radius:18px;overflow:hidden;text-align:left;padding:0;color:inherit}.photo{height:128px;position:relative;background:#e1ece8;overflow:hidden}.photo img{width:100%;height:100%;object-fit:cover;transition:transform .3s}.card:hover img{transform:scale(1.05)}.phototag{position:absolute;bottom:10px;left:12px;background:white;padding:4px 8px;border-radius:6px;font-size:12px;font-weight:900}.cardcontent{padding:17px}.cardcontent p{font-size:14px;color:#87958d;margin:0}.cardfoot{display:flex;justify-content:space-between;margin-top:17px;font-size:13px;font-weight:800;color:var(--teal)}.bottomnote{display:flex;gap:15px;border:1px solid #efe2c6;background:#fffaf0;padding:18px 22px;border-radius:14px;margin-top:24px}.bottomnote p{margin:2px 0;color:#917b56;font-size:14px}.bottomnote strong{color:#79663c}.bottomnote>span{font-size:26px}footer{max-width:1240px;margin:0 auto;padding:15px 48px 28px;display:flex;justify-content:space-between;color:#91a19a;font-size:12px}dialog{border:0;border-radius:24px;padding:0;width:min(660px,94vw);max-height:92vh;box-shadow:0 30px 100px #14372e40}dialog::backdrop{background:#183f37a6;backdrop-filter:blur(5px)}#lessonbody{padding:30px}.lessonheader{display:flex;align-items:center;gap:18px}.close{border:0;background:#f1f5f3;border-radius:50%;width:36px;height:36px;font-size:23px;color:#71837a}progress{width:100%;height:12px;accent-color:var(--teal)}.question{margin:28px 0 20px}.question p{color:#73867e}.question h2{font-size:26px}.question img{height:160px;width:100%;object-fit:cover;border-radius:14px;margin-bottom:18px}.options{display:grid;gap:10px}.option{background:white;border:2px solid var(--line);border-bottom-width:4px;border-radius:12px;padding:14px;text-align:left}.option.selected{border-color:var(--teal);background:#e5f7ef}.feedback{padding:15px;background:#eff8f0;border-radius:10px;margin-top:18px;line-height:1.6}.feedback.bad{background:#fff1e9;color:#98583a}.lessonactions{display:flex;justify-content:space-between;gap:10px;margin-top:22px}.speak{background:#e6f6f0;border:1px solid #b8ddce;padding:20px;border-radius:14px;text-align:center}.quote{font-size:24px;font-weight:800;line-height:1.4;margin:18px 0}.input{width:100%;font:inherit;padding:14px;border:2px solid var(--line);border-radius:10px;margin-top:14px}.metricgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:15px;margin-top:28px}.metric{background:white;border:1px solid var(--line);border-radius:15px;padding:24px}.metric strong{display:block;font-size:36px;color:var(--teal)}.muted{color:#7a8b83}.complete{text-align:center;padding:25px 5px}.complete img{height:150px}.complete h2{font-size:30px}.complete .primary{margin-top:20px}ul.history{list-style:none;padding:0}ul.history li{background:white;padding:18px;border-bottom:1px solid var(--line)}@media(min-width:1500px){main{padding-top:48px}.welcome{min-height:235px}.photo{height:155px}}@media(max-width:1100px){aside{width:200px;padding:28px 18px}.shell{margin-left:200px}header{padding:0 26px}main{padding:26px}.welcome{padding:23px}.welcome img{width:150px}.levels{gap:8px}.level{padding:12px 8px}footer{padding:20px 26px;gap:20px}}@media(max-width:760px){aside{position:sticky;top:0;z-index:2;width:100%;height:72px;flex-direction:row;align-items:center;justify-content:space-between;padding:12px 18px;border-bottom:1px solid var(--line)}.brand{font-size:29px}.brandmark{width:29px;height:32px;font-size:27px}.nav{display:flex;margin:0;gap:4px}.nav button{padding:9px;font-size:22px}.nav span,.sidebottom{display:none}.shell{margin:0}header{height:62px;padding:0 20px}header>span{font-size:12px}.stats{gap:14px;font-size:14px}.avatar{display:none}main{padding:25px 18px}h1{font-size:29px}.intro{align-items:flex-start}.datebadge{display:none}.welcome{padding:21px;min-height:190px}.welcome h2{font-size:23px}.welcome p{font-size:14px}.welcome img{width:105px;height:145px;margin-right:-10px}.pill{font-size:10px}.levels{grid-template-columns:repeat(2,1fr)}.level{min-height:120px;padding:13px}.level:last-child{grid-column:span 2;min-height:90px}.level strong{font-size:23px}.level small{font-size:14px}.cards{grid-template-columns:1fr}.card{display:grid;grid-template-columns:115px 1fr}.photo{height:100%;min-height:145px}.cardcontent{padding:17px}.sectionhead span{font-size:12px}.selectionline{gap:15px;align-items:flex-start}.selectionline .primary{white-space:nowrap;padding:12px 16px}.metricgrid{gap:8px}.metric{padding:14px}.metric strong{font-size:26px}.metric span{font-size:13px}footer{display:block;padding:0 18px 22px}footer span{display:block;margin-top:5px}#lessonbody{padding:23px}.quote{font-size:21px}}
.account-wrap{padding:28px}.account-wrap>.close{float:right}.account-wrap h2{padding-top:16px}.account-wrap p{color:#627b72}.account-wrap label{display:block;margin:16px 0 8px;font-weight:800}.account-wrap .input{display:block;margin:6px 0 16px}.account-wrap form .primary{width:100%;margin:8px 0 16px}#account-status:empty{display:none}#account-status{padding:12px;background:#edf5f0;border-radius:10px}#sync-status{max-width:440px}#cloud-refresh{font-size:12px;padding:5px 10px}@media(max-width:760px){header>span{display:none}.stats{width:100%;justify-content:space-between}#account-button{font-size:13px;padding:7px 12px}footer #cloud-refresh{margin-top:8px}}
.lessonmeta{display:flex;justify-content:space-between;gap:15px;margin:24px 0 15px;color:#52786c;font-size:12px;font-weight:900;letter-spacing:.5px}.audio-controls{display:flex;align-items:center;gap:12px;margin:24px 0 16px}.audio-main{background:#e3f5ed;border:2px solid #aad8c8;border-bottom-width:5px;border-radius:17px;padding:16px 26px;font-size:26px;color:#078771;display:flex;gap:10px;align-items:center}.audio-main span{font-size:18px;font-weight:900}.text-button{background:none;border:0;color:#52786c;text-decoration:underline;text-underline-offset:3px;padding:8px 0;font-size:14px}.option{display:flex;gap:14px;align-items:center;line-height:1.55;min-height:62px}.option-number{flex-shrink:0;border:1px solid #d5e3dc;border-radius:7px;width:28px;height:28px;display:grid;place-items:center;font-size:13px;color:#6b887c}.option:disabled{opacity:1;cursor:default}.correct-option{border-color:#0b9d82;background:#e7f9ef}.incorrect-option{border-color:#de9978;background:#fff2eb}.feedback p{margin:8px 0}.feedback small{font-size:13px}.feedback details{margin-top:12px}.feedback summary{cursor:pointer}.result-metrics{display:flex;justify-content:center;gap:18px;margin:24px 0}.result-metrics>div{border:1px solid #c7e4d7;border-radius:14px;padding:16px;min-width:140px}.result-metrics b{display:block;color:#078771;font-size:29px}.result-metrics span{font-size:13px;color:#6b8479}.speech-note{font-size:13px}#transcript-text{background:#f0f6f3;padding:14px;border-radius:10px;color:#365a4d}.keyboard-hint{font-size:12px}@media(max-width:760px){.lessonmeta{font-size:11px}.keyboard-hint{display:none}.lessonactions{justify-content:flex-end}.option{padding:12px;gap:10px;font-size:15px}.audio-main{padding:12px 18px}.result-metrics{gap:10px}.result-metrics>div{min-width:110px;padding:12px}.question h2{font-size:23px}}
.auth-brand{display:flex;flex-direction:column;align-items:center;gap:0;margin:0 auto 18px}.auth-brand img{width:104px;height:110px;object-fit:contain}.auth-brand span{font-size:30px;color:var(--teal);font-weight:900;letter-spacing:-1px}#account-dialog{max-width:510px}.account-wrap{padding:26px 38px 30px}.account-wrap h2{font-size:27px;text-align:center;line-height:1.25}.account-wrap h2+p{text-align:center;font-size:15px}.auth-switch{text-align:center;padding:6px 0 12px;font-size:15px}.auth-switch button{font-weight:900;color:var(--teal);font-size:16px}.account-wrap .muted{font-size:12px;text-align:center}@media(max-width:760px){.account-wrap{padding:20px 24px}.auth-brand img{width:80px;height:86px}.account-wrap h2{font-size:24px}.auth-brand{margin-bottom:10px}}
/* Clear navigation, compact phone cards and mandatory account entry. */
[hidden]{display:none!important}.auth-locked{background:#eef8f3}.auth-locked aside,.auth-locked .shell{display:none}.auth-locked #account-dialog::backdrop{background:#eef8f3;backdrop-filter:none}.auth-locked #account-dialog{box-shadow:0 16px 65px #064e3b14;border:1px solid #dcebe3}.auth-label{display:block;text-align:center;font-size:11px;font-weight:900;letter-spacing:1.6px;color:#078771}.auth-help{font-size:14px;line-height:1.5!important;color:#677e73}.auth-benefits{display:flex;flex-wrap:wrap;gap:8px 15px;justify-content:center;border-top:1px solid #e2eae6;padding-top:17px;font-size:12px;color:#638173}.auth-locked .account-wrap h2{font-size:32px}.auth-locked .auth-brand img{width:90px;height:94px}.nav button{font-size:16px}.nav span{display:block}.nav button.active{box-shadow:inset 3px 0 0 #079780}.sectionhead{gap:12px;align-items:flex-start}.sectionhead h2{flex:1;min-width:0}.sectionhead>span{flex-shrink:0;max-width:42%;text-align:right;line-height:1.5}.photo .phototag{max-width:calc(100% - 20px);font-size:10px;letter-spacing:.3px;white-space:normal;line-height:1.4;left:10px;bottom:10px}.cardcontent{min-width:0}.cardfoot{flex-wrap:wrap;gap:6px}.daily-goal{display:flex;justify-content:space-between;align-items:center;gap:15px;padding:20px 24px;background:#fff;border:1px solid #dce8e1;border-radius:16px;margin-top:26px}.daily-goal h3{margin:7px 0}.daily-goal p{margin:0;color:#6d8377;font-size:14px}.goal-count{font-size:25px;font-weight:900;color:#078771;background:#e8f7ee;padding:15px;border-radius:50%;flex-shrink:0}.word-bank,.sentence-answer{display:flex;flex-wrap:wrap;gap:8px}.sentence-answer{min-height:84px;align-content:center;padding:14px;margin:18px 0;border:2px dashed #c5dcd1;border-radius:12px;background:#f8fcfa}.word-chip{font:inherit;font-size:16px;padding:9px 12px;border:1px solid #c7dbd1;border-bottom:3px solid #b6d0c3;background:white;border-radius:9px;color:#294d3e}.word-chip.picked{background:#e0f4e9;border-color:#8bc8aa}.word-chip:disabled{opacity:.25}.complete .text-button{display:block;margin:12px auto}.word-hint{overflow-wrap:anywhere;letter-spacing:2px}.account-wrap{overflow-wrap:anywhere}#account-status{font-size:14px;line-height:1.6}
@media(max-width:760px){aside{position:sticky;top:0;height:70px;padding:14px 18px;justify-content:center}.brand{font-size:30px}.nav{position:fixed;left:0;right:0;bottom:0;z-index:20;background:#fff;border-top:1px solid #dce7e1;display:grid;grid-template-columns:repeat(3,1fr);gap:5px;padding:9px 12px max(12px,env(safe-area-inset-bottom))}.nav button{display:flex;justify-content:center;padding:12px 8px;border-radius:10px;min-height:44px}.nav button.active{box-shadow:none;background:#e2f5eb}.nav span{display:block;font-size:14px}.shell{padding-bottom:90px}header{height:59px}.stats{gap:12px}.sectionhead{flex-direction:column;gap:5px;margin:27px 0 14px}.sectionhead>span{max-width:none;text-align:left;font-size:13px}.sectionhead h2{font-size:23px}.card{grid-template-columns:92px minmax(0,1fr);border-radius:14px}.photo{min-height:143px}.phototag{font-size:9px!important;padding:4px 5px;left:7px!important;max-width:calc(100% - 14px)!important}.cardcontent{padding:15px 14px}.cardcontent h3{font-size:18px;line-height:1.3}.cardcontent p{font-size:13px;line-height:1.5;margin-top:7px}.cardfoot{font-size:12px;margin-top:13px}.cardfoot>span:last-child{display:none}.daily-goal{padding:17px}.daily-goal h3{font-size:17px}.daily-goal p{font-size:13px}.goal-count{font-size:20px;padding:12px}.bottomnote{padding:15px;gap:10px}.bottomnote strong{font-size:15px}.bottomnote p{font-size:13px}.bottomnote>span{display:none}h1{font-size:28px;line-height:1.25}.auth-locked #account-dialog{width:100%;max-width:520px;max-height:100dvh;margin:auto;border:0;box-shadow:none;border-radius:0}.auth-locked .account-wrap{padding:24px 27px max(24px,env(safe-area-inset-bottom))}.auth-locked .auth-brand{margin-bottom:12px}.auth-locked .account-wrap h2{font-size:31px}.auth-help{font-size:13px}.word-chip{font-size:15px;padding:8px 10px}.lessonmeta{flex-wrap:wrap}dialog{max-height:94dvh}.lessonactions{position:sticky;bottom:-23px;padding:13px 0;background:white;border-top:1px solid #edf2ee}footer{font-size:12px}}
@media(max-width:350px){main{padding-left:13px;padding-right:13px}.card{grid-template-columns:78px minmax(0,1fr)}.cardcontent{padding:12px 10px}.cardcontent h3{font-size:17px}.nav span{font-size:13px}.auth-locked .account-wrap{padding:18px}}
.auth-channels{display:flex;gap:8px;margin:20px 0}.auth-channels button{flex:1;padding:12px 8px;border:1px solid #bfdacf;border-radius:12px;background:white;color:#315c4c;font:inherit;cursor:pointer}.auth-channels button[aria-pressed=true]{background:#e2f6ed;border:2px solid #078771;color:#066958;font-weight:800}.account-wrap input[type=date]{min-width:0;width:100%;box-sizing:border-box}#back-auth{display:block;margin:18px auto}#verify-target{font-weight:700;overflow-wrap:anywhere}.account-wrap button:disabled{opacity:.6;cursor:wait}

/* Keep the lesson focused with no underlying page visible. */
#lesson::backdrop{background:#f8faf9;backdrop-filter:none;-webkit-backdrop-filter:none}
body:has(#lesson[open]){overflow:hidden}
body:has(#lesson[open])>aside,body:has(#lesson[open])>.shell{visibility:hidden}

/* Responsive page frame: keep branding and navigation together. */
html{-webkit-text-size-adjust:100%;scroll-padding-top:24px}
button{color:inherit}
aside{height:100dvh;overflow-y:auto;padding-top:max(28px,env(safe-area-inset-top));gap:24px}
.brand{flex-shrink:0;white-space:nowrap;line-height:1.2}
.brandmark{flex-shrink:0}
.nav{margin-top:8px;gap:8px}
.sidebottom{padding-top:24px}
.intro{gap:24px;align-items:flex-start}
.intro>div,.welcome>div,.selectionline>span{min-width:0}
.datebadge{flex-shrink:0;white-space:nowrap;margin-top:8px}
h1{font-size:clamp(26px,2.6vw,34px);line-height:1.25;text-wrap:balance}
.welcome{gap:24px}
.welcome img{flex-shrink:0}
.levels{grid-template-columns:repeat(5,minmax(0,1fr))}
.level{color:#203b3b;min-width:0;overflow-wrap:break-word}
.cards{grid-template-columns:repeat(3,minmax(0,1fr))}
.selectionline{gap:24px;line-height:1.6}
.selectionline .primary{flex-shrink:0}
footer{gap:20px;flex-wrap:wrap}
.lessonheader .close{flex-shrink:0;width:40px;height:40px}
.lessonheader progress{min-width:0;flex:1}
.lessonheader>span{white-space:nowrap}
.option{color:#203b3b}
#lesson{overscroll-behavior:contain}
@media(min-width:761px) and (max-width:1280px){
 aside{position:relative;inset:auto;width:100%;height:auto;overflow:visible;flex-direction:row;align-items:center;justify-content:space-between;padding:22px 32px;border-right:0;border-bottom:1px solid var(--line);gap:24px}
 .brand{font-size:32px}
 .nav{display:flex;margin:0;gap:8px}
 .nav button{padding:12px 20px;white-space:nowrap}
 .sidebottom{display:none}
 .shell{margin-left:0}
 header{height:64px;padding:0 32px}
 main{padding:28px 32px}
 .welcome{padding:26px 28px}
 .welcome img{width:180px;height:185px}
 footer{padding:20px 32px 40px}
}
@media(max-width:760px){
 aside{position:relative;inset:auto;height:auto;min-height:72px;overflow:visible;padding:18px 20px;border-right:0;justify-content:flex-start;gap:0}
 .brand{font-size:30px}
 .nav{margin:0;gap:5px;padding-bottom:max(12px,env(safe-area-inset-bottom))}
 .sidebottom{display:none}
 .shell{margin-left:0;padding-bottom:100px}
 header{height:52px}
 .stats{justify-content:flex-end;gap:22px}
 main{padding:24px 20px}
 .intro{gap:0}
 .welcome{gap:14px;padding:20px}
 .welcome img{width:100px;height:140px;margin:0}
 .levels{grid-template-columns:repeat(2,minmax(0,1fr))}
 .cards{grid-template-columns:minmax(0,1fr)}
 .selectionline{flex-direction:column;align-items:stretch;gap:14px}
 .selectionline .primary{width:100%;white-space:normal}
 .metricgrid{grid-template-columns:repeat(3,minmax(0,1fr))}
 .metric{min-width:0;overflow-wrap:break-word}
 .audio-controls{flex-wrap:wrap}
 .lessonactions{bottom:0;flex-wrap:wrap;gap:12px}
 #lessonbody{padding:20px}
 #lesson{max-height:calc(100dvh - 24px);width:calc(100% - 24px)}
}
@media(max-width:420px){
 .welcome{display:grid;grid-template-columns:minmax(0,1fr);gap:8px}
 .welcome img{width:120px;height:120px;justify-self:center}
 .welcome h2{font-size:24px}
 .metric{padding:12px 8px}
 .metric strong{font-size:24px}
}

/* Learning areas: languages, programming, maths and science. */
.course-picker{background:#fff;border:1px solid var(--line);border-radius:20px;padding:24px;margin-bottom:30px}
.course-picker-top{display:flex;justify-content:space-between;align-items:center;gap:20px;margin-bottom:20px}
.course-picker h2{margin-top:7px;font-size:24px}
.course-tabs{display:flex;gap:4px;padding:4px;background:#edf4f1;border-radius:12px;flex-shrink:0}
.course-tabs button{border:0;padding:11px 20px;border-radius:9px;background:transparent;font-weight:800;color:#53746a}
.course-tabs button[aria-pressed=true]{background:#078f7b;color:white;box-shadow:0 2px 5px #0b604b18}
.language-picker{display:grid;grid-template-columns:minmax(0,1fr) 44px minmax(0,1fr);align-items:end;gap:14px}
.language-picker label{font-size:13px;font-weight:800;color:#52786c;min-width:0}
.language-picker select{display:block;width:100%;min-width:0;margin-top:8px;padding:13px 34px 13px 12px;background:#f8fbfa;border:1px solid #cbded5;border-radius:10px;font:inherit;font-size:16px;color:#203b3b;text-overflow:ellipsis}
.swap-button{height:46px;border:1px solid #cbded5;background:white;border-radius:10px;font-size:24px;color:var(--teal)}
.course-help{font-size:13px;color:#6c8077;margin:14px 0 0;line-height:1.6}
.code-picker{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}
.code-picker button{display:flex;align-items:center;gap:12px;text-align:left;padding:16px;border:2px solid var(--line);border-radius:12px;background:#fff;min-width:0}
.code-picker button[aria-pressed=true]{background:#eaf8f1;border-color:var(--teal)}
.code-picker strong{display:block;font-size:16px}.code-picker small{display:block;color:#6c8077;font-size:12px;line-height:1.5;margin-top:6px}
.code-icon{display:grid;place-items:center;flex-shrink:0;width:40px;height:40px;background:#203b3b;color:#b0edcd;border-radius:10px;font:800 16px monospace}
.hub-intro{margin-bottom:25px}.hub-intro p{margin-top:8px}
.hub-lessons{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;margin-top:24px}
.hub-lesson{display:flex;flex-direction:column;align-items:flex-start;text-align:left;background:white;border:1px solid var(--line);border-bottom:4px solid var(--line);border-radius:18px;padding:26px;color:inherit;min-width:0}
.hub-lesson:hover{border-color:#69b9a5}.unit-tag{display:grid;place-items:center;min-width:52px;height:52px;border-radius:15px;background:#e5f5ed;color:var(--teal);font-size:22px;font-weight:900;margin-bottom:24px;padding:6px}
.hub-lesson h3{font-size:23px;margin-top:8px;line-height:1.4}.hub-lesson p{font-size:14px;color:#70857b}
.lesson-card-bottom{margin-top:auto;padding-top:20px;color:var(--teal);font-weight:800;font-size:14px}
.hub-dialog-header{display:flex;align-items:center;justify-content:space-between;gap:16px}.hub-dialog-header .close{flex-shrink:0}
.hub-lesson-title{margin:24px 0}.phrase-list{border:1px solid var(--line);border-radius:12px;overflow:hidden}
.phrase-row{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr) 40px;gap:14px;align-items:center;padding:13px;border-bottom:1px solid var(--line);font-size:15px;line-height:1.5}
.phrase-row:last-child{border-bottom:0}.phrase-row strong{color:#176e59}.phrase-audio{height:36px;width:36px;background:#e6f5ee;border:0;border-radius:9px;color:#0a7760;font-size:20px}
.hub-start{width:100%;margin-top:16px}.code-explainer{margin:22px 0}.code-explainer p{color:#5b7569;font-size:15px}
.code-explainer pre{white-space:pre-wrap;overflow-wrap:anywhere;background:#183a30;color:#d5f6e4;border-radius:12px;padding:18px;line-height:1.7;font-size:14px}
.code-question{white-space:pre-wrap;overflow-wrap:anywhere;line-height:1.55!important}.answer-text{white-space:pre-wrap;overflow-wrap:anywhere;min-width:0}
#hub-audio-status{font-size:13px;color:#657c70}#hub-audio-status:empty{display:none}
.language{overflow-wrap:anywhere}
@media(max-width:1000px){.code-picker{grid-template-columns:1fr}.code-picker small{margin-top:3px}}
@media(max-width:760px){
 .course-picker{padding:18px;border-radius:16px;margin-bottom:25px}.course-picker-top{align-items:flex-start;flex-direction:column;gap:16px}.course-picker h2{font-size:23px}
 .course-tabs{width:100%}.course-tabs button{flex:1}.language-picker{grid-template-columns:minmax(0,1fr) 40px;gap:12px}.language-picker label:first-child{grid-column:1}.swap-button{grid-column:2;grid-row:1 / span 2;align-self:center}.language-picker label:last-child{grid-row:2;grid-column:1}
 .hub-lessons{grid-template-columns:minmax(0,1fr)}.hub-lesson{padding:22px}.phrase-row{gap:10px;padding:12px 10px;font-size:14px;grid-template-columns:minmax(0,1fr) minmax(0,1fr) 36px}
 .hub-lesson-title{font-size:24px}.code-explainer pre{font-size:13px;padding:14px}
}

/* Prova learning dashboard. */
.academy-nav{display:flex;align-items:center;gap:7px;flex-wrap:wrap;margin-bottom:24px;padding-bottom:16px;border-bottom:1px solid var(--line)}
.academy-nav button{padding:11px 14px;border:0;border-radius:10px;background:transparent;color:#527269;font-size:14px;font-weight:800;min-height:44px}
.academy-nav button[aria-current=page]{background:#203b3b;color:white}
.prova-badge{margin-left:auto;font-size:10px;letter-spacing:1px;font-weight:900;color:#087b64;background:#e3f5eb;padding:8px 12px;border-radius:20px;white-space:nowrap}
.learning-banner{display:flex;align-items:center;justify-content:space-between;gap:24px;background:#e5f5ed;border:1px solid #c8e7d8;border-radius:20px;padding:25px;margin-bottom:24px}
.learning-banner h2{font-size:26px;margin-top:8px}.learning-banner p{font-size:14px;color:#53766a;margin-bottom:0}.banner-actions{display:grid;gap:10px;flex-shrink:0}.banner-actions .primary{white-space:nowrap}
.academy-panel{background:#fff;border:1px solid var(--line);border-radius:20px;padding:30px}.academy-panel>p{color:#647c72;max-width:740px}.academy-panel>h2{margin-top:28px}
.goal-strip{display:flex;gap:12px;flex-wrap:wrap;margin:20px 0}.goal-strip span{background:#edf7f1;border:1px solid #d8e9df;border-radius:10px;padding:10px 14px;font-size:14px;font-weight:800;color:#397461}
.path-steps{padding:0;margin:28px 0;list-style:none;display:grid;gap:14px}.path-steps li{border:1px solid var(--line);border-radius:14px;padding:22px;display:flex;gap:18px}.path-steps li:has(>b){display:block}.path-steps b{font-size:18px}.path-steps p{color:#6b8178;font-size:14px;margin:8px 0 16px}.path-steps .current-step{border:2px solid #078f7b;background:#f4fcf7}.path-number{height:36px;min-width:36px;display:grid;place-items:center;border-radius:50%;background:#dff3e8;color:var(--teal);font-weight:900}
.rank-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin:28px 0}.rank-card{padding:23px 12px;border:2px solid var(--line);border-radius:15px;display:flex;flex-direction:column;align-items:center;gap:10px;background:#f9fbfa}.rank-card>span{font-size:36px}.rank-card b{font-size:18px}.rank-card small{color:#6b8178}.rank-card.silver>span{color:#8696a2}.rank-card.gold>span{color:#c99b2c}.rank-card.platinum>span{color:#2c9b95}.rank-card.diamond>span{color:#7377ca}.rank-card.active-rank{border-color:#078f7b;background:#eef9f3}
.league-progress{display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;margin:25px 0}.league-progress>span{font-size:14px;color:#648075}.league-progress progress{flex-basis:100%;width:100%}.leader-row{display:flex;align-items:center;justify-content:space-between;gap:15px;background:#edf8f1;padding:18px;border-radius:12px;margin-top:20px}
.plan-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;margin:26px 0}.plan-card{border:1px solid #cde3d8;border-radius:16px;padding:24px}.plan-price{font-size:42px;font-weight:900;color:#078f7b;margin:14px 0}.plan-price small{font-size:16px;font-weight:600}.plan-card ul{padding-left:20px;line-height:1.9;font-size:14px;color:#577365}.plan-card p{font-size:14px;color:#577365}.payment-note{border-top:1px solid var(--line);padding-top:15px}.reward-box{background:#fff9ea;border:1px solid #eadcb4;border-radius:16px;padding:24px}.reward-box p{font-size:14px}.reward-box strong{color:#8b691a}
.mistake-list{display:grid;gap:15px;margin-top:25px}.mistake-list article{border:1px solid var(--line);border-radius:14px;padding:20px}.mistake-list h3{font-size:18px;margin:10px 0 15px}.mistake-list details{background:#f0f8f3;padding:12px 15px;border-radius:10px}.mistake-list summary{cursor:pointer;font-size:14px;font-weight:800;color:#237357}.mistake-list details p{font-size:14px}.empty-learning{padding:28px;background:#f3faf6;border-radius:14px;margin-top:24px}
.placement-question{margin:28px 0;line-height:1.6;overflow-wrap:anywhere}.exam-note{font-size:12px;margin:20px 0 0}.tier-results{display:flex;justify-content:center;gap:14px;margin:24px 0}.tier-results>div{display:grid;gap:8px;background:#edf7f1;border-radius:12px;padding:16px 24px}.tier-results b{color:#078f7b}.study-examples{display:grid;gap:12px;margin-top:24px}.study-examples details{padding:17px;border:1px solid #d5e8dd;border-radius:12px}.study-examples summary{cursor:pointer;line-height:1.6;font-weight:700}.study-examples p{color:#137b5a;line-height:1.8}.study-answer{background:#e1f4e8;padding:6px 10px;border-radius:7px;color:#167259;font-weight:900}
.phrase-meaning{border:0;background:transparent;padding:5px 0;text-align:left;color:#176e59;font-weight:800;line-height:1.5;text-decoration:underline dotted;text-underline-offset:5px;overflow-wrap:anywhere}
.word-meaning{position:sticky;bottom:12px;z-index:3;background:#163b30;color:#fff;border:1px solid #2d6d55;box-shadow:0 10px 35px #14382e30;border-radius:15px;padding:22px;display:grid;gap:12px;margin-top:18px}.word-meaning .close{position:absolute;right:10px;top:10px}.word-meaning strong{font-size:24px;padding-right:35px}.word-meaning>span{font-size:18px;color:#c6f1dc}
@media(max-width:760px){.academy-nav{gap:5px}.academy-nav button{padding:10px;font-size:13px}.prova-badge{margin-left:0}.learning-banner{flex-direction:column;align-items:stretch;padding:20px;gap:18px}.learning-banner h2{font-size:24px}.banner-actions{width:100%}.academy-panel{padding:20px}.rank-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.rank-card{padding:18px 10px}.plan-grid{grid-template-columns:1fr}.path-steps li{padding:17px;gap:12px}.goal-strip{gap:7px}.goal-strip span{padding:9px 10px;font-size:12px}.tier-results{gap:8px}.tier-results>div{padding:14px 18px}.leader-row{font-size:14px}.reward-box{padding:20px}}

/* Consistent media controls and code/number layout across tablet browsers. */
.media-button,.meaning-actions{display:inline-flex;align-items:center;gap:10px}.meaning-actions{display:flex;flex-wrap:wrap;margin-top:8px}
.media-button svg,.audio-main svg,.phrase-audio svg{flex:0 0 20px;vertical-align:middle}
.audio-main svg{width:28px;height:28px}.phrase-audio{display:grid;place-items:center}
#hub-transcript-text{padding:15px;background:#edf7f2;border:1px solid #cfdfd7;border-radius:12px;line-height:1.8}
.writing-label{display:block;font-weight:800;font-size:14px;color:#52786c;margin-bottom:8px}
#hub-written{margin:0;min-height:54px;font-size:18px;line-height:1.6}
#hub-written:disabled{opacity:1;background:#f2f7f4;color:#35564a}
.feedback-word{display:block;font-size:19px;margin:12px 0}
.question-code{direction:ltr;text-align:left;unicode-bidi:isolate;background:#183a30;color:#e0f8eb;border-radius:14px;padding:20px;white-space:pre;overflow-x:auto;max-width:100%;font-size:16px;line-height:1.85;tab-size:4;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;letter-spacing:0;font-variant-ligatures:none}
.question-code code{font:inherit;white-space:inherit}.code-options .answer-text{direction:ltr;text-align:left;unicode-bidi:isolate;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:14px;line-height:1.7;font-variant-ligatures:none}
.option{display:grid;grid-template-columns:30px minmax(0,1fr);align-items:center;gap:14px;width:100%;min-width:0}
.option-number{width:30px;height:30px;flex:none;line-height:1;font-family:system-ui,sans-serif;font-size:13px;font-weight:700;font-variant-numeric:tabular-nums;text-align:center;align-self:start;margin-top:2px}
.answer-text{display:block;min-width:0;overflow-wrap:anywhere}
.lessonheader>span{font-variant-numeric:tabular-nums;min-width:42px;text-align:right;flex-shrink:0}
.rank-icon{display:block;width:48px;height:48px}.rank-card>span{display:grid;place-items:center;height:52px;width:52px}
.path-steps .path-number{flex:0 0 36px;line-height:1;font-variant-numeric:tabular-nums;align-self:flex-start}.path-steps li>div{min-width:0}
.word-meaning .secondary{min-height:44px}#meaning-audio-status{margin:0;font-size:13px;line-height:1.5;color:#d4eedf}#meaning-audio-status:empty{display:none}
.lesson-vocabulary{display:flex;gap:10px;flex-wrap:wrap;padding-top:14px;border-top:1px solid var(--line);margin-top:18px}.lesson-vocabulary .phrase-meaning{background:#eff8f3;padding:8px 12px;border:1px solid #cddfd4;border-radius:9px}
@media(max-width:760px){.question-code{padding:16px;font-size:14px}.code-options .answer-text{font-size:13px}.option{gap:10px}.audio-controls{gap:10px}.word-meaning{padding:18px}.meaning-actions .secondary{font-size:14px;padding:10px 14px}}

/* Optional passwordless account access; learning remains available to guests. */
#account-dialog{width:min(480px,calc(100vw - 28px));max-height:calc(100dvh - 32px);box-sizing:border-box;padding:32px;border:1px solid #d8e8e3;border-radius:24px;overflow:auto;color:#203e3b;background:#fff;text-align:left}
#account-dialog::backdrop{background:rgba(17,47,42,.82)}
#account-dialog .account-close{position:absolute;right:14px;top:10px;border:0;background:transparent;font-size:30px;color:#46645f;cursor:pointer;min-width:44px;min-height:44px}
.account-symbol{display:grid;place-items:center;width:48px;height:48px;border-radius:15px;background:#099c85;color:white;font-size:38px;font-weight:800}
#account-dialog h2{font-size:27px;margin:20px 0 14px}#account-dialog p{line-height:1.6;overflow-wrap:anywhere;font-size:15px}
.account-tabs{display:flex;gap:8px;padding:5px;background:#f0f7f4;border-radius:14px;margin-bottom:20px}.account-tabs button{flex:1;border:0;border-radius:10px;padding:12px;background:transparent;color:#46645f;font:inherit;font-weight:700;cursor:pointer}.account-tabs button[aria-pressed=true]{background:#fff;color:#008775;box-shadow:0 2px 6px #163c3412}
#account-form{display:grid;gap:12px}#account-form label{font-weight:700;font-size:14px}#account-form input{box-sizing:border-box;width:100%;padding:14px;border:1px solid #bacfc7;border-radius:12px;font:inherit;font-size:16px;background:#fff;color:#203e3b}#account-form input:focus{outline:3px solid #bce9da;border-color:#008775}#account-form .primary{padding:14px;border-radius:12px;background:#009a83;color:white;border:0;font:inherit;font-weight:700;cursor:pointer}
#account-dialog button:disabled{opacity:.55;cursor:wait}.account-actions{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}.account-actions button{font-size:13px;padding:10px}.account-note{background:#f0f7f4;border-radius:12px;padding:13px;line-height:1.6;font-size:13px;color:#526e64}.account-error{color:#b63333}.account-guest{border:0;background:transparent;color:#087f6b;cursor:pointer;width:100%;padding:17px 0 0;font:inherit;font-size:14px}.account-email{font-weight:700}#account-button{white-space:nowrap;font-size:13px;padding:9px 12px}.stats{flex-wrap:wrap}
@media(max-width:520px){#account-dialog{padding:24px 20px}header .stats{gap:8px}#account-button{font-size:12px;padding:8px}.account-actions{flex-direction:column}}