:root{color:#172b4d;font-synthesis:none;--ink:#172b4d;--muted:#46566e;--blue:#2557d6;--primary:var(--blue);--primary-soft:#e8efff;--surface:#fff;--border:#dae4f2;--control-border:#62768f;--mint:#d9f4e8;--sun:#ffd166;--playground:#fffaf1;--sky-soft:#dcecff;--sun-bright:#ffcb45;--sun-soft:#ffeaa0;--coral-soft:#ffd0bd;--mint-play:#b3edce;--grape-soft:#e0cdff;--grape-ink:#6240a4;--sky-play:#96daff;--coral-play:#ffa589;--mint-bright:#64dcae;--grape-play:#bca3ff;background:#fffaf1;font-family:ui-rounded,Segoe UI,Microsoft YaHei,sans-serif}*{box-sizing:border-box}body{margin:0;font-size:16px;line-height:1.6}button,input,select,textarea{font:inherit}button{cursor:pointer;touch-action:manipulation;color:inherit}button:disabled{cursor:not-allowed;opacity:.65}button:focus-visible,input:focus-visible,select:focus-visible,a:focus-visible,textarea:focus-visible{outline:3px solid var(--blue);outline-offset:4px}.voice-settings{border-top:2px solid var(--border);margin-top:32px;padding-top:24px}.voice-settings>p,.talk-stage>p,.talk-guide>p{margin:12px 0}.voice-config-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;display:grid}.voice-config{border:1px solid var(--border);background:#f4f8ff;border-radius:20px;min-width:0;padding:18px}.voice-config h4{margin:0 0 16px}.voice-actions{flex-wrap:wrap;align-items:center;gap:12px;margin:14px 0;display:flex}.voice-recorder{border:1px dashed var(--blue);background:#f4f8ff;border-radius:18px;margin:16px 0;padding:16px}.voice-recorder audio,.ai-audio audio{max-width:100%;margin-top:10px;display:block}.voice-test{padding-top:16px}.ai-audio{margin-top:14px}.talk-scenes{grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin:20px 0 24px;display:grid}.talk-scene{text-align:left;border:2px solid var(--border);box-shadow:0 5px 0 var(--border);background:#fff;border-radius:22px;flex-direction:column;gap:8px;min-height:144px;padding:20px;transition:transform .18s,box-shadow .18s;display:flex}.talk-scene.selected{border-color:var(--blue);box-shadow:0 5px 0 var(--blue);background:#edf3ff}.talk-scene:active{box-shadow:0 2px 0 var(--border);transform:translateY(3px)}.talk-scene strong{font-size:20px}.talk-scene span{color:var(--blue);font-size:13px;font-weight:700}.talk-layout{grid-template-columns:minmax(0,1fr) 280px;align-items:start;gap:24px;display:grid}.talk-stage{min-width:0}.talk-stage h2{max-width:27ch;margin:10px 0;font-size:clamp(24px,3vw,34px)}.talk-guide{background:var(--mint)}.talk-guide ol{padding-left:22px}.talk-guide li{margin:12px 0}.talk-starters{flex-wrap:wrap;gap:10px;margin:22px 0;display:flex}.talk-starters p{flex-basis:100%}.talk-starters button,.voice-actions button{min-height:52px}.talk-stage textarea{font:inherit;border:2px solid var(--control-border);resize:vertical;width:100%;color:var(--ink);background:#fff;border-radius:16px;padding:14px}.talk-turn{gap:16px;margin:24px 0;animation:.25s ease-out talk-arrive;display:grid}.talk-bubble{background:#edf3ff;border-radius:20px 20px 20px 4px;width:min(100%,650px);padding:20px}.talk-bubble.learner{background:var(--mint);border-radius:20px 20px 4px;justify-self:end}.talk-bubble>p{margin:8px 0}.talk-bubble p[lang=en]{font-size:21px;line-height:1.65}.talk-bubble small{color:var(--muted)}.talk-hint{border-top:1px solid var(--border);padding-top:10px}@keyframes talk-arrive{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}@media (width<=1180px){.talk-layout,.voice-config-grid{grid-template-columns:1fr}}@media (width<=680px){.talk-scenes{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.talk-scene{padding:14px}.talk-bubble{padding:16px}}@media (prefers-reduced-motion:reduce){.talk-scene{transition:none}.talk-turn{animation:none}}[data-quiet=true] .talk-turn{animation:none}.workshop-entry{background:var(--mint);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:20px;margin:20px 0;display:flex}.listening-prompt{border:2px solid var(--control-border);background:#edf3ff;border-radius:24px;margin:20px 0;padding:22px}.listening-heading{align-items:center;gap:16px;display:flex}.listening-heading strong{font-size:23px}.listening-heading p{color:var(--muted);margin-top:6px}.listening-speaker{background:var(--sun);height:72px;color:var(--ink);border-radius:50%;flex:0 0 72px;place-items:center;display:grid}.listening-speaker svg{width:44px;height:44px}.listening-speaker[data-playing=true]{animation:1.2s ease-in-out infinite listening-breathe}.listening-transcript{background:#fff;border-radius:16px;margin:14px 0;padding:18px}.listening-transcript p{margin-top:8px;font-size:25px}.evidence-passage{border:1px solid var(--border);background:#fff9e9;border-radius:24px;margin:20px 0;padding:22px}.evidence-passage h3{margin:8px 0 18px}.evidence-line{text-align:left;border:2px solid var(--control-border);background:#fff;border-radius:18px;grid-template-columns:30px minmax(0,1fr);gap:10px 14px;width:100%;margin:8px 0;padding:16px;display:grid}.evidence-line>span[lang]{font-size:21px;line-height:1.8}.evidence-line>span:first-child{color:var(--blue);font-weight:800}.evidence-line small{color:var(--muted);grid-column:2;font-size:14px}.evidence-line[aria-pressed=true]{border-color:var(--blue);box-shadow:inset 4px 0 var(--blue);background:#e8efff}.evidence-instruction{margin:18px 0;font-weight:700}.order-preview{background:#f4f8ff;border-radius:16px;margin:14px 0;padding:16px;font-size:22px}@keyframes listening-breathe{50%{box-shadow:0 0 0 9px #ffd16644}}@media (width<=620px){.evidence-passage,.listening-prompt{padding:14px}.evidence-line{grid-template-columns:22px minmax(0,1fr);gap:8px;padding:12px}.listening-speaker{flex-basis:56px;height:56px}}@media (prefers-reduced-motion:reduce){.listening-speaker[data-playing=true]{animation:none}}.workshop-bank{flex-direction:column;gap:14px;display:flex}.workshop-bank>button{min-height:52px;margin-top:auto}.workshop-bank details{background:#f4f8ff;border-radius:14px;padding:12px}.sorting-count{color:var(--muted);margin:14px 0}.sorting-cards{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin:16px 0 24px;display:grid}.sorting-card{text-align:left;border:2px solid var(--control-border);min-height:94px;box-shadow:0 4px 0 var(--border);background:#fff;border-radius:18px;flex-direction:column;align-items:flex-start;gap:10px;padding:16px;transition:transform .15s,border-color .15s;display:flex}.sorting-card strong{font-size:20px}.sorting-card small{color:var(--muted);font-size:14px}.sorting-card[aria-pressed=true]{border:3px solid var(--blue);background:#edf3ff;transform:translateY(-3px)}.sorting-card[data-placed=true] small{color:var(--blue);font-weight:700}.sorting-baskets{grid-template-columns:repeat(2,minmax(0,1fr));align-items:start;gap:16px;display:grid}.sorting-basket{border:2px solid var(--control-border);background:#fff5da;border-radius:20px;min-width:0;padding:14px}.sorting-basket[data-tone="1"]{background:#e8efff}.sorting-basket[data-tone="2"]{background:var(--mint)}.sorting-basket>button{align-items:center;gap:12px;width:100%;min-height:64px;font-weight:700;display:flex}.sorting-basket>button:disabled{opacity:1}.sorting-basket svg{flex:0 0 36px;width:36px}.sorting-basket ul{flex-wrap:wrap;gap:8px;margin:12px 0 0;padding:0;list-style:none;display:flex}.sorting-basket li{min-width:0;max-width:100%;animation:.22s ease-out basket-drop}.basket-chip{border:1px solid var(--control-border);text-align:left;overflow-wrap:anywhere;background:#fff;border-radius:12px;min-height:52px;padding:10px 14px}.repair-parts{flex-wrap:wrap;gap:12px;margin:24px 0;display:flex}.repair-part{border:2px solid var(--control-border);min-height:56px;box-shadow:0 4px 0 var(--border);background:#fff;border-radius:14px;padding:10px 15px;font-size:23px;line-height:1.5}.repair-part[aria-pressed=true]{border-color:var(--blue);box-shadow:0 4px 0 var(--blue);background:#edf3ff}.repair-preview{background:#f4f8ff;border-radius:18px;margin:20px 0;padding:18px}.repair-preview p,.corrected-sentence{margin-top:10px;font-size:23px;line-height:1.6}.structured-feedback{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;padding:0;list-style:none;display:grid}.structured-feedback li{border:1px solid var(--control-border);background:#fff5da;border-radius:16px;flex-direction:column;gap:8px;min-width:0;padding:14px;display:flex}.structured-feedback li[data-correct=true]{background:var(--mint)}.structured-feedback li small{font-size:15px}@keyframes basket-drop{0%{opacity:.5;transform:translateY(-8px)}to{opacity:1;transform:translateY(0)}}@media (width<=620px){.sorting-cards,.sorting-baskets,.structured-feedback{grid-template-columns:1fr}.repair-part{font-size:21px}}@media (prefers-reduced-motion:reduce){.sorting-card{transition:none}.sorting-basket li{animation:none}}h1,h2,h3,p{margin:0}h1{letter-spacing:-.7px;font-size:clamp(28px,2.7vw,38px);line-height:1.35}h2{font-size:22px;line-height:1.45}h3{font-size:18px}p{overflow-wrap:break-word}.icon{fill:none;stroke:currentColor;stroke-width:1.8px;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0;width:23px;height:23px}.skip{z-index:100;background:#fff;padding:16px;position:fixed;top:-80px;left:16px}.skip:focus{top:12px}.app-shell{grid-template-columns:220px minmax(0,1fr);min-height:100dvh;display:grid}.sidebar{border-right:1px solid var(--border);background:#fff;flex-direction:column;gap:28px;height:100dvh;padding:32px 20px;display:flex;position:sticky;top:0;overflow-y:auto}.brand{white-space:nowrap;align-items:center;gap:10px;font-size:20px;font-weight:800;display:flex}.brand small{color:var(--muted);letter-spacing:2px;font-size:10px;display:block}.brand-mark{background:var(--blue);color:#fff;border-radius:16px;place-items:center;width:46px;height:46px;display:grid;box-shadow:0 4px #173c9c}.brand-mark .icon{width:30px;height:30px}.sidebar nav{flex-direction:column;gap:10px;display:flex}.nav-entry{min-width:0}.nav-entry>button{width:100%}.nav-group-label{color:var(--muted);letter-spacing:1px;margin:8px 10px;font-size:12px;font-weight:700;display:block}.sidebar nav button{text-align:left;min-height:54px;color:var(--muted);background:0 0;border:0;border-radius:16px;align-items:center;gap:12px;padding:12px 10px;font-weight:650;display:flex}.sidebar nav button:hover{background:var(--playground)}.sidebar nav button[aria-current=page]{background:var(--nav-pop,var(--nav-soft,var(--sky-soft)));color:var(--ink);box-shadow:inset 4px 0 var(--nav-ink,var(--blue))}.sidebar nav button[data-nav=map]{--nav-pop:var(--sky-play);--nav-soft:var(--sky-soft);--nav-ink:var(--blue)}.sidebar nav button[data-nav=words]{--nav-pop:var(--sun-bright);--nav-soft:var(--sun-soft);--nav-ink:#805000}.sidebar nav button[data-nav=topics]{--nav-pop:var(--coral-play);--nav-soft:var(--coral-soft);--nav-ink:#9d4027}.sidebar nav button[data-nav=patterns]{--nav-pop:var(--grape-play);--nav-soft:var(--grape-soft);--nav-ink:var(--grape-ink)}.sidebar nav button[data-nav=review]{--nav-pop:var(--mint-bright);--nav-soft:var(--mint-play);--nav-ink:#146a4b}.nav-symbol{width:42px;height:42px;color:var(--nav-ink,var(--muted));background:var(--nav-soft,#edf1f6);border-radius:14px;flex-shrink:0;place-items:center;display:grid}.nav-copy{font-size:16px}.nav-copy small{color:var(--muted);margin-top:2px;font-size:12px;font-weight:500;display:block}.sidebar nav button[aria-current=page] .nav-copy small{color:var(--ink)}.sidebar nav button[aria-current=page] .nav-symbol{background:#fff}.sidebar-note{background:var(--sun-soft);border-radius:20px;margin-top:auto;padding:18px;font-size:14px}.sidebar-note p{color:var(--muted);margin-top:6px}.build-label{color:var(--muted);padding-left:14px;font-size:12px}@media (width>=1024px) and (height<=900px){.sidebar-note,.build-label{display:none}.sidebar{gap:20px;padding-top:24px;padding-bottom:24px}.sidebar nav{gap:6px}.nav-group-label{margin-top:4px;margin-bottom:4px}}.workspace{min-width:0;padding:0 36px 40px}.topbar{border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;gap:20px;min-height:96px;margin-bottom:32px;display:flex}.topbar small{color:var(--muted);font-size:12px;display:block}.topbar strong{font-size:15px}.toolbar{align-items:center;gap:12px;display:flex;position:relative}.display-settings{position:static}.display-settings>summary{cursor:pointer;border:1px solid var(--control-border);background:#fff;border-radius:14px;min-height:52px;padding:12px 14px;font-size:14px}.display-settings>summary:focus-visible{outline:3px solid var(--blue);outline-offset:4px}.display-settings-panel{z-index:40;border:2px solid var(--blue);background:#fff;border-radius:20px;gap:12px;width:240px;max-width:calc(100vw - 32px);padding:16px;display:grid;position:absolute;top:calc(100% + 8px);right:0;box-shadow:0 8px 24px #172b4d22}.soft-button,.profile-button{border:1px solid var(--border);background:#fff;border-radius:14px;min-height:48px;padding:10px 14px;font-size:14px}.profile-button{background:var(--mint);color:#146a4b;font-weight:700}.stars{border:1px solid var(--border);color:#795111;background:#fff;border-radius:14px;align-items:center;gap:8px;min-height:48px;padding:10px 13px;display:flex}main{outline:none}.page-head{justify-content:space-between;align-items:center;gap:24px;margin-bottom:24px;display:flex}.eyebrow{color:var(--blue);letter-spacing:1.5px;margin-bottom:12px;font-size:12px;font-weight:800}.lead{color:var(--muted);margin:12px 0 24px;font-size:17px}.page-head .lead{margin-bottom:0}.filters,.filter-row{flex-wrap:wrap;align-items:end;gap:14px;display:flex}.filters label,.filter-row label,.field{gap:7px;font-size:14px;font-weight:650;display:grid}.filter-row{margin:24px 0}.filter-row .badge{margin-bottom:8px}.filters select,select,input{color:var(--ink);background:#fff;border:1.5px solid #62768f;border-radius:13px;max-width:100%;min-height:48px;padding:10px 14px;font-size:16px}.dashboard{grid-template-columns:minmax(0,1fr) 285px;gap:24px;display:grid}.map-card,.card{border:1px solid var(--border);background:#fff;border-radius:26px;box-shadow:0 8px 30px #28476e09}.map-card{overflow:hidden}.map-caption{justify-content:space-between;align-items:center;gap:12px;padding:24px 24px 0;display:flex}.map-caption p{color:var(--muted);margin-top:7px;font-size:14px}.badge{color:var(--blue);letter-spacing:0;vertical-align:middle;background:#e8efff;border-radius:10px;padding:5px 10px;font-size:12px;font-weight:650;display:inline-block}.world-scene{background:linear-gradient(#fff,#edf7fd);height:320px;margin-top:4px;position:relative}.world-caption{color:var(--muted);background:#fffc;border-radius:8px;padding:3px 8px;font-size:12px;position:absolute;bottom:8px;left:20px}.world-fallback{text-align:center;height:100%;color:var(--muted);place-items:center;padding:28px;display:grid}.unit-path{grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;padding:24px;display:grid}.unit-node{grid-template-columns:34px minmax(0,1fr);align-items:center;gap:2px 10px;display:grid}.unit-node>span{width:34px;height:34px;color:var(--blue);background:#e9f1fd;border-radius:12px;grid-row:span 2;place-items:center;font-weight:800;display:grid}.unit-node strong{overflow-wrap:anywhere;font-size:13px}.unit-node small{color:var(--muted);font-size:11px}.map-footer{border-top:1px solid var(--border);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px;padding:20px 24px;display:flex}.map-footer p{color:var(--muted);font-size:13px}.map-footer>div{justify-items:start;min-width:0;display:grid}.map-footer>button{flex-shrink:0}.primary,.secondary{border-radius:15px;justify-content:center;align-items:center;gap:10px;min-height:52px;padding:12px 19px;font-weight:700;transition:transform .12s,background .18s;display:inline-flex}.primary{background:var(--blue);color:#fff;border:0;box-shadow:0 4px #193f9e}.primary:hover:enabled{background:#204cbd}.primary:active:enabled{transform:translateY(3px);box-shadow:0 1px #193f9e}.secondary{background:#fff;border:1.5px solid #62768f}.text-button{min-height:48px;color:var(--blue);background:0 0;border:0;padding:8px 12px;font-size:14px;font-weight:650}.right-rail{align-content:start;gap:20px;display:grid}.card{padding:24px}.card p{color:var(--muted);margin-top:10px}.sunny{background:#fff7df;border-color:#f0dfad}.sunny .eyebrow{color:#705522;letter-spacing:1px;font-size:11px}.task-list{gap:14px;margin:24px 0;padding:0;font-size:15px;list-style:none;display:grid}.task-list li{align-items:center;gap:12px;display:flex}.task-list span{background:#fff;border-radius:11px;place-items:center;width:30px;height:30px;font-weight:700;display:grid}.right-rail .primary,.right-rail .secondary{width:100%;margin-top:18px}.right-rail>.card>.icon{color:#146a4b;margin-bottom:10px}.feature-strip{grid-template-columns:repeat(3,1fr);gap:18px;margin-top:24px;display:grid}.feature-strip>div{border:1px solid var(--border);background:#fff;border-radius:20px;grid-template-columns:36px 1fr;align-items:center;gap:3px 12px;padding:18px;display:grid}.feature-strip .icon{color:var(--blue);grid-row:span 2}.feature-strip strong{font-size:15px}.feature-strip small{color:var(--muted);font-size:12px}.topic-grid,.pattern-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;display:grid}.topic-card,.pattern-card{flex-direction:column;align-items:start;gap:12px;min-width:0;display:flex}.topic-card h2{font-size:20px}.topic-card p,.pattern-card p{margin:0;font-size:15px}.topic-card .primary,.topic-card .secondary{width:100%;margin-top:auto}.pattern-card h2{overflow-wrap:anywhere;font-size:21px}.pattern-card .example{width:100%;color:var(--ink);background:#f4f8ff;border-radius:13px;padding:14px;font-size:18px}.pattern-card .secondary{margin-top:auto}.notice{color:#57411a;background:#fff4d4;border:1px solid #d8b04a;border-radius:16px;margin:16px 0;padding:16px 18px}.notice.error{color:#9b2636;background:#fff0ec;border-color:#dca6a2;justify-content:space-between;align-items:center;gap:14px;display:flex}.notice.error .text-button{color:inherit}.stats{grid-template-columns:repeat(3,1fr);gap:18px;margin:24px 0;display:grid}.stats .card{gap:6px;display:grid}.stats strong{font-size:32px}.stats span{color:var(--muted);font-size:14px}.empty-state{text-align:center;color:var(--muted);padding:48px 24px}.empty-state .icon{margin:0 auto 20px}.empty-state .primary{margin-top:24px}.review-row{border-bottom:1px solid var(--border);align-items:center;gap:18px;padding:18px 0;display:flex}.review-row>.icon{color:#146a4b}.review-row>div{flex:1}.review-row p{margin:2px 0 0;font-size:13px}.review-row>span{color:var(--blue);font-size:14px}.footnote{color:var(--muted);font-size:13px;line-height:1.7;margin-top:20px!important}.parent-grid{grid-template-columns:1fr 1fr;gap:24px;display:grid}.field{margin:24px 0}.parent-grid .field select{width:100%}.plain-list{color:var(--muted);gap:10px;padding-left:21px;display:grid}.exercise-wrap{max-width:890px;margin:auto}.exercise-top{justify-content:space-between;align-items:center;gap:16px;margin-bottom:24px;display:flex}.exercise-card{text-align:center;padding:38px}.exercise-card .lead{margin-bottom:18px}.question{margin:20px 0;font-size:clamp(24px,3vw,34px)}.answer-options{flex-wrap:wrap;justify-content:center;gap:16px;margin:28px 0;display:flex}.answer-option,.token{background:#fff;border:2px solid #8399b5;border-radius:16px;min-width:90px;min-height:60px;padding:12px 20px;font-size:25px;box-shadow:0 4px #dbe5f1}.answer-option[aria-pressed=true],.token.picked{border-color:var(--blue);background:#e8efff;box-shadow:0 4px #b8c9f5}.word-answer{text-align:left;max-width:400px;margin:28px auto}.word-answer input{padding:14px;font-size:26px}.exercise-actions{border-top:1px solid var(--border);justify-content:space-between;gap:20px;padding-top:24px;display:flex}.feedback{text-align:left;background:#fff3df;border-radius:20px;margin:24px 0;padding:22px}.feedback.success{background:var(--mint);color:#146a4b}.feedback p{color:inherit}.feedback small{margin-top:12px;font-size:13px;display:block}.sentence-slot{background:#f7faff;border:2px dashed #8399b5;border-radius:20px;flex-wrap:wrap;justify-content:center;align-items:center;gap:12px;min-height:100px;padding:20px;display:flex}.sentence-slot>span{color:var(--muted)}@media (width<=1280px){.app-shell{grid-template-columns:192px minmax(0,1fr)}.sidebar{padding:28px 14px}.brand{font-size:17px}.workspace{padding-left:24px;padding-right:24px}.dashboard{grid-template-columns:minmax(0,1fr)}.right-rail{grid-template-columns:1fr 1fr}.topic-grid,.pattern-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.page-head{align-items:start}.filters{min-width:150px}.feature-strip>div{grid-template-columns:1fr}.feature-strip .icon{display:none}}@media (width<=1023px){.app-shell{display:block}.sidebar{width:100%;height:auto;padding:8px 12px calc(8px + env(safe-area-inset-bottom));z-index:30;border-top:1px solid var(--border);position:fixed;top:auto;bottom:0}.sidebar>.brand,.sidebar-note,.build-label{display:none}.sidebar nav{grid-template-columns:repeat(5,minmax(0,1fr));gap:6px;display:grid}.sidebar nav button{text-align:center;flex-direction:column;justify-content:center;gap:4px;min-height:64px;padding:7px 2px;font-size:12px}.nav-group-label{display:none}.workspace{padding-bottom:calc(120px + env(safe-area-inset-bottom))}.topbar{min-height:88px}.toolbar{gap:8px}.soft-button{font-size:12px}.world-scene{height:300px}.parent-grid{grid-template-columns:1fr}.pattern-card h2{font-size:20px}}@media (width<=620px){.workspace{padding-left:16px;padding-right:16px}.toolbar .stars{display:none}.topbar small{font-size:10px}.soft-button,.profile-button{padding:8px 10px;font-size:12px}.page-head{flex-direction:column;gap:18px}.filters{width:100%}.filters label:first-child{flex:1}.filters select{width:100%}.right-rail,.topic-grid,.pattern-grid,.feature-strip{grid-template-columns:1fr}.map-caption{padding:20px 18px 0}.map-caption h2{font-size:21px}.map-caption p{font-size:13px}.world-scene{height:270px}.unit-path{grid-template-columns:repeat(2,minmax(0,1fr));padding:20px 18px}.map-footer{flex-direction:column;align-items:stretch;padding:20px 18px}.card{padding:22px}.feature-strip>div{grid-template-columns:36px 1fr}.feature-strip .icon{display:block}.filter-row{flex-direction:column;align-items:stretch}.stats{gap:10px}.stats .card{padding:16px 12px}.stats strong{font-size:28px}.stats span{font-size:11px}.review-row{gap:10px}.review-row>span{font-size:12px}.exercise-card{padding:26px 18px}.exercise-actions{flex-wrap:wrap;gap:12px}.exercise-actions>*{flex:1}.answer-option,.token{min-width:75px;padding:12px 16px;font-size:22px}.world-caption{font-size:10px}.notice.error{align-items:start}}.family-layout{grid-template-columns:minmax(0,1.5fr) minmax(280px,1fr);align-items:start;gap:24px;margin-top:32px;display:grid}.family-layout .card{min-width:0}.login-card{width:100%;max-width:620px}.login-card>h2{margin:12px 0;font-size:30px}.login-emblem{background:var(--sun);border-radius:32px;place-items:center;width:100px;height:100px;margin-bottom:28px;display:grid;position:relative;transform:rotate(-7deg);box-shadow:0 8px #e9b64c,0 18px 32px #c7d8e880}.login-emblem span{font-size:40px;font-weight:850;transform:rotate(7deg)}.login-emblem i{background:var(--mint);border:5px solid #fff;border-radius:12px;width:30px;height:30px;position:absolute;top:-6px;right:-15px}.login-emblem i:last-child{background:#f2b2a0;width:22px;height:22px;top:70px;left:-18px}.profile-form{gap:20px;margin:24px 0;display:grid}.profile-form .field{gap:8px}.profile-form input,.profile-form select{width:100%;min-height:52px}.password-field{align-items:center;display:flex;position:relative}.password-field input{min-width:0;padding-right:72px}.password-field button{min-width:52px;min-height:44px;position:absolute;right:8px}.family-heading{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:18px;margin-bottom:24px;display:flex}.family-heading h2{margin-top:12px}.children-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;display:grid}.child-profile{text-align:center;border:2px solid var(--border);background:#f8faff;border-radius:24px;justify-items:center;gap:10px;padding:24px 16px;transition:border-color .18s,transform .18s;display:grid}.child-profile[data-selected=true]{border-color:var(--blue);background:#edf3ff}.child-profile p{color:var(--muted);font-size:14px}.child-avatar{background:var(--sun);width:70px;height:70px;color:var(--ink);border-radius:26px 26px 24px 12px;place-items:center;font-size:30px;font-weight:750;display:grid;box-shadow:inset 0 -5px #0000000c}.avatar-1{background:var(--mint)}.avatar-2{background:#f8c7bb}.avatar-3{background:#d7c9f2}.child-form{border-top:1px solid var(--border);margin-bottom:0;padding-top:24px}.profile-fields{flex-wrap:wrap;align-items:end;gap:14px;display:flex}.profile-fields>.field{flex:1;min-width:120px}.parent-guide{background:linear-gradient(145deg,#edf7ef,#fff9e8)}.parent-guide h2{margin:16px 0 24px;font-size:clamp(24px,2vw,30px)}.parent-guide ol{gap:24px;padding-left:24px;display:grid}.parent-guide li::marker{color:var(--blue);font-weight:800}.parent-guide p{color:var(--muted);margin-top:6px}.dev-tools{border:1px dashed var(--border);border-radius:16px;margin-top:28px;padding:18px}.dev-tools summary{cursor:pointer;padding:8px}.resume-banner{background:#fff1c7;border:1px solid #ead28b;border-radius:24px;justify-content:space-between;align-items:center;gap:20px;margin-bottom:24px;padding:24px 28px;display:flex}.resume-banner h2{margin:3px 0}.resume-banner p{color:var(--muted)}@media (width<=1100px){.family-layout{grid-template-columns:minmax(0,1fr)}.login-card{max-width:none}}@media (width<=540px){.children-grid{grid-template-columns:minmax(0,1fr)}.resume-banner{flex-direction:column;align-items:stretch;padding:22px}}.course-section{margin:32px 0}.course-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;display:grid}.course-card{border-top:5px solid #c8daff;align-content:start;gap:14px;display:grid;position:relative;overflow:hidden}.course-card:nth-child(2n){border-top-color:#a7dcbf}.course-card:nth-child(3n){border-top-color:var(--sun)}.course-card .lesson-index{color:#e9eff8;pointer-events:none;font-size:64px;font-weight:850;line-height:1.2;position:absolute;top:4px;right:18px}.course-card .badge{justify-self:start;position:relative}.course-card h3{font-size:23px;position:relative}.course-card>p{color:var(--muted)}.course-card>small{font-size:14px}.course-card .primary{justify-self:start}button.unit-node{color:inherit;font:inherit;text-align:center;background:0 0;border:0;min-width:0}button.unit-node:not(:disabled){background:#e8f1ff;border-radius:18px}.lesson-view{gap:24px;display:grid}.lesson-hero{justify-content:space-between;align-items:center;gap:28px;padding:24px 0 12px;display:flex}.lesson-hero h1{text-wrap:balance;max-inline-size:18ch;margin:14px 0}.learning-steps{border:1px solid var(--border);background:#fff;border-radius:20px;flex-wrap:wrap;gap:20px;margin:0;padding:16px 20px;list-style:none;display:flex}.learning-steps li{color:var(--muted);align-items:center;gap:8px;display:flex}.learning-steps span{background:#edf2f9;border-radius:12px;place-items:center;width:32px;height:32px;font-weight:800;display:grid}.learning-steps [aria-current]{color:var(--ink);font-weight:700}.learning-steps [aria-current] span{background:var(--sun)}.rule-card{background:#e9f6ed;border-color:#bdddc8}.rule-card h2{margin:12px 0}.rule-card>p{font-size:20px;line-height:1.8}.teaching-grid{grid-template-columns:repeat(auto-fit,minmax(min(100%,260px),1fr));gap:20px;display:grid}.teaching-card{flex-direction:column;align-items:start;gap:16px;display:flex}.example-number{color:var(--muted);font-size:14px;font-weight:750}.teaching-english{font-size:28px;font-weight:700;line-height:1.5}.speech-control{flex-direction:column;align-items:start;gap:8px;max-width:100%;display:inline-flex}.speech-button{color:#18439c;background:#e8efff;border:1px solid #8ba7df;border-radius:16px;justify-content:center;align-items:center;gap:9px;min-height:48px;padding:10px 16px;font-weight:650;display:inline-flex}.speech-button[aria-pressed=true]{background:var(--blue);color:#fff}.speech-button svg{stroke:currentColor;stroke-width:1.6px;fill:none;width:22px;height:22px}.speech-error{color:#914123;font-size:14px}.word-shelf>p{color:var(--muted);margin:10px 0 20px}.lesson-concepts{border:2px solid var(--grape-ink);background:#fff;border-radius:24px;margin:24px 0}.lesson-concepts>summary{cursor:pointer;background:var(--grape-soft);border-radius:22px;min-height:64px;padding:18px 24px}.lesson-concepts>summary strong{margin:0 12px 0 4px}.lesson-concepts>summary span{font-size:14px;display:inline-block}.lesson-concepts>summary:focus-visible{outline:3px solid var(--blue);outline-offset:4px}.lesson-concept-content{min-width:0;padding:20px}.word-chips{grid-template-columns:repeat(auto-fit,minmax(min(100%,200px),1fr));gap:14px;display:grid}.word-chips>div{background:#f4f7fc;border-radius:20px;flex-direction:column;align-items:start;gap:8px;padding:18px;display:flex}.word-chips strong{font-size:26px}.lesson-mission{background:#fff3cf;border:1px solid #ecd18a;border-radius:24px;justify-content:space-between;align-items:center;gap:24px;padding:28px;display:flex}.lesson-mission>div{max-width:60%}.lesson-mission h2{margin:8px 0}.lesson-mission .primary{flex-shrink:0}.lesson-progress{accent-color:#2557d6;background:#e0e8f5;border:0;border-radius:8px;width:100%;height:12px;margin:20px 0;display:block;overflow:hidden}.lesson-progress::-webkit-progress-bar{background:#e0e8f5}.lesson-progress::-webkit-progress-value{background:#2557d6;border-radius:8px}.family-report{border-top:7px solid var(--mint-play);margin-top:28px}.offline-link{min-height:52px;color:var(--blue);text-underline-offset:4px;align-items:center;padding:10px 12px;font-size:14px;font-weight:700;display:inline-flex}.offline-path{grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin:24px 0;padding:0;list-style:none;display:grid}.offline-path li{background:var(--sun-soft);border-radius:18px;padding:16px;font-weight:700}.offline-path li:nth-child(2){background:var(--grape-soft)}.offline-path li:nth-child(3){background:var(--mint-play)}.offline-practice>.card,.offline-practice>section,.offline-practice>article{margin-top:24px}.offline-prepare{max-width:860px}.offline-prepare a.primary{align-items:center;min-height:52px;text-decoration:none;display:inline-flex}.offline-summary{background:var(--mint);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:20px;display:flex}.offline-summary h2{font-size:clamp(22px,3vw,30px)}.offline-summary p{margin:8px 0}.offline-question{border:2px solid var(--blue);max-width:950px}.offline-question h3{overflow-wrap:anywhere;font-size:clamp(24px,3vw,32px)}.offline-question>.primary{margin-top:24px}.offline-question input{border:2px solid var(--control-border);border-radius:16px;width:100%;min-height:56px;padding:12px;font-size:24px}.offline-order>p{background:var(--sky-soft);overflow-wrap:anywhere;border-radius:16px;min-height:76px;padding:16px;font-size:24px}.offline-order .token-bank{margin-top:16px}.offline-records summary{cursor:pointer;min-height:52px;padding:12px 0;font-weight:700}.offline-records summary:focus-visible{outline:3px solid var(--blue);outline-offset:4px}.offline-records li{border-bottom:1px solid var(--border);overflow-wrap:anywhere;padding:16px 0}.offline-tools{flex-wrap:wrap;gap:12px;margin-top:20px;display:flex}.offline-practice button,.offline-practice .text-button{min-height:52px}@media (width<=700px){.offline-path{grid-template-columns:1fr;gap:8px}.offline-path li{padding:12px 16px}}.family-report .text-button{min-height:52px}.report-heading{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:20px;display:flex}.report-heading h2{margin:4px 0}.report-heading .eyebrow{margin:0}.report-period{gap:10px;display:flex}.report-period button{min-height:52px}.report-period button[aria-pressed=true]{color:#fff;background:var(--blue);border-color:var(--blue);box-shadow:0 3px #173c9c}.report-range,.report-updated{color:var(--muted);font-size:14px}.report-stat-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin:24px 0;display:grid}.report-stat{overflow-wrap:anywhere;background:var(--sky-soft);border-radius:20px;gap:8px;min-width:0;padding:18px;display:grid}.report-stat:nth-child(2){background:var(--mint-play)}.report-stat:nth-child(3){background:var(--sun-soft)}.report-stat:nth-child(4){background:var(--grape-soft)}.report-stat span{font-size:14px}.report-stat strong{font-variant-numeric:tabular-nums;font-size:clamp(26px,3vw,36px)}.report-activity,.report-practice{margin-top:28px}.report-legend{flex-wrap:wrap;gap:10px 20px;font-size:14px;display:flex}.report-legend span{align-items:center;gap:8px;display:inline-flex}.report-legend i{border-radius:4px;width:14px;height:14px}.report-bucket-independent{background:#146a4b}.report-bucket-assisted{background:#9a6700}.report-bucket-incorrect{background:#b2472e}.report-bucket-unscored{background:#62768f}.report-plot{border-bottom:2px solid var(--control-border);background:#fff;align-items:stretch;gap:clamp(3px,1vw,12px);height:180px;margin-top:20px;display:flex}.report-column{flex-direction:column-reverse;flex:1;min-width:0;display:flex}.report-column>span{flex-shrink:0;display:block}.report-axis{color:var(--muted);justify-content:space-between;gap:12px;margin:8px 0;font-size:14px;display:flex}.report-details{margin-top:20px}.report-details>summary,.learning-report>summary{cursor:pointer;min-height:52px;padding:12px 0;font-weight:700}.report-details>summary:focus-visible,.learning-report>summary:focus-visible,.report-table-scroll:focus-visible{outline:3px solid var(--blue);outline-offset:4px;border-radius:8px}.report-table-scroll{max-width:100%;margin:16px 0;overflow-x:auto}.report-table{border-collapse:collapse;text-align:right;font-variant-numeric:tabular-nums;width:100%;min-width:560px;font-size:14px}.report-table caption{text-align:left;margin-bottom:8px;font-weight:750}.report-table th,.report-table td{border-bottom:1px solid var(--border);white-space:nowrap;padding:14px 12px}.report-table thead{background:var(--sky-soft)}.report-table th:first-child{text-align:left}.report-next{background:var(--mint);border-radius:22px;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:20px;margin-top:28px;padding:20px;display:flex}.report-next>div{flex:320px;min-width:0}.report-next h3,.report-next p{margin:6px 0}.report-next button{min-height:52px}.report-practice ul{padding:0;list-style:none}.report-practice li{border-bottom:1px solid var(--border);padding:16px 0}.report-practice li>div{flex-wrap:wrap;align-items:baseline;gap:8px 16px;display:flex}.report-practice li span{color:var(--muted);font-size:14px}.report-practice li p{margin:6px 0 0;font-size:14px}@media (width<=700px){.report-stat-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.report-stat{padding:14px}.report-plot{gap:3px;height:150px}}.learning-report{margin-top:24px}.topic-bank-count{color:var(--muted);gap:4px;margin:16px 0;font-size:14px;display:grid}.topic-bank-count strong{color:var(--primary);font-size:20px}.reading-passage{background:var(--bg);border:1px solid var(--border);white-space:pre-wrap;overflow-wrap:anywhere;border-radius:20px;margin-top:20px;padding:24px;font-size:clamp(18px,2vw,24px);line-height:1.75}.learning-records{margin:20px 0;padding:0;list-style:none}.learning-records li{border-bottom:1px solid var(--border);flex-wrap:wrap;justify-content:space-between;gap:12px;padding:16px 0;display:flex}.learning-records p,.learning-records time{color:var(--muted)}.review-start{justify-content:space-between;align-items:center;gap:24px;margin:24px 0;display:flex}.review-start p{color:var(--muted);margin-top:10px}.review-start .primary{flex-shrink:0}.completion-card{background:var(--mint);border:1px solid #a2cfb8;border-radius:26px;align-items:center;gap:22px;margin-bottom:30px;padding:28px;display:flex}.completion-card p{margin-top:8px}.completion-sun{background:var(--sun);color:var(--ink);border-radius:22px;place-items:center;min-width:64px;height:64px;font-size:38px;font-weight:800;animation:.7s ease-out both little-arrival;display:grid}@keyframes little-arrival{0%{transform:translateY(10px)scale(.85)}55%{transform:translateY(-5px)scale(1.05)}to{transform:none}}@media (width>=1600px){.course-grid{grid-template-columns:repeat(4,minmax(0,1fr))}}@media (width<=700px){.lesson-mission,.review-start,.completion-card{flex-direction:column;align-items:stretch}.lesson-mission>div{max-width:none}.course-grid{grid-template-columns:minmax(0,1fr)}.learning-steps{gap:12px;font-size:14px}.completion-sun{width:64px}}.app-shell[data-quiet=true] .completion-sun{animation:none}.word-hero{justify-content:space-between;align-items:center;gap:32px;padding:24px 0 32px;display:flex}.word-totals{flex-wrap:wrap;gap:10px;margin-top:18px;display:flex}.word-totals span{color:var(--ink);font-size:14px;font-weight:700}.word-totals span+span:before{content:"·";margin-right:10px}.word-hero .eyebrow{color:var(--ink)}.word-hero h1{text-wrap:balance;max-width:18ch}.word-hero>div:first-child{flex:1;min-width:0}.word-loop{flex-wrap:wrap;gap:10px 18px;margin:24px 0 0;padding:0;font-size:14px;font-weight:650;list-style:none;display:flex}.word-loop li{align-items:center;gap:6px;display:flex}.word-loop li>span{background:#fff;border-radius:50%;place-items:center;width:25px;height:25px;display:grid}.word-browse{border:2px solid var(--blue);overflow-wrap:anywhere;background:#fff;border-radius:24px;margin-bottom:24px}.word-browse>summary{cursor:pointer;background:var(--sky-soft);border-radius:22px;align-items:center;gap:16px;min-height:88px;padding:20px 24px;list-style:none;display:flex}.word-browse>summary::-webkit-details-marker{display:none}.word-browse>summary:focus-visible{outline:3px solid var(--blue);outline-offset:4px}.word-browse>summary strong,.word-browse>summary small{display:block}.word-browse>summary strong{font-size:20px}.word-browse>summary small{color:var(--muted);font-size:14px}.word-browse-icon{background:var(--sky-play);border-radius:16px;flex-shrink:0;place-items:center;width:48px;height:48px;display:grid}.word-browse-icon svg{fill:none;stroke:currentColor;stroke-width:1.8px;stroke-linecap:round;stroke-linejoin:round;width:28px}.word-browse-toggle{color:var(--blue);flex-shrink:0;margin-left:auto;font-weight:750}.word-browse[open]>summary{border-bottom:1px solid var(--blue);border-radius:22px 22px 0 0}.word-quick-start{text-align:left;max-width:100%}.word-launch{justify-items:start;gap:12px;margin-top:24px;display:grid}.word-launch>p{flex-wrap:wrap;align-items:center;gap:10px;margin:0;display:flex}.word-launch>p>span{border:1px solid;border-radius:10px;padding:3px 10px;font-size:13px}.word-launch>p>strong{font-size:20px}.word-launch>small{color:var(--ink);font-size:14px}.word-launch .primary{min-height:60px;font-size:20px;box-shadow:0 5px #173c9c}.word-path{grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;margin:0 0 28px;padding:0;list-style:none;display:grid}.word-path li{color:var(--muted);border:1px solid var(--border);background:#fff;border-radius:18px;align-items:center;gap:10px;padding:12px 16px;display:flex}.word-path li>span{background:#e8edf4;border-radius:50%;flex-shrink:0;place-items:center;width:32px;height:32px;font-weight:800;display:grid}.word-path li[aria-current=step]{color:var(--ink);background:var(--sun-soft);border:2px solid #9a6700}.word-path li[aria-current=step]>span{background:var(--sun-bright)}.word-path li[data-done=true]>span{background:var(--mint-play);color:#146a4b}.word-section-heading{flex-wrap:wrap;justify-content:space-between;align-items:end;gap:12px;display:flex}.word-section-heading h2{margin:4px 0;font-size:24px}.word-section-heading p{color:var(--muted);margin:0}.word-section-heading .eyebrow{color:var(--blue);margin:0}.word-chooser{padding:24px}.word-training input,.word-training select{min-height:52px}.word-progress-strip{background:#edfaf2;border:1px solid #8fbea4;border-radius:20px;flex-wrap:wrap;align-items:center;gap:14px 28px;min-height:76px;margin-bottom:28px;padding:14px 22px;display:flex}.word-progress-strip strong{font-size:24px}.word-theme-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin:24px 0;display:grid}.word-theme{text-align:left;border:2px solid var(--word-edge);background:var(--word-pop);box-shadow:0 5px 0 var(--word-edge);overflow-wrap:anywhere;border-radius:24px;align-items:flex-start;gap:14px;min-width:0;padding:22px;transition:transform .12s,border-color .16s;display:flex;position:relative}.word-tone-0{--word-soft:var(--sun-soft);--word-pop:var(--sun-bright);--word-edge:#9a6700}.word-tone-1{--word-soft:var(--coral-soft);--word-pop:var(--coral-play);--word-edge:#a5472b}.word-tone-2{--word-soft:var(--mint-play);--word-pop:var(--mint-bright);--word-edge:#247957}.word-tone-3{--word-soft:var(--grape-soft);--word-pop:var(--grape-play);--word-edge:var(--grape-ink)}.word-theme:hover{transform:translateY(-2px)}.word-theme:active:not(:disabled){box-shadow:0 2px 0 var(--word-edge);transform:translateY(3px)}.word-theme .eyebrow{color:var(--ink);letter-spacing:0}.word-theme>span:nth-child(2){gap:7px;min-width:0;display:grid}.word-theme strong{font-size:22px}.word-theme>span:nth-child(2)>span:last-child{color:var(--ink);font-size:14px}.word-theme>span:nth-child(2)>span{color:var(--ink)}.word-theme .word-theme-action{margin-top:6px;font-weight:750}.word-theme-number{width:42px;height:48px;color:var(--ink);background:#fffc;border-radius:14px;flex-shrink:0;place-items:center;font-size:20px;font-weight:800;display:grid}.word-theme-number svg{fill:none;stroke:currentColor;stroke-width:1.7px;stroke-linecap:round;stroke-linejoin:round;width:30px;height:30px}.word-theme-arrow{white-space:nowrap;color:var(--word-edge);margin-left:auto;font-size:24px;line-height:1.3}.word-workshop{border:2px solid var(--word-edge);max-width:1000px;box-shadow:0 7px 0 var(--word-soft);margin:0 auto;padding:28px}.word-workshop-heading{background:var(--word-pop);border-radius:20px;padding:24px}.word-workshop-heading h1{margin:4px 0 8px;font-size:clamp(28px,3vw,38px)}.word-workshop-heading .eyebrow{color:var(--ink)}.word-workshop-heading p{margin:6px 0}.word-mission{background:var(--word-soft);border-radius:22px;align-items:center;gap:20px;padding:22px;display:flex}.word-mission-number{background:var(--word-pop);width:80px;height:80px;box-shadow:0 4px 0 var(--word-edge);border-radius:26px;flex-shrink:0;place-items:center;font-size:40px;font-weight:800;display:grid;transform:rotate(-5deg)}.word-mission h2{margin:0;font-size:18px}.word-mission p{margin:4px 0;font-size:24px;font-weight:800}.word-mission div>span{color:var(--muted)}.word-options,.word-preview{min-width:0}.word-options>summary,.word-preview>summary{cursor:pointer;min-height:56px;padding:16px 0;font-weight:750}.word-options>summary>span,.word-preview>summary>span{color:var(--muted);margin-left:12px;font-size:14px;font-weight:500}.word-options>summary:focus-visible,.word-preview>summary:focus-visible{outline:3px solid var(--blue);outline-offset:4px;border-radius:8px}.word-options{margin-top:14px}.word-preview{border-top:1px solid var(--border);padding-top:8px}.word-preview[open]>summary{margin-bottom:16px}.word-round-size{margin-bottom:24px}.word-round-size label{flex-wrap:wrap;align-items:center;gap:14px;display:flex}.word-workshop-heading,.word-card-heading{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:18px;margin-bottom:24px;display:flex}.word-workshop-heading p,.word-card-heading p{color:var(--muted)}.word-workshop-heading p{color:var(--ink)}.word-modes{border:0;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin:26px 0;padding:0;display:grid}.word-modes legend{margin-bottom:14px;font-size:20px;font-weight:750}.word-mode{border:2px solid var(--border);cursor:pointer;background:#f4f8ff;border-radius:18px;align-items:flex-start;gap:10px;padding:16px;display:flex}.word-mode[data-selected=true]{border-color:var(--blue);background:#e8efff}.word-mode input{width:20px;height:20px;min-height:20px;accent-color:var(--blue);flex-shrink:0;margin:5px 0 0}.word-mode strong,.word-mode small{display:block}.word-mode small{color:var(--muted);margin-top:4px;font-size:14px}.word-start{flex-wrap:wrap;align-items:center;gap:20px;padding:16px 0 24px;display:flex}.word-start .primary{min-width:220px;min-height:60px;font-size:20px}.word-start p{color:var(--muted);margin:0}.word-start label,.word-card-heading label{gap:6px;display:grid}.word-card-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin-bottom:24px;display:grid}.word-flashcard{border:1px solid var(--border);overflow-wrap:anywhere;background:#f4f8ff;border-radius:20px}.word-flashcard summary{cursor:pointer;min-height:100px;padding:18px 20px}.word-flashcard summary:focus-visible{outline:3px solid var(--blue);outline-offset:-4px;border-radius:18px}.word-flashcard summary strong{margin-left:4px;font-size:28px}.word-flashcard summary span{color:var(--muted);margin-top:4px;font-size:14px;display:block}.word-flashcard>div{padding:0 20px 20px}.word-flashcard h4{margin:0 0 10px;font-size:20px}.word-flashcard p{margin-bottom:16px}.word-flashcard .speech-control{margin:0 10px 8px 0;display:inline-flex}@media (width<=1200px){.word-theme-grid,.word-modes{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (width<=1023px){.sidebar nav .nav-entry[data-nav=parent]{display:none}.nav-copy{font-size:12px}.nav-copy small{display:none}.nav-symbol{border-radius:10px;width:30px;height:30px}.sidebar nav button[aria-current=page]{box-shadow:inset 0 -3px var(--nav-ink,var(--blue))}}@media (width<=800px){.word-card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (width<=620px){.word-theme-grid,.word-card-grid,.word-modes{grid-template-columns:minmax(0,1fr)}.word-theme{padding:18px}.word-start .primary{width:100%}.word-hero{padding-top:12px}.word-path{gap:6px}.word-path li{text-align:center;flex-direction:column;gap:6px;padding:10px 4px;font-size:14px}.word-workshop{padding:20px 16px}.word-mission{gap:14px;padding:18px 14px}.word-mission-number{border-radius:18px;width:56px;height:64px;font-size:32px}.word-mission p{font-size:20px}.word-options>summary>span,.word-preview>summary>span{margin:4px 0 0 20px;display:block}}.exercise-controls{border:0;min-width:0;margin:0;padding:0}.visually-hidden{clip-path:inset(50%);white-space:nowrap;width:1px;height:1px;padding:0;position:absolute;overflow:hidden}.session-access{background:#fff8e5;border:2px solid #91acc5;border-radius:24px;align-items:center;gap:24px;margin-bottom:24px;padding:24px;display:flex}.session-access h2{margin:12px 0}.session-access p{color:var(--muted);line-height:1.65}.session-access-actions{flex:0 0 220px;gap:12px;display:grid}.draft-backup{border:1px solid var(--border);background:#fff;border-radius:16px;margin-bottom:20px;padding:12px 20px}.draft-backup summary{cursor:pointer;min-height:44px;padding:10px 0;font-weight:700}.draft-backup p{color:var(--muted);margin:12px 0}.draft-backup .draft-text{color:var(--ink);overflow-wrap:anywhere;font-size:20px}@media (width<=700px){.session-access{flex-direction:column;align-items:stretch;padding:20px}.session-access-actions{flex-basis:auto}}.account-security,.managed-accounts{margin-top:28px}.account-security>summary{cursor:pointer;min-height:48px;padding:10px 0;font-weight:750}.account-security>summary:focus-visible{outline:3px solid var(--blue);outline-offset:4px;border-radius:8px}.account-password-form{max-width:760px;margin:20px 0}.account-fields{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;display:grid}.account-fields .field{min-width:0}.ai-settings-disclosure{margin-top:28px}.ai-settings-disclosure>summary,.ai-advanced>summary{cursor:pointer;min-height:52px;padding:12px 0;font-weight:750}.ai-settings-disclosure>summary:focus-visible,.ai-advanced>summary:focus-visible{outline:3px solid var(--blue);outline-offset:4px;border-radius:8px}.ai-settings.card{box-shadow:none;border:0;padding:24px 0 0}.ai-settings h3{margin-top:32px}.ai-privacy,.ai-target{background:#e8efff;border-radius:20px;margin-top:24px;padding:20px}.ai-privacy p,.ai-settings .footnote{overflow-wrap:anywhere}.ai-connection-list{margin:16px 0;padding:0;list-style:none}.ai-connection-list li{border-bottom:1px solid var(--border);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px;padding:20px 0;display:flex}.ai-connection-list li>div{min-width:0}.ai-connection-list p,.ai-connection-list strong{overflow-wrap:anywhere}.ai-checkbox{cursor:pointer;align-items:flex-start;gap:12px;min-height:52px;padding:12px 0;display:flex}.ai-checkbox input{width:24px;height:24px;accent-color:var(--blue);flex:0 0 24px}.ai-explanation{border:2px solid var(--border);background:#f4f8ff;border-radius:24px;margin:24px 0;padding:clamp(16px,3vw,28px)}.ai-explanation-heading{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px;display:flex}.ai-explanation h3{margin:12px 0}.ai-explanation p{overflow-wrap:anywhere}.ai-example{background:#fff;border-radius:16px;margin:16px 0;padding:16px}.ai-example .teaching-english{font-family:Arial,sans-serif;font-size:24px}.training-steps{grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;margin:0 0 28px;padding:0;list-style:none;display:grid}.training-steps li{border:2px solid var(--border);border-radius:20px;flex-direction:column;gap:8px;padding:20px 16px;display:flex}.training-steps li[aria-current=step]{border-color:var(--blue);background:#e8efff}.training-steps li[data-complete=true]{background:var(--mint)}.training-steps small{color:var(--muted);font-size:14px}.training-step-number{background:var(--sun);border-radius:14px;place-items:center;width:44px;height:44px;font-size:20px;font-weight:800;display:grid;box-shadow:inset 0 -3px #b5803033}.training-next{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:24px;display:flex}.training-next>div{flex:320px}.training-coaching{background:#f4f8ff;border-radius:20px;margin:24px 0;padding:20px}.training-coaching summary{cursor:pointer;min-height:52px;padding:12px 0;font-weight:750}.training-coaching summary:focus-visible{outline:3px solid var(--blue);outline-offset:4px}.training-coaching .teaching-english{font-family:Arial,sans-serif;font-size:20px}.training-records ul{padding:0;list-style:none}.training-records li{border-bottom:1px solid var(--border);flex-wrap:wrap;gap:12px 24px;padding:16px 0;display:flex}.training-records span{color:var(--muted)}.training-practice{border-top:2px solid var(--border);margin-top:28px;padding-top:20px}.training-followups{margin:24px 0}.training-followups ul{margin:0;padding:0;list-style:none}.training-followups li{border-bottom:1px solid var(--border);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px 24px;padding:20px 0;display:flex}.training-followups li>div{overflow-wrap:anywhere;flex:260px;min-width:0}.topic-card>button+button{margin-top:12px}@media (width<=1023px){.training-steps{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (width<=480px){.training-steps{grid-template-columns:minmax(0,1fr)}.training-steps li{grid-template-columns:44px 1fr;align-items:center;display:grid}.training-steps small{grid-column:2}}.managed-account-list{margin:24px 0;padding:0;list-style:none}.managed-account-list li{border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;gap:20px;padding:20px 0;display:flex}.managed-account-list strong{overflow-wrap:anywhere}.managed-account-list p,.account-admin-form>p,.account-password-form>p,.managed-accounts .family-heading p{color:var(--muted);margin-top:8px}.account-state{color:var(--blue);background:#e8efff;border-radius:8px;margin-top:8px;padding:4px 10px;font-size:14px;display:inline-block}.account-row-actions,.account-pagination{flex-wrap:wrap;align-items:center;gap:12px;display:flex}.account-pagination{color:var(--muted);justify-content:flex-end;font-size:14px}.account-admin-form{border-top:2px solid var(--border);margin-top:28px;padding-top:24px}.account-admin-form .field{max-width:760px}@media (width<=700px){.account-fields{grid-template-columns:minmax(0,1fr);gap:0}.managed-account-list li{flex-direction:column;align-items:stretch}.account-row-actions>button{flex:1}.managed-accounts .family-heading{flex-direction:column;align-items:flex-start}}.practice-library[hidden]{display:none}.library-location{flex-wrap:wrap;align-items:center;gap:16px;margin-bottom:20px;display:flex}.library-location>p{color:var(--muted);overflow-wrap:anywhere;font-size:14px}.library-heading{flex-wrap:wrap;justify-content:space-between;align-items:end;gap:16px;margin:24px 0 12px;display:flex}.library-heading h1,.library-heading h2{text-wrap:balance;margin:0}.library-heading p{color:var(--muted)}.library-heading .eyebrow{color:var(--blue);margin-bottom:8px}.library-filters{margin:20px 0 28px}.library-filters input,.library-filters select{min-height:52px}.library-filters label:first-child{flex:260px;max-width:520px}.library-group-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:22px;display:grid}.library-item-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:22px;display:grid}.library-group,.library-item{text-align:left;border:2px solid var(--word-edge);background:var(--word-soft);min-width:0;color:var(--ink);box-shadow:0 5px 0 var(--word-edge);overflow-wrap:anywhere;border-radius:26px;flex-direction:column;align-items:start;gap:10px;padding:24px;transition:transform .14s,box-shadow .14s;display:flex}.library-group strong{font-size:21px;line-height:1.5}.library-item strong{font-size:23px;line-height:1.5}.library-group>span:not(.library-symbol),.library-item>span{font-size:15px}.library-group>span:nth-last-child(2),.library-item>span:nth-last-child(2){color:var(--muted)}.library-symbol{background:var(--word-pop);width:60px;height:60px;color:var(--ink);border-radius:20px;place-items:center;margin-bottom:8px;display:grid}.library-symbol svg{fill:none;stroke:currentColor;stroke-width:1.7px;stroke-linecap:round;stroke-linejoin:round;width:32px;height:32px}.library-card-action{align-items:center;gap:10px;margin-top:auto;padding-top:12px;font-weight:750;display:flex}.library-item-meta{color:var(--muted)}.library-item .library-card-action{color:var(--ink)}.library-group:active:not(:disabled),.library-item:active:not(:disabled){box-shadow:0 2px 0 var(--word-edge);transform:translateY(3px)}.library-workshop-link{border:1px solid var(--border);background:#fff;border-radius:24px;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:18px;margin-top:32px;padding:22px;display:flex}.library-workshop-link strong{font-size:20px}.library-workshop-link p{color:var(--muted)}.library-disclosure{margin:16px 0}.library-disclosure>summary{cursor:pointer;min-height:56px;padding:14px 0;font-weight:750}.library-disclosure>summary:focus-visible{outline:3px solid var(--blue);outline-offset:4px;border-radius:8px}.library-disclosure[open]>summary{margin-bottom:14px}.library-disclosure .field{max-width:300px}.library-disclosure select{min-height:52px}.pattern-preparation{max-width:1060px;margin:0 auto}.pattern-ready-hero{background:var(--grape-soft)}.pattern-mission{border:2px solid var(--grape-ink)}.pattern-mission>h2{overflow-wrap:anywhere;font-family:Arial,sans-serif;font-size:clamp(24px,3vw,32px);line-height:1.6}.frame-slot{border:1.5px dashed var(--grape-ink);-webkit-box-decoration-break:clone;box-decoration-break:clone;background:#fff;border-radius:9px;margin:0 3px;padding:2px 7px;font:600 .76em/2.2 Segoe UI,Microsoft YaHei,sans-serif;display:inline}.pattern-mission .frame-help{color:var(--grape-ink);font-size:15px}.pattern-mission>p{color:var(--muted);margin-top:10px}.pattern-example{background:var(--grape-soft);overflow-wrap:anywhere;border-radius:18px;padding:18px;font-family:Arial,sans-serif;font-size:24px;line-height:1.7}.pattern-task-preview{background:var(--grape-soft);border-radius:22px;align-items:center;gap:20px;margin:20px 0;padding:22px;display:flex}.pattern-task-preview>span{background:#c7a6f5;border-radius:20px;flex-shrink:0;place-items:center;width:64px;height:64px;font-size:36px;font-weight:800;display:grid}.pattern-task-preview h3{margin:0 0 4px;font-size:22px}.pattern-task-preview p{color:var(--muted)}.pattern-start{flex-wrap:wrap;align-items:center;gap:16px;margin:20px 0;display:flex}.pattern-start .primary,.training-journey>.primary{min-height:60px;font-size:20px}.pattern-start p{color:var(--muted)}.training-journey>h2{margin-bottom:12px}.training-journey>.primary{margin:22px 0 12px}.training-journey .training-path-details{border-top:1px solid var(--border);margin-top:24px}.training-journey .training-practice{margin:16px 0 0;padding:0;display:block}.training-practice .field{margin:16px 0}.training-hero{margin-top:18px}.training-hero .scene-stage--compact{flex:0 0 220px}@media (hover:hover) and (pointer:fine){.app-shell:not([data-quiet=true]) .library-group:hover:not(:disabled),.app-shell:not([data-quiet=true]) .library-item:hover:not(:disabled){transform:translateY(-3px)}}@media (width<=1320px){.library-group-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}@media (width<=1100px){.library-group-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (width<=620px){.library-group-grid,.library-item-grid{grid-template-columns:minmax(0,1fr);gap:18px}.library-group,.library-item{padding:22px 20px}.library-filters label{flex:100%}.pattern-task-preview{align-items:start;gap:14px;padding:18px}.pattern-task-preview>span{width:48px;height:56px;font-size:28px}.pattern-start .primary{width:100%}.training-hero .scene-stage--compact{flex:none}}.concept-disclosure{border-top:1px solid var(--border);padding-top:8px}.concept-lab{background:#fffdf4;border:2px solid #9a6700;border-radius:26px;margin-bottom:24px;padding:24px}.concept-heading{flex-wrap:wrap;justify-content:space-between;align-items:start;gap:16px;display:flex}.concept-heading h3{margin:0 0 8px;font-size:24px}.concept-heading p{color:var(--muted)}.concept-heading .eyebrow{color:var(--ink)}.concept-choices{grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin:22px 0;display:grid}.concept-choice{border:2px solid var(--control-border);text-align:left;background:#fff;border-radius:16px;min-height:56px;padding:12px;font-weight:750}.concept-choice[aria-pressed=true]{border-color:var(--blue);background:var(--sky-soft);box-shadow:inset 0 -3px var(--blue)}.concept-invitation{background:var(--sun-soft);border:2px dashed #9a6700;border-radius:20px;padding:24px}.concept-stage-layout{grid-template-columns:minmax(0,1.2fr) minmax(0,1fr);align-items:center;gap:24px;display:grid}.concept-scene{min-width:0}.concept-viewport{pointer-events:none;background:linear-gradient(#eef7ff,#fff0b8);border-radius:24px;height:280px;overflow:hidden}.concept-scene-shell{min-width:0}.concept-stage-layout[data-measured=true]{align-items:start}.measurement-controls>p{color:var(--ink);margin:14px 0;font-size:16px}.measurement-choices{grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;display:grid}.measurement-controls[data-count="2"] .measurement-choices{grid-template-columns:repeat(2,minmax(0,1fr))}.measurement-choices button{border:2px solid var(--control-border);overflow-wrap:anywhere;background:#fff;border-radius:18px;flex-direction:column;align-items:center;gap:8px;min-width:0;min-height:108px;padding:12px 8px;display:flex}.measurement-choices button[aria-pressed=true]{background:var(--sky-soft);border-color:var(--blue);box-shadow:inset 0 0 0 1px var(--blue)}.measurement-number{border-radius:11px;place-items:center;width:32px;height:32px;font-weight:800;display:grid}.measurement-choices button strong,.measurement-choices button strong+span{display:block}.measurement-choices button small{font-size:14px}.measurement-controls .measurement-status{background:var(--sun-soft);border-radius:16px;padding:14px}@media (width<=620px){.measurement-choices,.measurement-controls[data-count="2"] .measurement-choices{grid-template-columns:minmax(0,1fr)}.measurement-choices button{flex-direction:row;gap:12px;min-height:64px;padding:12px}.measurement-choices button>span:nth-child(2){text-align:left;flex:1}}.concept-flat{width:100%;height:100%;display:block}.concept-scene>p{padding-top:12px}.concept-observation{border:1px solid var(--border);background:#fff;border-radius:22px;min-width:0;padding:22px}.concept-observation h4{margin:0 0 14px;font-size:20px}.concept-observation>p:not(.concept-word){font-size:18px;line-height:1.8}.concept-observation .concept-word{color:var(--blue);overflow-wrap:anywhere;margin-bottom:14px;font:700 clamp(26px,4vw,36px)/1.6 Arial,sans-serif}.concept-observation .footnote{margin-top:12px}.concept-controls{flex-wrap:wrap;align-items:center;gap:12px;margin:22px 0;display:flex}.concept-controls>span{color:var(--muted);font-weight:700}.concept-sentence{background:var(--mint-play);border-radius:20px;margin:24px 0 12px;padding:20px}.concept-sentence>p[lang=en]{margin-bottom:12px;font:400 22px/1.8 Arial,sans-serif}.concept-sentence .speech-control{margin-top:16px}.concept-lab>.footnote{margin-top:20px}@media (width<=1100px){.concept-stage-layout{grid-template-columns:minmax(0,1fr)}}@media (width<=620px){.concept-lab{padding:18px 14px}.concept-choices{grid-template-columns:minmax(0,1fr)}.concept-viewport{height:240px}.concept-observation{padding:18px}}.page-motion{animation:.32s cubic-bezier(.22,1,.36,1) both page-arrive}[data-scene-page=parent].page-motion{animation:none}.discovery-hero{background:linear-gradient(120deg,#fff 15%,#edf8f3 100%);border:1px solid #d6e5f0;border-radius:32px;justify-content:space-between;align-items:center;gap:24px;margin-bottom:24px;padding:20px 24px 20px 28px;display:flex;box-shadow:0 7px #e1ebf4}.discovery-hero>div:first-child,.word-hero>div:first-child,.lesson-hero>div:first-child{min-width:0}.discovery-hero h1{text-wrap:balance}.scene-stage{background:radial-gradient(at 50% 45%,#fffc 0 34%,#e4f2ff88 65%,#0000 66%);border-radius:30px;flex:0 0 320px;width:320px;max-width:100%;position:relative}.scene-viewport{pointer-events:none;height:228px;position:relative}.scene-flat{width:100%;height:100%;display:block}.scene-controls{text-align:center;padding:0 8px 8px;position:relative}.scene-play{min-height:48px;color:var(--ink);background:#fffdf4;border:1px solid #91acc5;border-radius:16px;padding:9px 16px;font-size:14px;font-weight:750;box-shadow:0 4px #d3dfeb}.scene-actions{flex-wrap:wrap;justify-content:center;gap:8px;display:flex}.word-object-scene{background:#fff4d7;border-radius:20px;margin-top:16px;padding:8px}.word-object-viewport{pointer-events:none;width:100%;height:220px}.word-object-flat{width:100%;height:100%}.word-object-caption,.word-study-note{color:var(--muted);font-size:14px;line-height:1.6}.word-object-scene .text-button{min-height:52px}.companion-picker{border:1.5px solid var(--control-border);background:var(--surface);border-radius:20px;margin:0 20px 20px}.companion-picker>summary{cursor:pointer;min-height:56px;padding:16px;font-weight:750}.companion-picker>summary span{color:var(--muted);margin-left:12px;font-size:14px;font-weight:500;display:inline-block}.companion-picker-body{padding:0 16px 16px}.companion-picker fieldset{border:0;margin:0 0 16px;padding:0}.companion-picker legend{margin-bottom:12px;padding:0;font-weight:700}.companion-options{grid-template-columns:repeat(auto-fit,minmax(min(100%,160px),1fr));gap:12px;display:grid}.companion-option{border:2px solid var(--control-border);cursor:pointer;background:#fff8e6;border-radius:20px;flex-direction:column;gap:8px;padding:12px;display:flex}.companion-option[data-selected=true]{border-color:var(--primary);background:var(--primary-soft)}.companion-option:has(input:focus-visible){outline:3px solid var(--primary);outline-offset:3px}.companion-option svg{width:100%;height:120px}.companion-preview{text-align:center;background:#fff8e6;border-radius:20px;margin:16px 0;padding:12px}.companion-preview .scene-stage{width:min(100%,360px);margin:0 auto}.companion-option-heading{align-items:center;gap:10px;min-height:52px;display:flex}.companion-option input{width:22px;height:22px;accent-color:var(--primary)}.companion-option>span:not(.companion-option-heading),.companion-option small{color:var(--muted);font-size:14px;line-height:1.5}.map-footer .scene-actions{justify-content:flex-start}.scene-controls p{min-height:44px;color:var(--muted);margin:12px 0 0;font-size:14px;line-height:1.5}.scene-mode-note{text-align:center;color:var(--muted);padding-bottom:8px;font-size:14px;display:block}.scene-stage--compact{background:0 0;width:240px;margin:0 auto}.scene-stage--compact .scene-viewport{height:136px}.world-scene{background:radial-gradient(at 50% 40%,#fff9e4 0%,#eff8ff 65%,#e3f1fa 100%);height:400px}.flat-map{width:100%;height:100%;display:block}.world-static{height:100%;position:relative}.world-static p{text-align:center;width:100%;color:var(--muted);padding:0 20px;font-size:14px;position:absolute;bottom:36px}.world-caption{-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);border:1px solid #d6e5f0;padding:6px 12px;font-size:14px}.word-hero{background:linear-gradient(115deg, var(--sun-bright) 0%, var(--sun-bright) 55%, var(--sun-soft) 100%);border:2px solid #b27b12;border-radius:32px;margin-bottom:28px;padding:24px 28px;box-shadow:0 7px #e7b84c}.word-hero .scene-stage{background:var(--sky-play);border:3px solid #fff;border-radius:50% 44% 46% 40%;box-shadow:0 8px #172b4d15}@media (width<=620px){.word-browse>summary{flex-wrap:wrap;gap:10px;padding:16px}.word-browse>summary>span:nth-child(2){flex:1;min-width:0}.word-browse-toggle{text-align:right;width:100%}.word-chooser{padding:18px 14px}.word-workshop-heading{padding:18px}}.word-hero .scene-controls p,.word-hero .scene-mode-note,.word-hero .lead{color:var(--ink)}.word-flashcard:nth-child(4n+1){background:var(--sun-soft)}.word-flashcard:nth-child(4n+2){background:var(--coral-soft)}.word-flashcard:nth-child(4n+3){background:var(--mint-play)}.word-flashcard:nth-child(4n+4){background:var(--grape-soft)}.discovery-hero{background:var(--mint-play);border-color:#8fbea4}[data-scene-page=patterns] .discovery-hero{background:var(--grape-soft);border-color:#b49bd6}[data-scene-page=topics] .discovery-hero{background:var(--coral-soft);border-color:#d39d88}.lesson-hero{border:1px solid var(--border);background:linear-gradient(120deg,#fff,#edf4ff);border-radius:30px;padding:24px}.primary,.secondary,.soft-button,.scene-play,.answer-option,.token,.unit-node,.speech-button{transition:transform .12s,box-shadow .16s,background-color .18s}.primary:active:not(:disabled),.secondary:active:not(:disabled),.scene-play:active,.answer-option:active:not(:disabled),.token:active:not(:disabled),.speech-button:active{transform:translateY(3px)scale(.98)}.token.picked{animation:.24s cubic-bezier(.18,.89,.32,1.2) both token-land}.answer-option[aria-pressed=true]{animation:.22s ease-out both choice-settle}.feedback{animation:.28s ease-out both feedback-arrive;position:relative}.feedback[data-outcome=correct]{border:2px solid #8ec6a9;box-shadow:0 5px #c9e6d6}.feedback[data-outcome=hinted]{border-left:5px solid #b68d28}.feedback[data-outcome=incorrect]{border-left:5px solid #bf6870}.word-flashcard[open]>div{animation:.22s ease-out both feedback-arrive}.topic-grid>:nth-child(-n+6),.pattern-grid>:nth-child(-n+6),.word-theme-grid>:nth-child(-n+6),.course-grid>:nth-child(-n+6){animation:.32s ease-out both card-arrive}.topic-grid>:nth-child(2),.pattern-grid>:nth-child(2),.word-theme-grid>:nth-child(2),.course-grid>:nth-child(2){animation-delay:40ms}.topic-grid>:nth-child(3),.pattern-grid>:nth-child(3),.word-theme-grid>:nth-child(3),.course-grid>:nth-child(3){animation-delay:80ms}.topic-grid>:nth-child(4),.pattern-grid>:nth-child(4),.word-theme-grid>:nth-child(4),.course-grid>:nth-child(4){animation-delay:.12s}.topic-grid>:nth-child(5),.pattern-grid>:nth-child(5),.word-theme-grid>:nth-child(5),.course-grid>:nth-child(5){animation-delay:.16s}.topic-grid>:nth-child(6),.pattern-grid>:nth-child(6),.word-theme-grid>:nth-child(6),.course-grid>:nth-child(6){animation-delay:.2s}@media (hover:hover) and (pointer:fine){.topic-card,.pattern-card,.teaching-card,.course-card{transition:transform .18s,box-shadow .18s}.topic-card:hover,.pattern-card:hover,.teaching-card:hover,.course-card:hover{transform:translateY(-3px);box-shadow:0 9px #dce7f2,0 18px 30px #172b4d0d}.scene-play:hover{background:#fff2c2}}@keyframes page-arrive{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}@keyframes card-arrive{0%{opacity:0;translate:0 10px}to{opacity:1;translate:0}}@keyframes token-land{0%{opacity:.4;transform:translateY(-9px)scale(.94)}to{opacity:1;transform:none}}@keyframes choice-settle{50%{transform:translateY(2px)scale(.98)}}@keyframes feedback-arrive{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}@media (width<=1100px){.scene-stage{flex-basis:280px;width:280px}.scene-stage--compact{width:220px}}@media (width<=760px){.discovery-hero,.word-hero,.lesson-hero{flex-direction:column;align-items:stretch;gap:8px;padding:20px}.scene-stage{flex-basis:auto;align-self:center;width:320px}.scene-viewport{height:200px}.scene-controls p{min-height:42px}.scene-stage--compact{width:220px}.world-scene{height:340px}.toolbar{flex-wrap:wrap;justify-content:flex-end}}.app-shell[data-quiet=true] *,.app-shell[data-quiet=true] :before,.app-shell[data-quiet=true] :after{scroll-behavior:auto!important;transition:none!important;animation:none!important}.app-shell[data-quiet=true] .topic-card:hover,.app-shell[data-quiet=true] .pattern-card:hover,.app-shell[data-quiet=true] .teaching-card:hover,.app-shell[data-quiet=true] .course-card:hover{transform:none}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}.household-access>summary{cursor:pointer;flex-wrap:wrap;align-items:center;gap:8px 20px;min-height:52px;display:flex}.household-access>summary span{color:var(--muted);font-size:16px}.household-access-body{gap:24px;margin-top:20px;display:grid}.household-access-body>section{border-top:1px solid var(--border);padding-top:20px}.household-members{gap:12px;padding:0;list-style:none;display:grid}.household-members>li{background:var(--bg);border-radius:18px;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;padding:16px;display:flex}.household-members p{margin:6px 0}.household-actions{flex-wrap:wrap;gap:12px;display:flex}.household-role{border:1px solid var(--control-border);cursor:pointer;border-radius:16px;align-items:center;gap:12px;min-height:64px;margin-block:12px;padding:12px;display:flex}.household-role:has(input:checked){background:var(--primary-soft);border-color:var(--primary)}.household-role input{flex:none;width:22px;height:22px}.household-role small{color:var(--muted);margin-top:4px;font-size:14px;display:block}.household-confirm{border:2px solid var(--primary);background:var(--primary-soft);border-radius:20px;padding:20px}.household-share textarea{overflow-wrap:anywhere;font-family:ui-monospace,monospace;font-size:16px}.household-confirm:focus{outline:3px solid var(--primary);outline-offset:4px}