:root{color-scheme:dark;--bg:#0f172a;--panel:#111d32;--line:#29364d;--muted:#9aaac1;--green:#34d399;--amber:#fbbf24;--sky:#38bdf8;--purple:#c084fc}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:#f8fafc;font-family:Inter,Segoe UI,Arial,sans-serif;font-size:22px;line-height:1.6}button,input,select,textarea{font:inherit}button,a,input,select,summary{-webkit-tap-highlight-color:transparent}button{cursor:pointer;color:inherit;background:#1c2940;border:1px solid #34425b;border-radius:11px;padding:10px 16px;font-weight:650;transition:.18s}button:hover{background:#2a3954;border-color:#7185a5;transform:translateY(-1px)}button:disabled{opacity:.45;cursor:not-allowed;transform:none}button:focus-visible,a:focus-visible,summary:focus-visible{outline:2px solid var(--sky);outline-offset:4px}a{color:var(--sky)}h1,h2,h3,h4,p{margin:0 0 12px}h1{font-size:67px;line-height:1.15;letter-spacing:-1.5px}h2{font-size:42px;line-height:1.25;letter-spacing:-.6px}h3{font-size:29px}h4{font-size:21px}small,.small{font-size:19px}.muted{color:var(--muted)}.sky,.future{color:var(--sky)}.present{color:var(--green)}.past{color:var(--amber)}.conditional{color:var(--purple)}.rose{color:#fb7185}.mono{font-family:SFMono-Regular,Consolas,monospace}.eyebrow{font-size:16px;text-transform:uppercase;letter-spacing:2px;font-weight:800;color:#a5b4fc;margin-bottom:12px}.tag{font-size:16px;letter-spacing:.5px;padding:4px 9px;border:1px solid #3b4a68;border-radius:7px;display:inline-block;color:#b6c6e0;background:#14223b}.tag.green{color:var(--green);border-color:#235c50;background:#0e302c}.tag.purple{color:#c4b5fd;background:#242045;border-color:#4b3d77}.pill{border-radius:30px}.primary{border:0;background:linear-gradient(110deg,#6366f1,#0284c7);color:#fff;box-shadow:0 5px 20px #0284c720}.primary:hover{background:linear-gradient(110deg,#818cf8,#0ea5e9)}.greenbtn{background:linear-gradient(110deg,#34d399,#0d9488);color:#062c25;border:0}.outline{background:transparent}.between{display:flex;align-items:center;justify-content:space-between;gap:14px}.row{display:flex;align-items:center;gap:10px;flex-wrap:wrap}.stack{display:grid;gap:18px}.grid2{display:grid;grid-template-columns:1fr 1fr;gap:18px}.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:15px}.grid4{display:grid;grid-template-columns:repeat(4,1fr);gap:15px}.panel{background:linear-gradient(140deg,#152139,#101a2d);border:1px solid var(--line);border-radius:20px;padding:24px}.inset{background:#0b1426;border:1px solid var(--line);border-radius:13px;padding:18px}.top{max-width:1360px;margin:auto;padding:18px 28px;display:flex;align-items:center;justify-content:space-between;gap:20px}.brand{display:flex;gap:12px;align-items:center;color:#fff;text-decoration:none;font-size:37px;font-weight:850;letter-spacing:-1px;line-height:1.3}.brand small{display:block;font-size:13px;letter-spacing:2.1px;color:#92a1ba;margin-top:3px}.logo{display:grid;place-items:center;width:43px;height:44px;border-radius:13px;background:linear-gradient(135deg,#34d39925,#38bdf820,#c084fc30);border:1px solid #458a9f;font-size:40px;color:#7dd3fc}header{border-bottom:1px solid var(--line);background:#0f172af5}nav{display:flex;gap:4px;padding:5px;background:#091224;border:1px solid #253149;border-radius:14px}nav button{border:0;background:transparent;font-size:19px;color:#a6b5ca;padding:9px 13px;white-space:nowrap}nav button.active{background:linear-gradient(100deg,#4f46e5,#0284c7);color:#fff}.icon{padding:7px 12px;font-size:32px}.anchors{background:#0a1325;border-top:1px solid #1c2940;display:flex;justify-content:center;gap:32px;padding:9px 20px;font-size:16px}.anchors>span{color:#8f9fb9}main{max-width:1250px;margin:auto;padding:30px 28px 50px;min-height:80vh}footer{border-top:1px solid var(--line);padding:24px 30px;display:flex;justify-content:space-between;gap:15px;font-size:18px;color:#8292ad}.subnav{display:flex;gap:25px;border-bottom:1px solid var(--line);margin-bottom:24px}.subnav button{background:none;border:0;border-radius:0;padding:0 0 12px;color:var(--muted)}.subnav button.active{color:#fff;border-bottom:2px solid var(--sky)}.hero{display:grid;grid-template-columns:1.15fr .85fr;overflow:hidden;border:1px solid #384162;border-radius:24px;background:radial-gradient(ellipse at 25% 20%,#312e8140,transparent 75%),#111c31;margin-bottom:22px}.hero-copy{padding:34px 34px 30px}.gradient{background:linear-gradient(90deg,#34d399,#7dd3fc,#c084fc);color:transparent;background-clip:text}.hero p{color:#aebbd1;max-width:480px;font-size:21px}.hero-image{position:relative;min-height:280px}.hero-image>img{width:100%;height:100%;object-fit:cover;position:absolute}.hero-image:after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,#111c31,transparent 30%)}.image-caption{position:absolute;bottom:22px;right:20px;left:45px;z-index:1;background:#0b1426e8;border:1px solid #ffffff25;border-radius:12px;padding:12px 16px}.stats{display:flex;gap:25px;margin-top:25px}.stats strong{font-size:30px;display:block;color:#f1f5f9}.stats small{color:#94a3b8;font-size:16px}.path{display:grid;grid-template-columns:repeat(6,1fr);gap:12px;margin:18px 0 26px}.level{background:#111d32;text-align:left;border:1px solid #2c3a53;padding:15px 17px;position:relative}.level.selected{border-color:#34d399;background:#0c332d66;box-shadow:0 0 25px #34d39908}.level strong{display:block;font-size:37px;line-height:1.3}.level small{color:#9aaac1;font-size:16px}.level .bar{height:3px;margin-top:13px;background:#2c3a50;border-radius:4px}.bar i{display:block;height:100%;background:#34d399;border-radius:4px}.workspace{display:grid;grid-template-columns:290px 1fr;gap:22px}.lessonlist{padding:9px}.lessonlist button{display:block;width:100%;text-align:left;border:0;background:transparent;margin:3px 0;padding:14px 12px;font-size:19px;line-height:1.4}.lessonlist button.active{background:#173e393d;color:#6ee7b7;border:1px solid #2b6354}.lessonlist button span{display:inline-flex;width:26px;height:26px;border:1px solid #3a4a61;border-radius:9px;justify-content:center;align-items:center;margin-right:8px;font-family:monospace;font-size:18px}.lessonlist button small{display:block;margin-left:36px;color:#8292ad;margin-top:4px}.lessonbody{border-color:#2b5e51}.rule{border-left:3px solid #34d399;padding:14px 18px;background:#0b1426;border-radius:0 10px 10px 0;margin:20px 0;color:#c1ccdd;font-size:21px}.example{padding:14px 0;border-bottom:1px solid #26354b;display:flex;justify-content:space-between;align-items:center;gap:10px}.example:last-child{border:0}.chunk{display:inline-block;background:#1b2940;border:1px solid #31415a;border-radius:7px;padding:3px 8px;margin:0 3px 5px 0;font-size:27px}.chunk:nth-child(2n){color:#6ee7b7;border-color:#2b584d;background:#112f2b}.example p{margin:0;color:#92a3bd;font-size:19px}.listen{padding:5px 11px;border-radius:50%;background:#1b3048;color:#7dd3fc;font-size:26px}.check{margin-top:20px;background:#0a1424;border:1px solid #2b3b53;border-radius:14px;padding:20px}.answerbox{padding:12px 15px;background:#071021;border:1px solid #425371;border-radius:10px;color:#fff;min-width:0;flex:1}input,select,textarea{background:#0b1426;color:#f1f5f9;border:1px solid #3b4a63;border-radius:9px;padding:10px 12px}label{display:block;margin:12px 0}label select{display:block;width:100%;margin-top:7px}.feedback{margin-top:13px;font-size:21px;min-height:20px}.sectionhead{margin:0 0 24px}.stage{padding:20px;text-align:left;background:#111d32;border:1px solid #2c3951;border-radius:17px}.stage.active{border-color:var(--accent);background:color-mix(in srgb,var(--accent) 9%,#0f172a)}.stage strong{display:block;font-size:29px;color:#f1f5f9;margin:8px 0}.stage small{color:var(--accent)}.stem{color:#94a3b8}.ending{color:var(--accent);font-weight:800;text-decoration:underline;text-underline-offset:5px}.verbcard{text-align:left;padding:18px;border:1px solid #2e3d55;border-radius:14px;background:#101b2e}.verbcard .form{font-size:40px;margin:9px 0}.verbcard small{color:#9aaac1}.verbselect{display:flex;gap:8px;flex-wrap:wrap;margin:20px 0}.verbselect button{padding:7px 11px;font-size:19px}.verbselect button.active{background:#e2e8f0;color:#0f172a}.flashlayout{display:grid;grid-template-columns:1fr 300px;gap:22px}.flashcard{min-height:410px;border:1px solid var(--accent,#34d399);border-radius:22px;padding:28px;background:linear-gradient(130deg,#15243a,#101a2e);display:flex;flex-direction:column;justify-content:space-between;perspective:1000px}.flashcard.revealed{animation:turn .4s ease-out}@keyframes turn{0%{transform:rotateY(50deg);opacity:.3}to{transform:rotateY(0);opacity:1}}.prompt{text-align:center;padding:35px 10px}.prompt h2{font-size:58px;margin-top:15px}.ratings{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}.ratings button{padding:10px 5px}.ratings small{display:block;font-size:16px}.choices{display:grid;grid-template-columns:1fr 1fr;gap:10px}.storygrid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.storyscene{border:1px solid #334155;background:#111d32;border-radius:17px;overflow:hidden}.storyscene img{width:100%;height:175px;object-fit:cover;display:block}.storyscene .text{padding:17px}.storyscene p{font-size:24px;line-height:1.7}.storyscene small{color:#97a8c1}.storyscene mark{background:#145043;color:#86efcf;border-radius:4px;padding:2px 4px}.storyhero{display:grid;grid-template-columns:1fr 1fr;gap:25px;align-items:center;margin-bottom:25px}.storyhero audio{width:100%;height:38px;margin-top:12px}.characters{display:grid;grid-template-columns:repeat(3,1fr);gap:15px}.avatar{height:50px;width:50px;border-radius:16px;display:grid;place-items:center;font-size:38px;background:#20354b;margin-bottom:15px}.concept svg{width:100%;height:180px;background:#0b1426;border-radius:14px}.concept{text-align:center}.concept h3{margin-top:10px}.matrixwrap{overflow:auto}table{width:100%;border-collapse:collapse;text-align:left}th,td{padding:13px 15px;border-bottom:1px solid #29364d;font-size:21px;white-space:nowrap}th{font-size:18px;color:#9aaac1;background:#0b1426}td button{padding:0;background:none;border:0;font-family:monospace;font-size:27px}details{border:1px solid #334155;border-radius:14px;padding:15px 18px;margin:12px 0;background:#101c30}summary{cursor:pointer;font-weight:700}.scope{font-size:19px;color:#9caec8;background:#142039;border:1px solid #31405d;border-radius:12px;padding:12px 16px;margin:22px 0}.metric strong{font-size:45px;display:block}.metric span{color:#92a3bd;font-size:19px}dialog{max-width:460px;width:92%;border:1px solid #475569;border-radius:22px;background:#111d32;color:#fff;padding:25px}dialog::backdrop{background:#020617bd;backdrop-filter:blur(5px)}.import{display:inline-block;border:1px solid #475569;border-radius:10px;padding:9px 12px;cursor:pointer}.import input{max-width:200px;display:block;font-size:16px}.danger{color:#fda4af;margin-top:12px}#toast{position:fixed;bottom:25px;right:25px;z-index:10;background:#173d35;border:1px solid #34d39970;border-radius:13px;padding:12px 20px;box-shadow:0 10px 35px #0006;display:none;max-width:380px}.progressline{height:6px;background:#22314b;border-radius:5px;overflow:hidden;margin:12px 0}.progressline i{display:block;height:100%;background:linear-gradient(90deg,#34d399,#38bdf8)}.accentbar{display:flex;gap:6px;margin-bottom:10px;justify-content:center}.accentbar button{padding:3px 10px}.notes{color:#b6c5da;font-size:21px;line-height:1.9}.notes li{margin-bottom:5px}.modebar{display:flex;gap:8px;flex-wrap:wrap}.modebar .active{background:#4f46e5}.tick{color:#34d399}.right{text-align:right}@media(max-width:1050px){.top{flex-wrap:wrap}nav{order:3;width:100%;overflow:auto}.anchors{gap:15px;flex-wrap:wrap}.workspace{grid-template-columns:240px 1fr}.storygrid{grid-template-columns:1fr 1fr}.hero-copy{padding:28px}h1{font-size:56px}}@media(max-width:700px){main{padding:22px 16px}.top{padding:15px 16px}.anchors>span{display:none}.anchors{font-size:14px;gap:8px 15px}.hero{grid-template-columns:1fr}.hero-image{min-height:210px}.hero-image:after{background:linear-gradient(180deg,#111c31,transparent 40%)}h1{font-size:54px}.path{grid-template-columns:repeat(3,1fr)}.workspace,.flashlayout,.storyhero{grid-template-columns:1fr}.lessonlist{max-height:220px;overflow:auto}.grid3,.characters,.grid4{grid-template-columns:1fr 1fr}.grid2{grid-template-columns:1fr}.panel{padding:20px}.storyscene img{height:150px}.storyscene .text{padding:12px}.between{flex-wrap:wrap}footer{flex-direction:column}.prompt h2{font-size:45px}.subnav{gap:18px}.flashcard{padding:20px}.row .answerbox{width:100%}}@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important;scroll-behavior:auto!important}}html{scroll-behavior:smooth}body{overflow-wrap:anywhere}main{max-width:1720px}.top{max-width:1800px;flex-wrap:wrap}nav{order:3;flex-wrap:wrap;width:100%;justify-content:center}nav button{white-space:normal}.anchors{flex-wrap:wrap;gap:12px 28px}.brand small{font-size:13px}.subnav{flex-wrap:wrap;gap:15px 30px}.hero{grid-template-columns:1fr}.hero-image{min-height:360px}.path{grid-template-columns:repeat(4,minmax(0,1fr))}.workspace{grid-template-columns:330px minmax(0,1fr);align-items:start}.workspace>aside{position:sticky;top:20px;max-height:95vh;overflow:auto}.lessonlist button{line-height:1.5}.lessonlist button span{width:38px;height:38px;margin-bottom:8px}.lessonlist button small{margin-left:0;margin-top:8px}.panel{padding:30px}.rule{padding:22px}.example{padding:24px 0;align-items:flex-start}.listen{min-width:48px;min-height:48px}.example p{margin-top:12px}.chunk{margin-bottom:10px}.inset{padding:23px}.vocab-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}.vocab-entry h3{margin:18px 0 8px}.vocab-entry .listen{vertical-align:middle}.sound-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;margin:24px 0}.sound-letter{display:block;font-size:51px;line-height:1.1;margin-bottom:14px}.sound-grid p{font-size:19px}.welcome{background:radial-gradient(ellipse at top left,#0c725d45,transparent 75%),linear-gradient(120deg,#19264b,#111d32);border-color:#34d39977;padding:40px}.welcome h1{background:linear-gradient(90deg,#34d399,#38bdf8,#c084fc);color:transparent;background-clip:text}.audio-box{background:#0b1426;border:1px solid #34435d;border-radius:16px;padding:22px;margin:20px 0}.audio-box audio{width:100%;display:block;margin:18px 0;min-height:45px}.audio-box b,.audio-box small{display:block}.memory-visual{margin:0 auto 20px;text-align:center;background:linear-gradient(145deg,#091526,#1b2b45);border:1px solid #334965;border-radius:17px;padding:18px;width:100%;max-width:440px}.memory-visual svg{display:block;width:100%;height:175px}.memory-visual figcaption{font-size:19px;line-height:1.35;margin-top:12px}.memory-visual figcaption span{font-size:16px;color:#94a3b8;display:block;margin-top:8px}.flashcard>.memory-visual{margin-top:22px;max-width:450px}.flashcard{min-height:650px}.flashlayout{grid-template-columns:minmax(0,1fr) 360px;align-items:start}.prompt{padding:15px 0}.prompt h2{font-size:58px}.ratings{grid-template-columns:repeat(2,minmax(0,1fr))}.ratings button{padding:17px 8px}.ratings small{font-size:16px}.modebar{gap:12px}.modebar button{font-size:19px}.mini-card{background:#0b1426;border:1px solid #33465f;border-radius:17px;padding:25px;margin:20px 0}.mini-card .memory-visual{max-width:350px}.mini-card h3{text-align:center}.mini-card>p{text-align:center}.mini-card .row{justify-content:center}.exercise-question{margin:20px 0}.accentbar{flex-wrap:wrap}.accentbar button{min-width:42px;min-height:44px}.row{gap:12px}.row .answerbox{flex:1 1 260px;max-width:100%}.sources{margin-top:25px}.sources p{font-size:19px}.storygrid{grid-template-columns:repeat(2,minmax(0,1fr))}.storyscene img{height:300px}.storyscene .text{padding:26px}.storyscene p{font-size:22px}.storyhero{grid-template-columns:1fr}.characters,.grid4,.grid3{grid-template-columns:repeat(2,minmax(0,1fr))}.grid2{grid-template-columns:1fr}.grid3,.grid4,.grid2{min-width:0}#lessonDraft{display:block;width:100%;margin:18px 0}#toast{max-width:600px;font-size:19px;max-height:50vh;overflow:auto}dialog{max-width:760px}.import input{max-width:100%;font-size:16px}td button{white-space:normal}.verbcard .form{overflow-wrap:anywhere}footer{flex-wrap:wrap}.scope{font-size:19px}.tag{white-space:normal}.brand{font-size:37px}.logo{width:66px;height:66px;flex-shrink:0}.between{flex-wrap:wrap}input,textarea,select{max-width:100%;min-width:0}.row button{max-width:100%}button{overflow-wrap:anywhere}.progressline{height:10px}.sectionhead h1{font-size:67px}.lessonbody h2{font-size:42px}@media(max-width:1100px){.workspace{grid-template-columns:1fr}.workspace>aside{position:static;max-height:none}.lessonlist{display:flex;flex-wrap:wrap;gap:12px;max-height:330px;overflow:auto}.lessonlist>.eyebrow{width:100%}.lessonlist button{width:calc(50% - 6px);margin:0}.workspace>aside>.inset{display:none}.flashlayout{grid-template-columns:1fr}.flashlayout>aside{order:2}.path{grid-template-columns:repeat(3,minmax(0,1fr))}.sectionhead h1{font-size:67px}}@media(max-width:700px){main{padding:20px 12px}.top{padding:16px 12px;gap:15px}.brand{font-size:37px}.brand small{font-size:13px;letter-spacing:1px}.logo{width:50px;height:50px;font-size:40px}.anchors{font-size:14px;justify-content:flex-start}.anchors b{flex:1 1 42%}.panel{padding:20px}.workspace{gap:20px}.vocab-grid,.sound-grid,.storygrid,.characters,.grid3,.grid4{grid-template-columns:1fr}.sectionhead h1,h1{font-size:54px}.lessonbody h2,h2{font-size:42px}.path{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.path .level{padding:15px}.path .level strong{font-size:37px}.path .level small{font-size:16px}.sound-letter{font-size:51px}.welcome{padding:24px}.lessonlist button{width:100%;font-size:19px}.lessonlist{max-height:270px}.flashcard{padding:20px}.prompt h2{font-size:45px}.ratings{gap:8px}.ratings button{font-size:19px}.choices{grid-template-columns:1fr}.memory-visual figcaption{font-size:19px}.memory-visual svg{height:155px}.storyscene img{height:240px}nav{justify-content:flex-start}nav button{padding:9px 12px;font-size:19px}.subnav button{font-size:19px}.subnav{gap:14px}#toast{bottom:12px;left:12px;right:12px;font-size:19px}.brand>span:last-child{min-width:0}.example{gap:8px}.example>div{min-width:0}.chunk{font-size:27px}.audio-box{padding:15px}.inset{padding:18px}.small,small{font-size:19px}.tag{font-size:16px}.row{align-items:stretch}.row .answerbox{flex-basis:100%}}#recorded-player{position:fixed;bottom:16px;left:50%;transform:translate(-50%);z-index:90;width:min(680px,calc(100% - 24px));background:#111d32f5;border:1px solid #38bdf877;border-radius:18px;padding:16px 20px;box-shadow:0 10px 45px #0009;backdrop-filter:blur(14px)}#recorded-player[hidden]{display:none}#recorded-player .between{flex-wrap:nowrap;align-items:flex-start}#recorded-player .between>div{min-width:0}#recorded-label{display:block;font-size:20px;max-height:65px;overflow:auto;margin-top:3px;line-height:1.45}#recorded-player small,#recorded-status{font-size:14px;line-height:1.4}#recorded-player audio{display:block;width:100%;height:38px;margin:10px 0 4px}#recorded-close{padding:8px 12px;flex-shrink:0;min-height:44px}.audio-open main{padding-bottom:240px}.audio-open #toast{bottom:230px}.answer-listen{display:inline-flex;align-items:center;gap:8px;margin-top:10px}@media(max-width:700px){#recorded-player{bottom:10px;padding:12px 14px}#recorded-label{font-size:18px}}.lesson-info-chunk{background:#111d32;border:1px solid rgba(255,255,255,.12);border-left:4px solid #38bdf8;border-radius:14px;padding:22px 26px;margin:20px 0;display:flex;flex-direction:column;gap:16px}.lesson-info-chunk .rule-header{display:flex;flex-direction:column;gap:8px}.lesson-info-chunk .rule-text{font-size:21px;line-height:1.55;font-weight:500;color:#f8fafc}.lesson-tips-container{display:flex;flex-direction:column;gap:12px;border-top:1px solid rgba(255,255,255,.08);padding-top:14px}.lesson-tip{display:flex;align-items:flex-start;gap:12px;background:#ffffff09;border-radius:10px;padding:12px 16px;font-size:18px;line-height:1.5;color:#cbd5e1}.tip-badge{display:inline-flex;align-items:center;background:#38bdf82e;color:#38bdf8;font-size:13px;font-weight:700;letter-spacing:.05em;padding:3px 8px;border-radius:6px;white-space:nowrap;flex-shrink:0;margin-top:2px}.tip-body{flex:1}.verb-highlight{font-weight:700;padding:1px 6px;border-radius:5px;display:inline-block;line-height:1.25}.verb-highlight.present{color:#34d399;background:#34d39929;border:1px solid rgba(52,211,153,.28)}.verb-highlight.past{color:#fbbf24;background:#fbbf2429;border:1px solid rgba(251,191,36,.28)}.verb-highlight.future{color:#38bdf8;background:#38bdf829;border:1px solid rgba(56,189,248,.28)}.verb-highlight.conditional{color:#c084fc;background:#c084fc29;border:1px solid rgba(192,132,252,.28)}.verb-highlight.subjunctive{color:#2dd4bf;background:#2dd4bf29;border:1px solid rgba(45,212,191,.28)}.es-chunk{font-style:italic;font-weight:600;color:#fff}.lessonlist button.lesson-sub{margin-left:14px;width:calc(100% - 14px);border-left:3px solid rgba(192,132,252,.45);background:#c084fc0a}.lessonlist button.lesson-sub span{background:#c084fc1a;color:#c084fc;font-size:14px;font-weight:600}.lessonlist button.lesson-parent span{font-size:17px;font-weight:700}.lesson-btn-label{display:flex;flex-direction:column;text-align:left;gap:2px}.next-journey-card{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:14px;background:linear-gradient(135deg,#38bdf814,#c084fc14);border:1px solid rgba(56,189,248,.25);border-radius:12px;padding:18px 22px}.skill-companion-details{margin-top:20px}.skill-companion-details summary{cursor:pointer;user-select:none}.mini-flashcard{height:570px;max-width:620px;box-sizing:border-box;margin:20px auto;border:1px solid #33465f;border-radius:22px;padding:26px 28px;background:linear-gradient(130deg,#15243a,#101a2e);display:flex;flex-direction:column;justify-content:space-between;cursor:pointer;user-select:none;transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;box-shadow:0 10px 35px #00000059;perspective:1000px;overflow:hidden}.mini-flashcard:hover{border-color:#38bdf8;transform:translateY(-2px);box-shadow:0 14px 40px #00000073}.mini-flashcard:active{transform:scale(.985)}.mini-flashcard.revealed{animation:turn .4s ease-out;border-color:#34d399;background:linear-gradient(130deg,#0e2925,#0b1426)}.mini-flashcard-front,.mini-flashcard-back{display:flex;flex-direction:column;height:100%;justify-content:space-between}.mini-tags-row{display:flex;justify-content:space-between;align-items:center;width:100%;margin-bottom:12px;flex-shrink:0}.mini-visual-slot{flex-shrink:0;margin-bottom:4px}.mini-visual-slot .memory-visual{margin:0 auto;max-width:280px;padding:6px 12px;background:#00000038;border:1px solid rgba(255,255,255,.08);border-radius:14px}.mini-visual-slot .memory-visual svg{height:110px;width:auto;margin:0 auto}.mini-visual-slot .memory-visual figcaption{display:none!important}.mini-content-slot{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;min-height:0;padding:2px 0;gap:2px}.mini-target-heading{font-size:38px;margin:2px 0;line-height:1.15}.mini-revealed-row{display:flex;align-items:center;justify-content:center;gap:10px;margin:2px 0}.mini-sub-translation{font-size:19px;margin:1px 0 4px;text-align:center}.mini-card-sentence{margin-top:4px;padding:8px 12px;background:#ffffff0a;border:1px solid rgba(255,255,255,.09);border-radius:12px;text-align:center;width:100%;box-sizing:border-box}.mini-card-sentence .present{font-size:18px;font-weight:600;margin:2px 0;display:flex;align-items:center;justify-content:center;gap:8px}.mini-card-sentence .small{margin:1px 0 0;font-size:15px;color:#94a3b8}.mini-flip-hint{margin:auto 0 0;text-align:center;padding-top:4px;flex-shrink:0}.es-term{color:#fb923c;background:#fb923c21;border:1px solid rgba(251,146,60,.28);border-radius:6px;padding:1px 7px;font-weight:600;display:inline-block;line-height:1.25}.primary,.greenbtn,#miniNext,#practiceLesson,#gotoNextJourney,#saveVocab,#skillLearnWords,#openStoryLesson{position:relative;overflow:hidden;isolation:isolate;border:none;outline:none;background:transparent;color:#fff!important;font-weight:700;letter-spacing:.03em;padding:14px 28px;border-radius:14px;cursor:pointer;user-select:none;display:inline-flex;align-items:center;justify-content:center;gap:10px;box-shadow:0 6px 20px #34d39947,0 2px 6px #0006;transition:transform .25s cubic-bezier(.16,1,.3,1),box-shadow .25s cubic-bezier(.16,1,.3,1);text-shadow:0 1px 2px rgba(0,0,0,.6)}.primary:before,.greenbtn:before,#miniNext:before,#practiceLesson:before,#gotoNextJourney:before,#saveVocab:before,#skillLearnWords:before,#openStoryLesson:before{content:"";position:absolute;top:50%;left:50%;width:250%;height:250%;background:conic-gradient(from 0deg,transparent 0deg,transparent 280deg,#34d399 320deg,#38bdf8 345deg,#c084fc 360deg);transform:translate(-50%,-50%) rotate(0);z-index:-2;opacity:.65;transition:opacity .3s ease;animation:borderSpin 4s linear infinite}.primary:after,.greenbtn:after,#miniNext:after,#practiceLesson:after,#gotoNextJourney:after,#saveVocab:after,#skillLearnWords:after,#openStoryLesson:after{content:"";position:absolute;inset:2px;border-radius:12px;background:linear-gradient(135deg,#104b3ae0,#112d4ee0,#281441e0);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);z-index:-1;box-shadow:inset 0 1px 1px #ffffff73,inset 0 -1px 2px #00000080,inset 0 0 12px #34d39933;transition:background .3s ease,box-shadow .3s ease}.primary:hover,.greenbtn:hover,#miniNext:hover,#practiceLesson:hover,#gotoNextJourney:hover,#saveVocab:hover,#skillLearnWords:hover,#openStoryLesson:hover{transform:translateY(-2px) scale(1.02);box-shadow:0 10px 30px #34d39973,0 0 20px #38bdf859}.primary:hover:before,.greenbtn:hover:before,#miniNext:hover:before,#practiceLesson:hover:before,#gotoNextJourney:hover:before,#saveVocab:hover:before,#skillLearnWords:hover:before,#openStoryLesson:hover:before{opacity:1;animation-duration:2s}.primary:hover:after,.greenbtn:hover:after,#miniNext:hover:after,#practiceLesson:hover:after,#gotoNextJourney:hover:after,#saveVocab:hover:after,#skillLearnWords:hover:after,#openStoryLesson:hover:after{background:linear-gradient(135deg,#16654eeb,#18406eeb,#3a1d5eeb);box-shadow:inset 0 1px 2px #ffffffb3,inset 0 -1px 2px #00000080,inset 0 0 18px #38bdf859}.primary:active,.greenbtn:active,#miniNext:active,#practiceLesson:active,#gotoNextJourney:active,#saveVocab:active,#skillLearnWords:active,#openStoryLesson:active{transform:translateY(0) scale(.97)}.primary:disabled,.greenbtn:disabled,#miniNext:disabled{opacity:.5;cursor:not-allowed;transform:none!important;box-shadow:none!important}.primary:disabled:before,.greenbtn:disabled:before,#miniNext:disabled:before{animation:none;opacity:0}@keyframes borderSpin{0%{transform:translate(-50%,-50%) rotate(0)}to{transform:translate(-50%,-50%) rotate(360deg)}}.matrix-toolbar{display:flex;gap:14px;align-items:center;flex-wrap:wrap;background:#111d32;border:1px solid #334965;border-radius:14px;padding:16px 20px;margin-bottom:20px}.matrix-toolbar select{background:#0b1426;color:#f8fafc;border:1px solid #38bdf866;border-radius:10px;padding:10px 16px;font-size:18px;min-width:280px;cursor:pointer}.matrix-toolbar .active-filter-badge{display:inline-flex;align-items:center;gap:8px;background:#34d39926;border:1px solid rgba(52,211,153,.35);color:#34d399;border-radius:8px;padding:6px 12px;font-size:16px}.matrix-tense-carousel{background:#111d32;border:1px solid #34435d;border-radius:16px;padding:24px;margin-bottom:24px}.matrix-tense-carousel summary{cursor:pointer;user-select:none;outline:none}.matrix-tense-carousel summary h3{display:inline-block;vertical-align:middle}.matrix-carousel-tabs{display:flex;gap:10px;flex-wrap:wrap;margin:18px 0}.matrix-carousel-tab{background:#ffffff0d;border:1px solid rgba(255,255,255,.12);color:#cbd5e1;border-radius:10px;padding:10px 18px;font-size:17px;font-weight:700;cursor:pointer;transition:all .2s ease}.matrix-carousel-tab.active{color:#fff;box-shadow:0 4px 14px #00000059}.matrix-carousel-slide{background:#0b1426b3;border:1px solid rgba(255,255,255,.08);border-radius:14px;padding:22px;margin-top:14px}.matrix-carousel-slide h4{margin:0 0 12px;font-size:24px;display:flex;align-items:center;gap:12px}.matrix-formula-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin:16px 0}.matrix-formula-box{background:#ffffff08;border:1px solid rgba(255,255,255,.08);border-radius:10px;padding:14px}.matrix-formula-box strong{display:block;margin-bottom:6px;font-size:16px}.matrix-carousel-controls{display:flex;justify-content:space-between;align-items:center;margin-top:18px}@media(max-width:850px){.matrix-formula-grid{grid-template-columns:1fr}}@font-face{font-family:Atkinson Hyperlegible;font-style:normal;font-weight:400;font-display:swap;src:url(./atkinson-hyperlegible-400-DGIATLyP.woff2) format("woff2")}@font-face{font-family:Atkinson Hyperlegible;font-style:normal;font-weight:700;font-display:swap;src:url(./atkinson-hyperlegible-700-BuSDRgJU.woff2) format("woff2")}@font-face{font-family:"Source Serif 4";font-style:normal;font-weight:600;font-display:swap;src:url(./source-serif-4-600-Bmbv_i08.woff2) format("woff2")}@font-face{font-family:"Source Serif 4";font-style:normal;font-weight:700;font-display:swap;src:url(./source-serif-4-700-C_NpxmCX.woff2) format("woff2")}body{font-family:Atkinson Hyperlegible,Segoe UI,sans-serif;font-size:22px;line-height:1.6}h1,h2,h3,.lessonbody h2{font-family:"Source Serif 4",Georgia,serif;font-weight:600;letter-spacing:-.025em}h1,.sectionhead h1{font-size:clamp(30px,3.2vw,44px);line-height:1.18;max-width:26ch}h2,.lessonbody h2{font-size:clamp(27px,2.5vw,34px);line-height:1.25}h3{font-size:26px}.welcome h2{font-size:42px}.prompt h2{font-family:Atkinson Hyperlegible,sans-serif;font-size:clamp(29px,3vw,40px);letter-spacing:0}.mono{font-family:Atkinson Hyperlegible,sans-serif;font-variant-numeric:tabular-nums}.brand{font-family:Atkinson Hyperlegible,sans-serif;font-size:27px;line-height:1.1;gap:11px;letter-spacing:-.6px}.brand small{font-size:10px;letter-spacing:1.2px;margin-top:6px}.logo{width:43px;height:43px;font-size:30px;border-radius:12px}.top{padding:14px 28px;gap:18px;flex-wrap:nowrap}nav{order:initial;width:auto;flex:1;justify-content:center;gap:5px}nav button{font-size:17px;line-height:1.2;padding:10px 12px;min-height:44px;font-weight:700}.icon{min-width:44px;min-height:44px}.anchors{font-size:14px;padding:9px 24px;gap:10px 24px}.anchors>span{font-size:12px}.subnav{gap:12px;margin-bottom:25px}.subnav button{font-size:18px;min-height:44px;padding:10px 14px}.sectionhead{margin-bottom:24px}.sectionhead p{font-size:19px;max-width:68ch}.sectionhead #auditButton{font-size:16px;min-height:44px}.path{grid-template-columns:repeat(7,minmax(0,1fr));gap:10px}.path .level{padding:12px 10px}.path .level strong{font-size:26px}.path .level small{font-size:15px;line-height:1.3}.workspace{grid-template-columns:280px minmax(0,1fr)}.lessonlist button{font-size:18px}.lesson-picker{margin:0;border:0;padding:0}.lesson-picker>summary{font-size:17px;padding:13px 16px;background:#17243b;border:1px solid #344965;border-radius:12px;margin-bottom:10px}.lesson-picker[open]>summary{margin-bottom:14px}.lesson-picker .lessonlist{margin:0}.lessonbody p,.lessonbody .rule{max-width:70ch}.lessonbody h3{font-family:Atkinson Hyperlegible,sans-serif;font-size:23px}.eyebrow{font-size:13px;letter-spacing:1.6px}.welcome{padding:30px}.welcome p{max-width:68ch}.lesson-scene{overflow:hidden;margin:0;border:1px solid #344965;border-radius:18px;background:#101c30}.lesson-scene img{display:block;width:100%;height:auto;max-height:510px;object-fit:contain;background:#111d32}.lesson-scene figcaption{padding:18px 22px;font-size:18px;line-height:1.5}.lesson-scene figcaption strong{display:block;font-size:12px;letter-spacing:1.4px;color:#a5b4fc;margin-bottom:7px}.lesson-scene figcaption p{margin:0 0 6px}.lesson-scene figcaption small{font-size:16px;color:#a9b9d0}.lesson-scene--top{margin-top:18px;margin-bottom:22px}.verb-cue{display:flex;gap:20px;align-items:center;padding:20px 0}.verb-cue .memory-visual{max-width:310px;margin:0}.memory-visual figcaption span{font-size:15px;color:#a9b9d0;line-height:1.45}.memory-visual figcaption{font-size:18px}.memory-visual svg{height:160px}.art-status{font-size:16px;line-height:1.6}.skip-link{position:absolute;left:12px;top:-90px;z-index:150;padding:10px 18px;background:#111d32;color:#fff;border:2px solid #38bdf8;border-radius:8px}.skip-link:focus{top:10px}input:focus-visible,textarea:focus-visible,select:focus-visible{outline:2px solid #38bdf8;outline-offset:3px}.primary,.primary:hover{background:linear-gradient(110deg,#4f46c8,#075f90)}@media(max-width:1200px){.top{flex-wrap:wrap}nav{order:3;width:100%;flex-basis:100%}.workspace{grid-template-columns:1fr}.workspace>aside{position:static;max-height:none}.lesson-picker .lessonlist{max-height:270px;overflow:auto}.lesson-picker:not([open])+.inset{display:none}}@media(max-width:700px){.top{padding:12px;gap:12px}.brand{font-size:26px}.brand small{font-size:9px}.logo{width:40px;height:40px;font-size:29px}nav{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:5px}nav button{font-size:15px;padding:7px 5px;min-height:44px;line-height:1.2}nav .tag{font-size:12px;padding:1px 5px}.anchors{padding:8px 12px;gap:5px 10px;font-size:12px}.anchors>span{display:none}.anchors b{flex:1 1 45%}.subnav{gap:6px;margin-bottom:22px}.subnav button{font-size:16px;flex:1 1 28%;padding:8px 4px;line-height:1.25}.sectionhead{gap:8px;margin-bottom:18px}.sectionhead p{font-size:17px}.sectionhead h1{font-size:32px}.path{grid-template-columns:repeat(4,minmax(0,1fr));gap:7px;margin-bottom:18px}.path .level{padding:9px 5px}.path .level strong{font-size:23px}.path .level small{font-size:13px;line-height:1.2}.panel{padding:19px}.lesson-picker>summary{font-size:16px}.lessonbody h2{font-size:28px}.lessonbody h3{font-size:21px}.welcome h2{font-size:36px}.welcome{padding:22px}.lesson-scene figcaption{padding:14px 16px;font-size:17px}.lesson-scene figcaption small{font-size:15px}.lesson-scene img{max-height:none}.verb-cue{display:block}.verb-cue .memory-visual{max-width:100%}h3{font-size:25px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation:none!important;transition:none!important;scroll-behavior:auto!important}button:hover{transform:none}}.path .level{line-height:1.25}.path .level small{display:block;margin-top:5px}.research-link{font-size:16px;line-height:1.5;padding:10px 0}.welcome h2{background:linear-gradient(90deg,#34d399,#38bdf8,#c084fc);color:transparent;background-clip:text}#settingsBtn{width:46px;height:46px;padding:5px;font-size:25px}@media(max-width:700px){nav .tag{display:none}.path .level small{font-size:0;line-height:0}.path .level small:after{content:attr(data-short);font-size:14px;line-height:1.3}.path .level{min-height:68px}.sectionhead p{margin-bottom:4px}.sectionhead{margin-bottom:12px}}nav button.active{background:linear-gradient(100deg,#4f46c8,#075f90);color:#fff}.skill-unit-header{margin-bottom:22px}.skill-unit-header select{display:block;width:100%;margin:8px 0 20px;padding:12px;font-size:20px}.skill-unit-header h2{margin-top:16px}.skill-rules{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:20px 0 28px}.skill-rules h3{margin-top:12px}.skill-rules p{font-size:20px}.skill-grammar-form{margin:18px 0}.skill-grammar-form label{display:block;margin:14px 0 10px}.skill-feedback p{margin-top:12px}.skill-forms{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin:15px 0 22px}.skill-forms p{margin:0}.skill-passage{font-family:Atkinson Hyperlegible,sans-serif;font-size:22px;line-height:1.8;letter-spacing:0;max-width:70ch;background:#0b1426;border-left:3px solid #38bdf8;padding:20px 24px;margin:20px 0;white-space:normal}.skill-question{min-width:0;margin:24px 0;padding:18px}.skill-question legend{max-width:100%;padding:0 8px;font-size:22px;font-weight:700}.skill-option{display:flex;gap:13px;align-items:flex-start;padding:12px;border-radius:10px;cursor:pointer;line-height:1.5}.skill-option:hover{background:#1c2940}.skill-option input{width:22px;height:22px;flex:0 0 22px;margin:5px 0 0;accent-color:#38bdf8}.skill-option:focus-within{outline:2px solid #38bdf8;outline-offset:2px}.skill-q-feedback{margin:12px 0 0}.skill-q-feedback p{margin:6px 0}.skill-paradigms{margin-top:24px}#skillTranscript{margin:18px 0}#skillProgressPanel{margin-top:24px}#skillRetryChallenge{margin-top:18px}@media(max-width:700px){.skill-rules{grid-template-columns:1fr}.skill-rules p{font-size:20px}.skill-forms{grid-template-columns:repeat(2,minmax(0,1fr))}.skill-passage{padding:16px;font-size:21px}.skill-question{padding:12px}.skill-option{padding:10px 4px;gap:10px}.skill-question legend{font-size:20px}.skill-unit-header select{font-size:18px}.skill-forms .inset{padding:12px}.skill-forms .listen{min-width:44px;min-height:44px}.subnav button{flex-basis:40%}}.dedicated-visual svg{height:auto;max-height:260px;width:100%}.support-patterns{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.support-pattern{color:#a7f3d0;line-height:1.7}.support-pattern span{display:inline-block}.support-patterns article:nth-child(2) .support-pattern{color:#c4b5fd}.support-glossary{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.support-glossary div{padding:14px;border:1px solid #344965;border-radius:12px}.support-glossary dt{font-weight:700;color:#7dd3fc}.support-glossary dd{margin:6px 0 0}.exercise-meaning{padding:12px 16px;border-left:3px solid #38bdf8;background:#101c30}.lesson-support .small{font-size:18px}@media(max-width:700px){.support-patterns,.support-glossary{grid-template-columns:1fr}.dedicated-visual{padding:12px}.dedicated-visual svg{max-height:none}}.support-pattern .muted{padding:0 .35em}.jw-integrated>article,.jw-integrated>aside{min-width:0}.jw-side-unit{margin-left:12px;border-left:2px solid #334155;padding-left:6px}.jw-side-parts{margin-left:8px;padding:4px 0 12px}.lessonlist .jw-side-parts button{display:block;font-size:16px;line-height:1.45;padding:9px 12px;width:100%;text-align:left}.jw-side-parts button[aria-pressed=true]{background:#23334b;color:#e2e8f0}.jw-integrated .sectionhead h1{overflow-wrap:anywhere}.jw-integrated .lessonlist button{white-space:normal}.jw-integrated [data-jwx-scene],#jwxDraft{scroll-margin-top:24px}#jwFlowNext{white-space:normal;text-align:left}.matrix-tense-controls button{white-space:normal}#matrixModes [aria-pressed=true]{background:#26364f;box-shadow:inset 0 -3px #94a3b8}.matrixwrap th[scope=row]{font-weight:400;text-align:left}.matrixwrap{max-width:100%}.matrixwrap:focus-visible{outline:3px solid #38bdf8;outline-offset:3px}#nextLesson{white-space:normal;text-align:left;max-width:100%}.lessonlist .jw-side-unit>button{font-size:16px;line-height:1.4;padding:10px}.lessonlist .jw-side-unit>button small{font-size:14px}.jw-side-parts button{font-weight:500}#matrixModes>.row>button{font-size:18px;padding:12px}#matrixModes{padding:18px}.matrix-tense-controls{margin:14px 0}.matrix-tense-controls button{font-size:16px}#matrixRules .skill-rules{margin-top:16px}#matrixModes>.row>button{font-size:16px;padding:10px 12px}.skill-stack>*{min-width:0;max-width:100%}.skill-stack textarea{width:100%;min-width:0;max-width:100%;box-sizing:border-box}#brPractice{display:grid;gap:18px;margin-top:20px}#brPractice label{display:block;margin:10px 0}#brPractice .row{flex-wrap:wrap}#brPractice input{min-width:0;max-width:100%}#brDraft,#brSelect{width:100%;box-sizing:border-box}#brReturn{margin-top:20px}textarea::placeholder,input::placeholder{color:var(--muted);opacity:1}button{transition:transform .18s cubic-bezier(.23,1,.32,1),background .15s ease,border-color .15s ease,box-shadow .15s ease,color .15s ease}button:active:not(:disabled),.tag:active,.level:active{transform:scale(.97);transition:transform 90ms cubic-bezier(.23,1,.32,1)}@keyframes vm-enter{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}@keyframes vm-audio-pulse{0%{transform:scale(1);box-shadow:0 0 #38bdf873}to{transform:scale(1.08);box-shadow:0 0 0 8px #38bdf800}}@media(prefers-reduced-motion:no-preference){.panel,.inset,.flashcard,.verbcard,.lesson-scene,.memory-visual,#exerciseArea .check,.stage{animation:vm-enter .22s cubic-bezier(.23,1,.32,1) both}.listen.is-playing{animation:vm-audio-pulse .75s ease-in-out infinite alternate!important;border-color:#38bdf8!important;color:#38bdf8!important;background:#11324d!important}}:root{--course-text: #e8edf5;--course-secondary: #b0bfd2;--course-surface: #142034;--course-border: #304058;--course-action: #34d399}::selection{background:#34d39942;color:#f8fafc}html{scrollbar-color:#465872 #0f172a}#nav{display:flex;flex-wrap:nowrap;gap:2px}#nav button{white-space:nowrap;font-size:14px;padding:11px 12px}#nav button.active{background:#183e3c;color:#a0f5d8;border-color:#287d68;box-shadow:none}.course-nav-count{display:inline-block;margin-left:6px;color:#a0f5d8;font-size:12px;font-variant-numeric:tabular-nums}body:has(.course-root) .anchors{display:none}.course-root{max-width:1180px;margin:0 auto;padding:42px 28px 64px;color:var(--course-text);font-size:17px;line-height:1.65}.course-root *{min-width:0}.course-root h1,.course-progress h1{font-family:inherit;font-size:34px;line-height:1.25;letter-spacing:-.025em;font-weight:750}.course-root h2{font-family:inherit;font-size:25px;line-height:1.4;letter-spacing:-.015em}.course-root h3{font-family:inherit;font-size:20px}.course-root button,.course-progress button{font-size:15px;line-height:1.4;font-weight:650;border-radius:10px}.course-root button:hover{transform:none}.course-root button:active{transform:translateY(1px)}.course-root button:focus-visible,.course-root input:focus-visible,.course-root textarea:focus-visible,.course-root summary:focus-visible{outline:2px solid var(--sky);outline-offset:4px}.course-root h1:focus,.course-root h2:focus{outline:none}.course-root p{max-width:68ch}.course-heading{margin-bottom:28px}.course-heading p,.course-muted{color:var(--course-secondary);font-size:14px}.course-heading p{font-size:17px}.course-primary{display:inline-flex;align-items:center;justify-content:center;gap:20px;min-height:46px;padding:13px 22px;color:#062e25;background:var(--course-action);border:1px solid transparent;box-shadow:none;white-space:nowrap}.course-primary:hover{background:#65e4bd;color:#062e25;border-color:transparent}.course-primary:disabled{background:#29394d;color:#b5c3d4;opacity:1;cursor:not-allowed}.course-text-button{background:transparent;border:1px solid transparent;color:var(--course-secondary);padding:9px 10px;min-height:44px}.course-text-button:hover{color:#f8fafc;background:#1b2a41}.course-root [data-authored-aloud]{border-color:var(--course-secondary);text-align:left}.course-resume{display:grid;grid-template-columns:1.25fr 1fr;overflow:hidden;background:var(--course-surface);border:1px solid var(--course-border);border-radius:16px;margin-bottom:42px}.course-resume-copy{padding:32px;align-self:center;min-width:0}.course-resume-copy>.course-primary{max-width:100%;white-space:normal;flex-wrap:wrap;column-gap:12px}.course-resume h2{font-size:28px;margin-top:12px}.course-resume-copy>p{color:var(--course-secondary);margin-bottom:22px}.course-resume-copy>.course-muted{display:block;margin-top:14px;font-variant-numeric:tabular-nums}.course-resume>img{display:block;width:100%;height:100%;min-height:260px;max-height:360px;object-fit:cover}.course-level{display:inline-flex;align-items:center;justify-content:center;min-width:38px;min-height:32px;border:1px solid #397b6a;border-radius:7px;color:#8de8c6;background:#123831;font-size:14px;font-weight:750}.course-map-heading{display:flex;align-items:baseline;justify-content:space-between;margin:0 0 12px}.course-map-heading h2{font-size:22px}.course-levels{border-top:1px solid var(--course-border)}.course-level-group{margin:0;padding:0;background:none;border:0;border-bottom:1px solid var(--course-border);border-radius:0}.course-level-group>summary{display:flex;align-items:center;gap:16px;padding:20px 4px;font-size:18px;font-weight:650;cursor:pointer;list-style:none}.course-level-group>summary:after{content:"+";color:var(--course-secondary);font-size:22px;margin-left:8px}.course-level-group[open]>summary:after{content:"−"}.course-level-group>summary>.course-muted{margin-left:auto;font-weight:400}.course-unit-list{list-style:none;padding:0 0 16px 50px;margin:0;display:grid;gap:4px}.course-unit{display:flex;align-items:center;width:100%;gap:16px;text-align:left;padding:14px 16px;border:1px solid transparent;background:transparent}.course-unit.is-current{background:#192e3c;border-color:#34556a}.course-unit-marker{display:grid;place-items:center;flex:0 0 32px;height:32px;border:1px solid #3d516a;border-radius:50%;font-size:13px;color:#c9d5e4}.course-unit-copy{display:grid;gap:3px}.course-unit-copy strong{font-size:16px;font-weight:600}.course-unit-copy>span{font-size:13px;color:var(--course-secondary);font-weight:400}.course-unit-count{margin-left:auto;color:var(--course-secondary);font-size:13px;font-variant-numeric:tabular-nums;flex-shrink:0;white-space:nowrap}.course-footnote{color:var(--course-secondary);font-size:14px;margin-top:22px}.course-session-top{display:flex;gap:16px;align-items:center;padding-bottom:22px;color:var(--course-secondary);font-size:14px}.course-session-top>span{flex:1}.course-workspace{display:grid;grid-template-columns:230px minmax(0,1fr);gap:32px;align-items:start}.course-sidebar{position:sticky;top:20px;font-size:14px}.course-sidebar details{background:none;border:0;padding:0;margin:0}.course-sidebar summary{font-size:14px;color:var(--course-secondary);margin-bottom:14px}.course-sidebar h2{font-size:16px;line-height:1.5;margin-bottom:14px}.course-sidebar ol{margin:0;padding:0;list-style:none;max-height:66vh;overflow-y:auto;scrollbar-width:thin}.course-sidebar li{margin:0}.course-sidebar button{width:100%;display:flex;align-items:baseline;gap:10px;padding:11px 10px;color:var(--course-secondary);text-align:left;background:transparent;border:1px solid transparent;border-radius:8px;font-size:13px;font-weight:500}.course-sidebar button.is-active{color:#9aecd0;background:#14372f;border-color:#2c6453}.course-sidebar small{display:block;font-size:11px;line-height:1.5;margin-top:4px;opacity:.85}.course-lesson{background:var(--course-surface);border:1px solid var(--course-border);border-radius:16px;padding:28px}.course-lesson-meta{display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:12px;color:var(--course-secondary);margin-bottom:26px}.course-lesson-meta>span:last-child{flex-shrink:0;white-space:nowrap;font-variant-numeric:tabular-nums}.course-activity{min-height:270px}.course-activity h2{white-space:pre-line;margin:0 0 20px}.course-scene{margin:0 0 26px;overflow:hidden;border-radius:12px}.course-scene img{display:block;width:100%;height:auto;max-height:350px;object-fit:contain;background:#111a2a}.course-prose{font-size:17px;line-height:1.8;white-space:pre-line}.course-spanish{font-size:29px!important;line-height:1.6!important;margin-top:18px!important}.course-translation{font-size:16px;color:var(--course-secondary);margin:16px 0}.course-note{color:var(--course-secondary);margin-top:20px}.course-memory-cue{margin-top:22px;padding:0 0 0 16px;border-left:2px solid var(--course-border);color:var(--course-text);font-size:16px;line-height:1.7}.course-memory-cue p{margin:0}.course-memory-cue .course-memory-cue-label{color:var(--course-secondary);font-size:13px;font-weight:700;margin-bottom:6px}.course-chunk-1{color:#f9d67b}.course-chunk-0{color:#86d6f7}.course-audio{min-height:44px;color:#9edcff;background:#172f47;border:1px solid #365a76;padding:10px 18px}.course-visual{max-width:400px;margin:0 auto 24px}.course-visual figure{margin:0;background:none;padding:0;border:0;box-shadow:none}.course-visual .memory-visual{animation:none;opacity:1;transform:none}.course-visual svg{display:block;width:100%;height:auto;max-height:290px;overflow:visible}.course-visual figcaption{display:none}.course-help{padding:12px 0;margin:16px 0;border:0;border-top:1px solid var(--course-border);border-radius:0;background:none}.course-help summary{color:#9edcff;cursor:pointer;font-size:14px;min-height:30px}.course-help[open]>div,.course-help[open]>p{margin-top:14px;font-size:15px}.course-options{display:grid;gap:10px;margin:20px 0;padding:0;border:0}.course-option{display:flex;align-items:baseline;gap:14px;width:100%;padding:14px 16px;border:1px solid #435570;border-radius:10px;cursor:pointer;font-size:17px;line-height:1.6}.course-option:has(input:checked){background:#183b36;border-color:#4cba99}.course-option input,.course-selfcheck input{accent-color:#34d399;flex:0 0 auto;width:18px;height:18px}.course-input-label{display:block;font-size:14px;color:var(--course-secondary);margin-bottom:8px}.course-input,.course-root textarea{display:block;width:100%;border:1px solid #516780;background:#0c1728;color:#eff5fa;padding:14px 16px;border-radius:10px;font-size:18px;caret-color:#86d6f7;margin-bottom:20px;resize:vertical}.course-input::placeholder,.course-root textarea::placeholder{color:#a5b4c8}.course-input:disabled{opacity:.8}.course-root .authored-written-answer{field-sizing:content;min-height:3.5em;overflow-wrap:anywhere}.course-controls{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px;border-top:1px solid var(--course-border);margin-top:32px;padding-top:22px}.course-controls button{flex-shrink:0;max-width:100%;overflow-wrap:normal}.course-controls .course-primary{flex-wrap:wrap;column-gap:12px}.course-session-top>button{flex-shrink:0;overflow-wrap:normal}.course-feedback:not(:empty){margin-top:24px;padding:18px;border-radius:10px;background:#0c3029}.course-feedback.needs-practice{background:#343025}.course-feedback p{margin:8px 0 0;font-size:15px}.course-rubric{padding-left:22px;font-size:15px;color:var(--course-secondary);margin:18px 0 24px}.course-rubric li+li{margin-top:8px}.course-selfcheck{display:flex;align-items:baseline;gap:12px;font-size:14px}.course-reference{border-top:1px solid var(--course-border);margin-top:28px;padding-top:26px}.course-reference>div+div{margin-top:24px}.course-reference p{font-size:15px}.course-progress{max-width:1100px;margin:20px auto 40px;font-size:17px}.course-progress h2{font-family:inherit;font-size:24px;margin-top:32px}.course-progress-metrics{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:28px;padding:28px 0;border-block:1px solid var(--course-border);margin:28px 0}.course-progress-metrics dt{font-size:14px;color:var(--course-secondary)}.course-progress-metrics dd{margin:8px 0 0;font-size:32px;font-variant-numeric:tabular-nums}.course-progress-metrics small{font-size:14px;color:var(--course-secondary)}.course-progress>.course-muted{margin-top:18px}.course-saved-draft{white-space:pre-wrap;overflow-wrap:anywhere}.course-legacy-details{margin-top:40px}.course-journal{max-width:1100px;margin:0 auto;animation:none;opacity:1;transform:none}.course-journal h3{font-family:inherit;font-size:22px}.course-journal textarea{width:100%}.course-accents{display:flex;flex-wrap:wrap;gap:6px;margin:8px 0 18px}.course-accents button{min-width:36px;min-height:38px;padding:5px 10px;font-size:17px}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}@media(max-width:1200px){.top{flex-wrap:wrap}#nav{flex:1 1 100%;order:3;overflow-x:auto;justify-content:flex-start}#nav button{flex-shrink:0}}@media(max-width:899px){.course-workspace{grid-template-columns:1fr;gap:18px}.course-sidebar{position:static}.course-sidebar details[open] ol{max-height:240px}.course-sidebar h2{display:none}.course-root{padding-top:28px}}@media(max-width:600px){.course-root{padding:24px 16px 40px}.course-root h1,.course-progress h1{font-size:27px}.course-root h2{font-size:22px}.course-resume{grid-template-columns:1fr;margin-bottom:30px}.course-resume-copy{padding:24px;order:2}.course-resume>img{min-height:0;height:180px;object-fit:cover}.course-resume h2{font-size:24px}.course-unit-list{padding-left:0}.course-unit{padding:14px 6px;gap:12px}.course-level-group>summary{gap:10px;font-size:15px}.course-level-group>summary>.course-muted{font-size:12px}.course-lesson{padding:20px 16px}.course-session-top{flex-wrap:wrap;gap:6px;font-size:12px;padding-bottom:14px}.course-session-top>span{flex-basis:calc(100% - 100px)}.course-session-top>button:last-child{margin-left:auto}.course-lesson-meta{font-size:11px;margin-bottom:20px}.course-spanish{font-size:25px!important}.course-option{font-size:16px;padding:12px}.course-progress-metrics{grid-template-columns:1fr 1fr;gap:22px}.course-visual svg{max-height:240px}#nav{border-radius:0}}@media(prefers-reduced-motion:reduce){.course-root *,.course-root *:before,.course-root *:after{transition:none!important;animation:none!important;scroll-behavior:auto!important}}.course-question .course-scene{max-width:560px;margin:20px auto 24px}.course-question .course-scene img{max-height:240px}.authored-model{margin:24px 0}.authored-spanish{font-size:25px;line-height:1.6;margin-bottom:8px}.authored-model [data-mapping],#authored-title strong[lang=es]{text-decoration:underline;text-decoration-color:#86d6f7;text-decoration-thickness:1px;text-underline-offset:5px}.authored-vowels{list-style:none;padding:0;display:grid;gap:18px;margin:24px 0}.authored-vowels li{display:grid;grid-template-columns:60px 1fr;align-items:start;gap:18px}.authored-vowels p{margin:6px 0;font-size:15px}.authored-vowels button{width:100%;font-size:22px}.authored-alphabet{list-style:none;padding:0;display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,12rem),1fr));gap:12px;margin:24px 0}.authored-alphabet li{display:flex;flex-direction:column;align-items:flex-start;gap:10px;padding:12px;border:1px solid var(--course-border);border-radius:10px;min-width:0}.authored-alphabet button{max-width:100%;white-space:normal;overflow-wrap:anywhere}.authored-letter-sequence{list-style:none;padding:0;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin:24px 0}.authored-letter-sequence li{display:flex;flex-direction:column;gap:8px;text-align:center;padding:12px 4px;border:1px solid var(--course-border);border-radius:10px;overflow-wrap:anywhere}.authored-letter-sequence strong{font-size:1.5em}.authored-conversation{list-style:none;padding:0;margin:20px 0}.authored-conversation li{padding:16px 0;border-bottom:1px solid var(--course-border)}.authored-conversation p{margin:8px 0;overflow-wrap:anywhere}.authored-notice{margin-bottom:24px;padding-bottom:16px;border-bottom:1px solid var(--course-border)}.course-root [data-authored-answer] button,.course-controls button{white-space:normal}.course-root [data-authored-audio]:disabled{cursor:wait;opacity:.7}.course-feedback .course-audio{margin:14px 12px 0 0}.vocabulary-drill{max-width:880px;margin:0 auto;padding:24px 0}.vocabulary-drill h1{margin:28px 0 10px}.vocabulary-modes{display:flex;flex-wrap:wrap;gap:10px}.vocabulary-levels{border:0;padding:0;margin:26px 0}.vocabulary-levels legend{padding:0;margin-bottom:10px;font-weight:700}.vocabulary-levels>div{display:grid;grid-template-columns:repeat(6,1fr);gap:10px;max-width:460px}.vocabulary-levels button{min-width:64px;min-height:46px}.vocabulary-levels button[aria-pressed=true]{background:#183e3c;color:#a0f5d8;border-color:#287d68}.vocabulary-card{padding:32px;border:1px solid var(--course-border);border-radius:16px;background:var(--course-surface)}.vocabulary-position,.vocabulary-instruction{color:var(--course-secondary);font-size:15px}.vocabulary-card h2{margin:12px 0 26px;font-size:32px;overflow-wrap:anywhere}.vocabulary-answer{margin:26px 0}.vocabulary-answer h3{font-size:30px;margin-bottom:14px;overflow-wrap:anywhere}.vocabulary-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}.vocabulary-actions button{min-height:46px}.vocabulary-visual{max-width:340px;margin:22px auto 0}.vocabulary-visual svg{width:100%;max-height:240px}.vocabulary-visual figure{margin:0}:root{--bg: #15151e;--panel: #1d1d29;--line: #403e52;--muted: #c0bdcc;--course-text: #f1eef9;--course-secondary: #c0bdcc;--course-surface: #1d1d29;--course-border: #403e52}body{background:#15151e}html{scrollbar-color:#77708d #15151e}header{background:#1d1d29f5}nav,.anchors{background:#15151e;border-color:#403e52}dialog{background:#1d1d29;border-color:#514963}footer{color:#c0bdcc;border-color:#403e52}#app :is(.panel,.flashcard,.mini-card,.stage,.level,.verbcard,.storyscene,.lesson-scene,.course-resume,.course-lesson,.vocabulary-card){background:#1d1d29;border-color:#403e52}#app .hero{background:radial-gradient(ellipse at 25% 20%,#62518540,transparent 75%),#1d1d29;border-color:#514963}#app :is(.inset,.audio-box,.check){background:#181822;border-color:#403e52}#app .flashcard{border-color:var(--accent, #34d399)}#app .stage.active{background:color-mix(in srgb,var(--accent) 9%,#1d1d29);border-color:var(--accent)}#app .level.selected{background:#203b35;border-color:#428f78}#app .eyebrow{color:#c3b4eb}#app input:not([type=checkbox]):not([type=radio]):not([type=file]),#app textarea,#app select{background:#15151e;color:#f1eef9;border-color:#595469}#app input::placeholder,#app textarea::placeholder{color:#c0bdcc}#app :focus-visible{outline-color:#c3b4eb}#app .primary{background:#1593a8;color:#061f2a}#app .primary:hover{background:#53bbc7;color:#061f2a}#app .course-primary{background:#1593a8;color:#061f2a}#app .course-primary:hover{background:#53bbc7;color:#061f2a}#app .course-primary:disabled{background:#29394d;color:#b5c3d4}.vocabulary-visual figcaption{display:none}.vocabulary-drill :focus-visible{outline:2px solid #38bdf8;outline-offset:4px}.vocabulary-drill>.muted{font-size:17px;line-height:1.6}body:has(.vocabulary-drill) .anchors{display:none}@media(max-width:600px){.vocabulary-card{padding:22px}.vocabulary-card h2{font-size:27px}.vocabulary-answer h3{font-size:26px}.vocabulary-levels>div{grid-template-columns:repeat(3,1fr)}.vocabulary-modes{display:grid;grid-template-columns:1fr 1fr}.vocabulary-modes button{font-size:15px;min-height:46px}.vocabulary-modes [data-vocabulary-mode]{grid-column:1 / -1}}.vm-flashcard,.mini-flashcard.vm-flashcard,.flashcard.vm-flashcard{height:auto;min-height:0;min-width:0;max-width:100%;box-sizing:border-box;overflow:visible;display:flex;flex-direction:column;gap:20px;perspective:1200px;cursor:pointer;animation:none;transform:none;user-select:text}.mini-flashcard.vm-flashcard{width:100%;max-width:620px;padding:28px;border-radius:16px}.vm-card-rotor{display:grid;width:100%;min-width:0;transform-style:preserve-3d}.is-flipped>.vm-card-rotor{transform:rotateY(180deg)}.vm-card-face{grid-area:1 / 1;min-width:0;backface-visibility:hidden;-webkit-backface-visibility:hidden;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;text-align:center;padding:12px 0}.vm-card-front{min-height:300px}.vm-card-back{transform:rotateY(180deg)}.vm-flashcard h2,.vm-flashcard h3{overflow-wrap:anywhere;hyphens:auto;line-height:1.2}.vm-flashcard .prompt,.vm-flashcard .vm-card-prompt{width:100%;min-width:0}.vm-flashcard .prompt h2,.vm-card-word{font-size:clamp(28px,3.5vw,42px);margin:12px 0}.vm-flashcard p{max-width:60ch;overflow-wrap:anywhere}.vm-flashcard .row{flex-wrap:wrap;justify-content:center}.vm-flashcard .tag{white-space:normal;overflow-wrap:anywhere}.vm-card-source,.vm-card-hint,.vm-card-translation{color:var(--course-secondary);margin:0;line-height:1.6}.vm-card-source{font-size:15px}.vm-card-toggle{align-self:center;min-height:46px}.vm-flashcard button{min-height:44px;max-width:100%;white-space:normal;overflow-wrap:anywhere}.vm-flashcard :focus-visible{outline:2px solid #38bdf8;outline-offset:4px}.vm-card-example{border-top:1px solid var(--course-border);padding-top:20px;margin-top:8px;width:100%;box-sizing:border-box;text-align:center}.vm-card-example p{margin:0 auto 12px;line-height:1.65;font-size:17px}.vm-card-example p[lang=en]{color:var(--course-secondary);font-size:16px}.vm-card-example mark{color:#a0f5d8;background:#183e3c;padding:0 3px;border-radius:3px;box-decoration-break:clone;-webkit-box-decoration-break:clone}.vm-card-visual,.vm-flashcard .memory-visual,.vm-flashcard .vocabulary-visual{width:100%;max-width:320px;margin:0 auto;box-sizing:border-box}.vm-card-visual .memory-visual{padding:12px}.vm-flashcard .memory-visual svg,.vm-card-visual svg,.vm-flashcard .vocabulary-visual svg{display:block;width:100%;height:auto;max-height:180px;margin:0 auto}.vm-card-visual figcaption{display:none}.vm-flashcard .vocabulary-answer{margin:0;width:100%;display:flex;flex-direction:column;align-items:center;gap:16px}.vm-flashcard .vocabulary-answer h3{margin:0}.vm-flashcard .vocabulary-actions{margin-top:0;justify-content:center}.vm-flashcard #interaction{width:100%}.vm-flashcard #recallForm{display:flex;flex-wrap:wrap;gap:12px}.vm-flashcard #recall{min-width:0;width:100%;flex:1 1 180px}@media(max-width:600px){.mini-flashcard.vm-flashcard,.flashcard.vm-flashcard{padding:20px}.vm-card-front{min-height:240px}.vm-flashcard .prompt h2,.vm-card-word{font-size:28px}.vm-flashcard .ratings{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(prefers-reduced-motion:reduce){.vm-flashcard,.vm-card-rotor{animation:none!important;transition:none!important}}.course-root .course-inline-es{color:#e2d2ff;font-weight:700;text-decoration:underline;text-decoration-color:#aa94d8;text-decoration-thickness:.07em;text-underline-offset:.18em;overflow-wrap:anywhere}.course-root .course-word-example{border-top:1px solid var(--course-border);margin-top:24px;padding-top:20px;min-width:0}.course-root .course-word-example p{margin:0 0 8px;line-height:1.6;overflow-wrap:anywhere}.course-root .course-word-example p[lang=es]{font-size:1.125rem}.course-root .course-word-example p[lang=en],.course-root .course-example-note{color:var(--course-secondary)}.course-root .course-word-example mark{color:#f0e7ff;background:#493860;padding:0 .18em;border-radius:3px;box-decoration-break:clone;-webkit-box-decoration-break:clone}.course-root .course-word-example .course-audio{margin-top:4px}.course-root .a2-visual{margin:24px 0;padding:18px;border:1px solid #514963;border-radius:14px;background:#191923;min-width:0}.course-root .a2-visual h3{margin:0 0 14px;font-size:1rem;color:#d9caef}.course-root .a2-visual-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,150px),1fr));gap:10px}.course-root .a2-fact{padding:14px;border:1px solid #514963;border-radius:10px;background:#242433;line-height:1.5;overflow-wrap:anywhere}.course-root .a2-room-diagram{display:block;width:100%;height:auto;max-height:220px;margin-bottom:12px}.course-root .a2-room-shape rect{fill:#222231;stroke:#c084fc;stroke-width:4}.course-root .a2-room-shape text{fill:#f1eef9;font:700 28px Atkinson Hyperlegible,sans-serif;text-anchor:middle}.course-root .a2-room-icons{fill:none;stroke:#38bdf8;stroke-width:4;stroke-linecap:round;stroke-linejoin:round}.course-root .a2-room-icons circle{fill:#38bdf8;stroke:none}.course-root .a2-body-fact{display:grid;justify-items:center;gap:6px;text-align:center}.course-root .a2-body-fact svg{width:100%;max-width:140px;height:90px;fill:none;stroke:#c084fc;stroke-width:6;stroke-linecap:round;stroke-linejoin:round}.course-root .a2-body-fact span{color:var(--course-secondary)}.course-root .a2-route svg{display:block;width:100%;height:auto;max-height:360px;color:#9e8bc5}.course-root .a2-route-path{fill:none;stroke:#c084fc;stroke-width:8;stroke-linecap:round;stroke-linejoin:round}.course-root .a2-north{fill:none;stroke:#9e8bc5;stroke-width:6;stroke-linecap:round}.course-root .a2-diagram-arrow{fill:none;stroke:currentColor;stroke-width:6;stroke-linecap:round;stroke-linejoin:round}.course-root .a2-route-point circle{fill:#1d1d29;stroke:#38bdf8;stroke-width:5}.course-root .a2-route text{fill:#f1eef9;font:700 22px Atkinson Hyperlegible,sans-serif;text-anchor:middle}.course-root .a2-route-legend{list-style:none;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px 14px;padding:0;margin:-14px 0 16px}.course-root .a2-route-legend li{display:flex;align-items:center;gap:8px;min-width:0;overflow-wrap:anywhere}.course-root .a2-route-legend span{display:inline-grid;flex:0 0 28px;width:28px;height:28px;place-items:center;border:2px solid #38bdf8;border-radius:50%;color:#f1eef9;font-weight:700}.course-root .a2-delivery-route svg{display:block;width:100%;height:auto;max-height:260px;color:#c084fc}.course-root .a2-delivery-path{fill:none;stroke:#c084fc;stroke-width:8;stroke-linecap:round}.course-root .a2-delivery-points circle{fill:#1d1d29;stroke:#38bdf8;stroke-width:5}.course-root .a2-delivery-points circle:nth-of-type(2){fill:#315070}.course-root .a2-delivery-points text{fill:#f1eef9;font:600 15px Atkinson Hyperlegible,sans-serif}.course-root .a2-delivery-labels{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;margin:-20px 0 16px;text-align:center}.course-root .a2-delivery-labels strong{overflow-wrap:anywhere}.course-root .a2-note-section{margin-top:22px}.course-root .a2-note-section h4{margin-bottom:10px}.course-root .a2-earlier-notes{margin:16px 0 24px}.course-root .a2-north{stroke:#f1eef9;stroke-width:4}.course-root .a2-timeline{position:relative;display:grid;place-items:center;min-height:116px;color:#d9caef;text-align:center}.course-root .a2-timeline:before{content:"";position:absolute;left:8%;right:8%;top:55%;height:18px;border-radius:10px;background:#315070}.course-root .a2-timeline i{position:relative;z-index:1;width:18px;height:18px;margin:8px;border-radius:50%;background:#fbbf24;box-shadow:0 0 0 5px #1d1d29}.course-root .a2-timeline strong{position:relative;z-index:1}.course-root .authored-stimulus{margin:18px 0;padding:16px;border:1px solid #514963;background:#242433;border-radius:8px}.course-root .authored-dialogue-line{display:grid;grid-template-columns:minmax(72px,auto) minmax(0,1fr);align-items:start;gap:14px;margin:18px 0}.course-root .authored-dialogue-line>p{margin:8px 0 0;min-width:0;overflow-wrap:anywhere}.course-root .authored-speaker{display:grid;width:min-content;min-width:72px;justify-items:center;gap:6px;color:#f1eef9;text-align:center}.course-root .authored-speaker img,.course-root .authored-speaker-fallback{display:grid;width:48px;height:48px;box-sizing:border-box;place-items:center;border:2px solid #38bdf8;border-radius:8px;background:#18324a;object-fit:cover;color:#e0f2fe;font-weight:800}.course-root .authored-speaker strong{max-width:12ch;overflow-wrap:anywhere;font-size:.85rem;line-height:1.15}.course-root .authored-written-answer,.course-root [data-authored-notes]{min-height:7rem;resize:vertical;field-sizing:content}.course-root .course-extras{margin-top:16px;padding-top:12px;border-top:1px solid #403e52}.course-root .course-extras summary{min-height:44px;display:flex;align-items:center;cursor:pointer}@media(max-width:420px){.course-root .a2-visual{padding:14px}.course-root .a2-visual-grid{grid-template-columns:1fr}}:root{--conversation-surface: #142034;--conversation-surface-raised: #19283e;--conversation-border: #304058;--conversation-text: #e8edf5;--conversation-secondary: #b0bfd2;--conversation-action: #34d399}body:has(.conversations-root) .anchors{display:none}.conversations-root{max-width:1180px;margin:0 auto;padding:42px 28px 64px;color:var(--conversation-text);font-size:17px;line-height:1.6}.conversations-root *{min-width:0}.conversations-root h1,.conversations-root h2,.conversations-root h3{font-family:"Source Serif 4",Georgia,serif;font-weight:600}.conversations-root h1{margin:0 0 12px;font-size:clamp(2.2rem,5vw,4.2rem);line-height:1;letter-spacing:-.035em}.conversations-root h2{font-size:clamp(1.45rem,2.2vw,1.8rem);line-height:1.25}.conversations-root h3{margin:0 0 5px;font-size:1.4rem;line-height:1.3}.conversations-root p{margin:0}.conversations-root button:hover{transform:none}.conversations-root button:active{transform:translateY(1px)}.conversations-root button:focus-visible{outline:3px solid #38bdf8;outline-offset:3px}.conversations-intro{display:grid;grid-template-columns:minmax(0,1.6fr) minmax(260px,.7fr);gap:clamp(28px,6vw,78px);align-items:end;padding:18px 0 38px;border-bottom:1px solid var(--conversation-border)}.conversations-lead{max-width:63ch;color:var(--conversation-secondary);font-size:clamp(1.1rem,1.7vw,1.3rem)}.conversations-mode-note{padding:18px 20px;border:1px solid #28506c;background:#101b2d}.conversations-mode-note strong{display:block;margin-bottom:5px}.conversations-mode-note p{color:var(--conversation-secondary);font-size:.95rem}.conversations-mode-note button{margin-top:14px;padding:8px 0;border:0;border-radius:0;background:transparent;color:#7dd3fc;text-decoration:underline;text-underline-offset:4px}.conversations-resume{display:flex;align-items:center;justify-content:space-between;gap:24px;margin:24px 0 0;padding:18px 20px;border:1px solid #287d68;background:#102b2a}.conversations-resume h2{margin:0 0 2px;font-family:inherit;font-size:1.05rem;font-weight:700}.conversations-resume p{color:#bcebdc}.conversations-resume button,.conversations-action{border-color:#34d399;background:#34d399;color:#062c25;box-shadow:none;font-weight:700}.conversations-resume button:hover,.conversations-action:hover{border-color:#6ee7b7;background:#6ee7b7}.conversation-levels{margin:38px 0 32px;padding:0;overflow-x:auto;background:transparent;border:0;border-radius:0}.conversation-levels [role=tablist]{display:flex;min-width:max-content;border-bottom:1px solid var(--conversation-border)}.conversation-levels button{min-width:64px;min-height:46px;padding:8px 18px 10px;border:0;border-bottom:3px solid transparent;border-radius:0;background:transparent;color:var(--conversation-secondary);font-size:1rem}.conversation-levels button[aria-selected=true]{border-bottom-color:var(--conversation-action);color:#fff;background:#15283a}.conversation-list-heading{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:18px}.conversation-list-heading h2{margin:0 0 4px}.conversation-list-heading p{color:var(--conversation-secondary)}.conversation-list-heading>span{flex:0 0 auto;color:var(--conversation-secondary);font-variant-numeric:tabular-nums}.conversation-list{margin:0;padding:0;list-style:none;border-top:1px solid var(--conversation-border)}.conversation-row{border-bottom:1px solid var(--conversation-border)}.conversation-row.is-active{box-shadow:inset 4px 0 0 var(--conversation-action);background:#102722}.conversation-row article{display:grid;grid-template-columns:minmax(0,1fr) minmax(310px,.58fr);gap:clamp(24px,4vw,54px);padding:27px 20px}.conversation-row-main{display:grid;grid-template-columns:42px minmax(0,1fr);gap:16px}.conversation-order{color:#7dd3fc;font-size:.9rem;font-variant-numeric:tabular-nums;padding-top:5px}.conversation-setting{margin-bottom:8px!important;color:#8fc9df;font-size:.94rem}.conversation-copy>p:not(.conversation-setting):not(.conversation-cast){color:var(--conversation-secondary)}.conversation-cast{margin-top:12px!important;color:#c8d3e1;font-size:.9rem}.conversation-cast strong{color:var(--conversation-text)}.conversation-row-progress{align-self:center}.conversation-progress-label{margin-bottom:8px!important;font-size:.92rem;font-weight:700}.conversation-section-status{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:4px 14px;margin:0 0 16px;padding:0;list-style:none;color:var(--conversation-secondary);font-size:.87rem}.conversation-section-status li{display:flex;align-items:center;gap:7px}.conversation-section-status [data-section-complete=true]{color:#a7f3d0}.conversation-section-status li span:first-child{width:16px;color:#7dd3fc}.conversation-section-status [data-section-complete=true] span:first-child{color:var(--conversation-action)}.conversations-action{width:100%;min-height:44px;padding:9px 14px;font-size:.94rem}.conversations-pending{display:block;padding-top:6px;color:#93a5bb;font-size:.9rem}@media(max-width:780px){.conversations-root{padding:28px 18px 48px}.conversations-intro{grid-template-columns:1fr;gap:24px;padding-top:8px}.conversation-levels{margin:28px 0 24px}.conversation-row article{grid-template-columns:1fr;gap:18px;padding:23px 12px}.conversation-row-progress{padding-left:58px}}@media(max-width:430px){.conversations-root{padding-inline:14px}.conversations-resume{align-items:stretch;flex-direction:column;gap:14px}.conversations-resume button{width:100%}.conversation-list-heading{align-items:start;flex-direction:column;gap:8px}.conversation-row-main{grid-template-columns:34px minmax(0,1fr);gap:10px}.conversation-row-progress{padding-left:44px}.conversation-section-status{grid-template-columns:1fr}}@media(prefers-reduced-motion:reduce){.conversations-root *,.conversations-root *:before,.conversations-root *:after{transition:none!important;scroll-behavior:auto!important}}.conversation-back{margin-bottom:28px;padding:8px 0;border:0;background:transparent;color:#7dd3fc;text-decoration:underline;text-underline-offset:4px}.conversation-player-header{display:flex;align-items:end;justify-content:space-between;gap:36px;padding-bottom:28px;border-bottom:1px solid var(--conversation-border)}.conversation-player-header>div{max-width:740px}.conversation-player-header h1{font-size:clamp(2rem,5vw,3.6rem)}.conversation-player-header>div>p:last-child{color:var(--conversation-secondary);font-size:1.15rem}.conversation-level-label{margin-bottom:8px!important;color:#7dd3fc;font-size:.9rem;font-weight:700}.conversation-player-cast{display:flex;flex-wrap:wrap;justify-content:end;gap:6px 14px;color:var(--conversation-secondary);font-size:.9rem}.conversation-player-cast strong{flex-basis:100%;color:var(--conversation-text);text-align:right}.conversation-section-nav{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0;margin:28px 0 38px;padding:0;overflow:hidden;border:1px solid var(--conversation-border);border-radius:10px;background:#0c1728}.conversation-section-nav button{display:flex;justify-content:center;gap:8px;min-height:48px;border:0;border-right:1px solid var(--conversation-border);border-radius:0;background:transparent;font-size:.92rem}.conversation-section-nav button:last-child{border-right:0}.conversation-section-nav button[aria-current=step]{background:#183e3c;color:#a0f5d8}.conversation-section-nav button:disabled:not([aria-current]){opacity:.65}.conversation-understand{max-width:920px;margin:0 auto}.conversation-stage{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:20px}.conversation-stage h2{margin:0 0 6px}.conversation-stage>div p{max-width:64ch;color:var(--conversation-secondary)}.conversation-speed{flex:0 0 auto;margin:0;color:var(--conversation-secondary);font-size:.92rem}.conversation-speed input{margin-right:7px;accent-color:var(--conversation-action)}.conversation-scene{overflow:hidden;margin:0;border:1px solid var(--conversation-border);background:var(--conversation-surface)}.conversation-scene img{display:block;width:100%;height:auto;max-height:520px;object-fit:cover}.conversation-scene-fallback{display:grid;align-content:center;gap:10px;min-height:250px;padding:clamp(24px,6vw,64px);background:#18263a}.conversation-scene-fallback span{color:#7dd3fc;font-size:.85rem;font-weight:700}.conversation-scene-fallback strong{max-width:62ch;font-family:"Source Serif 4",Georgia,serif;font-size:clamp(1.25rem,3vw,2rem);font-weight:600}.conversation-scene figcaption{display:grid;gap:3px;padding:15px 18px;border-top:1px solid var(--conversation-border);color:var(--conversation-secondary);font-size:.92rem}.conversation-scene figcaption strong{color:var(--conversation-text)}.conversation-playback-bar{display:flex;align-items:center;gap:18px;margin:18px 0 28px}.conversation-playback-bar button{flex:0 0 auto}.conversation-playback-bar span{color:var(--conversation-secondary);font-size:.9rem}.conversation-transcript{margin:0;padding:0;list-style:none;border-top:1px solid var(--conversation-border)}.conversation-turn{border-bottom:1px solid var(--conversation-border)}.conversation-turn.is-current{background:#15283a;box-shadow:inset 4px 0 #38bdf8}.conversation-turn article{display:grid;grid-template-columns:116px minmax(0,1fr);gap:20px;padding:22px 18px}.conversation-speaker{display:grid;align-content:start;justify-items:start;gap:8px;font-size:.9rem}.conversation-portrait-fallback{display:grid;place-items:center;width:48px;aspect-ratio:1;border:1px solid #4c6380;border-radius:8px;background:#223550;color:#c9edfb;font-weight:700}.conversation-portrait{display:block;width:48px;height:48px;flex:0 0 48px;border:1px solid #4c6380;border-radius:8px;object-fit:cover;background:#223550}.conversation-line-copy>p[lang=es]{max-width:62ch;font-size:1.18rem}.conversation-meaning{margin-top:7px!important;color:var(--conversation-secondary)}.conversation-line-actions{display:flex;flex-wrap:wrap;gap:8px;margin-top:13px}.conversation-line-actions button{min-height:40px;padding:7px 12px;font-size:.86rem}.conversation-turn-controls{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:14px;margin:22px 0 32px}.conversation-turn-controls button:first-child{justify-self:start}.conversation-turn-controls button:last-child{justify-self:end}.conversation-turn-controls span{color:var(--conversation-secondary);font-variant-numeric:tabular-nums}.conversation-gist{padding:clamp(20px,4vw,34px);border:1px solid var(--conversation-border);background:#101b2d}.conversation-gist fieldset{margin:0 0 20px;padding:0;border:0}.conversation-gist legend{margin-bottom:14px;font-family:"Source Serif 4",Georgia,serif;font-size:1.35rem;font-weight:600}.conversation-gist label{display:flex;align-items:start;gap:12px;margin:6px 0;padding:11px 12px;border:1px solid transparent}.conversation-gist label:has(input:checked){border-color:#38bdf8;background:#142b3d}.conversation-gist input{flex:0 0 auto;width:20px;height:20px;margin:3px 0 0;accent-color:#38bdf8}.conversation-feedback{padding:16px 18px;border:1px solid #8a6c20;background:#2d2818}.conversation-feedback.is-correct{border-color:#287d68;background:#102b2a}.conversation-feedback p{margin-top:4px;color:var(--conversation-secondary)}.conversation-section-complete{margin-top:20px;padding:20px;border:1px solid #287d68;background:#102b2a}.conversation-section-complete strong{font-family:"Source Serif 4",Georgia,serif;font-size:1.35rem}.conversation-section-complete p{color:#bcebdc}.conversation-mode-progress{flex:0 0 auto;color:var(--conversation-secondary);font-variant-numeric:tabular-nums}.conversation-rehearse-list{margin:0;padding:0;list-style:none;border-top:1px solid var(--conversation-border)}.conversation-rehearse-list>li{display:grid;grid-template-columns:120px minmax(0,1fr) auto;gap:18px;align-items:center;padding:20px 12px;border-bottom:1px solid var(--conversation-border)}.conversation-rehearse-heading{display:flex;align-items:center;gap:10px;font-size:.9rem}.conversation-rehearse-heading>span{color:#7dd3fc;font-variant-numeric:tabular-nums}.conversation-rehearse-list p{display:flex;flex-wrap:wrap;gap:7px}.conversation-rehearse-list mark{padding:3px 7px;border:1px solid #3b536e;border-radius:5px;background:#17283e;color:var(--conversation-text)}.conversation-rehearse-list>li>div:last-child{display:flex;gap:7px}.conversation-rehearse-list button{min-height:40px;padding:7px 11px;font-size:.85rem}.conversation-role-choices{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:12px}.conversation-role-choices button{display:grid;grid-template-columns:48px minmax(0,1fr);gap:2px 12px;align-items:center;min-height:92px;padding:14px;text-align:left}.conversation-role-choices .conversation-portrait-fallback{grid-row:1 / 3}.conversation-role-choices span:last-child{color:var(--conversation-secondary);font-size:.86rem;font-weight:400}.conversation-role-toolbar{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:20px}.conversation-role-toolbar h2{margin:0 0 3px}.conversation-role-toolbar>div p{color:var(--conversation-secondary)}.conversation-role-toolbar fieldset{display:flex;gap:12px;margin:0;padding:0;border:0}.conversation-role-toolbar legend{margin-bottom:4px;color:var(--conversation-secondary);font-size:.82rem}.conversation-role-toolbar label{margin:0;font-size:.88rem}.conversation-role-toolbar input{margin-right:4px;accent-color:var(--conversation-action)}.conversation-role-cue{display:grid;grid-template-columns:100px minmax(0,1fr);gap:24px;min-height:250px;padding:clamp(22px,5vw,46px);border:1px solid var(--conversation-border);background:#15283a}.conversation-role-cue.is-learner{border-color:#287d68;background:#102b2a}.conversation-role-cue p[lang=es]{max-width:55ch;font-family:"Source Serif 4",Georgia,serif;font-size:clamp(1.35rem,3vw,2rem);line-height:1.4}.conversation-role-status{margin-bottom:12px!important;color:#8fc9df;font-size:.9rem;font-weight:700}.conversation-role-intent{max-width:50ch;color:var(--conversation-secondary);font-size:1.1rem}.conversation-role-actions{display:flex;flex-wrap:wrap;gap:9px;margin-top:26px}.conversation-role-actions button{min-height:44px}.conversation-support-note{margin:12px 0 24px!important;color:var(--conversation-secondary);font-size:.86rem}.conversation-role-finished{padding:clamp(26px,6vw,54px);border:1px solid #287d68;background:#102b2a;text-align:center}.conversation-role-finished p{margin-bottom:20px;color:#bcebdc}.conversation-exercise-card{padding:clamp(22px,5vw,42px);border:1px solid var(--conversation-border);background:#101b2d}.conversation-exercise-count{margin-bottom:8px!important;color:#7dd3fc;font-size:.86rem;font-weight:700;text-transform:capitalize}.conversation-exercise-card h3{margin-bottom:22px;font-size:clamp(1.3rem,2.5vw,1.7rem)}.conversation-exercise-card fieldset{margin:0 0 20px;padding:0;border:0}.conversation-exercise-card fieldset label{display:flex;align-items:start;gap:12px;margin:7px 0;padding:12px 14px;border:1px solid #31445d;background:#142034}.conversation-exercise-card fieldset label:has(input:checked){border-color:#38bdf8;background:#142b3d}.conversation-exercise-card fieldset input{flex:0 0 auto;width:20px;height:20px;margin:3px 0 0;accent-color:#38bdf8}.conversation-typed-answer{margin-bottom:20px}.conversation-typed-answer span{display:block;margin-bottom:6px;color:var(--conversation-secondary);font-size:.9rem}.conversation-typed-answer input{width:100%}.conversation-exercise-card>button{margin-top:16px}.conversation-review-note{margin:14px 0 24px!important;color:var(--conversation-secondary);font-size:.86rem}.conversation-celebration{position:fixed;inset:0;z-index:220;display:grid;place-items:center;overflow:hidden;padding:20px;pointer-events:none}.conversation-celebration:before{content:"";position:absolute;inset:0;background:#020617b8}.conversation-celebration-card{position:relative;z-index:2;width:min(92vw,620px);padding:clamp(28px,7vw,58px);border:2px solid #34d399;background:#102b2a;box-shadow:0 24px 70px #0009;text-align:center;pointer-events:auto}.conversation-celebration-card p{margin:0 0 26px;font-family:"Source Serif 4",Georgia,serif;font-size:clamp(2rem,6vw,4rem);font-weight:700;line-height:1.08;color:#ecfdf5}.conversation-celebration-card div{display:flex;flex-wrap:wrap;justify-content:center;gap:10px}.conversation-celebration-effect{position:absolute;inset:0;z-index:1;overflow:hidden}.conversation-celebration-effect i{position:absolute;left:var(--particle-x);top:-8%;width:9px;height:18px;background:#34d399;animation:conversation-confetti 2.5s cubic-bezier(.2,.7,.3,1) var(--particle-delay) both}.conversation-celebration-effect i:nth-child(3n){background:#38bdf8}.conversation-celebration-effect i:nth-child(3n+1){background:#fbbf24}.conversation-celebration.is-fireworks .conversation-celebration-effect i{top:50%;left:50%;width:8px;height:8px;border-radius:50%;animation-name:conversation-firework;transform:rotate(calc(var(--particle-index) * 20deg)) translate(0)}@keyframes conversation-confetti{0%{opacity:0;transform:translateY(-10vh) rotate(0)}12%{opacity:1}to{opacity:0;transform:translateY(110vh) rotate(520deg)}}@keyframes conversation-firework{0%{opacity:0;transform:rotate(calc(var(--particle-index) * 20deg)) translate(0) scale(.5)}18%{opacity:1}to{opacity:0;transform:rotate(calc(var(--particle-index) * 20deg)) translate(min(38vw,420px)) scale(1)}}@media(max-width:680px){.conversation-player-header,.conversation-stage{align-items:start;flex-direction:column;gap:18px}.conversation-player-cast{justify-content:start}.conversation-player-cast strong{text-align:left}.conversation-section-nav{grid-template-columns:repeat(2,minmax(0,1fr))}.conversation-section-nav button{border-bottom:1px solid var(--conversation-border)}.conversation-section-nav button:nth-child(2){border-right:0}.conversation-section-nav button:nth-child(n+3){border-bottom:0}.conversation-playback-bar{align-items:stretch;flex-direction:column}.conversation-turn article{grid-template-columns:76px minmax(0,1fr);gap:12px;padding-inline:10px}.conversation-turn-controls{grid-template-columns:1fr 1fr}.conversation-turn-controls span{grid-column:1 / -1;grid-row:1;text-align:center}.conversation-rehearse-list>li{grid-template-columns:1fr;gap:10px}.conversation-rehearse-list>li>div:last-child{justify-content:stretch}.conversation-rehearse-list button{flex:1}.conversation-role-toolbar{align-items:start;flex-direction:column}.conversation-role-toolbar fieldset{flex-wrap:wrap}.conversation-role-cue{grid-template-columns:70px minmax(0,1fr);gap:12px;padding:20px 14px}}@media(prefers-reduced-motion:reduce){.conversation-celebration-effect{display:none}}.settings-check{display:flex;align-items:center;gap:10px}.settings-check input{width:20px;height:20px;margin:0;accent-color:#34d399}
