@font-face {
  font-family: 'Nunito';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url(fonts/font-0.ttf) format('truetype');
}
@font-face {
  font-family: 'Nunito';
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url(fonts/font-1.ttf) format('truetype');
}
@font-face {
  font-family: 'Nunito';
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url(fonts/font-2.ttf) format('truetype');
}
@font-face {
  font-family: 'Nunito';
  font-style: normal;
  font-weight: 800;
  font-display: swap;
  src: url(fonts/font-3.ttf) format('truetype');
}
@font-face {
  font-family: 'Nunito';
  font-style: normal;
  font-weight: 900;
  font-display: swap;
  src: url(fonts/font-4.ttf) format('truetype');
}
@font-face {
  font-family: 'Russo One';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url(fonts/font-5.ttf) format('truetype');
}

:root{color-scheme:dark;--bg:#101e21;--panel:#1b2e30;--raised:#253c3d;--line:#3c5553;--text:#f5f5e9;--muted:#bacbc8;--lime:#b8ef70;--shadow:#0a1317;--world:#b8ef70;font-family:Nunito,'Segoe UI',sans-serif;font-size:16px}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);min-width:320px}button,input,select{font:inherit}button{cursor:pointer}button:disabled{cursor:default;opacity:.45}button:focus-visible,a:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid #fff6ab;outline-offset:5px}button{touch-action:manipulation}h1,h2,h3,p{margin-top:0}h1,h2,h3{line-height:1.15}h1,h2{font-family:'Russo One',Nunito,sans-serif;font-weight:400}h1{font-size:clamp(2.4rem,5vw,4.5rem)}h2{font-size:clamp(1.5rem,3vw,2.1rem)}h3{font-size:1.1rem}p{line-height:1.6}.muted{color:var(--muted)}.small{font-size:.875rem}.eyebrow{font-size:.75rem;font-weight:900;letter-spacing:.15em;text-transform:uppercase;color:var(--lime);margin-bottom:12px}.topbar{height:90px;max-width:1440px;margin:auto;display:flex;align-items:center;justify-content:space-between;gap:25px;padding:0 44px}.brand{background:none;border:0;color:var(--text);display:flex;gap:12px;align-items:center;text-align:left;font-family:'Russo One',sans-serif;line-height:.95;font-size:1.2rem;letter-spacing:.04em}.brand-mark{color:var(--lime);font-size:2.8rem;line-height:1}.brand-second{display:block;color:var(--lime);margin-top:5px}.topbar nav{display:flex;gap:8px}.nav{background:transparent;border:0;color:var(--muted);padding:13px 19px;font-weight:800;font-size:.95rem;border-radius:6px}.nav.active{color:#e8f6dc;background:#263930}.nav span{font-size:.75rem;background:#3e5542;border-radius:3px;padding:3px 6px;margin-left:5px}.icon-btn{width:44px;height:44px;flex-shrink:0;border:1px solid var(--line);background:var(--panel);color:var(--text);border-radius:6px;font-size:1.3rem}.skip{position:absolute;top:-100px;z-index:100;background:#fff;color:#000;padding:12px}.skip:focus{top:0}main{max-width:1352px;margin:auto;padding:0 28px;min-height:70vh}.hero{min-height:390px;position:relative;display:flex;align-items:flex-end;overflow:hidden;background:#233a30 url('world.webp') center 53%/cover;border:1px solid #506554;border-radius:12px}.hero:before{content:'';position:absolute;inset:0;background:linear-gradient(90deg,#071b1bea 0%,#0d1f2060 50%,transparent 75%),linear-gradient(0deg,#0c202aaa,transparent 60%)}.hero-content{position:relative;padding:35px 42px;width:min(640px,100%)}.hero h1{margin-bottom:14px;text-shadow:0 4px 0 #102823}.hero h1 span{color:#d5ffa8}.hero p{max-width:420px;color:#e3ebe5;margin-bottom:24px}.pill{display:inline-flex;gap:8px;align-items:center;background:#17302bc9;border:1px solid #688662;padding:6px 10px;border-radius:4px;font-size:.75rem;font-weight:900;letter-spacing:.08em;margin-bottom:15px}.primary,.secondary,.plain{border:0;font-weight:900;display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:46px;padding:12px 21px;border-radius:5px;text-decoration:none}.primary{background:var(--lime);color:#183522;box-shadow:0 4px 0 #628546}.primary:hover{background:#ceff94;transform:translateY(-1px)}.secondary{background:var(--raised);color:var(--text);border:1px solid #526766;box-shadow:0 3px 0 var(--shadow)}.secondary:hover{background:#344d4b}.plain{background:transparent;color:var(--muted);padding:8px 10px}.plain:hover{color:#fff}.section-head{display:flex;justify-content:space-between;align-items:end;gap:20px;margin:30px 0 17px}.section-head h2{font-size:1.45rem;margin:0 0 5px}.section-head p{font-size:.875rem;margin:0;color:var(--muted)}.worlds{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:17px}.world-card{background:var(--panel);color:var(--text);text-align:left;padding:22px;border:1px solid var(--line);border-top:3px solid var(--world);border-radius:6px;box-shadow:0 4px 0 var(--shadow);position:relative;transition:transform .2s,border-color .2s}.world-card:hover{transform:translateY(-4px);border-color:var(--world)}.world-card .card-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}.world-icon{width:48px;height:48px;border:1px solid #ffffff25;background:#ffffff0b;display:grid;place-items:center;font-size:1.6rem;border-radius:5px}.world-no{color:var(--world);font-family:'Russo One',sans-serif;font-size:.8rem;letter-spacing:.1em}.world-card h3{font-size:1.2rem;margin-bottom:6px}.world-card p{font-size:.875rem;color:var(--muted);margin:0 0 22px}.card-foot{display:flex;justify-content:space-between;font-size:.8rem;color:#d0ddcf;font-weight:800}.track{height:5px;background:#0e2121;margin-top:12px;border-radius:1px;overflow:hidden}.track>span{display:block;height:100%;background:var(--world)}footer{max-width:1352px;margin:35px auto 0;padding:22px 28px 28px;display:flex;justify-content:space-between;gap:15px;color:#a7b9b5;font-size:.75rem;border-top:1px solid #2e4240}.back{margin:18px 0}.world-head{display:flex;gap:20px;align-items:center;margin:10px 0 28px}.world-head .world-icon{width:72px;height:72px;font-size:2rem;flex-shrink:0}.world-head h1{font-size:clamp(1.8rem,4vw,3rem);margin:6px 0}.world-head p{margin:0;color:var(--muted)}.world-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:24px}.panel{padding:25px;background:var(--panel);border:1px solid var(--line);border-radius:8px}.panel h2{font-size:1.3rem}.mission-list{display:grid;gap:14px}.mission-row{display:flex;align-items:center;gap:17px;text-align:left;color:var(--text);padding:19px;background:var(--panel);border:1px solid var(--line);border-radius:6px;box-shadow:0 4px var(--shadow);width:100%}.mission-row:hover{border-color:var(--world);background:#233b39}.mission-num{font-family:'Russo One',sans-serif;color:var(--world);font-size:1.3rem;width:35px;flex-shrink:0}.mission-copy{flex:1;min-width:0}.mission-copy b{display:block;margin-bottom:5px;font-size:1.06rem}.mission-copy small{display:block;color:var(--muted);line-height:1.5;font-size:.875rem}.mission-status{font-size:.875rem;color:var(--world);text-align:right;min-width:34px}.lesson{max-width:900px;margin:auto}.lesson-head{display:flex;justify-content:space-between;gap:15px;align-items:center;margin-bottom:18px}.lesson-head h1{font-size:clamp(1.6rem,3vw,2.3rem);margin:5px 0 8px}.lesson-head p{margin:0;color:var(--muted)}.lesson-meta{display:flex;align-items:center;gap:12px;margin-bottom:20px;color:var(--muted);font-size:.875rem}.lesson-meta .track{flex:1;margin:0;height:7px}.question-box{padding:30px;background:var(--panel);border:1px solid var(--line);border-radius:8px;box-shadow:0 5px var(--shadow);min-height:290px}.question-label{font-size:.875rem;color:var(--muted);text-align:center;margin:0 0 18px}.prompt{font-size:clamp(1.3rem,3vw,2rem);font-weight:900;text-align:center;line-height:1.35;margin:18px auto 26px;max-width:700px;overflow-wrap:anywhere}.prompt .scene{display:block;font-size:3rem;margin-bottom:12px}.choices{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.choice{min-height:62px;line-height:1.45;text-align:center;padding:15px;color:var(--text);background:#294140;border:2px solid #4b6561;border-radius:5px;font-weight:800;overflow-wrap:anywhere}.choice:hover{background:#34524a}.choice[aria-pressed=true]{background:#415834;border-color:var(--lime);color:#f5ffd9;box-shadow:inset 0 0 0 1px var(--lime)}.lesson-actions{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;margin:25px 0}.action-right{display:flex;gap:12px;flex-wrap:wrap}.steps{display:flex;gap:7px;flex-wrap:wrap;justify-content:center;margin:20px 0}.step{width:33px;height:33px;font-size:.75rem;border:1px solid #5c716d;background:#243b39;color:#d0dfd9;border-radius:3px}.step.done{background:#3b5736;color:#e3ffbc;border-color:#7d9d65}.step.current{border:2px solid var(--lime);color:var(--lime)}.audio-group{display:flex;gap:9px;justify-content:center;flex-wrap:wrap;margin:16px 0}.audio-button{font-weight:800;background:#244442;border:1px solid #4e7970;color:#d7f9ec;padding:10px 15px;border-radius:5px;min-height:44px}.audio-button:hover{background:#305b52}.listen-orb{width:85px;height:85px;border:2px solid #709b7c;border-radius:8px;background:#284b3d;margin:auto;display:grid;place-items:center;font-size:2.8rem;box-shadow:6px 6px #102821}.answer-slots{display:flex;justify-content:center;align-items:center;gap:7px;flex-wrap:wrap;min-height:65px;padding:13px;background:#101f21;border:2px dashed #658378;border-radius:5px;margin:20px 0}.answer-slots .placeholder{color:#a4b8b0;font-size:.875rem}.tiles{display:flex;flex-wrap:wrap;gap:9px;justify-content:center;margin:20px 0}.tile{min-width:44px;min-height:46px;padding:10px 13px;color:#203223;background:#e8ecd9;border:0;border-bottom:4px solid #93a28b;border-radius:3px;font-weight:900}.tile:hover{background:#faffde}.tile.used{visibility:hidden}.tile.space{width:45px;color:#426245}.input-answer{display:block;width:min(450px,100%);margin:22px auto;padding:16px;background:#0f2221;border:2px solid #739483;border-radius:5px;color:#fff;text-align:center;font-size:1.2rem}.hint{text-align:center;color:var(--muted);font-size:.875rem;margin-top:15px}.pair-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.pair-column{display:grid;gap:12px}.pair-card{text-align:center;min-height:74px;padding:10px;color:var(--text);background:#29413f;border:2px solid #59716a;border-radius:4px;font-weight:800;position:relative;overflow-wrap:anywhere}.pair-card.selected{border-color:var(--lime);background:#3e5735}.pair-card.linked{border-color:#69bab5;background:#254a47}.pair-card .pair-number{display:block;font-size:.75rem;color:#d3f49b;margin-top:6px}.pair-grid .pair-column h3{text-align:center;color:var(--muted);font-size:.875rem;margin:0}.memory-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}.memory-card{min-height:110px;word-break:break-word;padding:12px;border:2px solid #657e69;background:linear-gradient(135deg,#4a643d,#283e30);color:var(--text);font-weight:900;border-radius:5px;box-shadow:0 4px #122820}.memory-card.cover{font-size:2rem;color:#b8d994}.memory-card.found{background:#244b41;border-color:#89cfa9;box-shadow:none}.memory-card:disabled{opacity:1}.flash-card{max-width:600px;margin:15px auto;background:#243d38;border:2px solid #74916f;box-shadow:7px 7px #0a1817;padding:35px 25px;text-align:center;min-height:270px;border-radius:7px}.flash-en{font-size:clamp(1.6rem,4vw,2.5rem);font-weight:900;line-height:1.3}.flash-pl{font-size:1.2rem;color:#e0eccc;margin:20px 0;line-height:1.5}.vocab-list{display:grid;gap:10px;margin-top:25px}.vocab-row{display:flex;align-items:center;gap:15px;padding:14px 17px;background:var(--panel);border:1px solid var(--line);border-radius:5px}.vocab-row .vocab-copy{flex:1}.vocab-row b{display:block;margin-bottom:5px}.vocab-row span{color:var(--muted);font-size:.875rem}.result-hero{text-align:center;padding:35px 25px;background:linear-gradient(140deg,#304d38,#21383b);border:1px solid #648366;border-radius:10px}.grade-medal{font-family:'Russo One',sans-serif;font-size:4rem;display:grid;place-items:center;width:118px;height:118px;margin:0 auto 18px;background:#d1f492;color:#213728;box-shadow:7px 7px #101f1c;border:6px solid #a4cc6e}.result-hero h1{font-size:2rem;margin-bottom:12px}.result-hero p{max-width:590px;margin:10px auto}.result-score{font-size:1.2rem;color:#eaffc8;font-weight:900}.result-actions{display:flex;gap:14px;flex-wrap:wrap;justify-content:center;margin:25px 0}.review{display:grid;gap:12px}.review-row{display:flex;gap:16px;align-items:start;padding:17px;background:var(--panel);border:1px solid var(--line);border-left:4px solid #79bd9d;border-radius:4px}.review-row.wrong{border-left-color:#ffc878}.review-copy{flex:1;min-width:0}.review-copy p{margin:5px 0;overflow-wrap:anywhere}.review-copy .expected{color:#d2f5a6;font-weight:800}.badge-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.badge{background:var(--panel);border:1px solid var(--line);padding:23px;text-align:center;border-radius:6px}.badge .symbol{font-size:2.7rem;margin-bottom:12px}.badge p{color:var(--muted);font-size:.875rem}.badge h3{margin:12px 0}.badge.locked .symbol{filter:grayscale(1);opacity:.5}.badge .track{margin-top:20px}dialog{color:var(--text);background:var(--panel);border:2px solid #6a897b;border-radius:10px;padding:28px;max-width:570px;width:calc(100% - 30px);max-height:85dvh;overflow:auto}dialog::backdrop{background:#021412c9;backdrop-filter:blur(6px)}.dialog-head{display:flex;align-items:center;justify-content:space-between;gap:15px;margin-bottom:15px}.dialog-head h2{font-size:1.5rem;margin:0}.setting{display:flex;align-items:center;gap:13px;padding:12px 0;font-weight:800}.setting input{width:22px;height:22px;accent-color:var(--lime)}summary{cursor:pointer;font-weight:800;padding:14px 0}table{width:100%;border-collapse:collapse;font-size:.875rem;margin-bottom:18px}th,td{text-align:left;padding:10px 5px;border-bottom:1px solid var(--line)}#toast{position:fixed;bottom:22px;left:50%;transform:translateX(-50%);max-width:calc(100% - 35px);width:max-content;background:#e2f2ca;color:#1d3b2b;box-shadow:0 5px 20px #0005;border-radius:5px;padding:13px 20px;z-index:40;display:none;font-weight:800}#toast.visible{display:block}#confetti{pointer-events:none;position:fixed;inset:0;overflow:hidden;z-index:80}.confetto{position:absolute;width:11px;height:14px;top:-20px;animation:fall 2.6s ease-in forwards}@keyframes fall{to{transform:translate(var(--dx),105vh) rotate(620deg)}}.pop{animation:pop .45s ease-out}@keyframes pop{from{transform:scale(.8)}to{transform:scale(1)}}.warn-box{padding:12px;background:#49462c;color:#fff0b7;border:1px solid #887949;border-radius:4px;margin:12px 0}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}[hidden]{display:none!important}
@media(min-width:1400px){.hero{min-height:430px}}@media(max-width:900px){.topbar{padding:0 25px}.world-layout{grid-template-columns:1fr}.world-layout aside{order:-1}.worlds,.badge-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.hero{min-height:370px}.hero-content{padding:30px}.hero:before{background:linear-gradient(90deg,#071b1bf2,#0d1f2070)}}@media(max-width:550px){.topbar{height:80px;padding:0 16px;gap:10px}.brand{font-size:.85rem;gap:6px}.brand-mark{font-size:2rem}.nav{padding:10px 8px;font-size:.8rem}.nav span{display:block;margin:3px 0 0}.topbar nav{gap:0}.icon-btn{width:40px;height:40px}.hero{min-height:350px;background-position:61% center}.hero-content{padding:25px 20px}.hero h1{font-size:2.6rem}.hero p{font-size:.95rem}main{padding:0 16px}.worlds{gap:12px}.world-card{padding:16px}.world-card .card-top{margin-bottom:15px}.world-card h3{font-size:1.05rem}.world-card p{font-size:.8rem;margin-bottom:16px}.card-foot{font-size:.72rem;gap:7px}.section-head{align-items:start;flex-direction:column;gap:5px}.question-box{padding:21px 15px}.choices{grid-template-columns:1fr}.memory-grid{gap:8px;grid-template-columns:repeat(2,minmax(0,1fr))}.memory-card{min-height:90px}.lesson-head{align-items:start}.lesson-actions .primary,.lesson-actions .secondary{padding:11px 14px}.lesson-actions{gap:10px}.pair-card{min-height:95px;font-size:.9rem}.world-head .world-icon{width:54px;height:54px;font-size:1.7rem}.mission-row{padding:15px;gap:10px}.mission-status{font-size:.75rem}.badge-grid{gap:12px}.badge{padding:18px 12px}.review-row{padding:13px;gap:10px}.review-row .audio-button{padding:8px}footer{padding:20px 16px;flex-direction:column;gap:7px}.result-hero h1{font-size:1.7rem}.result-hero{padding:28px 16px}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation:none!important;transition:none!important;scroll-behavior:auto!important}}body.no-motion *,body.no-motion *:before,body.no-motion *:after{animation:none!important;transition:none!important}

.embedded main{min-height:0}