:root{
 --paper:#f4efe4;--surface:#fffaf0;--surface-2:#ebe3d6;--ink:#201d19;--muted:#6b6259;
 --line:#d8cdbd;--orange:#ff6433;--orange-strong:#dd4219;--coral:#ff8b72;--green:#2d7651;
 --green-soft:#e0f0e4;--blue:#4267b2;--yellow:#f3c64f;--shadow:0 12px 30px rgba(38,28,18,.08);
 --radius:22px;--radius-sm:13px;--focus:#1769e0;--display:Impact,'Arial Black','Arial Narrow',sans-serif;
 --body:Inter,ui-sans-serif,system-ui,-apple-system,'Segoe UI',sans-serif;--max:1280px
}
body.dark{--paper:#181714;--surface:#24211c;--surface-2:#302b24;--ink:#fff8ea;--muted:#c8baaa;--line:#50483e;--green-soft:#183829;--shadow:0 14px 40px rgba(0,0,0,.25)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font:15px/1.55 var(--body);text-rendering:optimizeLegibility}button,input,select,textarea{font:inherit}button{cursor:pointer;color:inherit}a{color:inherit}.skip-link{position:fixed;left:16px;top:-80px;z-index:99;background:var(--ink);color:var(--paper);padding:12px 16px;border-radius:10px}.skip-link:focus{top:16px}button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,a:focus-visible,summary:focus-visible{outline:3px solid var(--focus);outline-offset:3px}.shell{max-width:var(--max);margin:auto;padding:0 28px}.top{position:sticky;top:0;z-index:20;display:flex;align-items:center;justify-content:space-between;gap:18px;border-bottom:1px solid color-mix(in srgb,var(--line),transparent 25%);padding:14px 0;background:color-mix(in srgb,var(--paper) 90%,transparent);backdrop-filter:blur(14px)}.brand{font:900 31px/1 var(--body);letter-spacing:-2.2px;text-decoration:none}.brand span{color:var(--orange)}.top nav{display:flex;align-items:center;gap:4px;flex-wrap:wrap}.navbtn,.quiet{border:0;background:transparent;color:var(--muted);padding:10px 12px;border-radius:999px}.navbtn:hover,.quiet:hover{background:var(--surface-2);color:var(--ink)}.btn{border:0;border-radius:999px;background:var(--orange);color:#201711;padding:13px 19px;font-weight:850;display:inline-flex;align-items:center;justify-content:center;gap:8px;text-decoration:none;box-shadow:0 5px 0 color-mix(in srgb,var(--orange-strong),#000 8%);transition:transform .18s ease,box-shadow .18s ease,background .18s ease}.btn:hover{transform:translateY(-2px);box-shadow:0 7px 0 color-mix(in srgb,var(--orange-strong),#000 8%)}.btn:active{transform:translateY(2px);box-shadow:0 2px 0 var(--orange-strong)}.btn.secondary{background:var(--ink);color:var(--paper);box-shadow:0 5px 0 #000}.btn.outline{background:var(--surface);border:1px solid var(--line);color:var(--ink);box-shadow:none}.btn.small{padding:9px 13px;font-size:13px}.badge{display:inline-block;border:2px solid var(--orange);color:var(--orange-strong);padding:4px 9px;border-radius:6px;transform:rotate(-1.5deg);font-size:11px;font-weight:900;letter-spacing:1px;text-transform:uppercase}.eyebrow{font-size:11px;letter-spacing:2px;color:var(--orange-strong);font-weight:900;text-transform:uppercase}h1,h2,h3{letter-spacing:-.045em;line-height:.95;margin:0 0 14px;font-family:var(--display)}h1{font-size:clamp(52px,7.8vw,104px)}h2{font-size:clamp(38px,5.2vw,68px)}h3{font-size:clamp(24px,2.6vw,32px)}p{margin:0 0 14px}.muted{color:var(--muted)}.hero{display:grid;grid-template-columns:minmax(0,1.08fr) minmax(350px,.92fr);gap:38px;align-items:center;padding:55px 0 36px;min-height:610px}.hero-copy{position:relative;z-index:2}.hero-copy>p{font-size:18px;max-width:650px}.hero-kicker{display:flex;gap:9px;align-items:center;flex-wrap:wrap;margin-bottom:20px}.hero-title em{font-style:normal;color:var(--orange)}.hero-actions{display:flex;gap:11px;flex-wrap:wrap;margin-top:24px}.constellation-wrap{position:relative;min-height:430px;border:1px solid var(--line);border-radius:36px;overflow:hidden;background:radial-gradient(circle at 50% 45%,rgba(255,100,51,.22),transparent 35%),linear-gradient(145deg,var(--ink),#3d3228);box-shadow:var(--shadow);isolation:isolate}.constellation-wrap:before{content:'';position:absolute;inset:16px;border:1px dashed rgba(255,255,255,.2);border-radius:25px;pointer-events:none}.language-constellation{display:block;width:100%;height:100%;min-height:430px}.constellation-caption{position:absolute;left:25px;bottom:21px;color:#fff7e8;max-width:250px;font-size:12px;letter-spacing:.04em}.constellation-fallback{position:absolute;inset:0;display:grid;place-items:center;color:#fff;font:900 54px/1 var(--display);text-align:center}.context-bar{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:1px;border:1px solid var(--line);border-radius:18px;overflow:hidden;background:var(--line);margin:0 0 24px}.context-item{background:var(--surface);padding:15px 16px;min-width:0}.context-item span{display:block;color:var(--muted);font-size:11px;text-transform:uppercase;letter-spacing:.08em;font-weight:800}.context-item strong{display:block;margin-top:4px;font-size:15px;overflow-wrap:anywhere}.section{padding:50px 0}.section-head{display:flex;justify-content:space-between;gap:15px;align-items:end;margin-bottom:22px}.panel,.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow)}.dark-panel{background:var(--ink);color:var(--paper)}.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:15px}.grid.two{grid-template-columns:repeat(2,minmax(0,1fr))}.card{min-width:0;transition:transform .18s ease,border-color .18s ease}.card:hover{transform:translateY(-3px);border-color:color-mix(in srgb,var(--orange),var(--line) 35%)}button.card{text-align:left;width:100%}.card p{color:var(--muted);font-size:14px}.metric{font:900 48px/1 var(--display);color:var(--orange-strong)}.progress{height:12px;border-radius:20px;background:var(--surface-2);overflow:hidden}.progress div{height:100%;background:linear-gradient(90deg,var(--orange),var(--coral));border-radius:inherit}.daily-card{display:grid;grid-template-columns:1fr auto;gap:24px;align-items:center;margin-bottom:18px}.daily-ring{width:126px;aspect-ratio:1;border-radius:50%;display:grid;place-items:center;background:conic-gradient(var(--green) var(--percent),var(--surface-2) 0);position:relative}.daily-ring:after{content:'';position:absolute;inset:12px;border-radius:50%;background:var(--surface)}.daily-ring strong{z-index:1;font:900 30px var(--display)}.stage-track{display:grid;grid-template-columns:repeat(5,1fr);gap:8px;margin:18px 0}.stage-dot{display:flex;gap:8px;align-items:center;padding:9px;border-radius:12px;background:var(--surface-2);font-size:12px;font-weight:800}.stage-dot i{width:22px;height:22px;border-radius:50%;display:grid;place-items:center;background:var(--surface);font-style:normal}.stage-dot.done{background:var(--green-soft);color:var(--green)}.stage-dot.current{outline:2px solid var(--orange)}.evidence-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:15px}.skill-panel{grid-column:span 1}.skill-list{display:grid;gap:12px;margin-top:16px}.skill-row{display:grid;grid-template-columns:100px 1fr auto;gap:10px;align-items:center}.skill-row span,.skill-row small{font-size:12px}.skill-bar{height:7px;background:var(--surface-2);border-radius:10px;overflow:hidden}.skill-bar i{display:block;height:100%;background:var(--green);border-radius:inherit}.extra-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}.extra-card{position:relative;min-height:220px;display:flex;flex-direction:column;overflow:hidden}.extra-card .extra-icon{width:50px;height:50px;border-radius:15px;display:grid;place-items:center;background:var(--surface-2);margin-bottom:22px;color:var(--orange-strong)}.extra-card svg{width:28px;height:28px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}.extra-card h3{font-size:29px}.extra-card .extra-action{margin-top:auto;font-weight:850;color:var(--ink)}.extra-card[data-kind=music]{--accent:#dc4f73}.extra-card[data-kind=news]{--accent:#4267b2}.extra-card[data-kind=video]{--accent:#e64d35}.extra-card[data-kind=text]{--accent:#8a5ac2}.extra-card[data-kind=games]{--accent:#2b8a65}.extra-card[data-kind=technology]{--accent:#257a96}.extra-card[data-kind=conversation]{--accent:#d16b28}.extra-card[data-kind=podcast]{--accent:#7a62d3}.extra-card .extra-icon{background:color-mix(in srgb,var(--accent),transparent 85%);color:var(--accent)}.teacher-choice{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.teacher-choice .panel{position:relative;overflow:hidden}.availability{display:inline-flex;align-items:center;gap:7px;padding:5px 9px;background:var(--green-soft);color:var(--green);border-radius:99px;font-size:12px;font-weight:850}.availability.off{background:var(--surface-2);color:var(--muted)}.tabs{display:flex;gap:8px;flex-wrap:wrap;margin:16px 0}.tab{border:1px solid var(--line);background:var(--surface);border-radius:30px;padding:9px 15px}.tab.active{border-color:var(--orange);background:var(--orange);font-weight:850}.week-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:11px}.week{border:1px solid var(--line);background:var(--surface);border-radius:16px;padding:17px;text-align:left;min-height:132px}.week:hover,.week.active{border-color:var(--orange);box-shadow:var(--shadow)}.week b{display:block;color:var(--orange-strong);font-size:12px;margin-bottom:10px}.week strong{font:900 24px var(--display)}.week small{display:block;color:var(--muted);margin-top:8px}.lesson-step{border-top:1px solid var(--line);padding:20px 0}.lesson-step:first-child{border-top:0}.transcript{border-left:4px solid var(--orange);padding:12px 17px;background:var(--paper);margin:12px 0;border-radius:0 12px 12px 0}.transcript p{margin:8px 0}.vocab{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:7px;max-height:400px;overflow:auto}.vocab button{background:var(--paper);border:1px solid var(--line);border-radius:10px;padding:10px;text-align:left;color:var(--ink)}.vocab small{display:block;color:var(--muted)}.field{display:flex;flex-direction:column;gap:6px;font-weight:750;font-size:13px}.field input,.field select,.field textarea,input.input,select.input,textarea.input{border:1px solid var(--line);border-radius:12px;padding:12px 13px;background:var(--surface);color:var(--ink);min-width:0}.field textarea,textarea.input{min-height:102px;resize:vertical}.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.checks{display:flex;flex-wrap:wrap;gap:8px}.checks label{border:1px solid var(--line);border-radius:999px;padding:8px 11px;background:var(--surface)}.checks input{accent-color:var(--orange)}.message{padding:13px 16px;border-radius:12px;background:var(--green-soft);color:var(--green);margin:14px 0}.error{background:#fce1d8;color:#8b2a17}.stage-head{display:flex;justify-content:space-between;gap:15px;align-items:center}.stage-nav{display:flex;gap:7px;flex-wrap:wrap}.stage-nav span{padding:8px 11px;border:1px solid var(--line);border-radius:99px;font-size:12px}.stage-nav .current{background:var(--orange);border-color:var(--orange);font-weight:800}.chat{height:280px;overflow:auto;border:1px solid var(--line);border-radius:14px;background:var(--paper);padding:12px}.chat .bubble{padding:11px 13px;border-radius:14px;margin:8px 0;max-width:85%;white-space:pre-wrap}.chat .me{background:#f7d0bf;margin-left:auto}.chat .teacher{background:var(--surface);border:1px solid var(--line)}.options label{display:block;border:1px solid var(--line);border-radius:10px;padding:10px;margin:7px 0}.footer{border-top:1px solid var(--line);padding:30px 0 46px;color:var(--muted);font-size:12px}.mobile-menu{display:none}details.help{border-top:1px solid var(--line);padding-top:14px;margin-top:18px}details.help summary{cursor:pointer;font-weight:800}.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}
.extra-card h3,.teacher-choice h3{font-family:var(--body);font-weight:900;letter-spacing:-.04em;line-height:1.05}.extra-card h3{font-size:27px}
@media(max-width:1000px){.extra-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.context-bar{grid-template-columns:repeat(3,1fr)}.week-grid{grid-template-columns:repeat(3,1fr)}.vocab{grid-template-columns:repeat(3,1fr)}}
@media(max-width:760px){.shell{padding:0 18px}.top{align-items:center}.top nav{justify-content:flex-end}.top nav .navbtn{display:none}.top nav .mobile-menu{display:inline-block}.hero{grid-template-columns:1fr;gap:20px;padding:34px 0 25px;min-height:auto}.constellation-wrap{display:block;min-height:270px;border-radius:25px}.language-constellation{min-height:270px}.constellation-caption{font-size:11px}.context-bar{grid-template-columns:repeat(2,1fr)}.grid,.grid.two,.form-grid,.teacher-choice,.evidence-grid{grid-template-columns:1fr}.daily-card{grid-template-columns:1fr}.daily-ring{width:106px}.stage-track{grid-template-columns:1fr 1fr}.week-grid{grid-template-columns:repeat(2,1fr)}.vocab{grid-template-columns:repeat(2,1fr)}.section{padding:36px 0}.section-head{display:block}.skill-panel{grid-column:auto}.card,.panel{padding:19px}h1{font-size:clamp(52px,17vw,76px)}h2{font-size:45px}.extra-card{min-height:190px}}
@media(max-width:390px){.shell{padding:0 14px}.brand{font-size:27px}.top{gap:8px}.quiet{padding:9px}.context-bar,.extra-grid,.week-grid{grid-template-columns:1fr}.hero-actions .btn{width:100%}.stage-track{grid-template-columns:1fr}.constellation-wrap,.language-constellation{min-height:235px}.skill-row{grid-template-columns:82px 1fr}.skill-row small{grid-column:2}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation:none!important;transition:none!important}.btn:hover,.card:hover{transform:none}}