@import"https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;650;700;750;800&display=swap";.welcome-shell{min-height:100dvh;background:#f6f5f1;color:#19181b;padding:28px 5vw;box-sizing:border-box}.welcome-header{display:flex;align-items:center;justify-content:space-between;gap:16px;max-width:1440px;margin:auto}.welcome-header>div{font-size:26px;font-weight:750;letter-spacing:-1px}.welcome-header>div span{font-weight:400}.welcome-shell button,.welcome-shell input{font:inherit}.welcome-quiet{background:none;border:0;color:#615c68;display:inline-flex;align-items:center;justify-content:center;gap:10px;cursor:pointer;padding:12px 0;font-size:14px}.welcome-progress{display:flex;gap:8px;max-width:320px;margin:30px auto}.welcome-progress>span,.welcome-progress>button{height:5px;flex:1;background:#dedbdc;border:0;border-radius:8px}.welcome-progress>button{cursor:pointer;height:8px}.welcome-progress .done{background:#756488}.welcome-layout{display:grid;grid-template-columns:1fr 1.12fr;gap:5vw;align-items:center;max-width:1260px;margin:20px auto;min-height:610px}.welcome-visual{position:relative;border-radius:42px;background:#e9e1f1;min-height:590px;display:flex;flex-direction:column;justify-content:center;overflow:hidden}.welcome-orbit{position:relative;display:grid;place-items:center;min-height:390px}.welcome-orb{position:relative;width:270px;height:270px;display:grid;place-items:center;isolation:isolate}.welcome-orb img{width:100%;height:100%;object-fit:contain;filter:drop-shadow(0 22px 20px #584a7130);animation:welcome-float 6s ease-in-out infinite}.welcome-orb i{position:absolute;top:9%;right:9%;bottom:9%;left:9%;border:1px solid #a99abe55;border-radius:50%;transform:scale(1.25)}.welcome-orb i:nth-child(2){transform:scale(1.55);border-style:dashed;opacity:.6}.welcome-orb.speaking img{animation:welcome-speak 1s ease-in-out infinite}.welcome-float{position:absolute;background:#f8f6fbbd;-webkit-backdrop-filter:blur(9px);backdrop-filter:blur(9px);border:1px solid #fff9;border-radius:22px;min-width:68px;min-height:68px;display:grid;place-items:center;font-size:30px;box-shadow:0 14px 25px #5b466611;animation:welcome-float 5s ease-in-out infinite}.float-one{left:9%;top:18%;transform:rotate(-13deg)}.float-two{right:8%;bottom:18%;animation-delay:-2s;background:#e0f5a9}.float-three{right:11%;top:8%;color:#8e71b2;font-size:38px;animation-delay:-3s}.welcome-meza-caption{padding:20px 38px 40px}.welcome-meza-caption>span{font-size:11px;letter-spacing:2px;color:#7d6b8c}.welcome-meza-caption p{font-size:22px;line-height:1.5;margin:14px 0 0;letter-spacing:-.4px}.welcome-content{animation:welcome-enter .45s ease both}.welcome-content h1,.guide-copy h1{font-size:clamp(34px,4.1vw,58px);line-height:1.05;letter-spacing:-2px;margin:16px 0 24px;white-space:pre-line;outline:none}.welcome-lead{font-size:19px;color:#68616e;line-height:1.6;margin:0 0 24px;max-width:590px}.welcome-primary{border:0;border-radius:100px;background:#d9fb6a;color:#171a14;min-height:58px;padding:15px 28px;font-weight:650!important;display:inline-flex;align-items:center;justify-content:center;gap:24px;cursor:pointer;transition:transform .2s,background .2s}.welcome-primary:hover{background:#c7f14d;transform:translateY(-2px)}.welcome-primary:disabled{opacity:.4;cursor:default;transform:none}.welcome-content>.welcome-primary{display:flex;width:100%;margin:20px 0 5px}.welcome-content>.welcome-quiet{display:flex;width:100%}.welcome-benefits{display:grid;gap:16px;margin:30px 0}.welcome-benefits span{display:flex;gap:12px;align-items:center}.welcome-benefits svg{font-size:21px;color:#887394}.welcome-label{display:grid;gap:14px;color:#67616d}.welcome-label input{width:100%;box-sizing:border-box;background:#fff;border:1px solid #dfdbe2;border-radius:20px;padding:20px 24px;font-size:25px;color:#19181b;outline-offset:3px}.welcome-fieldset{border:0;padding:0;margin:28px 0 12px}.welcome-fieldset legend{margin-bottom:14px;color:#67616d}.welcome-grades{display:grid;grid-template-columns:1fr 1fr;gap:16px}.welcome-grades button{border:1px solid #e0dce4;border-radius:22px;background:#fff;display:flex;align-items:baseline;padding:22px;gap:10px;cursor:pointer}.welcome-grades strong{font-size:42px;font-weight:500}.welcome-grades svg{margin-left:auto}.welcome-grades button[aria-pressed=true]{background:#e3daf0;border-color:#a490bb}.welcome-small{font-size:13px;color:#7b7480;line-height:1.6}.welcome-actions{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-top:28px}.welcome-actions>.welcome-primary{margin-left:auto;min-width:220px}.welcome-back{width:54px;height:54px;border:1px solid #ded9e3;border-radius:50%;display:grid;place-items:center;background:#fff;cursor:pointer}.welcome-back:disabled{opacity:.3}.welcome-interests{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.welcome-interests button{position:relative;border:1px solid #e2dce5;border-radius:22px;background:#fff;min-height:155px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;cursor:pointer;padding:12px}.welcome-interests img{height:80px;width:100%;object-fit:contain;transition:transform .3s}.welcome-interests button:hover img{transform:translateY(-5px) rotate(-5deg)}.welcome-interests button[aria-pressed=true]{background:#e8f5c7;border-color:#94ad5c}.welcome-interests button>svg{position:absolute;right:12px;top:12px}.welcome-interests span{font-size:14px}.welcome-goals{display:grid;gap:12px}.welcome-goals button{display:flex;align-items:center;justify-content:space-between;gap:16px;background:#fff;border:1px solid #e2dce5;padding:18px 22px;border-radius:20px;text-align:left;cursor:pointer}.welcome-goals button[aria-pressed=true]{background:#ece5f5;border-color:#aa97bd}.welcome-goals strong,.welcome-goals small{display:block}.welcome-goals strong{font-weight:600;margin-bottom:5px}.welcome-goals small{line-height:1.5;color:#76707e}.choice-ring{border:1px solid #c6bdcc;width:16px;height:16px;border-radius:50%;flex-shrink:0}.welcome-minutes{display:flex;gap:10px}.welcome-minutes button{flex:1;border:1px solid #ddd7e3;background:#fff;padding:14px 10px;border-radius:15px;cursor:pointer}.welcome-minutes button[aria-pressed=true]{background:#1b191e;color:#fff;border-color:#1b191e}.welcome-diagnostic{display:grid;gap:20px}.welcome-diagnostic fieldset{padding:0;border:0;margin:0}.welcome-diagnostic legend{font-size:18px;line-height:1.5;margin-bottom:12px}.welcome-diagnostic fieldset>div{display:flex;gap:10px;flex-wrap:wrap}.welcome-diagnostic button{background:#fff;border:1px solid #dfd7e5;padding:12px 16px;border-radius:14px;display:flex;align-items:center;gap:10px;cursor:pointer}.welcome-diagnostic button[aria-pressed=true]{background:#e0eecd;border-color:#9bae7c}.welcome-route{padding:24px;background:#fff;border:1px solid #e3dce8;border-radius:26px;display:flex;gap:20px}.route-marker{width:54px;height:54px;border-radius:18px;background:#e6d9f6;display:grid;place-items:center;flex-shrink:0;font-size:26px}.welcome-route small{letter-spacing:1.5px;font-size:10px;color:#84778b}.welcome-route h2{font-size:25px;letter-spacing:-.5px;margin:10px 0}.welcome-route p{color:#7b7183;line-height:1.5;margin:0}.welcome-route-stops{display:flex;align-items:center;gap:10px;margin:25px 0;color:#73677c;font-size:13px}.welcome-route-stops i{flex:1;height:1px;background:#cfc4d9}.welcome-footer{text-align:center;color:#948b9c;font-size:13px;padding:20px}.welcome-error{color:#9b362c;line-height:1.5}.guide-layout{display:grid;grid-template-columns:1.25fr 1fr;gap:5vw;max-width:1300px;margin:70px auto;align-items:center}.guide-demo{position:relative;min-height:480px;background:#e9e2f2;border:1px solid #ddd1e8;border-radius:32px;padding:26px;box-shadow:0 30px 60px #7b658317;animation:welcome-enter .5s ease}.guide-demo-label{position:absolute;top:-28px;font-size:10px;letter-spacing:2px;color:#8d8197}.guide-mini-chrome{display:flex;align-items:center;gap:5px;border-bottom:1px solid #c7bad644;padding-bottom:20px}.guide-mini-chrome i{width:7px;height:7px;background:#b9a9c7;border-radius:50%}.guide-mini-chrome span{margin-left:auto;font-size:12px;color:#8a7a98}.guide-subjects{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;align-items:center;min-height:380px}.guide-subjects button{background:#ffffffa6;border:1px solid #fff9;border-radius:20px;padding:20px 8px;cursor:pointer;display:grid;gap:12px;transition:transform .4s}.guide-subjects button:first-child{transform:translateY(-12px)}.guide-subjects img{width:100%;height:100px;object-fit:contain}.guide-subjects span{font-size:14px}.guide-subjects small{font-size:11px;color:#59712b}.demo-active .guide-subjects button:first-child{background:#e0f7ac;transform:translateY(-20px) scale(1.04)}.guide-fractions,.guide-sample-task,.guide-reward{min-height:370px;display:flex;flex-direction:column;justify-content:center;align-items:center;gap:20px}.guide-fraction-disc{width:180px;height:180px;border-radius:50%;overflow:hidden;display:grid;grid-template-columns:1fr 1fr;gap:4px;transition:transform 1.6s ease;background:#e9e2f2}.guide-fraction-disc span{background:#fcfafc}.guide-fraction-disc .filled{background:#c5e66e}.demo-active .guide-fraction-disc{transform:rotate(180deg)}.guide-fractions strong{font-size:26px;font-weight:500}.guide-demo button:not(.guide-subjects button){border:0;background:#211c28;color:#fff;border-radius:30px;padding:13px 22px;display:flex;align-items:center;gap:10px;cursor:pointer}.guide-sample-task h3,.guide-reward h3{font-size:26px;font-weight:500;margin:0;text-align:center}.guide-sample-task>small{letter-spacing:1px;font-size:10px;color:#8c7a9b}.guide-answer-field{background:#fff;padding:15px 60px;border-radius:14px;font-size:27px}.guide-success,.guide-hint{font-size:15px;background:#e3f3bd;color:#4b602d;border-radius:16px;padding:15px;margin:0;animation:welcome-enter .35s ease}.guide-hint{max-width:310px;line-height:1.5}.guide-sample-task>svg{color:#a181ba}.guide-reward>svg{color:#b8d956;filter:drop-shadow(0 12px 8px #87994d33);transition:transform .5s}.demo-active .guide-reward>svg{transform:rotate(20deg) scale(1.2)}.guide-reward>small{font-size:11px;color:#85748f;text-align:center}.guide-narrator{display:flex;align-items:center;gap:16px;margin:22px 0}.guide-narrator .welcome-orb{width:100px;height:100px}.guide-narrator .welcome-orb i{display:none}.guide-narrator strong,.guide-narrator span{display:block}.guide-narrator span{font-size:12px;color:#95899e;margin:7px 0}.guide-narrator button{display:flex;gap:8px;align-items:center;background:none;border:0;padding:6px 0;color:#6f4e8a;cursor:pointer}.guide-copy details{font-size:14px;color:#7c7285;line-height:1.65}.guide-copy summary{cursor:pointer}.guide-copy>p[role=status]{font-size:13px;color:#8e6f49}.guide-copy h1{font-size:46px}.welcome-shell button:focus-visible{outline:3px solid #7c5f99;outline-offset:4px}@keyframes welcome-float{50%{translate:0 -12px}}@keyframes welcome-speak{50%{scale:1.05;filter:drop-shadow(0 18px 25px #8e6fb344)}}@keyframes welcome-enter{0%{opacity:0;transform:translateY(18px)}to{opacity:1;transform:translateY(0)}}@media(max-width:900px){.welcome-shell{padding:22px 4vw}.welcome-layout{gap:26px;grid-template-columns:.8fr 1.2fr}.welcome-visual{min-height:500px}.welcome-orb{width:200px;height:200px}.welcome-orbit{min-height:310px}.welcome-meza-caption{padding:20px 24px 30px}.welcome-meza-caption p{font-size:18px}.welcome-content h1{font-size:38px}.welcome-interests{grid-template-columns:repeat(2,1fr)}.welcome-interests button{min-height:112px}.welcome-interests img{height:55px}.guide-layout{gap:25px;margin:45px auto;grid-template-columns:1fr 1fr}.guide-demo{padding:18px;min-height:420px}.guide-subjects{gap:7px}.guide-subjects span{font-size:11px}.guide-copy h1{font-size:35px}}@media(max-width:650px){.welcome-header>div{font-size:22px}.welcome-layout,.guide-layout{grid-template-columns:1fr;gap:22px;min-height:0}.welcome-visual{min-height:0;padding:5px 15px;flex-direction:row;align-items:center;border-radius:26px}.welcome-orbit{min-height:140px;width:135px;flex-shrink:0}.welcome-orb{width:130px;height:130px}.welcome-float{display:none}.welcome-meza-caption{padding:15px}.welcome-meza-caption p{font-size:14px;margin-top:8px}.welcome-meza-caption>span{font-size:8px;letter-spacing:1px}.welcome-orb i{display:none}.welcome-content h1{font-size:37px}.welcome-step-0 .welcome-visual{min-height:230px;flex-direction:column}.welcome-step-0 .welcome-meza-caption{display:none}.welcome-step-0 .welcome-orb{width:220px;height:220px}.welcome-step-0 .welcome-orbit{height:230px;width:100%}.welcome-interests{grid-template-columns:repeat(3,1fr)}.welcome-interests span{font-size:12px}.welcome-content .eyebrow{font-size:9px}.welcome-lead{font-size:16px}.welcome-progress{margin:22px auto}.welcome-footer{padding:20px 0}.guide-layout{margin:45px auto 20px}.guide-demo{min-height:300px}.guide-fractions,.guide-sample-task,.guide-reward,.guide-subjects{min-height:270px}.guide-fraction-disc{width:125px;height:125px}.guide-copy h1{font-size:35px}}@media(prefers-reduced-motion:reduce){.welcome-shell *{animation:none!important;transition:none!important}}html[data-motion=reduced] .welcome-shell *{animation:none!important;transition:none!important}.welcome-layout{grid-template-columns:minmax(0,1fr) minmax(0,1.12fr)}.guide-layout{grid-template-columns:minmax(0,1.25fr) minmax(0,1fr)}.welcome-content,.guide-copy,.guide-demo{min-width:0}.guide-copy h1{font-size:clamp(32px,3.55vw,46px);overflow-wrap:anywhere}.guide-copy .welcome-lead{max-width:100%}.guide-narrator .welcome-orb{flex-shrink:0}@media(max-width:900px){.welcome-layout{grid-template-columns:minmax(0,.8fr) minmax(0,1.2fr)}.guide-layout{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}}@media(max-width:650px){.welcome-layout,.guide-layout{grid-template-columns:minmax(0,1fr)}}.password-shell{min-height:100dvh;background:#f6f5f1;padding:30px 5vw;color:#211d27;box-sizing:border-box}.password-shell header{display:flex;justify-content:space-between;align-items:center;max-width:1120px;margin:auto}.password-shell header strong{font-size:26px;letter-spacing:-1px}.password-shell header strong span{font-weight:400}.password-shell header button{border:0;background:none;padding:15px;font:inherit;cursor:pointer}.password-card{max-width:1080px;margin:50px auto;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.2fr);gap:55px;align-items:center}.password-card aside{display:flex;flex-direction:column;align-items:center;justify-content:center;background:#e9e1f1;border-radius:36px;min-height:560px}.password-card aside p{font-size:28px;line-height:1.4;text-align:center;margin-top:45px}.password-card h1{font-size:38px;line-height:1.1;letter-spacing:-1px;margin:18px 0}.password-card form>p{color:#716879;line-height:1.6}.password-card .eyebrow{display:flex;align-items:center;gap:8px}.password-identity{background:#e8efdb;border-radius:14px;padding:12px 18px;margin:20px 0}.password-card label{display:grid;gap:8px;font-size:14px;margin:16px 0 8px}.password-card input{padding:14px 18px;border:1px solid #dcd3e5;background:#fff;border-radius:14px;font:inherit;font-size:18px;min-width:0}.password-card small{font-size:12px;color:#7a7080;line-height:1.5;display:block}.password-toggle,.password-logout{display:flex;align-items:center;justify-content:center;gap:9px;padding:12px 0;background:none;border:0;font:inherit;font-size:13px;color:#796187;cursor:pointer}.password-card .welcome-primary{width:100%;margin:10px 0}.password-card .form-error{color:#a13836}.password-card .password-logout{margin:auto}.password-shell button:focus-visible,.password-shell input:focus-visible{outline:3px solid #9e84b4;outline-offset:3px}@media(max-width:800px){.password-card{gap:25px}.password-card aside{min-height:440px}.password-card .welcome-orb{width:190px;height:190px}.password-card h1{font-size:30px}}@media(max-width:600px){.password-card{grid-template-columns:minmax(0,1fr);margin:30px auto}.password-card aside{display:none}}@media(prefers-reduced-motion:reduce){.password-shell *{animation:none!important;transition:none!important}}html[data-motion=reduced] .password-shell *{animation:none!important;transition:none!important}@font-face{font-display:block;font-family:KaTeX_AMS;font-style:normal;font-weight:400;src:url(/assets/KaTeX_AMS-Regular-BQhdFMY1.woff2) format("woff2"),url(/assets/KaTeX_AMS-Regular-DMm9YOAa.woff) format("woff"),url(/assets/KaTeX_AMS-Regular-DRggAlZN.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Caligraphic;font-style:normal;font-weight:700;src:url(/assets/KaTeX_Caligraphic-Bold-Dq_IR9rO.woff2) format("woff2"),url(/assets/KaTeX_Caligraphic-Bold-BEiXGLvX.woff) format("woff"),url(/assets/KaTeX_Caligraphic-Bold-ATXxdsX0.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Caligraphic;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Caligraphic-Regular-Di6jR-x-.woff2) format("woff2"),url(/assets/KaTeX_Caligraphic-Regular-CTRA-rTL.woff) format("woff"),url(/assets/KaTeX_Caligraphic-Regular-wX97UBjC.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Fraktur;font-style:normal;font-weight:700;src:url(/assets/KaTeX_Fraktur-Bold-CL6g_b3V.woff2) format("woff2"),url(/assets/KaTeX_Fraktur-Bold-BsDP51OF.woff) format("woff"),url(/assets/KaTeX_Fraktur-Bold-BdnERNNW.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Fraktur;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Fraktur-Regular-CTYiF6lA.woff2) format("woff2"),url(/assets/KaTeX_Fraktur-Regular-Dxdc4cR9.woff) format("woff"),url(/assets/KaTeX_Fraktur-Regular-CB_wures.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:normal;font-weight:700;src:url(/assets/KaTeX_Main-Bold-Cx986IdX.woff2) format("woff2"),url(/assets/KaTeX_Main-Bold-Jm3AIy58.woff) format("woff"),url(/assets/KaTeX_Main-Bold-waoOVXN0.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:italic;font-weight:700;src:url(/assets/KaTeX_Main-BoldItalic-DxDJ3AOS.woff2) format("woff2"),url(/assets/KaTeX_Main-BoldItalic-SpSLRI95.woff) format("woff"),url(/assets/KaTeX_Main-BoldItalic-DzxPMmG6.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:italic;font-weight:400;src:url(/assets/KaTeX_Main-Italic-NWA7e6Wa.woff2) format("woff2"),url(/assets/KaTeX_Main-Italic-BMLOBm91.woff) format("woff"),url(/assets/KaTeX_Main-Italic-3WenGoN9.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Main-Regular-B22Nviop.woff2) format("woff2"),url(/assets/KaTeX_Main-Regular-Dr94JaBh.woff) format("woff"),url(/assets/KaTeX_Main-Regular-ypZvNtVU.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Math;font-style:italic;font-weight:700;src:url(/assets/KaTeX_Math-BoldItalic-CZnvNsCZ.woff2) format("woff2"),url(/assets/KaTeX_Math-BoldItalic-iY-2wyZ7.woff) format("woff"),url(/assets/KaTeX_Math-BoldItalic-B3XSjfu4.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Math;font-style:italic;font-weight:400;src:url(/assets/KaTeX_Math-Italic-t53AETM-.woff2) format("woff2"),url(/assets/KaTeX_Math-Italic-DA0__PXp.woff) format("woff"),url(/assets/KaTeX_Math-Italic-flOr_0UB.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:normal;font-weight:700;src:url(/assets/KaTeX_SansSerif-Bold-D1sUS0GD.woff2) format("woff2"),url(/assets/KaTeX_SansSerif-Bold-DbIhKOiC.woff) format("woff"),url(/assets/KaTeX_SansSerif-Bold-CFMepnvq.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:italic;font-weight:400;src:url(/assets/KaTeX_SansSerif-Italic-C3H0VqGB.woff2) format("woff2"),url(/assets/KaTeX_SansSerif-Italic-DN2j7dab.woff) format("woff"),url(/assets/KaTeX_SansSerif-Italic-YYjJ1zSn.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:normal;font-weight:400;src:url(/assets/KaTeX_SansSerif-Regular-DDBCnlJ7.woff2) format("woff2"),url(/assets/KaTeX_SansSerif-Regular-CS6fqUqJ.woff) format("woff"),url(/assets/KaTeX_SansSerif-Regular-BNo7hRIc.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Script;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Script-Regular-D3wIWfF6.woff2) format("woff2"),url(/assets/KaTeX_Script-Regular-D5yQViql.woff) format("woff"),url(/assets/KaTeX_Script-Regular-C5JkGWo-.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size1;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Size1-Regular-mCD8mA8B.woff2) format("woff2"),url(/assets/KaTeX_Size1-Regular-C195tn64.woff) format("woff"),url(/assets/KaTeX_Size1-Regular-Dbsnue_I.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size2;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Size2-Regular-Dy4dx90m.woff2) format("woff2"),url(/assets/KaTeX_Size2-Regular-oD1tc_U0.woff) format("woff"),url(/assets/KaTeX_Size2-Regular-B7gKUWhC.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size3;font-style:normal;font-weight:400;src:url(data:font/woff2;base64,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) format("woff2"),url(/assets/KaTeX_Size3-Regular-CTq5MqoE.woff) format("woff"),url(/assets/KaTeX_Size3-Regular-DgpXs0kz.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size4;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Size4-Regular-Dl5lxZxV.woff2) format("woff2"),url(/assets/KaTeX_Size4-Regular-BF-4gkZK.woff) format("woff"),url(/assets/KaTeX_Size4-Regular-DWFBv043.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Typewriter;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Typewriter-Regular-CO6r4hn1.woff2) format("woff2"),url(/assets/KaTeX_Typewriter-Regular-C0xS9mPB.woff) format("woff"),url(/assets/KaTeX_Typewriter-Regular-D3Ib7_Hf.ttf) format("truetype")}.katex{font: 1.21em KaTeX_Main,math,Times New Roman,serif;line-height:1.2;position:relative;text-indent:0;text-rendering:auto}.katex *{-ms-high-contrast-adjust:none!important;border-color:currentColor}.katex .katex-version:after{content:"0.19.1"}.katex .katex-mathml{border:0;-webkit-clip-path:inset(50%);clip-path:inset(50%);height:1px;overflow:hidden;padding:0;position:absolute;width:1px}.katex .katex-html>.katex-newline{display:block}.katex .katex-base{position:relative;white-space:nowrap;width:-webkit-min-content;width:-moz-min-content;width:min-content}.katex .katex-base,.katex .katex-strut{display:inline-block}.katex .textbf{font-weight:700}.katex .textit{font-style:italic}.katex .textrm{font-family:KaTeX_Main}.katex .textsf{font-family:KaTeX_SansSerif}.katex .texttt{font-family:KaTeX_Typewriter}.katex .mathnormal{font-family:KaTeX_Math;font-style:italic}.katex .mathit{font-family:KaTeX_Main;font-style:italic}.katex .mathrm{font-style:normal}.katex .mathbf{font-family:KaTeX_Main;font-weight:700}.katex .boldsymbol{font-family:KaTeX_Math;font-style:italic;font-weight:700}.katex .amsrm,.katex .mathbb,.katex .textbb{font-family:KaTeX_AMS}.katex .mathcal{font-family:KaTeX_Caligraphic}.katex .mathfrak,.katex .textfrak{font-family:KaTeX_Fraktur}.katex .mathboldfrak,.katex .textboldfrak{font-family:KaTeX_Fraktur;font-weight:700}.katex .mathtt{font-family:KaTeX_Typewriter}.katex .mathscr,.katex .textscr{font-family:KaTeX_Script}.katex .mathsf,.katex .textsf{font-family:KaTeX_SansSerif}.katex .mathboldsf,.katex .textboldsf{font-family:KaTeX_SansSerif;font-weight:700}.katex .mathitsf,.katex .mathsfit,.katex .textitsf{font-family:KaTeX_SansSerif;font-style:italic}.katex .mainrm{font-family:KaTeX_Main;font-style:normal}.katex .vlist-t{border-collapse:collapse;display:inline-table;table-layout:fixed}.katex .vlist-r{display:table-row}.katex .vlist{display:table-cell;position:relative;vertical-align:bottom}.katex .vlist>span{display:block;height:0;position:relative}.katex .vlist>span>span{display:inline-block}.katex .vlist>span>.pstrut{overflow:hidden;width:0}.katex .vlist-t2{margin-right:-2px}.katex .vlist-s{display:table-cell;font-size:1px;min-width:2px;vertical-align:bottom;width:2px}.katex .katex-vbox{align-items:baseline;display:inline-flex;flex-direction:column}.katex .katex-thinbox{display:inline-flex;flex-direction:row;max-width:0;width:0}.katex .msupsub{text-align:left}.katex .mfrac>span>span{text-align:center}.katex .mfrac .frac-line{border-bottom-style:solid;display:inline-block;width:100%}.katex .katex-hdashline,.katex .katex-hline,.katex .katex-overline .overline-line,.katex .katex-rule,.katex .katex-underline .underline-line,.katex .mfrac .frac-line{min-height:1px}.katex .mspace{display:inline-block}.katex .katex-smash{display:inline;line-height:0}.katex .clap,.katex .llap,.katex .rlap{position:relative;width:0}.katex .clap>.katex-inner,.katex .llap>.katex-inner,.katex .rlap>.katex-inner{position:absolute}.katex .clap>.katex-fix,.katex .llap>.katex-fix,.katex .rlap>.katex-fix{display:inline-block}.katex .llap>.katex-inner{right:0}.katex .clap>.katex-inner,.katex .rlap>.katex-inner{left:0}.katex .clap>.katex-inner>span{margin-left:-50%;margin-right:50%}.katex .katex-rule{border:0 solid;display:inline-block;position:relative}.katex .katex-hline,.katex .katex-overline .overline-line,.katex .katex-underline .underline-line{border-bottom-style:solid;display:inline-block;width:100%}.katex .katex-hdashline{border-bottom-style:dashed;display:inline-block;width:100%}.katex .sqrt>.katex-root{margin-left:.2777777778em;margin-right:-.5555555556em}.katex .fontsize-ensurer.reset-size1.size1,.katex .katex-sizing.reset-size1.size1{font-size:1em}.katex .fontsize-ensurer.reset-size1.size2,.katex .katex-sizing.reset-size1.size2{font-size:1.2em}.katex .fontsize-ensurer.reset-size1.size3,.katex .katex-sizing.reset-size1.size3{font-size:1.4em}.katex .fontsize-ensurer.reset-size1.size4,.katex .katex-sizing.reset-size1.size4{font-size:1.6em}.katex .fontsize-ensurer.reset-size1.size5,.katex .katex-sizing.reset-size1.size5{font-size:1.8em}.katex .fontsize-ensurer.reset-size1.size6,.katex .katex-sizing.reset-size1.size6{font-size:2em}.katex .fontsize-ensurer.reset-size1.size7,.katex .katex-sizing.reset-size1.size7{font-size:2.4em}.katex .fontsize-ensurer.reset-size1.size8,.katex .katex-sizing.reset-size1.size8{font-size:2.88em}.katex .fontsize-ensurer.reset-size1.size9,.katex .katex-sizing.reset-size1.size9{font-size:3.456em}.katex .fontsize-ensurer.reset-size1.size10,.katex .katex-sizing.reset-size1.size10{font-size:4.148em}.katex .fontsize-ensurer.reset-size1.size11,.katex .katex-sizing.reset-size1.size11{font-size:4.976em}.katex .fontsize-ensurer.reset-size2.size1,.katex .katex-sizing.reset-size2.size1{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size2.size2,.katex .katex-sizing.reset-size2.size2{font-size:1em}.katex .fontsize-ensurer.reset-size2.size3,.katex .katex-sizing.reset-size2.size3{font-size:1.1666666667em}.katex .fontsize-ensurer.reset-size2.size4,.katex .katex-sizing.reset-size2.size4{font-size:1.3333333333em}.katex .fontsize-ensurer.reset-size2.size5,.katex .katex-sizing.reset-size2.size5{font-size:1.5em}.katex .fontsize-ensurer.reset-size2.size6,.katex .katex-sizing.reset-size2.size6{font-size:1.6666666667em}.katex .fontsize-ensurer.reset-size2.size7,.katex .katex-sizing.reset-size2.size7{font-size:2em}.katex .fontsize-ensurer.reset-size2.size8,.katex .katex-sizing.reset-size2.size8{font-size:2.4em}.katex .fontsize-ensurer.reset-size2.size9,.katex .katex-sizing.reset-size2.size9{font-size:2.88em}.katex .fontsize-ensurer.reset-size2.size10,.katex .katex-sizing.reset-size2.size10{font-size:3.4566666667em}.katex .fontsize-ensurer.reset-size2.size11,.katex .katex-sizing.reset-size2.size11{font-size:4.1466666667em}.katex .fontsize-ensurer.reset-size3.size1,.katex .katex-sizing.reset-size3.size1{font-size:.7142857143em}.katex .fontsize-ensurer.reset-size3.size2,.katex .katex-sizing.reset-size3.size2{font-size:.8571428571em}.katex .fontsize-ensurer.reset-size3.size3,.katex .katex-sizing.reset-size3.size3{font-size:1em}.katex .fontsize-ensurer.reset-size3.size4,.katex .katex-sizing.reset-size3.size4{font-size:1.1428571429em}.katex .fontsize-ensurer.reset-size3.size5,.katex .katex-sizing.reset-size3.size5{font-size:1.2857142857em}.katex .fontsize-ensurer.reset-size3.size6,.katex .katex-sizing.reset-size3.size6{font-size:1.4285714286em}.katex .fontsize-ensurer.reset-size3.size7,.katex .katex-sizing.reset-size3.size7{font-size:1.7142857143em}.katex .fontsize-ensurer.reset-size3.size8,.katex .katex-sizing.reset-size3.size8{font-size:2.0571428571em}.katex .fontsize-ensurer.reset-size3.size9,.katex .katex-sizing.reset-size3.size9{font-size:2.4685714286em}.katex .fontsize-ensurer.reset-size3.size10,.katex .katex-sizing.reset-size3.size10{font-size:2.9628571429em}.katex .fontsize-ensurer.reset-size3.size11,.katex .katex-sizing.reset-size3.size11{font-size:3.5542857143em}.katex .fontsize-ensurer.reset-size4.size1,.katex .katex-sizing.reset-size4.size1{font-size:.625em}.katex .fontsize-ensurer.reset-size4.size2,.katex .katex-sizing.reset-size4.size2{font-size:.75em}.katex .fontsize-ensurer.reset-size4.size3,.katex .katex-sizing.reset-size4.size3{font-size:.875em}.katex .fontsize-ensurer.reset-size4.size4,.katex .katex-sizing.reset-size4.size4{font-size:1em}.katex .fontsize-ensurer.reset-size4.size5,.katex .katex-sizing.reset-size4.size5{font-size:1.125em}.katex .fontsize-ensurer.reset-size4.size6,.katex .katex-sizing.reset-size4.size6{font-size:1.25em}.katex .fontsize-ensurer.reset-size4.size7,.katex .katex-sizing.reset-size4.size7{font-size:1.5em}.katex .fontsize-ensurer.reset-size4.size8,.katex .katex-sizing.reset-size4.size8{font-size:1.8em}.katex .fontsize-ensurer.reset-size4.size9,.katex .katex-sizing.reset-size4.size9{font-size:2.16em}.katex .fontsize-ensurer.reset-size4.size10,.katex .katex-sizing.reset-size4.size10{font-size:2.5925em}.katex .fontsize-ensurer.reset-size4.size11,.katex .katex-sizing.reset-size4.size11{font-size:3.11em}.katex .fontsize-ensurer.reset-size5.size1,.katex .katex-sizing.reset-size5.size1{font-size:.5555555556em}.katex .fontsize-ensurer.reset-size5.size2,.katex .katex-sizing.reset-size5.size2{font-size:.6666666667em}.katex .fontsize-ensurer.reset-size5.size3,.katex .katex-sizing.reset-size5.size3{font-size:.7777777778em}.katex .fontsize-ensurer.reset-size5.size4,.katex .katex-sizing.reset-size5.size4{font-size:.8888888889em}.katex .fontsize-ensurer.reset-size5.size5,.katex .katex-sizing.reset-size5.size5{font-size:1em}.katex .fontsize-ensurer.reset-size5.size6,.katex .katex-sizing.reset-size5.size6{font-size:1.1111111111em}.katex .fontsize-ensurer.reset-size5.size7,.katex .katex-sizing.reset-size5.size7{font-size:1.3333333333em}.katex .fontsize-ensurer.reset-size5.size8,.katex .katex-sizing.reset-size5.size8{font-size:1.6em}.katex .fontsize-ensurer.reset-size5.size9,.katex .katex-sizing.reset-size5.size9{font-size:1.92em}.katex .fontsize-ensurer.reset-size5.size10,.katex .katex-sizing.reset-size5.size10{font-size:2.3044444444em}.katex .fontsize-ensurer.reset-size5.size11,.katex .katex-sizing.reset-size5.size11{font-size:2.7644444444em}.katex .fontsize-ensurer.reset-size6.size1,.katex .katex-sizing.reset-size6.size1{font-size:.5em}.katex .fontsize-ensurer.reset-size6.size2,.katex .katex-sizing.reset-size6.size2{font-size:.6em}.katex .fontsize-ensurer.reset-size6.size3,.katex .katex-sizing.reset-size6.size3{font-size:.7em}.katex .fontsize-ensurer.reset-size6.size4,.katex .katex-sizing.reset-size6.size4{font-size:.8em}.katex .fontsize-ensurer.reset-size6.size5,.katex .katex-sizing.reset-size6.size5{font-size:.9em}.katex .fontsize-ensurer.reset-size6.size6,.katex .katex-sizing.reset-size6.size6{font-size:1em}.katex .fontsize-ensurer.reset-size6.size7,.katex .katex-sizing.reset-size6.size7{font-size:1.2em}.katex .fontsize-ensurer.reset-size6.size8,.katex .katex-sizing.reset-size6.size8{font-size:1.44em}.katex .fontsize-ensurer.reset-size6.size9,.katex .katex-sizing.reset-size6.size9{font-size:1.728em}.katex .fontsize-ensurer.reset-size6.size10,.katex .katex-sizing.reset-size6.size10{font-size:2.074em}.katex .fontsize-ensurer.reset-size6.size11,.katex .katex-sizing.reset-size6.size11{font-size:2.488em}.katex .fontsize-ensurer.reset-size7.size1,.katex .katex-sizing.reset-size7.size1{font-size:.4166666667em}.katex .fontsize-ensurer.reset-size7.size2,.katex .katex-sizing.reset-size7.size2{font-size:.5em}.katex .fontsize-ensurer.reset-size7.size3,.katex .katex-sizing.reset-size7.size3{font-size:.5833333333em}.katex .fontsize-ensurer.reset-size7.size4,.katex .katex-sizing.reset-size7.size4{font-size:.6666666667em}.katex .fontsize-ensurer.reset-size7.size5,.katex .katex-sizing.reset-size7.size5{font-size:.75em}.katex .fontsize-ensurer.reset-size7.size6,.katex .katex-sizing.reset-size7.size6{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size7.size7,.katex .katex-sizing.reset-size7.size7{font-size:1em}.katex .fontsize-ensurer.reset-size7.size8,.katex .katex-sizing.reset-size7.size8{font-size:1.2em}.katex .fontsize-ensurer.reset-size7.size9,.katex .katex-sizing.reset-size7.size9{font-size:1.44em}.katex .fontsize-ensurer.reset-size7.size10,.katex .katex-sizing.reset-size7.size10{font-size:1.7283333333em}.katex .fontsize-ensurer.reset-size7.size11,.katex .katex-sizing.reset-size7.size11{font-size:2.0733333333em}.katex .fontsize-ensurer.reset-size8.size1,.katex .katex-sizing.reset-size8.size1{font-size:.3472222222em}.katex .fontsize-ensurer.reset-size8.size2,.katex .katex-sizing.reset-size8.size2{font-size:.4166666667em}.katex .fontsize-ensurer.reset-size8.size3,.katex .katex-sizing.reset-size8.size3{font-size:.4861111111em}.katex .fontsize-ensurer.reset-size8.size4,.katex .katex-sizing.reset-size8.size4{font-size:.5555555556em}.katex .fontsize-ensurer.reset-size8.size5,.katex .katex-sizing.reset-size8.size5{font-size:.625em}.katex .fontsize-ensurer.reset-size8.size6,.katex .katex-sizing.reset-size8.size6{font-size:.6944444444em}.katex .fontsize-ensurer.reset-size8.size7,.katex .katex-sizing.reset-size8.size7{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size8.size8,.katex .katex-sizing.reset-size8.size8{font-size:1em}.katex .fontsize-ensurer.reset-size8.size9,.katex .katex-sizing.reset-size8.size9{font-size:1.2em}.katex .fontsize-ensurer.reset-size8.size10,.katex .katex-sizing.reset-size8.size10{font-size:1.4402777778em}.katex .fontsize-ensurer.reset-size8.size11,.katex .katex-sizing.reset-size8.size11{font-size:1.7277777778em}.katex .fontsize-ensurer.reset-size9.size1,.katex .katex-sizing.reset-size9.size1{font-size:.2893518519em}.katex .fontsize-ensurer.reset-size9.size2,.katex .katex-sizing.reset-size9.size2{font-size:.3472222222em}.katex .fontsize-ensurer.reset-size9.size3,.katex .katex-sizing.reset-size9.size3{font-size:.4050925926em}.katex .fontsize-ensurer.reset-size9.size4,.katex .katex-sizing.reset-size9.size4{font-size:.462962963em}.katex .fontsize-ensurer.reset-size9.size5,.katex .katex-sizing.reset-size9.size5{font-size:.5208333333em}.katex .fontsize-ensurer.reset-size9.size6,.katex .katex-sizing.reset-size9.size6{font-size:.5787037037em}.katex .fontsize-ensurer.reset-size9.size7,.katex .katex-sizing.reset-size9.size7{font-size:.6944444444em}.katex .fontsize-ensurer.reset-size9.size8,.katex .katex-sizing.reset-size9.size8{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size9.size9,.katex .katex-sizing.reset-size9.size9{font-size:1em}.katex .fontsize-ensurer.reset-size9.size10,.katex .katex-sizing.reset-size9.size10{font-size:1.2002314815em}.katex .fontsize-ensurer.reset-size9.size11,.katex .katex-sizing.reset-size9.size11{font-size:1.4398148148em}.katex .fontsize-ensurer.reset-size10.size1,.katex .katex-sizing.reset-size10.size1{font-size:.2410800386em}.katex .fontsize-ensurer.reset-size10.size2,.katex .katex-sizing.reset-size10.size2{font-size:.2892960463em}.katex .fontsize-ensurer.reset-size10.size3,.katex .katex-sizing.reset-size10.size3{font-size:.337512054em}.katex .fontsize-ensurer.reset-size10.size4,.katex .katex-sizing.reset-size10.size4{font-size:.3857280617em}.katex .fontsize-ensurer.reset-size10.size5,.katex .katex-sizing.reset-size10.size5{font-size:.4339440694em}.katex .fontsize-ensurer.reset-size10.size6,.katex .katex-sizing.reset-size10.size6{font-size:.4821600771em}.katex .fontsize-ensurer.reset-size10.size7,.katex .katex-sizing.reset-size10.size7{font-size:.5785920926em}.katex .fontsize-ensurer.reset-size10.size8,.katex .katex-sizing.reset-size10.size8{font-size:.6943105111em}.katex .fontsize-ensurer.reset-size10.size9,.katex .katex-sizing.reset-size10.size9{font-size:.8331726133em}.katex .fontsize-ensurer.reset-size10.size10,.katex .katex-sizing.reset-size10.size10{font-size:1em}.katex .fontsize-ensurer.reset-size10.size11,.katex .katex-sizing.reset-size10.size11{font-size:1.1996142719em}.katex .fontsize-ensurer.reset-size11.size1,.katex .katex-sizing.reset-size11.size1{font-size:.2009646302em}.katex .fontsize-ensurer.reset-size11.size2,.katex .katex-sizing.reset-size11.size2{font-size:.2411575563em}.katex .fontsize-ensurer.reset-size11.size3,.katex .katex-sizing.reset-size11.size3{font-size:.2813504823em}.katex .fontsize-ensurer.reset-size11.size4,.katex .katex-sizing.reset-size11.size4{font-size:.3215434084em}.katex .fontsize-ensurer.reset-size11.size5,.katex .katex-sizing.reset-size11.size5{font-size:.3617363344em}.katex .fontsize-ensurer.reset-size11.size6,.katex .katex-sizing.reset-size11.size6{font-size:.4019292605em}.katex .fontsize-ensurer.reset-size11.size7,.katex .katex-sizing.reset-size11.size7{font-size:.4823151125em}.katex .fontsize-ensurer.reset-size11.size8,.katex .katex-sizing.reset-size11.size8{font-size:.578778135em}.katex .fontsize-ensurer.reset-size11.size9,.katex .katex-sizing.reset-size11.size9{font-size:.6945337621em}.katex .fontsize-ensurer.reset-size11.size10,.katex .katex-sizing.reset-size11.size10{font-size:.8336012862em}.katex .fontsize-ensurer.reset-size11.size11,.katex .katex-sizing.reset-size11.size11{font-size:1em}.katex .delimsizing.size1{font-family:KaTeX_Size1}.katex .delimsizing.size2{font-family:KaTeX_Size2}.katex .delimsizing.size3{font-family:KaTeX_Size3}.katex .delimsizing.size4{font-family:KaTeX_Size4}.katex .delimsizing.mult .delim-size1>span{font-family:KaTeX_Size1}.katex .delimsizing.mult .delim-size4>span{font-family:KaTeX_Size4}.katex .nulldelimiter{display:inline-block;width:.12em}.katex .delimcenter,.katex .op-symbol{position:relative}.katex .op-symbol.small-op{font-family:KaTeX_Size1}.katex .op-symbol.large-op{font-family:KaTeX_Size2}.katex .katex-accent>.vlist-t,.katex .op-limits>.vlist-t{text-align:center}.katex .katex-accent .accent-body{position:relative}.katex .katex-accent .accent-body:not(.accent-full){width:0}.katex .katex-overlay{display:block}.katex .mtable .vertical-separator{display:inline-block;min-width:1px}.katex .mtable .arraycolsep{display:inline-block}.katex .mtable .col-align-c>.vlist-t{text-align:center}.katex .mtable .col-align-l>.vlist-t{text-align:left}.katex .mtable .col-align-r>.vlist-t{text-align:right}.katex .svg-align{text-align:left}.katex svg{fill:currentColor;stroke:currentColor;display:block;height:inherit;position:absolute;width:100%}.katex svg path{stroke:none}.katex svg{fill-rule:nonzero;fill-opacity:1;stroke-width:1;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1}.katex img{border-style:none;max-height:none;max-width:none;min-height:0;min-width:0}.katex .katex-stretchy{display:block;overflow:hidden;position:relative;width:100%}.katex .katex-stretchy:after,.katex .katex-stretchy:before{content:""}.katex .hide-tail{overflow:hidden;position:relative;width:100%}.katex .halfarrow-left{left:0;overflow:hidden;position:absolute;width:50.2%}.katex .halfarrow-right{overflow:hidden;position:absolute;right:0;width:50.2%}.katex .brace-left{left:0;overflow:hidden;position:absolute;width:25.1%}.katex .brace-center{left:25%;overflow:hidden;position:absolute;width:50%}.katex .brace-right{overflow:hidden;position:absolute;right:0;width:25.1%}.katex .x-arrow-pad{padding:0 .5em}.katex .cd-arrow-pad{padding:0 .55556em 0 .27778em}.katex .mover,.katex .munder,.katex .x-arrow{text-align:center}.katex .boxpad{padding:0 .3em}.katex .fbox,.katex .fcolorbox{border:.04em solid;box-sizing:border-box}.katex .cancel-pad{padding:0 .2em}.katex .cancel-lap{margin-left:-.2em;margin-right:-.2em}.katex .katex-sout{border-bottom-style:solid;border-bottom-width:.08em}.katex .angl{border-right:.049em solid;border-top:.049em solid;box-sizing:border-box;margin-right:.03889em}.katex .anglpad{padding:0 .03889em}.katex .reflectbox{display:inline-block;transform:scaleX(-1)}.katex .eqn-num:before{content:"(" counter(katexEqnNo) ")";counter-increment:katexEqnNo}.katex .mml-eqn-num:before{content:"(" counter(mmlEqnNo) ")";counter-increment:mmlEqnNo}.katex .mtr-glue{width:50%}.katex .cd-vert-arrow{display:inline-block;position:relative}.katex .cd-label-left{display:inline-block;position:absolute;right:calc(50% + .3em);text-align:left}.katex .cd-label-right{display:inline-block;left:calc(50% + .3em);position:absolute;text-align:right}.katex-display{display:block;margin:1em 0;text-align:center}.katex-display>.katex{display:block;text-align:center;white-space:nowrap}.katex-display>.katex>.katex-html{display:block;position:relative}.katex-display>.katex>.katex-html>.katex-tag{position:absolute;right:0}.katex-display.leqno>.katex>.katex-html>.katex-tag{left:0;right:auto}.katex-display.fleqn>.katex{padding-left:2em;text-align:left}body{counter-reset:katexEqnNo mmlEqnNo}.lesson-game{background:#f0edfa;border:1px solid #e1dbed;border-radius:26px;padding:24px;margin:24px 0;color:#252329}.game-top{display:flex;gap:24px;align-items:center;justify-content:space-between}.game-eyebrow{font-size:10px;font-weight:750;letter-spacing:.13em;color:#75618b}.lesson-game h3{font-size:25px;margin:8px 0!important}.game-top p,.game-free-note,.game-skill{font-size:12px;line-height:1.6;color:#67616e}.game-wallet{display:flex;align-items:center;gap:14px;background:#fff;border-radius:20px;padding:16px 20px;flex-shrink:0}.game-wallet>span{font-size:34px;color:#7a579e}.game-wallet strong{font-size:29px;display:block;line-height:1.2}.game-wallet small{font-size:10px;color:#716b78}.game-xp{border-left:1px solid #e8e2ee;padding-left:16px}.game-xp strong{font-size:24px}.game-milestones{display:flex;gap:6px;margin-top:20px}.game-milestones span{flex:1;border-top:4px solid #ddd5e9;padding-top:10px;font-size:11px;color:#72697d}.game-milestones .done{border-color:#9dbc53;color:#445c21}.game-offers{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:18px}.game-offers button{background:#fff;border:1px solid #e2dceb;border-radius:18px;padding:18px;text-align:left;cursor:pointer;display:flex;flex-direction:column;gap:10px;color:inherit;font:inherit}.game-offers button:hover{border-color:#9377ae;transform:translateY(-2px)}.game-offers strong{font-size:14px}.game-offers button>span:last-child{font-size:12px;color:#69567b}.offer-icon{display:grid;place-items:center;width:36px;height:36px;border-radius:12px;background:#e8f5c4;font-size:25px}.offer-icon.another-method{background:#dbedff}.offer-icon.orb-lavender{background:#f2ddfc}.game-free-note{margin-bottom:0}.game-message{font-size:14px;color:#4b6730;line-height:1.6}.game-result{background:#fff;border-radius:18px;padding:20px;margin-top:16px}.game-result>div{display:flex;align-items:center;justify-content:space-between}.game-result button{font:inherit;font-size:24px;border:0;background:transparent;cursor:pointer}.game-result p{white-space:pre-wrap;line-height:1.75;font-size:15px}.game-result small{color:#79717f;font-size:11px}.game-history{font-size:12px;margin-top:16px}.game-history summary{cursor:pointer}.game-history>div{display:flex;justify-content:space-between;gap:12px;padding:9px 0;border-bottom:1px solid #dfd7ea}.game-dialog{border:1px solid #ded6e8;border-radius:26px;padding:30px;max-width:480px;width:calc(100% - 40px);box-sizing:border-box;color:#27212f}.game-dialog::backdrop{background:#20152f77;-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px)}.game-dialog h3{font-size:28px}.game-dialog p{font-size:14px;line-height:1.6}.game-dialog textarea{display:block;box-sizing:border-box;width:100%;margin:10px 0;padding:12px;border:1px solid #d9d0e4;border-radius:12px;font:inherit}.game-price{display:flex;justify-content:space-between;background:#f1ecf8;border-radius:12px;padding:16px;margin:18px 0;font-size:15px}.game-dialog-actions{display:flex;justify-content:flex-end;gap:10px;margin:20px 0}.game-dialog small{color:#756b7c;line-height:1.5}.real-lesson.orb-lavender .orb{filter:drop-shadow(0 0 15px #ab73db99)}.game-reward{background:#e9f5ce;color:#425b1d;padding:14px 18px;border-radius:16px;font-size:14px;position:sticky;top:10px;z-index:2}@media(max-width:800px){.game-top{align-items:flex-start;flex-direction:column}.game-wallet{align-self:stretch}.game-offers{grid-template-columns:1fr}.game-offers button{flex-direction:row;align-items:center}.game-offers button>span:last-child{margin-left:auto}.game-milestones{flex-wrap:wrap}.lesson-game{padding:18px}}@media(prefers-reduced-motion:reduce){.game-offers button:hover{transform:none}}.textbook-exercises{margin-top:32px}.textbook-exercises>h3{font-size:26px;margin:10px 0}.textbook-exercises>p{color:#69666c;line-height:1.65}.textbook-coverage{display:flex;flex-direction:column;gap:10px;background:#f0ecd9;padding:22px;border-radius:22px}.textbook-coverage span{font-size:14px;line-height:1.5}.textbook-task{background:#fff;border:1px solid #e4e0e8;border-radius:24px;padding:24px;margin-top:18px}.textbook-task header{display:flex;align-items:center;justify-content:space-between;gap:12px}.textbook-task header>span{font-weight:750;font-size:22px}.textbook-task h4{font-size:18px;line-height:1.6}.textbook-part{display:flex;gap:16px;align-items:center;justify-content:space-between;margin:12px 0}.textbook-part input{width:140px;min-height:44px;border:1px solid #d7d1df;border-radius:12px;padding:10px;background:#faf9fc;color:#17141c}.textbook-reasoning{display:block;margin-top:18px;font-size:14px}.textbook-reasoning textarea{display:block;width:100%;box-sizing:border-box;border:1px solid #d7d1df;border-radius:14px;padding:14px;margin-top:8px;background:#faf9fc;color:#17141c;font:inherit}.textbook-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:15px}.textbook-reader{margin-top:18px;background:#fff;padding:12px;border-radius:20px}.textbook-reader nav{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:12px}.textbook-reader nav button{min-width:44px;min-height:44px;border:0;border-radius:50%;background:#efebf9}.textbook-reader input{width:65px;min-height:40px;border:1px solid #ddd;border-radius:10px;padding:6px;font:inherit}.textbook-reader img{display:block;width:100%;height:auto;border-radius:8px}.textbook-reader small{display:block;margin-top:10px;color:#716d76}.board-mode .textbook-part input{font-size:22px;min-height:58px}.board-mode .textbook-task{font-size:22px}.real-lesson{color:#20221d;max-width:1040px;margin:auto}.real-eyebrow,.real-section-number{font-size:11px;font-weight:700;letter-spacing:.12em;color:#77705e}.real-lesson>h2{font-size:clamp(32px,3.2vw,52px);margin:15px 0 10px;line-height:1.1;letter-spacing:-.04em}.real-lead{font-size:17px;line-height:1.6;color:#6b6e65;max-width:740px}.real-film{position:relative;margin-top:24px;border-radius:28px;overflow:hidden;background:#efe7f4;box-shadow:0 18px 50px #937ba51c}.real-film video{display:block;width:100%;aspect-ratio:16/9;object-fit:cover}.real-film-label{position:absolute;left:20px;top:18px;background:#fffdd8e8;color:#4e4b48;border-radius:99px;padding:8px 12px;font-size:11px;pointer-events:none}.real-meta{display:flex;justify-content:space-between;gap:20px;color:#7a7d73;font-size:12px;margin:12px 0 28px}.real-tutor{display:flex;align-items:center;gap:18px;background:#eff7db;border:1px solid #dceabb;border-radius:24px;padding:18px 20px}.real-tutor .orb{flex:none;width:86px;height:86px;margin:0}.real-tutor strong{font-size:23px}.real-tutor p{font-size:13px;color:#6f7d5d;line-height:1.5;margin:6px 0}.real-tutor-actions{margin-left:auto;display:flex;flex-wrap:wrap;gap:8px;justify-content:flex-end}.real-tutor-actions button{font-size:12px!important;white-space:nowrap}.real-meza-reply{margin:14px 0;padding:20px;background:#f7f4ff;border-radius:20px;white-space:pre-wrap;line-height:1.75;font-size:15px}.real-understand,.real-line-card,.real-practice,.real-open,.real-materials{margin-top:34px}.real-understand{display:grid;grid-template-columns:1fr 42%;gap:24px;align-items:center;border-radius:28px;background:#f4f0fb;padding:34px}.real-understand img{width:100%;border-radius:20px}.real-lesson h3{font-size:28px;line-height:1.2;letter-spacing:-.025em;margin:10px 0 18px}.real-understand p,.real-line-card p,.real-practice>p,.real-write p,.real-materials p{font-size:15px;line-height:1.7;color:#54594e}.real-line-card{background:#f6f9eb;border-radius:28px;padding:32px}.real-line{height:140px;position:relative;margin:25px 30px 4px}.real-line-track{position:absolute;left:0;right:0;top:57px;height:5px;background:#949a87;border-radius:4px}.real-tick{position:absolute;top:73px;transform:translate(-50%);font-size:16px;color:#717a68}.real-tick:before{content:"";position:absolute;width:3px;height:20px;top:-24px;left:50%;background:#949a87}.real-marker{position:absolute;top:14px;transform:translate(-50%);display:flex;flex-direction:column;align-items:center;gap:7px;transition:left .65s cubic-bezier(.2,.8,.2,1);color:#694d89;font-size:20px}.real-marker i{width:24px;height:24px;background:#ad81da;border:5px solid white;border-radius:50%;box-shadow:0 0 0 4px #ad81da;position:relative;top:28px}.real-marker b{order:-1}.real-point-buttons{display:flex;justify-content:center;gap:10px}.real-point-buttons button{border-radius:15px;padding:13px 22px;background:#fff;border:1px solid #d8dfcd;font:inherit;cursor:pointer}.real-point-buttons button.active{background:#d5f26d;border-color:#adcc51}.real-point-note{text-align:center;margin-bottom:0}.real-progress{font-size:13px;color:#718359;margin:18px 0}.real-task{border:1px solid #e2e6d8;border-radius:22px;padding:22px;margin:14px 0}.real-task-top{display:flex;align-items:start;gap:14px}.real-task-top span{font-size:10px;color:#8b8e82;min-width:72px;margin-top:4px}.real-task-top strong{font-size:18px;line-height:1.4}.real-choices{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:9px;margin:18px 0 0}.real-choices button{font:inherit;font-size:14px;text-align:left;padding:16px;border-radius:14px;border:1px solid #e0e5d9;background:#fafbf7;cursor:pointer;line-height:1.4}.real-choices button.correct{background:#e4f4c6;border-color:#9cbe60}.real-choices button.incorrect{background:#fff0e4;border-color:#e9b583}.real-task>p{display:flex;align-items:start;gap:8px;line-height:1.6;font-size:14px}.real-write{border:1px solid #e8e2ee;border-radius:22px;padding:24px;margin:16px 0}.real-write h4{font-size:20px;margin:0 0 8px}.real-write textarea{width:100%;border-radius:15px;border:1px solid #d9d6df;background:#fcfbff;padding:15px;font:inherit;resize:vertical;box-sizing:border-box;min-height:120px}.real-write>.subtle-button{margin-top:10px}.real-model{background:#f2eef8;border-radius:16px;padding:16px;margin-top:12px}.real-model ul{line-height:1.8;padding-left:20px}.real-materials{display:flex;gap:18px;padding:24px;background:#f6f7f3;border-radius:22px}.real-materials>svg{flex:none;color:#7b8b50;margin-top:8px}.real-materials h3{font-size:21px;margin:0 0 8px}.real-materials a{display:inline-flex;gap:6px;align-items:center;font-size:14px;color:#5f6c33;font-weight:700}.real-lesson>.year-note{margin:24px 0}@media(max-width:1000px){.real-tutor{flex-wrap:wrap}.real-tutor-actions{width:100%;justify-content:flex-start;margin-left:0}.real-choices,.real-understand{grid-template-columns:1fr}.real-understand img{max-height:260px;object-fit:cover}}@media(max-width:650px){.real-meta{flex-direction:column;gap:4px}.real-line-card,.real-understand{padding:22px}.real-task-top{flex-direction:column;gap:4px}.real-tutor .orb{width:62px;height:62px}.real-film-label{font-size:9px}.real-lesson h3{font-size:24px}}.exercise-bank,.native-textbook-lesson{max-width:1280px;margin:auto}.native-lesson-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,460px));gap:24px}.native-lesson-cards>button{padding:30px;text-align:left;border:0;background:#e9e0f9;border-radius:28px;color:#27232b;cursor:pointer}.native-lesson-cards h2{font-size:30px;line-height:1.15}.native-lesson-cards p{line-height:1.6}.native-lesson-cards strong{display:flex;align-items:center;gap:18px}.native-card-symbol{font-size:48px;letter-spacing:.05em;padding:45px 0;color:#6a5092}.native-textbook-lesson header{margin:32px 0}.native-textbook-lesson h1{font-size:clamp(32px,4vw,52px);line-height:1.1}.native-textbook-lesson h2{margin-top:40px}.native-textbook-lesson p{line-height:1.75}.prime-motion{display:grid;grid-template-columns:1fr 1.1fr;gap:34px;background:#e7def5;border-radius:30px;padding:32px}.prime-motion h2{margin-top:22px}.prime-grid{display:grid;grid-template-columns:repeat(10,1fr);gap:6px;align-self:center}.prime-grid>span{display:grid;place-items:center;aspect-ratio:1;background:#fff;border-radius:8px;font-size:clamp(11px,1.4vw,19px);transition:opacity .4s var(--delay),transform .4s var(--delay),background .4s}.prime-grid>span.removed{opacity:.22;transform:scale(.83);background:#aaa0bb;text-decoration:line-through}.prime-grid>span.prime{background:#deff86;box-shadow:0 2px 8px #a9ad7338}.prime-controls{display:flex;gap:8px;margin-top:24px}.prime-controls button{border:0;background:#fff8;border-radius:50%;width:42px;height:42px;display:grid;place-items:center}.prime-controls button[aria-pressed=true]{background:#151515;color:#fff}.native-meza{display:flex;align-items:center;gap:24px;margin:25px 0;padding:24px;background:#fff;border-radius:24px}.native-meza img{width:76px;animation:meza-breathe 4s ease-in-out infinite}.native-meza>div{flex:1}.native-meza h3,.native-meza p{margin:0}.native-meza .primary{flex-shrink:0}.native-explanations{display:grid;grid-template-columns:1fr 1fr;gap:18px}.native-explanations section{display:flex;gap:18px;padding:22px;background:#fff;border-radius:22px}.native-explanations span{color:#9d86ba;font-size:26px}.native-explanations p{margin:0}.native-prerequisite,.native-mistake{padding:22px;border-radius:20px;background:#f1edce}.native-example{padding:24px;border-left:4px solid #b3ca70;background:#f0f4e5;border-radius:0 20px 20px 0;margin:20px 0}.native-task{padding:28px;background:#fff;border-radius:26px;margin:22px 0;border:1px solid #e3dce8}.native-task>label{display:flex;flex-direction:column;gap:12px;margin:22px 0;line-height:1.7}.native-task input,.native-task textarea,.native-task select{font:inherit;width:100%;box-sizing:border-box;border:1px solid #d7ccdf;border-radius:13px;padding:13px;background:#faf8fc;color:#222}.native-task details{padding:15px;background:#f5f0e8;border-radius:12px}.native-task summary{cursor:pointer}.native-task-actions{display:flex;flex-wrap:wrap;gap:15px;margin-top:20px}.native-model{margin-top:22px;padding:20px;border-radius:16px;background:#eaf1dd;line-height:1.7}.native-check{padding:26px;border-radius:22px;background:#eee7f7;margin:18px 0}.native-check>div{display:flex;flex-wrap:wrap;gap:12px}.native-check button{padding:14px 18px;border:1px solid #d3c7df;border-radius:13px;background:#fff;font:inherit}.native-check button.correct{background:#ddf69a}.native-check button.incorrect{background:#fbe3d9}.native-source{margin:40px 0;color:#716778;font-size:13px}.board-mode .native-task,.board-mode .native-explanations{font-size:22px}@keyframes meza-breathe{50%{transform:translateY(-5px) scale(1.05)}}@media(max-width:900px){.prime-motion,.native-explanations{grid-template-columns:1fr}.native-meza{flex-wrap:wrap}.prime-grid{max-width:500px;width:100%;margin:auto}.native-meza .primary{margin-left:auto}}@media(prefers-reduced-motion:reduce){.prime-grid>span,.native-meza img{transition:none;animation:none}}html[data-motion=reduced] .prime-grid>span{transition:none}html[data-motion=reduced] .native-meza img{animation:none}.native-task-actions button{font-size:15px;min-height:44px}.native-task-actions .subtle-button,.native-task-actions .text-button{padding:12px 16px}.answer-saved{color:#496575;font-size:14px}.lesson-studio{max-width:1300px;margin:auto;color:#242127}.studio-topline{display:flex;gap:22px;align-items:center;flex-wrap:wrap;margin:0 0 22px;font-size:13px;color:#8a808f}.studio-topline>span{display:flex;align-items:center;gap:10px}.studio-topline i{width:3px;height:3px;background:#9c8aa6;border-radius:50%}.studio-duration{margin-left:auto}.studio-hero{display:grid;grid-template-columns:minmax(0,1.8fr) minmax(180px,1fr);align-items:center;gap:20px;padding:40px 46px;background:#e9e1f4;border-radius:34px;overflow:hidden;position:relative}.studio-hero h1{font-size:clamp(30px,3.2vw,45px);font-weight:600;line-height:1.13;letter-spacing:-1.6px;max-width:800px;margin:17px 0}.studio-hero p{font-size:16px;line-height:1.6;color:#796a84;max-width:650px}.studio-hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}.studio-hero-tags span{display:inline-flex;gap:8px;align-items:center;background:#ffffff9c;border:1px solid #fff8;border-radius:30px;padding:10px 14px;font-size:11px;color:#6f607b}.studio-hero-art{position:relative;height:230px;display:grid;place-items:center}.studio-hero-art img{width:100%;height:210px;object-fit:contain;z-index:1;filter:drop-shadow(0 25px 20px #6c478422);animation:studio-float 7s ease-in-out infinite}.studio-orbit{position:absolute;width:190px;height:190px;border:1px solid #b6a3ce55;border-radius:50%;transform:scaleX(1.25) rotate(-25deg)}.studio-orbit:after{content:"";position:absolute;top:-25px;right:-25px;bottom:-25px;left:-25px;border:1px dashed #b6a3ce44;border-radius:50%}.studio-art-badge{position:absolute;z-index:2;bottom:-5px;right:0;transform:rotate(-6deg);padding:12px 20px;border-radius:14px;background:#dffd92;font-size:13px;box-shadow:0 8px 22px #6c478411}.studio-phases{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin:24px 0 30px}.studio-phases button{border:1px solid #e3dee8;background:#ffffff8f;border-radius:22px;display:flex;align-items:center;gap:14px;text-align:left;padding:18px 20px;font:inherit;color:#817687;cursor:pointer;min-height:88px;transition:background .2s,transform .2s}.studio-phases button:hover{transform:translateY(-2px)}.studio-phases button>span{width:36px;height:36px;border-radius:50%;background:#f0eaf4;display:grid;place-items:center;font-size:12px;flex-shrink:0}.studio-phases strong{font-weight:550;font-size:16px;display:block;color:#38323e}.studio-phases small{font-size:11px;display:block;margin-top:5px}.studio-phases button>svg{margin-left:auto}.studio-phases button[aria-current=step]{background:#222025;color:#c4d0aa;border-color:#222025}.studio-phases button[aria-current=step] strong{color:#fff}.studio-phases button[aria-current=step]>span{background:#dcfa8c;color:#26311d}.studio-layout{display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:24px;align-items:start}.studio-content{min-width:0}.studio-section-title{display:flex;justify-content:space-between;align-items:center;gap:18px}.studio-section-title h2{font-size:24px;font-weight:550;letter-spacing:-.6px;margin:0}.studio-section-title>span:last-child{font-size:12px;color:#93869e}.studio-scene{background:#fff;border-radius:28px;padding:24px}.studio-scene .lesson-diagram{margin:20px 0 0;padding:20px;background:#f1edf7}.studio-scene .lesson-diagram svg{max-height:340px}.studio-scene .diagram-caption h3{font-size:22px}.studio-scene .diagram-caption p{font-size:15px;line-height:1.65}.studio-scene .diagram-notes{grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}.studio-scene .diagram-notes p{font-size:12px;padding:12px;line-height:1.5}.studio-scene .prime-motion{grid-template-columns:1fr;padding:22px;margin-top:20px;gap:20px;background:#f1edf7}.studio-scene .prime-motion h2{font-size:26px;font-weight:550;line-height:1.3;margin:16px 0}.studio-scene .prime-motion p{font-size:15px;line-height:1.6}.studio-scene .prime-grid{width:100%;max-width:500px;margin:auto}.studio-idea,.studio-examples,.studio-materials,.studio-practice,.studio-check{background:#fff;border-radius:28px;padding:28px;margin-top:24px}.studio-idea{background:#eef2e5}.studio-idea-picker,.studio-task-picker{display:flex;gap:9px;flex-wrap:wrap;margin:24px 0}.studio-idea-picker button,.studio-task-picker button{border:1px solid #d8d4df;background:#ffffffb3;border-radius:50%;width:42px;height:42px;font:inherit;font-size:13px;cursor:pointer}.studio-idea-picker button[aria-pressed=true],.studio-task-picker button[aria-pressed=true]{background:#26202b;color:#fff;border-color:#26202b}.studio-idea>p{font-size:19px;line-height:1.85;margin:22px 0;color:#4f5444}.studio-example{border-top:1px solid #eee9f2;margin-top:18px;padding:20px 0 0}.studio-example summary{display:flex;align-items:flex-start;gap:15px;cursor:pointer;list-style:none}.studio-example summary>span:first-child{background:#eee6f6;border-radius:12px;padding:10px;font-size:12px;color:#9078a2}.studio-example summary>strong{font-size:16px;line-height:1.6;font-weight:500;flex:1}.studio-example summary>span:last-child{font-size:22px;color:#9b8aa6}.studio-example p{font-size:15px;line-height:1.85;color:#73687c;padding:0 0 0 52px;white-space:pre-wrap}.studio-materials{background:#faf5df}.studio-materials details{border-top:1px solid #e6ddba;margin-top:18px;padding-top:18px}.studio-materials summary{display:flex;justify-content:space-between;align-items:center;cursor:pointer;gap:15px;list-style:none;font-size:15px}.studio-materials details>div{font-size:15px;line-height:1.85;white-space:pre-wrap;margin-top:15px;color:#756e58}.studio-next{display:flex;align-items:center;justify-content:center;gap:25px;border:0;border-radius:30px;background:#d9f783;color:#283318;padding:16px 24px;min-height:52px;font:inherit;font-weight:550;font-size:14px;cursor:pointer;margin:24px 0 0 auto}.studio-sidebar{position:sticky;top:24px}.studio-mentor{border-radius:28px;background:#e9e2f2;padding:24px;text-align:center}.studio-mentor-top{display:flex;justify-content:space-between;align-items:center;font-size:13px}.studio-ai{font-size:10px;border:1px solid #beaccd;border-radius:20px;padding:3px 7px;color:#8a729c}.studio-mentor>img{width:155px;height:155px;object-fit:contain;display:block;margin:20px auto 12px;filter:drop-shadow(0 14px 12px #70548822);animation:studio-float 5s ease-in-out infinite}.studio-mentor.is-live>img{animation:studio-speak .8s ease-in-out infinite}.studio-mentor h2{font-size:23px;font-weight:550;letter-spacing:-.8px;margin:15px 0 7px}.studio-mentor-subtitle{font-size:12px;color:#897597;line-height:1.6;margin:0 0 18px}.studio-mentor-reply{font-size:14px;line-height:1.8;text-align:left;background:#ffffff91;border-radius:19px;padding:18px;margin:18px 0;max-height:320px;overflow:auto}.studio-voice{display:flex;align-items:center;justify-content:center;gap:9px;background:#232025;color:#fff;border-radius:30px;width:100%;border:0;padding:16px 10px;min-height:50px;font:inherit;font-size:13px;cursor:pointer}.studio-mentor>.text-button{font-size:12px;width:100%;justify-content:center;margin-top:14px}.studio-side-note{padding:24px;background:#eaf2d7;border-radius:24px;margin-top:18px}.studio-side-note>span{font-size:9px;letter-spacing:1.7px;color:#809357}.studio-side-note p{font-size:13px;line-height:1.8;color:#56623d;margin-bottom:0}.studio-practice,.studio-check{margin-top:0}.studio-practice h2,.studio-check h2{font-size:29px;line-height:1.2;letter-spacing:-1px;margin:10px 0}.studio-practice-note,.studio-check>p{color:#8a7c94;font-size:13px;line-height:1.7}.studio-practice .native-task{border:0;border-top:1px solid #ece5f2;border-radius:0;margin:20px 0 0;padding:25px 0 0}.studio-practice .native-task h3{font-size:21px;line-height:1.55;letter-spacing:-.3px}.studio-task-footer{display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-top:24px;font-size:13px;color:#8d7b9a}.studio-task-footer .studio-next{margin:0 0 0 auto}.studio-check>h3{font-size:24px;line-height:1.55;font-weight:500}.studio-answer-options{display:grid;gap:12px}.studio-answer-options>button{display:flex;align-items:center;gap:15px;background:#f8f5fb;border:1px solid #e2d9ea;border-radius:18px;padding:17px;text-align:left;font:inherit;font-size:15px;line-height:1.6;cursor:pointer}.studio-answer-options>button>span:first-child{border-radius:50%;width:32px;height:32px;flex-shrink:0;display:grid;place-items:center;background:#fff;font-size:12px;color:#9c8ba8}.studio-answer-options>button.correct{background:#e2f3bc;border-color:#b7cf86}.studio-answer-options>button.incorrect{background:#fcf0e4;border-color:#e9caa8}.studio-check-feedback{padding:20px;border-radius:18px;background:#fff1df;margin-top:20px;font-size:14px;line-height:1.75}.studio-check-feedback.correct{background:#eef5dc}.studio-check-feedback p{margin-bottom:0}.studio-task-picker .solved:not([aria-pressed=true]){background:#e3f2bc;border-color:#c4d79e;color:#698338}.studio-source{font-size:12px;color:#96899d;line-height:1.7;padding:30px 10px}.studio-source summary{cursor:pointer}.lesson-card-art{position:relative;height:160px;display:grid;place-items:center;margin:10px 0 18px}.lesson-card-art img{height:155px;width:100%;object-fit:contain;filter:drop-shadow(0 10px 10px #6c478422);transition:transform .3s}.native-lesson-cards button:hover .lesson-card-art img{transform:translateY(-5px) rotate(-4deg)}.lesson-card-art>span{position:absolute;bottom:0;right:0;background:#fff9;border-radius:20px;padding:8px 12px;font-size:11px}.native-lesson-cards>button:nth-child(3n+2){background:#e9efd9}.native-lesson-cards>button:nth-child(3n+3){background:#f5eccd}.lesson-studio button:focus-visible{outline:3px solid #9b81b4;outline-offset:3px}.lesson-studio [hidden]{display:none!important}@keyframes studio-float{50%{transform:translateY(-7px) rotate(2deg)}}@keyframes studio-speak{50%{transform:scale(1.05)}}@media(max-width:1100px){.studio-hero{padding:30px}.studio-layout{grid-template-columns:minmax(0,1fr) 245px;gap:18px}.studio-mentor{padding:18px}.studio-phases button{padding:15px;gap:10px}.studio-phases small{font-size:10px}.studio-phases strong{font-size:14px}}@media(max-width:850px){.studio-layout{grid-template-columns:minmax(0,1fr)}.studio-sidebar{position:static;display:grid;grid-template-columns:1.3fr 1fr;gap:15px}.studio-side-note{margin:0;align-self:start}.studio-hero-art{height:180px}.studio-hero-art img{height:170px}.studio-phases small{display:none}.studio-duration{display:none!important}}@media(max-width:600px){.studio-hero{grid-template-columns:minmax(0,1fr);padding:25px}.studio-hero-art{height:135px;grid-row:1}.studio-hero-art img{height:135px}.studio-orbit{width:110px;height:110px}.studio-art-badge{font-size:11px}.studio-hero h1{font-size:30px}.studio-hero-tags span{font-size:10px}.studio-topline{gap:10px}.studio-phases{gap:6px}.studio-phases button{display:grid;justify-items:center;text-align:center;padding:12px 5px;gap:8px}.studio-phases button>svg{display:none}.studio-phases strong{font-size:11px}.studio-phases button>span{width:28px;height:28px;font-size:10px}.studio-scene,.studio-idea,.studio-examples,.studio-materials,.studio-practice,.studio-check{padding:20px}.studio-sidebar{grid-template-columns:minmax(0,1fr)}.studio-hero p{font-size:14px}.studio-idea>p{font-size:17px}.studio-section-title h2{font-size:21px}.studio-section-title>span:last-child{font-size:10px}.studio-scene .diagram-notes{grid-template-columns:minmax(0,1fr)}.studio-example p{padding-left:0}}@media(prefers-reduced-motion:reduce){.lesson-studio *,.lesson-card-art img{animation:none!important;transition:none!important}}html[data-motion=reduced] .lesson-studio *{animation:none!important;transition:none!important}.course-hero{display:grid;grid-template-columns:minmax(0,1.7fr) minmax(150px,1fr);align-items:center;padding:36px 42px;background:#e9e2f3;border-radius:32px;margin:22px 0 32px;gap:24px}.course-hero h1{font-size:clamp(30px,4vw,48px);font-weight:550;letter-spacing:-1.5px;margin:18px 0}.course-hero p{color:#82718e;line-height:1.6}.course-hero>img{width:100%;height:190px;object-fit:contain;filter:drop-shadow(0 18px 15px #70548822)}.course-count{display:inline-block;padding:11px 15px;background:#ffffff91;border-radius:25px;color:#776784;font-size:12px;margin-top:12px}.course-library-heading{display:flex;align-items:center;justify-content:space-between;gap:20px;margin:25px 0}.course-library-heading h2{font-size:25px;font-weight:500;letter-spacing:-.5px}.course-library .native-lesson-cards{grid-template-columns:repeat(auto-fit,minmax(260px,1fr))}.course-library .native-lesson-cards>button{max-width:440px}.course-library .native-lesson-cards h2{font-size:25px}.course-library .native-lesson-cards>button>span{font-size:10px;letter-spacing:.8px;color:#7b6d86}.course-programme{padding:23px 26px;background:#fff8;border:1px solid #e5deeb;border-radius:22px;margin-top:35px}.course-programme summary{display:flex;justify-content:space-between;gap:20px;cursor:pointer;font-size:16px}.course-programme summary>span:last-child{font-size:12px;color:#998ba3}.course-programme>p{font-size:13px;line-height:1.7;color:#8b7f93}.course-programme ol{padding-left:20px}.course-programme li{padding:14px 8px;border-top:1px solid #ece6f2;line-height:1.6;font-size:14px}.course-programme li small{display:block;color:#a295ab;font-size:11px;margin-top:5px}.course-missing{display:flex;gap:22px;padding:26px;background:#f1ede4;border-radius:24px}.course-missing>svg{flex-shrink:0;color:#a89b7a}.course-missing h2{font-size:20px;font-weight:500;margin:0}.course-missing p{font-size:14px;color:#8d8270;line-height:1.7}.course-library .textbook-materials{margin-top:20px}@media(max-width:650px){.course-hero{padding:26px;grid-template-columns:minmax(0,1fr)}.course-hero>img{height:130px;grid-row:1}.course-library-heading{align-items:stretch;flex-direction:column}.course-library-heading h2{margin:0}.course-programme summary{flex-direction:column;gap:8px}.course-missing{display:block}.course-missing h2{margin-top:12px}}.studio-task-materials{background:#faf5df;border-radius:18px;padding:17px 20px;margin:18px 0}.studio-task-materials summary{display:flex;justify-content:space-between;align-items:center;font-size:14px;cursor:pointer}.studio-task-materials section{padding:15px 0;border-top:1px solid #e6ddba;margin-top:15px}.studio-task-materials h3{font-size:17px!important}.studio-task-materials p{font-size:14px;line-height:1.8;white-space:pre-wrap}.studio-content{scroll-margin-top:24px}.studio-caption-scene{min-height:220px;margin:22px 0;padding:30px;border-radius:24px;background:#f0eaf6;display:grid;grid-template-columns:60px minmax(0,1fr);gap:25px;align-items:center}.studio-caption-scene>span{font-size:42px;letter-spacing:-2px;color:#b29dc5}.studio-caption-scene p{font-size:23px;line-height:1.65;letter-spacing:-.4px;animation:studio-arrive .3s ease-out}.studio-ask-form{text-align:left;margin-top:24px}.studio-ask-form label{font-size:12px;color:#897597}.studio-ask-form textarea{display:block;width:100%;resize:vertical;border:1px solid #d2c5dd;background:#ffffffb0;border-radius:15px;padding:13px;font:inherit;font-size:13px;line-height:1.7;margin:8px 0}.studio-ask-form .text-button{width:100%;justify-content:space-between}.studio-side-note .game-wallet{border:0;background:none;margin:12px 0;padding:0}.authored-studio .open-task{padding:24px 0;border:0;border-top:1px solid #ece5f2;border-radius:0}.authored-studio .open-task h4{font-size:21px;line-height:1.6;margin:15px 0}.authored-studio .open-task>strong{font-size:12px;color:#8a7c94}.authored-studio .open-task li{font-size:14px;line-height:1.8;color:#776982}.authored-studio .open-task label{font-size:13px;color:#8a7c94}.authored-studio .open-task textarea{margin-top:12px;background:#faf8fc;border-color:#e2d9ea;border-radius:16px;line-height:1.8}.authored-studio .lesson-narration{margin-top:24px}@keyframes studio-arrive{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}@media(max-width:600px){.studio-caption-scene{grid-template-columns:minmax(0,1fr);gap:0;padding:22px}.studio-caption-scene p{font-size:19px}}.studio-phases{position:sticky;top:0;z-index:5;background:#f7f5f2;padding:10px 0;margin-top:14px}.studio-content{scroll-margin-top:125px}.studio-sidebar{top:125px}@media(max-width:600px){.studio-content{scroll-margin-top:115px}.studio-phases{gap:6px}}.studio-phases.two-phases{grid-template-columns:repeat(2,minmax(0,1fr))}.course-search-empty{padding:28px;background:#fff;border-radius:24px;color:#87758e}.course-library .native-lesson-cards button:disabled{cursor:wait;opacity:.65}.studio-reading{margin-top:24px;background:#f5eedf;border-radius:28px;padding:28px}.studio-reading summary{display:flex;align-items:center;gap:18px;list-style:none;cursor:pointer}.studio-reading summary>svg{flex-shrink:0;font-size:25px;color:#9c8966}.studio-reading summary>svg:last-child{margin-left:auto}.studio-reading h2{font-size:23px;line-height:1.4;font-weight:500;letter-spacing:-.5px;margin:9px 0 0}.studio-reading>div{white-space:pre-wrap;font-family:Georgia,serif;font-size:19px;line-height:1.9;margin:28px 0 0;padding-top:26px;border-top:1px solid #dfd3b9;color:#4e483c}.studio-reading[open] summary>svg:last-child{transform:rotate(90deg)}.lesson-diagram{background:#eee8f6;padding:28px;border-radius:28px;margin:28px 0}.diagram-title{display:flex;justify-content:space-between;align-items:center;color:#786689}.lesson-diagram svg{display:block;width:100%;max-height:560px;overflow:visible}.diagram-node{transition:transform .8s ease,opacity .5s ease}.diagram-node-label{font-size:23px;font-weight:600;fill:#302736}.diagram-edge-label{font-size:18px;fill:#6f5e82;paint-order:stroke;stroke:#eee8f6;stroke-width:8px;stroke-linejoin:round}.diagram-edge{stroke-dasharray:8 5;animation:diagram-flow 5s linear infinite}.diagram-caption h3{font-size:24px;margin:0}.diagram-caption p{margin:10px 0}.diagram-notes{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:12px;margin:18px 0}.diagram-notes p{padding:15px;border-radius:16px;background:#fff8;margin:0;font-size:14px;line-height:1.6}.diagram-controls{display:flex;gap:10px;flex-wrap:wrap}.diagram-controls button{border:0;border-radius:50%;width:44px;height:44px;background:#fff;display:grid;place-items:center;font:inherit;cursor:pointer}.diagram-controls button[aria-pressed=true]{background:#201b25;color:#fff}.diagram-controls button:disabled{opacity:.35}.lesson-support{padding:25px;background:#f1f3ea;border-radius:22px;margin:18px 0}.lesson-support p{white-space:pre-wrap}.lesson-filters{display:flex;flex-wrap:wrap;gap:14px;align-items:center;margin:20px 0}.lesson-filters input,.lesson-filters select{font:inherit;padding:12px 16px;border-radius:14px;border:1px solid #d9d2df;background:#fff}.native-card-symbol.diagram{font-size:25px;line-height:1.4;letter-spacing:0;color:#654c87}.lesson-diagram.reduced .diagram-node,html[data-motion=reduced] .diagram-node{transition:none}.lesson-diagram.reduced .diagram-edge,html[data-motion=reduced] .diagram-edge{animation:none}@keyframes diagram-flow{to{stroke-dashoffset:-52}}@media(prefers-reduced-motion:reduce){.diagram-edge{animation:none}.diagram-node{transition:none}}@media(max-width:650px){.lesson-diagram{padding:18px}.diagram-node-label{font-size:25px}.diagram-notes{grid-template-columns:1fr}.diagram-caption h3{font-size:20px}}.lesson-formula{max-width:100%;overflow-x:auto}.lesson-formula.block{display:block;padding:10px 0}.lesson-formula .katex{font-size:1.15em}.lesson-intro{padding:25px;border-radius:30px;background:#eee6f8;margin-bottom:25px}.lesson-intro-heading{display:flex;gap:20px;justify-content:space-between;align-items:center;margin-bottom:20px}.lesson-intro-heading h2{font-size:23px;letter-spacing:-.7px;margin:9px 0 0}.lesson-intro-heading>span{font-size:12px;color:#6d6079;white-space:nowrap}.lesson-intro-screen{position:relative;overflow:hidden;border-radius:22px;background:#f7f5f0;aspect-ratio:16/9}.lesson-intro-screen video{display:block;width:100%;height:100%;object-fit:contain}.lesson-intro-play{position:absolute;left:50%;bottom:13%;transform:translate(-50%);display:flex;align-items:center;gap:12px;padding:15px 23px;border:0;border-radius:40px;background:#242127;color:#fff;font-size:14px;white-space:nowrap;box-shadow:0 8px 30px #30263825}.lesson-intro-play svg{font-size:22px}.lesson-intro details{margin-top:16px;font-size:13px;line-height:1.7;color:#62556f}.lesson-intro details summary{cursor:pointer}.lesson-intro details p{max-width:65ch}.lesson-intro-note{font-size:13px}.lesson-intro [role=alert] button{border:0;background:#fff;padding:9px;border-radius:12px}@media(max-width:700px){.lesson-intro{padding:15px}.lesson-intro-heading{align-items:start;flex-direction:column;gap:9px}.lesson-intro-heading h2{font-size:20px}.lesson-intro-play{font-size:12px;padding:10px 15px}}@media(min-height:520px)and (orientation:landscape){.lesson-intro-screen{max-height:max(240px,calc(100dvh - 340px))}}.lesson-intro-screen{margin-inline:auto}.lesson-lab{padding:28px;border:1px solid #e8e1ef;border-radius:28px;background:#fffdf9;margin:24px 0}.lesson-lab h2{font-size:26px;letter-spacing:-.6px}.lesson-lab>p{line-height:1.65;color:#6c6274}.lab-square{display:flex;align-items:center;gap:35px;padding:24px 0}.lab-square-grid{display:grid;gap:4px;width:52%;max-width:280px;aspect-ratio:1}.lab-square-grid span{background:#d9c9ef;border-radius:6px;animation:lab-in .25s ease}.lab-equation{display:grid;gap:12px}.lab-equation span{font-size:12px;color:#766582}.lab-equation strong{font-size:26px}.lesson-lab label{display:flex;align-items:center;gap:20px;font-size:16px}.lesson-lab input[type=range]{accent-color:#8b6fb0;flex:1;min-width:0;min-height:44px}.lesson-lab svg{width:100%;max-height:350px}.lab-takeaway{padding:18px 20px;background:#eef5dd;border-radius:18px;color:#485439!important}.lab-alphabet{display:flex;gap:12px;margin:24px 0}.lab-alphabet button{display:grid;gap:12px;flex:1;border:0;border-radius:22px;padding:20px;min-height:110px}.lab-alphabet strong{font-size:30px}.lab-alphabet span{font-size:18px}.lab-message{display:grid;gap:16px;overflow-wrap:anywhere;min-height:90px}.lab-message strong{font-size:28px;letter-spacing:5px}.lab-message code{font-size:20px;white-space:pre-wrap}.lesson-lab button:disabled{opacity:.4}@keyframes lab-in{0%{opacity:0;transform:scale(.8)}to{opacity:1;transform:scale(1)}}@media(prefers-reduced-motion:reduce){.lab-square-grid span{animation:none}}@media(max-width:600px){.lab-square{gap:18px}.lab-equation strong{font-size:20px}.lesson-lab{padding:18px}.lab-alphabet button{padding:10px}}:root{font-family:Manrope,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;color:#edf3f7;background:#081724;font-synthesis:none;font-weight:500;--bg:#081724;--panel:#102435;--panel2:#152b3e;--line:#284051;--muted:#91a6b5;--peach:#f5c0a5;--mint:#abe5d1;--yellow:#efdda4;--radius:22px;color-scheme:dark}*{box-sizing:border-box}body{margin:0;min-width:360px;-webkit-font-smoothing:antialiased}button,input,select,textarea{font:inherit}button,a,input,select{-webkit-tap-highlight-color:transparent}button{cursor:pointer;color:inherit;border:0;background:none}button:disabled{cursor:default;opacity:.42}button,a,input,select,textarea{outline-offset:5px}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:2px solid var(--mint)}a{color:var(--mint);text-decoration:none}button{transition:background .18s,transform .18s,border-color .18s}button:not(:disabled):active{transform:translateY(1px)}input,select,textarea{color:inherit;border:1px solid var(--line);background:#0c1c2b;border-radius:12px;padding:13px 15px;min-width:0}input::placeholder{color:#8297a6}h1,h2,h3,p{margin:0}h1{font-size:clamp(27px,2.7vw,40px);font-weight:650;line-height:1.25;letter-spacing:-1.6px}h2{font-weight:650;letter-spacing:-.6px}p{line-height:1.65}svg{flex-shrink:0}.muted{color:var(--muted);font-size:13px;line-height:1.7}.peach{color:var(--peach)}.app-shell{height:100dvh;display:flex;overflow:hidden}.rail{width:92px;flex-shrink:0;background:#0b1b29;border-right:1px solid #1b3040;display:flex;align-items:center;flex-direction:column;padding:25px 10px 19px}.brand-symbol{height:48px;width:48px;border-radius:16px;background:var(--peach);color:#183041;display:grid;place-items:center;margin:0 0 54px}.rail nav{display:flex;flex-direction:column;gap:17px;width:100%}.rail nav button{display:flex;flex-direction:column;align-items:center;gap:9px;color:#8298a9;padding:14px 2px;border-radius:14px;font-size:10px;letter-spacing:.1px}.rail nav button.nav-active{color:var(--peach);background:#27323a}.rail nav button:hover{background:#172a39}.rail-settings{margin-top:auto;color:#94a9b7;padding:15px}.rail-wordmark{color:#647e8e;font-size:10px;letter-spacing:2px;margin-top:13px}.app-main{flex:1;min-width:0;display:flex;flex-direction:column}.topbar{height:91px;min-height:91px;display:flex;align-items:center;justify-content:space-between;gap:20px;border-bottom:1px solid #1c3040;padding:0 42px}.wordmark{font-size:20px;letter-spacing:1.6px;font-weight:800;white-space:nowrap}.wordmark span{font-size:14px;font-weight:500;letter-spacing:0;color:#9cb2c2;margin-left:7px}.top-controls{display:flex;gap:21px;align-items:center}.grade-picker{display:flex;align-items:center;gap:8px;font-size:12px;color:#b7c8d3}.grade-picker select{-webkit-appearance:none;-moz-appearance:none;appearance:none;background:transparent;border:0;padding:10px 0;font-size:12px;cursor:pointer}.grade-picker select option{background:#102435}.language-toggle{display:flex;padding:3px;border:1px solid #2b4254;border-radius:25px;background:#102333}.language-toggle button{font-size:10px;color:#b2c4d0;padding:7px 13px;line-height:1;border-radius:20px}.language-toggle button.selected{color:#172a35;background:#f3c2aa}.xp-pill{display:flex;align-items:center;gap:7px;font-size:11px;color:#e8d5a5}.xp-pill strong{font-size:13px}.xp-pill span{font-size:10px;color:#a99d7e}.avatar{height:36px;width:36px;display:grid;place-items:center;border:1px solid #49615f;background:#28413f;border-radius:50%;color:#c4dfd2;font-size:14px}.page-content{padding:39px 42px 25px;overflow:auto;flex:1;scrollbar-width:thin;scrollbar-color:#334c5c transparent}.home-view,.catalogue-view,.journey-view{max-width:1430px;margin:auto}.page-heading{display:flex;justify-content:space-between;align-items:center;gap:20px;margin-bottom:31px}.eyebrow{font-size:10px;font-weight:700;letter-spacing:1.9px;line-height:1.5;color:#a1b4c1}.page-heading .eyebrow{margin-bottom:12px}.page-heading p{font-size:13px;color:var(--muted);margin-top:12px}.quiet-badge{display:flex;align-items:center;gap:8px;color:#b6c8d2;font-size:11px;border:1px solid #2c4250;padding:10px 14px;border-radius:30px}.home-hero-grid{display:grid;grid-template-columns:minmax(0,2.2fr) minmax(240px,1fr);gap:22px}.hero-lesson{min-height:350px;position:relative;background:#0b2032;border:1px solid #284357;border-radius:25px;overflow:hidden}.hero-art{position:absolute;height:100%;width:100%;object-fit:cover;object-position:center;top:0;right:0;bottom:0;left:0}.hero-lesson-copy{position:relative;z-index:1;width:51%;padding:32px 0 23px 32px}.hero-lesson-copy .eyebrow{font-size:9px;letter-spacing:1.4px}.lesson-meta{display:flex;gap:12px;font-size:10px;color:#adbfcb;margin:21px 0 15px}.lesson-meta span:first-child{color:#c3dfd4}.hero-lesson h2{font-size:34px;line-height:1.2;letter-spacing:-1.1px;max-width:260px}.hero-lesson p{color:#a8bdcb;font-size:12px;max-width:235px;margin-top:15px}.primary{display:inline-flex;align-items:center;justify-content:center;gap:17px;border-radius:12px;padding:14px 20px;background:var(--peach);color:#24333c;font-size:12px;font-weight:750;min-height:44px;white-space:nowrap}.primary:hover:not(:disabled){background:#ffd3bb}.hero-lesson .primary{margin-top:24px;padding:14px 17px;gap:14px;font-size:11px}.hero-bottom{margin-top:21px;font-size:9px;color:#a4b8c7;display:flex;align-items:center;gap:7px}.status-dot{width:6px;height:6px;border-radius:50%;background:var(--mint);display:inline-block;flex-shrink:0}.meet-card{display:flex;flex-direction:column;align-items:center;text-align:center;background:#102435;border:1px solid #2b4051;border-radius:25px;padding:23px 24px}.meet-card>.eyebrow{font-size:9px;letter-spacing:1.3px}.orb{width:160px;height:160px;display:grid;place-items:center;position:relative;overflow:visible;flex-shrink:0}.orb img{width:100%;height:100%;object-fit:contain;mix-blend-mode:screen;animation:orb-breathe 7s ease-in-out infinite,orb-flow 23s ease-in-out infinite;will-change:transform;border-radius:50%}.meet-card .orb{width:154px;height:154px;margin:-1px 0 0}.meet-card h2{font-size:20px;margin-top:1px}.meet-card p{font-size:11px;color:#9cb2c1;max-width:220px;margin-top:11px;line-height:1.75}.text-button{display:inline-flex;align-items:center;gap:10px;font-size:11px;font-weight:600;color:#c4d3dc;padding:5px 0}.text-button:hover{color:var(--peach)}.meet-card .text-button{color:#f3c5ad;margin-top:auto;padding-top:16px;font-size:10px}.section-title{display:flex;align-items:center;justify-content:space-between;margin:32px 0 19px}.section-title h2{font-size:19px;display:flex;gap:12px;align-items:center}.section-title h2 span{font-size:10px;letter-spacing:0;font-weight:500;border:1px solid #314656;color:#a4b6c3;border-radius:20px;padding:3px 7px}.subject-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:15px}.subject-grid.compact{grid-template-columns:repeat(3,minmax(0,1fr))}.subject-card{position:relative;text-align:left;min-height:160px;border:1px solid #263e50;border-radius:18px;padding:21px 23px;background:#102334}.subject-card:hover{border-color:#68898e;background:#132a3b;transform:translateY(-2px)}.subject-icon{width:40px;height:40px;border-radius:12px;display:grid;place-items:center;background:#333b40;color:var(--peach);margin-bottom:18px}.tone-nature .subject-icon{background:#263e3f;color:#b4e4d4}.tone-languages .subject-icon{background:#333b47;color:#c4c3eb}.tone-society .subject-icon{background:#3a3c35;color:#e9d6a1}.tone-creative .subject-icon{background:#3a3443;color:#e5bcd7}.subject-card h3{font-size:14px;line-height:1.5;font-weight:600;letter-spacing:-.2px;margin-right:10px}.subject-card>span{display:block;font-size:10px;color:#829dad;margin-top:5px}.card-arrow{position:absolute;top:24px;right:22px;color:#6b879a}.bottom-note{display:flex;align-items:center;gap:9px;font-size:10px;color:#7e98a9;margin-top:25px;line-height:1.6}.bottom-note button{margin-left:auto;display:flex;align-items:center;gap:7px;font-size:10px;color:#a9bfcc}.search{display:flex;align-items:center;gap:10px;background:#102435;border:1px solid #2b4152;border-radius:12px;padding:0 13px;color:#8fa7b7}.search input{background:transparent;border:0;padding:12px 0;font-size:12px;width:100%}.category-tabs{display:flex;flex-wrap:wrap;gap:7px;margin-bottom:25px}.category-tabs button,.profile-tabs button{font-size:11px;padding:10px 15px;color:#9fb3c1;border-radius:25px;border:1px solid transparent}.category-tabs button.active,.profile-tabs button.active{border-color:#49636d;background:#243a45;color:#d0e8de}.category-tabs button:hover{background:#142b3c}.catalogue-note{display:flex;align-items:center;gap:10px;font-size:11px;color:var(--muted);margin-top:25px}.profile-tabs{display:flex;gap:10px;margin-bottom:15px}.progress-summary{display:flex;gap:60px;align-items:center;padding:30px 34px;border:1px solid #2b4251;background:#112637;border-radius:20px;margin-bottom:28px}.progress-summary>div{display:flex;flex-direction:column;gap:10px}.progress-summary span{font-size:12px;color:#9bb1c1}.progress-summary strong{font-size:39px;color:#edc8ae;letter-spacing:-1px}.progress-summary small{font-size:15px;color:#8ca5b5;margin-left:10px}.progress-summary p{font-size:12px;color:#9bb1c1;max-width:260px;margin-left:auto}.journey-card{border:1px solid #2b4251;border-radius:22px;padding:30px;background:#102435}.journey-card h2{font-size:22px}.journey-card>p{font-size:12px;color:var(--muted);margin-top:10px}.journey-nodes{display:flex;align-items:start;justify-content:space-between;margin:45px 0 30px}.journey-nodes button{display:flex;align-items:center;flex-direction:column;gap:14px;width:23%;position:relative}.journey-nodes button:not(:last-child):after{position:absolute;content:"";height:1px;background:#3f5867;left:70%;width:80%;top:27px}.journey-nodes button>span{display:grid;place-items:center;border:1px solid #56717d;width:54px;height:54px;border-radius:50%;background:#1b3547;color:#b1c9d4;z-index:1}.journey-nodes button.done>span{background:#a6d8c6;color:#18383a;border-color:#a6d8c6}.journey-nodes strong{font-size:12px}.journey-nodes small{color:#a2b7c5;font-size:11px}.lesson-shell .page-content{padding:0 28px 24px}.lesson-header{display:flex;align-items:center;justify-content:space-between;font-size:10px;height:62px;gap:15px;color:#92adbd}.lesson-header>span{display:flex;align-items:center;gap:10px}.lesson-header i{height:3px;width:3px;border-radius:50%;background:#617e90}.lesson-progress-label{display:none!important}.lesson-layout{display:grid;grid-template-columns:160px minmax(0,1fr) 242px;gap:17px;min-height:calc(100dvh - 178px);max-width:1600px;margin:auto}.mission-rail{padding:22px 0;display:flex;flex-direction:column}.mission-rail>.eyebrow{font-size:8px;letter-spacing:1.3px}.mission-rail h2{font-size:20px;margin-top:8px}.mission-rail h2>span{color:#658497;font-size:13px}.mission-steps{display:flex;flex-direction:column;gap:9px;margin-top:28px}.mission-steps button{display:flex;align-items:center;gap:10px;text-align:left;padding:12px 7px;border-radius:11px;font-size:11px;color:#9ab2c2;line-height:1.6}.mission-steps button.current{background:#2a353c;color:#f2c3a8}.step-number{display:grid;place-items:center;min-width:25px;min-height:25px;border:1px solid #40586b;border-radius:50%;font-size:9px}.current .step-number{background:#f1c2a8;color:#223946;border-color:#f1c2a8}.done .step-number{background:#a6d8c6;color:#1b3c3b;border-color:#a6d8c6}.mission-tip{margin-top:auto;padding:30px 10px 18px;display:flex;align-items:start;gap:9px;color:#a9cbbf}.mission-tip p{font-size:10px;color:#819dab}.lesson-stage{border:1px solid #2d465a;border-radius:23px;background:#0f263a;display:flex;flex-direction:column;overflow:hidden;min-width:0}.stage-heading{padding:29px 28px 0}.stage-heading .eyebrow{font-size:9px}.stage-heading h1{font-size:29px;margin-top:9px;letter-spacing:-1.1px}.stage-heading p{font-size:12px;color:#a0b8c8;margin-top:10px}.math-workspace{min-height:255px;flex:1;position:relative;display:flex;align-items:center;justify-content:center;padding:0 8px;isolation:isolate}.fraction-canvas{display:block;height:100%;min-height:250px;width:100%;touch-action:manipulation;cursor:pointer}.math-workspace>.fraction-canvas{width:68%;height:310px}.live-equation{display:flex;align-items:center;gap:17px;padding-right:23px;color:#f6d0b4}.fraction{display:inline-flex;flex-direction:column;align-items:center;justify-content:center;vertical-align:middle;line-height:1.3;font-family:Georgia,Times New Roman,serif;font-size:39px;min-width:38px}.fraction>span:first-child{border-bottom:1.5px solid currentColor;padding:0 8px 3px}.fraction>span:last-child{padding-top:3px}.equation-equals{font-size:23px;color:#7799af}.segment-controls{display:flex;align-items:center;justify-content:center;gap:7px;margin:0 0 14px}.segment-controls button{width:32px;height:32px;border:1px solid #426072;border-radius:9px;font-size:11px;color:#a9c1d0;background:#142d40}.segment-controls button.selected{color:#293740;background:#f2c2a7;border-color:#f2c2a7}.stage-feedback{padding:0 25px;min-height:65px;display:flex;align-items:center;justify-content:center}.feedback{display:flex;align-items:center;gap:10px;font-size:11px;padding:13px 15px;border:1px solid #466e68;background:#1e3a3d;color:#c5eadb;border-radius:12px;width:100%}.feedback strong{margin-left:auto;font-size:11px;white-space:nowrap}.feedback.retry{color:#eed6b4;background:#3b3935;border-color:#6c6250}.stage-caption{font-size:10px;color:#819eaf;text-align:center;max-width:400px}.hint-box{display:flex;align-items:center;gap:11px;color:#e0cba4}.hint-box p{font-size:11px}.stage-actions{display:flex;justify-content:space-between;align-items:center;gap:8px;border-top:1px solid #2b4355;padding:17px 21px;margin-top:8px}.stage-actions>div{display:flex;align-items:center;gap:5px}.subtle-button{display:flex;align-items:center;gap:7px;font-size:9px;color:#b1c8d5;padding:9px 0}.subtle-button:hover{color:var(--peach)}.icon-button{width:36px;height:36px;display:inline-grid;place-items:center;color:#a7becc;border-radius:10px}.icon-button:hover{background:#253f50;color:#ebd3be}.stage-actions .primary{padding:12px 16px;font-size:11px;gap:12px}.tutor-panel{padding:23px 20px 16px;background:#102435;border:1px solid #2d4455;border-radius:23px;display:flex;flex-direction:column;min-width:0}.tutor-heading{display:flex;align-items:center;justify-content:space-between}.tiny-label{font-size:8px;color:#a3b9c7;border:1px solid #3d5668;border-radius:5px;padding:3px 5px}.tutor-orb-area{display:flex;align-items:center;flex-direction:column;margin:10px 0 20px}.tutor-panel .orb{width:177px;height:177px}.voice-label{display:flex;align-items:center;gap:6px;font-size:8px;color:#8da8b8;text-align:center;line-height:1.7}.voice-label>span{width:4px;height:4px;background:#6c8a9a;border-radius:50%;flex-shrink:0}.voice-label.is-live{color:var(--mint)}.voice-label.is-live>span{background:var(--mint)}.tutor-caption{padding:17px 0 10px;border-top:1px solid #2c4354;min-height:110px}.tutor-caption p{font-size:12px;color:#d1e1eb;line-height:1.9}.tutor-actions{display:flex;align-items:center;flex-direction:column;gap:10px;margin-top:auto;padding-top:17px}.mic-button{display:grid;place-items:center;width:53px;height:53px;border-radius:50%;background:#f1c3a9;color:#243744;border:5px solid #34434a;box-sizing:content-box}.mic-button:hover{background:#ffdbc4}.mic-button.active{background:#abe2cf;border-color:#2b514f}.tutor-actions>p{font-size:9px;color:#b8c9d4}.voice-setup-note{font-size:8px;line-height:1.7;text-align:center;color:#7f9aaa;margin:12px auto;max-width:200px}.ask-form{display:flex;align-items:center;border:1px solid #355066;border-radius:12px;margin-top:17px;background:#102333}.ask-form input{padding:11px 10px;border:0;background:transparent;font-size:10px;width:100%}.ask-form button{padding:10px 10px 10px 0;color:#edc5ac}.chat-messages{max-height:140px;overflow:auto}.chat-messages p{font-size:11px;padding:8px 10px;margin:6px 0;border-radius:9px;line-height:1.6;background:#1b3548}.chat-messages .user{background:#353e43;color:#e4cab8}.compare-scene{display:flex;width:100%;gap:10px;padding:10px}.compare-option{display:flex;flex-direction:column;align-items:center;position:relative;width:50%;border:1px solid transparent;border-radius:15px;padding:0 0 18px}.compare-option .fraction-canvas{height:220px;min-height:220px}.compare-option .fraction{font-size:26px}.compare-option.chosen{border-color:#a9d5c6;background:#173743}.compare-option>svg{position:absolute;bottom:20px;right:15px;color:#a9dfcc}.finish-view{display:flex;flex-direction:column;align-items:center;text-align:center;padding:55px 30px;color:#e2ccad}.finish-view>.eyebrow{margin-top:25px}.finish-view h1{margin-top:15px;color:#edf3f7}.finish-view>p{max-width:490px;margin-top:20px;color:#9cb5c6;font-size:14px}.finish-xp{display:flex;align-items:center;gap:10px;border:1px solid #8d8060;background:#3e3b30;border-radius:30px;padding:10px 20px;margin-top:25px;font-size:19px}.equivalence-final{display:flex;gap:20px;align-items:center;margin:35px}.finish-view .primary{margin-top:10px}.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;z-index:30;background:#030e1bbd;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);display:flex;align-items:center;justify-content:center;padding:25px}.modal{background:#112638;border:1px solid #3e5869;border-radius:24px;width:460px;max-height:90dvh;overflow:auto;box-shadow:0 25px 100px #0008;padding:27px}.modal-wide{width:820px}.modal>header{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:24px}.modal h2{font-size:22px}.settings-form{display:flex;flex-direction:column;gap:20px}.settings-form>label{display:flex;flex-direction:column;font-size:12px;gap:9px;color:#c2d3de}.settings-form .switch-label{flex-direction:row;align-items:center;justify-content:space-between;gap:20px}.switch-label span{display:flex;flex-direction:column;gap:8px}.switch-label strong{font-size:12px}.switch-label small{font-size:10px;line-height:1.7;color:#8ea6b7}.switch-label input{width:20px;height:20px;flex-shrink:0;accent-color:var(--mint)}.connection-note{display:flex;align-items:center;gap:10px;font-size:11px;color:#b6cdc8}.muted-dot{background:#8a9fae}.meza-dialog .orb{width:210px;height:210px}.meza-dialog .tutor-orb-area{margin:0 0 20px}.meza-dialog .tutor-caption{min-height:0;padding-top:20px}.meza-dialog .voice-label{font-size:11px}.meza-dialog .voice-setup-note{font-size:11px;max-width:300px}.meza-dialog .tutor-actions>p{font-size:11px}.meza-dialog .ask-form input{font-size:12px}.source-notice{display:flex;align-items:start;gap:11px;padding:15px;background:#3a3b35;border:1px solid #5b5e4e;color:#dfd2b4;border-radius:12px;font-size:12px}.source-meta{display:flex;justify-content:space-between;gap:20px;font-size:10px;color:#97aebf;margin:20px 0}.source-meta a{display:flex;align-items:center;gap:5px}.source-body{max-height:50dvh;overflow:auto;margin-top:20px;padding:5px 8px 5px 0;font-size:12px;line-height:1.8;color:#b6cbd8}.source-body p{margin-bottom:12px;white-space:pre-wrap;overflow-wrap:anywhere}.toast{position:fixed;z-index:70;bottom:25px;left:50%;transform:translate(-50%);display:flex;align-items:center;gap:12px;background:#213b4b;border:1px solid #577786;box-shadow:0 12px 40px #0006;padding:15px 17px;border-radius:15px;font-size:12px;max-width:560px;width:max-content}.toast>span{max-width:450px}.toast>button{display:grid;place-items:center}.loading-screen{min-height:100dvh;display:flex;flex-direction:column;justify-content:center;align-items:center;gap:20px;color:var(--muted)}.orb-small{width:110px;height:110px}.orb-listening img{animation-duration:3s,10s;filter:saturate(1.15)}.orb-speaking img{animation:orb-speak 1.3s ease-in-out infinite,orb-flow 8s ease-in-out infinite}.orb-thinking img{animation:orb-breathe 2.2s ease-in-out infinite,orb-flow 6s linear infinite}.orb-connecting img{opacity:.65}.empty-state{padding:70px;text-align:center;color:var(--muted)}@keyframes orb-breathe{0%,to{scale:.96;filter:brightness(.94)}50%{scale:1.04;filter:brightness(1.1)}}@keyframes orb-flow{0%,to{transform:rotate(-9deg) translateY(0)}50%{transform:rotate(12deg) translateY(-4px)}}@keyframes orb-speak{0%,to{scale:.94}30%{scale:1.06 1.02}65%{scale:1.01 1.07}}@media(min-width:1500px){.hero-lesson{min-height:400px}.hero-lesson h2{font-size:44px}.hero-lesson-copy{padding:40px}.hero-lesson p{font-size:14px}.hero-lesson .primary{font-size:13px;margin-top:28px}.meet-card .orb{width:190px;height:190px}.meet-card p{font-size:13px}.subject-card{min-height:175px}.subject-grid.compact{grid-template-columns:repeat(6,minmax(0,1fr))}.subject-card h3{font-size:13px}.lesson-layout{grid-template-columns:190px minmax(0,1fr) 290px;gap:24px}.tutor-panel .orb{width:215px;height:215px}.tutor-caption p{font-size:14px}.stage-heading h1{font-size:36px}.math-workspace>.fraction-canvas{height:410px}.stage-actions .primary{font-size:13px}.stage-actions .subtle-button{font-size:11px}}@media(max-width:1150px){.topbar{padding:0 25px;height:78px;min-height:78px}.page-content{padding:30px 25px 20px}.rail{width:78px;padding:23px 7px}.home-hero-grid{grid-template-columns:minmax(0,2fr) minmax(220px,1fr);gap:16px}.hero-lesson-copy{padding:27px 0 22px 26px}.hero-lesson h2{font-size:29px}.hero-lesson p{font-size:11px;max-width:190px}.hero-lesson .primary{font-size:10px;gap:10px;padding:13px}.meet-card{padding:22px 17px}.meet-card h2{font-size:18px}.hero-lesson{min-height:330px}.top-controls{gap:14px}.page-heading{margin-bottom:25px}.subject-card{padding:18px;min-height:155px}.subject-card h3{font-size:13px}.lesson-layout{grid-template-columns:123px minmax(0,1fr) 210px;gap:12px}.lesson-shell .page-content{padding:0 18px 18px}.stage-heading{padding:25px 22px 0}.stage-heading h1{font-size:25px}.stage-heading p{font-size:11px}.tutor-panel{padding:20px 15px 15px}.tutor-panel .orb{width:155px;height:155px}.mission-steps button{font-size:10px;gap:6px;padding:10px 4px}.mission-rail h2{font-size:18px}.stage-actions{padding:14px 16px;flex-wrap:wrap;gap:12px}.stage-actions>div{margin-left:auto}.math-workspace>.fraction-canvas{height:290px;width:65%}.live-equation{gap:12px;padding-right:14px}.live-equation .fraction{font-size:31px;min-width:30px}.feedback{font-size:10px}.lesson-layout{min-height:calc(100dvh - 158px)}}@media(max-width:900px){.rail{width:70px}.rail nav button{font-size:9px}.topbar{padding:0 22px}.grade-picker{display:none}.wordmark{font-size:18px}.wordmark span{font-size:11px}.home-hero-grid{grid-template-columns:1fr}.hero-lesson{min-height:340px}.hero-lesson-copy{width:48%;padding:30px}.hero-lesson h2{font-size:37px}.hero-lesson p{max-width:260px;font-size:12px}.hero-lesson .primary{font-size:12px}.meet-card{display:none}.subject-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.subject-grid.compact{grid-template-columns:repeat(3,minmax(0,1fr))}.subject-card h3{font-size:12px}.subject-card>span{font-size:9px}.page-heading h1{font-size:29px}.quiet-badge{display:none}.lesson-layout{grid-template-columns:minmax(0,1fr) 220px}.mission-rail{display:none}.lesson-header>span{font-size:9px}.stage-heading h1{font-size:27px}.stage-heading p{font-size:11px}.lesson-layout{min-height:calc(100dvh - 158px)}.lesson-progress-label{display:block!important}.progress-summary{gap:28px;padding:25px}.progress-summary p{font-size:10px}.progress-summary strong{font-size:32px}.source-meta{flex-direction:column;gap:10px}}@media(max-width:650px){.app-shell{height:100dvh;position:relative}.rail{position:absolute;bottom:0;left:0;right:0;width:100%;height:68px;z-index:20;flex-direction:row;padding:0 16px;border-right:0;border-top:1px solid #2c4353;justify-content:center;background:#0b1b29f5;-webkit-backdrop-filter:blur(15px);backdrop-filter:blur(15px)}.brand-symbol,.rail-wordmark{display:none}.rail nav{flex-direction:row;gap:8px;justify-content:space-around}.rail nav button{flex:1;max-width:90px;gap:5px;padding:9px 2px;font-size:8px}.rail nav button svg{width:21px;height:21px}.rail-settings{padding:10px;margin-left:5px;margin-top:0}.rail-settings svg{width:22px}.topbar{height:73px;min-height:73px;padding:0 19px;gap:10px}.wordmark{font-size:17px;letter-spacing:1.1px}.wordmark span{display:block;margin:1px 0 0;font-size:9px;letter-spacing:1.1px}.top-controls{gap:12px}.language-toggle button{font-size:9px;padding:7px 9px}.xp-pill{gap:4px}.xp-pill span{display:none}.xp-pill strong{font-size:12px}.xp-pill svg{width:15px}.avatar{width:30px;height:30px}.page-content{padding:27px 19px 92px}.page-heading{align-items:start;margin-bottom:24px;gap:15px;flex-direction:column}.page-heading h1{font-size:28px;letter-spacing:-1.1px}.page-heading .eyebrow{font-size:8px;margin-bottom:10px}.page-heading p{font-size:11px;margin-top:9px}.hero-lesson{min-height:390px;border-radius:21px}.hero-art{object-fit:cover;object-position:65%;height:72%;top:90px;left:30%;width:90%;opacity:.8}.hero-lesson-copy{width:100%;padding:25px;display:flex;flex-direction:column;align-items:start;height:100%;min-height:390px}.hero-lesson-copy .eyebrow{font-size:8px}.lesson-meta{margin:16px 0 12px;font-size:9px}.hero-lesson h2{font-size:31px;max-width:180px}.hero-lesson p{font-size:11px;max-width:175px}.hero-lesson .primary{font-size:11px;margin-top:auto;z-index:2}.hero-bottom{margin-top:13px;font-size:8px}.subject-grid.compact,.subject-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:11px}.subject-card{padding:17px 15px;min-height:147px;border-radius:15px}.subject-icon{width:33px;height:33px;border-radius:10px;margin-bottom:14px}.subject-icon svg{width:23px;height:23px}.subject-card h3{font-size:11px;margin-right:0}.subject-card>span{font-size:8px;margin-top:6px;line-height:1.7}.card-arrow{top:18px;right:14px;width:13px}.section-title{margin-top:25px}.section-title h2{font-size:17px}.section-title .text-button{font-size:9px}.bottom-note{font-size:8px;align-items:start}.bottom-note button{display:none}.catalogue-view .search{width:100%}.category-tabs{gap:4px}.category-tabs button{font-size:9px;padding:8px 9px}.profile-tabs{flex-wrap:wrap}.profile-tabs button{font-size:9px}.catalogue-note{font-size:9px;align-items:start}.progress-summary{gap:28px;padding:22px;flex-wrap:wrap}.progress-summary p{margin-left:0;font-size:11px}.progress-summary span{font-size:11px}.journey-card{padding:23px}.journey-nodes{flex-direction:column;gap:25px;margin:30px 0 5px}.journey-nodes button{width:100%;flex-direction:row;gap:15px;text-align:left}.journey-nodes button>span{height:43px;width:43px;flex-shrink:0}.journey-nodes strong{font-size:11px}.journey-nodes small{margin-left:auto;font-size:10px}.journey-nodes button:not(:last-child):after{top:43px;left:21px;width:1px;height:25px}.lesson-shell .page-content{padding:0 14px 85px}.lesson-header{height:53px;gap:10px}.lesson-header>span:not(.lesson-progress-label){display:none}.lesson-layout{display:flex;flex-direction:column;gap:16px;min-height:0}.lesson-stage{min-height:540px;border-radius:20px}.stage-heading{padding:25px 22px 0}.stage-heading h1{font-size:26px}.stage-heading p{font-size:11px;max-width:270px}.math-workspace{min-height:240px;padding:0}.math-workspace>.fraction-canvas{height:250px;width:65%}.live-equation{gap:9px;padding-right:18px}.live-equation .fraction{font-size:29px;min-width:27px}.equation-equals{font-size:19px}.segment-controls{gap:6px}.segment-controls button{height:29px;width:29px;font-size:10px}.stage-feedback{padding:0 17px;min-height:60px}.stage-caption{font-size:9px}.stage-actions{padding:13px 17px}.stage-actions>.subtle-button{font-size:9px}.stage-actions>div{width:100%;justify-content:flex-end}.stage-actions .primary{margin-left:auto;min-width:135px}.tutor-panel{padding:20px;position:relative}.tutor-panel .tutor-orb-area{position:absolute;top:13px;left:13px;margin:0}.tutor-panel .orb{width:94px;height:94px}.tutor-panel .voice-label{display:none}.tutor-heading{padding-left:91px;height:20px}.tutor-panel .tutor-caption{border:0;padding:14px 0 14px 91px;min-height:100px}.tutor-caption p{font-size:11px}.tutor-panel .tutor-actions{flex-direction:row;justify-content:center;padding:4px 0 0;gap:15px}.tutor-panel .mic-button{width:34px;height:34px;border-width:3px}.tutor-panel .mic-button svg{width:19px;height:19px}.tutor-panel .tutor-actions>p{font-size:10px}.tutor-panel .voice-setup-note{max-width:280px;font-size:9px;margin:10px auto 0}.ask-form{margin-top:13px}.ask-form input{font-size:11px;padding:13px}.compare-scene{gap:5px}.compare-option .fraction-canvas{height:200px;min-height:200px}.compare-option .fraction{font-size:25px}.finish-view{padding:40px 8px 10px}.finish-view h1{font-size:28px}.finish-view>p{font-size:12px}.equivalence-final{gap:12px;margin:30px 0}.equivalence-final .fraction{font-size:28px}.modal-backdrop{padding:13px}.modal{padding:23px;max-height:92dvh;border-radius:20px}.modal h2{font-size:20px}.toast{bottom:82px;width:calc(100% - 28px);font-size:11px;max-width:500px}.source-notice{font-size:10px}.source-body{font-size:11px}.source-meta{font-size:9px}.meza-dialog .tutor-caption{padding:18px 0}.empty-state{padding:40px 15px}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation:none!important;transition:none!important;scroll-behavior:auto!important}}html[data-motion=reduced] *,html[data-motion=reduced] *:before,html[data-motion=reduced] *:after{animation:none!important;transition:none!important;scroll-behavior:auto!important}:root{color:#181819;background:#f7f5f2;--bg:#f7f5f2;--panel:#fff;--panel2:#f1eef3;--line:#e1dcdf;--muted:#77747c;--peach:#ddff52;--mint:#527c62;--yellow:#b69a45;color-scheme:light}body,.app-shell{background:#f7f5f2}.rail{background:#111;border-right:0;width:92px}.brand-symbol{background:#dfff51;color:#111;border-radius:14px;margin-bottom:31px}.rail nav{gap:12px}.rail nav button{color:#f2f1ee;font-size:10px;gap:7px;padding:13px 2px}.rail nav button.nav-active{background:#dfff51;color:#111}.rail nav button:hover{background:#292929}.rail nav button.nav-active:hover{background:#e6ff7b}.rail-settings{color:#f7f5f2}.rail-wordmark{color:#73716c}.topbar{height:72px;min-height:72px;background:#111;color:#fff;border-bottom:0;padding:0 28px;border-radius:0 0 17px}.wordmark{font-size:21px;letter-spacing:.7px}.wordmark span{font-size:19px;color:#fff;font-weight:500;letter-spacing:-.4px;margin-left:5px}.top-controls{gap:22px}.grade-picker{color:#f5f5f2}.grade-picker select{color:#f5f5f2;font-size:13px}.grade-picker select option{background:#fff;color:#111}.language-toggle{border-color:#666;background:#232323;padding:3px}.language-toggle button{color:#fff;font-size:11px;padding:9px 14px}.language-toggle button.selected{background:#ddff51;color:#111}.xp-pill{color:#ddff51}.xp-pill span{color:#ceceb8}.avatar{background:#e9ddfa;color:#18151d;border:0}.page-content{padding:30px 28px 25px;scrollbar-color:#c4c1be transparent}.page-heading{margin-bottom:25px}.page-heading h1{font-weight:750;letter-spacing:-1.4px;font-size:35px}.page-heading p{color:#817b82;font-size:12px;margin-top:8px}.page-heading .eyebrow{color:#79717f}.home-view>.page-heading p{display:none}.home-hero-grid{display:grid;grid-template-columns:minmax(0,1.34fr) minmax(0,1fr) minmax(0,1.06fr);gap:22px}.hero-lesson{background:#ead7f8;border:0;border-radius:29px;min-height:0;overflow:hidden;box-shadow:0 10px 18px #52394b08}.hero-lesson-copy{position:relative;width:100%;padding:24px 23px;display:flex;flex-direction:column;align-items:start;min-height:435px;height:100%}.subject-pill{padding:9px 14px;border:1px solid #fff7;background:#ffffff38;font-size:12px;border-radius:30px;color:#252025;white-space:nowrap}.hero-lesson h2{font-size:30px;line-height:1.1;font-weight:750;color:#151317;letter-spacing:-1px;margin-top:20px;max-width:100%}.hero-art{position:static;width:100%;height:235px;inset:auto;object-fit:contain;margin:0;pointer-events:none;mix-blend-mode:normal}.hero-lesson .primary{margin-top:auto;width:100%;border-radius:35px;background:#171517;color:#fff;padding:14px 12px;font-size:12px;gap:12px}.hero-lesson .primary:hover{background:#343033}.primary{background:#181719;color:#fff;border-radius:25px;font-size:12px;padding:13px 20px}.primary:hover:not(:disabled){background:#373235}.showcase-note{font-size:9px;color:#726078;align-self:center;margin-top:8px}.map-next-nodes{display:flex;flex-direction:column;justify-content:space-between;gap:18px;padding:10px 0;position:relative}.map-next-nodes:before{content:"";position:absolute;left:-19px;top:70px;bottom:70px;border-left:1.5px dashed #91b65b}.map-lesson-node{position:relative;flex:1;text-align:left;border-radius:25px;background:#fff;padding:19px;min-height:125px;color:#1c1a1e;box-shadow:0 9px 18px #5943370b}.map-lesson-node:disabled{opacity:1}.map-lesson-node:not(:disabled):hover{background:#f2efeb;transform:translateY(-2px)}.map-lesson-node:before{content:"";position:absolute;left:-21px;top:50%;width:8px;height:8px;background:#7ca540;border-radius:50%;box-shadow:0 0 0 5px #f7f5f2}.node-pill{font-size:10px;font-weight:650;border-radius:20px;padding:6px 10px;background:#eef3d6;color:#4a4d39}.map-lesson-node h3{margin-top:14px;font-size:21px;line-height:1.15;font-weight:750;letter-spacing:-.7px;max-width:140px;position:relative;z-index:1}.node-lock{position:absolute;top:18px;right:18px;color:#464146;background:#f5f3f2;border-radius:50%;box-sizing:content-box;padding:6px}.node-symbol{position:absolute;right:17px;bottom:14px;color:#c4a336;opacity:.85}.node-symbol-1{color:#77b6d5}.node-symbol-2{color:#b597d6}.meet-card{background:#edf3d6;border:0;border-radius:29px;padding:24px 18px 22px;min-height:0}.meet-card h2{font-size:30px;line-height:1.2;letter-spacing:-1.1px;color:#151515;font-weight:750;margin:0}.orb img{mix-blend-mode:normal}.meet-card .orb{width:218px;height:218px;margin:6px 0 4px}.meet-card p{font-size:16px;line-height:1.35;color:#292d24;margin:6px 0 0;max-width:230px;letter-spacing:-.3px}.home-mic{height:58px;width:58px;border-radius:50%;display:grid;place-items:center;background:#fffb;color:#111;box-shadow:0 5px 14px #64724c12;margin:17px 0 13px}.home-mic:hover{background:#fff}.home-voice-state{font-size:10px;background:#fff6;padding:9px 15px;border-radius:30px;color:#757e64;margin-top:auto}.subject-category-row{display:grid;grid-template-columns:1fr 1fr 1fr .65fr;gap:17px;margin-top:27px}.category-feature{position:relative;overflow:hidden;display:flex;align-items:center;text-align:left;min-height:110px;padding:21px;border-radius:22px}.category-math{background:#fff1ba}.category-languages{background:#ead9fa}.category-nature{background:#cfedf8}.category-feature h3{position:relative;z-index:1;font-size:18px;font-weight:750;line-height:1.2;max-width:145px;letter-spacing:-.5px}.category-feature img{height:126px;width:126px;object-fit:contain;position:absolute;right:-8px;bottom:-9px;opacity:.9}.category-feature:hover{transform:translateY(-3px)}.all-subjects-link{display:flex;align-items:center;justify-content:center;gap:11px;font-size:13px;text-align:left;font-weight:650}.all-subjects-link:hover{color:#66852c}.bottom-note{margin-top:17px;color:#8b858d;font-size:9px}.bottom-note button{color:#6f6c72}.text-button{color:#605a64}.text-button:hover{color:#64812d}.peach{color:#727f39}.eyebrow{color:#827689}.quiet-badge{color:#786d80;border-color:#ded7e0}.section-title h2{color:#19161c}.section-title h2 span{border-color:#d9d0dd;color:#82748b}.subject-card{background:#fff;border-color:#e5dfe7;box-shadow:0 5px 15px #55414c04}.subject-card:hover{background:#fcfafc;border-color:#aa98b4}.subject-icon{background:#f8edc6;color:#837230}.tone-nature .subject-icon{background:#e5f4e8;color:#5a8666}.tone-languages .subject-icon{background:#eee5f8;color:#9274b1}.tone-society .subject-icon{background:#e3f0f6;color:#5d92a9}.tone-creative .subject-icon{background:#f9e5ef;color:#b57797}.subject-card h3{color:#27212b}.subject-card>span{color:#8b8091}.card-arrow{color:#918795}.category-tabs button,.profile-tabs button{color:#807387}.category-tabs button.active,.profile-tabs button.active{background:#e3edc7;border-color:#d5dfb6;color:#3a482c}.category-tabs button:hover{background:#eeeaef}.search{background:#fff;border-color:#e2dae5;color:#93899a}.search input{color:#27232c}.catalogue-note{color:#8a7f91}.search input::placeholder,input::placeholder{color:#a296a9}input,select,textarea{background:#fff;color:#25212a;border-color:#dcd3e1}.progress-summary{background:#ece1f8;border-color:#e2d5ee}.progress-summary span{color:#7b6b85}.progress-summary strong{color:#3b2a48}.progress-summary small{color:#9c87a8}.progress-summary p{color:#7a6985}.journey-card{background:#fff;border-color:#e5dce8}.journey-card>p{color:#8b7c93}.journey-nodes button>span{background:#f5f1f7;border-color:#cbbbd5;color:#8b6c9e}.journey-nodes button.done>span{background:#e2f0bb;color:#45632c;border-color:#c0d696}.journey-nodes button:not(:last-child):after{background:#d7cadd}.journey-nodes small{color:#a08dac}.lesson-shell .page-content{padding:0 24px 22px}.lesson-header{color:#8f8196}.lesson-header i{background:#b6a9be}.mission-rail{color:#302437}.mission-rail h2>span{color:#a38aad}.mission-steps button{color:#8c7b98}.mission-steps button.current{background:#e8daf4;color:#312338}.step-number{border-color:#d2c2dd}.current .step-number{background:#27212e;border-color:#27212e;color:#fff}.done .step-number{background:#dcefba;border-color:#c0d5a0;color:#456832}.mission-tip{color:#80995f}.mission-tip p{color:#9a8ca3}.lesson-stage{background:#fff;border-color:#e5dce9;border-radius:26px}.stage-heading h1{color:#211b27}.stage-heading p{color:#8d7d99}.live-equation{color:#6c4e82}.equation-equals{color:#b1a1bc}.segment-controls button{background:#f8f4fa;border-color:#d8cbe1;color:#9f87ad}.segment-controls button.selected{background:#dcc6ed;border-color:#b395c8;color:#483151}.stage-feedback .success{background:#eef5df;border-color:#d5e1bc;color:#54703e}.feedback.retry{background:#fff5df;border-color:#ebdcb7;color:#8e743c}.stage-caption{color:#a394ae}.hint-box{color:#907a43}.stage-actions{border-color:#ebe4ef}.subtle-button{color:#8b779b}.subtle-button:hover{color:#4e3d5c}.icon-button{color:#9a83aa}.icon-button:hover{background:#eee5f6;color:#5f3c74}.tutor-panel{background:#eef3df;border-color:#e0e8d1;color:#37472e}.tutor-heading .eyebrow{color:#677654}.tiny-label{color:#899976;border-color:#cdd7be}.voice-label{color:#8e9d7b}.voice-label>span{background:#b5c59f}.voice-label.is-live{color:#587e39}.voice-label.is-live>span{background:#5a873a}.tutor-caption{border-color:#d6dfc9}.tutor-caption p{color:#4c5940}.mic-button{background:#fff;color:#293924;border-color:#dbe7c9}.mic-button.active{background:#dfff70;border-color:#b9d987}.tutor-actions>p{color:#83946e}.voice-setup-note{color:#8b9a7a}.ask-form{background:#ffffffa8;border-color:#d6dfc9}.ask-form input{color:#46563b}.ask-form button{color:#648247}.compare-option.chosen{border-color:#b5c999;background:#f0f5e8}.compare-option>svg{color:#83a45c}.compare-option .fraction{color:#6c4e82}.finish-view{color:#85a154}.finish-view h1{color:#28212e}.finish-view>p{color:#8c7b99}.finish-xp{background:#edf5dc;border-color:#cadbb2;color:#5a783a}.equivalence-final{color:#8b71a0}.modal-backdrop{background:#17101d66;-webkit-backdrop-filter:blur(9px);backdrop-filter:blur(9px)}.modal{background:#faf8fb;border-color:#e3d7eb;box-shadow:0 25px 100px #2b113a25}.modal h2{color:#312139}.settings-form>label{color:#6e587d}.switch-label small{color:#a08aaf}.connection-note{color:#769258}.muted-dot{background:#afa2b7}.muted{color:#9a87a5}.source-notice{background:#fff4d9;border-color:#ecdbb5;color:#9a7d44}.source-meta{color:#a08bb0}.source-meta a{color:#7f9358}.source-body{color:#786185}.source-body p{font-size:13px}.toast{background:#fcf9ff;border-color:#c7b2d6;color:#6c4f81;box-shadow:0 10px 35px #3320401a}.chat-messages p{background:#f0e8f7;color:#77538d}.chat-messages .user{background:#e5efd5;color:#697d4d}.loading-screen{background:#f7f5f2;color:#8e7c9b}.empty-state{color:#9d8aa9}.account-form{display:flex;flex-direction:column;gap:17px}.account-form>label{font-size:12px;display:flex;flex-direction:column;gap:8px;color:#786387}.account-tabs{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:3px}.account-tabs button{padding:9px 12px;font-size:11px;border-radius:20px;color:#947caa}.account-tabs button.active{background:#dfefc3;color:#4b662b}.form-error{padding:13px 15px;background:#fff0eb;border:1px solid #edcabf;border-radius:12px;color:#ab6f5b;font-size:12px;line-height:1.7}.school-welcome{display:flex;align-items:center;flex-direction:column;text-align:center;gap:24px;padding:55px 15px;color:#8f77a5}.school-welcome h1{color:#302238}.school-welcome p{max-width:400px;color:#9a87a8;font-size:14px}.school-view{max-width:1350px;margin:auto}.invite-line{display:flex;align-items:center;gap:15px;background:#eaf1d7;border:1px solid #d5e0be;border-radius:14px;padding:16px 20px;font-size:12px;margin-bottom:25px;color:#697d4e;flex-wrap:wrap}.invite-line code{font-size:15px;letter-spacing:1px;color:#4d622f}.invite-line button{margin-left:auto;padding:5px;color:#7b945a}.school-columns{display:grid;grid-template-columns:1fr 1fr;gap:22px}.school-section{background:#fff;border:1px solid #e7deeb;border-radius:23px;padding:25px}.school-section h2{font-size:20px;margin-bottom:21px;color:#39293f}.class-row{display:flex;width:100%;align-items:center;gap:15px;padding:15px;border:1px solid #eee6f3;border-radius:14px;margin-bottom:11px;text-align:left;color:#977baa}.class-row.active{background:#eee4f8;border-color:#cdb6df}.class-grade{width:40px;height:40px;display:grid;place-items:center;border-radius:12px;background:#e7efd6;color:#6e8654;font-size:18px}.class-row>span:nth-child(2){display:flex;flex-direction:column;gap:6px}.class-row strong{font-size:15px;color:#76568b}.class-row small{font-size:9px;letter-spacing:.4px;color:#a38ab4}.class-row>svg{margin-left:auto}.inline-form{display:flex;align-items:end;gap:10px;margin-top:25px;flex-wrap:wrap}.inline-form label{display:flex;flex-direction:column;gap:8px;font-size:11px;flex:1;min-width:100px;color:#91779f}.inline-form input{width:100%;font-size:12px}.inline-form select{font-size:12px}.inline-form .primary{font-size:11px;gap:6px}.assignment-form{display:flex;flex-direction:column;gap:13px;margin-top:25px}.assignment-form>input,.assignment-form>select{font-size:12px}.assignment-form>label{font-size:11px;color:#9a84ab;display:flex;gap:8px;flex-direction:column}.assignment-form input[type=date]{font-size:12px}.assignment-row{display:flex;align-items:center;gap:12px;padding:15px 0;border-bottom:1px solid #eee7f3;color:#a385b5}.assignment-row>div{display:flex;flex-direction:column;gap:6px}.assignment-row strong{font-size:13px;color:#7a588d}.assignment-row small{font-size:10px;color:#ac92bc}.assignment-row>.text-button{margin-left:auto;font-size:10px}.roster{margin-top:24px}.table-scroll{overflow-x:auto}.roster table{width:100%;border-collapse:collapse;font-size:12px;color:#8b6f9f;text-align:left}.roster th{font-size:10px;color:#b29ac0;font-weight:600;padding:13px 10px;white-space:nowrap}.roster td{padding:16px 10px;border-top:1px solid #eee6f3}.roster>.muted{margin-top:15px}.practice-view{max-width:1150px;margin:auto}.practice-notice{font-size:11px;line-height:1.8;color:#9b844d;background:#fff5dc;border:1px solid #efdfba;padding:15px 18px;border-radius:13px;margin-bottom:25px}.practice-mode-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.practice-mode{padding:25px;text-align:left;border:1px solid #e7dced;border-radius:22px;background:#fff;min-height:180px;color:#ac8dc0}.practice-mode.active{background:#e8d9f6;border-color:#c3a8d6;color:#8f6aa6}.practice-mode h2{font-size:18px;margin-top:24px;line-height:1.4;color:#644579}.practice-mode p{font-size:11px;color:#a589b7;margin-top:10px}.practice-start{display:flex;justify-content:space-between;gap:20px;align-items:center;margin-top:25px;padding:23px;background:#edf3df;border-radius:17px;color:#7e945f;font-size:13px}.practice-session-header{display:flex;align-items:center;justify-content:space-between;margin:27px 0;color:#7c5d92}.practice-session-header h2{font-size:22px}.practice-session-header>span{display:flex;align-items:center;gap:9px;color:#ad8d47}.question-list,.review-list{display:flex;flex-direction:column;gap:20px;margin-bottom:27px}.question{background:#fff;border:1px solid #e8ddee;border-radius:22px;padding:25px}.question h3{font-size:16px;font-weight:650;color:#77578c}.question>div{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:20px}.question label{display:flex;align-items:center;gap:11px;border:1px solid #e7dced;border-radius:12px;padding:14px 16px;font-size:13px;cursor:pointer;color:#9b7aaf}.question label.selected{background:#e8f0d7;border-color:#b9cf96;color:#718c4e}.question label input{accent-color:#7d9f4b}.practice-result{display:flex;align-items:center;gap:20px;padding:25px;background:#eaf2d8;border-radius:22px;color:#809c5c;margin:25px 0}.practice-result h2{font-size:32px}.practice-result p{font-size:12px;color:#91a872}.practice-result>span{margin-left:auto;font-size:12px}.review-list article{padding:22px 25px;background:#fff;border:1px solid #e7ddec;border-radius:20px}.review-list article>div{display:flex;align-items:center;gap:12px;color:#92ae6c;margin-bottom:13px}.review-list article h3{font-size:15px;color:#7b588f}.review-list article p{font-size:12px;line-height:1.8;color:#a087b3;margin-top:7px}.review-list article.wrong-review>div{color:#c58c7e}@media(min-width:1500px){.home-hero-grid{grid-template-columns:1.35fr 1fr 1.05fr;gap:30px}.hero-lesson-copy{min-height:490px;padding:30px}.hero-lesson h2{font-size:40px}.hero-art{height:290px}.hero-lesson .primary{font-size:15px;padding:17px}.meet-card h2{font-size:38px}.meet-card .orb{width:280px;height:280px}.meet-card p{font-size:20px}.map-lesson-node{padding:24px;min-height:135px}.map-lesson-node h3{font-size:27px;max-width:200px}.subject-category-row{margin-top:32px;gap:24px}.category-feature{min-height:132px}.category-feature h3{font-size:23px;max-width:180px}.category-feature img{height:155px;width:155px}.page-heading h1{font-size:43px}.node-symbol svg{width:65px;height:65px}}@media(max-width:1150px){.rail{width:78px}.topbar{padding:0 24px}.home-hero-grid{gap:17px;grid-template-columns:1.33fr 1fr 1fr}.hero-lesson-copy{padding:22px 19px;min-height:407px}.hero-lesson h2{font-size:27px}.hero-art{height:225px}.subject-pill{font-size:10px;padding:8px 11px}.hero-lesson .primary{font-size:10px}.meet-card{padding:24px 15px 18px}.meet-card h2{font-size:27px}.meet-card .orb{width:190px;height:190px}.meet-card p{font-size:15px}.home-mic{width:52px;height:52px}.map-lesson-node{padding:17px;min-height:115px}.map-lesson-node h3{font-size:19px;max-width:120px}.node-pill{font-size:9px}.node-lock{right:14px;top:14px;width:14px;height:14px}.node-symbol{right:13px;bottom:13px}.node-symbol svg{width:39px;height:39px}.map-next-nodes{gap:15px}.subject-category-row{gap:14px}.category-feature{padding:17px;min-height:105px}.category-feature h3{font-size:16px;max-width:115px}.category-feature img{height:108px;width:108px;right:-12px}.all-subjects-link{font-size:11px;gap:8px}.page-heading h1{font-size:32px}}@media(max-width:900px){.rail{width:70px}.wordmark{font-size:18px}.wordmark span{font-size:16px}.home-hero-grid{grid-template-columns:1.35fr 1fr}.meet-card{display:none}.hero-lesson-copy{min-height:430px;padding:25px}.hero-lesson h2{font-size:33px}.hero-art{height:250px}.hero-lesson .primary,.subject-pill{font-size:12px}.map-lesson-node h3{font-size:22px;max-width:155px}.subject-category-row{grid-template-columns:repeat(3,1fr)}.all-subjects-link{grid-column:1/-1;justify-content:flex-end;margin-top:0;font-size:12px}.category-feature h3{font-size:16px}.category-feature img{height:100px;width:100px}.school-columns{grid-template-columns:1fr}.practice-mode-grid{gap:12px}.practice-mode{padding:20px}.practice-mode h2{font-size:15px}.practice-start{font-size:12px;align-items:start}.question>div{grid-template-columns:1fr}}@media(max-width:650px){.rail{width:100%;height:68px;background:#111}.rail nav{gap:3px}.rail nav button{font-size:7px;gap:5px;padding:9px 4px}.rail nav button.nav-active{background:#dfff51;color:#111}.rail-settings{padding:8px;margin-left:2px}.rail-settings svg{width:20px}.topbar{height:69px;min-height:69px;padding:0 18px;border-radius:0 0 15px 15px}.wordmark{font-size:17px}.wordmark span{font-size:9px;letter-spacing:1px;display:block;margin:0}.top-controls{gap:10px}.language-toggle button{font-size:9px;padding:8px 9px}.grade-picker{display:flex;gap:5px}.grade-picker>svg{display:none}.grade-picker select{font-size:10px;padding:5px 0}.xp-pill{display:none}.avatar{width:29px;height:29px}.page-content{padding:26px 18px 93px}.page-heading h1{font-size:29px;letter-spacing:-1.1px}.home-hero-grid{grid-template-columns:1fr;gap:18px}.hero-lesson{border-radius:25px}.hero-lesson-copy{padding:24px;min-height:440px}.subject-pill{font-size:11px}.hero-lesson h2{font-size:35px;max-width:280px;margin-top:18px}.hero-art{position:static;width:100%;height:260px;margin:-4px 0 0;opacity:1;object-position:center}.hero-lesson .primary{width:100%;font-size:13px;padding:15px}.map-next-nodes{display:grid;grid-template-columns:1fr 1fr 1fr;gap:9px;padding:0}.map-next-nodes:before,.map-lesson-node:before{display:none}.map-lesson-node{padding:14px 11px;min-height:145px;border-radius:18px}.map-lesson-node h3{font-size:15px;max-width:95px;margin-top:15px}.node-pill{font-size:8px;padding:5px 7px}.node-lock{top:auto;bottom:13px;right:11px;padding:4px;width:11px;height:11px}.node-symbol{display:none}.subject-category-row{grid-template-columns:1fr 1fr;gap:11px;margin-top:21px}.category-feature{min-height:105px;border-radius:18px;padding:17px}.category-feature h3{font-size:15px;max-width:100px}.category-feature img{height:105px;width:105px;right:-16px;bottom:-11px}.all-subjects-link{grid-column:auto;font-size:12px;justify-content:center;max-width:145px;text-align:left}.all-subjects-link svg{width:18px}.bottom-note{font-size:8px;align-items:start}.lesson-shell .page-content{padding:0 14px 85px}.practice-mode-grid{grid-template-columns:1fr;gap:12px}.practice-mode{min-height:0;display:grid;grid-template-columns:32px 1fr;gap:8px 13px;padding:20px}.practice-mode h2{margin-top:0;font-size:16px}.practice-mode p{grid-column:2;margin-top:0;font-size:10px}.practice-start{flex-direction:column;gap:15px}.practice-start .primary{width:100%}.question{padding:22px}.question h3{font-size:15px}.question label{font-size:12px}.practice-session-header h2{font-size:18px}.practice-notice{font-size:10px}.invite-line{font-size:10px;gap:9px;padding:14px}.invite-line code{font-size:12px}.school-section{padding:21px}.school-section h2{font-size:19px}.assignment-form>input,.assignment-form>select{font-size:11px}.class-row{padding:13px}.class-row strong{font-size:14px}.class-row small{font-size:8px}.inline-form .primary{font-size:10px;padding:12px}.school-welcome{padding:30px 10px}.school-welcome h1{font-size:29px}.school-welcome p{font-size:12px}.roster th{font-size:9px}.roster td{font-size:11px}.account-form{gap:14px}.account-tabs button{font-size:10px;padding:9px 10px}.source-body p{font-size:12px}}.grade-toggle{display:flex;align-items:center;border:1px solid #666;border-radius:30px;background:#232323;padding:3px}.grade-toggle button{padding:8px 17px;border-radius:25px;font-size:12px;color:#fff;white-space:nowrap}.grade-toggle button.selected{background:#ddff51;color:#111;font-weight:750}.hero-art{position:absolute;top:96px;left:18px;width:calc(100% - 36px);height:310px;object-fit:contain}.hero-lesson h2{font-size:34px}.hero-lesson .primary{font-size:14px;position:relative;z-index:2}.hero-lesson-copy{min-height:478px}.node-symbol img{width:78px;height:78px;object-fit:contain}.wordmark{font-size:24px}.wordmark span{font-size:23px}.category-feature h3{font-size:19px}@media(min-width:1500px){.hero-art{top:110px;height:335px;left:23px;width:calc(100% - 46px)}.hero-lesson-copy{min-height:490px}.hero-lesson h2{font-size:40px}.hero-lesson .primary{font-size:15px}.node-symbol img{width:90px;height:90px}.category-feature h3{font-size:23px}}@media(max-width:1150px){.hero-lesson-copy{min-height:440px}.hero-art{top:92px;height:270px;left:17px;width:calc(100% - 34px)}.hero-lesson h2{font-size:29px}.hero-lesson .primary{font-size:11px}.wordmark{font-size:21px}.wordmark span{font-size:19px}.node-symbol img{width:62px;height:62px}.category-feature h3{font-size:16px}.grade-toggle button{font-size:11px;padding:8px 13px}}@media(max-width:900px){.wordmark{font-size:18px}.wordmark span{font-size:16px}.hero-lesson-copy{min-height:455px}.hero-art{top:99px;height:290px}.hero-lesson h2{font-size:33px}.hero-lesson .primary{font-size:12px}.category-feature h3{font-size:16px}}@media(max-width:650px){.hero-lesson-copy{min-height:465px}.hero-art{top:105px;height:305px;left:18px;width:calc(100% - 36px);margin:0}.hero-lesson h2{font-size:35px}.hero-lesson .primary{font-size:13px}.wordmark{font-size:16px}.wordmark span{font-size:8px}.grade-toggle button{font-size:9px;padding:7px 8px}.grade-toggle{padding:2px}.top-controls{gap:8px}.language-toggle button{padding:7px 8px;font-size:8px}.avatar{width:25px;height:25px}.category-feature h3{font-size:15px}}.objective-list{display:flex;flex-direction:column;gap:10px;max-height:42dvh;overflow:auto;margin:20px 0;padding:2px 6px 2px 0}.objective-list>button:not(.primary){display:flex;align-items:start;gap:13px;padding:14px;text-align:left;border:1px solid #e4d9ec;border-radius:13px;background:#fff;color:#9c7eae}.objective-list>button:not(.primary):hover{background:#eee4f6;border-color:#c6add6}.objective-list button>span{font-size:10px;color:#a6b577;background:#f0f4df;padding:5px 7px;border-radius:8px;white-space:nowrap}.objective-list button>p{font-size:12px;line-height:1.7;flex:1;color:#8b6b9d}.objective-list button>svg{margin-top:6px}.objective-list>.primary{margin-top:10px;flex-shrink:0}.source-details summary{font-size:12px;color:#a488b5;cursor:pointer;margin:17px 0}.course-view{max-width:1400px;margin:auto}.course-view>.text-button{margin-bottom:25px}.course-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:24px}.concept-stage{padding:30px;background:#fff;border:1px solid #e5d8ec;border-radius:25px;min-height:560px;display:flex;align-items:start;flex-direction:column}.concept-stage>h2{font-size:20px;line-height:1.6;letter-spacing:-.4px;margin-top:18px;color:#6e4c83}.concept-empty{display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;flex:1;padding:25px;width:100%}.concept-empty img{height:180px;width:180px;object-fit:contain}.concept-empty h3{font-size:22px;color:#7f5b95;margin:18px 0 10px}.concept-empty p{font-size:12px;max-width:330px;color:#a28ab1}.course-source-note{display:flex;align-items:start;gap:7px;font-size:10px;line-height:1.7;color:#b09cb9;padding-top:20px;border-top:1px solid #eee5f3;width:100%}.course-tutor{background:#edf3dd;border:1px solid #dee7cd;border-radius:25px;padding:25px;display:flex;flex-direction:column;align-items:center}.course-tutor .orb{width:190px;height:190px}.course-tutor h2{font-size:24px;color:#58733b}.course-voice-state{font-size:11px;color:#8ea66c;margin-top:10px}.course-tutor>.primary{margin-top:25px;font-size:11px;gap:8px;width:100%}.course-tutor>.ask-form{width:100%;margin-top:auto}.course-transcript{font-size:12px;color:#80965f;line-height:1.7;margin-top:20px;max-height:180px;overflow:auto}.course-messages{width:100%;max-height:250px;overflow:auto;margin:15px 0}.course-messages p{padding:12px;background:#fff9;border-radius:12px;margin:8px 0;font-size:12px;color:#758c54;white-space:pre-wrap}.course-messages .user{background:#dfeabc;color:#6a8248}.concept-explanation{width:100%;flex:1;padding:25px 0;display:flex;flex-direction:column;justify-content:center}.concept-explanation>h3{font-size:24px;letter-spacing:-.6px;color:#9b78b0}.concept-step{margin:24px 0;padding:28px;border-radius:20px;background:#ece0f6;animation:concept-appear .5s ease both}.concept-step>span{font-size:12px;color:#b192c2}.concept-step p{font-size:19px;line-height:1.7;color:#7a4f93;margin-top:10px}.concept-controls{display:flex;align-items:center;justify-content:space-between;gap:10px}.concept-controls>div{display:flex;gap:7px}.concept-controls>div>button{width:27px;height:27px;background:#f1e8f7;color:#a488b7;border-radius:50%;font-size:10px}.concept-controls>div>button.active{background:#7c5b92;color:#fff}@keyframes concept-appear{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}@media(max-width:900px){.course-layout{grid-template-columns:minmax(0,1fr) 235px;gap:15px}.course-tutor{padding:20px}.course-tutor .orb{width:170px;height:170px}.concept-stage{padding:24px}.concept-stage>h2{font-size:17px}.concept-step p{font-size:17px}}@media(max-width:650px){.course-layout{grid-template-columns:1fr}.concept-stage{min-height:430px;padding:23px}.concept-stage>h2{font-size:17px}.concept-empty{padding:20px 8px}.concept-empty img{width:130px;height:130px}.concept-empty h3{font-size:20px}.concept-empty p{font-size:11px}.course-tutor .orb{width:135px;height:135px}.course-tutor>.ask-form{margin-top:15px}.course-tutor>.primary{max-width:300px}.concept-step{padding:22px}.concept-step p{font-size:17px}.objective-list button>p{font-size:11px}.objective-list button>span{font-size:8px}}.panel-controls{display:flex;gap:6px;align-items:center}.panel-controls button{border:1px solid #deded8;border-radius:22px;background:#fff;padding:10px 14px;font:inherit;font-size:12px;min-height:44px;cursor:pointer}.panel-controls .panel-active{background:#d6f862;border-color:#d6f862}html[data-panel=on]{font-size:20px}html[data-panel=on] button{min-height:56px}html[data-panel=on] .app-shell{max-width:none;width:100%;min-height:100dvh;border-radius:0;margin:0}html[data-panel=on] .topbar{min-height:100px}html[data-panel=on] .rail{width:110px}html[data-panel=on] .app-main{margin-left:110px}html[data-panel=on] .rail nav button{min-width:70px;min-height:70px}html[data-panel=on] .lesson-layout{grid-template-columns:minmax(0,1.8fr) minmax(330px,1fr)}html[data-panel=on] .primary{font-size:20px;padding:18px 28px}html[data-panel=on] .lesson-title{font-size:clamp(32px,3vw,64px)}html[data-panel=on] .tutor-caption p{font-size:20px}html[data-panel=on] .fraction-scene{min-height:340px}@media(min-width:1900px){html[data-panel=on] .page-content{padding:44px 64px}html[data-panel=on] .subject-grid{grid-template-columns:repeat(4,minmax(0,1fr))}html[data-panel=on] .home-heading h1{font-size:58px}}@media(max-width:900px){.panel-controls button{font-size:11px;padding:8px}html[data-panel=on] .app-main{margin-left:0}}.year-note{color:#73746e;font-size:13px;line-height:1.6;max-width:1000px}.year-layout{display:grid;grid-template-columns:310px minmax(0,1fr);gap:26px;align-items:start}.year-topics{display:flex;flex-direction:column;gap:8px;max-height:75vh;overflow:auto;padding-right:8px;position:sticky;top:16px}.year-topics>button{text-align:left;display:flex;flex-direction:column;gap:8px;padding:18px;background:#fff;border:1px solid transparent;border-radius:18px;cursor:pointer}.year-topics>button.selected{border-color:#9cb22c;background:#f3f9df}.year-topics span,.year-topics small{color:#74756d;font-size:11px}.year-topics strong{font-weight:500;line-height:1.5;font-size:14px}.year-content{min-width:0;background:#fff;border-radius:28px;padding:30px}.lesson-pending{padding:50px 10px;min-height:340px;color:#77786f}.lesson-pending h2{color:#171914}.authored-lesson>h2{font-size:30px;line-height:1.2}.authored-lesson>p,.worked-example p,.common-mistake p{line-height:1.8;white-space:pre-wrap;font-size:16px}.authored-lesson>h3{font-size:23px;margin-top:32px}.prerequisite,.worked-example,.common-mistake{padding:22px;background:#f6f6f0;border-radius:18px;margin:16px 0}.common-mistake{background:#fff4db}.lesson-storyboard{background:#eee8ff;border-radius:22px;padding:26px;margin:26px 0}.story-step{min-height:140px;animation:concept-in .45s ease}.story-step>span{font-size:50px;color:#9b86d8}.story-step h3{line-height:1.5}.lesson-question{border-top:1px solid #e9e9e2;padding:24px 0}.lesson-question h4{font-size:18px;line-height:1.7;white-space:pre-wrap}.lesson-question>div{display:grid;grid-template-columns:1fr 1fr;gap:10px}.lesson-question button{font:inherit;text-align:left;padding:16px;border:1px solid #e1e2db;background:#fff;border-radius:14px;cursor:pointer;white-space:pre-wrap;line-height:1.5}.lesson-question button.correct{background:#e4f4c6;border-color:#9cbe60}.lesson-question button.incorrect{background:#fff0e4;border-color:#e9b583}.lesson-question>p{display:flex;gap:8px;line-height:1.7}.answer-correct{color:#476c24}.answer-retry{color:#855c2b}@media(max-width:950px){.year-layout{grid-template-columns:240px minmax(0,1fr);gap:14px}.year-content{padding:20px}.lesson-question>div{grid-template-columns:1fr}}@media(max-width:650px){.year-layout{grid-template-columns:1fr}.year-topics{position:static;max-height:280px}.authored-lesson>h2{font-size:25px}}.panel-controls button{color:#181a14}.lesson-meza{padding:24px;border-radius:24px;background:#edf4dc;margin:22px 0}.lesson-meza-header{display:flex;gap:16px;align-items:center}.lesson-meza-header .orb-small{width:80px;height:80px;margin:0;flex:none}.lesson-meza-header h3{font-size:25px;margin:0}.lesson-meza-header p{font-size:14px}.lesson-meza-actions{display:flex;gap:10px;flex-wrap:wrap;margin:16px 0}.lesson-meza-actions .primary{font-size:14px}.lesson-spoken,.lesson-chat{white-space:pre-wrap;line-height:1.8;font-size:16px}.lesson-chat.assistant{background:#fff;padding:18px;border-radius:16px}.lesson-chat.user{color:#66724c;font-size:14px}.lesson-meza .ask-form{margin-top:16px;background:#fff}.lesson-meza .ask-form button{width:auto;padding:10px;font-size:12px}.voice-live-state{font-size:13px;color:#597b26}html[data-panel=on] .app-main{margin-left:0}@media(min-width:1600px){html[data-panel=on] .year-layout{grid-template-columns:400px minmax(0,1fr)}html[data-panel=on] .authored-lesson>p,html[data-panel=on] .worked-example p,html[data-panel=on] .lesson-chat,html[data-panel=on] .lesson-spoken{font-size:clamp(24px,1.4vw,38px)}html[data-panel=on] .lesson-question h4,html[data-panel=on] .lesson-question button{font-size:clamp(24px,1.4vw,38px)}html[data-panel=on] .year-topics strong{font-size:22px}html[data-panel=on] .year-content{padding:48px}html[data-panel=on] .authored-lesson>h2{font-size:48px}}.open-practice>h3{font-size:24px;margin-top:36px}.open-task{padding:24px;border:1px solid #e2e6d8;border-radius:20px;margin:20px 0}.open-task h4{font-size:18px;line-height:1.7;white-space:pre-wrap}.open-task ul{padding-left:22px;line-height:1.8}.open-task label{display:flex;flex-direction:column;gap:10px;font-size:14px}.open-task textarea{resize:vertical;border:1px solid #d8ddcf;border-radius:14px;background:#fafbf7;padding:16px;font:inherit;line-height:1.7;min-height:140px}.open-task-actions{display:flex;gap:10px;flex-wrap:wrap;margin:16px 0}.open-task-actions .primary{font-size:14px}.open-task p{white-space:pre-wrap;line-height:1.8}.textbook-materials{margin:18px 0;padding:20px;border:1px solid #ded6e5;border-radius:20px;background:#fff}.textbook-materials summary{cursor:pointer;font-weight:700}.textbook-materials>p{font-size:13px;margin:14px 0;color:#73647e}.textbook-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:14px}.textbook-grid article{padding:18px;border-radius:14px;background:#f5f1f8}.textbook-grid h3{font-size:15px}.textbook-grid p,.textbook-grid small{font-size:12px;color:#71617c}.textbook-grid a{display:inline-block;padding:12px 12px 0 0;color:#4b6333;font-size:13px}.app-shell{overflow:clip}.rail{min-height:0;overflow-y:auto;scrollbar-width:none}.app-main{min-height:0}.page-content{min-height:0;overscroll-behavior:contain}.studio-source-figure{display:block;width:min(100%,960px);height:auto;margin:18px auto;border-radius:24px;background:#faf8f5;box-shadow:0 8px 30px #32283c14}