@font-face{font-family:N76Nunito;src:url('assets/fonts/nunito-latin-400-normal.woff2')}@font-face{font-family:N76Poppins;src:url('assets/fonts/poppins-latin-700-normal.woff2');font-weight:700}
.n76{--ink:#222449;--muted:#62678a;--purple:#6354ee;--cyan:#1abdd7;--gold:#f8c44e;font:16px/1.6 N76Nunito,system-ui,sans-serif;color:var(--ink);min-width:0}.n76 *{box-sizing:border-box}.n76 button,.n76 select,.n76 textarea,.n76 input{font:inherit}.n76 button,.n76 a{touch-action:manipulation}.n76 button{cursor:pointer}.n76 button:disabled{cursor:default;opacity:.5}.n76 :focus-visible{outline:3px solid #edab22;outline-offset:3px}.n76 h1,.n76 h2,.n76 h3,.n76 h4{font-family:N76Poppins,system-ui;line-height:1.3;margin:0 0 12px;color:inherit}.n76 h1{font-size:clamp(24px,3vw,35px)}.n76 h2{font-size:24px}.n76 h3{font-size:19px}.n76 h4{font-size:16px}.n76 p{margin:0 0 14px}.n76 small{font-size:12px}.n76-header{padding:24px;border-radius:22px;background:#fff;display:flex;align-items:center;justify-content:space-between;gap:20px;border:1px solid #e1dffa;margin-bottom:18px}.n76-logo{width:48px;height:48px;object-fit:contain}.n76-brand{display:flex;align-items:center;gap:14px}.n76-eyebrow{font-size:11px;font-weight:800;letter-spacing:.12em;text-transform:uppercase;color:#71689f}.n76-controls{display:flex;gap:10px;align-items:end;flex-wrap:wrap}.n76 label{display:block;font-weight:700;font-size:13px}.n76 select{max-width:100%;background:#f7f6ff;border:1px solid #dcd8fa;border-radius:10px;padding:8px;color:var(--ink)}.n76-layout{display:grid;grid-template-columns:205px minmax(0,1fr) 270px;gap:15px;align-items:start}.n76-rail{background:#fff;border:1px solid #e1dffa;border-radius:20px;padding:16px;position:sticky;top:16px;max-height:82vh;overflow:auto}.n76-progress{display:flex;align-items:center;gap:10px;padding-bottom:14px;margin-bottom:12px;border-bottom:1px solid #eeedf7}.n76-ring{width:48px;height:48px;border-radius:50%;background:conic-gradient(var(--purple) var(--percent),#ebe9ff 0);display:grid;place-items:center;flex-shrink:0}.n76-ring b{width:37px;height:37px;border-radius:50%;background:#fff;display:grid;place-items:center;font-size:12px}.n76-rail button{display:flex;width:100%;gap:10px;text-align:left;align-items:flex-start;background:none;border:0;border-radius:12px;padding:12px 8px;color:var(--ink);line-height:1.35;margin-bottom:4px}.n76-rail button:hover{background:#f5f4ff}.n76-rail button.active{background:#ebe8ff;color:#5142cd}.n76-rail .num{font-size:12px;background:#f0eff9;border-radius:8px;padding:3px 7px}.n76-rail button.active .num{background:var(--purple);color:#fff}.n76-rail button span:last-child{min-width:0}.n76-rail small{display:block;color:var(--muted);margin-top:5px}.n76-main{min-width:0;background:#fff;border:1px solid #e1dffa;border-radius:22px;overflow:hidden}.n76-lessonhead{padding:24px 26px 16px}.n76-lessonhead p{font-size:14px;color:var(--muted)}.n76-actions{display:flex;gap:8px;align-items:center;flex-wrap:wrap}.n76-btn{display:inline-flex;align-items:center;justify-content:center;gap:7px;padding:10px 14px;border:0;background:var(--purple);color:#fff;border-radius:11px;font-weight:800;font-size:14px;text-decoration:none}.n76-btn.soft{background:#eeebff;color:#5142cd}.n76-btn.gold{background:#ffe4a2;color:#684600}.n76-btn.small{padding:7px 10px;font-size:12px}.n76-tabs{display:flex;overflow-x:auto;gap:5px;padding:0 20px 12px;border-bottom:1px solid #eeeafa}.n76-tabs button{white-space:nowrap;flex-shrink:0;border:0;border-radius:9px;background:#f4f3fa;color:#5e6082;padding:9px 12px;font-weight:800;font-size:12px}.n76-tabs button.active{background:var(--purple);color:#fff}.n76-stage{padding:24px 26px;min-height:460px}.n76-card{border:1px solid #e3dff5;border-radius:15px;padding:18px;margin-bottom:16px;min-width:0}.n76-card.tinted{background:#f5f3ff;border-color:#e9e3ff}.n76-card.cyan{background:#eefbfd;border-color:#c9eef3}.n76-card.gold{background:#fffaec;border-color:#f8e2a6}.n76-copy p{line-height:1.8}.n76-two{display:grid;grid-template-columns:1fr 1fr;gap:12px}.n76-vocab{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:0}.n76-vocab>div{padding:13px;background:#f7f7fc;border-radius:10px}.n76-vocab dt{font-weight:800;color:#5848d2}.n76-vocab dd{margin:5px 0 0;font-size:14px}.n76-flow{list-style:none;margin:0;padding:0;display:grid;gap:8px;counter-reset:step}.n76-flow li{counter-increment:step;display:flex;gap:12px;align-items:center;background:#f5f5fb;padding:12px;border-radius:10px}.n76-flow li:before{content:counter(step);color:#6456e8;font-weight:800}.n76-scene{position:relative;background:#f6f7ff;border:1px solid #e4e4f5;border-radius:15px;margin:14px 0;overflow:hidden}.n76-scene img{display:block;width:100%;max-height:300px;object-fit:contain}.n76-scene canvas{position:absolute;inset:0;width:100%;height:100%;pointer-events:none;touch-action:none}.n76-scene canvas.drawing{pointer-events:auto;cursor:crosshair}.n76-tools{display:flex;align-items:center;gap:6px;padding:9px;border-bottom:1px solid #e3dff5;flex-wrap:wrap}.n76-tools button{border:1px solid #dedcf0;background:#fff;border-radius:8px;padding:7px 10px;color:#514871}.n76-tools button.active{background:#6c5cf1;color:#fff}.n76-tools input[type=color]{width:34px;height:30px;border:0;background:transparent}.n76-scene-frame{position:relative;min-height:180px}.n76-schematic{display:grid;grid-template-columns:1fr 1fr;gap:12px;padding:24px}.n76-schematic div{padding:17px;background:#fff;border:2px solid #d9d2fb;border-radius:14px;text-align:center}.n76-schematic b{display:block;color:#5d4bdc}.n76-schematic small{display:block;margin-top:8px}.n76-subtabs{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:18px}.n76-subtabs button{background:#f5f3fc;border:1px solid #ddd6f8;color:#635788;border-radius:12px;padding:10px 13px;font-size:13px;font-weight:800}.n76-subtabs button.active{background:#e8e3ff;border-color:#8979f6;color:#4d3cb7}.n76-bank{display:flex;flex-wrap:wrap;gap:9px;margin:14px 0}.n76-chip{border:2px solid #cfc8f7;background:#eeebff;color:#4e3d99;border-radius:10px;padding:10px 14px;font-weight:800;box-shadow:0 3px 0 #e1dcf6}.n76-chip:nth-child(4n+2){background:#dff7fc;border-color:#a7e3ef;color:#166780}.n76-chip:nth-child(4n+3){background:#fff0c8;border-color:#f0d17b;color:#86600e}.n76-chip:nth-child(4n+4){background:#e4f8e8;border-color:#b8e2c1;color:#286641}.n76-chip.picked{outline:3px solid #6854e8;transform:translateY(-3px)}.n76-chip.done{opacity:.45;box-shadow:none}.n76-map-title{text-align:center;background:#6354ee;color:#fff;border-radius:14px;padding:14px;margin:18px auto;max-width:85%;font-weight:800}.n76-drops{display:grid;grid-template-columns:1fr 1fr;gap:12px}.n76-drop{border:2px dashed #cdc7ec;border-radius:14px;padding:16px;background:#faf9ff;min-height:124px;text-align:left;color:var(--ink);display:flex;flex-direction:column;gap:10px}.n76-drop b{color:#6d62af;font-size:13px}.n76-drop.correct{background:#ecfaf3;border-style:solid;border-color:#9fd8bb}.n76-drop.over{border-color:var(--purple);background:#f0ecff}.n76-feedback{padding:12px 14px;border-radius:11px;background:#f1effb;margin:14px 0;color:#594e82;font-weight:700;font-size:14px}.n76-feedback.good{background:#e9f9f0;color:#226945}.n76-feedback.bad{background:#fff0eb;color:#9c4237}.n76-sort{list-style:none;padding:0;display:grid;gap:9px}.n76-sort li{display:flex;gap:10px;align-items:center;border:1px solid #dcd7ef;border-radius:12px;padding:12px;background:#fafaff}.n76-sort li span{flex:1}.n76-sort button{width:32px;height:32px;border:0;border-radius:8px;color:#5545ca;background:#e9e4ff}.n76-table-wrap{overflow:auto}.n76 table{border-collapse:collapse;width:100%;font-size:14px}.n76 th,.n76 td{text-align:left;padding:12px;border-bottom:1px solid #e2def1}.n76 th{background:#f1edff;color:#5943bb}.n76 td select{width:100%;min-width:140px;white-space:normal}.n76 textarea{width:100%;min-height:110px;resize:vertical;border:1px solid #d5cfec;border-radius:11px;background:#fdfcff;color:var(--ink);padding:12px;margin:8px 0;line-height:1.6}.n76-stepcounter{font-size:12px;font-weight:800;color:#726790;display:block;margin-bottom:15px}.n76-question{font-size:18px;font-weight:800;line-height:1.6}.n76-options{display:grid;gap:10px}.n76-option{display:flex;gap:12px;text-align:left;align-items:start;background:#fafaff;border:1px solid #d8d3ed;border-radius:12px;padding:14px;color:var(--ink)}.n76-option>b{font-size:12px;background:#ece8fb;color:#6553cd;border-radius:7px;padding:3px 7px}.n76-option.correct{background:#e8f8ee;border-color:#83c69c}.n76-option.wrong{background:#fff0ee;border-color:#e9a397}.n76-week{padding:18px;border:1px solid #ded9f3;border-radius:15px;margin-bottom:18px}.n76-week h3{display:flex;justify-content:space-between;gap:12px}.n76-week ol{padding-left:20px}.n76-week li{margin-bottom:13px}.n76-week small{display:block;color:#655d80;font-weight:400}.n76-tag{display:inline-block;background:#f2edff;color:#6650ae;border-radius:99px;padding:4px 9px;font-size:11px;font-weight:800}.n76-pal{background:white;border:1px solid #e1dffa;border-radius:20px;overflow:hidden;position:sticky;top:16px}.n76-palhead{display:flex;gap:12px;align-items:center;padding:17px;border-bottom:1px solid #ece8f5}.n76-bot{width:42px;height:45px;border-radius:16px;background:#7b60f0;display:grid;place-items:center;position:relative}.n76-bot:before{content:'● ●';color:#46d9ed;font-size:15px;font-weight:bold;background:#202645;border-radius:9px;padding:0 5px}.n76-bot:after{content:'';position:absolute;width:6px;height:6px;background:#f9c943;border-radius:50%;top:-5px}.n76-palhead b{font-size:17px}.n76-palhead small{display:block;color:#747693}.n76-chat{max-height:400px;min-height:190px;overflow:auto;padding:14px;font-size:14px}.n76-message{background:#f5f4ff;border:1px solid #e5e0f8;border-radius:14px 14px 14px 4px;padding:13px;margin:0 0 12px;overflow-wrap:anywhere;white-space:pre-wrap}.n76-message.student{background:#6554ea;color:#fff;border:0;border-radius:14px 14px 4px 14px;margin-left:20px}.n76-message small{font-size:11px;display:block;margin-bottom:6px;font-weight:800}.n76-message button{border:0;border-radius:8px;background:#e9e5ff;color:#5845b8;padding:5px 8px;font-size:11px;margin-top:7px;display:block}.n76-suggestions{padding:0 12px 12px;display:flex;flex-wrap:wrap;gap:6px}.n76-suggestions button{font-size:11px;border:1px solid #d9d2f8;border-radius:20px;padding:6px 9px;background:#fcfbff;color:#6453c6}.n76-prompt{padding:12px;border-top:1px solid #ebe7f6}.n76-prompt>div{display:flex;gap:6px}.n76-prompt input{width:100%;min-width:0;border:1px solid #d5cfec;border-radius:9px;padding:10px;font-size:13px;color:var(--ink)}.n76-prompt button{border:0;background:#6655ed;color:#fff;border-radius:9px;padding:8px 11px}.n76-palvideo{display:block;margin:0 13px 13px;width:calc(100% - 26px);background:linear-gradient(120deg,#eee9ff,#e4faff);border:1px solid #cfc6f5;color:#51409d;border-radius:12px;padding:14px;text-align:left;font-weight:800}.n76-palvideo small{display:block;font-weight:400}.n76-foot{font-size:11px;color:#77758c;padding:12px 4px}.n76-pager{display:flex;justify-content:space-between;gap:10px;padding:0 26px 24px}.n76-modal{position:fixed;inset:0;background:#0b0a25df;z-index:100000;display:grid;place-items:center;padding:20px;color:#fff;font-family:N76Nunito,system-ui}.n76-video-shell{width:min(1000px,100%);max-height:95vh;overflow:auto;background:#15123b;border:1px solid #4c4575;border-radius:22px;padding:20px;box-shadow:0 20px 80px #0006}.n76-video-top{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-bottom:16px}.n76-video-top button,.n76-video-controls button{border:0;border-radius:10px;padding:9px 13px;background:#302958;color:white;font:inherit;cursor:pointer}.n76-motion{min-height:360px;position:relative;border-radius:16px;padding:35px;background:radial-gradient(circle at 90% 10%,#1b8a9b55,transparent 50%),linear-gradient(140deg,#221750,#101128);overflow:hidden;display:flex;flex-direction:column;justify-content:center}.n76-motion .big{font:700 clamp(24px,4vw,42px)/1.2 N76Poppins,system-ui;color:#fff;max-width:90%;animation:n76rise .6s both}.n76-motion .caption{font-size:clamp(16px,2vw,21px);line-height:1.8;max-width:850px;margin-top:22px;color:#e9e7fc;animation:n76rise .65s .12s both}.n76-motion .motion-terms{display:flex;gap:12px;flex-wrap:wrap;margin-top:22px}.n76-motion .motion-terms span{border:1px solid #8a7ee3;border-radius:13px;background:#6f56df44;padding:10px 15px;color:#ded6ff;font-weight:800;animation:n76bounce .7s both}.n76-video-controls{display:flex;gap:9px;align-items:center;margin-top:16px;flex-wrap:wrap}.n76-video-progress{flex:1;min-width:120px;height:5px;background:#322950;border-radius:9px}.n76-video-progress i{display:block;height:100%;background:#27cbe1;transition:width .3s}.n76-toast{position:fixed;bottom:22px;left:50%;transform:translateX(-50%);z-index:100002;max-width:90vw;background:#26204e;color:#fff;border-radius:12px;padding:12px 20px;box-shadow:0 5px 30px #17113355}.n76-explore-picks{display:grid;grid-template-columns:1fr 1fr;gap:10px}.n76-explore-picks button{border:1px solid #ddd5f4;background:#f8f6ff;color:#514196;border-radius:12px;padding:14px;text-align:left;font-weight:800}.n76-explore-picks button.active{border-color:#7360e3;background:#ebe5ff}.n76-embed .n76-header{padding:18px}.n76 standalone{background:#f2f0fc}.n76-selfgrade{font-size:12px;color:#786d92}.n76 .notice{border-left:4px solid #2ac4d8;padding:10px 14px;background:#f0fbfd;font-size:13px}.n76 strong{font-weight:800}
@keyframes n76rise{from{opacity:0;transform:translateY(24px)}to{opacity:1;transform:translateY(0)}}@keyframes n76bounce{0%{transform:scale(.75);opacity:0}65%{transform:scale(1.07);opacity:1}100%{transform:scale(1)}}
@media(min-width:1500px){.n76-layout{grid-template-columns:235px minmax(0,1fr) 300px}.n76-stage{padding:28px 32px}}
@media(max-width:1250px){.n76-layout{grid-template-columns:180px minmax(0,1fr)}.n76-pal{grid-column:2;position:static}.n76-chat{max-height:260px}.n76-main{grid-column:2;grid-row:1}.n76-rail{grid-column:1;grid-row:1 / span 2}.n76-header{align-items:flex-start}.n76-lessonhead{padding:22px}.n76-stage{padding:22px}}
@media(max-width:760px){.n76-layout{display:flex;flex-direction:column}.n76-layout>*{width:100%}.n76-header{padding:16px;flex-direction:column;gap:14px}.n76-controls{width:100%}.n76-controls label{flex:1}.n76-controls select{width:100%}.n76-rail{position:static;max-height:none;padding:12px}.n76-rail nav{display:flex;overflow:auto;gap:6px;max-height:none}.n76-rail button{min-width:180px;width:180px;padding:10px;flex-shrink:0}.n76-progress{margin-bottom:8px;padding-bottom:8px}.n76-rail>p{display:none}.n76 h2{font-size:21px}.n76-stage,.n76-lessonhead{padding:18px}.n76-two,.n76-vocab{grid-template-columns:1fr}.n76-tabs{padding:0 12px 12px}.n76-drops{grid-template-columns:1fr 1fr}.n76-drop{padding:11px;min-height:120px;font-size:13px}.n76-schematic{padding:15px;gap:8px}.n76-schematic div{padding:12px;font-size:13px}.n76-question{font-size:16px}.n76-pager{padding:0 18px 18px}.n76-motion{padding:22px;min-height:330px}.n76-modal{padding:10px}.n76-video-shell{padding:14px}.n76-pal{position:static}.n76-lessonhead .n76-actions{margin-top:12px}.n76-table-wrap{max-width:100%}}
@media(prefers-reduced-motion:reduce){.n76 *,.n76-modal *{animation:none!important;transition:none!important}}
@media print{.n76-header,.n76-rail,.n76-pal,.n76-tabs,.n76-actions,.n76-pager,.n76-tools{display:none!important}.n76-layout{display:block}.n76-main{border:0}.n76-stage{padding:0}.n76-card,.n76-week{break-inside:avoid}.n76 textarea{border:1px solid #aaa}.n76{font-size:11pt;color:#161626}.n76 a{color:inherit}}

.n76-video-art{display:block;max-width:100%;width:560px;height:180px;object-fit:contain;margin:18px auto 0;border-radius:15px;background:#f7f5ff;animation:n76rise .65s both}.n76-video-shell .n76-motion{min-height:430px}.n76-video-shell .caption{font-size:clamp(15px,1.7vw,19px);line-height:1.6}@media(max-width:650px){.n76-video-art{height:125px}.n76-video-shell .motion-terms span{font-size:12px;padding:6px 9px}.n76-video-shell .n76-motion{padding:17px}}