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.lesson-tabs{border-bottom:1px solid #dce4ec;gap:25px;margin:30px 0;display:flex}#posejdon-root .lesson-tabs button{color:var(--muted);background:0 0;border-bottom:3px solid #0000;align-items:center;gap:9px;padding:15px 3px;font-size:12px;font-weight:600;display:flex}#posejdon-root .lesson-tabs button[aria-selected=true]{color:#275a86;border-bottom-color:#2f6d9f}#posejdon-root .lesson-grid{grid-template-columns:minmax(0,1.7fr) minmax(230px,1fr);gap:24px;display:grid}#posejdon-root .model-card{background:#edf4f6;border:1px solid #dbe8ec;border-radius:13px;padding:18px;overflow:hidden}#posejdon-root .model-caption{justify-content:space-between;align-items:center;gap:10px;display:flex}#posejdon-root .model-caption>span:last-child{color:#57778a;font-size:9px}#posejdon-root .boat-world{height:335px}#posejdon-root .model-controls{flex-wrap:wrap;justify-content:center;gap:7px;display:flex}#posejdon-root .model-controls button{color:#53718a;background:#fff;border:1px solid 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.field-label{text-align:left;width:100%}#posejdon-root .empty-state{text-align:center;color:#6c8aa2;flex-direction:column;justify-content:center;align-items:center;gap:23px;padding:80px 24px;display:flex}#posejdon-root .empty-state h1{color:#274a6b;font-size:30px}#posejdon-root .empty-state p{max-width:520px;font-size:14px}#posejdon-root .empty-inline{color:var(--muted);padding:30px 0;font-size:13px}#posejdon-root .loading-state{color:#5b839e;flex-direction:column;justify-content:center;align-items:center;gap:18px;width:100%;height:100%;min-height:210px;font-size:12px;display:flex}#posejdon-root .spin{animation:1s linear infinite posejdon-spin}#posejdon-root .error-message{color:#993d30;background:#fbece8;border-radius:8px;margin:20px 0;padding:16px 20px;font-size:13px}#posejdon-root .account-notice{background:#e6f1fa;border:1px solid #b9d3e9;border-radius:11px;align-items:center;gap:15px;margin-bottom:30px;padding:20px;display:flex}#posejdon-root .account-notice 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