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18px;font-size:12px;display:flex}.lesson-breadcrumb strong{color:var(--ui-ink);text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.lesson-bottom-navigation{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin-top:20px;display:grid}.lesson-direction{border:1px solid var(--app-border);background:var(--app-surface);min-height:80px;color:var(--ui-ink);text-align:left;border-radius:17px;align-items:center;gap:13px;padding:16px 18px;transition:transform .2s,border-color .2s,box-shadow .2s;display:flex}.lesson-direction:hover{border-color:#bbaae0;transform:translateY(-2px);box-shadow:0 10px 25px #44336514}.lesson-direction span{gap:4px;min-width:0;display:grid}.lesson-direction small{color:var(--app-muted);text-transform:uppercase;letter-spacing:.08em;font-size:11px;font-weight:750}.lesson-direction 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strong{color:#53389e}.lesson-puc-button{color:#fff;white-space:nowrap;background:#2563eb;border-radius:10px;flex:none;justify-content:center;align-items:center;gap:8px;min-height:42px;padding:10px 15px;font-size:13px;font-weight:750;display:inline-flex}.lesson-puc-button:hover{background:#53389e}.lesson-sources{background:#fbfcfe;border-radius:16px;gap:15px;display:grid;border:1px solid #dfe3e8!important;padding:20px!important}.lesson-sources-heading{align-items:center;gap:12px;display:flex}.lesson-sources-heading>span{color:#027a48;background:#ecfdf3;border-radius:10px;place-items:center;width:38px;height:38px;display:grid}html .app-shell main .lesson-sources-heading h2{color:#252a3b;letter-spacing:-.01em;margin:0;font-size:15px}html .app-shell main .lesson-sources-heading p{color:#667085;margin:2px 0 0;font-size:12px}html .app-shell main .lesson-sources-note{color:#667085;max-width:none;margin:0;font-size:13px;line-height:1.55}.lesson-source-links{grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;display:grid}.lesson-source-links a{color:#344054;background:#fff;border:1px solid #e4e7ec;border-radius:10px;justify-content:space-between;align-items:center;gap:10px;min-width:0;padding:11px 12px;display:flex}.lesson-source-links a:hover{border-color:#b9a7e6}.lesson-source-links a span{min-width:0;display:grid}.lesson-source-links a strong{text-overflow:ellipsis;white-space:nowrap;font-size:12px;overflow:hidden}.lesson-source-links a small{color:#667085;font-size:10px}.lesson-source-links a svg{color:#2563eb;flex:none}html.theme-dark .lesson-top-navigation{background:#272b3beb}html.theme-dark .lesson-all-topics,.theme-dark .lesson-step-buttons button:hover:not(:disabled){color:#d1c3f3;background:#342d4b}html.theme-dark .lesson-direction-next{background:linear-gradient(135deg,#302a46,#263940)}@media (max-width:640px){.lesson-top-navigation{grid-template-columns:1fr auto;gap:10px;top:-16px}.lesson-route-progress{grid-area:2/1/auto/-1}.lesson-route-progress>span{text-align:left}.lesson-all-topics{justify-content:center}.lesson-bottom-navigation{grid-template-columns:1fr}.lesson-bottom-navigation>span:empty{display:none}.lesson-direction{min-height:72px}.lesson-puc-callout{flex-direction:column;align-items:stretch}.lesson-puc-button{width:100%}.lesson-source-links{grid-template-columns:1fr}}@container (max-width:650px){.lesson-puc-callout{flex-direction:column;align-items:stretch}.lesson-puc-button{width:100%}.lesson-source-links{grid-template-columns:1fr}.lesson-source-links a strong{white-space:normal}.lesson-bottom-navigation{grid-template-columns:1fr}.lesson-bottom-navigation>span:empty{display:none}}