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0;padding-left:20px}.open-mistakes li{margin:4px 0}.open-off-task{color:var(--danger);font-weight:600}.open-mistakes s{color:var(--danger)}.open-task textarea{width:100%;font:inherit;border:1px solid var(--border);resize:vertical;border-radius:8px;margin:8px 0;padding:10px 12px}.open-prompt{margin:4px 0}.lesson-details{background:var(--accent-soft);border-radius:10px;margin-top:8px;padding:8px 14px}.lesson-details summary{cursor:pointer;font-weight:700}.lesson-details p{margin:8px 0 2px}.vocab-grid{grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:12px;margin-top:10px;display:grid}.vocab-card{border:1px solid var(--border);border-radius:12px;flex-direction:column;gap:6px;padding:12px;display:flex}.vocab-card.learned{border-color:var(--ok);background:var(--ok-soft)}.vocab-head{align-items:center;gap:10px;display:flex}.vocab-head>div{flex:1}.vocab-emoji{font-size:26px}.vocab-example{margin:0;font-style:italic}.vocab-review{font-size:14px}.vocab-review .gap{width:110px}.vocab-review .ok{color:var(--ok);font-weight:700}.vocab-review .bad{color:var(--danger);font-weight:700}.vocab-card>button{align-self:flex-start}.lesson-pager{justify-content:space-between;align-items:center;margin:8px 0 24px;display:flex}@media (width<=860px){.lesson-layout{grid-template-columns:1fr}.lesson-nav{flex-direction:row;gap:8px;padding-bottom:4px;position:static;overflow-x:auto}.lesson-nav>div{flex-shrink:0}.lesson-nav-group{display:none}.lesson-nav-item{background:var(--card);border:1px solid var(--border);white-space:nowrap}.lesson-nav-item small{display:none}.lesson-nav-item .lesson-icon{width:28px;height:28px;font-size:15px}.lesson-progress{width:auto}.lesson-progress-bar{width:80px}.lesson-header{flex-wrap:wrap}.lesson-hero{padding:26px 18px}.lesson-hero h1{font-size:26px}}