.lessons-main{display:grid;gap:20px}.lessons-header h2{margin:0 0 6px;font-size:1.6rem}.lessons-header p{margin:0;color:var(--muted)}.lessons-pagination{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:20px}.lessons-pagination-status{color:var(--muted);font-weight:700}.lessons-layout{display:grid;grid-template-columns:minmax(220px,260px) 1fr;gap:24px}.lessons-sidebar{position:sticky;top:110px;align-self:start;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:20px;box-shadow:0 12px 24px rgba(22,16,8,0.08)}.sidebar-block + .sidebar-block{margin-top:18px;padding-top:18px;border-top:1px dashed var(--line)}.sidebar-block h2{font-size:1.1rem;margin:0 0 10px}.lessons-sidebar input[type="search"]{width:100%;border:1px solid var(--line);background:#fff;border-radius:12px;padding-block:10px;padding-inline-start:42px;padding-inline-end:12px;font-size:0.95rem;text-align:right}.lessons-sidebar input[type="search"]::-webkit-search-cancel-button{-webkit-appearance:none;appearance:none;display:none}.sidebar-search-bar{display:flex;flex-wrap:nowrap;gap:10px;align-items:center;width:100%;background:transparent;box-shadow:none}.sidebar-search-input-wrap{position:relative;flex:1 1 auto;min-width:0;width:100%;background:transparent}.sidebar-actions{display:flex;flex-wrap:wrap;gap:10px}.sidebar-topic-browser{display:grid;gap:10px;margin-bottom:18px}.sidebar-topic-back{display:inline-flex;align-items:center;width:fit-content;color:var(--accent-dark);font-weight:700;font-size:0.9rem}.sidebar-topic-current{font-weight:700;color:var(--accent-dark)}.sidebar-topic-trail{display:flex;flex-wrap:wrap;gap:6px;font-size:0.82rem;color:var(--muted)}.sidebar-topic-trail a{color:var(--muted)}.sidebar-topic-list{display:grid;gap:8px;margin-top:0}.sidebar-topic-link{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:10px 12px;border:1px solid var(--line);border-radius:12px;background:#fff;font-weight:700;color:var(--accent-dark);transition:border-color 0.2s ease,background 0.2s ease,box-shadow 0.2s ease}.sidebar-topic-link:hover{border-color:#d4b78e;box-shadow:0 8px 18px rgba(111,74,29,0.08)}.sidebar-topic-link.is-active{background:#f8ead3;border-color:#c79d64}.sidebar-topic-link strong{color:var(--accent);font-size:1rem;line-height:1}.sidebar-topic-empty{padding:10px 12px;border:1px dashed var(--line);border-radius:12px;color:var(--muted);background:#fffaf2}.sidebar-actions-bottom{margin-top:18px}.sidebar-actions .primary,.sidebar-actions .ghost{display:inline-flex;align-items:center;justify-content:center;min-width:96px;flex:1 1 140px}.sidebar-icon-btn{width:44px;min-width:44px;height:44px;padding:0;border-radius:12px;flex:0 0 44px}.sidebar-icon-btn svg{width:19px;height:19px;display:block}.sidebar-search-submit-btn{display:inline-flex;align-items:center;justify-content:center;width:40px;min-width:40px;height:40px;flex:0 0 40px;border-radius:999px;background:transparent;color:var(--accent-dark);box-shadow:none}.sidebar-search-submit-btn:hover{background:transparent;color:var(--accent)}.sidebar-inline-clear-btn{position:absolute;inset-inline-start:8px;top:50%;transform:translateY(-50%);width:28px;height:28px;border:none;background:transparent;color:#8c7350;display:inline-flex;align-items:center;justify-content:center;padding:0;border-radius:999px;cursor:pointer}.sidebar-inline-clear-btn:hover{background:#f3eadb;color:#6f4a1d}.sidebar-inline-clear-btn svg{width:15px;height:15px;display:block}.lesson-search-matches{border-top:1px dashed var(--line);padding-top:10px;display:grid;gap:8px}.lesson-search-matches h4{margin:0;font-size:0.95rem;color:var(--accent-dark)}.lesson-timeline-hit{display:grid;grid-template-columns:auto 1fr auto;gap:8px;align-items:center;border:1px solid var(--line);border-radius:10px;padding:8px 10px;background:#fff;color:inherit;text-decoration:none}.lesson-timeline-hit:hover{border-color:#d4b78e;background:#fff9ef}.lesson-timeline-hit-time{font-weight:700;color:var(--accent-dark);white-space:nowrap;font-variant-numeric:tabular-nums}.lesson-timeline-hit-text{color:var(--muted);min-width:0}.lesson-timeline-hit-action{font-size:0.8rem;font-weight:700;color:var(--accent-dark);white-space:nowrap}.lesson-timeline-more,.lesson-search-snippet{color:var(--muted);font-size:0.9rem}@media (max-width:720px){.lessons-layout{grid-template-columns:1fr}.lessons-sidebar{position:static}.sidebar-topic-trail{line-height:1.5}.sidebar-actions .primary,.sidebar-actions .ghost{flex:1 1 140px}.lesson-timeline-hit{grid-template-columns:1fr;gap:4px}}