.lesson-row{color:var(--ink);text-decoration:none}.lesson-row:hover{border-color:var(--purple);transform:translateY(-1px)}.breadcrumbs{display:flex;gap:9px;align-items:center;flex-wrap:wrap;color:var(--muted);font-size:.82rem;margin-bottom:25px}.breadcrumbs a{color:var(--purple);text-decoration:none;font-weight:800}.lesson-heading{align-items:center}.lesson-editor-layout{display:grid;grid-template-columns:minmax(320px,.8fr) minmax(400px,1.2fr);gap:24px;align-items:start}textarea{width:100%;padding:13px 14px;border:1px solid #d7d5df;border-radius:10px;background:#fff;color:var(--ink);font:inherit;margin-top:7px;resize:vertical}.check-label{display:flex;gap:10px;align-items:center}.check-label input{width:auto;margin:0}.activity-list{display:grid;gap:12px}.activity-card{display:grid;grid-template-columns:45px 1fr auto;align-items:center;gap:14px;padding:16px;border:1px solid var(--line);border-radius:14px}.activity-card h3{margin:4px 0}.activity-card a{font-size:.8rem;color:var(--purple);font-weight:800;text-decoration:none}.activity-icon{width:42px;height:42px;border-radius:12px;background:var(--lav);color:var(--purple);display:grid;place-items:center;font-weight:900}.sticky-editor{position:sticky;top:105px}.compact-grid{align-items:end}.activity-manager{border:1px solid var(--line);border-radius:16px;background:#fff;overflow:hidden}.activity-manager>summary{display:grid;grid-template-columns:48px minmax(0,1fr) auto auto;gap:13px;align-items:center;padding:15px;cursor:pointer;list-style:none}.activity-manager>summary::-webkit-details-marker{display:none}.activity-summary small,.activity-summary strong{display:block}.activity-summary small{font-size:.68rem;letter-spacing:.06em}.activity-summary strong{margin-top:5px}.edit-cue{font-size:.75rem;color:var(--purple);font-weight:900}.activity-edit-form{padding:5px 18px 20px;border-top:1px solid var(--line);background:#fcfbff}.manager-actions{display:flex;justify-content:space-between;gap:12px;margin-top:14px}.btn.danger{background:#fff0f0;color:#a22626;border:1px solid #ffcaca}.admin-activity-list{margin-top:18px}@media(max-width:800px){.lesson-editor-layout{grid-template-columns:1fr}.sticky-editor{position:static}.activity-card{grid-template-columns:42px 1fr}.activity-card>.status{grid-column:2}.activity-manager>summary{grid-template-columns:44px 1fr auto}.activity-manager .edit-cue{display:none}.manager-actions{align-items:stretch;flex-direction:column}}