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14px;font-size:14px;color:var(--text-secondary);line-height:1.6}.search-result-footer{display:flex;justify-content:flex-end}.search-view-link{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600;color:var(--primary);text-decoration:none!important}.search-view-link:hover{text-decoration:underline!important}.search-empty{text-align:center;padding:60px 20px;color:var(--text-muted)}.search-empty svg{width:48px;height:48px;margin-bottom:12px;opacity:.5}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:9px 18px;border-radius:6px;font-size:13.5px;font-weight:600;cursor:pointer;transition:background-color .15s ease,border-color .15s ease;border:1px solid transparent;text-decoration:none!important}.btn-primary{background:var(--primary);color:#18181b;border-color:var(--primary);font-weight:700}.btn-primary:hover{background:var(--primary-hover);border-color:var(--primary-hover);color:#18181b}.btn-secondary{background:var(--bg-surface-raised);color:var(--text-primary);border-color:var(--border-color)}.btn-secondary:hover{background:var(--bg-surface-hover);color:var(--text-primary)}.btn-outline{background:transparent;color:var(--text-secondary);border-color:var(--border-color)}.btn-outline:hover{background:var(--bg-surface-raised);color:var(--text-primary)}.btn-large{padding:12px 24px;font-size:14.5px;border-radius:6px}.btn-block{width:100%}.btn-reset{color:var(--text-muted);font-size:12.5px;padding:8px 14px}.btn-reset:hover{color:var(--danger);border-color:var(--danger)}.error-banner{background:#fee2e2;border:1px solid #fca5a5;color:#991b1b;padding:12px 18px;border-radius:6px;margin-bottom:20px;font-size:14px}.info-banner{background:var(--bg-surface-raised);border:1px solid var(--border-color);color:var(--text-primary);padding:12px 18px;border-radius:6px;margin-bottom:20px;font-size:14px}.spinner{width:32px;height:32px;border:3px solid var(--border-color);border-top-color:var(--primary);border-radius:50%;animation:spin .8s linear infinite;margin:0 auto 12px}@keyframes spin{to{transform:rotate(360deg)}}.catalog-loading,.path-loading-container,.lesson-loading-state,.search-loading{text-align:center;padding:80px 20px;color:var(--text-muted)}@media(max-width:900px){:root{--sidebar-width: 280px}.catalog-grid,.pager-cards-grid{grid-template-columns:1fr}.lesson-completion-banner{flex-direction:column;align-items:flex-start}.reader-main{padding:20px 20px 40px}.lesson-content.educative-lesson{padding:24px 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