.tool-discovery,.lesson-activity{margin-bottom:44px}.tool-search-label{display:block;margin-bottom:8px;color:var(--nt-text);font-weight:800}.tool-search-row{display:flex;gap:10px}.tool-search-row input{min-height:52px;flex:1;border:1px solid var(--nt-border);border-radius:14px;background:#fff;padding:0 16px;color:var(--nt-text);font:700 1rem var(--nt-font-ui)}.tool-search-clear,.tool-category-chip,.recent-clear,.resume-delete{min-height:44px;border:1px solid var(--nt-border);border-radius:12px;background:#fff;color:var(--nt-text);padding:0 14px;font:800 .875rem var(--nt-font-ui);cursor:pointer}.tool-category-chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}.tool-category-chip.is-selected{border-color:var(--nt-primary);background:var(--nt-primary);color:#fff}.tool-search-status{min-height:1.4em;margin:12px 0 0;color:var(--nt-text-muted);font-weight:700}.lesson-activity{display:grid;gap:18px}.lesson-card,.recent-tools{border:1px solid var(--nt-border);border-radius:var(--nt-radius-card);background:linear-gradient(110deg,#fff,#f1f7ff);box-shadow:var(--nt-shadow-card);padding:24px}.lesson-card{display:flex;gap:18px;align-items:flex-start}.lesson-card__icon{display:grid;place-items:center;flex:0 0 52px;width:52px;height:52px;border-radius:16px;background:var(--nt-primary);color:#fff;font-size:26px}.lesson-card h2,.recent-tools h2{margin:0;font-size:1.35rem}.lesson-card p{margin:8px 0 16px;color:var(--nt-text-muted)}.lesson-card__actions{display:flex;flex-wrap:wrap;gap:8px}.lesson-card__actions .button{min-height:44px;padding:0 14px;border-radius:12px;text-decoration:none}.recent-tools .section-head{margin-bottom:14px}.recent-tools__list{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:10px}.recent-tool{display:grid;grid-template-columns:auto 1fr;gap:3px 8px;align-items:center;padding:12px;border:1px solid var(--nt-border);border-radius:14px;background:#fff;color:var(--nt-text);text-decoration:none}.recent-tool span{grid-row:span 2;font-size:24px}.recent-tool small{color:var(--nt-text-muted)}.tool-card[hidden]{display:none!important}@media(max-width:620px){.tool-search-row{flex-direction:column}.tool-search-clear{width:100%}.lesson-card{padding:18px}.lesson-card__actions>*{flex:1 1 130px;text-align:center}}