.public-catalog{margin-top:28px}.catalog-list-heading{color:var(--muted);justify-content:space-between;align-items:center;gap:16px;margin-bottom:14px;font-size:.85rem;display:flex}.catalog-list-heading h2{color:var(--text);margin:0;scroll-margin-top:24px;font-size:1rem}.catalog-rows{grid-template-columns:minmax(0,1fr);gap:12px;display:grid}.catalog-row{border:1px solid var(--border);background:var(--surface);border-radius:12px;justify-content:space-between;align-items:center;gap:28px;padding:22px 26px;display:flex}.catalog-row:focus-within,.catalog-row:hover{border-color:var(--mint)}.catalog-row-main{min-width:0}.catalog-row h2{overflow-wrap:anywhere;margin:7px 0 0;font-size:1.22rem;line-height:1.4}.catalog-row h2 a:hover{text-underline-offset:4px;text-decoration:underline}.catalog-row h2 a span{color:var(--mint);font-size:1rem}.catalog-row .problem-tag-list{gap:6px;margin-top:10px}.catalog-row .problem-tag-list a{padding:2px 9px;font-size:.72rem}.catalog-row-meta{flex-direction:column;flex-shrink:0;align-items:flex-end;gap:12px;display:flex}.catalog-row-meta .score-pair{border:0;margin:0;padding:0}.catalog-pagination{border:1px solid var(--success-border);background:var(--success-bg);border-radius:12px;justify-content:space-between;align-items:center;gap:24px;margin-top:28px;padding:26px;display:flex}.catalog-pagination-copy strong{font-size:1rem}.catalog-pagination-copy p{color:var(--muted);margin:5px 0 0;font-size:.85rem}.catalog-pagination-buttons{gap:12px;display:flex}.catalog-page-button{border:1px solid var(--input-border);background:var(--surface);min-height:48px;color:var(--text);white-space:nowrap;border-radius:8px;justify-content:center;align-items:center;gap:12px;padding:12px 18px;font-size:.88rem;font-weight:600;display:inline-flex}.catalog-page-next{background:var(--mint);border-color:var(--mint);color:var(--primary-text)}.catalog-page-button:disabled{cursor:default;opacity:.4}.catalog-page-button:not(:disabled):hover{outline:2px solid var(--mint);outline-offset:2px}@media (max-width:850px){.catalog-pagination{flex-direction:column;align-items:stretch}.catalog-pagination-buttons{justify-content:space-between}}@media (max-width:600px){.catalog-row{flex-direction:column;align-items:flex-start;gap:14px;padding:18px}.catalog-row-meta{flex-flow:wrap;align-items:center}.catalog-list-heading{flex-direction:column;align-items:flex-start;gap:4px}.catalog-pagination{padding:20px}.catalog-pagination-buttons{grid-template-columns:1fr;display:grid}.catalog-page-button{width:100%}}.catalog-search{border:1px solid var(--border);background:var(--surface);border-radius:16px;margin:28px 0;padding:24px}.catalog-search-heading{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;display:flex}.catalog-search-heading label{font-size:1.25rem;font-weight:650}.catalog-search-heading>span{text-transform:uppercase;letter-spacing:.07em;color:var(--mint);font:600 .68rem ui-monospace,monospace}.catalog-search>p{color:var(--muted);margin:8px 0 18px;font-size:.9rem;line-height:1.5}.catalog-search-controls{gap:10px;display:flex}.catalog-search-controls input{border:1px solid var(--border);background:var(--background);min-width:0;color:var(--text);font:inherit;outline-offset:3px;border-radius:8px;flex:1;padding:14px 16px}.catalog-search-controls input:focus-visible{outline:2px solid var(--mint)}.catalog-search-controls input::placeholder{color:var(--muted);opacity:1}.catalog-search-examples{color:var(--muted);flex-wrap:wrap;align-items:center;gap:8px;margin-top:14px;font-size:.78rem;display:flex}.catalog-search-examples button{border:1px solid var(--border);background:var(--background);color:var(--text);font:inherit;cursor:pointer;border-radius:99px;padding:7px 10px}.catalog-search-examples button:disabled{opacity:.5;cursor:wait}.catalog-search-active{border-top:1px solid var(--border);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;margin-top:20px;padding-top:16px;font-size:.85rem;display:flex}.catalog-search-active button{color:var(--text);font:inherit;cursor:pointer;background:0 0;border:0;padding:6px;text-decoration:underline}.catalog-result-excerpt{color:var(--muted);max-width:76ch;margin:8px 0 12px;font-size:.86rem;line-height:1.6}@media (max-width:600px){.catalog-search{padding:18px 14px}.catalog-search-controls{flex-direction:column}.catalog-search-controls input{width:100%}.catalog-search-controls button{justify-content:center}}.problem-sample .lesson-figure{flex-direction:column;gap:12px;min-width:0;max-width:100%;margin:0 0 24px;display:flex}.problem-sample .lesson-figure img{border-radius:14px;align-self:center;width:100%;max-width:720px;height:auto;display:block}.problem-sample .lesson-figure-caption{color:var(--muted);font-size:.9rem;line-height:1.65}.lesson-figure-enlarge{text-underline-offset:4px;align-self:flex-start;align-items:center;min-height:44px;font-size:.85rem;text-decoration:underline;display:inline-flex}.catalog-filters{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;display:grid}.practice-links{color:var(--mint);flex-wrap:wrap;gap:24px;display:flex}@media (max-width:600px){.catalog-filters{grid-template-columns:1fr}}