.sources-intro{max-width:900px;padding:30px 0;line-height:1.7;color:var(--muted)}.sources-intro h1{color:var(--ink);font-size:clamp(28px,4vw,42px);line-height:1.2}.source-controls{display:flex;gap:18px;flex-wrap:wrap}.source-controls label{display:grid;gap:8px;font-size:13px;flex:1;min-width:190px}.source-controls input,.source-controls select{border:1px solid var(--line);border-radius:4px;background:white;padding:12px;font:inherit;width:100%;box-sizing:border-box}.source-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:18px}.source-card{background:white;border:1px solid var(--line);border-radius:5px;padding:22px;overflow-wrap:anywhere}.source-card h2{font-size:21px;margin:12px 0}.source-card p{font-size:13px;line-height:1.7;color:var(--muted)}.source-card .source-kind{font:11px monospace;color:var(--green)}.source-card a{color:var(--green);font-size:14px;display:block;margin-top:15px}.source-card .source-evidence{font-size:11px}.source-card .source-note{font-size:12px}#sourceCount{font-size:13px;color:var(--muted);margin:24px 0}@media(max-width:500px){.source-grid{grid-template-columns:1fr}.topbar .button{font-size:11px}}