:root{font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color:#0f172a;--border:#e2e8f0;--muted:#64748b;--accent:#1e3a8a}*{box-sizing:border-box}body,html{margin:0;height:100%;background:#f1f5f9}.app{display:grid;grid-template-columns:1fr min(380px,34vw);grid-template-rows:auto 1fr;grid-template-areas:"toolbar toolbar" "canvas  panel";height:100vh}.toolbar{grid-area:toolbar;display:flex;flex-wrap:wrap;align-items:center;gap:12px;padding:10px 16px;background:#fff;border-bottom:1px solid var(--border)}.brand{font-size:16px;margin:0;white-space:nowrap;font-weight:700}.spacer{flex:1 1}.canvas{grid-area:canvas;position:relative;min-width:0}.graph-host{position:absolute;inset:0}.panel{grid-area:panel;background:#fff;border-left:1px solid var(--border);overflow-y:auto;padding:16px}button,input,select{font:inherit}.btn{border:1px solid #cbd5e1;background:#fff;border-radius:6px;padding:6px 12px;cursor:pointer}.btn:hover{background:#f8fafc}.btn--primary{background:var(--accent);color:#fff;border-color:var(--accent)}.toggle{display:inline-flex;border:1px solid #cbd5e1;border-radius:6px;overflow:hidden}.toggle button{border:0;background:#fff;padding:6px 14px;cursor:pointer}.toggle button.active{background:var(--accent);color:#fff}.field{padding:6px 10px;border:1px solid #cbd5e1;border-radius:6px}.search{min-width:180px}.detail__header{display:flex;justify-content:space-between;align-items:flex-start;gap:8px}.detail__type{font-size:11px;text-transform:uppercase;letter-spacing:.05em;color:var(--muted);font-weight:700}.detail h2{margin:4px 0 12px}.detail__section{margin-bottom:16px}.detail__section h3{font-size:13px;margin:0 0 6px;color:#334155}.detail__section ul{margin:0;padding-left:18px;font-size:13px;line-height:1.45}.linkbtn{border:0;background:none;padding:0;color:var(--accent);cursor:pointer;text-align:left}.linkbtn:hover{text-decoration:underline}.muted{color:var(--muted);font-size:13px}.form label{display:block;font-size:12px;color:#334155;margin:10px 0 4px;font-weight:600}.form input[type=text],.form select,.form textarea{width:100%;padding:6px 8px;border:1px solid #cbd5e1;border-radius:6px}.form textarea{min-height:72px;resize:vertical}.row{display:flex;gap:8px;margin-top:12px;flex-wrap:wrap}