.n2-toolbar{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin:12px 0}.n2-toolbar .btn{width:auto}.n2-card{border:1px solid var(--border,#ccc);border-radius:12px;padding:18px;margin:16px 0;background:var(--surface,#fff);color:var(--text,#17212b)}.n2-card h2,.n2-card h3{margin:12px 0}.n2-card p{line-height:1.55;margin:8px 0}.n2-card label,.n2-toolbar label{display:block;font-size:14px;margin:10px 0}.n2-card input:not([type=checkbox]),.n2-card textarea,.n2-card select,.n2-toolbar select{display:block;box-sizing:border-box;width:100%;padding:11px;margin-top:5px;background:#fff;color:#17212b;border:1px solid #8c99a5;border-radius:6px;font:inherit;min-height:44px}.n2-card input[type=checkbox]{width:20px;height:20px;vertical-align:middle}.n2-card .btn{white-space:normal;margin:4px;min-height:44px}.n2-board{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.n2-board section{min-width:0;border-top:1px solid #c9d2dc}.n2-card pre{white-space:pre-wrap;overflow-wrap:anywhere;font-size:14px}.n2-card output{display:block;font-size:26px;font-weight:bold;padding:15px}.n2-card summary{cursor:pointer;min-height:35px;font-weight:600}.n2-card,.newton-bubble{overflow-wrap:anywhere}#n2-error:not(:empty){padding:14px;background:#fff1ef;color:#852012;border:1px solid #b95035;border-radius:8px}.newton-thread{max-height:48vh;overflow-y:auto}.n2-card details{margin:10px 0}.n2-system-map{display:grid;grid-template-columns:repeat(auto-fit,minmax(135px,1fr));gap:8px;margin:14px 0}.n2-system-node{position:relative;min-width:0;padding:12px;border:1px solid #aeb9c4;border-radius:8px;background:#f4f7f9}.n2-system-node span{display:block;font-weight:700}.n2-system-node small{display:block;margin-top:5px;color:#536477;overflow-wrap:anywhere}.n2-system-node--recorded{border-color:#27756b;background:#e9f7f3}.n2-system-node--current{border:2px solid #166985;background:#e8f6fb}.n2-system-node--unknown{border-color:#a76d10;background:#fff6df}.n2-route-label,.n2-trust{display:block;width:max-content;max-width:100%;margin:0 0 8px;padding:3px 7px;border:1px solid #8da1b2;border-radius:999px;color:#425b6e;font-size:11px;font-weight:800;letter-spacing:.04em;text-transform:uppercase}.n2-route-chips{display:flex;flex-wrap:wrap;gap:6px;margin-top:10px}.n2-route-chips .btn{min-height:36px;padding:7px 10px;font-size:13px}.n2-answer-chips{display:flex;flex-wrap:wrap;gap:6px;margin-top:10px}.n2-answer-chips .btn{min-height:36px;padding:7px 10px;font-size:13px}.n2-understood{margin:8px 0 12px;padding:9px 12px;border-left:3px solid #31e1d6;background:#e8fbf9;color:#12333a;font-size:.9rem}@media(max-width:600px){.n2-board{grid-template-columns:1fr}.n2-card{padding:12px}.n2-toolbar .btn{flex:1 1 40%}.n2-system-map{grid-template-columns:1fr}}