/* ---- live pages (Act 4): real nodes the learner's scripts drive ---- */
  .live-root{display:block;min-height:100%;font-family:var(--sans);color:#cdd8ea}
  .lv-page{max-width:680px;margin:0 auto;padding:22px 26px 30px}
  .lv-page.lv-dark{max-width:none;background:#0a0d14;min-height:100%}
  .lv-top{display:flex;align-items:center;gap:9px;font-family:var(--mono);font-size:11.5px;
    letter-spacing:.09em;color:#8fa3c0;border-bottom:1px solid var(--edge);padding-bottom:11px;margin-bottom:18px}
  .lv-top.lv-red{color:#e8a0a0;border-color:rgba(255,90,90,.28)}
  .lv-dot{width:8px;height:8px;border-radius:50%;background:var(--accent);box-shadow:0 0 8px var(--accent);flex:none}
  .lv-dot-red{background:#ff5a5a;box-shadow:0 0 8px #ff5a5a}
  .lv-tag{margin-left:auto;font-size:10px;padding:2px 8px;border:1px solid var(--edge);border-radius:20px;color:#7b8aa3}
  .lv-sign{font-family:var(--mono);font-size:24px;letter-spacing:.06em;color:#fff;margin:0 0 12px;
    padding:16px 18px;border:1px dashed var(--edge);border-radius:10px;text-align:center}
  .lv-alarm{font-family:var(--mono);font-size:12px;letter-spacing:.12em;color:#ff7b7b;
    border:1px solid rgba(255,90,90,.35);background:rgba(255,90,90,.07);border-radius:8px;
    padding:9px 14px;text-align:center;margin-bottom:16px;transition:.25s}
  .lv-alarm.lv-off{color:#5d6b80;border-color:var(--edge);background:transparent;opacity:.55}
  .lv-note{font-size:13px;color:#8b99ad;line-height:1.6;margin:0 0 16px}
  .lv-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:9px;margin-bottom:16px}
  .lv-sensor,.lv-btn{font-family:var(--mono);font-size:12px;letter-spacing:.08em;cursor:pointer;
    background:rgba(255,255,255,.04);border:1px solid var(--edge);color:#cdd8ea;
    border-radius:8px;padding:12px 14px;transition:.15s}
  .lv-sensor:hover,.lv-btn:hover{border-color:var(--accent);color:#fff;background:rgba(var(--accent-rgb),.1)}
  .lv-sensor:active,.lv-btn:active{transform:scale(.97)}
  .lv-sensor.lv-hit{border-color:var(--accent);color:var(--accent);background:rgba(var(--accent-rgb),.14)}
  .lv-row{margin-bottom:16px}
  .lv-row .lv-btn{width:100%;padding:14px}
  .lv-form{display:flex;gap:8px;margin-bottom:18px}
  .lv-in{flex:1;min-width:0;font-family:var(--mono);font-size:13px;background:rgba(0,0,0,.35);
    border:1px solid var(--edge);border-radius:8px;padding:11px 13px;color:#e6eefc;outline:none}
  .lv-in:focus{border-color:var(--accent)}
  .lv-log{font-family:var(--mono);font-size:12px;line-height:1.75;color:#7f8ea6;
    background:rgba(0,0,0,.32);border:1px solid var(--edge);border-radius:9px;
    padding:12px 14px;max-height:190px;overflow-y:auto}
  .lv-line{white-space:pre-wrap;word-break:break-word}
  .lv-door{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
    border:1px solid var(--edge);border-radius:12px;padding:22px 24px;margin-bottom:16px;
    background:linear-gradient(160deg,rgba(255,255,255,.035),transparent)}
  .lv-doorlabel{font-family:var(--mono);font-size:13px;letter-spacing:.14em;color:#8fa3c0}
  .lv-state{font-family:var(--mono);font-size:26px;letter-spacing:.1em;color:#ff6b6b}
  .lv-state.lv-open{color:#5ce6a0;text-shadow:0 0 14px rgba(92,230,160,.45)}
  .br-doc{max-width:680px;margin:0 auto;padding:34px 30px;color:#cdd8ea;font-family:var(--sans);line-height:1.6}
  .br-doc a,.br-doc [data-href]{color:var(--accent2);cursor:pointer;text-decoration:none;border-bottom:1px solid rgba(90,160,255,.3)}
  .br-doc a:hover,.br-doc [data-href]:hover{color:var(--accent);border-color:var(--accent)}
  .br-doc h1{font-size:26px;color:#fff;margin-bottom:6px}
  .br-doc h2{font-size:16px;color:var(--ink);margin:22px 0 8px}
  .br-doc p{margin-bottom:12px;color:#aebbd0}
  .br-doc .hero{padding:26px;border-radius:14px;margin-bottom:20px}
  .br-doc .card{border:1px solid var(--edge);border-radius:10px;padding:16px 18px;margin-bottom:12px;background:rgba(255,255,255,.02)}
  .br-doc .mono{font-family:var(--mono);font-size:12.5px;color:var(--accent)}
  .br-doc .search{display:flex;gap:8px;margin:18px 0}
  .br-doc .search input{flex:1;padding:11px 16px;border-radius:24px;background:#0d1424;border:1px solid var(--edge);
    color:var(--ink);font-family:var(--mono);font-size:14px;outline:none}
  .br-doc .search input:focus{border-color:var(--accent)}
  .br-doc .links{display:flex;flex-wrap:wrap;gap:10px;margin-top:8px}
  .br-doc .links [data-href]{border:1px solid var(--edge);border-radius:8px;padding:8px 14px;font-family:var(--mono);
    font-size:12px;border-bottom:1px solid var(--edge)}
  .br-doc .tag{display:inline-block;font-family:var(--mono);font-size:10px;letter-spacing:.1em;color:var(--amber);
    border:1px solid rgba(255,180,84,.4);border-radius:20px;padding:2px 9px;margin-bottom:14px}
  .br-doc .redacted{background:#2a3346;color:transparent;border-radius:3px;user-select:none}