:root{
  --bg:#0b1220;
  --panel:#0f172a;
  --card:#111a2e;
  --border:rgba(255,255,255,.10);
  --text:#e5e7eb;
  --muted:#9ca3af;
  --bot:#1f2937;
  --me:#0ea5e9;
  --meText:#06131a;
}
*{box-sizing:border-box}
body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial;
  background: radial-gradient(1100px 650px at 15% 0%, rgba(96,165,250,.18), transparent 60%),
              radial-gradient(900px 520px at 85% 25%, rgba(52,211,153,.12), transparent 60%),
              var(--bg);
  color:var(--text);
  min-height:100vh;
  padding:18px;
}
.wrap{
  max-width:1100px;
  margin:0 auto;
  display:grid;
  grid-template-columns:340px 1fr;
  gap:14px;
}
.panel, .chatCard{
  background: linear-gradient(180deg, rgba(255,255,255,.045), rgba(255,255,255,.02));
  border:1px solid var(--border);
  border-radius:16px;
  box-shadow: 0 10px 30px rgba(0,0,0,.25);
  overflow:hidden;
}
.panelHeader, .chatHeader{
  padding:14px 14px 12px 14px;
  border-bottom:1px solid var(--border);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  background:rgba(0,0,0,.10);
}
.title{font-weight:900;font-size:14px}
.sub{color:var(--muted);font-size:12px;margin-top:2px}
.pill{
  font-size:12px;
  color:var(--muted);
  border:1px solid var(--border);
  padding:6px 10px;
  border-radius:999px;
  background:rgba(255,255,255,.03)
}
.panelBody{padding:14px}
label{display:block;font-size:12px;color:var(--muted);margin-bottom:6px}
input, textarea{
  width:100%;
  background:rgba(0,0,0,.25);
  border:1px solid var(--border);
  color:var(--text);
  padding:10px 12px;
  border-radius:12px;
  outline:none;
}
textarea{resize:vertical}
.btn{
  width:100%;
  margin-top:10px;
  border:1px solid rgba(96,165,250,.38);
  background: rgba(96,165,250,.16);
  color:var(--text);
  padding:10px 14px;
  border-radius:12px;
  cursor:pointer;
  font-weight:900;
}
.btn:hover{background: rgba(96,165,250,.24)}
.hint{
  color:var(--muted);
  font-size:12px;
  margin-top:12px;
  line-height:1.35;
}
.hint code{color:#cbd5e1}
.chatCard{
  display:flex;
  flex-direction:column;
  height: calc(100vh - 36px);
  min-height: 640px;
}
.threadTitle{font-weight:900;font-size:14px}
.threadSub{color:var(--muted);font-size:12px;margin-top:2px}
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  border:1px solid var(--border);
  padding:4px 8px;
  border-radius:999px;
  background:rgba(255,255,255,.03);
  color:var(--muted);
  font-size:12px;
}
.dot{width:9px;height:9px;border-radius:50%}
.dot.idle{background:rgba(156,163,175,.7)}
.dot.live{background:rgba(52,211,153,.9)}
.chat{
  flex:1;
  padding:14px;
  overflow:auto;
  background:rgba(0,0,0,.10);
}
.msgRow{
  display:flex;
  gap:10px;
  margin:10px 0;
  align-items:flex-end
}
.msgRow.me{justify-content:flex-end}
.avatar{
  width:34px;height:34px;border-radius:50%;
  background:#7c3aed;
  display:flex;align-items:center;justify-content:center;
  font-weight:900;color:white;font-size:14px;
  flex:0 0 auto;
}
.bubble{
  /* max-width:min(680px, 85%); */
  padding:10px 12px;
  border-radius:14px;
  border:1px solid var(--border);
  white-space:pre-wrap;
  line-height:1.35;
  font-size:14px;
  background:var(--bot);
  color:var(--text);
  word-break: break-all;
}
.me .bubble{
  background: linear-gradient(180deg, rgba(14,165,233,.92), rgba(34,211,238,.86));
  color: var(--meText);
  border-color: rgba(255,255,255,.08);
}
.meta{
  color:var(--muted);
  font-size:11px;
  margin-top:6px;
}

.composer{
  border-top:1px solid var(--border);
  background:rgba(0,0,0,.10);
  padding:12px;
  display:flex;
  gap:10px;
  align-items:flex-end;
}
.composer textarea{
  min-height:44px;
  height:44px;
  max-height:120px;
}
.sendBtn{
  border:1px solid rgba(52,211,153,.35);
  background: rgba(52,211,153,.14);
  color:var(--text);
  padding:10px 14px;
  border-radius:12px;
  cursor:pointer;
  font-weight:900;
  white-space:nowrap;
}
.sendBtn:hover{background: rgba(52,211,153,.22)}
.statusLine{
  padding:10px 14px;
  color:var(--muted);
  font-size:12px;
  border-top:1px solid var(--border);
}
@media (max-width: 980px){
  .wrap{grid-template-columns:1fr}
  .chatCard{height:auto;min-height:640px}
}