html, body {
  width: 100%;
  height: 100%;
  margin: 0;
  padding: 0;
  overflow: hidden;
  background: #0b0f14; /* deep night */
  color: #e6edf3;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
}
#ui {
  position: fixed;
  inset: 0 auto 0 0;        /* dock left */
  width: 380px;
  max-height: 100vh;
  overflow-y: auto;
  background: rgba(10, 14, 20, 0.6);
  backdrop-filter: blur(10px);
  padding: 16px;
  border-right: 1px solid rgba(255,255,255,0.08);
  z-index: 10;
}
#glCanvas {
  position: fixed;
  inset: 0;
  display: block;
}
.badge.agent-badge {
  cursor: pointer;
  margin: 2px;
  border: 1px solid rgba(255,255,255,0.15);
}
#chatLog { background: rgba(255,255,255,0.06); }