:root {
  color-scheme: dark;
  --bg: #14120f;
  --panel: #1d1a16;
  --ink: #f4efe6;
  --muted: #b3a894;
  --line: #3a342c;
  --accent: #e8c07a;
  --ok: #8fce7a;
  --warn: #e6b35c;
  --err: #e07a6a;
  --card: #26221c;
  font-family: "IBM Plex Sans", "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; background: var(--bg); color: var(--ink); }
#app { display: flex; flex-direction: column; height: 100%; }
.top {
  display: flex; justify-content: space-between; align-items: center;
  padding: 0.75rem 1rem; border-bottom: 1px solid var(--line); background: var(--panel);
}
.brand { display: flex; gap: 0.6rem; align-items: center; }
.controls { display: flex; gap: 0.75rem; }
label { font-size: 0.8rem; color: var(--muted); display: flex; gap: 0.4rem; align-items: center; }
select, textarea, button, input {
  background: var(--card); color: var(--ink); border: 1px solid var(--line); border-radius: 8px;
  padding: 0.4rem 0.6rem; font: inherit;
}
button { cursor: pointer; }
button[type="submit"] { background: var(--accent); color: #1b160f; font-weight: 600; }
main { flex: 1; display: grid; grid-template-columns: minmax(0, 1fr) minmax(280px, 42%); min-height: 0; }
.chat-pane, .live-pane { display: flex; flex-direction: column; min-height: 0; }
.chat-pane { border-right: 1px solid var(--line); }
.commands { display: flex; flex-wrap: wrap; gap: 0.4rem; padding: 0.6rem 0.8rem; border-bottom: 1px solid var(--line); }
.commands button { font-size: 0.75rem; }
.messages { flex: 1; overflow: auto; padding: 1rem; display: flex; flex-direction: column; gap: 0.75rem; }
.msg { padding: 0.7rem 0.85rem; border-radius: 10px; background: var(--card); border: 1px solid var(--line); white-space: pre-wrap; }
.msg.user { border-color: #5a4d32; }
.msg.assistant { border-color: #3d4a32; }
.msg.system { color: var(--muted); font-size: 0.9rem; }
.msg.tool { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 0.8rem; }
.msg.error { border-color: var(--err); }
.cards { padding: 0 0.8rem; display: flex; flex-direction: column; gap: 0.5rem; }
.card {
  background: var(--card); border: 1px solid var(--accent); border-radius: 10px; padding: 0.75rem;
}
.card h3 { margin: 0 0 0.4rem; font-size: 0.95rem; }
.card .row { display: flex; gap: 0.4rem; flex-wrap: wrap; margin-top: 0.5rem; }
.composer { display: flex; gap: 0.6rem; padding: 0.75rem; border-top: 1px solid var(--line); }
.composer textarea { flex: 1; resize: vertical; min-height: 3rem; }
.composer-actions { display: flex; flex-direction: column; gap: 0.4rem; }
.live-head { display: flex; justify-content: space-between; padding: 0.6rem 0.8rem; border-bottom: 1px solid var(--line); color: var(--muted); }
.live { position: relative; flex: 1; background: #0b0a08; }
.live img { width: 100%; height: 100%; object-fit: contain; display: none; }
.live.has-frame img { display: block; }
.live.has-frame #live-empty { display: none; }
#live-empty { position: absolute; inset: 0; display: grid; place-items: center; color: var(--muted); }
.pill { font-size: 0.75rem; padding: 0.15rem 0.5rem; border-radius: 999px; background: #3a2c24; color: var(--warn); }
.pill.on { background: #243524; color: var(--ok); }
.pill.off { background: #3a2424; color: var(--err); }
.hidden { display: none; }
.pair-panel {
  display: flex; flex-wrap: wrap; gap: 0.6rem; align-items: center;
  padding: 0.6rem 1rem; border-bottom: 1px solid var(--line); background: var(--card);
}
.pair-panel.hidden { display: none; }
.pair-panel p { margin: 0; color: var(--muted); font-size: 0.85rem; }
.pair-panel code {
  font-size: 1.05rem; letter-spacing: 0.04em; color: var(--accent);
  background: var(--bg); padding: 0.2rem 0.5rem; border-radius: 6px;
}
.pair-hint {
  flex: 1 1 100%; margin: 0; white-space: pre-wrap; overflow-wrap: anywhere;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 0.8rem; color: var(--ink);
  background: var(--bg); padding: 0.55rem 0.7rem; border-radius: 6px;
}
.pair-alt-label { flex: 1 1 100%; font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.04em; }
.pair-win { opacity: 0.92; }
.auth {
  position: fixed; inset: 0; z-index: 20; display: grid; place-items: center;
  background: rgba(12, 10, 8, 0.86);
}
.auth.hidden { display: none; }
.auth-card {
  width: min(24rem, calc(100% - 2rem));
  background: var(--panel); border: 1px solid var(--line); border-radius: 12px;
  padding: 1.25rem; display: flex; flex-direction: column; gap: 0.75rem;
}
.auth-card h1 { margin: 0; font-size: 1.2rem; }
.auth-card label { flex-direction: column; align-items: stretch; gap: 0.25rem; }
.auth-card .row { display: flex; gap: 0.5rem; }
.auth-error { color: var(--err); margin: 0; font-size: 0.9rem; }
@media (max-width: 860px) {
  main { grid-template-columns: 1fr; grid-template-rows: 1fr 40vh; }
  .chat-pane { border-right: 0; border-bottom: 1px solid var(--line); }
}