:root {
  --bg: #0f1419;
  --panel: #1a212b;
  --border: #2a3542;
  --text: #d7e0ea;
  --muted: #8a97a6;
  --accent: #4fa3ff;
  --green: #38d39f;
  --red: #ff5d5d;
  --yellow: #ffce54;
  --msg-user-bg: #1e3a5f;
  --msg-agent-bg: #1e2d1e;
}

body.light {
  --bg: #f0f2f5;
  --panel: #ffffff;
  --border: #d0d7de;
  --text: #1a2332;
  --muted: #6b7a8d;
  --accent: #1a6fd4;
  --green: #1a7a47;
  --red: #c0392b;
  --yellow: #b07d00;
  --msg-user-bg: #dbeafe;
  --msg-agent-bg: #dcfce7;
}

* { box-sizing: border-box; }

html, body { height: 100%; overflow: hidden; }

body {
  margin: 0;
  font-family: -apple-system, system-ui, "SF Pro Text", Segoe UI, sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
  display: flex;
  flex-direction: column;
}

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 20px;
  border-bottom: 1px solid var(--border);
}

h1 { font-size: 16px; margin: 0; }
h2 { font-size: 13px; margin: 0 0 8px; color: var(--muted); text-transform: uppercase; letter-spacing: .04em; }

.conn { display: flex; align-items: center; gap: 8px; }
.dot { width: 10px; height: 10px; border-radius: 50%; background: var(--muted); }
.dot.off { background: var(--red); }
.dot.connecting { background: var(--yellow); }
.dot.on { background: var(--green); }

.theme-btn { font-size: 16px; cursor: pointer; }

.controls {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 20px;
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
}

button {
  background: var(--panel);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 7px 12px;
  cursor: pointer;
  font-size: 13px;
}
button:hover:not(:disabled) { border-color: var(--accent); }
button:disabled { opacity: .4; cursor: not-allowed; }
button.link { background: none; border: none; color: var(--accent); padding: 0; }
button.secondary { background: none; border-color: var(--border); color: var(--muted); }

#micBtn.recording { background: #3a1f1f; border-color: var(--red); color: #ffb0b0; }
body.light #micBtn.recording { background: #fee2e2; border-color: var(--red); color: #7f1d1d; }

select {
  background: var(--panel);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 6px 8px;
}

.controls-row2 {
  gap: 16px;
  font-size: 13px;
}

.chk-label {
  display: flex;
  align-items: center;
  gap: 5px;
  cursor: pointer;
  color: var(--text);
}
.chk-label input { accent-color: var(--accent); }

.metric-item { color: var(--muted); }
.metric-item strong { color: var(--green); }

/* reply dialog */
dialog#replyDialog {
  background: var(--panel);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 20px 24px;
  width: 480px;
  max-width: 90vw;
}
dialog#replyDialog[open] {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
dialog#replyDialog::backdrop { background: rgba(0,0,0,.55); }
dialog#replyDialog h3 { margin: 0; font-size: 14px; }
.ro-label {
  display: flex;
  flex-direction: column;
  gap: 5px;
  font-size: 12px;
  color: var(--muted);
}
.ro-label .muted { font-size: 11px; }
.ro-label textarea {
  background: var(--bg);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 7px 10px;
  font-size: 13px;
  font-family: inherit;
  resize: vertical;
}
.ro-label textarea:focus { outline: none; border-color: var(--accent); }
.dialog-actions { display: flex; gap: 8px; justify-content: flex-end; }

/* active prompt */
.active-prompt {
  padding: 10px 20px;
  border-bottom: 1px solid var(--border);
}
.ap-head { display: flex; gap: 12px; align-items: center; }
#promptBody[hidden] { display: none; }
#promptBody {
  display: block;
  margin: 10px 0 0;
  width: 100%;
  max-height: 220px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 10px;
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
  font-size: 12px;
  color: var(--text);
  resize: vertical;
  box-sizing: border-box;
}
#promptBody:focus { outline: none; border-color: var(--accent); }
#promptBody:disabled { color: var(--muted); cursor: not-allowed; }

/* main layout */
main {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 12px;
  padding: 16px 20px;
  flex: 1;
  min-height: 0;
}
.pane {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px;
  display: flex;
  flex-direction: column;
  min-height: 0;
}

/* dialog transcript */
.dialog-transcript {
  overflow-y: auto;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 4px 0;
}

.msg {
  display: flex;
  flex-direction: column;
  max-width: 80%;
}
.msg-user { align-self: flex-end; align-items: flex-end; }
.msg-agent { align-self: flex-start; align-items: flex-start; }

.msg-label {
  font-size: 10px;
  color: var(--muted);
  margin-bottom: 2px;
  text-transform: uppercase;
  letter-spacing: .04em;
}

.msg-bubble {
  padding: 8px 12px;
  border-radius: 12px;
  font-size: 13px;
  line-height: 1.5;
}
.msg-user .msg-bubble {
  background: var(--msg-user-bg);
  border-bottom-right-radius: 3px;
}
.msg-agent .msg-bubble {
  background: var(--msg-agent-bg);
  border-bottom-left-radius: 3px;
}
.msg-bubble.interim { opacity: .6; font-style: italic; }

/* session log */
.log { font-family: ui-monospace, "SF Mono", Menlo, monospace; font-size: 11px; overflow-y: auto; flex: 1; }
.log .row { padding: 2px 0; border-bottom: 1px solid var(--border); white-space: pre-wrap; }
.log .ev { color: var(--accent); }
.log .tool { color: var(--yellow); }
.log .err { color: var(--red); }
.log .metric { color: var(--green); }
.log .ts { color: var(--muted); }