:root {
  --bg: #0d1117; --panel: #161b22; --border: #2d333b;
  --text: #e6edf3; --muted: #8b949e; --accent: #f97316; --ok: #3fb950;
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font: 15px/1.55 -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  display: flex; flex-direction: column; height: 100vh;
}
header {
  padding: 14px 22px; border-bottom: 1px solid var(--border);
  display: flex; align-items: baseline; gap: 16px;
}
.brand { font-size: 19px; font-weight: 700; }
.brand span { color: var(--accent); }
.tag { color: var(--muted); font-size: 13px; }

main { flex: 1; display: flex; min-height: 0; }
#chat { flex: 1.4; display: flex; flex-direction: column; min-width: 0; }
#messages { flex: 1; overflow-y: auto; padding: 20px; }
.msg {
  max-width: 46em; margin: 0 0 12px; padding: 10px 14px;
  border-radius: 10px; white-space: pre-wrap; word-wrap: break-word;
}
.msg.assistant { background: var(--panel); border: 1px solid var(--border); }
.msg.user { background: #1f2a3a; margin-left: auto; }
.msg.notice { color: var(--muted); font-size: 12.5px; background: none; padding: 2px 14px; }

#composer { display: flex; gap: 10px; padding: 14px 20px; border-top: 1px solid var(--border); }
#input {
  flex: 1; background: var(--panel); border: 1px solid var(--border);
  border-radius: 8px; color: var(--text); padding: 10px 14px; font-size: 15px;
}
#input:focus { outline: none; border-color: var(--accent); }
button {
  background: var(--accent); border: 0; color: #101010; font-weight: 700;
  border-radius: 8px; padding: 10px 18px; cursor: pointer; font-size: 14px;
}
button:disabled { opacity: .45; cursor: default; }

#panel {
  width: 380px; border-left: 1px solid var(--border); padding: 20px;
  overflow-y: auto; background: #10151c;
}
#panel h2 { margin: 0 0 12px; font-size: 15px; color: var(--muted); text-transform: uppercase; letter-spacing: .06em; }
#panel-empty { color: var(--muted); font-size: 13.5px; }

.card { background: var(--panel); border: 1px solid var(--border); border-radius: 10px; padding: 16px; margin-bottom: 14px; }
.card h3 { margin: 0 0 6px; font-size: 16px; }
.chips { display: flex; flex-wrap: wrap; gap: 6px; margin: 8px 0; }
.chip {
  background: #21262d; border: 1px solid var(--border); border-radius: 999px;
  padding: 2px 10px; font-size: 12.5px;
}
.chip.primary { border-color: var(--accent); color: var(--accent); }
.card ul { margin: 8px 0 0; padding-left: 18px; color: var(--muted); font-size: 13.5px; }
.card .rationale { font-size: 13.5px; color: var(--text); margin: 8px 0; }
.card button { width: 100%; margin-top: 10px; }

.steps { list-style: none; padding: 0; margin: 10px 0 0; font-size: 13.5px; }
.steps li { padding: 4px 0; color: var(--muted); }
.steps li.done::before { content: "✓ "; color: var(--ok); }
.steps li.active::before { content: "◌ "; color: var(--accent); }
.steps li.active { color: var(--text); }

.dash-link {
  display: block; text-align: center; background: var(--ok); color: #06130a;
  font-weight: 700; border-radius: 8px; padding: 10px; margin-top: 12px;
  text-decoration: none;
}
.channel-row { display: flex; gap: 8px; margin-top: 10px; }
.channel-row input {
  flex: 1; background: #0d1117; border: 1px solid var(--border);
  border-radius: 8px; color: var(--text); padding: 8px 10px; font-size: 13.5px;
}
.small { font-size: 12px; color: var(--muted); margin-top: 8px; }