:root {
  --navy: #0B1F3A;
  --navy-2: #0e2747;
  --cyan: #19C3D6;
  --amber: #FFB020;
  --off: #F4F6FA;
  --muted: #9bb0c9;
  --line: #1d3556;
}
* { box-sizing: border-box; }
html, body { height: 100%; margin: 0; }
body {
  font-family: -apple-system, "Segoe UI", Roboto, system-ui, sans-serif;
  background: var(--navy);
  color: var(--off);
  display: flex;
  flex-direction: column;
}

#topbar {
  display: flex; align-items: center; gap: 12px;
  padding: 12px 16px; background: var(--navy-2);
  border-bottom: 1px solid var(--line);
  padding-top: max(12px, env(safe-area-inset-top));
}
.brand { display: flex; align-items: center; gap: 8px; font-weight: 600; }
.brand .logo { color: var(--cyan); }
.brand .name { letter-spacing: .3px; }
.status { margin-left: auto; display: flex; align-items: center; gap: 6px; font-size: 13px; color: var(--muted); }
.dot { width: 9px; height: 9px; border-radius: 50%; display: inline-block; }
.dot.on { background: #2ecc71; box-shadow: 0 0 8px #2ecc71; }
.dot.off { background: #e74c3c; }
#settings-btn { background: none; border: none; color: var(--off); font-size: 18px; cursor: pointer; }

#settings {
  background: var(--navy-2); border-bottom: 1px solid var(--line);
  padding: 12px 16px; display: grid; gap: 10px;
}
#settings.hidden { display: none; }
#settings label { display: grid; gap: 4px; font-size: 12px; color: var(--muted); }
#settings input {
  background: var(--navy); border: 1px solid var(--line); color: var(--off);
  border-radius: 8px; padding: 8px 10px; font-size: 14px;
}
#settings .row { display: flex; gap: 8px; }

button {
  background: var(--cyan); color: #05202a; border: none; font-weight: 600;
  border-radius: 8px; padding: 8px 14px; cursor: pointer; font-size: 14px;
}
button.ghost { background: transparent; color: var(--muted); border: 1px solid var(--line); }

#log { flex: 1; overflow-y: auto; padding: 16px; display: flex; flex-direction: column; gap: 10px; }

.msg { max-width: 85%; padding: 10px 13px; border-radius: 14px; line-height: 1.45; white-space: pre-wrap; word-wrap: break-word; }
.msg.user { align-self: flex-end; background: var(--cyan); color: #05202a; border-bottom-right-radius: 4px; }
.msg.assistant { align-self: flex-start; background: var(--navy-2); border: 1px solid var(--line); border-bottom-left-radius: 4px; }

.tool { align-self: flex-start; max-width: 85%; font-size: 12.5px; color: var(--muted);
  background: #0c2340; border: 1px solid var(--line); border-radius: 10px; padding: 8px 11px; }
.tool .tname { color: var(--cyan); font-weight: 600; }
.tool pre { margin: 6px 0 0; white-space: pre-wrap; word-wrap: break-word; max-height: 220px; overflow: auto; color: #cdddef; }

.approval { align-self: stretch; background: #2a2410; border: 1px solid var(--amber);
  border-radius: 12px; padding: 12px; }
.approval .title { color: var(--amber); font-weight: 700; margin-bottom: 6px; }
.approval pre { background: #14110a; padding: 8px; border-radius: 8px; white-space: pre-wrap; word-wrap: break-word; max-height: 200px; overflow: auto; }
.approval .row { display: flex; gap: 8px; margin-top: 10px; }
.approval .ok { background: var(--amber); color: #2a1d00; }
.approval .no { background: transparent; color: var(--amber); border: 1px solid var(--amber); }
.approval.resolved { opacity: .6; }

#status-line { padding: 0 16px; min-height: 18px; font-size: 12px; color: var(--cyan); }

#composer {
  display: flex; gap: 8px; padding: 12px 16px; background: var(--navy-2);
  border-top: 1px solid var(--line);
  padding-bottom: max(12px, env(safe-area-inset-bottom));
}
#input {
  flex: 1; resize: none; background: var(--navy); color: var(--off);
  border: 1px solid var(--line); border-radius: 12px; padding: 11px 13px; font-size: 15px; max-height: 140px;
}
#send-btn { font-size: 18px; padding: 0 18px; }