:root {
  --bg: #0f1115;
  --panel: #171a21;
  --panel-2: #1e222b;
  --line: #2a2f3a;
  --text: #e6e8ee;
  --muted: #8b93a7;
  --accent: #4c8dff;
  --ok: #3ecf8e;
  --warn: #e2b93b;
  --error: #ff6b6b;
  --in: #3ecf8e;
  --out: #4c8dff;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 14px/1.5 ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
}

.app { display: flex; flex-direction: column; height: 100vh; }

header {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 10px 16px;
  border-bottom: 1px solid var(--line);
  background: var(--panel);
  flex-wrap: wrap;
}

header h1 { font-size: 15px; margin: 0; font-weight: 600; letter-spacing: .2px; }
header .spacer { flex: 1; }

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 9px;
  border-radius: 999px;
  font-size: 12px;
  background: var(--panel-2);
  border: 1px solid var(--line);
  color: var(--muted);
}
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--muted); }
.dot.open { background: var(--ok); }
.dot.connecting { background: var(--warn); }
.dot.error { background: var(--error); }

.columns { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; flex: 1; min-height: 0; background: var(--line); }
@media (max-width: 900px) { .columns { grid-template-columns: 1fr; } }

.pane { background: var(--bg); display: flex; flex-direction: column; min-height: 0; overflow: auto; }
.pane > h2 {
  margin: 0;
  padding: 10px 16px;
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .6px;
  color: var(--muted);
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  background: var(--bg);
  z-index: 1;
}

.card { padding: 14px 16px; border-bottom: 1px solid var(--line); }
.card h3 { margin: 0 0 10px; font-size: 12px; text-transform: uppercase; letter-spacing: .5px; color: var(--muted); font-weight: 600; }

label { display: block; margin-bottom: 8px; }
label span { display: block; font-size: 11px; color: var(--muted); margin-bottom: 3px; }

input, textarea {
  width: 100%;
  padding: 7px 9px;
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-radius: 6px;
  color: var(--text);
  font: inherit;
  font-size: 13px;
}
input:focus, textarea:focus { outline: none; border-color: var(--accent); }
textarea { resize: vertical; min-height: 54px; }

.row { display: flex; gap: 8px; flex-wrap: wrap; }
.row > * { flex: 1; min-width: 0; }

button {
  padding: 7px 12px;
  border-radius: 6px;
  border: 1px solid var(--line);
  background: var(--panel-2);
  color: var(--text);
  font: inherit;
  font-size: 13px;
  cursor: pointer;
  white-space: nowrap;
}
button:hover:not(:disabled) { border-color: var(--accent); }
button:disabled { opacity: .45; cursor: not-allowed; }
button.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
button.danger { color: var(--error); }
.actions { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 4px; }

.messages { display: flex; flex-direction: column; gap: 8px; padding: 12px 16px; }
.msg { padding: 8px 10px; border-radius: 8px; border: 1px solid var(--line); background: var(--panel); max-width: 85%; }
.msg.in { align-self: flex-start; border-left: 3px solid var(--in); }
.msg.out { align-self: flex-end; border-right: 3px solid var(--out); }
.msg .meta { font-size: 11px; color: var(--muted); display: flex; gap: 8px; margin-bottom: 3px; }
.msg .text { white-space: pre-wrap; word-break: break-word; }

.log { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 12px; padding: 8px 16px; }
.log-line { display: flex; gap: 8px; padding: 2px 0; border-bottom: 1px solid rgba(255,255,255,.03); }
.log-line .t { color: var(--muted); flex-shrink: 0; }
.log-line.ok .m { color: var(--ok); }
.log-line.warn .m { color: var(--warn); }
.log-line.error .m { color: var(--error); }
.log-line .m { word-break: break-word; }
.log-line .k { color: var(--muted); flex-shrink: 0; width: 58px; }

.empty { color: var(--muted); padding: 16px; font-style: italic; }
.hint { font-size: 11px; color: var(--muted); margin-top: 6px; }
code { background: var(--panel-2); padding: 1px 5px; border-radius: 4px; font-size: 12px; }