:root {
  --bg: #0f1216; --card: #171c22; --line: #263040;
  --fg: #e7edf3; --muted: #93a1b0; --accent: #3a86ff;
  --go: #2fbf71; --stop: #e5484d; --off: #5a6672;
}
* { box-sizing: border-box; }
body {
  margin: 0; font: 15px/1.45 system-ui, sans-serif;
  background: var(--bg); color: var(--fg);
}
header {
  display: flex; align-items: center; gap: 12px;
  padding: 14px 20px; border-bottom: 1px solid var(--line);
}
h1 { font-size: 18px; margin: 0; }
h2 { font-size: 14px; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); margin: 0 0 12px; }
.pill { font-size: 12px; padding: 3px 10px; border-radius: 999px; }
.pill.off { background: var(--off); }
.pill.on { background: var(--go); }
main, #login { max-width: 760px; margin: 20px auto; padding: 0 16px; display: grid; gap: 16px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 18px; }
input {
  background: #0d1014; border: 1px solid var(--line); color: var(--fg);
  padding: 10px 12px; border-radius: 8px; font-size: 15px; width: 100%;
}
form { display: flex; gap: 8px; }
form input { flex: 1; }
button {
  background: var(--accent); color: #fff; border: 0; border-radius: 8px;
  padding: 10px 16px; font-size: 15px; cursor: pointer;
}
button:disabled { opacity: .45; cursor: not-allowed; }
button.go { background: var(--go); }
button.stop { background: var(--stop); }
.error { color: var(--stop); min-height: 1em; margin: 8px 0 0; }
.devices { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.devices li {
  display: flex; align-items: center; gap: 10px; padding: 10px 12px;
  border: 1px solid var(--line); border-radius: 8px; cursor: pointer;
}
.devices li.sel { border-color: var(--accent); background: #10202f; }
.devices .dot { width: 9px; height: 9px; border-radius: 50%; background: var(--off); }
.devices .dot.idle { background: var(--go); }
.devices .dot.busy, .devices .dot.dialing, .devices .dot.in_call, .devices .dot.ringing { background: #f5a524; }
.devices .meta { margin-left: auto; color: var(--muted); font-size: 13px; }
.dial { display: grid; gap: 12px; }
.keypad { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; max-width: 280px; }
.keypad button { background: #0d1014; border: 1px solid var(--line); }
.actions { display: flex; gap: 8px; flex-wrap: wrap; }
.status { color: var(--muted); }
pre { white-space: pre-wrap; word-break: break-word; color: var(--muted); font-size: 12px; max-height: 220px; overflow: auto; margin: 0; }