:root { color-scheme: dark; }
* { box-sizing: border-box; }
body {
  margin: 0;
  font: 15px/1.5 -apple-system, system-ui, "Segoe UI", Roboto, sans-serif;
  background: #0b0d12;
  color: #e6e9ef;
  padding: 24px;
}
h1 { margin: 0 0 8px; font-size: 22px; }
.sub { color: #8b93a7; margin-bottom: 24px; font-size: 13px; }
.card {
  background: #141821;
  border: 1px solid #232838;
  border-radius: 12px;
  padding: 20px;
  max-width: 520px;
  margin-bottom: 16px;
}
label { display: block; font-size: 12px; color: #8b93a7; margin-bottom: 4px; }
input, button {
  font: inherit;
  padding: 10px 12px;
  border-radius: 8px;
  border: 1px solid #2a3041;
  background: #0e1219;
  color: #e6e9ef;
  width: 100%;
}
input:focus { outline: none; border-color: #4f7cf2; }
.row { margin-bottom: 12px; }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
button {
  background: #4f7cf2;
  border-color: #4f7cf2;
  cursor: pointer;
  font-weight: 500;
  transition: opacity .15s;
}
button:hover { opacity: .9; }
button:disabled { opacity: .4; cursor: not-allowed; }
button.danger { background: #ef4444; border-color: #ef4444; }
button.secondary { background: #2a3041; border-color: #2a3041; }
.status {
  padding: 10px 14px;
  border-radius: 8px;
  font-size: 13px;
  background: #141821;
  border: 1px solid #232838;
  margin-bottom: 16px;
}
.status .dot {
  display: inline-block;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: #ef4444;
  margin-right: 8px;
  vertical-align: middle;
}
.status.connected .dot { background: #22c55e; }
.status.connecting .dot { background: #eab308; }
pre {
  background: #0e1219;
  border: 1px solid #232838;
  border-radius: 8px;
  padding: 12px;
  font-size: 12px;
  max-height: 280px;
  overflow: auto;
  margin: 0;
}
.log-line { color: #8b93a7; white-space: pre-wrap; word-break: break-word; }
.log-line.err { color: #f87171; }
.log-line.ok { color: #4ade80; }
.log-line.tx { color: #93c5fd; }
.log-line.rx { color: #c4b5fd; }