:root {
  --cmd-ok: #fafafa;
  --cmd-warn: #d4d4d4;
  --cmd-bad: #f87171;
}

.cmd-page {
  height: 100dvh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.cmd-page main {
  flex: 1;
  min-height: 0;
}

.section--cmd {
  height: 100%;
  padding-top: 10px;
  padding-bottom: 10px;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.cmd-page .panel {
  height: 100%;
  display: flex;
  flex-direction: column;
}

.cmd-page .panel__body {
  flex: 1;
  min-height: 0;
}

.cmd-shell {
  height: 100%;
  display: grid;
  grid-template-columns: minmax(300px, 1fr) minmax(280px, 1fr);
  gap: 1rem;
}

.terminal-panel,
.viz-panel {
  min-height: 0;
}

.terminal__body {
  padding: 12px;
}

.prompt-line,
.boot-line {
  margin: 0 0 0.5rem;
  color: var(--muted);
  font-size: 0.75rem;
  letter-spacing: 0.02em;
}

.signal-feed {
  display: grid;
  gap: 0.45rem;
  max-height: none;
  flex: 1;
  min-height: 0;
  overflow: auto;
  padding-right: 0.3rem;
  margin-bottom: 0.9rem;
}

.signal-row {
  display: grid;
  grid-template-columns: 1fr auto auto;
  align-items: center;
  gap: 0.75rem;
  padding: 0.45rem 0.5rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(0, 0, 0, 0.2);
}

.signal-row strong {
  color: var(--ink);
  font-size: 0.75rem;
  font-weight: 500;
}

.signal-status.ok { color: var(--cmd-ok); }
.signal-status.warn { color: var(--cmd-warn); }
.signal-status.bad { color: var(--cmd-bad); }

.viz-stage {
  min-height: 0;
  height: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg0);
  overflow: hidden;
}

#signalCanvas {
  width: 100%;
  height: 100%;
  display: block;
}

.signal-lines-panel {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg0);
  overflow: hidden;
}

.signal-lines-head {
  padding: 0.4rem 0.6rem;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-size: 0.74rem;
}

.signal-lines-canvas {
  width: 100%;
  height: 140px;
  display: block;
}

.cmd-page .footer {
  padding-top: 12px;
  padding-bottom: 12px;
  flex-shrink: 0;
}

@media (max-width: 900px) {
  .cmd-page {
    height: auto;
    min-height: 100dvh;
    overflow: auto;
  }

  .cmd-page main {
    flex: none;
  }

  .section--cmd {
    height: auto;
    padding-top: 24px;
    padding-bottom: 0;
  }

  .cmd-page .panel {
    height: auto;
  }

  .cmd-shell {
    grid-template-columns: 1fr;
    height: auto;
  }

  .terminal-panel,
  .viz-panel {
    min-height: auto;
  }

  .signal-feed {
    max-height: 36vh;
  }

  .viz-stage {
    min-height: 42vh;
    height: auto;
  }

  .signal-lines-canvas {
    height: 150px;
  }
}

@media (max-width: 560px) {
  .section--cmd {
    padding-left: 16px;
    padding-right: 16px;
  }

  .signal-row {
    grid-template-columns: 1fr auto;
    grid-template-areas:
      "name state"
      "latency latency";
  }

  .signal-row strong { grid-area: name; }
  .signal-status { grid-area: state; }
  .signal-latency { grid-area: latency; color: var(--muted); }
}