:root {
  color-scheme: dark;
  --bg: #111415;
  --panel: #1c2224;
  --panel-soft: #242b2e;
  --text: #eff4f2;
  --muted: #9fb0aa;
  --line: #344044;
  --accent: #33c7a2;
  --accent-strong: #58ddbb;
  --danger: #ff716b;
  --warn: #f4c45f;
  --button: #2d6f88;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

button,
input,
textarea,
select {
  font: inherit;
}

button {
  min-height: 38px;
  border: 1px solid transparent;
  border-radius: 6px;
  background: var(--button);
  color: white;
  cursor: pointer;
  padding: 0 14px;
}

button:hover {
  filter: brightness(1.08);
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.55;
}

button.secondary {
  background: var(--panel-soft);
  border-color: var(--line);
}

input,
textarea,
select {
  width: 100%;
  min-height: 38px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #121718;
  color: var(--text);
  padding: 0 10px;
}

textarea {
  min-height: 82px;
  padding: 9px 10px;
  resize: vertical;
}

textarea:disabled {
  opacity: 0.65;
}

label {
  display: block;
  margin: 12px 0 6px;
  color: var(--muted);
  font-size: 0.85rem;
}

.shell {
  width: min(1440px, 100%);
  margin: 0 auto;
  padding: 20px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
}

h1,
h2,
h3,
p {
  margin: 0;
}

h1 {
  font-size: 1.6rem;
  font-weight: 720;
}

h2 {
  font-size: 1rem;
}

h3 {
  font-size: 0.92rem;
}

.topbar p,
.hint {
  color: var(--muted);
  margin-top: 4px;
}

.status-pill {
  min-width: 110px;
  text-align: center;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--muted);
  padding: 8px 12px;
}

.status-pill.online {
  color: #071512;
  background: var(--accent-strong);
  border-color: var(--accent-strong);
}

.layout {
  display: grid;
  grid-template-columns: 340px minmax(0, 1fr);
  gap: 16px;
}

.main-stack {
  display: grid;
  gap: 16px;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 16px;
}

.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 12px;
}

.side {
  align-self: start;
}

.scan-row,
.send-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 8px;
}

.full {
  width: 100%;
  margin-top: 8px;
}

.divider {
  height: 1px;
  background: var(--line);
  margin: 18px 0;
}

.dashboard {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 10px;
}

.metric {
  min-height: 76px;
  background: #151a1c;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 12px;
}

.metric.wide {
  grid-column: span 2;
}

.metric span {
  display: block;
  color: var(--muted);
  font-size: 0.8rem;
  margin-bottom: 8px;
}

.metric strong {
  display: block;
  overflow-wrap: anywhere;
  font-size: 1rem;
}

.command-grid {
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  gap: 14px;
}

.fields {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0 10px;
}

.send-row {
  margin-top: 14px;
}

.precision-actions,
.log-row {
  display: flex;
  gap: 8px;
}

.log-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto auto;
  margin-bottom: 14px;
}

.inline-check {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  width: fit-content;
  margin-bottom: 12px;
  color: var(--muted);
  font-weight: 600;
}

.inline-check input {
  width: auto;
  margin: 0;
}

.precision-layout {
  display: grid;
  grid-template-columns: minmax(280px, 420px) minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  margin-top: 14px;
}

.plot-wrap {
  width: 100%;
  aspect-ratio: 1 / 1;
  border: 1px solid #222b2e;
  border-radius: 6px;
  background: #0a0d0e;
  overflow: hidden;
}

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

.trend-controls {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 180px;
  gap: 12px;
  margin-top: 14px;
}

.trend-wrap {
  width: 100%;
  height: 300px;
  border: 1px solid #222b2e;
  border-radius: 6px;
  background: #0a0d0e;
  overflow: hidden;
  margin-top: 12px;
}

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

.log-status {
  min-height: 38px;
  display: flex;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #151a1c;
  color: var(--muted);
  padding: 0 10px;
  overflow-wrap: anywhere;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin-top: 10px;
}

.stat {
  min-height: 68px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #151a1c;
  padding: 10px;
}

.stat span {
  display: block;
  color: var(--muted);
  font-size: 0.78rem;
  margin-bottom: 7px;
}

.stat strong {
  display: block;
  overflow-wrap: anywhere;
  font-size: 0.98rem;
}

.segmented {
  display: flex;
  background: #121718;
  border: 1px solid var(--line);
  border-radius: 6px;
  overflow: hidden;
}

.segmented button {
  min-height: 32px;
  border-radius: 0;
  background: transparent;
  color: var(--muted);
}

.segmented button.active {
  background: var(--accent);
  color: #071512;
}

.terminal-panel {
  min-height: 420px;
}

#terminal {
  height: 360px;
  overflow: auto;
  margin: 0;
  padding: 12px;
  border-radius: 6px;
  background: #0a0d0e;
  border: 1px solid #222b2e;
  color: #c7f7e7;
  font-family: "Cascadia Code", Consolas, monospace;
  font-size: 0.86rem;
  line-height: 1.45;
  white-space: pre-wrap;
}

.tx {
  color: #8dc8ff;
}

.rx {
  color: #d6f7e8;
}

.bad {
  color: var(--danger);
}

.ok {
  color: var(--accent-strong);
}

@media (max-width: 1000px) {
  .layout,
  .command-grid,
  .precision-layout {
    grid-template-columns: 1fr;
  }

  .dashboard {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .metric.wide {
    grid-column: span 2;
  }
}

@media (max-width: 620px) {
  .shell {
    padding: 12px;
  }

  .topbar {
    align-items: flex-start;
    flex-direction: column;
  }

  .dashboard,
  .fields,
  .scan-row,
  .send-row,
  .log-row,
  .trend-controls,
  .stats-grid {
    grid-template-columns: 1fr;
  }

  .precision-actions {
    width: 100%;
  }

  .precision-actions button {
    flex: 1;
  }

  .metric.wide {
    grid-column: span 1;
  }
}