/* UART Telemetry Dashboard
   Aesthetic: lab instrument panel.
   Type: IBM Plex Sans + IBM Plex Mono.
   Palette: warm-neutral near-black, paper, single oklch accent (live via --accent).
*/

@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@400;500;600&family=IBM+Plex+Sans:wght@400;500;600;700&display=swap');

:root {
  --accent: oklch(0.62 0.14 50);
  --bg:        oklch(0.985 0.003 80);
  --bg-2:      oklch(0.97 0.003 80);
  --bg-3:      oklch(0.94 0.004 80);
  --line:      oklch(0.86 0.005 80);
  --line-soft: oklch(0.91 0.004 80);
  --fg:        oklch(0.20 0.008 60);
  --fg-2:      oklch(0.36 0.008 60);
  --fg-3:      oklch(0.55 0.006 60);
  --warn:      oklch(0.55 0.18 30);
  --ok:        oklch(0.55 0.15 150);
  --pre:       oklch(0.72 0.008 60);
  --hdr:       oklch(0.45 0.008 60);
  --ctrl:      oklch(0.62 0.14 50);
  --data:      oklch(0.40 0.006 60);
  --sum:       oklch(0.50 0.12 215);
  --end:       oklch(0.50 0.13 150);

  --pad: 18px;
  --pad-sm: 10px;
  --radius: 2px;
  --mono: 'IBM Plex Mono', ui-monospace, Menlo, monospace;
  --sans: 'IBM Plex Sans', ui-sans-serif, system-ui, sans-serif;
}
:root[data-density="compact"] { --pad: 12px; --pad-sm: 6px; }

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; background: var(--bg); color: var(--fg); }
body {
  font-family: var(--sans);
  font-size: 13px;
  line-height: 1.45;
  font-feature-settings: 'cv11', 'ss01';
  min-height: 100vh;
}
::selection { background: var(--accent); color: #fff; }

#root { min-height: 100vh; display: flex; }
.shell { flex: 1; display: flex; flex-direction: column; }

/* ── header ─────────────────────────────────────────────────────────── */
.top {
  display: grid;
  grid-template-columns: max-content 1fr max-content;
  align-items: center;
  gap: 32px;
  padding: 14px 22px;
  border-bottom: 1px solid var(--line);
  background: var(--bg);
}
.brand { display: flex; align-items: center; gap: 12px; }
.brand-mark {
  width: 22px; height: 22px;
  background: var(--accent);
  position: relative;
}
.brand-mark::before, .brand-mark::after {
  content: ''; position: absolute;
}
.brand-mark::before { left: 4px; right: 4px; top: 9px; height: 1px; background: #fff; }
.brand-mark::after  { left: 4px; right: 4px; top: 12px; height: 1px; background: #fff; }
.brand-stack { line-height: 1.15; }
.brand-name { font-weight: 600; letter-spacing: 0.02em; }
.brand-sub { font-size: 11px; color: var(--fg-3); font-family: var(--mono); text-transform: uppercase; letter-spacing: 0.08em; }

.status-cluster { display: flex; align-items: center; gap: 22px; position: relative; flex-wrap: wrap; }
.status-pill {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 5px 12px; font-family: var(--mono); font-size: 11px;
  background: var(--bg-2); border: 1px solid var(--line); text-transform: uppercase; letter-spacing: 0.08em;
}
.status-pill .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--fg-3); }
.status-live .dot { background: var(--ok); animation: pulse 1.2s infinite; }
.status-idle .dot { background: var(--fg-3); }
.status-done .dot { background: var(--accent); }
.status-bad .dot  { background: var(--warn); }
@keyframes pulse {
  0%, 100% { opacity: 1; box-shadow: 0 0 0 0 var(--ok); }
  50%      { opacity: 0.6; box-shadow: 0 0 0 4px transparent; }
}

.source-switch {
  display: inline-flex; border: 1px solid var(--line); background: var(--bg-2);
  font-family: var(--mono); font-size: 11px; text-transform: uppercase; letter-spacing: 0.08em;
}
.src-seg {
  appearance: none; background: transparent; border: 0; color: var(--fg-3);
  padding: 5px 12px; cursor: pointer; font: inherit; letter-spacing: inherit;
  border-right: 1px solid var(--line);
}
.src-seg:last-child { border-right: 0; }
.src-seg:hover { color: var(--fg); }
.src-seg.on { background: var(--accent); color: #fff; }
.source-file {
  appearance: none; -webkit-appearance: none;
  font-family: var(--mono); font-size: 11px;
  padding: 5px 28px 5px 10px;
  background: var(--bg-2) no-repeat right 8px center / 8px auto;
  background-image: linear-gradient(45deg, transparent 50%, var(--fg-3) 50%),
                    linear-gradient(135deg, var(--fg-3) 50%, transparent 50%);
  background-position: right 14px top 11px, right 9px top 11px;
  background-size: 5px 5px, 5px 5px;
  background-repeat: no-repeat;
  border: 1px solid var(--line); color: var(--fg);
  text-transform: uppercase; letter-spacing: 0.06em;
  cursor: pointer; max-width: 220px;
}
.source-file:hover { border-color: var(--fg-3); }
.source-file:focus { outline: 1px solid var(--accent); outline-offset: -1px; }

.live-controls { display: inline-flex; gap: 6px; align-items: center; }
.live-btn {
  appearance: none; background: var(--bg-2); border: 1px solid var(--line);
  color: var(--fg); font-family: var(--mono); font-size: 11px;
  padding: 5px 12px; cursor: pointer;
  text-transform: uppercase; letter-spacing: 0.08em;
}
.live-btn:hover { border-color: var(--fg-3); }
.live-btn:disabled { opacity: 0.45; cursor: not-allowed; }
.live-btn-connect { background: var(--accent); color: #fff; border-color: var(--accent); }
.live-btn-connect:hover:not(:disabled) { filter: brightness(0.95); }
.live-btn-disconnect { background: var(--warn); color: #fff; border-color: var(--warn); }
.live-btn-cog, .live-btn-clear { padding: 5px 10px; }

.signal-lines { display: inline-flex; gap: 4px; margin-left: 6px; padding-left: 10px; border-left: 1px solid var(--line); }
.sig-btn {
  appearance: none; background: var(--bg-2); border: 1px solid var(--line);
  color: var(--fg-3); font-family: var(--mono); font-size: 11px;
  padding: 5px 10px; cursor: pointer;
  text-transform: uppercase; letter-spacing: 0.06em; min-width: 36px;
}
.sig-btn:disabled { opacity: 0.35; cursor: not-allowed; }
.sig-btn:hover:not(:disabled) { color: var(--fg); border-color: var(--fg-3); }
.sig-btn.on { background: var(--ok); color: #fff; border-color: var(--ok); }
.sig-btn.sig-pulse.on { background: var(--warn); border-color: var(--warn); animation: pulse 1.2s infinite; }

.serial-popover {
  position: absolute; top: calc(100% + 8px); right: 22px;
  background: var(--bg); border: 1px solid var(--line);
  font-family: var(--mono); font-size: 11px; padding: 8px;
  display: flex; flex-direction: column; gap: 6px; min-width: 200px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.08);
  z-index: 100;
}
.serial-popover-h {
  display: flex; justify-content: space-between; align-items: center;
  font-weight: 600; text-transform: uppercase; letter-spacing: 0.08em;
  padding-bottom: 4px; border-bottom: 1px solid var(--line-soft);
}
.serial-popover-x {
  appearance: none; background: transparent; border: 0;
  font-family: var(--mono); font-size: 12px; color: var(--fg-3); cursor: pointer;
  padding: 0 4px;
}
.serial-popover-x:hover { color: var(--fg); }
.serial-popover-note {
  font-size: 10px; color: var(--fg-3); padding: 4px 0;
  text-transform: uppercase; letter-spacing: 0.08em;
}
.serial-row {
  display: grid; grid-template-columns: 50px 1fr; align-items: center; gap: 8px;
}
.serial-row > span {
  text-transform: uppercase; letter-spacing: 0.08em; color: var(--fg-3);
}
.serial-row select {
  appearance: none; -webkit-appearance: none;
  font-family: var(--mono); font-size: 11px;
  padding: 3px 8px; background: var(--bg-2); border: 1px solid var(--line);
  color: var(--fg); cursor: pointer;
}
.serial-row select:disabled { opacity: 0.55; cursor: not-allowed; }

.status-meta { display: flex; gap: 22px; font-family: var(--mono); font-size: 12px; }
.status-meta > div { display: flex; flex-direction: column; gap: 2px; }
.status-meta label { font-size: 10px; color: var(--fg-3); text-transform: uppercase; letter-spacing: 0.08em; }
.status-meta span { color: var(--fg); }
.status-meta .warn { color: var(--warn); }

.transport { display: flex; gap: 6px; }
.t-btn {
  font-family: var(--mono); font-size: 12px;
  background: var(--bg-2); border: 1px solid var(--line);
  color: var(--fg-2); padding: 7px 12px; cursor: pointer;
  border-radius: var(--radius);
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}
.t-btn:hover { color: var(--fg); border-color: var(--fg-3); }
.t-play { padding: 7px 18px; }
.t-play.on { background: var(--accent); color: #fff; border-color: var(--accent); }

/* ── scrub bar ──────────────────────────────────────────────────────── */
.scrub {
  display: flex; align-items: center; gap: 16px;
  padding: 8px 22px;
  background: var(--bg-2);
  border-bottom: 1px solid var(--line);
}
.scrub input[type="range"] {
  flex: 1; appearance: none; -webkit-appearance: none;
  height: 4px; background: var(--bg-3); border-radius: 2px;
}
.scrub input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none; width: 12px; height: 12px;
  background: var(--accent); cursor: pointer; border-radius: 0;
}
.scrub input[type="range"]::-moz-range-thumb {
  width: 12px; height: 12px; background: var(--accent); cursor: pointer; border: 0; border-radius: 0;
}
.scrub-meta { display: flex; gap: 8px; font-family: var(--mono); font-size: 11px; color: var(--fg-3); }

.banner { padding: 10px 22px; font-family: var(--mono); font-size: 12px; }
.banner.err { background: oklch(0.32 0.10 30); color: oklch(0.95 0.02 30); }

/* ── main grid ──────────────────────────────────────────────────────── */
.grid {
  flex: 1;
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  grid-template-rows: auto auto;
  gap: 14px;
  padding: 14px 22px 22px;
  align-content: start;
}
.card-bms     { grid-column: 1; grid-row: 1; }
.card-bus     { grid-column: 2; grid-row: 1; }
.card-log     { grid-column: 1; grid-row: 2; }
.card-inspect { grid-column: 2; grid-row: 2; }
.card-bytes   { grid-column: 1 / -1; grid-row: 3; }
.card-send    { grid-column: 1 / -1; grid-row: 4; }
.card-send.card-send-dim { opacity: 0.6; }
.send-input {
  width: 100%; min-height: 64px;
  font-family: var(--mono); font-size: 12px; line-height: 1.5;
  background: var(--bg-3); border: 1px solid var(--line);
  padding: 8px 10px; color: var(--fg);
  resize: vertical; outline: 0;
}
.send-input:focus { border-color: var(--accent); }
.send-input:disabled { opacity: 0.55; cursor: not-allowed; }
.send-actions {
  display: flex; align-items: center; gap: 12px;
  padding: 10px 0 0; margin-top: 10px;
  border-top: 1px solid var(--line-soft);
}
.send-btn {
  appearance: none; background: var(--accent); color: #fff; border: 0;
  padding: 6px 14px; font-family: var(--mono); font-size: 12px;
  text-transform: uppercase; letter-spacing: 0.08em; cursor: pointer;
}
.send-btn:disabled { opacity: 0.4; cursor: not-allowed; }
.send-btn:hover:not(:disabled) { filter: brightness(0.95); }
.send-btn-2 {
  appearance: none; background: var(--bg-2); border: 1px solid var(--line);
  padding: 6px 12px; font-family: var(--mono); font-size: 11px;
  color: var(--fg-2); text-transform: uppercase; letter-spacing: 0.08em; cursor: pointer;
}
.send-btn-2:hover:not(:disabled) { color: var(--fg); border-color: var(--fg-3); }
.send-btn-2:disabled { opacity: 0.4; cursor: not-allowed; }
.send-hint {
  font-family: var(--mono); font-size: 11px; color: var(--fg-3);
  text-transform: uppercase; letter-spacing: 0.08em; margin-left: auto;
}
.send-hint.err { color: var(--warn); text-transform: none; letter-spacing: 0; }
.send-shift {
  display: inline-flex; align-items: center; gap: 6px;
  font-family: var(--mono); font-size: 11px; color: var(--fg-2);
  text-transform: uppercase; letter-spacing: 0.08em; cursor: pointer;
  padding: 4px 8px; border: 1px solid transparent;
}
.send-shift:hover { color: var(--fg); border-color: var(--line); }
.send-shift input { appearance: none; -webkit-appearance: none;
  width: 12px; height: 12px; border: 1px solid var(--fg-3);
  background: var(--bg-2); cursor: pointer; position: relative;
}
.send-shift input:checked { background: var(--accent); border-color: var(--accent); }
.send-shift input:checked::after { content: '✓'; position: absolute; top: -3px; left: 1px; color: #fff; font-size: 10px; line-height: 1; }
.send-history { margin-top: 12px; display: flex; flex-direction: column; gap: 3px; }
.send-history-h {
  font-family: var(--mono); font-size: 10px; color: var(--fg-3);
  text-transform: uppercase; letter-spacing: 0.12em; margin-bottom: 2px;
}
.send-row {
  display: grid; grid-template-columns: 100px 50px 1fr; gap: 10px;
  background: transparent; border: 1px solid transparent; padding: 4px 8px;
  font-family: var(--mono); font-size: 11px; cursor: pointer;
  text-align: left; color: var(--fg-2); width: 100%;
}
.send-row:hover { border-color: var(--line); background: var(--bg-3); color: var(--fg); }
.send-row-time { color: var(--fg-3); }
.send-row-n { color: var(--accent); font-weight: 600; }
.send-row-bytes { color: var(--fg); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

.card {
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  display: flex; flex-direction: column;
  min-width: 0;
}
.card-h {
  display: flex; align-items: baseline; justify-content: space-between;
  gap: 16px;
  padding: 12px var(--pad);
  border-bottom: 1px solid var(--line-soft);
}
.card-title { font-weight: 600; letter-spacing: 0.01em; }
.card-sub { font-family: var(--mono); font-size: 11px; color: var(--fg-3); text-transform: uppercase; letter-spacing: 0.08em; }

/* ── BMS readouts ───────────────────────────────────────────────────── */
.bms-readouts {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 1px; background: var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
}
.rdo { padding: var(--pad); background: var(--bg-2); display: flex; flex-direction: column; gap: 8px; }
.rdo > label {
  font-family: var(--mono); font-size: 10px; color: var(--fg-3);
  text-transform: uppercase; letter-spacing: 0.1em;
}
.rdo-val {
  font-family: var(--mono); font-weight: 500;
  font-size: 36px; line-height: 1; color: var(--fg);
  font-feature-settings: 'tnum';
}
.rdo-val small { font-size: 14px; color: var(--fg-3); margin-left: 6px; font-weight: 400; }
.rdo-mono { font-family: var(--mono); font-size: 18px; color: var(--accent); letter-spacing: 0.04em; }
.spark { width: 100%; height: 56px; color: var(--fg-3); }
.soc-bar { height: 8px; background: var(--bg-3); position: relative; overflow: hidden; }
.soc-fill { position: absolute; inset: 0 auto 0 0; background: var(--accent); transition: width 0.3s ease; }
.rdo-temps { display: flex; flex-wrap: wrap; gap: 4px 8px; font-family: var(--mono); font-size: 11px; }
.temp-chip { display: inline-flex; align-items: baseline; gap: 4px; }
.temp-chip label { color: var(--fg-3); font-size: 10px; }
.temp-chip span { color: var(--fg-2); }

/* ── Cells grid ─────────────────────────────────────────────────────── */
.cells-wrap { padding: var(--pad); }
.cells-h {
  display: flex; justify-content: space-between; align-items: baseline;
  font-family: var(--mono); font-size: 11px; color: var(--fg-3);
  text-transform: uppercase; letter-spacing: 0.08em;
  margin-bottom: 12px;
}
.cells-stats em { color: var(--fg-3); margin-right: 4px; font-style: normal; }
.cells-stats { color: var(--fg); font-feature-settings: 'tnum'; }
.cells-grid {
  display: grid; grid-template-columns: repeat(20, 1fr);
  gap: 6px;
}
.cell {
  display: flex; flex-direction: column; align-items: center; gap: 4px;
  padding: 6px 2px;
  font-family: var(--mono);
  background: transparent;
  border: 0;
}
.cell-empty { opacity: 0.35; }
.cell-num { font-size: 9px; color: var(--fg-3); }
.cell-svg { width: 22px; height: 56px; display: block; }
.cell-cap   { fill: var(--fg-3); }
.cell-body  { fill: var(--bg-3); stroke: var(--fg-3); stroke-width: 1; }
.cell-well  { fill: var(--bg); }
.cell-fluid { fill: var(--accent); opacity: 0.85; transition: y 0.3s ease, height 0.3s ease; }
.cell-score { stroke: var(--fg-3); stroke-width: 0.5; opacity: 0.5; }
.cell-val { font-size: 10px; color: var(--fg-2); font-feature-settings: 'tnum'; }
.cell-hi .cell-body { stroke: var(--ok); }
.cell-hi .cell-fluid { fill: var(--ok); }
.cell-lo .cell-body { stroke: var(--warn); }
.cell-lo .cell-fluid { fill: var(--warn); }

/* ── Bus map ────────────────────────────────────────────────────────── */
.bus-list { padding: 6px 0; }
.bus-row {
  display: grid; grid-template-columns: 22px 70px 1fr max-content;
  align-items: center; gap: 12px;
  padding: 9px var(--pad);
  border: 0; border-bottom: 1px solid var(--line-soft);
  font-family: var(--mono);
  background: transparent;
  width: 100%;
  text-align: left;
  cursor: pointer;
  color: inherit;
  opacity: 0.5;
  transition: opacity 0.2s, background 0.15s;
}
.bus-row.seen { opacity: 1; cursor: pointer; }
.bus-row[disabled] { cursor: not-allowed; }
.bus-row:last-child { border-bottom: 0; }
.bus-row.seen:hover { background: var(--bg-3); }
.bus-row.on { background: var(--bg-3); }
.bus-check {
  width: 16px; height: 16px;
  border: 1px solid var(--line);
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 11px; color: var(--accent);
  background: var(--bg);
}
.bus-check.checked { background: var(--accent); color: #fff; border-color: var(--accent); }
.bus-addr { color: var(--accent); font-size: 13px; }
.bus-row.on .bus-addr { color: var(--accent); font-weight: 600; }
.bus-name { display: flex; flex-direction: column; gap: 1px; font-family: var(--sans); }
.bus-name-main { font-size: 12px; color: var(--fg); }
.bus-name-role { font-size: 10px; color: var(--fg-3); text-transform: uppercase; letter-spacing: 0.08em; font-family: var(--mono); }
.bus-count { font-size: 14px; color: var(--fg); font-feature-settings: 'tnum'; min-width: 40px; text-align: right; }

.bus-actions {
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px var(--pad);
  border-top: 1px solid var(--line-soft);
}
.bus-action {
  background: transparent; border: 1px solid var(--line);
  color: var(--fg-2); padding: 5px 10px;
  font-family: var(--mono); font-size: 11px;
  text-transform: uppercase; letter-spacing: 0.08em;
  cursor: pointer; border-radius: var(--radius);
}
.bus-action:hover:not([disabled]) { color: var(--accent); border-color: var(--accent); }
.bus-action[disabled] { opacity: 0.4; cursor: default; }
.bus-hint { font-family: var(--mono); font-size: 10px; color: var(--fg-3); text-transform: uppercase; letter-spacing: 0.08em; }

.legend {
  display: grid; grid-template-columns: repeat(2, 1fr);
  gap: 6px 14px;
  padding: var(--pad);
  border-top: 1px solid var(--line-soft);
  font-family: var(--mono); font-size: 11px; color: var(--fg-3);
}
.legend > div { display: flex; align-items: center; gap: 8px; }
.lg { width: 12px; height: 12px; display: inline-block; }
.lg-pre { background: var(--pre); }
.lg-mark { background: var(--hdr); }
.lg-ctrl { background: var(--ctrl); }
.lg-data { background: var(--data); opacity: 0.6; }
.lg-sum { background: var(--sum); }
.lg-end { background: var(--end); }

/* ── Bytes stream ───────────────────────────────────────────────────── */
.bytes-stream {
  padding: 10px var(--pad);
  font-family: var(--mono); font-size: 10.5px;
  line-height: 1.6;
  max-height: 120px;
  overflow-y: auto;
  word-break: break-all;
  background: var(--bg);
}
.byte {
  display: inline-block;
  padding: 0 3px; margin: 1px 1px;
  background: var(--bg-3);
  color: var(--fg-2);
  border-radius: 1px;
}
.byte-pre { background: transparent; color: var(--pre); }
.byte-hdr { background: transparent; color: var(--hdr); }
.byte-mark { background: var(--hdr); color: var(--bg); font-weight: 600; }
.byte-ctrl { background: var(--ctrl); color: #fff; font-weight: 600; }
.byte-data { background: transparent; color: var(--data); }
.byte-sum { background: var(--sum); color: #fff; }
.byte-end { background: var(--end); color: #fff; }
.byte-orphan { color: var(--warn); background: transparent; }
.byte-cursor { outline: 1px solid var(--accent); }

/* ── Frame log ──────────────────────────────────────────────────────── */
.log-head, .frow {
  display: grid;
  grid-template-columns: 90px 18px 60px 44px 130px 40px 36px 1fr;
  align-items: center; gap: 10px;
  padding: 6px var(--pad);
  font-family: var(--mono); font-size: 11px;
}
.log-head {
  color: var(--fg-3); text-transform: uppercase; letter-spacing: 0.08em;
  border-bottom: 1px solid var(--line-soft);
}
.log-body { max-height: 360px; overflow-y: auto; }
.frow {
  background: transparent; border: 0; border-bottom: 1px solid var(--line-soft);
  width: 100%; text-align: left; cursor: pointer; color: var(--fg-2);
  font-size: 11.5px;
}
.frow:hover { background: var(--bg-3); }
.frow-picked { background: var(--bg-3); }
.frow-picked .fr-addr { color: var(--accent); }
.fr-time { color: var(--fg-3); }
.fr-dir { font-size: 12px; }
.fr-rx { color: var(--fg-3); }
.fr-tx { color: var(--accent); }
.fr-addr { color: var(--fg); font-weight: 500; }
.fr-code { color: var(--fg-3); }
.fr-code-tx { color: var(--accent); }
.fr-kind { color: var(--fg-2); }
.k-bms-cells, .k-bms-summary, .k-bms-info { color: var(--accent); }
.k-bms-request { color: var(--fg); }
.k-station-tx, .k-station-ack { color: oklch(0.78 0.10 215); }
.fr-len { color: var(--fg-3); text-align: right; }
.fr-sum { font-size: 10px; }
.sum-ok { color: var(--ok); }
.sum-bad { color: var(--warn); }
.fr-summary { color: var(--fg-3); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.log-empty { padding: 40px; text-align: center; color: var(--fg-3); font-family: var(--mono); }

/* ── Pair (request + reply exchange) ─────────────────────────────────── */
.pair {
  display: grid;
  grid-template-columns: 92px 1fr;
  border-bottom: 1px solid var(--line-soft);
  position: relative;
}
.pair-spine {
  display: flex; flex-direction: column; gap: 2px; justify-content: center;
  padding: 8px 10px;
  font-family: var(--mono); font-size: 10.5px;
  background: linear-gradient(to right, var(--bg-3) 0%, var(--bg-3) 100%);
  background-size: 2px 100%; background-repeat: no-repeat;
  background-position: right;
  border-right: 1px solid var(--line-soft);
}
.pair-addr { color: var(--fg); font-weight: 500; font-size: 11.5px; }
.pair-dev  { color: var(--fg-3); text-transform: uppercase; letter-spacing: 0.06em; font-size: 9.5px; }
.pair-lat  { color: var(--accent); font-size: 10px; margin-top: 2px; }
.pair-frames { display: flex; flex-direction: column; }
.frow-pair {
  display: grid;
  grid-template-columns: 90px 18px 44px 130px 40px 36px 1fr;
  border-bottom: 0;
  padding-left: 6px;
}
.frow-pair + .frow-pair {
  border-top: 1px dashed var(--line-soft);
}
.pair-bms-request, .pair-bms-cells, .pair-bms-info, .pair-bms-summary {
  background: linear-gradient(to right, color-mix(in oklch, var(--accent) 6%, transparent) 0, transparent 4px);
}

/* ── Inspector — annotated bytes & flag tables ──────────────────────── */
.inspect-section { margin-top: 18px; }
.inspect-h { font-family: var(--mono); font-size: 10px; color: var(--fg-3); text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 8px; }
.inspect-h em { font-style: normal; color: var(--fg-3); text-transform: none; letter-spacing: 0; margin-left: 4px; }

.field-list { display: grid; grid-template-columns: 1fr 1fr; gap: 8px 16px; font-family: var(--mono); font-size: 12px; }
.field { display: flex; flex-direction: column; gap: 2px; padding: 6px 8px; background: var(--bg-3); border: 1px solid var(--line-soft); }
.field label { font-size: 9.5px; color: var(--fg-3); text-transform: uppercase; letter-spacing: 0.08em; }
.field span { color: var(--fg); font-size: 12.5px; }
.field em { color: var(--fg-3); font-style: normal; font-size: 10px; }

.flag-stack { display: flex; flex-direction: column; gap: 8px; }
.flag-block { background: var(--bg-3); border: 1px solid var(--line-soft); padding: 8px 10px; font-family: var(--mono); }
.flag-h { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 6px; }
.flag-h label { font-size: 10px; color: var(--fg-3); text-transform: uppercase; letter-spacing: 0.08em; }
.flag-byte { font-size: 10.5px; color: var(--fg-2); }
.flag-bits { display: grid; grid-template-columns: repeat(2, 1fr); gap: 3px 16px; }
.flag-bit { display: grid; grid-template-columns: 16px 1fr; font-size: 10.5px; align-items: center; }
.flag-bit-i { color: var(--fg-3); }
.flag-bit-l { color: var(--fg-3); }
.flag-bit.on .flag-bit-i { color: var(--accent); }
.flag-bit.on .flag-bit-l { color: var(--fg); }
.flag-empty { font-size: 10.5px; color: var(--fg-3); font-family: var(--mono); }

.inspect-cells { display: grid; grid-template-columns: repeat(10, 1fr); gap: 4px; font-family: var(--mono); font-size: 10.5px; }
.ic { display: flex; flex-direction: column; padding: 4px 6px; background: var(--bg-3); border: 1px solid var(--line-soft); }
.ic-i { color: var(--fg-3); font-size: 9px; }
.ic-v { color: var(--fg-2); }
.ic-hi { border-color: var(--accent); }
.ic-hi .ic-v { color: var(--accent); }
.ic-lo { border-color: var(--warn); }
.ic-lo .ic-v { color: var(--warn); }

.ba-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 3px; font-family: var(--mono); }
.ba { display: grid; grid-template-columns: 22px 28px 1fr; align-items: baseline; padding: 3px 6px; background: var(--bg-3); border: 1px solid var(--line-soft); font-size: 10.5px; }
.ba-i { color: var(--fg-3); font-size: 9px; }
.ba-v { color: var(--fg-2); }
.ba-l { color: var(--fg-3); font-size: 10px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.ba-addr   { background: color-mix(in oklch, var(--accent) 8%, var(--bg-3)); border-color: color-mix(in oklch, var(--accent) 30%, var(--line-soft)); }
.ba-addr   .ba-v { color: var(--accent); }
.ba-text   { background: color-mix(in oklch, oklch(0.78 0.10 215) 8%, var(--bg-3)); }
.ba-text   .ba-v { color: oklch(0.78 0.10 215); }
.ba-val    { background: color-mix(in oklch, var(--accent) 12%, var(--bg-3)); border-color: color-mix(in oklch, var(--accent) 40%, var(--line-soft)); }
.ba-val    .ba-v { color: var(--accent); font-weight: 500; }
.ba-flag   { background: color-mix(in oklch, var(--warn) 10%, var(--bg-3)); border-color: color-mix(in oklch, var(--warn) 30%, var(--line-soft)); }
.ba-flag   .ba-v { color: var(--warn); }
.ba-temp   { background: color-mix(in oklch, oklch(0.74 0.10 50) 10%, var(--bg-3)); }
.ba-temp   .ba-v { color: oklch(0.74 0.10 50); }
.ba-cell   { background: var(--bg-3); }
.ba-cell   .ba-v { color: var(--fg-2); }
.ba-meta   { color: var(--fg-3); }
.ba-station, .ba-aux { background: var(--bg-3); }
.ba-data   { color: var(--fg-3); }

.raw-wire {
  font-family: var(--mono); font-size: 11.5px; color: var(--fg-2);
  background: var(--bg); padding: 8px 10px; border: 1px solid var(--line-soft);
  display: block; word-break: break-all; line-height: 1.7;
}

/* ── Inspector ──────────────────────────────────────────────────────── */
.inspect, .inspect-empty { padding: var(--pad); }
.inspect-empty { color: var(--fg-3); font-family: var(--mono); font-size: 12px; text-align: center; padding: 60px var(--pad); }
.inspect-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 10px 16px;
  font-family: var(--mono); font-size: 12px;
  margin-bottom: 16px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line-soft);
}
.inspect-grid > div { display: flex; flex-direction: column; gap: 2px; }
.inspect-grid label { font-size: 10px; color: var(--fg-3); text-transform: uppercase; letter-spacing: 0.08em; }
.inspect-grid span { color: var(--fg); }
.inspect-grid em { color: var(--fg-3); font-style: normal; margin-left: 4px; }
.inspect-grid .ok { color: var(--ok); }
.inspect-grid .bad { color: var(--warn); }

.inspect-bytes { display: flex; flex-direction: column; gap: 6px; }
.inspect-bytes > label {
  font-family: var(--mono); font-size: 10px; color: var(--fg-3);
  text-transform: uppercase; letter-spacing: 0.08em;
  margin-top: 8px;
}
.inspect-bytes > label em { color: var(--fg-3); font-style: normal; text-transform: none; letter-spacing: 0; }
.inspect-bytes code {
  font-family: var(--mono); font-size: 11.5px; color: var(--fg-2);
  background: var(--bg); padding: 8px 10px; border: 1px solid var(--line-soft);
  display: block; word-break: break-all; line-height: 1.7;
}
.inspect-detail { display: grid; grid-template-columns: 1fr 1fr; gap: 8px 16px; margin-top: 12px; font-family: var(--mono); font-size: 12px; }
.inspect-detail > div { display: flex; flex-direction: column; }
.inspect-detail label { font-size: 10px; color: var(--fg-3); text-transform: uppercase; letter-spacing: 0.08em; }
.inspect-detail span { color: var(--fg); }
.cells-line { display: flex; flex-wrap: wrap; gap: 4px 8px; font-family: var(--mono); font-size: 11px; }
.cells-line em { font-style: normal; color: var(--fg-2); }

@media (max-width: 1100px) {
  .grid { grid-template-columns: 1fr; }
  .card-bms, .card-bus, .card-bytes, .card-log, .card-inspect, .card-send { grid-column: 1; grid-row: auto; }
  .bms-readouts { grid-template-columns: repeat(2, 1fr); }
  .cells-grid { grid-template-columns: repeat(10, 1fr); }
}