/* =========================================================================
   Shared design tokens + base components for the webBLEDemos pages.

   Extracted from verisense-device-console/console.css (tokens, cards,
   buttons, tabs, collapsible groups, dirty fields, log lines, toasts) so
   every demo in this repo can look like one product without a build step.

   Import from any demo folder:
       <link rel="stylesheet" href="../common/theme.css" />

   Token layering — three blocks, in this order:
     :root                                    light values (the baseline)
     :root[data-theme="dark"]                 explicit dark choice
     @media (prefers-color-scheme: dark)
       :root:not([data-theme="light"])        OS dark, unless light was chosen

   Component rules below reference tokens ONLY. Adjust colours here, not in
   the component section.
   ========================================================================= */

:root {
  color-scheme: light;

  /* surfaces */
  --bg: #f4f6f8;
  --card: #ffffff;
  --surface-2: #fafbfc;
  --surface-3: #f1f5f6;
  --surface-inset: #eef1f3;

  /* text */
  --ink: #17232a;
  --ink-strong: #101c22;
  --muted: #64747e;
  --faint: #9aa7ae;

  /* borders */
  --line: #e2e8eb;
  --line-soft: #eaeff2;
  --line-strong: #d3dce0;

  /* Brand accent — Pantone Orange 021C (product colour). Pure #fe5000 is
     max-chroma: fine for thin/small accents (tab underline, badge dots,
     meters, focus) but a solid button block of it vibrates on white and
     white text on it is only 3.3:1. So button surfaces use --accent-fill,
     an "ember" deepened one step for white ink at 4.8:1, and --accent-text
     is likewise deepened for AA on light surfaces.
     NEVER use #fe5000 as a button fill. */
  --accent: #fe5000;
  --accent-fill: #cf3f00;
  --accent-hover: #b83800;
  --accent-ink: #ffffff;
  --accent-text: #c13c00;
  --accent-soft: #ffede3;
  --accent-soft-border: #ffcdb3;
  --accent-2: #17506e;

  /* controls */
  --control-bg: #ffffff;
  --control-hover: #f2f6f7;

  /* states */
  --warn: #9a5d06;
  --warn-bg: #fdf6ea;
  --warn-border: #eed9b4;
  --danger: #c0392b;
  --danger-bg: #fdefed;
  --danger-border: #f0c4bf;
  --ok: #1e7a1e;
  --ok-bg: #eef7ee;
  --ok-border: #c3e0c3;
  --info-bg: #eef4f9;
  --info-border: #c8dbea;

  /* log / terminal surfaces (dark in BOTH themes, as in the console: a
     terminal that flips to white is unreadable next to a dark plot and
     breaks the "this is machine output" reading) */
  --log-bg: #10161d;
  --log-ink: #cfdae4;
  --log-line: #273444;
  --log-ok: #3ddc84;
  --log-bad: #ff6b6b;
  /* Bright amber-orange, tuned to pop on --log-bg like --log-ok/--log-bad
     (the softer #e5b567 was hard to read on the dark log surface). */
  --log-warn: #ffb454;
  --log-tx: #79b8ff;
  --log-rx: #7ee2a8;
  --log-dim: #7d8b96;

  /* effects */
  --shadow-card: 0 1px 2px rgba(16, 28, 34, 0.05),
    0 4px 12px rgba(16, 28, 34, 0.04);
  --focus-ring: 0 0 0 3px rgba(254, 80, 0, 0.28);
  --backdrop: rgba(10, 18, 24, 0.5);

  /* Inter is NOT vendored here (no font file in this repo) — the stack
     falls straight through to the platform UI face. */
  --font-ui: Inter, "Segoe UI Variable Text", system-ui, "Segoe UI", sans-serif;
  --font-mono: "Cascadia Code", Consolas, "Courier New", monospace;
}

:root[data-theme="dark"] {
  color-scheme: dark;

  --bg: #0d1117;
  --card: #151b23;
  --surface-2: #11161d;
  --surface-3: #1a212b;
  --surface-inset: #10151b;

  --ink: #dbe4ec;
  --ink-strong: #f0f5f9;
  --muted: #8b98a5;
  --faint: #5f6d78;

  --line: #232c37;
  --line-soft: #1d2530;
  --line-strong: #2d3844;

  /* on dark surfaces the lifted orange doesn't vibrate — fill = accent */
  --accent: #ff6a2e;
  --accent-fill: #ff6a2e;
  --accent-hover: #ff8049;
  --accent-ink: #2a0f00;
  --accent-text: #ff8656;
  --accent-soft: rgba(255, 106, 46, 0.13);
  --accent-soft-border: rgba(255, 106, 46, 0.32);
  --accent-2: #5aa7d0;

  --control-bg: #1c242e;
  --control-hover: #232d39;

  --warn: #e8b04b;
  --warn-bg: #241d10;
  --warn-border: #4a3a1c;
  --danger: #ff6b6b;
  --danger-bg: #2a1618;
  --danger-border: #4d2529;
  --ok: #3ddc84;
  --ok-bg: #10241a;
  --ok-border: #1e4630;
  --info-bg: #121c24;
  --info-border: #22323f;

  --log-bg: #0a0e13;
  --log-line: #1d2632;

  --shadow-card: none;
  --focus-ring: 0 0 0 3px rgba(255, 106, 46, 0.35);
  --backdrop: rgba(0, 0, 0, 0.6);
}

/* OS preference, honoured only when the page has NOT pinned light. Values
   are the same as the [data-theme="dark"] block above; CSS cannot share one
   declaration block across a media-query boundary, so it is duplicated. */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;

    --bg: #0d1117;
    --card: #151b23;
    --surface-2: #11161d;
    --surface-3: #1a212b;
    --surface-inset: #10151b;

    --ink: #dbe4ec;
    --ink-strong: #f0f5f9;
    --muted: #8b98a5;
    --faint: #5f6d78;

    --line: #232c37;
    --line-soft: #1d2530;
    --line-strong: #2d3844;

    --accent: #ff6a2e;
    --accent-fill: #ff6a2e;
    --accent-hover: #ff8049;
    --accent-ink: #2a0f00;
    --accent-text: #ff8656;
    --accent-soft: rgba(255, 106, 46, 0.13);
    --accent-soft-border: rgba(255, 106, 46, 0.32);
    --accent-2: #5aa7d0;

    --control-bg: #1c242e;
    --control-hover: #232d39;

    --warn: #e8b04b;
    --warn-bg: #241d10;
    --warn-border: #4a3a1c;
    --danger: #ff6b6b;
    --danger-bg: #2a1618;
    --danger-border: #4d2529;
    --ok: #3ddc84;
    --ok-bg: #10241a;
    --ok-border: #1e4630;
    --info-bg: #121c24;
    --info-border: #22323f;

    --log-bg: #0a0e13;
    --log-line: #1d2632;

    --shadow-card: none;
    --focus-ring: 0 0 0 3px rgba(255, 106, 46, 0.35);
    --backdrop: rgba(0, 0, 0, 0.6);
  }
}

/* =========================================================================
   Base
   ========================================================================= */

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 14px/1.5 var(--font-ui);
  min-height: 100vh;
}

.page {
  max-width: 1500px;
  margin: 14px auto;
  padding: 0 12px 18px;
}

h1,
h2,
h3 {
  margin: 0 0 10px;
}

h1 {
  font-size: 20px;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--ink-strong);
}

h2 {
  font-size: 16px;
  font-weight: 600;
  color: var(--ink-strong);
}

a {
  color: var(--accent-text);
}

.muted {
  color: var(--muted);
}

.mono {
  font-family: var(--font-mono);
  font-size: 12px;
}

code,
kbd {
  font-family: var(--font-mono);
  font-size: 0.92em;
}

/* =========================================================================
   Layout
   ========================================================================= */

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 14px;
  box-shadow: var(--shadow-card);
  margin-bottom: 12px;
}

.card-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--ink-strong);
  margin: 0 0 10px;
}

.row {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
  margin-bottom: 8px;
}

.row:last-child {
  margin-bottom: 0;
}

/* min(100%, 300px): columns are 300px wide when there's room, but shrink
   to fit (never overflow) once the container is narrower than 300px. */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr));
  gap: 10px;
}

.kv {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 5px 10px;
  margin-top: 4px;
  font-variant-numeric: tabular-nums;
}

/* =========================================================================
   Pills and banners
   ========================================================================= */

.pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 10px;
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  background: var(--surface-3);
  color: var(--muted);
  font-size: 12px;
  font-weight: 600;
}

.pill.on {
  border-color: var(--ok-border);
  background: var(--ok-bg);
  color: var(--ok);
}

.pill.err {
  border-color: var(--danger-border);
  background: var(--danger-bg);
  color: var(--danger);
}

/* Not a fault — something the reader has to know. "Never calibrated" and
   "edited, not written" are both this, and neither is an error. */
.pill.warn {
  border-color: var(--warn-border);
  background: var(--warn-bg);
  color: var(--warn);
}

.banner {
  border: 1px solid var(--line);
  border-left: 3px solid var(--line-strong);
  background: var(--surface-2);
  color: var(--ink);
  border-radius: 10px;
  padding: 9px 12px;
  margin: 8px 0;
}

/* An empty banner takes no space, so a page can keep one in the markup and
   only fill in textContent when there is something to say. */
.banner:empty {
  display: none;
}

.banner.ok {
  border-color: var(--ok-border);
  border-left-color: var(--ok);
  background: var(--ok-bg);
}

.banner.err {
  border-color: var(--danger-border);
  border-left-color: var(--danger);
  background: var(--danger-bg);
}

.banner.warn {
  border-color: var(--warn-border);
  border-left-color: var(--warn);
  background: var(--warn-bg);
  color: var(--warn);
}

.banner.info {
  border-color: var(--info-border);
  border-left-color: var(--accent-2);
  background: var(--info-bg);
}

/* =========================================================================
   Controls
   ========================================================================= */

button,
input,
select,
textarea {
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  padding: 8px 10px;
  font: inherit;
  background: var(--control-bg);
  color: var(--ink);
  max-width: 100%;
}

textarea {
  font-family: var(--font-mono);
  font-size: 12px;
  resize: vertical;
}

button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
a:focus-visible,
[role="tab"]:focus-visible,
summary:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
}

input[type="checkbox"],
input[type="radio"] {
  accent-color: var(--accent);
}

input[readonly],
textarea[readonly] {
  background: var(--surface-inset);
  color: var(--muted);
  border-color: var(--line-strong);
  cursor: not-allowed;
}

button {
  padding: 8px 13px;
  cursor: pointer;
  font-weight: 600;
  transition:
    background 0.12s,
    border-color 0.12s,
    color 0.12s;
}

button:hover:not(:disabled) {
  background: var(--control-hover);
}

/* Solid accent block — --accent-fill, never --accent (see the token note). */
button.primary {
  color: var(--accent-ink);
  border-color: transparent;
  background: var(--accent-fill);
}

button.primary:hover:not(:disabled) {
  background: var(--accent-hover);
}

button.secondary {
  color: var(--accent-text);
  border-color: var(--accent-soft-border);
  background: var(--accent-soft);
}

button.secondary:hover:not(:disabled) {
  background: var(--accent-soft);
  border-color: var(--accent);
}

button.danger {
  color: var(--danger);
  border-color: var(--danger-border);
  background: var(--danger-bg);
}

button.danger:hover:not(:disabled) {
  background: var(--danger-bg);
  border-color: var(--danger);
}

button.warn {
  border-color: var(--warn-border);
  background: var(--warn-bg);
  color: var(--warn);
}

button.warn:hover:not(:disabled) {
  background: var(--warn-bg);
  border-color: var(--warn);
}

button:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

/* Light/dark switch (initThemeToggle in common/theme.js sets the glyph). */
.theme-toggle {
  width: 34px;
  height: 34px;
  padding: 0;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  line-height: 1;
  color: var(--muted);
}

.theme-toggle:hover:not(:disabled) {
  color: var(--ink);
}

label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

/* =========================================================================
   Collapsible groups: <details class="group"><summary>…
   (console .op-group, renamed for reuse outside the op-config editor)
   ========================================================================= */

details.group {
  border: 1px solid var(--line-soft);
  border-radius: 10px;
  background: var(--surface-2);
  margin-bottom: 8px;
  overflow: hidden;
}

details.group > summary {
  cursor: pointer;
  list-style: none;
  padding: 8px 10px;
  font-weight: 600;
  color: var(--ink);
  background: var(--surface-3);
  border-bottom: 1px solid var(--line-soft);
  display: flex;
  align-items: center;
  gap: 8px;
}

details.group > summary::before {
  content: "+";
  width: 16px;
  height: 16px;
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  color: var(--muted);
  background: var(--card);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  line-height: 1;
  font-weight: 700;
  flex: 0 0 16px;
}

details.group[open] > summary::before {
  content: "-";
}

details.group > summary::marker {
  content: "";
}

details.group > summary::-webkit-details-marker {
  display: none;
}

.group-body {
  padding: 10px;
}

/* =========================================================================
   Config fields
   ========================================================================= */

.field {
  border: 1px solid var(--line-soft);
  border-radius: 10px;
  background: var(--card);
  padding: 8px;
  display: flex;
  flex-direction: column;
  gap: 5px;
  min-width: 0;
}

.field > label {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 600;
  color: var(--muted);
}

.field input,
.field select,
.field textarea {
  width: 100%;
}

.field-hint {
  font-size: 11px;
  color: var(--faint);
}

/* Settings search, above the configuration groups. */
.config-search {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 10px;
  flex-wrap: wrap;
}

.config-search > label {
  font-size: 12px;
  font-weight: 600;
  color: var(--muted);
}

.config-search > input {
  flex: 1 1 200px;
  min-width: 0;
}

/* Shown and round-tripped, but never editable — a deprecated option, or one
   belonging to a licensed feature. Deliberately quiet rather than alarming:
   nothing is wrong, the setting simply is not changed from here. */
.field.readonly {
  background: var(--card-soft, var(--card));
  border-style: dashed;
}

/* Field differs from the device's last-read value. */
.field.dirty {
  border-color: var(--warn);
}

.field.dirty > label::after {
  content: "\25cf"; /* ● */
  color: var(--warn);
  font-size: 9px;
  margin-left: 6px;
  vertical-align: 2px;
}

.dirty-pill {
  padding: 2px 10px;
  border-radius: 999px;
  background: var(--warn-bg);
  border: 1px solid var(--warn-border);
  color: var(--warn);
  font-size: 12px;
  font-weight: 600;
}

/* =========================================================================
   Tabs — WAI-ARIA tablist, wired by initTabs() in common/ui-chrome.js.
   Markup: .tabs > button[data-tab="panelId"], plus .tab[id] panels.
   ========================================================================= */

.tabs {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
  border-bottom: 1px solid var(--line);
  margin-bottom: 12px;
}

.tabs > button,
.tabs > [role="tab"] {
  border: 0;
  border-radius: 0;
  background: none;
  padding: 8px 12px 10px;
  font-weight: 600;
  color: var(--muted);
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
}

.tabs > button:hover:not(:disabled),
.tabs > [role="tab"]:hover:not(:disabled) {
  background: none;
  color: var(--ink);
}

/* aria-selected is the single source of truth for the active tab — initTabs
   sets it, so the underline cannot drift out of step with the ARIA state. */
.tabs [role="tab"][aria-selected="true"] {
  color: var(--accent-text);
  background: none;
  border-bottom-color: var(--accent);
}

.tab {
  display: none;
}

.tab.active,
.tab[aria-selected="true"] {
  display: block;
}

/* =========================================================================
   Toasts — bottom-right stack, auto-dismissing.
   showToast() in common/ui-chrome.js creates .toast-stack#toasts on demand.
   ========================================================================= */

.toast-stack {
  position: fixed;
  right: 14px;
  bottom: 14px;
  z-index: 60;
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-width: min(360px, calc(100vw - 28px));
}

.toast {
  background: var(--card);
  color: var(--ink);
  border: 1px solid var(--line);
  border-left: 3px solid var(--accent);
  border-radius: 10px;
  padding: 10px 14px;
  font-size: 13px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.18);
  cursor: pointer;
  animation: toast-in 0.16s ease-out;
}

.toast.ok {
  border-left-color: var(--ok);
}

.toast.err {
  border-left-color: var(--danger);
}

.toast.warn {
  border-left-color: var(--warn);
}

.toast.info {
  border-left-color: var(--accent-2);
}

.toast.leaving {
  opacity: 0;
  transition: opacity 0.18s;
}

@keyframes toast-in {
  from {
    opacity: 0;
    transform: translateY(6px);
  }

  to {
    opacity: 1;
    transform: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .toast {
    animation: none;
  }

  button {
    transition: none;
  }
}

/* =========================================================================
   Event log — a terminal surface, so it stays dark in BOTH themes.
   ========================================================================= */

.log {
  width: 100%;
  height: 340px;
  border-radius: 10px;
  border: 1px solid var(--log-line);
  background: var(--log-bg);
  color: var(--log-ink);
  overflow: auto;
  white-space: pre-wrap;
  word-break: break-word;
  padding: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.35;
}

.log-line {
  white-space: pre-wrap;
  word-break: break-word;
}

.log-line.sev-info {
  color: var(--log-ink);
}

.log-line.sev-err {
  color: var(--log-bad);
}

.log-line.sev-warn {
  color: var(--log-warn);
}

.log-line.sev-tx {
  color: var(--log-tx);
}

.log-line.sev-rx {
  color: var(--log-rx);
}

.log-line.sev-data {
  color: var(--log-dim);
}

.log-toolbar {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
  margin-bottom: 8px;
}

.log-toolbar input[type="search"] {
  flex: 1;
  min-width: 120px;
}

.log-count {
  font-size: 12px;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}

/* =========================================================================
   Hex view — a monospace byte grid (InfoMem is 3 pages of 128 bytes, so the
   row width is fixed at 16 and the whole 384-byte dump scrolls in place).
   ========================================================================= */

.hexview {
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.5;
  background: var(--surface-inset);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 8px 10px;
  max-height: 420px;
  overflow: auto;
}

.hexview-row {
  display: grid;
  grid-template-columns: 5.5ch repeat(16, 2.5ch);
  gap: 0 2px;
  white-space: nowrap;
}

.hexview-addr {
  color: var(--faint);
  user-select: none;
}

.hexview-byte {
  text-align: center;
  color: var(--ink);
  border-radius: 3px;
}

/* 0x00 and 0xFF are the two "nothing here" values — dimming them makes the
   real payload readable at a glance in a 384-byte dump. */
.hexview-byte.zero,
.hexview-byte.blank {
  color: var(--faint);
}

.hexview-byte.changed {
  background: var(--accent-soft);
  color: var(--accent-text);
  font-weight: 600;
}

.hexview-byte.sel {
  background: var(--accent-fill);
  color: var(--accent-ink);
}

/* =========================================================================
   Stats strip — live Hz / loss / throughput while streaming.
   ========================================================================= */

.stats {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 18px;
  align-items: baseline;
  padding: 8px 10px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--surface-2);
  font-variant-numeric: tabular-nums;
}

.stats > div {
  display: flex;
  flex-direction: column;
  min-width: 72px;
}

.stat-label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--faint);
}

.stat-value {
  font-size: 15px;
  font-weight: 600;
  color: var(--ink-strong);
}

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

.stat-value.warn {
  color: var(--warn);
}

/* =========================================================================
   Plots — one canvas panel per sensor group (common/plot.js). The canvas
   needs a sized block parent because Chart.js runs with
   maintainAspectRatio:false.
   ========================================================================= */

.plot-panels {
  display: grid;
  gap: 10px;
}

.plot-panel {
  position: relative;
  height: 200px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--card);
  padding: 6px;
}

.plot-panel > canvas {
  width: 100%;
  height: 100%;
  display: block;
}

/* =========================================================================
   SD card browser — the selectable on-card tree and the transfer progress
   bar (common/sd-browser.js). Monospace, because a card path is a path.
   ========================================================================= */

.sd-tree {
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.7;
  max-height: 420px;
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--surface-2);
  padding: 8px 10px;
}

.sd-tree ul {
  list-style: none;
  margin: 0;
  padding-left: 20px;
}

/* The outermost list sits flush: the checkbox is the indent. */
.sd-tree > ul {
  padding-left: 0;
}

.sd-tree label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  color: var(--ink-strong);
  font-weight: 600;
}

.sd-tree label input {
  width: auto;
  flex: 0 0 auto;
}

.sd-tree .sd-size {
  color: var(--muted);
  margin-left: 8px;
  font-weight: 400;
}

.sd-tree .sd-file {
  color: var(--muted);
}

/* Painted from the tokens rather than left to the UA widget: a <progress>
   follows the OPERATING SYSTEM colour scheme, not the page's data-theme, so
   an explicitly-light page on a dark host was drawing a black bar. */
.sd-progress {
  width: 100%;
  height: 14px;
  appearance: none;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: var(--surface-inset);
  overflow: hidden;
}

.sd-progress::-webkit-progress-bar {
  background: var(--surface-inset);
}

.sd-progress::-webkit-progress-value {
  background: var(--accent);
}

.sd-progress::-moz-progress-bar {
  background: var(--accent);
}

/* =========================================================================
   Device naming — the per-field preview and error under each name box
   (common/brand-editor.js). Both live inside a .field, so they inherit its
   column and only need their own type and colour.
   ========================================================================= */

/* The panel puts its input INSIDE its label rather than tying the two
   together by id, because a panel a page can mount twice must not plant
   fixed ids. `.field > label` is a flex ROW, though, so a full-width input
   next to the label text squeezes the text into three lines — block here
   stacks them, which is what every other field on the page looks like. */
.field[data-brand-field] > label {
  display: block;
}

.field[data-brand-field] > label input {
  margin-top: 5px;
}

.brand-preview {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--faint);
  /* A preview is a name plus a MAC suffix plus, on an unidentified sensor,
     both platforms' forms — so it wraps rather than widening the column. */
  overflow-wrap: anywhere;
}

.brand-error {
  font-size: 11px;
  font-weight: 600;
  color: var(--danger);
}

/* Neither takes any space when there is nothing to say, so a field with a
   valid name is exactly as tall as one with no preview at all. */
.brand-preview:empty,
.brand-error:empty {
  display: none;
}

/* The box a name cannot be written from. Also on :focus-visible, or the
   focus ring's border colour hides the very field it is reporting. */
.field input.bad,
.field input.bad:focus-visible {
  border-color: var(--danger);
}

.brand-steps {
  margin: 6px 0 0 18px;
  padding: 0;
}

.brand-steps li {
  margin: 2px 0;
}

/* =========================================================================
   Calibration editor (common/calibration-editor.js)

   One card per sensor, each holding three labelled number grids: offset
   (3x1), sensitivity (3x1) and alignment (3x3). The three sit side by side
   and wrap as a unit, so a narrow window stacks whole grids rather than
   breaking a matrix across a line — a 3x3 with a row hanging under it is
   unreadable as a matrix.
   ========================================================================= */

.cal-grids {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 8px;
}

.cal-block {
  min-width: 0;
}

.cal-block-title {
  display: flex;
  align-items: baseline;
  gap: 6px;
  font-size: 12px;
  font-weight: 600;
  color: var(--muted);
  margin-bottom: 5px;
}

.cal-unit {
  font-weight: 400;
  font-size: 11px;
  color: var(--faint);
}

.cal-matrix {
  display: grid;
  gap: 4px;
  align-items: center;
}

/* Leading column is the axis label; the rest are boxes. */
.cal-matrix.cols-1 {
  grid-template-columns: 14px 104px;
}

.cal-matrix.cols-3 {
  grid-template-columns: 14px repeat(3, 74px);
}

.cal-axis {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--faint);
  text-align: right;
}

/* Numbers, so they line up column-wise and a sign never shifts the digits. */
input.cal-cell {
  font-family: var(--font-mono);
  font-size: 12px;
  text-align: right;
  padding: 4px 6px;
  width: 100%;
}

input.cal-cell:read-only {
  background: var(--surface-inset);
  color: var(--muted);
}

input.cal-cell.bad,
input.cal-cell.bad:focus-visible {
  border-color: var(--danger);
}

.cal-error {
  margin-top: 8px;
  font-size: 11px;
  font-weight: 600;
  color: var(--danger);
}

.cal-chip {
  font-size: 11px;
  font-weight: 400;
  color: var(--faint);
}

.cal-range {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 600;
  color: var(--muted);
}

/* Eats the slack in the row, so Restore defaults sits at the far end. */
.cal-push {
  flex: 1 1 auto;
}

/* A sensor whose stored calibration is not what the boxes now say. Matches
   the dirty-field treatment on the configuration form, deliberately: it is
   the same statement — "this differs from the device". */
.card[data-cal-dirty="true"] {
  border-color: var(--warn-border);
}

/* =========================================================================
   Kinematic block editor inside the configuration form
   (common/kinematic-block-editor.js)

   The same three grids as the cards above, rendered as one field's control
   instead of as a card of its own — so the Configure tab's Calibration
   section reads like the Calibration tab rather than like forty-two hex
   characters. Everything visual is reused from the block above; only the
   wrapper and the "these are defaults, not measurements" treatment are new.
   ========================================================================= */

.cal-inline {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 0;
}

.cal-inline-head {
  align-items: center;
  gap: 8px;
}

/* Three grids side by side need about 520px. The field grid's columns are
   300px minimum, so a calibration field takes the whole row rather than
   wrapping its matrices into a column one box wide. */
.field:has(.cal-inline) {
  grid-column: 1 / -1;
}

/* Boxes holding the factory defaults the firmware would fall back to, not
   values read off the device. Greyed for the same reason the cards grey
   them: they are what the sensor WOULD use, and mistaking them for a stored
   calibration is the one misreading that matters here. */
input.cal-cell.faint {
  color: var(--faint);
  font-style: italic;
}

/* The destination preview when the download is about to produce a tree
   Consensys cannot import — the MAC could not be read, so the device folder
   will be named after the Shimmer instead. A colour rather than a `.banner`,
   because the element is a `.row` and has to keep its spacing: this is the one
   line that gets to say so before the transfer starts. */
.preview-warn {
  color: var(--warn);
  font-weight: 600;
}

/* A custom editor supplies its own labels for its own boxes, so the field
   name above it is a heading rather than a <label for>. Matched to the
   weight and colour a real field label has, so a mixed grid of default
   controls and editors does not look like two forms. */
.field-editor-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--muted);
}

/* =========================================================================
   Narrow screens: one column everywhere.
   ========================================================================= */

/* ---------------------------------------------------------------------------
   Factory self-test report (common/factory-test-panel.js)
   --------------------------------------------------------------------------- */

/* A terminal surface, dark in both themes exactly like `.log`: this is device
   output printed line by line, and reading it as a terminal is the point. The
   height cap keeps a 75-line report from pushing the controls off screen while
   still showing enough to follow a paced LED test. */
.test-report {
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.35;
  white-space: pre-wrap;
  word-break: break-word;
  background: var(--log-bg);
  color: var(--log-ink);
  border: 1px solid var(--log-line);
  border-radius: 10px;
  padding: 10px;
  max-height: min(46vh, 480px);
  overflow: auto;
}

/* No empty box before a test has been run. */
.test-report:empty {
  display: none;
}

/* The three verdict words the firmware prints, on the log palette so they read
   against the dark surface in either theme. */
.tr-pass {
  color: var(--log-ok);
  font-weight: 700;
}

.tr-fail {
  color: var(--log-bad);
  font-weight: 700;
}

.tr-warn {
  color: var(--log-warn);
  font-weight: 700;
}

/* ---------------------------------------------------------------------------
   Real-world-clock drift plot (common/rtc-drift-panel.js)
   --------------------------------------------------------------------------- */

/* The canvas sizes its backing store from the WRAPPER's width, so this rule
   owns the layout size. Changing the height means changing PLOT_HEIGHT_PX in
   the panel to match. */
.drift-plot {
  display: block;
  width: 100%;
  height: 180px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--surface-2);
}

@media (max-width: 720px) {
  .page {
    margin: 8px auto;
    padding: 0 8px 14px;
  }

  .grid,
  .plot-panels {
    grid-template-columns: 1fr;
  }

  .kv {
    grid-template-columns: 1fr;
  }

  /* Buttons grow to share the row rather than each claiming a full line —
     a row of three actions reads better as one band than as three. Icon
     buttons keep their fixed size; a stretched circle is not a circle. */
  .row > button:not(.theme-toggle) {
    flex: 1 1 auto;
    min-width: 0;
  }

  .row > select,
  .row > input:not([type="checkbox"]):not([type="radio"]) {
    flex: 1 1 100%;
  }

  .toast-stack {
    right: 8px;
    left: 8px;
    bottom: 8px;
    max-width: none;
  }

  .log {
    height: 260px;
  }

  .test-report {
    max-height: 40vh;
  }

  .drift-plot {
    height: 150px;
  }
}