:root {
  --font-body: "Public Sans", "Segoe UI Variable", "Microsoft YaHei UI", "Segoe UI", sans-serif;
  --font-mono: "Cascadia Mono", "SFMono-Regular", "Consolas", monospace;

  --app-bg-image: url("data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///ywAAAAAAQABAAACAUwAOw==");

  --color-bg: #fcfdfe;
  --color-bg-deep: #f4f7f9;
  --color-surface: #fdfeff;
  --color-surface-strong: #ffffff;
  --color-surface-muted: #f4f6f8;
  --color-border: #e2e7ed;
  --color-border-strong: #cbd5e1;
  --color-text: #0a1121;
  --color-muted: #667085;
  --color-accent: #192237;
  --color-accent-strong: #0f172a;
  --color-accent-soft: #eef5fb;
  --color-danger: #c0362c;
  --color-danger-soft: #fff0ee;
  --color-warning: #98630c;
  --color-warning-soft: #fff7df;
  --color-success: #087443;
  --color-success-soft: #eaf8ef;
  --color-info: #2d7fae;
  --color-info-soft: #eaf6fc;
  --color-on-accent: #ffffff;
  --color-control: #ffffff;
  --color-control-hover: #f7fafc;
  --color-select-popup: #ffffff;
  --color-select-option-hover: #eef5fb;
  --color-select-option-checked: #192237;
  --color-code-bg: #111827;
  --color-code-text: #d8e3ed;
  --color-overlay: rgba(15, 23, 42, 0.48);
  --ring-color: rgba(64, 163, 216, 0.26);

  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 3rem;

  --radius-sm: 0.5rem;
  --radius-md: 0.625rem;
  --radius-lg: 0.875rem;
  --glass-blur: 0;
  --glass-saturate: 100%;
  --shadow-panel: 0 12px 28px rgba(15, 23, 42, 0.06);
  --shadow-soft: 0 8px 18px rgba(15, 23, 42, 0.05);
  --transition-fast: 160ms ease;
  --transition-base: 240ms ease;
}

html {
  color-scheme: light;
}

html:has(input[name="appearance"][value="dark"]:checked) {
  color-scheme: dark;
  --color-bg: #1c2029;
  --color-bg-deep: #151922;
  --color-surface: #242830;
  --color-surface-strong: #292e37;
  --color-surface-muted: #2b2f37;
  --color-border: #3e424c;
  --color-border-strong: #59606d;
  --color-text: #d1d8e1;
  --color-muted: #98a2b3;
  --color-accent: #40a3d8;
  --color-accent-strong: #8bd3f7;
  --color-accent-soft: #303944;
  --color-danger: #ff8b7f;
  --color-danger-soft: #3b2729;
  --color-warning: #ffd36a;
  --color-warning-soft: #3a3020;
  --color-success: #70e0a8;
  --color-success-soft: #20382b;
  --color-info: #8bd3f7;
  --color-info-soft: #243746;
  --color-on-accent: #07111a;
  --color-control: #1f232b;
  --color-control-hover: #2f333b;
  --color-select-popup: #242830;
  --color-select-option-hover: #303944;
  --color-select-option-checked: #40a3d8;
  --color-code-bg: #10141c;
  --color-code-text: #e3eaf2;
  --color-overlay: rgba(6, 9, 14, 0.64);
  --ring-color: rgba(75, 142, 181, 0.34);
  --shadow-panel: 0 14px 30px rgba(0, 0, 0, 0.18);
  --shadow-soft: 0 8px 18px rgba(0, 0, 0, 0.14);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-bg);
  transition: background var(--transition-base), color var(--transition-base);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(var(--color-border) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-border) 1px, transparent 1px);
  background-size: 40px 40px;
  opacity: 0.28;
  z-index: 0;
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(180deg, transparent 0, color-mix(in srgb, var(--color-bg) 78%, transparent) 88%);
  z-index: 0;
}

button,
input,
select {
  font: inherit;
}

button,
input,
select,
option,
optgroup {
  color-scheme: light;
}

html:has(input[name="appearance"][value="dark"]:checked) button,
html:has(input[name="appearance"][value="dark"]:checked) input,
html:has(input[name="appearance"][value="dark"]:checked) select,
html:has(input[name="appearance"][value="dark"]:checked) option,
html:has(input[name="appearance"][value="dark"]:checked) optgroup {
  color-scheme: dark;
}

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

.app-shell {
  position: relative;
  z-index: 1;
  width: min(86rem, calc(100% - var(--space-5)));
  margin: 0 auto;
  padding: var(--space-4) 0 var(--space-7);
  opacity: 1;
  transition: opacity 220ms ease;
}

body.bg-loading .app-shell {
  opacity: 0;
  pointer-events: none;
}

.hero,
.status-strip,
.panel,
.footer-note {
  position: relative;
  z-index: 1;
}

.hero {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  margin-bottom: var(--space-4);
}

.hero-copy,
.hero-card,
.panel,
.status-strip,
.footer-note {
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  box-shadow: var(--shadow-panel);
}

.hero-copy,
.hero-card,
.panel,
.footer-note {
  border-radius: var(--radius-md);
}

.app-topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  min-height: 4.5rem;
  padding: var(--space-2) 0;
  background: color-mix(in srgb, var(--color-bg) 88%, transparent);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
}

.hero-copy {
  display: flex;
  align-items: center;
  flex: 1 1 auto;
  gap: var(--space-3);
  padding: 0;
  border: 0;
  background: transparent;
  box-shadow: none;
}

.brand-logo {
  width: 3.2rem;
  height: 3.2rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  object-fit: cover;
  background: var(--color-surface-strong);
  box-shadow: var(--shadow-soft);
}

.hero-card {
  padding: var(--space-5);
  background: var(--color-surface);
}

.eyebrow,
.kicker {
  margin: 0 0 0.15rem;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent-strong);
}

.topbar-controls {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  flex-wrap: wrap;
  gap: var(--space-2);
}

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

h1 {
  max-width: 14ch;
  font-size: clamp(2.3rem, 5vw, 4.2rem);
  line-height: 0.95;
  letter-spacing: 0;
}

.brand-title {
  max-width: none;
  font-size: clamp(1.55rem, 4vw, 2.25rem);
  line-height: 1;
  letter-spacing: 0;
}

h2 {
  font-size: 1.35rem;
  line-height: 1.05;
}

.lead {
  max-width: 44rem;
  margin-top: var(--space-4);
  color: var(--color-muted);
  font-size: 1.03rem;
  line-height: 1.7;
}

.steps {
  margin: var(--space-4) 0 0;
  padding-left: 1.2rem;
  color: var(--color-muted);
  display: grid;
  gap: var(--space-3);
}

.steps code {
  padding: 0.14rem 0.35rem;
  border-radius: 999px;
  background: var(--color-accent-soft);
  color: var(--color-accent-strong);
}

.theme-switch {
  display: inline-flex;
  align-items: center;
  flex: 0 0 auto;
  gap: 0.25rem;
  padding: 0.25rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  box-shadow: var(--shadow-soft);
}

.theme-switch-label {
  padding: 0 0.65rem 0 0.55rem;
  color: var(--color-muted);
  font-size: 0.78rem;
  font-weight: 700;
}

.theme-option {
  position: relative;
  display: inline-flex;
}

.theme-option input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.theme-option span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.05rem;
  padding: 0.35rem 0.78rem;
  border-radius: calc(var(--radius-md) - 0.25rem);
  color: var(--color-muted);
  font-size: 0.82rem;
  font-weight: 700;
  transition: background var(--transition-fast), color var(--transition-fast), box-shadow var(--transition-fast);
}

.theme-option input:checked + span {
  background: var(--color-accent);
  color: var(--color-on-accent);
  box-shadow: var(--shadow-soft);
}

.theme-option input:focus-visible + span {
  box-shadow: 0 0 0 0.2rem var(--ring-color);
}

.status-strip {
  display: flex;
  gap: var(--space-4);
  align-items: center;
  padding: var(--space-3) var(--space-4);
  margin-bottom: var(--space-4);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-soft);
}

.pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2rem;
  padding: 0.3rem 0.75rem;
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  white-space: nowrap;
}

.pill-neutral {
  background: var(--color-surface-muted);
  color: var(--color-muted);
}

.pill-info {
  background: var(--color-accent-soft);
  color: var(--color-accent-strong);
}

.pill-success {
  background: var(--color-success-soft);
  color: var(--color-success);
}

.pill-error {
  background: var(--color-danger-soft);
  color: var(--color-danger);
}

.pill-warning {
  background: var(--color-warning-soft);
  color: var(--color-warning);
}

.dashboard {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: var(--space-5);
}

.dashboard-toolbar {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
}

.page-switcher {
  display: flex;
  flex: 1 1 auto;
  gap: 0.25rem;
  flex-wrap: wrap;
  padding: 0.25rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  box-shadow: var(--shadow-soft);
}

.toolbar-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: var(--space-2);
}

.page-switch-button {
  min-height: 2.3rem;
  border: 1px solid transparent;
  border-radius: calc(var(--radius-md) - 0.25rem);
  padding: 0.45rem 0.95rem;
  background: transparent;
  color: var(--color-muted);
  font-weight: 700;
  cursor: pointer;
  transition:
    background var(--transition-fast),
    border-color var(--transition-fast),
    color var(--transition-fast),
    transform var(--transition-fast),
    box-shadow var(--transition-fast);
}

.page-switch-button.is-active {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-on-accent);
  box-shadow: var(--shadow-soft);
}

.page-switch-button:hover {
  background: var(--color-control-hover);
  color: var(--color-text);
}

.page-switch-button.is-active:hover {
  background: var(--color-accent);
  color: var(--color-on-accent);
}

.page-switch-button:focus-visible {
  outline: none;
  box-shadow: 0 0 0 0.22rem var(--ring-color);
}

.panel {
  padding: var(--space-4);
}

.panel-connection,
.panel-actions,
.panel-diagnostics {
  grid-column: span 4;
}

.panel-settings,
.panel-live {
  grid-column: span 8;
}

.panel-mapping {
  grid-column: 1 / -1;
}

.diagnostics-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-4);
  margin-bottom: var(--space-4);
}

.diagnostics-grid strong {
  display: block;
  margin-top: var(--space-1);
  font-size: 1.04rem;
}

.panel-heading {
  display: flex;
  justify-content: space-between;
  align-items: start;
  gap: var(--space-4);
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--color-border);
}

.panel-actions,
.compact-row,
.field-row,
.action-stack {
  display: flex;
  gap: var(--space-3);
}

.compact-row {
  flex-wrap: wrap;
  justify-content: flex-end;
}

.panel-note,
.meta-label,
.field-label,
.mapping-subtitle,
.live-detail {
  color: var(--color-muted);
}

.panel-note {
  line-height: 1.6;
}

.meta-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-3);
}

.meta-grid > div {
  padding: var(--space-3);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-surface-muted);
}

.meta-grid strong {
  display: block;
  margin-top: var(--space-1);
  font-size: 1.04rem;
}

.meta-label,
.field-label {
  display: block;
  font-size: 0.82rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.field-hint {
  display: block;
  margin-top: 0.12rem;
  font-size: 0.76rem;
  line-height: 1.4;
  color: var(--color-muted);
}

.field-row {
  margin-bottom: var(--space-4);
}

.field {
  display: grid;
  gap: var(--space-2);
}

.field-inline {
  width: min(16rem, 100%);
}

input[type="number"],
select {
  width: 100%;
  min-height: 2.65rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-control);
  color: var(--color-text);
  padding: 0.58rem 0.75rem;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast);
}

select {
  background-color: var(--color-control);
  accent-color: var(--color-accent);
}

select option,
select optgroup {
  background-color: var(--color-select-popup);
  color: var(--color-text);
  font: inherit;
}

select option {
  min-height: 2rem;
  padding: 0.45rem 0.75rem;
}

select option:checked {
  background-color: var(--color-select-option-checked);
  color: var(--color-on-accent);
}

select option:hover,
select option:focus {
  background-color: var(--color-select-option-hover);
  color: var(--color-text);
}

.appearance-select {
  position: relative;
  display: block;
  width: 100%;
}

.appearance-select-native {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  pointer-events: none;
}

.appearance-select-button {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
  width: 100%;
  min-height: 2.65rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-control);
  color: var(--color-text);
  padding: 0.58rem 0.75rem;
  font-weight: 500;
  text-align: left;
  cursor: pointer;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast);
}

.appearance-select-button:hover:not(:disabled),
.appearance-select.is-open .appearance-select-button {
  border-color: var(--color-accent);
  background: var(--color-control-hover);
}

.appearance-select-button:focus-visible {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 0.22rem var(--ring-color);
}

.appearance-select-button:disabled {
  background: var(--color-surface-muted);
  color: var(--color-muted);
  cursor: not-allowed;
}

.appearance-select-value {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.appearance-select-chevron {
  width: 0.55rem;
  height: 0.55rem;
  flex: 0 0 auto;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  color: var(--color-muted);
  transform: translateY(-0.12rem) rotate(45deg);
  transition: transform var(--transition-fast), color var(--transition-fast);
}

.appearance-select.is-open .appearance-select-chevron {
  color: var(--color-accent-strong);
  transform: translateY(0.12rem) rotate(225deg);
}

.appearance-select-menu {
  position: absolute;
  z-index: 60;
  left: 0;
  right: 0;
  top: calc(100% + 0.35rem);
  display: none;
  max-height: min(18rem, 48vh);
  overflow: auto;
  padding: 0.35rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-select-popup);
  box-shadow: var(--shadow-panel);
}

.appearance-select.is-open .appearance-select-menu {
  display: grid;
  gap: 0.2rem;
}

.appearance-select-option {
  width: 100%;
  min-height: 2.15rem;
  border: 0;
  border-radius: calc(var(--radius-sm) - 0.15rem);
  background: transparent;
  color: var(--color-text);
  padding: 0.48rem 0.62rem;
  font-weight: 600;
  text-align: left;
  cursor: pointer;
}

.appearance-select-option:hover,
.appearance-select-option:focus-visible {
  outline: none;
  background: var(--color-select-option-hover);
}

.appearance-select-option.is-selected {
  background: var(--color-select-option-checked);
  color: var(--color-on-accent);
}

.appearance-select-option:disabled {
  color: var(--color-muted);
  opacity: 0.55;
  cursor: not-allowed;
}

input[type="number"]:focus,
select:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 0.22rem var(--ring-color);
}

input[type="number"]:disabled,
select:disabled {
  background: var(--color-surface-muted);
  color: var(--color-muted);
  border-color: var(--color-border);
  cursor: not-allowed;
}

input[type="checkbox"] {
  width: 1rem;
  height: 1rem;
}

.button {
  min-height: 2.65rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 0.62rem 0.95rem;
  font-weight: 700;
  cursor: pointer;
  transition:
    transform var(--transition-fast),
    background var(--transition-fast),
    border-color var(--transition-fast),
    color var(--transition-fast),
    opacity var(--transition-fast);
}

.button:hover:not(:disabled) {
  transform: translateY(-1px);
}

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

.button-primary {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-on-accent);
}

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

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

.button-ghost {
  background: var(--color-control);
  border-color: var(--color-border);
  color: var(--color-text);
}

.button-ghost.danger {
  background: var(--color-danger-soft);
  border-color: color-mix(in srgb, var(--color-danger) 28%, var(--color-border));
  color: var(--color-danger);
}

.table-wrap {
  overflow-x: auto;
}

.table-section-gap {
  margin-top: var(--space-4);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
}

.data-table th,
.data-table td {
  padding: var(--space-3);
  border-bottom: 1px solid var(--color-border);
  text-align: left;
}

.data-table th {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-muted);
}

.axis-name {
  font-weight: 700;
}

.axis-cards {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

.processed-stick-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-3);
}

.processed-stick-card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  box-shadow: var(--shadow-soft);
  padding: var(--space-3);
  display: grid;
  gap: var(--space-2);
}

.processed-stick-card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
}

.processed-stick-value {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--color-muted);
}

.processed-stick-box {
  position: relative;
  width: min(100%, 12.5rem);
  margin: 0 auto;
  aspect-ratio: 1 / 1;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background:
    linear-gradient(var(--color-border) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-border) 1px, transparent 1px),
    var(--color-surface-muted);
  background-size: 1.25rem 1.25rem;
  overflow: hidden;
}

.processed-stick-axis {
  position: absolute;
  background: var(--color-border-strong);
}

.processed-stick-axis-v {
  left: 50%;
  top: 0;
  width: 1px;
  height: 100%;
  transform: translateX(-0.5px);
}

.processed-stick-axis-h {
  left: 0;
  top: 50%;
  width: 100%;
  height: 1px;
  transform: translateY(-0.5px);
}

.processed-stick-dot {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 0.78rem;
  height: 0.78rem;
  border-radius: 999px;
  background: var(--color-accent);
  border: 1px solid var(--color-surface-strong);
  box-shadow: 0 0 0 0.22rem var(--ring-color);
  transform: translate(-50%, -50%);
}

.axis-card,
.mapping-group,
.live-group {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  box-shadow: var(--shadow-soft);
}

.axis-card {
  padding: var(--space-4);
}

.axis-card-head,
.mapping-row,
.live-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
}

.axis-card-head strong,
.mapping-label strong,
.live-label strong {
  font-size: 1rem;
}

.axis-meter {
  margin-top: var(--space-3);
  border-radius: 999px;
  overflow: hidden;
  background: var(--color-surface-muted);
  height: 0.62rem;
}

.axis-fill {
  height: 100%;
  border-radius: inherit;
  background: var(--color-accent);
  transition: width var(--transition-base);
}

.live-groups,
.mapping-groups {
  display: grid;
  gap: var(--space-4);
}

.panel-mapping .live-groups {
  margin-bottom: var(--space-4);
}

.mapping-group,
.live-group {
  padding: var(--space-4);
}

.status-led-settings-group {
  position: relative;
  margin-top: var(--space-5);
  padding-top: var(--space-5);
}

.status-led-settings-group::before {
  content: "";
  position: absolute;
  top: calc(var(--space-2) * -1);
  left: var(--space-4);
  right: var(--space-4);
  height: 1px;
  background: var(--color-border);
}

.mapping-group-head,
.live-group-head {
  display: flex;
  justify-content: space-between;
  gap: var(--space-3);
  align-items: baseline;
  margin-bottom: var(--space-3);
}

.mapping-list,
.live-list {
  display: grid;
  gap: var(--space-3);
}

.status-led-config-grid {
  display: grid;
  gap: var(--space-4);
}

.status-led-mode-panel {
  display: grid;
  gap: var(--space-3);
  padding: var(--space-3);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-surface-muted);
}

.status-led-mode-title {
  margin: 0;
  font-size: 0.98rem;
  font-weight: 700;
  color: var(--color-text);
}

.status-led-field-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(12rem, 1fr));
  gap: var(--space-3);
}

.status-led-field-grid .field-inline {
  width: 100%;
}

.mapping-row,
.live-row {
  padding: var(--space-3);
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  background: var(--color-surface-muted);
  transition: background var(--transition-fast), transform var(--transition-fast);
}

.mapping-row.is-active,
.live-row.is-active {
  background: var(--color-accent-soft);
  border-color: var(--color-accent);
  transform: none;
}

.mapping-label,
.live-label {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  min-width: 12rem;
}

.mapping-editor {
  flex: 1;
  display: grid;
  gap: var(--space-3);
}

.mapping-summary {
  font-size: 0.9rem;
  color: var(--color-muted);
}

.mapping-summary-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
}

.mapping-summary-actions {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
}

.mapping-clear {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-control);
  color: var(--color-muted);
  padding: 0.35rem 0.7rem;
  font-size: 0.8rem;
  font-weight: 700;
  cursor: pointer;
  transition:
    border-color var(--transition-fast),
    color var(--transition-fast),
    background var(--transition-fast),
    opacity var(--transition-fast);
}

.mapping-clear:hover:not(:disabled) {
  border-color: var(--color-accent);
  background: var(--color-accent-soft);
  color: var(--color-accent-strong);
}

.mapping-clear:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.mapping-keyboard-button {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-control);
  color: var(--color-muted);
  padding: 0.35rem 0.7rem;
  font-size: 0.8rem;
  font-weight: 700;
  cursor: pointer;
  transition:
    border-color var(--transition-fast),
    color var(--transition-fast),
    background var(--transition-fast),
    opacity var(--transition-fast);
}

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

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

.combo-group {
  display: grid;
  gap: var(--space-2);
}

.combo-group-title {
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-muted);
}

.combo-chip-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.combo-chip {
  position: relative;
  display: inline-flex;
}

.combo-chip input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.combo-chip span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.2rem;
  padding: 0.45rem 0.75rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-control);
  color: var(--color-muted);
  font-size: 0.84rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  transition:
    background var(--transition-fast),
    border-color var(--transition-fast),
    color var(--transition-fast),
    transform var(--transition-fast),
    box-shadow var(--transition-fast),
    opacity var(--transition-fast);
}

.combo-chip input:checked + span {
  background: var(--color-accent-soft);
  border-color: var(--color-accent);
  color: var(--color-accent-strong);
}

.combo-chip input:focus-visible + span {
  box-shadow: 0 0 0 0.22rem var(--ring-color);
}

.combo-chip input:disabled + span {
  opacity: 0.45;
}

.combo-chip:hover span {
  transform: translateY(-1px);
}

.mapping-groups-compact {
  gap: var(--space-3);
}

.mapping-groups-compact .mapping-group {
  padding: 1rem 1.1rem;
}

.mapping-groups-compact .mapping-group-head {
  margin-bottom: 0.8rem;
}

.mapping-groups-compact .mapping-list {
  gap: 0.65rem;
}

.mapping-groups-compact .mapping-row {
  align-items: flex-start;
  padding: 0.8rem 0.9rem;
  gap: 0.8rem;
}

.mapping-groups-compact .mapping-label {
  min-width: 10.5rem;
  gap: 0.7rem;
}

.mapping-groups-compact .mapping-label strong {
  font-size: 0.95rem;
}

.mapping-groups-compact .mapping-subtitle {
  font-size: 0.78rem;
}

.mapping-groups-compact .mapping-editor {
  min-width: 0;
  gap: 0.55rem;
}

.mapping-groups-compact .mapping-summary-row {
  flex-wrap: wrap;
  gap: 0.55rem;
}

.mapping-groups-compact .mapping-summary {
  font-size: 0.82rem;
  line-height: 1.45;
}

.mapping-groups-compact .mapping-clear {
  min-height: 1.9rem;
  padding: 0.24rem 0.62rem;
  font-size: 0.74rem;
}

.combo-chip-list-compact {
  gap: 0.35rem;
}

.combo-chip-compact span {
  min-height: 1.9rem;
  padding: 0.32rem 0.62rem;
  font-size: 0.76rem;
}

.indicator-dot {
  width: 0.7rem;
  height: 0.7rem;
  border-radius: 999px;
  background: var(--color-border-strong);
  box-shadow: none;
}

.indicator-dot.active {
  background: var(--color-accent);
  box-shadow: 0 0 0 0.28rem var(--ring-color);
}

.live-value {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  color: var(--color-muted);
}

.action-stack {
  flex-direction: column;
}

.footer-note {
  margin-top: var(--space-5);
  padding: var(--space-4) var(--space-5);
  line-height: 1.6;
  color: var(--color-muted);
}

.fade-in {
  animation: fade-up 420ms ease both;
}

@keyframes fade-up {
  from {
    opacity: 0;
    transform: translateY(0.75rem);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 72rem) {
  .panel-connection,
  .panel-actions,
  .panel-diagnostics,
  .panel-settings,
  .panel-live {
    grid-column: span 6;
  }
}

@media (max-width: 58rem) {
  .app-shell {
    width: min(100% - var(--space-4), 100%);
    padding-top: var(--space-4);
  }

  .app-topbar {
    position: relative;
    flex-wrap: wrap;
    align-items: flex-start;
  }

  .hero-copy {
    flex: 1 1 12rem;
  }

  .topbar-controls {
    margin-left: auto;
  }

  .hero,
  .dashboard {
    grid-template-columns: 1fr;
  }

  .panel,
  .panel-connection,
  .panel-actions,
  .panel-diagnostics,
  .panel-settings,
  .panel-live,
  .panel-mapping {
    grid-column: auto;
  }

  .status-strip,
  .dashboard-toolbar,
  .panel-heading,
  .mapping-row,
  .live-row,
  .axis-card-head {
    flex-direction: column;
    align-items: stretch;
  }

  .meta-grid,
  .diagnostics-grid,
  .axis-cards,
  .processed-stick-grid {
    grid-template-columns: 1fr;
  }

  .mapping-row select,
  .field-inline {
    width: 100%;
  }

  .jitter-boundary-control {
    grid-template-columns: minmax(0, 1fr);
  }

  .jitter-boundary-number {
    text-align: left;
  }

  .mapping-summary-row {
    align-items: stretch;
  }

  .compact-row {
    justify-content: stretch;
  }

  .toolbar-actions {
    justify-content: stretch;
  }

  .toolbar-actions .button,
  .compact-row .button,
  .action-stack .button {
    width: 100%;
  }
}

@media (max-width: 30rem) {
  .brand-logo {
    width: 2.8rem;
    height: 2.8rem;
  }

  .brand-title {
    font-size: 1.7rem;
  }

  .topbar-controls {
    width: 100%;
    justify-content: stretch;
  }

  .theme-switch {
    width: 100%;
    justify-content: space-between;
  }

  .theme-option {
    flex: 1 1 auto;
  }

  .theme-option span {
    width: 100%;
  }
}

.panel-live,
.panel-stick-calibration {
  grid-column: 1 / -1;
}

.panel-stick-curve,
.panel-stick-jitter {
  grid-column: 1 / -1;
}

.panel-diagnostics {
  grid-column: 1 / -1;
}

.field-row {
  flex-wrap: wrap;
  align-items: flex-start;
}

.field {
  min-width: 0;
}

.field-inline {
  flex: 1 1 12rem;
  width: auto;
}

.field-action-button {
  align-self: flex-end;
  min-width: 9.6rem;
}

.stick-blocks {
  margin-bottom: var(--space-4);
}

.center-tune-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-3);
}

.center-tune-card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  box-shadow: var(--shadow-soft);
  padding: var(--space-3);
  display: grid;
  gap: var(--space-3);
}

.center-tune-card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
}

.center-tune-toggle-chip span {
  min-height: 2.15rem;
  padding: 0.38rem 0.76rem;
  font-size: 0.76rem;
}

.center-tune-panel {
  display: grid;
  gap: var(--space-3);
}

.center-tune-zoom-row {
  display: flex;
  align-items: flex-end;
  gap: var(--space-3);
}

.center-tune-zoom-row .field-inline {
  flex: 1 1 auto;
}

.center-tune-zoom-row input[type="range"] {
  width: 100%;
  accent-color: var(--color-accent);
}

.center-tune-zoom-value {
  min-width: 3.2rem;
  text-align: right;
  font-family: var(--font-mono);
  color: var(--color-muted);
  font-size: 0.9rem;
  font-weight: 700;
}

.center-tune-pad {
  display: grid;
  grid-template-columns: 2.4rem minmax(0, 1fr) 2.4rem;
  grid-template-rows: 2.4rem minmax(10rem, 1fr) 2.4rem;
  gap: 0.4rem;
  align-items: center;
  justify-items: center;
}

.center-tune-canvas-wrap {
  grid-column: 2;
  grid-row: 2;
  width: min(100%, 17rem);
  aspect-ratio: 1 / 1;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background:
    linear-gradient(var(--color-border) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-border) 1px, transparent 1px),
    var(--color-surface-muted);
  background-size: 1rem 1rem;
  overflow: hidden;
}

.center-tune-canvas {
  width: 100%;
  height: 100%;
  display: block;
}

.center-tune-axis-line {
  stroke: var(--color-border-strong);
  stroke-width: 1.2;
}

.center-tune-radius-circle {
  fill: var(--color-info-soft);
  stroke: var(--color-accent);
  stroke-width: 1.8;
}

.center-tune-vector-line {
  stroke: var(--color-info);
  stroke-width: 1.4;
  stroke-dasharray: 4 3;
}

.center-tune-center-dot {
  fill: var(--color-accent);
}

.center-tune-raw-dot {
  fill: var(--color-danger);
}

.center-tune-axis-button {
  min-height: 2.2rem;
  min-width: 2.2rem;
  padding: 0;
  border-radius: var(--radius-sm);
  font-size: 1.1rem;
  line-height: 1;
  font-weight: 800;
}

.center-tune-axis-top {
  grid-column: 2;
  grid-row: 1;
}

.center-tune-axis-left {
  grid-column: 1;
  grid-row: 2;
}

.center-tune-axis-right {
  grid-column: 3;
  grid-row: 2;
}

.center-tune-axis-bottom {
  grid-column: 2;
  grid-row: 3;
}

.center-tune-meta {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--color-muted);
}

.center-tune-input-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-3);
}

.center-tune-input-row .field-inline {
  width: 100%;
}

.stick-curve-grid {
  display: grid;
  gap: var(--space-3);
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-bottom: var(--space-4);
}

.stick-curve-card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  box-shadow: var(--shadow-soft);
  padding: var(--space-3);
  display: grid;
  gap: var(--space-2);
}

.stick-curve-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
}

.stick-curve-actions {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
}

.stick-curve-head-main {
  display: grid;
  gap: 0.15rem;
}

.stick-curve-summary {
  font-size: 0.8rem;
  color: var(--color-muted);
  font-family: var(--font-mono);
}

.curve-add-point-button {
  min-height: 2.2rem;
  padding: 0.4rem 0.78rem;
  font-size: 0.78rem;
}

.curve-point-inputs {
  display: grid;
  gap: 0.45rem;
}

.curve-point-row {
  display: grid;
  grid-template-columns: 2.4rem minmax(0, 1fr) minmax(0, 1fr) minmax(0, 1fr) minmax(0, 1fr) auto;
  gap: 0.45rem;
  align-items: center;
}

.curve-point-label {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--color-muted);
}

.curve-point-field {
  display: grid;
  gap: 0.1rem;
  min-width: 0;
}

.curve-point-field span {
  font-size: 0.68rem;
  color: var(--color-muted);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.curve-point-field input[type="number"] {
  min-height: 2.1rem;
  padding: 0.42rem 0.52rem;
  font-size: 0.86rem;
}

.curve-point-field select {
  min-height: 2.1rem;
  padding: 0.42rem 0.52rem;
  font-size: 0.84rem;
  width: 100%;
}

.curve-point-remove {
  min-height: 2.1rem;
  padding: 0.35rem 0.68rem;
  font-size: 0.78rem;
}

.curve-side-toggle-row {
  align-items: center;
  justify-content: flex-start;
  margin-bottom: 0.1rem;
}

.rc-config-row {
  align-items: end;
}

.rc-config-row .field-inline {
  flex: 1 1 14rem;
}

.jitter-boundary-field {
  flex: 1.4 1 20rem;
}

.jitter-boundary-control {
  display: grid;
  grid-template-columns: minmax(9rem, 1fr) 5.2rem;
  align-items: center;
  gap: var(--space-3);
}

.jitter-boundary-control input[type="range"] {
  width: 100%;
  accent-color: var(--color-accent);
}

.jitter-boundary-number {
  text-align: right;
}

.jitter-main-group {
  display: grid;
  gap: var(--space-4);
}

.rc-segment-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-4);
  margin-top: 0;
}

.jitter-watchdog-group {
  margin-top: 0;
}

.rc-segment-group {
  padding: var(--space-3);
}

.rc-segment-head {
  align-items: center;
}

.rc-segment-rows {
  display: grid;
  gap: var(--space-2);
}

.rc-segment-empty {
  margin: 0;
  padding: var(--space-2) 0;
}

.rc-segment-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr)) auto;
  gap: var(--space-2);
  align-items: end;
}

.rc-segment-field {
  display: grid;
  gap: 0.2rem;
}

.rc-segment-field input[type="number"] {
  min-height: 2.15rem;
  padding: 0.42rem 0.54rem;
}

.rc-segment-remove {
  min-height: 2.15rem;
  padding-left: 0.8rem;
  padding-right: 0.8rem;
}

.stick-curve-svg {
  width: 100%;
  aspect-ratio: 1 / 1;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  background:
    linear-gradient(var(--color-border) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-border) 1px, transparent 1px),
    var(--color-surface-muted);
  background-size: 1.25rem 1.25rem;
  touch-action: none;
  cursor: crosshair;
}

.stick-curve-svg.is-disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.stick-curve-grid-line {
  stroke: var(--color-border-strong);
  stroke-width: 0.35;
}

.stick-curve-axis {
  stroke: var(--color-accent);
  stroke-width: 0.6;
}

.stick-curve-path {
  fill: none;
  stroke: var(--color-accent);
  stroke-width: 1.5;
}

.stick-curve-endpoint {
  fill: var(--color-info-soft);
  stroke: var(--color-accent);
  stroke-width: 0.45;
}

.stick-curve-handle {
  fill: var(--color-surface-strong);
  stroke: var(--color-accent-strong);
  stroke-width: 0.7;
  cursor: grab;
}

.stick-curve-handle.is-active {
  fill: var(--color-accent-soft);
  stroke-width: 0.95;
}

.stick-curve-handle-label {
  fill: var(--color-accent-strong);
  font-size: 3.2px;
  font-weight: 700;
  text-anchor: middle;
  pointer-events: none;
}

.mapping-table {
  min-width: 62rem;
}

.mapping-table th:not(:first-child),
.mapping-table td:not(:first-child) {
  text-align: center;
}

.mapping-table th:first-child,
.mapping-table td:first-child {
  position: sticky;
  left: 0;
  z-index: 1;
  min-width: 9rem;
  background: var(--color-surface);
}

.button-bits {
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  background: var(--color-code-bg);
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--color-code-text);
  overflow-wrap: anywhere;
}

.log {
  min-height: 18rem;
  max-height: 28rem;
  overflow: auto;
  padding: var(--space-4);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  background: var(--color-code-bg);
  color: var(--color-code-text);
  font-family: var(--font-mono);
  font-size: 0.9rem;
  line-height: 1.65;
  white-space: pre-wrap;
  word-break: break-word;
}

.hidden {
  display: none !important;
}

.capture-modal {
  position: fixed;
  inset: 0;
  z-index: 40;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-5);
  background: var(--color-overlay);
  backdrop-filter: blur(4px);
}

.capture-modal-card {
  width: min(64rem, calc(100% - var(--space-5)));
  max-height: min(88vh, 44rem);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  box-shadow: var(--shadow-panel);
  padding: var(--space-5);
  display: grid;
  gap: var(--space-3);
}

.capture-modal-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(18rem, 0.78fr);
  gap: var(--space-5);
  min-height: 0;
}

.capture-modal-layout.is-dual {
  grid-template-columns: minmax(0, 0.68fr) minmax(0, 1.32fr);
}

.capture-modal-main {
  display: grid;
  align-content: start;
  gap: var(--space-3);
  min-width: 0;
}

.capture-modal-card h3 {
  font-size: 1.45rem;
}

.capture-missing-panels {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-3);
  min-width: 0;
  min-height: 0;
}

.capture-missing-panels.is-dual {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.capture-missing-panel {
  display: grid;
  grid-template-rows: auto auto auto auto minmax(0, 1fr);
  gap: var(--space-3);
  min-width: 0;
  min-height: 17rem;
  padding: var(--space-4);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface-muted);
}

.capture-missing-panel.is-complete {
  border-color: var(--color-success);
  background: var(--color-success-soft);
}

.capture-missing-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-3);
}

.capture-missing-head h4 {
  margin: 0.1rem 0 0;
  font-size: 1.02rem;
}

.capture-ring-shell {
  display: grid;
  place-items: center;
  min-height: 12rem;
}

.capture-ring {
  width: min(100%, 12.25rem);
  aspect-ratio: 1;
  border-radius: 50%;
  background: conic-gradient(#d64d4d 0deg 360deg);
  position: relative;
  box-shadow: inset 0 0 0 1px var(--color-border);
}

.capture-ring-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  border-radius: 50%;
  pointer-events: none;
  z-index: 0;
}

.capture-ring::before {
  content: "";
  position: absolute;
  inset: 19%;
  border-radius: 50%;
  background: var(--color-surface);
  box-shadow: inset 0 0 0 1px var(--color-border);
  z-index: 1;
}

.capture-ring-angle {
  position: absolute;
  z-index: 2;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--color-muted);
  line-height: 1;
  pointer-events: none;
}

.capture-ring-angle-top {
  top: -0.85rem;
  left: 50%;
  transform: translateX(-50%);
}

.capture-ring-angle-right {
  right: -1.45rem;
  top: 50%;
  transform: translateY(-50%);
}

.capture-ring-angle-bottom {
  bottom: -0.85rem;
  left: 50%;
  transform: translateX(-50%);
}

.capture-ring-angle-left {
  left: -1.8rem;
  top: 50%;
  transform: translateY(-50%);
}

.capture-missing-summary {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--color-accent-strong);
  overflow-wrap: anywhere;
}

.capture-axis-block {
  display: grid;
  gap: var(--space-2);
}

.capture-missing-label {
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0;
  color: var(--color-muted);
}

.capture-axis-row,
.capture-missing-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  min-width: 0;
}

.capture-missing-list {
  align-content: start;
  overflow: auto;
  padding-right: 0.1rem;
}

.capture-axis-chip,
.capture-missing-chip,
.capture-missing-more,
.capture-missing-empty {
  display: inline-flex;
  align-items: center;
  min-height: 1.75rem;
  max-width: 100%;
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  line-height: 1.2;
  overflow-wrap: anywhere;
}

.capture-axis-chip {
  justify-content: center;
  min-width: 3.2rem;
  padding: 0.25rem 0.55rem;
  border: 1px solid color-mix(in srgb, var(--color-danger) 28%, var(--color-border));
  background: var(--color-danger-soft);
  color: var(--color-danger);
  font-weight: 700;
}

.capture-axis-chip.is-hit {
  border-color: color-mix(in srgb, var(--color-success) 30%, var(--color-border));
  background: var(--color-success-soft);
  color: var(--color-success);
}

.capture-missing-chip,
.capture-missing-more,
.capture-missing-empty {
  padding: 0.3rem 0.55rem;
}

.capture-missing-chip {
  border: 1px solid color-mix(in srgb, var(--color-warning) 30%, var(--color-border));
  background: var(--color-warning-soft);
  color: var(--color-warning);
}

.capture-missing-more {
  border: 1px dashed var(--color-border-strong);
  background: var(--color-surface-muted);
  color: var(--color-muted);
}

.capture-missing-empty {
  border: 1px solid color-mix(in srgb, var(--color-success) 30%, var(--color-border));
  background: var(--color-success-soft);
  color: var(--color-success);
  font-weight: 700;
}

.sample-time-modal-card {
  width: min(58rem, calc(100% - var(--space-5)));
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  box-shadow: var(--shadow-panel);
  padding: var(--space-5);
  display: grid;
  gap: var(--space-3);
}

.keyboard-picker-modal-card {
  width: min(76rem, calc(100% - var(--space-5)));
  max-height: min(88vh, 56rem);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  box-shadow: var(--shadow-panel);
  padding: var(--space-5);
  display: grid;
  gap: var(--space-3);
}

.center-guide-modal-card {
  width: min(31rem, calc(100% - var(--space-5)));
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  box-shadow: var(--shadow-panel);
  padding: var(--space-5);
  display: grid;
  gap: var(--space-4);
}

.center-guide-head h3 {
  margin-top: 0.15rem;
  font-size: 1.35rem;
}

.center-guide-body {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-4);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface-muted);
}

.center-guide-target {
  position: relative;
  width: 4.25rem;
  aspect-ratio: 1;
  border-radius: 50%;
  border: 1px solid var(--color-border-strong);
  background:
    linear-gradient(var(--color-border) 1px, transparent 1px) 50% 50% / 100% 50% no-repeat,
    linear-gradient(90deg, var(--color-border) 1px, transparent 1px) 50% 50% / 50% 100% no-repeat,
    var(--color-surface);
  box-shadow: inset 0 0 0 0.55rem var(--color-accent-soft);
}

.center-guide-target span {
  position: absolute;
  inset: calc(50% - 0.42rem);
  border-radius: 50%;
  background: var(--color-accent);
  box-shadow: 0 0 0 0.35rem color-mix(in srgb, var(--color-accent) 18%, transparent);
  transform: translate(0, 0);
  transition: transform var(--transition-base);
}

.center-guide-target.is-up span {
  transform: translateY(-1.08rem);
}

.center-guide-target.is-down span {
  transform: translateY(1.08rem);
}

.center-guide-target.is-left span {
  transform: translateX(-1.08rem);
}

.center-guide-target.is-right span {
  transform: translateX(1.08rem);
}

.center-guide-hint {
  margin: 0 0 var(--space-2);
  color: var(--color-text);
  line-height: 1.65;
}

.center-guide-actions {
  display: flex;
  justify-content: flex-end;
  gap: var(--space-2);
}

.keyboard-picker-grid {
  display: grid;
  gap: 0.45rem;
  overflow: auto;
  padding: 0.35rem 0.1rem 0.35rem 0;
}

.keyboard-picker-row {
  display: flex;
  flex-wrap: nowrap;
  gap: 0.35rem;
}

.keyboard-picker-key {
  flex: var(--key-grow, 1) 1 0;
  min-width: 0;
  min-height: 2.25rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-control);
  color: var(--color-muted);
  font-weight: 700;
  font-size: 0.74rem;
  padding: 0.28rem 0.35rem;
  cursor: pointer;
  transition:
    border-color var(--transition-fast),
    color var(--transition-fast),
    background var(--transition-fast),
    transform var(--transition-fast),
    opacity var(--transition-fast);
}

.keyboard-picker-key:hover:not(:disabled) {
  transform: translateY(-1px);
}

.keyboard-picker-key.is-active {
  border-color: var(--color-accent);
  background: var(--color-accent-soft);
  color: var(--color-accent-strong);
}

.keyboard-picker-key:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.keyboard-picker-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
}

.keyboard-picker-actions-right {
  display: inline-flex;
  gap: var(--space-2);
}

.reboot-mode-modal-card {
  width: min(30rem, calc(100% - var(--space-5)));
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  box-shadow: var(--shadow-panel);
  padding: var(--space-5);
  display: grid;
  gap: var(--space-3);
}

.reboot-mode-modal-card h3 {
  font-size: 1.3rem;
}

.reboot-mode-options {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-3);
}

.reboot-mode-footer {
  display: flex;
  justify-content: flex-end;
}

.sample-time-modal-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-3);
}

.sample-time-modal-actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.sample-time-modal-head h3 {
  font-size: 1.35rem;
}

.sample-time-limits-note {
  margin: var(--space-2) 0 0;
}

.sample-time-modal-close {
  min-height: 2.4rem;
}

.capture-progress-track {
  height: 0.9rem;
  border-radius: 999px;
  overflow: hidden;
  background: var(--color-accent-soft);
}

.capture-progress-fill {
  height: 100%;
  border-radius: inherit;
  background: var(--color-accent);
  transition: width var(--transition-fast);
}

.capture-modal-meta {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--color-accent-strong);
}

@media (max-width: 36rem) {
  .reboot-mode-options {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 72rem) {
  .panel-live,
  .panel-stick-calibration,
  .panel-stick-curve,
  .panel-stick-jitter {
    grid-column: 1 / -1;
  }

  .panel-diagnostics,
  .panel-mapping {
    grid-column: 1 / -1;
  }
}

@media (max-width: 58rem) {
  .capture-modal {
    padding: var(--space-3);
  }

  .capture-modal-card {
    width: min(100%, calc(100vw - var(--space-3) * 2));
    max-height: calc(100vh - var(--space-3) * 2);
    overflow: auto;
  }

  .capture-modal-layout {
    grid-template-columns: 1fr;
  }

  .capture-modal-layout.is-dual {
    grid-template-columns: 1fr;
  }

  .capture-missing-panels.is-dual {
    grid-template-columns: 1fr;
  }

  .capture-missing-panel {
    min-height: 13rem;
  }

  .compact-row,
  .field-row {
    flex-direction: column;
  }

  .field-inline {
    width: 100%;
  }

  .stick-curve-grid {
    grid-template-columns: 1fr;
  }

  .center-tune-grid {
    grid-template-columns: 1fr;
  }

  .center-tune-input-row {
    grid-template-columns: 1fr;
  }

  .curve-point-row {
    grid-template-columns: 2.4rem minmax(0, 1fr) minmax(0, 1fr);
  }

  .curve-point-remove {
    justify-self: end;
  }

  .rc-segment-grid {
    grid-template-columns: 1fr;
  }

  .rc-segment-row {
    grid-template-columns: 1fr;
  }

  .keyboard-picker-modal-card {
    width: min(100% - var(--space-4), 100%);
    padding: var(--space-4);
  }

  .center-guide-modal-card {
    width: min(100% - var(--space-4), 100%);
    padding: var(--space-4);
  }

  .center-guide-body {
    grid-template-columns: 1fr;
    justify-items: center;
    text-align: center;
  }

  .keyboard-picker-row {
    flex-wrap: wrap;
  }

  .keyboard-picker-key {
    flex: 1 1 4.4rem;
  }

  .keyboard-picker-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .keyboard-picker-actions-right {
    justify-content: flex-end;
    flex-wrap: wrap;
  }
}

.toggle-row {
  align-items: center;
}

.toggle-chip {
  position: relative;
  display: inline-flex;
}

.toggle-chip input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.toggle-chip span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.4rem;
  padding: 0.5rem 0.9rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-control);
  color: var(--color-muted);
  font-size: 0.84rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  transition:
    background var(--transition-fast),
    border-color var(--transition-fast),
    color var(--transition-fast),
    transform var(--transition-fast),
    box-shadow var(--transition-fast);
}

.toggle-chip input:checked + span {
  background: var(--color-accent-soft);
  border-color: var(--color-accent);
  color: var(--color-accent-strong);
}

.toggle-chip input:focus-visible + span {
  box-shadow: 0 0 0 0.22rem var(--ring-color);
}

.toggle-chip:hover span {
  transform: translateY(-1px);
}

/* Traditional keyboard layout for the mapping picker. */
.keyboard-picker-modal-card {
  width: min(100rem, calc(100% - var(--space-5)));
}

.keyboard-picker-grid {
  --keyboard-unit: 2.7rem;
  --keyboard-gap: 0.42rem;
  grid-template-columns:
    repeat(16, var(--keyboard-unit))
    1rem
    repeat(3, var(--keyboard-unit))
    1.2rem
    repeat(4, var(--keyboard-unit));
  grid-auto-rows: var(--keyboard-unit);
  grid-auto-flow: row;
  gap: var(--keyboard-gap);
  align-items: stretch;
  width: max-content;
  min-width: 0;
  max-width: 100%;
  padding: 0.5rem 0.2rem 0.7rem 0;
}

.keyboard-picker-row {
  display: contents;
}

.keyboard-picker-key {
  grid-column: var(--keyboard-col) / span var(--keyboard-span, 1);
  grid-row: var(--keyboard-row) / span var(--keyboard-row-span, 1);
  height: 100%;
  min-width: 0;
  min-height: 0;
  aspect-ratio: auto;
  justify-content: center;
  align-items: center;
  line-height: 1.1;
  box-shadow: inset 0 -1px 0 color-mix(in srgb, var(--color-border) 76%, transparent);
}

.keyboard-picker-key[data-keyboard-key-id="57"],
.keyboard-picker-key[data-keyboard-key-id="90"] {
  white-space: normal;
  word-break: keep-all;
}

.keyboard-picker-key[data-keyboard-key-id="33"],
.keyboard-picker-key[data-keyboard-key-id="34"],
.keyboard-picker-key[data-keyboard-key-id="35"],
.keyboard-picker-key[data-keyboard-key-id="36"],
.keyboard-picker-key[data-keyboard-key-id="54"],
.keyboard-picker-key[data-keyboard-key-id="55"],
.keyboard-picker-key[data-keyboard-key-id="56"],
.keyboard-picker-key[data-keyboard-key-id="57"],
.keyboard-picker-key[data-keyboard-key-id="71"],
.keyboard-picker-key[data-keyboard-key-id="72"],
.keyboard-picker-key[data-keyboard-key-id="73"],
.keyboard-picker-key[data-keyboard-key-id="87"],
.keyboard-picker-key[data-keyboard-key-id="88"],
.keyboard-picker-key[data-keyboard-key-id="89"],
.keyboard-picker-key[data-keyboard-key-id="90"],
.keyboard-picker-key[data-keyboard-key-id="102"],
.keyboard-picker-key[data-keyboard-key-id="103"] {
  font-size: 0.68rem;
}

.keyboard-picker-key[data-keyboard-key-id="0"] { --keyboard-col: 1; --keyboard-row: 1; }
.keyboard-picker-key[data-keyboard-key-id="1"] { --keyboard-col: 3; --keyboard-row: 1; }
.keyboard-picker-key[data-keyboard-key-id="2"] { --keyboard-col: 4; --keyboard-row: 1; }
.keyboard-picker-key[data-keyboard-key-id="3"] { --keyboard-col: 5; --keyboard-row: 1; }
.keyboard-picker-key[data-keyboard-key-id="4"] { --keyboard-col: 6; --keyboard-row: 1; }
.keyboard-picker-key[data-keyboard-key-id="5"] { --keyboard-col: 8; --keyboard-row: 1; }
.keyboard-picker-key[data-keyboard-key-id="6"] { --keyboard-col: 9; --keyboard-row: 1; }
.keyboard-picker-key[data-keyboard-key-id="7"] { --keyboard-col: 10; --keyboard-row: 1; }
.keyboard-picker-key[data-keyboard-key-id="8"] { --keyboard-col: 11; --keyboard-row: 1; }
.keyboard-picker-key[data-keyboard-key-id="9"] { --keyboard-col: 13; --keyboard-row: 1; }
.keyboard-picker-key[data-keyboard-key-id="10"] { --keyboard-col: 14; --keyboard-row: 1; }
.keyboard-picker-key[data-keyboard-key-id="11"] { --keyboard-col: 15; --keyboard-row: 1; }
.keyboard-picker-key[data-keyboard-key-id="12"] { --keyboard-col: 16; --keyboard-row: 1; }
.keyboard-picker-key[data-keyboard-key-id="13"] { --keyboard-col: 18; --keyboard-row: 1; }
.keyboard-picker-key[data-keyboard-key-id="14"] { --keyboard-col: 19; --keyboard-row: 1; }
.keyboard-picker-key[data-keyboard-key-id="15"] { --keyboard-col: 20; --keyboard-row: 1; }

.keyboard-picker-key[data-keyboard-key-id="16"] { --keyboard-col: 1; --keyboard-row: 2; }
.keyboard-picker-key[data-keyboard-key-id="17"] { --keyboard-col: 2; --keyboard-row: 2; }
.keyboard-picker-key[data-keyboard-key-id="18"] { --keyboard-col: 3; --keyboard-row: 2; }
.keyboard-picker-key[data-keyboard-key-id="19"] { --keyboard-col: 4; --keyboard-row: 2; }
.keyboard-picker-key[data-keyboard-key-id="20"] { --keyboard-col: 5; --keyboard-row: 2; }
.keyboard-picker-key[data-keyboard-key-id="21"] { --keyboard-col: 6; --keyboard-row: 2; }
.keyboard-picker-key[data-keyboard-key-id="22"] { --keyboard-col: 7; --keyboard-row: 2; }
.keyboard-picker-key[data-keyboard-key-id="23"] { --keyboard-col: 8; --keyboard-row: 2; }
.keyboard-picker-key[data-keyboard-key-id="24"] { --keyboard-col: 9; --keyboard-row: 2; }
.keyboard-picker-key[data-keyboard-key-id="25"] { --keyboard-col: 10; --keyboard-row: 2; }
.keyboard-picker-key[data-keyboard-key-id="26"] { --keyboard-col: 11; --keyboard-row: 2; }
.keyboard-picker-key[data-keyboard-key-id="27"] { --keyboard-col: 12; --keyboard-row: 2; }
.keyboard-picker-key[data-keyboard-key-id="28"] { --keyboard-col: 13; --keyboard-row: 2; }
.keyboard-picker-key[data-keyboard-key-id="29"] { --keyboard-col: 14; --keyboard-row: 2; --keyboard-span: 3; }
.keyboard-picker-key[data-keyboard-key-id="30"] { --keyboard-col: 18; --keyboard-row: 2; }
.keyboard-picker-key[data-keyboard-key-id="31"] { --keyboard-col: 19; --keyboard-row: 2; }
.keyboard-picker-key[data-keyboard-key-id="32"] { --keyboard-col: 20; --keyboard-row: 2; }
.keyboard-picker-key[data-keyboard-key-id="33"] { --keyboard-col: 22; --keyboard-row: 2; }
.keyboard-picker-key[data-keyboard-key-id="34"] { --keyboard-col: 23; --keyboard-row: 2; }
.keyboard-picker-key[data-keyboard-key-id="35"] { --keyboard-col: 24; --keyboard-row: 2; }
.keyboard-picker-key[data-keyboard-key-id="36"] { --keyboard-col: 25; --keyboard-row: 2; }

.keyboard-picker-key[data-keyboard-key-id="37"] { --keyboard-col: 1; --keyboard-row: 3; --keyboard-span: 2; }
.keyboard-picker-key[data-keyboard-key-id="38"] { --keyboard-col: 3; --keyboard-row: 3; }
.keyboard-picker-key[data-keyboard-key-id="39"] { --keyboard-col: 4; --keyboard-row: 3; }
.keyboard-picker-key[data-keyboard-key-id="40"] { --keyboard-col: 5; --keyboard-row: 3; }
.keyboard-picker-key[data-keyboard-key-id="41"] { --keyboard-col: 6; --keyboard-row: 3; }
.keyboard-picker-key[data-keyboard-key-id="42"] { --keyboard-col: 7; --keyboard-row: 3; }
.keyboard-picker-key[data-keyboard-key-id="43"] { --keyboard-col: 8; --keyboard-row: 3; }
.keyboard-picker-key[data-keyboard-key-id="44"] { --keyboard-col: 9; --keyboard-row: 3; }
.keyboard-picker-key[data-keyboard-key-id="45"] { --keyboard-col: 10; --keyboard-row: 3; }
.keyboard-picker-key[data-keyboard-key-id="46"] { --keyboard-col: 11; --keyboard-row: 3; }
.keyboard-picker-key[data-keyboard-key-id="47"] { --keyboard-col: 12; --keyboard-row: 3; }
.keyboard-picker-key[data-keyboard-key-id="48"] { --keyboard-col: 13; --keyboard-row: 3; }
.keyboard-picker-key[data-keyboard-key-id="49"] { --keyboard-col: 14; --keyboard-row: 3; }
.keyboard-picker-key[data-keyboard-key-id="50"] { --keyboard-col: 15; --keyboard-row: 3; --keyboard-span: 2; }
.keyboard-picker-key[data-keyboard-key-id="51"] { --keyboard-col: 18; --keyboard-row: 3; }
.keyboard-picker-key[data-keyboard-key-id="52"] { --keyboard-col: 19; --keyboard-row: 3; }
.keyboard-picker-key[data-keyboard-key-id="53"] { --keyboard-col: 20; --keyboard-row: 3; }
.keyboard-picker-key[data-keyboard-key-id="54"] { --keyboard-col: 22; --keyboard-row: 3; }
.keyboard-picker-key[data-keyboard-key-id="55"] { --keyboard-col: 23; --keyboard-row: 3; }
.keyboard-picker-key[data-keyboard-key-id="56"] { --keyboard-col: 24; --keyboard-row: 3; }
.keyboard-picker-key[data-keyboard-key-id="57"] { --keyboard-col: 25; --keyboard-row: 3; --keyboard-row-span: 2; }

.keyboard-picker-key[data-keyboard-key-id="58"] { --keyboard-col: 1; --keyboard-row: 4; --keyboard-span: 2; }
.keyboard-picker-key[data-keyboard-key-id="59"] { --keyboard-col: 3; --keyboard-row: 4; }
.keyboard-picker-key[data-keyboard-key-id="60"] { --keyboard-col: 4; --keyboard-row: 4; }
.keyboard-picker-key[data-keyboard-key-id="61"] { --keyboard-col: 5; --keyboard-row: 4; }
.keyboard-picker-key[data-keyboard-key-id="62"] { --keyboard-col: 6; --keyboard-row: 4; }
.keyboard-picker-key[data-keyboard-key-id="63"] { --keyboard-col: 7; --keyboard-row: 4; }
.keyboard-picker-key[data-keyboard-key-id="64"] { --keyboard-col: 8; --keyboard-row: 4; }
.keyboard-picker-key[data-keyboard-key-id="65"] { --keyboard-col: 9; --keyboard-row: 4; }
.keyboard-picker-key[data-keyboard-key-id="66"] { --keyboard-col: 10; --keyboard-row: 4; }
.keyboard-picker-key[data-keyboard-key-id="67"] { --keyboard-col: 11; --keyboard-row: 4; }
.keyboard-picker-key[data-keyboard-key-id="68"] { --keyboard-col: 12; --keyboard-row: 4; }
.keyboard-picker-key[data-keyboard-key-id="69"] { --keyboard-col: 13; --keyboard-row: 4; }
.keyboard-picker-key[data-keyboard-key-id="70"] { --keyboard-col: 14; --keyboard-row: 4; --keyboard-span: 3; }
.keyboard-picker-key[data-keyboard-key-id="71"] { --keyboard-col: 22; --keyboard-row: 4; }
.keyboard-picker-key[data-keyboard-key-id="72"] { --keyboard-col: 23; --keyboard-row: 4; }
.keyboard-picker-key[data-keyboard-key-id="73"] { --keyboard-col: 24; --keyboard-row: 4; }

.keyboard-picker-key[data-keyboard-key-id="74"] { --keyboard-col: 1; --keyboard-row: 5; --keyboard-span: 3; }
.keyboard-picker-key[data-keyboard-key-id="75"] { --keyboard-col: 4; --keyboard-row: 5; }
.keyboard-picker-key[data-keyboard-key-id="76"] { --keyboard-col: 5; --keyboard-row: 5; }
.keyboard-picker-key[data-keyboard-key-id="77"] { --keyboard-col: 6; --keyboard-row: 5; }
.keyboard-picker-key[data-keyboard-key-id="78"] { --keyboard-col: 7; --keyboard-row: 5; }
.keyboard-picker-key[data-keyboard-key-id="79"] { --keyboard-col: 8; --keyboard-row: 5; }
.keyboard-picker-key[data-keyboard-key-id="80"] { --keyboard-col: 9; --keyboard-row: 5; }
.keyboard-picker-key[data-keyboard-key-id="81"] { --keyboard-col: 10; --keyboard-row: 5; }
.keyboard-picker-key[data-keyboard-key-id="82"] { --keyboard-col: 11; --keyboard-row: 5; }
.keyboard-picker-key[data-keyboard-key-id="83"] { --keyboard-col: 12; --keyboard-row: 5; }
.keyboard-picker-key[data-keyboard-key-id="84"] { --keyboard-col: 13; --keyboard-row: 5; }
.keyboard-picker-key[data-keyboard-key-id="85"] { --keyboard-col: 14; --keyboard-row: 5; --keyboard-span: 3; }
.keyboard-picker-key[data-keyboard-key-id="86"] { --keyboard-col: 19; --keyboard-row: 5; }
.keyboard-picker-key[data-keyboard-key-id="87"] { --keyboard-col: 22; --keyboard-row: 5; }
.keyboard-picker-key[data-keyboard-key-id="88"] { --keyboard-col: 23; --keyboard-row: 5; }
.keyboard-picker-key[data-keyboard-key-id="89"] { --keyboard-col: 24; --keyboard-row: 5; }
.keyboard-picker-key[data-keyboard-key-id="90"] { --keyboard-col: 25; --keyboard-row: 5; --keyboard-row-span: 2; }

.keyboard-picker-key[data-keyboard-key-id="91"] { --keyboard-col: 1; --keyboard-row: 6; }
.keyboard-picker-key[data-keyboard-key-id="92"] { --keyboard-col: 2; --keyboard-row: 6; }
.keyboard-picker-key[data-keyboard-key-id="93"] { --keyboard-col: 3; --keyboard-row: 6; }
.keyboard-picker-key[data-keyboard-key-id="94"] { --keyboard-col: 4; --keyboard-row: 6; --keyboard-span: 7; }
.keyboard-picker-key[data-keyboard-key-id="95"] { --keyboard-col: 11; --keyboard-row: 6; }
.keyboard-picker-key[data-keyboard-key-id="96"] { --keyboard-col: 12; --keyboard-row: 6; }
.keyboard-picker-key[data-keyboard-key-id="97"] { --keyboard-col: 13; --keyboard-row: 6; }
.keyboard-picker-key[data-keyboard-key-id="98"] { --keyboard-col: 14; --keyboard-row: 6; --keyboard-span: 3; }
.keyboard-picker-key[data-keyboard-key-id="99"] { --keyboard-col: 18; --keyboard-row: 6; }
.keyboard-picker-key[data-keyboard-key-id="100"] { --keyboard-col: 19; --keyboard-row: 6; }
.keyboard-picker-key[data-keyboard-key-id="101"] { --keyboard-col: 20; --keyboard-row: 6; }
.keyboard-picker-key[data-keyboard-key-id="102"] { --keyboard-col: 22; --keyboard-row: 6; --keyboard-span: 2; }
.keyboard-picker-key[data-keyboard-key-id="103"] { --keyboard-col: 24; --keyboard-row: 6; }

@media (max-width: 58rem) {
  .keyboard-picker-grid {
    max-width: none;
    grid-template-columns:
      repeat(16, var(--keyboard-unit))
      1rem
      repeat(3, var(--keyboard-unit))
      1.2rem
      repeat(4, var(--keyboard-unit));
  }

  .keyboard-picker-row {
    display: contents;
  }

  .keyboard-picker-key {
    flex: initial;
  }
}