/*
 * Grid Roadster — interface styles.
 * Swiss / International Typographic Style: a strict 12-column grid, an 8 px
 * spacing unit, one sans-serif family in a limited set of sizes, flush-left
 * text, hairline rules, neutral surfaces and a single red accent.
 */

@font-face {
  font-family: 'Inter';
  src: url('fonts/InterVariable.woff2') format('woff2');
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}

:root {
  /* Colour */
  --ink: #0e0e0f;
  --charcoal: #18191b;
  --graphite: #26272a;
  --steel: #3a3b3f;
  --grey: #8d8a83;
  --mist: #b9b6ae;
  --paper: #f2efe8;
  --red: #e0251b;
  --red-strong: #c11d14;
  --rule: rgba(242, 239, 232, 0.16);
  --rule-strong: rgba(242, 239, 232, 0.32);
  --surface: rgba(24, 25, 27, 0.9);

  /* Type scale (px): 11 · 13 · 16 · 20 · 28 · 48 · 72 */
  --t-xs: 0.6875rem;
  --t-sm: 0.8125rem;
  --t-md: 1rem;
  --t-lg: 1.25rem;
  --t-xl: 1.75rem;
  --t-2xl: 3rem;
  --t-3xl: 4.5rem;

  /* Grid & spacing: 8 px unit */
  --u: 8px;
  --margin: 24px;
  --gutter: 16px;
  --topbar-h: 64px;
  --footer-h: 32px;
  --panel-w: 336px;

  --focus: 0 0 0 2px var(--ink), 0 0 0 4px var(--paper);
  --ease: cubic-bezier(0.2, 0.7, 0.2, 1);
  --dur: 180ms;

  color-scheme: dark;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  height: 100%;
  background: var(--ink);
  color: var(--paper);
  font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  font-feature-settings: 'ss01', 'cv11';
  overflow: hidden;
  overscroll-behavior: none;
}

body {
  -webkit-tap-highlight-color: transparent;
}

p,
h1,
h2,
h3,
dl,
dd,
ul {
  margin: 0;
}

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

kbd {
  display: inline-block;
  min-width: 1.6em;
  padding: 0 0.35em;
  border: 1px solid var(--rule-strong);
  font: 600 var(--t-xs) / 1.6 'Inter', system-ui, sans-serif;
  text-align: center;
  color: var(--paper);
  background: var(--graphite);
}

code {
  font-size: var(--t-sm);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

:focus {
  outline: none;
}
:focus-visible {
  outline: none;
  box-shadow: var(--focus);
}

.skip-link {
  position: fixed;
  left: var(--margin);
  top: -100px;
  z-index: 100;
  padding: var(--u) calc(var(--u) * 2);
  background: var(--paper);
  color: var(--ink);
  font-weight: 600;
}
.skip-link:focus {
  top: var(--u);
}

/* ---------- Typographic primitives ---------- */

.eyebrow {
  font-size: var(--t-xs);
  font-weight: 600;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--grey);
  line-height: 16px;
}

.display {
  font-size: var(--t-3xl);
  font-weight: 800;
  line-height: 0.92;
  letter-spacing: -0.035em;
}

.lede {
  font-size: var(--t-md);
  color: var(--mist);
  max-width: 34ch;
}

.help {
  font-size: var(--t-sm);
  color: var(--mist);
  line-height: 1.45;
}

/* ---------- App frame ---------- */

.app {
  position: fixed;
  inset: 0;
}

.scene {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  touch-action: none;
  cursor: grab;
}
.mode-drive .scene {
  cursor: default;
}

.grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  column-gap: var(--gutter);
  padding: 0 var(--margin);
}

/* ---------- Top bar ---------- */

.topbar {
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: var(--topbar-h);
  align-items: center;
  background: linear-gradient(var(--ink), rgba(14, 14, 15, 0.86));
  border-bottom: 1px solid var(--rule);
  z-index: 10;
  padding-top: env(safe-area-inset-top);
}

.brand {
  grid-column: 1 / span 3;
  display: flex;
  align-items: center;
  gap: calc(var(--u) * 1.5);
  min-width: 0;
}
.brand__index {
  font-size: var(--t-xs);
  font-weight: 700;
  width: 32px;
  height: 32px;
  display: grid;
  place-items: center;
  background: var(--red);
  color: #fff;
  flex: none;
}
.brand__name {
  font-weight: 700;
  font-size: var(--t-md);
  letter-spacing: -0.01em;
  line-height: 20px;
  white-space: nowrap;
}
.brand__meta {
  font-size: var(--t-xs);
  color: var(--grey);
  line-height: 16px;
  white-space: nowrap;
}

.modes {
  grid-column: 4 / span 3;
  display: flex;
}

.seg {
  height: 40px;
  padding: 0 calc(var(--u) * 2);
  border: 1px solid var(--rule-strong);
  background: transparent;
  font-size: var(--t-sm);
  font-weight: 600;
  letter-spacing: 0.02em;
  cursor: pointer;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
}
.seg + .seg {
  border-left: none;
}
.seg[aria-pressed='true'] {
  background: var(--paper);
  color: var(--ink);
}
.seg:hover:not([aria-pressed='true']) {
  background: var(--graphite);
}

.actions {
  grid-column: 7 / span 6;
  display: flex;
  justify-content: flex-end;
  gap: 2px;
}

.icon-btn {
  height: 40px;
  min-width: 40px;
  display: inline-flex;
  align-items: center;
  gap: var(--u);
  padding: 0 12px;
  border: none;
  background: transparent;
  font-size: var(--t-sm);
  font-weight: 500;
  cursor: pointer;
  white-space: nowrap;
  transition: background var(--dur) var(--ease);
}
.icon-btn svg {
  width: 20px;
  height: 20px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.75;
  stroke-linecap: square;
  flex: none;
}
.icon-btn:hover {
  background: var(--graphite);
}
.icon-btn[aria-pressed='true'],
.icon-btn[aria-expanded='true'] {
  background: var(--graphite);
  box-shadow: inset 0 -2px 0 var(--red);
}
.icon-btn--bare {
  padding: 0;
  width: 40px;
  justify-content: center;
}

.mode-showroom .drive-only,
.mode-drive .showroom-only,
.mode-stunt .drive-only,
.mode-stunt .showroom-only,
body:not(.mode-stunt) .stunt-only {
  display: none !important;
}

/* ---------- Buttons ---------- */

.btn {
  min-height: 44px;
  padding: 0 calc(var(--u) * 2.5);
  border: 1px solid var(--rule-strong);
  background: transparent;
  font-size: var(--t-sm);
  font-weight: 600;
  letter-spacing: 0.02em;
  text-align: left;
  cursor: pointer;
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.btn:hover {
  background: var(--graphite);
}
.btn--primary {
  background: var(--red);
  border-color: var(--red);
  color: #fff;
}
.btn--primary:hover {
  background: var(--red-strong);
  border-color: var(--red-strong);
}
.btn--ghost[aria-pressed='true'] {
  background: var(--paper);
  color: var(--ink);
}
.btn--wide {
  width: 100%;
  min-height: 56px;
  font-size: var(--t-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.btn--wide::after {
  content: '→';
  font-weight: 400;
}
.btn--square {
  width: 44px;
  padding: 0;
  text-align: center;
  font-size: var(--t-lg);
}

/* ---------- Showroom card ---------- */

.showroom-card {
  position: absolute;
  left: var(--margin);
  top: calc(var(--topbar-h) + var(--margin));
  bottom: calc(var(--footer-h) + var(--margin));
  width: calc((100vw - 2 * var(--margin) - 11 * var(--gutter)) / 12 * 3 + 2 * var(--gutter));
  min-width: 280px;
  max-width: 360px;
  display: flex;
  flex-direction: column;
  gap: calc(var(--u) * 3);
  z-index: 5;
  padding: calc(var(--u) * 3);
  background: var(--surface);
  pointer-events: none;
}
.showroom-card > * {
  pointer-events: auto;
}
.display .line {
  display: block;
}
.showroom-card .display {
  border-top: 4px solid var(--paper);
  padding-top: calc(var(--u) * 2);
}
.spec {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--rule-strong);
}
.spec div {
  padding-top: var(--u);
}
.spec dt {
  font-size: var(--t-xs);
  color: var(--grey);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 600;
}
.spec dd {
  font-size: var(--t-sm);
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}
.keys-mini {
  border-top: 1px solid var(--rule-strong);
  padding-top: var(--u);
  margin-top: auto;
}
.keys-mini ul {
  list-style: none;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px var(--gutter);
  margin-top: var(--u);
  font-size: var(--t-sm);
  color: var(--mist);
}
.keys-mini kbd {
  margin-right: 4px;
}

@media (max-height: 760px) {
  .showroom-card {
    overflow-y: auto;
  }
  .showroom-card .keys-mini {
    display: none;
  }
}
@media (max-height: 620px) {
  .showroom-card .lede,
  .showroom-card .spec {
    display: none;
  }
  .showroom-card .display {
    font-size: var(--t-xl);
  }
  .showroom-card {
    top: auto;
    gap: calc(var(--u) * 1.5);
  }
}

/* ---------- HUD ---------- */

.hud {
  position: absolute;
  left: var(--margin);
  bottom: calc(var(--footer-h) + var(--margin));
  z-index: 5;
  display: flex;
  align-items: flex-end;
  gap: var(--gutter);
  pointer-events: none;
}
.speedo,
.laps {
  background: var(--surface);
  border-top: 2px solid var(--paper);
  padding: calc(var(--u) * 1.5) calc(var(--u) * 2) calc(var(--u) * 2);
}
.speedo {
  width: 330px;
}
.speedo__value {
  font-size: var(--t-3xl);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.04em;
  font-variant-numeric: tabular-nums;
  display: flex;
  align-items: baseline;
  gap: var(--u);
}
.speedo__value #hud-speed {
  min-width: 3ch;
  text-align: right;
}
.speedo__unit {
  font-size: var(--t-sm);
  font-weight: 600;
  letter-spacing: 0;
  color: var(--mist);
}
.speedo__row {
  display: flex;
  gap: calc(var(--u) * 1.5);
  align-items: center;
  margin-top: var(--u);
  font-size: var(--t-sm);
  font-variant-numeric: tabular-nums;
}
.meta {
  display: flex;
  gap: 6px;
  align-items: baseline;
  font-weight: 600;
  white-space: nowrap;
}
.gear {
  display: flex;
  font-weight: 700;
  font-size: var(--t-md);
}
.gear span {
  width: 28px;
  height: 28px;
  display: grid;
  place-items: center;
  border: 1px solid var(--rule-strong);
  color: var(--grey);
}
.gear span + span {
  border-left: none;
}
.gear span[data-on='true'] {
  background: var(--paper);
  color: var(--ink);
}
.gear .gear__r[data-on='true'] {
  background: var(--red);
  color: #fff;
  border-color: var(--red);
}
.limitbar {
  position: relative;
  height: 4px;
  background: var(--graphite);
  margin-top: calc(var(--u) * 1.5);
}
.limitbar span {
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 0;
  background: var(--paper);
}
.limitbar i {
  position: absolute;
  top: -4px;
  bottom: -4px;
  width: 2px;
  background: var(--red);
}
.laps {
  display: grid;
  grid-template-columns: auto auto;
  gap: var(--u) calc(var(--u) * 3);
  font-variant-numeric: tabular-nums;
}
.laps__value {
  font-size: var(--t-xl);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
}
.laps__value--small {
  font-size: var(--t-md);
  line-height: 1.5;
}
.laps .is-best {
  color: var(--paper);
  box-shadow: inset 0 -2px 0 var(--red);
}

.minimap {
  position: absolute;
  right: var(--margin);
  bottom: calc(var(--footer-h) + var(--margin));
  width: 176px;
  height: 176px;
  background: var(--surface);
  border-top: 2px solid var(--paper);
  z-index: 5;
  transition: right var(--dur) var(--ease);
}
.panel-open .minimap {
  right: calc(var(--panel-w) + var(--margin) * 2);
}

/* ---------- Side panel ---------- */

.panel {
  position: absolute;
  right: var(--margin);
  top: calc(var(--topbar-h) + var(--margin));
  bottom: calc(var(--footer-h) + var(--margin));
  width: var(--panel-w);
  background: var(--surface);
  border-top: 2px solid var(--paper);
  z-index: 8;
  display: flex;
  flex-direction: column;
  backdrop-filter: blur(6px);
}
.panel[hidden] {
  display: none;
}
.panel__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--rule);
  padding-left: calc(var(--u) * 2);
}
.tabs {
  display: flex;
  gap: calc(var(--u) * 2);
}
.tab {
  height: 48px;
  border: none;
  background: none;
  font-size: var(--t-sm);
  font-weight: 600;
  color: var(--grey);
  cursor: pointer;
  padding: 0;
  box-shadow: inset 0 -2px 0 transparent;
}
.tab[aria-selected='true'] {
  color: var(--paper);
  box-shadow: inset 0 -2px 0 var(--red);
}
.panel__body {
  padding: calc(var(--u) * 2);
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: calc(var(--u) * 3);
  flex: 1;
}
.panel__body[hidden] {
  display: none;
}

.group {
  border: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--u);
  min-width: 0;
}
.group legend {
  padding: 0;
  margin-bottom: var(--u);
}

.swatches {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--u);
}
.swatches--small {
  grid-template-columns: repeat(6, 1fr);
}
.swatch {
  aspect-ratio: 1.6;
  border: 1px solid var(--rule-strong);
  cursor: pointer;
  position: relative;
  padding: 0;
  background: var(--c);
}
.swatches--small .swatch {
  aspect-ratio: 1;
}
.swatch[aria-checked='true']::after {
  content: '';
  position: absolute;
  inset: -4px;
  border: 2px solid var(--paper);
}
.swatch span {
  position: absolute;
  left: 6px;
  right: 4px;
  bottom: 4px;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: clip;
  text-align: left;
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--label, #fff);
  text-transform: uppercase;
}
.swatches--small .swatch span {
  display: none;
}

.picker {
  display: grid;
  grid-template-columns: 1fr auto auto;
  align-items: center;
  gap: var(--u);
  font-size: var(--t-sm);
  color: var(--mist);
}
.picker input[type='color'] {
  width: 44px;
  height: 32px;
  border: 1px solid var(--rule-strong);
  background: none;
  padding: 2px;
  cursor: pointer;
}
.picker output {
  font-variant-numeric: tabular-nums;
  font-weight: 600;
  color: var(--paper);
  min-width: 7ch;
}

.segmented {
  display: flex;
}
.segmented label {
  flex: 1;
  position: relative;
}
.segmented input {
  position: absolute;
  opacity: 0;
  inset: 0;
  margin: 0;
  cursor: pointer;
}
.segmented span {
  display: grid;
  place-items: center;
  height: 40px;
  border: 1px solid var(--rule-strong);
  font-size: var(--t-sm);
  font-weight: 600;
}
.segmented label + label span {
  border-left: none;
}
.segmented input:checked + span {
  background: var(--paper);
  color: var(--ink);
}
.segmented input:focus-visible + span {
  box-shadow: var(--focus);
  position: relative;
  z-index: 1;
}

.switch {
  display: flex;
  align-items: center;
  gap: calc(var(--u) * 1.5);
  min-height: 40px;
  font-size: var(--t-sm);
  cursor: pointer;
}
.switch input {
  appearance: none;
  width: 36px;
  height: 20px;
  border: 1px solid var(--rule-strong);
  background: var(--graphite);
  position: relative;
  cursor: pointer;
  flex: none;
  margin: 0;
}
.switch input::after {
  content: '';
  position: absolute;
  top: 3px;
  left: 3px;
  width: 12px;
  height: 12px;
  background: var(--grey);
  transition: transform var(--dur) var(--ease), background var(--dur) var(--ease);
}
.switch input:checked {
  background: var(--red);
  border-color: var(--red);
}
.switch input:checked::after {
  transform: translateX(16px);
  background: #fff;
}
.switch small {
  color: var(--grey);
}

.range {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: calc(var(--u) * 1.5);
  font-size: var(--t-sm);
}
.range > span:not(.sr-only) {
  grid-column: 1 / -1;
  color: var(--mist);
}
.range output {
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  min-width: 8ch;
  text-align: right;
}
input[type='range'] {
  appearance: none;
  height: 32px;
  background: transparent;
  cursor: pointer;
  width: 100%;
  margin: 0;
}
input[type='range']::-webkit-slider-runnable-track {
  height: 2px;
  background: var(--rule-strong);
}
input[type='range']::-moz-range-track {
  height: 2px;
  background: var(--rule-strong);
}
input[type='range']::-webkit-slider-thumb {
  appearance: none;
  width: 16px;
  height: 24px;
  margin-top: -11px;
  background: var(--paper);
  border: none;
}
input[type='range']::-moz-range-thumb {
  width: 16px;
  height: 24px;
  background: var(--paper);
  border: none;
  border-radius: 0;
}

.row {
  display: flex;
  gap: var(--u);
}
.row .btn:first-child {
  flex: 1;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: var(--t-sm);
  color: var(--mist);
}
select {
  height: 44px;
  border: 1px solid var(--rule-strong);
  background: var(--graphite);
  padding: 0 calc(var(--u) * 1.5);
  font-size: var(--t-sm);
  color: var(--paper);
  border-radius: 0;
}

/* ---------- Touch controls ---------- */

.touch {
  position: absolute;
  left: 0;
  right: 0;
  bottom: calc(var(--footer-h) + 12px + env(safe-area-inset-bottom));
  padding: 0 max(12px, env(safe-area-inset-left)) 0 max(12px, env(safe-area-inset-right));
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  z-index: 7;
  pointer-events: none;
  user-select: none;
  -webkit-user-select: none;
}
.touch[hidden] {
  display: none;
}
.touch > * {
  pointer-events: auto;
}
.touch__steer {
  display: flex;
  gap: 12px;
}
.touch__pedals {
  display: flex;
  gap: 12px;
  align-items: flex-end;
}
.touch__aux {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.tbtn {
  touch-action: none;
  border: 1px solid var(--rule-strong);
  background: rgba(24, 25, 27, 0.78);
  color: var(--paper);
  font-size: var(--t-sm);
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  display: grid;
  place-items: center;
  cursor: pointer;
  user-select: none;
  -webkit-user-select: none;
  -webkit-touch-callout: none;
}
.tbtn svg {
  width: 36px;
  height: 36px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2.4;
}
.tbtn--steer {
  width: 84px;
  height: 84px;
}
.tbtn--gas {
  width: 84px;
  height: 128px;
  background: rgba(224, 37, 27, 0.85);
  border-color: var(--red);
  color: #fff;
}
.tbtn--brake {
  width: 84px;
  height: 84px;
}
.tbtn--small {
  width: 56px;
  height: 48px;
  font-size: var(--t-xs);
}
.tbtn.is-active {
  background: var(--paper);
  color: var(--ink);
}
.tbtn--gas.is-active {
  background: #ff4a3d;
  color: #fff;
}
.touch-on .hud {
  bottom: calc(var(--footer-h) + 160px);
}
.touch-on .minimap {
  bottom: auto;
  top: calc(var(--topbar-h) + 12px);
}

/* ---------- Toast ---------- */

.toast {
  position: absolute;
  left: 50%;
  top: calc(var(--topbar-h) + var(--margin));
  transform: translateX(-50%);
  z-index: 12;
  background: var(--paper);
  color: var(--ink);
  font-size: var(--t-sm);
  font-weight: 600;
  padding: 10px calc(var(--u) * 2);
  max-width: min(480px, calc(100vw - 32px));
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--dur) var(--ease);
  border-left: 4px solid var(--red);
}
.toast.is-visible {
  opacity: 1;
}

/* ---------- Footer credit ---------- */

.credit {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  min-height: var(--footer-h);
  padding: 6px var(--margin) calc(6px + env(safe-area-inset-bottom));
  background: var(--ink);
  border-top: 1px solid var(--rule);
  z-index: 10;
  font-size: var(--t-sm);
  line-height: 20px;
  color: var(--mist);
}
.credit__app {
  color: var(--paper);
  font-weight: 700;
}
.credit__names {
  color: var(--paper);
}

/* ---------- Dialogs ---------- */

.dialog {
  border: none;
  padding: 0;
  background: var(--charcoal);
  color: var(--paper);
  width: min(440px, calc(100vw - 32px));
  max-height: calc(100vh - 48px);
  border-top: 4px solid var(--red);
}
.dialog--wide {
  width: min(880px, calc(100vw - 32px));
}
.dialog::backdrop {
  background: rgba(8, 8, 9, 0.72);
}
.dialog__inner {
  padding: calc(var(--u) * 3);
  display: flex;
  flex-direction: column;
  gap: calc(var(--u) * 2);
}
.dialog__head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--rule);
  padding-bottom: calc(var(--u) * 1.5);
}
.dialog__title {
  font-size: var(--t-xl);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.15;
}
.stack {
  display: flex;
  flex-direction: column;
  gap: var(--u);
}
.cols {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: calc(var(--u) * 3) var(--gutter);
}
.cols section {
  display: flex;
  flex-direction: column;
  gap: var(--u);
}
.cols h3 {
  margin-top: var(--u);
}
.keys {
  border-collapse: collapse;
  font-size: var(--t-sm);
  width: 100%;
}
.keys th,
.keys td {
  text-align: left;
  padding: 6px 0;
  border-top: 1px solid var(--rule);
  vertical-align: top;
}
.keys th {
  font-weight: 400;
  white-space: nowrap;
  padding-right: var(--gutter);
}
.plain {
  list-style: none;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: var(--t-sm);
  color: var(--mist);
}
.plain strong {
  color: var(--paper);
}
.record {
  display: flex;
  justify-content: space-between;
  font-size: var(--t-sm);
  color: var(--mist);
  font-variant-numeric: tabular-nums;
}
.record strong {
  color: var(--paper);
}
.credit-block {
  font-size: var(--t-lg);
  font-weight: 700;
  letter-spacing: -0.01em;
  line-height: 1.3;
  border-left: 4px solid var(--red);
  padding-left: calc(var(--u) * 2);
}

/* ---------- Overlays ---------- */

.overlay {
  position: fixed;
  inset: 0;
  z-index: 50;
  background: var(--ink);
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: var(--margin);
}
.overlay[hidden] {
  display: none;
}
.overlay__inner {
  max-width: 520px;
  margin-left: calc((100vw - 2 * var(--margin)) / 12);
  display: flex;
  flex-direction: column;
  gap: calc(var(--u) * 2);
}
.overlay__title {
  font-size: var(--t-2xl);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1;
}
.overlay__credit {
  position: absolute;
  left: var(--margin);
  bottom: var(--margin);
  right: var(--margin);
  font-size: var(--t-sm);
  color: var(--paper);
}
.progress {
  height: 4px;
  background: var(--graphite);
  width: 100%;
}
.progress span {
  display: block;
  height: 100%;
  width: 0;
  background: var(--red);
  transition: width 200ms var(--ease);
}
.overlay.is-done {
  opacity: 0;
  pointer-events: none;
  transition: opacity 300ms var(--ease);
}

/* ---------- Jet flight ---------- */

.btn-flight {
  box-shadow: inset 0 -2px 0 var(--red);
}
.btn-flight.is-charging,
.tbtn--jet.is-charging,
#flight-launch.is-charging {
  opacity: 0.5;
}
.tbtn--jet {
  background: rgba(111, 183, 214, 0.25);
  border-color: #6fb7d6;
}

/* ---------- Stunt lab ---------- */

:root {
  --st-panel-w: 340px;
  --st-timeline-h: 136px;
}

.mode-stunt .scene {
  cursor: grab;
}

.stunt-controls {
  position: absolute;
  left: var(--margin);
  top: calc(var(--topbar-h) + var(--margin));
  right: calc(var(--st-panel-w) + var(--margin) * 2);
  z-index: 6;
  display: flex;
  flex-wrap: wrap;
  gap: var(--u) calc(var(--u) * 1.5);
  align-items: flex-end;
}
.st-select {
  display: flex;
  flex-direction: column;
  gap: 2px;
  background: var(--surface);
  padding: 6px 10px 8px;
  border-top: 2px solid var(--paper);
}
.st-select select {
  height: 32px;
  min-width: 170px;
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--rule-strong);
  padding: 0;
  font-weight: 600;
  font-size: var(--t-sm);
}
.st-select option {
  background: var(--charcoal);
}
.segbar {
  display: flex;
  background: var(--surface);
}
.seg--sm {
  height: 36px;
  padding: 0 12px;
  font-size: var(--t-sm);
}

.stunt-panel {
  position: absolute;
  right: var(--margin);
  top: calc(var(--topbar-h) + var(--margin));
  bottom: calc(var(--footer-h) + var(--st-timeline-h) + var(--margin) * 2);
  width: var(--st-panel-w);
  z-index: 6;
  background: var(--surface);
  border-top: 2px solid var(--paper);
  padding: calc(var(--u) * 1.5) calc(var(--u) * 2) calc(var(--u) * 2);
  display: flex;
  flex-direction: column;
  gap: calc(var(--u) * 1.5);
  overflow-y: auto;
  backdrop-filter: blur(6px);
}
.st-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
}
.st-state {
  font-size: var(--t-lg);
  font-weight: 700;
  letter-spacing: -0.01em;
  line-height: 1.2;
}
.st-panel-toggle {
  display: none;
}
.st-diagram-wrap {
  display: grid;
  grid-template-columns: 150px 1fr;
  gap: var(--gutter);
  align-items: center;
  border-top: 1px solid var(--rule);
  padding-top: var(--u);
}
#st-diagram {
  width: 150px;
  height: 150px;
  display: block;
}
.st-forces {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-variant-numeric: tabular-nums;
}
.force-row {
  display: grid;
  grid-template-columns: 10px 1fr auto;
  gap: 8px;
  align-items: center;
  font-size: var(--t-sm);
}
.force-swatch {
  width: 10px;
  height: 10px;
  background: var(--fc);
}
.force-swatch--ring {
  background: none;
  border: 2px solid var(--fc);
  border-radius: 50%;
}
.force-name {
  color: var(--mist);
  white-space: nowrap;
}
.force-number {
  font-weight: 700;
  text-align: right;
}
.force-number small {
  font-size: var(--t-xs);
  color: var(--grey);
  margin-left: 2px;
  font-weight: 500;
}
.st-body {
  display: flex;
  flex-direction: column;
  gap: calc(var(--u) * 1.5);
}
.st-mass {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  border-top: 1px solid var(--rule);
  padding-top: var(--u);
  font-size: var(--t-sm);
  color: var(--mist);
  gap: var(--u);
}
.st-mass strong {
  color: var(--paper);
  font-size: var(--t-md);
  font-variant-numeric: tabular-nums;
}
.st-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin: 0;
  border-top: 1px solid var(--rule);
}
.st-grid div {
  padding-top: 6px;
}
.st-grid dt {
  font-size: var(--t-xs);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 600;
  color: var(--grey);
}
.st-grid dd {
  margin: 0;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  font-size: var(--t-sm);
}
.st-grid dd[data-ok='false'] {
  color: #ff6b5f;
}
.st-note {
  border-top: 1px solid var(--rule);
  padding-top: var(--u);
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.st-disclaimer {
  color: var(--grey);
  font-size: var(--t-xs);
}

.stunt-timeline {
  position: absolute;
  left: var(--margin);
  right: var(--margin);
  bottom: calc(var(--footer-h) + var(--margin));
  height: var(--st-timeline-h);
  z-index: 6;
  background: var(--surface);
  border-top: 2px solid var(--paper);
  padding: 10px calc(var(--u) * 2) 12px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.st-transport {
  display: flex;
  align-items: center;
  gap: calc(var(--u) * 1.5);
}
.st-play {
  width: 44px;
  height: 44px;
  border: none;
  background: var(--red);
  color: #fff;
  display: grid;
  place-items: center;
  cursor: pointer;
  flex: none;
}
.st-play svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
  stroke: currentColor;
  stroke-width: 2;
}
.st-play:hover {
  background: var(--red-strong);
}
.st-time {
  font-variant-numeric: tabular-nums;
  font-weight: 700;
  font-size: var(--t-md);
}
.st-div {
  color: var(--grey);
  margin: 0 6px;
  font-weight: 400;
}
.st-rate select {
  height: 32px;
}
.st-trials {
  margin-left: auto;
  display: flex;
  gap: var(--u);
}
.btn--sm {
  min-height: 36px;
  padding: 0 calc(var(--u) * 2);
}
.st-track {
  position: relative;
  height: 28px;
}
.st-bar {
  position: absolute;
  left: 0;
  right: 0;
  top: 13px;
  height: 2px;
  background: var(--rule-strong);
}
.st-bar span {
  display: block;
  height: 100%;
  width: 0;
  background: var(--red);
}
.st-ticks i {
  position: absolute;
  top: 8px;
  width: 1px;
  height: 12px;
  background: var(--mist);
}
.st-track input {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 28px;
  background: transparent;
}
.st-track input::-webkit-slider-runnable-track {
  background: transparent;
}
.st-track input::-moz-range-track {
  background: transparent;
}
.st-chapters {
  display: flex;
  gap: 2px;
  overflow-x: auto;
  scrollbar-width: none;
}
.chapter {
  border: none;
  background: transparent;
  color: var(--grey);
  font-size: var(--t-xs);
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 4px 8px;
  cursor: pointer;
  white-space: nowrap;
}
.chapter:hover {
  color: var(--paper);
}
.chapter[aria-current='true'] {
  color: var(--paper);
  box-shadow: inset 0 -2px 0 var(--red);
}

@media (max-width: 1100px) {
  :root {
    --st-panel-w: 300px;
  }
  .st-diagram-wrap {
    grid-template-columns: 104px 1fr;
  }
  #st-diagram {
    width: 104px;
    height: 104px;
  }
}

@media (max-width: 760px) {
  :root {
    --st-timeline-h: 118px;
  }
  .stunt-controls {
    right: var(--margin);
    top: calc(var(--topbar-h) + 8px);
    gap: 6px;
  }
  .st-select {
    padding: 4px 8px 6px;
  }
  .st-select select {
    min-width: 132px;
  }
  .seg--sm {
    height: 34px;
    padding: 0 9px;
    font-size: var(--t-xs);
  }
  .stunt-panel {
    left: 0;
    right: 0;
    top: auto;
    width: auto;
    bottom: calc(var(--footer-h) + var(--st-timeline-h));
    max-height: 52vh;
    padding: var(--u) var(--margin);
    gap: var(--u);
  }
  .st-panel-toggle {
    display: inline-flex;
  }
  .stunt-panel[data-open='false'] .st-body {
    display: none;
  }
  .st-state {
    font-size: var(--t-md);
  }
  .st-diagram-wrap {
    grid-template-columns: 84px 1fr;
  }
  #st-diagram {
    width: 84px;
    height: 84px;
  }
  .force-row {
    font-size: var(--t-xs);
  }
  .stunt-timeline {
    left: 0;
    right: 0;
    bottom: var(--footer-h);
    padding: 8px var(--margin) 8px;
  }
  .st-time {
    font-size: var(--t-sm);
  }
  .st-transport {
    gap: var(--u);
  }
  .st-div,
  #st-duration {
    display: none;
  }
  .st-rate select {
    width: 66px;
    padding: 0 6px;
  }
  .st-trials .btn--sm {
    padding: 0 10px;
  }
}
@media (max-width: 420px) {
  #st-restart {
    display: none;
  }
}

@media (max-height: 500px) and (orientation: landscape) {
  :root {
    --st-timeline-h: 104px;
  }
  .stunt-panel {
    max-height: none;
  }
  .stunt-panel .st-body {
    display: none;
  }
}

/* ---------- Responsive ---------- */



@media (max-width: 1100px) {
  .icon-btn .label {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(0 0 0 0);
  }
  .icon-btn {
    padding: 0;
    width: 40px;
    justify-content: center;
  }
}

@media (max-width: 900px) {
  :root {
    --margin: 16px;
    --gutter: 12px;
    --panel-w: 300px;
  }
  .brand {
    grid-column: 1 / span 4;
  }
  .modes {
    grid-column: 5 / span 4;
  }
  .actions {
    grid-column: 9 / span 4;
  }
  .showroom-card {
    width: 300px;
  }
  .display {
    font-size: var(--t-2xl);
  }
}

@media (max-width: 760px) {
  :root {
    --topbar-h: 104px;
    --footer-h: 44px;
  }
  .topbar {
    grid-template-rows: 52px 52px;
    align-items: center;
  }
  .brand {
    grid-column: 1 / span 6;
  }
  .modes {
    grid-column: 7 / span 6;
    justify-content: flex-end;
  }
  .seg {
    height: 36px;
    padding: 0 12px;
  }
  .actions {
    grid-column: 1 / -1;
    grid-row: 2;
    justify-content: space-between;
    border-top: 1px solid var(--rule);
    margin: 0 calc(-1 * var(--margin));
    padding: 0 var(--margin);
  }
  .icon-btn {
    height: 44px;
    width: 44px;
  }
  .brand__meta {
    display: none;
  }
  .showroom-card {
    left: var(--margin);
    right: var(--margin);
    top: auto;
    width: auto;
    min-width: 0;
    max-width: none;
    gap: calc(var(--u) * 1.5);
    padding: calc(var(--u) * 2);
  }
  .showroom-card .lede,
  .showroom-card .keys-mini,
  .showroom-card .spec {
    display: none;
  }
  .showroom-card .display {
    font-size: var(--t-xl);
    border-top-width: 2px;
    padding-top: var(--u);
  }
  .showroom-card .display .line {
    display: inline;
  }
  .showroom-card .display {
    letter-spacing: -0.01em;
  }
  .hud {
    left: var(--margin);
    right: var(--margin);
    top: calc(var(--topbar-h) + 12px);
    bottom: auto;
    align-items: flex-start;
    gap: var(--u);
  }
  .touch-on .hud {
    bottom: auto;
  }
  .speedo {
    width: auto;
    padding: var(--u) 12px 12px;
  }
  .speedo__value {
    font-size: var(--t-2xl);
  }
  .speedo__row .meta:nth-child(3) {
    display: none;
  }
  .laps {
    padding: var(--u) 12px;
    grid-template-columns: auto;
    gap: 2px;
  }
  .laps > div:nth-child(n + 3) {
    display: none;
  }
  .laps__value {
    font-size: var(--t-md);
  }
  .minimap,
  .touch-on .minimap {
    width: 104px;
    height: 104px;
    top: calc(var(--topbar-h) + 12px);
    bottom: auto;
    right: var(--margin);
  }
  .panel {
    left: 0;
    right: 0;
    top: auto;
    bottom: var(--footer-h);
    width: auto;
    max-height: 62vh;
  }
  .panel-open .minimap {
    right: var(--margin);
  }
  .credit {
    font-size: var(--t-xs);
    line-height: 16px;
    padding-top: 6px;
  }
  .credit__app,
  .credit__sep {
    display: none;
  }
  .cols {
    grid-template-columns: 1fr;
  }
  .dialog__inner {
    padding: calc(var(--u) * 2);
  }
  .overlay__inner {
    margin-left: 0;
  }
  .overlay__title {
    font-size: var(--t-xl);
  }
}

@media (max-width: 420px) {
  .tbtn--steer {
    width: 76px;
    height: 76px;
  }
  .tbtn--gas {
    width: 76px;
    height: 116px;
  }
  .tbtn--brake {
    width: 72px;
    height: 76px;
  }
  .tbtn--small {
    width: 52px;
  }
  .touch__pedals,
  .touch__steer {
    gap: 8px;
  }
  .hud .laps {
    display: none;
  }
}

@media (max-height: 500px) and (orientation: landscape) {
  :root {
    --topbar-h: 52px;
    --footer-h: 28px;
  }
  .topbar {
    grid-template-rows: 52px;
  }
  .actions {
    grid-row: 1;
    grid-column: 7 / span 6;
    border-top: none;
    margin: 0;
    padding: 0;
    justify-content: flex-end;
  }
  .brand {
    grid-column: 1 / span 3;
  }
  .modes {
    grid-column: 4 / span 3;
  }
  .showroom-card .display {
    display: none;
  }
  .hud {
    top: calc(var(--topbar-h) + 8px);
    bottom: auto;
  }
  .touch-on .hud {
    bottom: auto;
  }
  .speedo__value {
    font-size: var(--t-xl);
  }
  .minimap,
  .touch-on .minimap {
    width: 104px;
    height: 104px;
    top: calc(var(--topbar-h) + 8px);
    bottom: auto;
  }
  .laps > div:nth-child(n + 3) {
    display: none;
  }
}

.reduced-motion *,
.reduced-motion *::before,
.reduced-motion *::after {
  transition: none !important;
  animation: none !important;
}
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}

@media (max-width: 480px) {
  .brand__name {
    display: none;
  }
  .topbar .brand {
    grid-column: 1 / span 2;
  }
  .topbar .modes {
    grid-column: 3 / -1;
    justify-content: flex-end;
  }
  .modes .seg {
    padding: 0 10px;
    font-size: var(--t-xs);
  }
}

/* Drive mode adds Flight, Camera, Reset and Pause: show icons only below 1360 px. */
@media (max-width: 1360px) {
  .mode-drive .icon-btn .label {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(0 0 0 0);
  }
  .mode-drive .icon-btn {
    padding: 0;
    width: 40px;
    justify-content: center;
  }
}