:root {
  --bg-carbon: #0e0f12;
  --bg-surface: #15171c;
  --bg-elevated: #1c1f26;
  --paper: #f4f2ec;
  --paper-muted: #b5b3ad;
  --ink-muted: #7e828e;
  --racing-red: #e12d39;
  --racing-red-hover: #f23d49;
  --studio-blue: #5067f4;
  --gold: #d9a441;
  --emerald: #22a06b;
  --border-subtle: rgba(244, 242, 236, 0.11);
  --border-strong: rgba(244, 242, 236, 0.22);
  --shadow-card: 0 24px 60px rgba(0, 0, 0, 0.55);
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-display: 'Helvetica Neue', 'Arial Black', Impact, sans-serif;
  --font-mono: 'JetBrains Mono', 'SFMono-Regular', Consolas, monospace;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  user-select: none;
  -webkit-user-select: none;
}

html, body {
  width: 100%;
  height: 100%;
  background-color: var(--bg-carbon);
  color: var(--paper);
  font-family: var(--font-sans);
  overflow: hidden;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
  color: inherit;
}

.studio-shell {
  display: flex;
  flex-direction: column;
  width: 100vw;
  height: 100dvh;
  background:
    radial-gradient(circle at 50% 0%, rgba(255, 255, 255, 0.03), transparent 55%),
    var(--bg-carbon);
}

/* Top Editorial Bar */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.65rem 1.25rem;
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border-subtle);
  z-index: 20;
}

.brand-group {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.brand-back {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  transition: opacity 0.2s ease;
}

.brand-back:hover {
  opacity: 0.85;
}

.brand-crest {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: var(--racing-red);
  color: #fff;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 0.82rem;
  letter-spacing: 0.06em;
}

.brand-titles {
  display: flex;
  flex-direction: column;
}

.brand-main {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 0.95rem;
  letter-spacing: 0.04em;
  color: var(--paper);
}

.brand-sub {
  font-size: 0.65rem;
  letter-spacing: 0.14em;
  color: var(--ink-muted);
  text-transform: uppercase;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.3rem 0.65rem;
  border-radius: 999px;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  background: rgba(34, 160, 107, 0.12);
  border: 1px solid rgba(34, 160, 107, 0.35);
  color: #4bce97;
}

.status-pill.offline {
  background: rgba(217, 164, 65, 0.15);
  border-color: rgba(217, 164, 65, 0.45);
  color: var(--gold);
}

.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: currentColor;
}

/* Mode Switcher */
.mode-tabs {
  display: flex;
  align-items: center;
  gap: 0.45rem;
}

.mode-tab {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.45rem 0.85rem;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-subtle);
  text-align: left;
  transition: all 0.18s ease;
}

.mode-tab:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--border-strong);
}

.mode-tab.active {
  background: var(--paper);
  color: var(--bg-carbon);
  border-color: var(--paper);
}

.mode-index {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  opacity: 0.6;
}

.mode-copy {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.mode-copy strong {
  font-size: 0.74rem;
  letter-spacing: 0.04em;
}

.mode-copy small {
  font-size: 0.63rem;
  opacity: 0.72;
}

/* Right Toolbar */
.toolbar {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.tool-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.45rem 0.8rem;
  border-radius: 8px;
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  font-size: 0.76rem;
  font-weight: 600;
  color: var(--paper);
  transition: all 0.18s ease;
}

.tool-btn:hover {
  border-color: var(--border-strong);
  background: #252932;
}

.tool-btn.active {
  border-color: rgba(244, 242, 236, 0.35);
}

.credit-btn {
  background: rgba(217, 164, 65, 0.1);
  border-color: rgba(217, 164, 65, 0.35);
  color: #f3c66b;
  font-family: var(--font-mono);
}

.credit-tag {
  padding: 0.1rem 0.35rem;
  border-radius: 4px;
  background: rgba(217, 164, 65, 0.22);
  font-size: 0.65rem;
  font-weight: 800;
}

.primary-btn {
  background: var(--studio-blue);
  border-color: var(--studio-blue);
  color: #fff;
}

/* Main Stage */
.stage-wrap {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.85rem 1.25rem;
  min-height: 0;
}

.viewport-card {
  position: relative;
  width: 100%;
  max-width: 1360px;
  height: 100%;
  border-radius: 14px;
  overflow: hidden;
  background: #14171d;
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-card);
}

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

/* Telemetry Top HUD */
.telemetry-top {
  position: absolute;
  top: 1rem;
  left: 1.25rem;
  right: 1.25rem;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  pointer-events: none;
  z-index: 5;
}

.telemetry-group {
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
}

.tel-box {
  background: rgba(14, 15, 18, 0.82);
  backdrop-filter: blur(8px);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  padding: 0.45rem 0.85rem;
  min-width: 105px;
}

.tel-label {
  display: block;
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--ink-muted);
  margin-bottom: 0.15rem;
}

.tel-value {
  font-family: var(--font-mono);
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--paper);
}

.tel-value small {
  font-size: 0.72rem;
  opacity: 0.7;
}

.tel-value.accent-red {
  color: #ff5a64;
}

.telemetry-right {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  pointer-events: auto;
}

.combo-pill {
  background: var(--racing-red);
  color: #fff;
  padding: 0.45rem 0.85rem;
  border-radius: 6px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  box-shadow: 0 8px 20px rgba(225, 45, 57, 0.35);
}

.icon-btn {
  width: 38px;
  height: 38px;
  border-radius: 8px;
  background: rgba(14, 15, 18, 0.82);
  border: 1px solid var(--border-subtle);
  color: var(--paper);
  font-family: var(--font-mono);
  font-weight: 800;
  font-size: 0.82rem;
}

.icon-btn:hover {
  border-color: var(--paper);
}

/* Bottom Instrument Cluster */
.instrument-cluster {
  position: absolute;
  bottom: 1rem;
  left: 1.25rem;
  right: 1.25rem;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  pointer-events: none;
  z-index: 5;
}

.cluster-left {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  background: rgba(14, 15, 18, 0.84);
  backdrop-filter: blur(8px);
  border: 1px solid var(--border-subtle);
  padding: 0.65rem 1rem;
  border-radius: 10px;
}

.car-badge {
  padding-right: 0.85rem;
  border-right: 1px solid var(--border-subtle);
}

.car-badge-label {
  display: block;
  font-size: 0.58rem;
  letter-spacing: 0.14em;
  color: var(--ink-muted);
}

.car-badge strong {
  font-size: 0.88rem;
  letter-spacing: 0.04em;
}

.boost-meter {
  width: 210px;
}

.boost-header {
  display: flex;
  justify-content: space-between;
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--paper-muted);
  margin-bottom: 0.35rem;
}

.boost-track {
  width: 100%;
  height: 7px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 99px;
  overflow: hidden;
}

.boost-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--studio-blue), var(--racing-red));
  transition: width 0.08s linear;
}

.cluster-right {
  display: flex;
  align-items: stretch;
  gap: 0.5rem;
  background: rgba(14, 15, 18, 0.88);
  backdrop-filter: blur(8px);
  border: 1px solid var(--border-subtle);
  padding: 0.6rem 0.95rem;
  border-radius: 10px;
}

.gear-box {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding-right: 0.8rem;
  border-right: 1px solid var(--border-subtle);
}

.gear-label {
  font-size: 0.56rem;
  letter-spacing: 0.12em;
  color: var(--ink-muted);
}

.gear-num {
  font-family: var(--font-mono);
  font-size: 1.65rem;
  font-weight: 900;
  color: var(--racing-red);
  line-height: 1;
}

.speed-box {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-width: 125px;
}

.rpm-bar {
  width: 100%;
  height: 5px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 3px;
  overflow: hidden;
  margin-bottom: 0.25rem;
}

.rpm-fill {
  height: 100%;
  background: var(--paper);
  transition: width 0.06s linear;
}

.speed-readout {
  display: flex;
  align-items: baseline;
  gap: 0.35rem;
}

.speed-digits {
  font-family: var(--font-mono);
  font-size: 1.75rem;
  font-weight: 900;
  letter-spacing: -0.03em;
  line-height: 1;
}

.speed-unit {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--ink-muted);
}

/* Editorial Modal Overlay */
.overlay-screen {
  position: absolute;
  inset: 0;
  background: rgba(10, 11, 14, 0.78);
  backdrop-filter: blur(10px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.25rem;
  z-index: 15;
}

.overlay-screen[hidden] {
  display: none !important;
}

.editorial-modal {
  width: 100%;
  max-width: 580px;
  background: #14161b;
  border: 1px solid var(--border-strong);
  border-radius: 14px;
  padding: 1.75rem 2rem;
  box-shadow: 0 32px 80px rgba(0, 0, 0, 0.65);
}

.garage-dialog {
  max-width: 720px;
  max-height: 90%;
  overflow-y: auto;
}

.modal-header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.6rem;
}

.editorial-kicker {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--racing-red);
  text-transform: uppercase;
}

.weather-pill {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  padding: 0.25rem 0.6rem;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.06);
  color: var(--paper-muted);
}

.editorial-title {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3.5vw, 2.35rem);
  font-weight: 900;
  letter-spacing: -0.02em;
  color: var(--paper);
  margin-bottom: 0.45rem;
}

.editorial-desc {
  font-size: 0.88rem;
  line-height: 1.5;
  color: var(--paper-muted);
  margin-bottom: 1.25rem;
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.6rem;
  margin-bottom: 1rem;
}

.metric-item {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  padding: 0.65rem 0.75rem;
}

.metric-label {
  display: block;
  font-size: 0.58rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--ink-muted);
  margin-bottom: 0.25rem;
}

.metric-val {
  font-family: var(--font-mono);
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--paper);
}

.metric-val.highlight-gold {
  color: #f3c66b;
}

.quick-car-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1rem;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-subtle);
  margin-bottom: 1rem;
}

.quick-label {
  display: block;
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--ink-muted);
}

.quick-car-info strong {
  font-size: 0.9rem;
}

.secondary-btn {
  padding: 0.45rem 0.85rem;
  border-radius: 6px;
  background: var(--bg-elevated);
  border: 1px solid var(--border-strong);
  font-size: 0.76rem;
  font-weight: 700;
  color: var(--paper);
  transition: all 0.18s ease;
}

.secondary-btn:hover {
  background: var(--paper);
  color: var(--bg-carbon);
}

.controls-table {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.5rem;
  margin-bottom: 1.35rem;
}

.ctrl-cell {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.45rem 0.7rem;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-subtle);
  border-radius: 6px;
  font-size: 0.74rem;
  color: var(--paper-muted);
}

kbd {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 700;
  padding: 0.15rem 0.4rem;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.08);
  color: var(--paper);
}

.start-race-btn {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.95rem 1.35rem;
  border-radius: 8px;
  background: var(--racing-red);
  color: #fff;
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 900;
  letter-spacing: 0.06em;
  transition: background 0.18s ease, transform 0.12s ease;
}

.start-race-btn:hover {
  background: var(--racing-red-hover);
  transform: translateY(-1px);
}

/* Garage Modal Specifics */
.close-btn {
  padding: 0.35rem 0.75rem;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.06);
  font-size: 0.75rem;
  font-weight: 700;
}

.car-roster {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem;
  margin-bottom: 1.35rem;
}

.car-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 0.9rem 1rem;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-subtle);
  gap: 0.65rem;
}

.car-card.selected {
  border-color: var(--paper);
  background: rgba(255, 255, 255, 0.06);
}

.car-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.car-swatch {
  width: 28px;
  height: 16px;
  border-radius: 4px;
  border: 1px solid rgba(255, 255, 255, 0.3);
}

.car-card h4 {
  font-size: 0.95rem;
  margin-bottom: 0.15rem;
}

.car-card p {
  font-size: 0.74rem;
  color: var(--paper-muted);
}

.car-Action-btn {
  width: 100%;
  padding: 0.5rem;
  border-radius: 6px;
  font-size: 0.75rem;
  font-weight: 800;
  background: var(--bg-elevated);
  border: 1px solid var(--border-strong);
  color: var(--paper);
}

.car-Action-btn.active-car {
  background: var(--paper);
  color: var(--bg-carbon);
}

.section-subhead {
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  color: var(--ink-muted);
  margin-bottom: 0.65rem;
}

.tuning-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.65rem;
}

.tune-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 0.85rem;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.025);
  border: 1px solid var(--border-subtle);
  gap: 0.75rem;
}

.tune-info strong {
  display: block;
  font-size: 0.8rem;
  margin-bottom: 0.2rem;
}

.tune-info small {
  display: block;
  font-size: 0.7rem;
  color: var(--paper-muted);
  line-height: 1.35;
  margin-bottom: 0.4rem;
}

.tune-lvl {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: #f3c66b;
  font-weight: 700;
}

.tune-buy-btn {
  padding: 0.45rem;
  border-radius: 6px;
  background: var(--studio-blue);
  color: #fff;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 800;
}

/* Touch Controls */
.touch-controls {
  display: none;
  position: absolute;
  bottom: 4.8rem;
  left: 1rem;
  right: 1rem;
  justify-content: space-between;
  pointer-events: none;
  z-index: 10;
}

.touch-left, .touch-right {
  display: flex;
  gap: 0.6rem;
  pointer-events: auto;
}

.touch-pad {
  min-width: 64px;
  height: 54px;
  padding: 0 1rem;
  border-radius: 10px;
  background: rgba(14, 15, 18, 0.78);
  border: 1px solid var(--border-strong);
  color: var(--paper);
  font-weight: 800;
  font-size: 0.85rem;
}

.boost-pad {
  background: rgba(225, 45, 57, 0.85);
  border-color: var(--racing-red);
}

/* Footer */
.bottombar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.5rem 1.25rem;
  background: var(--bg-surface);
  border-top: 1px solid var(--border-subtle);
  font-size: 0.72rem;
  color: var(--ink-muted);
}

.bottombar a {
  color: var(--paper);
  font-weight: 600;
}

.sep {
  margin: 0 0.4rem;
}

@media (max-width: 960px) {
  .topbar {
    flex-wrap: wrap;
  }
  .mode-tabs {
    order: 3;
    width: 100%;
    overflow-x: auto;
  }
  .metrics-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .controls-table, .car-roster, .tuning-grid {
    grid-template-columns: 1fr;
  }
  .touch-controls {
    display: flex;
  }
  .bottombar {
    flex-direction: column;
    gap: 0.25rem;
    text-align: center;
  }
}