:root {
  --bg-dark: #111111;
  --panel-bg: rgba(17, 17, 17, 0.78);
  --panel-border: rgba(255, 255, 255, 0.12);
  --text-main: #f4f4f4;
  --text-dim: #a3a3a3;
  --accent: #e6e6e6;
  --accent-cyan: #e6e6e6;
  --accent-emerald: #e6e6e6;
  --accent-amber: #e6e6e6;
  --font-sans: 'IBM Plex Sans', system-ui, -apple-system, sans-serif;
  --font-mono: 'IBM Plex Mono', ui-monospace, monospace;
  --ink: #111111;
}

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

html, body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background-color: var(--bg-dark);
  font-family: var(--font-sans);
  color: var(--text-main);
  -webkit-font-smoothing: antialiased;
  touch-action: none;
  overscroll-behavior: none;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

#app-container {
  position: relative;
  width: 100vw;
  height: 100vh;
  overflow: hidden;
  touch-action: none;
}

#simCanvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: block;
  cursor: default;
  touch-action: none;
}

.game-hud {
  position: absolute;
  top: 16px;
  left: 18px;
  right: 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  pointer-events: none;
  z-index: 10;
}

.game-hud > * {
  pointer-events: auto;
}

.hud-group {
  display: flex;
  align-items: center;
  gap: 10px;
}

.hud-chip {
  height: 46px;
  min-width: 118px;
  padding: 6px 12px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 3px;
  border-radius: 4px;
  background: var(--panel-bg);
  border: 1px solid var(--panel-border);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.hud-chip[hidden] {
  display: none !important;
}

.hud-kicker {
  font-size: 0.62rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-dim);
  line-height: 1;
  white-space: nowrap;
}

.hud-value {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  font-weight: 500;
  font-variant-numeric: tabular-nums;
  line-height: 1.1;
  color: var(--text-main);
  white-space: nowrap;
}

.hud-chip.score .hud-value.is-record {
  color: var(--accent);
}

.hud-controls {
  display: none;
  align-items: center;
  gap: 10px;
  height: 46px;
  padding: 0 12px;
  border-radius: 4px;
  background: var(--panel-bg);
  border: 1px solid var(--panel-border);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

body.is-playing .hud-controls {
  display: flex;
}

.ctrl {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: var(--text-dim);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.03em;
  white-space: nowrap;
}

.ctrl kbd {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 18px;
  height: 18px;
  padding: 0 4px;
  border-radius: 2px;
  border: 1px solid rgba(255, 255, 255, 0.28);
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-main);
  font-family: inherit;
  font-size: 0.68rem;
  line-height: 1;
}

.control-card {
  margin: 0 0 16px;
}

.control-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px 14px;
  margin-top: 10px;
  text-align: left;
}

.control-list .ctrl {
  font-size: 0.78rem;
  color: var(--text-main);
}

@media (max-width: 980px) {
  .hud-controls .ctrl-label {
    display: none;
  }

  .hud-controls {
    gap: 6px;
    padding: 0 8px;
  }
}

.hud-icon-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: var(--panel-bg);
  border: 1px solid var(--panel-border);
  border-radius: 4px;
  color: var(--text-main);
  cursor: pointer;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

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

.hud-icon-btn:active {
  background: rgba(255, 255, 255, 0.06);
}

.touch-controls {
  position: absolute;
  inset: 0;
  display: none;
  pointer-events: none;
  z-index: 10;
}

@media (pointer: coarse), (max-width: 820px) {
  body.is-playing .touch-controls {
    display: block;
  }

  body.is-playing .toast {
    bottom: 108px;
  }
}

.touch-controls.active {
  display: block;
}

.touch-side {
  position: absolute;
  bottom: max(18px, env(safe-area-inset-bottom));
  display: flex;
  gap: 14px;
  pointer-events: auto;
  align-items: flex-end;
}

.touch-side.left {
  left: max(18px, env(safe-area-inset-left));
}

.touch-side.right {
  right: max(18px, env(safe-area-inset-right));
}

.touch-btn {
  width: 72px;
  height: 72px;
  border-radius: 4px;
  background: rgba(17, 17, 17, 0.82);
  border: 1px solid rgba(255, 255, 255, 0.16);
  color: var(--text-main);
  font-family: var(--font-sans);
  display: flex;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  touch-action: none;
  -webkit-tap-highlight-color: transparent;
}

.touch-btn:active {
  background: rgba(255, 255, 255, 0.18);
  border-color: var(--accent);
  color: var(--accent);
}

.touch-btn.action.brake {
  width: 72px;
}

.touch-arrow {
  width: 40px;
  height: 40px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.rotate-overlay {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 200;
  background: #111111;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.rotate-overlay.is-visible {
  display: flex;
}

.rotate-card {
  text-align: center;
  background: #1c1c1c;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 6px;
  padding: 28px 24px;
  max-width: 320px;
}

.rotate-card h2 {
  font-size: 1.05rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  color: var(--text-main);
  margin: 14px 0 6px;
}

.rotate-card p {
  font-size: 0.9rem;
  font-weight: 400;
  color: var(--text-dim);
}

.rotate-phone {
  width: 42px;
  height: 70px;
  margin: 0 auto;
  border: 2px solid var(--accent);
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.12);
  animation: rotatePhone 1.4s ease-in-out infinite;
}

@keyframes rotatePhone {
  0%, 30% { transform: rotate(0deg); }
  55%, 100% { transform: rotate(90deg); }
}

.modal-overlay {
  position: absolute;
  inset: 0;
  background: rgba(12, 12, 12, 0.65);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 50;
  animation: modalFadeIn 0.25s ease-out;
}

@keyframes modalFadeIn {
  from { opacity: 0; transform: scale(0.98); }
  to { opacity: 1; transform: scale(1); }
}

.modal-card {
  width: 90%;
  max-width: 420px;
  background: #1c1c1c;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 6px;
  padding: 28px 24px;
  text-align: center;
}

.modal-badge {
  display: inline-block;
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.45);
  color: var(--accent);
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 2px;
  margin-bottom: 14px;
}

.modal-title {
  font-size: 1.45rem;
  font-weight: 500;
  color: var(--text-main);
  letter-spacing: 0.04em;
  margin-bottom: 6px;
}

.modal-desc {
  font-size: 0.95rem;
  color: var(--text-dim);
  line-height: 1.45;
  margin-bottom: 20px;
}

.modal-stats {
  display: flex;
  justify-content: center;
  margin-bottom: 20px;
}

.modal-stat-box {
  background: #111111;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 4px;
  padding: 12px 18px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.modal-stat-box.highlight {
  min-width: 220px;
}

.m-stat-label {
  font-size: 0.64rem;
  font-weight: 500;
  color: var(--text-dim);
  letter-spacing: 0.16em;
}

.m-stat-val {
  font-family: var(--font-mono);
  font-size: 1.35rem;
  font-weight: 500;
  color: var(--text-main);
}

.modal-btn-action {
  width: 100%;
  padding: 13px 18px;
  border-radius: 4px;
  border: none;
  background: var(--text-main);
  color: #1c1c1c;
  font-family: var(--font-sans);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  cursor: pointer;
}

.modal-btn-action:hover {
  background: #ffffff;
}

.modal-btn-action:active {
  background: var(--accent);
}

.name-card {
  background: rgba(17, 17, 17, 0.92);
}

.name-input {
  width: 100%;
  margin: 0 0 12px;
  padding: 12px 14px;
  border-radius: 4px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: #111111;
  color: var(--text-main);
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 400;
  text-align: center;
  outline: none;
  user-select: text;
  -webkit-user-select: text;
  touch-action: manipulation;
}

.name-input:focus {
  border-color: var(--accent);
}

.leader-block {
  margin: 20px 0 18px;
  text-align: left;
}

.leader-title {
  display: block;
  margin-bottom: 10px;
  font-size: 0.64rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  color: var(--text-dim);
  text-align: center;
}

.leaderboard {
  list-style: none;
  margin: 0;
  padding: 0;
  max-height: 220px;
  overflow: auto;
}

.leader-row {
  display: grid;
  grid-template-columns: 28px 1fr auto;
  gap: 10px;
  align-items: center;
  padding: 7px 10px;
  border-radius: 3px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--text-main);
  background: #111111;
  margin-bottom: 4px;
}

.leader-row.is-you {
  border: 1px solid rgba(255, 255, 255, 0.4);
  color: var(--accent);
}

.leader-rank {
  color: var(--text-dim);
  font-weight: 500;
}

.leader-empty {
  margin: 0;
  text-align: center;
  color: var(--text-dim);
  font-size: 0.88rem;
  padding: 12px 0;
}

.toast {
  position: absolute;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(17, 17, 17, 0.82);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: var(--text-main);
  padding: 8px 14px;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  pointer-events: none;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: opacity 0.3s ease;
  z-index: 10;
  white-space: nowrap;
}