:root {
  --bg-dark: #090d16;
  --bg-card: rgba(15, 23, 42, 0.92);
  --border-card: rgba(255, 255, 255, 0.12);

  --color-orange: #f97316;
  --color-lime: #84cc16;
  --color-gold: #f59e0b;
  --color-red: #ef4444;

  --text-primary: #ffffff;
  --text-secondary: #94a3b8;

  --radius-xl: 20px;
  --radius-lg: 14px;
  --radius-md: 10px;
  --radius-sm: 6px;
}

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

html, body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background-color: var(--bg-dark);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--text-primary);
}

#game-container {
  position: relative;
  width: 100%;
  height: 100%;
  overflow: hidden;
  touch-action: none;
}

#game-canvas {
  width: 100%;
  height: 100%;
  display: block;
}

/* Header HUD */
#hud {
  position: absolute;
  top: 14px;
  left: 0;
  right: 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 18px;
  pointer-events: none;
  z-index: 10;
}

.hud-pill {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-card);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid var(--border-card);
  padding: 6px 14px;
  border-radius: var(--radius-lg);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
  position: relative;
}

.hud-label {
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 1px;
  color: var(--text-secondary);
}

.hud-val {
  font-size: 15px;
  font-weight: 900;
  font-variant-numeric: tabular-nums;
  color: var(--color-orange);
}

.bonus-toast {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-lime);
  color: #0f172a;
  font-size: 11px;
  font-weight: 900;
  padding: 2px 8px;
  border-radius: 10px;
  white-space: nowrap;
  margin-top: 4px;
  animation: bonusPop 0.8s ease forwards;
}

.bonus-toast.hidden {
  display: none;
}

@keyframes bonusPop {
  0% { opacity: 0; transform: translate(-50%, -6px); }
  20% { opacity: 1; transform: translate(-50%, 0); }
  80% { opacity: 1; }
  100% { opacity: 0; transform: translate(-50%, -10px); }
}

.hud-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: 6px 14px;
  color: #fff;
  font-weight: 800;
  font-size: 12px;
  cursor: pointer;
  pointer-events: auto;
  transition: transform 0.1s ease, background 0.15s ease;
}

.hud-btn:active {
  transform: scale(0.96);
}

/* Overlays */
.overlay {
  position: absolute;
  inset: 0;
  background: rgba(10, 15, 30, 0.85);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  z-index: 30;
  transition: opacity 0.2s ease, visibility 0.2s ease;
}

.overlay.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.menu-card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-xl);
  padding: 28px 24px;
  width: 100%;
  max-width: 440px;
  text-align: center;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.6);
  animation: cardIn 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes cardIn {
  from { opacity: 0; transform: scale(0.94); }
  to { opacity: 1; transform: scale(1); }
}

.menu-badge {
  display: inline-block;
  background: rgba(249, 115, 22, 0.15);
  color: var(--color-orange);
  border: 1px solid rgba(249, 115, 22, 0.35);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 1.5px;
  padding: 4px 12px;
  border-radius: 20px;
  margin-bottom: 12px;
}

.menu-title {
  font-size: 32px;
  font-weight: 900;
  letter-spacing: -0.5px;
  margin-bottom: 8px;
}

.menu-subtitle {
  font-size: 13.5px;
  color: var(--text-secondary);
  line-height: 1.45;
  margin-bottom: 20px;
}

.controls-guide {
  display: flex;
  flex-direction: column;
  gap: 10px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  padding: 14px;
  margin-bottom: 22px;
  font-size: 12.5px;
  color: var(--text-secondary);
}

.guide-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.key-pill {
  display: inline-block;
  background: rgba(255, 255, 255, 0.14);
  color: #fff;
  padding: 3px 8px;
  border-radius: 6px;
  font-weight: 800;
  font-size: 11px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: none;
  border-radius: var(--radius-md);
  padding: 12px 20px;
  font-family: inherit;
  font-size: 15px;
  font-weight: 800;
  cursor: pointer;
  transition: transform 0.12s ease;
}

.btn-primary {
  background: linear-gradient(135deg, #f97316, #ea580c);
  color: #fff;
  box-shadow: 0 4px 14px rgba(249, 115, 22, 0.4);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.start-cta {
  width: 100%;
}

/* Clear Card */
.stars-row {
  font-size: 36px;
  margin-bottom: 8px;
}

.clear-title {
  font-size: 26px;
  font-weight: 900;
  margin-bottom: 4px;
}

.final-time {
  font-size: 34px;
  font-weight: 900;
  color: var(--color-gold);
  margin-bottom: 6px;
  font-variant-numeric: tabular-nums;
}

.clear-desc {
  font-size: 13.5px;
  color: var(--text-secondary);
  margin-bottom: 20px;
}

.clear-actions {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

/* Touch Controls */
.touch-controls {
  position: absolute;
  bottom: 24px;
  left: 0;
  right: 0;
  display: flex;
  justify-content: space-between;
  padding: 0 20px;
  pointer-events: none;
  z-index: 15;
}

.touch-cluster-left, .touch-cluster-right {
  display: flex;
  gap: 12px;
  pointer-events: auto;
}

.touch-circle-btn {
  width: 68px;
  height: 68px;
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.25);
  background: rgba(15, 23, 42, 0.7);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  color: #fff;
  font-size: 11px;
  font-weight: 900;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: transform 0.1s ease;
}

.touch-circle-btn:active {
  transform: scale(0.92);
}

.touch-gas {
  background: rgba(249, 115, 22, 0.5);
  border-color: var(--color-orange);
}

.touch-brake {
  background: rgba(239, 68, 68, 0.5);
  border-color: var(--color-red);
}