:root {
  --background: 226 38% 8%;
  --foreground: 210 38% 96%;
  --primary: 186 100% 48%;
  --secondary: 43 100% 58%;
  --muted: 225 24% 20%;
  --destructive: 350 86% 58%;
  --border: 222 24% 25%;
  --card: 226 31% 12%;
  --shadow-sm: 0 8px 24px hsl(226 60% 3% / 0.22);
  --shadow-md: 0 18px 48px hsl(226 60% 3% / 0.34);
  --shadow-lg: 0 28px 80px hsl(226 70% 2% / 0.46);
  --transition-fast: 150ms ease;
  --transition-smooth: 260ms cubic-bezier(.2,.8,.2,1);
  --radius-sm: 0.75rem;
  --radius-md: 1rem;
  --radius-lg: 1.5rem;
}

.dark {
  --background: 226 38% 8%;
  --foreground: 210 38% 96%;
  --primary: 186 100% 48%;
  --secondary: 43 100% 58%;
  --muted: 225 24% 20%;
  --destructive: 350 86% 58%;
  --border: 222 24% 25%;
  --card: 226 31% 12%;
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  background: hsl(var(--background));
}

body {
  min-height: 100%;
  margin: 0;
  color: hsl(var(--foreground));
  background:
    radial-gradient(circle at top left, hsl(var(--primary) / 0.18), transparent 34rem),
    radial-gradient(circle at bottom right, hsl(var(--secondary) / 0.12), transparent 30rem),
    hsl(var(--background));
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

button {
  font: inherit;
}

input,
select,
textarea {
  font-size: max(16px, 1rem);
}

.bg-1 { background-color: hsl(var(--background)); }
.bg-2 { background-color: hsl(var(--card)); }
.bg-3 { background-color: hsl(var(--muted) / 0.42); }
.bg-4 { background-color: hsl(var(--muted) / 0.72); }
.text-primary { color: hsl(var(--foreground)); }
.text-secondary { color: hsl(var(--foreground) / 0.72); }
.text-tertiary { color: hsl(var(--foreground) / 0.52); }
.accent { color: hsl(var(--primary)); }

.focus-ring:focus-visible {
  outline: 3px solid hsl(var(--primary) / 0.65);
  outline-offset: 3px;
}

.game-road {
  background:
    radial-gradient(circle at 50% -10%, hsl(var(--primary) / 0.22), transparent 24rem),
    linear-gradient(90deg, hsl(226 28% 11%) 0%, hsl(224 20% 16%) 16%, hsl(224 18% 13%) 50%, hsl(224 20% 16%) 84%, hsl(226 28% 11%) 100%);
}

.road-lines {
  background-image:
    repeating-linear-gradient(to bottom, transparent 0 34px, hsl(var(--secondary) / 0.82) 34px 70px, transparent 70px 108px),
    linear-gradient(90deg, transparent 0 32%, hsl(var(--foreground) / 0.10) 32% 33%, transparent 33% 65%, hsl(var(--foreground) / 0.10) 65% 66%, transparent 66% 100%);
  background-size: 100% 150px, 100% 100%;
  animation: roadMove 760ms linear infinite;
  opacity: 0.92;
}

@keyframes roadMove {
  from { background-position: 0 0, 0 0; }
  to { background-position: 0 150px, 0 0; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}