:root {
  --background: 220 22% 96%;
  --foreground: 220 20% 10%;
  --primary: 215 100% 61%;
  --secondary: 198 100% 52%;
  --muted: 220 16% 90%;
  --destructive: 0 82% 58%;
  --border: 220 18% 82%;
  --card: 0 0% 100%;

  --shadow-sm: 0 10px 24px hsla(220, 30%, 10%, 0.08);
  --shadow-md: 0 18px 48px hsla(220, 35%, 10%, 0.14);
  --shadow-lg: 0 28px 90px hsla(220, 45%, 8%, 0.24);

  --transition-fast: 180ms ease;
  --transition-smooth: 420ms cubic-bezier(0.22, 1, 0.36, 1);

  --radius-sm: 0.75rem;
  --radius-md: 1.1rem;
  --radius-lg: 1.75rem;
}

.dark {
  --background: 222 30% 6%;
  --foreground: 210 20% 96%;
  --primary: 215 100% 62%;
  --secondary: 193 100% 54%;
  --muted: 221 18% 14%;
  --destructive: 0 84% 62%;
  --border: 220 16% 20%;
  --card: 222 24% 9%;

  --shadow-sm: 0 10px 24px hsla(220, 40%, 2%, 0.18);
  --shadow-md: 0 18px 48px hsla(220, 55%, 2%, 0.28);
  --shadow-lg: 0 35px 110px hsla(220, 75%, 2%, 0.45);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, sans-serif;
  background: hsl(var(--background));
  color: hsl(var(--foreground));
}

::selection {
  background: hsl(var(--primary) / 0.24);
  color: hsl(var(--foreground));
}

::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

::-webkit-scrollbar-track {
  background: hsl(var(--background));
}

::-webkit-scrollbar-thumb {
  border-radius: 999px;
  background: hsl(var(--foreground) / 0.18);
}

.animate-float {
  animation: floatCar 4.5s ease-in-out infinite;
}

@keyframes floatCar {
  0%,
  100% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-10px);
  }
}

.skeleton {
  position: relative;
  overflow: hidden;
  background: linear-gradient(90deg, hsl(var(--muted) / 0.35), hsl(var(--foreground) / 0.08), hsl(var(--muted) / 0.35));
  background-size: 200% 100%;
  animation: shimmer 1.4s linear infinite;
}

@keyframes shimmer {
  from {
    background-position: 200% 0;
  }
  to {
    background-position: -200% 0;
  }
}

a,
button {
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), background-color var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast), opacity var(--transition-fast);
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation: none !important;
    transition-duration: 0.01ms !important;
    transition-delay: 0ms !important;
  }
}