:root {
  --background: 0 0% 100%;
  --foreground: 222 47% 12%;
  --primary: 207 95% 48%;
  --primary-foreground: 0 0% 100%;
  --secondary: 190 92% 45%;
  --secondary-foreground: 0 0% 100%;
  --muted: 210 40% 94%;
  --muted-foreground: 216 18% 43%;
  --destructive: 0 78% 56%;
  --destructive-foreground: 0 0% 100%;
  --border: 214 32% 88%;
  --card: 0 0% 100%;
  --shadow-sm: 0 6px 18px hsl(207 95% 48% / 0.08);
  --shadow-md: 0 14px 35px hsl(207 95% 48% / 0.15);
  --shadow-lg: 0 24px 60px hsl(207 95% 48% / 0.22);
  --transition-fast: 160ms ease;
  --transition-smooth: 280ms cubic-bezier(0.22, 1, 0.36, 1);
  --radius-sm: 0.85rem;
  --radius-md: 1.15rem;
  --radius-lg: 1.5rem;
}

.dark {
  --background: 222 47% 8%;
  --foreground: 210 40% 98%;
  --primary: 202 96% 58%;
  --primary-foreground: 222 47% 8%;
  --secondary: 188 90% 52%;
  --secondary-foreground: 222 47% 8%;
  --muted: 222 35% 16%;
  --muted-foreground: 215 20% 72%;
  --destructive: 0 72% 58%;
  --destructive-foreground: 0 0% 100%;
  --border: 220 30% 22%;
  --card: 222 42% 11%;
  --shadow-sm: 0 6px 18px hsl(202 96% 58% / 0.12);
  --shadow-md: 0 14px 35px hsl(202 96% 58% / 0.18);
  --shadow-lg: 0 24px 60px hsl(202 96% 58% / 0.26);
}

* {
  box-sizing: border-box;
}

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

body {
  min-height: 100%;
  margin: 0;
  background:
    radial-gradient(circle at 50% -10%, hsl(var(--primary) / 0.14), transparent 34rem),
    linear-gradient(180deg, hsl(var(--background)), hsl(var(--background)));
  color: hsl(var(--foreground));
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

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

::selection {
  background: hsl(var(--primary) / 0.2);
  color: hsl(var(--foreground));
}

@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;
  }
}