:root {
  --background: 220 33% 98%;
  --foreground: 222 34% 14%;
  --primary: 253 76% 58%;
  --secondary: 168 72% 39%;
  --muted: 220 24% 93%;
  --destructive: 0 76% 56%;
  --border: 220 19% 85%;
  --card: 0 0% 100%;

  --shadow-sm: 0 6px 18px hsl(222 34% 14% / 0.06);
  --shadow-md: 0 18px 40px hsl(246 50% 20% / 0.14);
  --shadow-lg: 0 28px 70px hsl(246 50% 20% / 0.2);

  --transition-fast: 160ms ease;
  --transition-smooth: 280ms cubic-bezier(0.22, 1, 0.36, 1);

  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
}

.dark {
  --background: 226 29% 10%;
  --foreground: 210 20% 96%;
  --primary: 258 83% 69%;
  --secondary: 168 67% 46%;
  --muted: 225 24% 16%;
  --destructive: 0 79% 63%;
  --border: 223 19% 24%;
  --card: 224 26% 13%;

  --shadow-sm: 0 8px 18px hsl(220 40% 2% / 0.26);
  --shadow-md: 0 18px 42px hsl(220 40% 2% / 0.35);
  --shadow-lg: 0 28px 72px hsl(220 40% 2% / 0.45);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

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

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

button:focus-visible,
a:focus-visible,
select:focus-visible,
input:focus-visible {
  outline: 2px solid hsl(var(--primary));
  outline-offset: 2px;
}

::selection {
  background: hsl(var(--primary) / 0.22);
}