:root {
  --background: 32 33% 97%;
  --foreground: 230 20% 14%;
  --primary: 267 84% 58%;
  --secondary: 18 92% 58%;
  --muted: 225 18% 92%;
  --destructive: 2 78% 56%;
  --border: 228 16% 84%;
  --card: 0 0% 100%;
  --shadow-sm: 0 8px 20px hsla(260, 50%, 20%, 0.08);
  --shadow-md: 0 18px 42px hsla(260, 50%, 20%, 0.14);
  --shadow-lg: 0 28px 70px hsla(260, 50%, 18%, 0.2);
  --transition-fast: 160ms ease;
  --transition-smooth: 320ms cubic-bezier(0.22, 1, 0.36, 1);
  --radius-sm: 0.75rem;
  --radius-md: 1.1rem;
  --radius-lg: 1.6rem;
}

.dark {
  --background: 235 30% 9%;
  --foreground: 40 33% 96%;
  --primary: 272 86% 66%;
  --secondary: 22 95% 62%;
  --muted: 236 18% 17%;
  --destructive: 5 80% 62%;
  --border: 236 16% 24%;
  --card: 236 22% 12%;
  --shadow-sm: 0 10px 22px hsla(240, 50%, 2%, 0.28);
  --shadow-md: 0 18px 48px hsla(240, 50%, 2%, 0.4);
  --shadow-lg: 0 28px 78px hsla(240, 50%, 2%, 0.55);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  background: hsl(var(--background));
  color: hsl(var(--foreground));
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  transition: background-color var(--transition-smooth), color var(--transition-smooth);
}

::selection {
  background: hsl(var(--primary) / 0.25);
}

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

input::placeholder,
textarea::placeholder {
  color: hsl(var(--foreground) / 0.42);
}

pre {
  margin: 0;
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
}

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

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

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

::-webkit-scrollbar-thumb:hover {
  background: hsl(var(--primary) / 0.45);
}