:root {
  --background: 0 0% 4%;
  --foreground: 0 0% 98%;
  --primary: 211 100% 60%;
  --secondary: 271 95% 67%;
  --muted: 0 0% 11%;
  --destructive: 0 78% 61%;
  --border: 0 0% 100% / 0.12;
  --card: 220 18% 10%;
  --shadow-sm: 0 4px 14px rgba(0, 0, 0, 0.18);
  --shadow-md: 0 10px 30px rgba(0, 0, 0, 0.28);
  --shadow-lg: 0 20px 50px rgba(0, 0, 0, 0.42);
  --transition-fast: 180ms ease;
  --transition-smooth: 320ms cubic-bezier(0.22, 1, 0.36, 1);
  --radius-sm: 0.75rem;
  --radius-md: 1rem;
  --radius-lg: 1.5rem;
  --muted-foreground: 220 10% 70%;
}

.dark {
  --background: 0 0% 4%;
  --foreground: 0 0% 98%;
  --primary: 211 100% 60%;
  --secondary: 271 95% 67%;
  --muted: 0 0% 11%;
  --destructive: 0 78% 61%;
  --border: 0 0% 100% / 0.12;
  --card: 220 18% 10%;
}

html {
  scroll-behavior: smooth;
}

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

* {
  box-sizing: border-box;
}

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

.glass {
  background: hsl(var(--card) / 0.55);
  border: 1px solid hsl(var(--border));
  backdrop-filter: blur(22px);
}

.text-gradient {
  background: linear-gradient(135deg, hsl(var(--primary)), hsl(var(--secondary)));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

button,
a {
  transition: all var(--transition-fast);
}

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

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

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

::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, hsl(var(--primary) / 0.65), hsl(var(--secondary) / 0.65));
  border-radius: 999px;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation: none !important;
    transition: none !important;
    scroll-behavior: auto !important;
  }
}