:root {
  --background: 220 45% 98%;
  --foreground: 224 38% 12%;
  --primary: 258 86% 58%;
  --primary-foreground: 0 0% 100%;
  --secondary: 187 77% 45%;
  --secondary-foreground: 0 0% 100%;
  --muted: 223 20% 92%;
  --muted-foreground: 224 12% 42%;
  --destructive: 354 78% 56%;
  --destructive-foreground: 0 0% 100%;
  --border: 224 23% 86%;
  --card: 0 0% 100%;
  --card-foreground: 224 38% 12%;
  --shadow-sm: 0 6px 18px hsl(224 38% 12% / 0.08);
  --shadow-md: 0 14px 38px hsl(224 38% 12% / 0.12);
  --shadow-lg: 0 28px 80px hsl(258 86% 35% / 0.2);
  --transition-fast: 160ms ease;
  --transition-smooth: 260ms cubic-bezier(.2,.8,.2,1);
  --radius-sm: 0.75rem;
  --radius-md: 1rem;
  --radius-lg: 1.5rem;
}

.dark {
  --background: 229 34% 8%;
  --foreground: 220 42% 96%;
  --primary: 263 90% 68%;
  --primary-foreground: 229 34% 8%;
  --secondary: 184 76% 52%;
  --secondary-foreground: 229 34% 8%;
  --muted: 229 24% 16%;
  --muted-foreground: 222 16% 72%;
  --destructive: 354 82% 64%;
  --destructive-foreground: 0 0% 100%;
  --border: 229 20% 24%;
  --card: 229 28% 12%;
  --card-foreground: 220 42% 96%;
  --shadow-sm: 0 6px 18px hsl(0 0% 0% / 0.28);
  --shadow-md: 0 14px 38px hsl(0 0% 0% / 0.34);
  --shadow-lg: 0 28px 80px hsl(263 90% 40% / 0.28);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at top left, hsl(var(--primary) / 0.16), transparent 34rem),
    radial-gradient(circle at top right, hsl(var(--secondary) / 0.16), transparent 30rem),
    hsl(var(--background));
  color: hsl(var(--foreground));
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}
button, a, input, textarea, select { transition: var(--transition-smooth); }
input, textarea, select { font-size: max(16px, 1rem); }
button, a[role="button"] { min-height: 44px; }
.focus-ring:focus-visible {
  outline: 3px solid hsl(var(--primary) / 0.35);
  outline-offset: 3px;
}
.glass {
  background: hsl(var(--card) / 0.76);
  backdrop-filter: blur(18px);
  border: 1px solid hsl(var(--border));
}
.safe-bottom { padding-bottom: calc(0.75rem + env(safe-area-inset-bottom)); }
.safe-top { padding-top: env(safe-area-inset-top); }
.bg-1 { background-color: hsl(var(--background)); }
.bg-2 { background-color: hsl(var(--card)); }
.bg-3 { background-color: hsl(var(--muted)); }
.bg-4 { background-color: hsl(var(--primary) / 0.1); }
.text-primary { color: hsl(var(--foreground)); }
.text-secondary { color: hsl(var(--muted-foreground)); }
.text-tertiary { color: hsl(var(--foreground) / 0.62); }
.accent { color: hsl(var(--primary)); }