:root {
  --background: 216 46% 97%;
  --foreground: 222 47% 11%;
  --primary: 248 85% 58%;
  --primary-foreground: 0 0% 100%;
  --secondary: 183 85% 42%;
  --secondary-foreground: 222 47% 11%;
  --muted: 220 18% 88%;
  --muted-foreground: 219 13% 43%;
  --destructive: 0 74% 55%;
  --destructive-foreground: 0 0% 100%;
  --border: 220 18% 82%;
  --card: 0 0% 100%;
  --card-foreground: 222 47% 11%;
  --shadow-sm: 0 6px 18px rgba(32, 38, 71, 0.08);
  --shadow-md: 0 14px 40px rgba(32, 38, 71, 0.13);
  --shadow-lg: 0 24px 70px rgba(32, 38, 71, 0.18);
  --transition-fast: 160ms ease;
  --transition-smooth: 260ms cubic-bezier(.2,.8,.2,1);
  --radius-sm: 12px;
  --radius-md: 18px;
  --radius-lg: 28px;
}

.dark {
  --background: 225 39% 8%;
  --foreground: 220 35% 96%;
  --primary: 252 95% 70%;
  --primary-foreground: 225 39% 8%;
  --secondary: 181 90% 48%;
  --secondary-foreground: 225 39% 8%;
  --muted: 224 25% 18%;
  --muted-foreground: 220 18% 72%;
  --destructive: 0 80% 62%;
  --destructive-foreground: 0 0% 100%;
  --border: 224 22% 24%;
  --card: 225 32% 12%;
  --card-foreground: 220 35% 96%;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at top left, hsl(var(--secondary) / 0.18), transparent 34rem),
    radial-gradient(circle at top right, hsl(var(--primary) / 0.18), transparent 32rem),
    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, select { transition: var(--transition-smooth); }
input, select, textarea { font-size: max(16px, 1rem); }
.safe-bottom { padding-bottom: calc(88px + env(safe-area-inset-bottom)); }
.glass {
  background: hsl(var(--card) / 0.82);
  backdrop-filter: blur(18px);
  border: 1px solid hsl(var(--border) / 0.75);
  box-shadow: var(--shadow-md);
}
.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)); }