:root {
  --background: 220 33% 98%;
  --foreground: 225 34% 14%;
  --primary: 258 86% 56%;
  --primary-foreground: 0 0% 100%;
  --secondary: 184 78% 42%;
  --secondary-foreground: 0 0% 100%;
  --muted: 225 20% 92%;
  --muted-foreground: 225 12% 42%;
  --destructive: 0 76% 56%;
  --destructive-foreground: 0 0% 100%;
  --border: 225 18% 84%;
  --card: 0 0% 100%;
  --accent: 36 95% 57%;
  --radius-sm: 0.5rem;
  --radius-md: 0.9rem;
  --radius-lg: 1.4rem;
  --shadow-sm: 0 8px 20px hsl(225 34% 14% / 0.08);
  --shadow-md: 0 18px 48px hsl(225 34% 14% / 0.12);
  --shadow-lg: 0 28px 80px hsl(258 86% 56% / 0.18);
  --transition-fast: 160ms ease;
  --transition-smooth: 280ms cubic-bezier(.2,.8,.2,1);
}
.dark {
  --background: 225 34% 9%;
  --foreground: 220 28% 96%;
  --primary: 263 90% 68%;
  --primary-foreground: 225 34% 9%;
  --secondary: 184 76% 54%;
  --secondary-foreground: 225 34% 9%;
  --muted: 225 22% 17%;
  --muted-foreground: 222 14% 70%;
  --destructive: 0 82% 64%;
  --destructive-foreground: 0 0% 100%;
  --border: 225 18% 25%;
  --card: 225 30% 13%;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at top left, hsl(var(--primary) / 0.18), transparent 32rem),
    radial-gradient(circle at 85% 12%, hsl(var(--secondary) / 0.16), transparent 28rem),
    hsl(var(--background));
  color: hsl(var(--foreground));
}
button, a, input { transition: var(--transition-smooth); }
input, textarea, select { font-size: max(16px, 1rem); }
.glass {
  background: hsl(var(--card) / 0.78);
  border: 1px solid hsl(var(--border) / 0.82);
  box-shadow: var(--shadow-md);
  backdrop-filter: blur(18px);
}
.focus-ring:focus { outline: 3px solid hsl(var(--primary) / 0.28); outline-offset: 2px; }
.safe-bottom { padding-bottom: calc(0.75rem + env(safe-area-inset-bottom)); }