:root {
  --background: 43 54% 97%;
  --foreground: 213 38% 16%;
  --primary: 198 76% 32%;
  --primary-foreground: 0 0% 100%;
  --secondary: 24 88% 58%;
  --secondary-foreground: 30 42% 12%;
  --muted: 194 31% 89%;
  --muted-foreground: 210 18% 42%;
  --destructive: 2 72% 48%;
  --destructive-foreground: 0 0% 100%;
  --border: 200 24% 80%;
  --card: 0 0% 100%;
  --shadow-sm: 0 2px 10px rgba(22, 92, 123, 0.08);
  --shadow-md: 0 12px 30px rgba(22, 92, 123, 0.14);
  --shadow-lg: 0 22px 60px rgba(22, 92, 123, 0.18);
  --transition-fast: 150ms ease;
  --transition-smooth: 260ms cubic-bezier(.2,.8,.2,1);
  --radius-sm: 10px;
  --radius-md: 18px;
  --radius-lg: 28px;
}
.dark {
  --background: 212 31% 10%;
  --foreground: 42 48% 94%;
  --primary: 192 78% 58%;
  --primary-foreground: 212 31% 10%;
  --secondary: 24 88% 62%;
  --secondary-foreground: 30 42% 12%;
  --muted: 209 25% 18%;
  --muted-foreground: 201 21% 74%;
  --destructive: 1 69% 56%;
  --destructive-foreground: 0 0% 100%;
  --border: 205 22% 28%;
  --card: 211 30% 14%;
}
* { 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;
}
button, a, input, select, textarea { -webkit-tap-highlight-color: transparent; }
input, select, textarea { font-size: max(16px, 1rem); }
.safe-bottom { padding-bottom: calc(88px + env(safe-area-inset-bottom)); }
.card-shadow { box-shadow: var(--shadow-sm); }
.card-shadow:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }
.focus-ring:focus-visible { outline: 3px solid hsl(var(--secondary)); outline-offset: 3px; }
.bg-1 { background: hsl(var(--background)); }
.bg-2 { background: hsl(var(--card)); }
.bg-3 { background: hsl(var(--muted)); }
.bg-4 { background: linear-gradient(135deg, hsl(var(--primary)), hsl(176 58% 36%)); }
.text-primary { color: hsl(var(--foreground)); }
.text-secondary { color: hsl(var(--muted-foreground)); }
.text-tertiary { color: hsl(var(--primary)); }
.accent { color: hsl(var(--secondary)); }