:root {
  --background: 220 43% 97%;
  --foreground: 224 34% 14%;
  --primary: 218 88% 55%;
  --primary-foreground: 0 0% 100%;
  --secondary: 158 72% 42%;
  --secondary-foreground: 0 0% 100%;
  --muted: 221 28% 91%;
  --muted-foreground: 224 14% 44%;
  --destructive: 0 78% 58%;
  --destructive-foreground: 0 0% 100%;
  --border: 220 24% 86%;
  --card: 0 0% 100%;
  --purple: 262 84% 61%;
  --orange: 28 92% 56%;
  --success: 151 72% 40%;
  --warning: 38 92% 52%;
  --shadow-sm: 0 4px 12px rgba(21, 31, 54, 0.06);
  --shadow-md: 0 14px 35px rgba(21, 31, 54, 0.10);
  --shadow-lg: 0 24px 70px rgba(21, 31, 54, 0.16);
  --transition-fast: 160ms ease;
  --transition-smooth: 260ms cubic-bezier(.2,.8,.2,1);
  --radius-sm: 0.65rem;
  --radius-md: 1rem;
  --radius-lg: 1.45rem;
}

.dark {
  --background: 224 34% 9%;
  --foreground: 220 42% 96%;
  --primary: 214 95% 63%;
  --primary-foreground: 224 34% 9%;
  --secondary: 158 68% 48%;
  --secondary-foreground: 224 34% 9%;
  --muted: 224 25% 17%;
  --muted-foreground: 220 16% 72%;
  --destructive: 0 76% 62%;
  --destructive-foreground: 0 0% 100%;
  --border: 224 22% 22%;
  --card: 224 30% 13%;
  --purple: 263 88% 70%;
  --orange: 30 96% 61%;
  --success: 151 70% 48%;
  --warning: 40 95% 58%;
  --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.22);
  --shadow-md: 0 14px 35px rgba(0, 0, 0, 0.30);
  --shadow-lg: 0 24px 70px rgba(0, 0, 0, 0.42);
}

* { 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 bottom right, hsl(var(--purple) / 0.14), transparent 32rem),
    hsl(var(--background));
  color: hsl(var(--foreground));
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

a { color: inherit; text-decoration: none; }
button, input, select { font: inherit; }

.card {
  background: hsl(var(--card));
  border: 1px solid hsl(var(--border));
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.glass-card {
  background: hsl(var(--card) / 0.78);
  border: 1px solid hsl(var(--border));
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  backdrop-filter: blur(18px);
}

.focus-ring:focus {
  outline: 3px solid hsl(var(--primary) / 0.28);
  outline-offset: 2px;
}

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: hsl(var(--muted)); }
::-webkit-scrollbar-thumb { background: hsl(var(--primary) / 0.38); border-radius: 999px; }

.skeleton {
  background: linear-gradient(90deg, hsl(var(--muted)), hsl(var(--card)), hsl(var(--muted)));
  background-size: 200% 100%;
  animation: shimmer 1.15s infinite linear;
}

@keyframes shimmer {
  from { background-position: 200% 0; }
  to { background-position: -200% 0; }
}

@keyframes floatIn {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

.animate-float-in { animation: floatIn var(--transition-smooth) both; }