:root {
  --background: 220 27% 98%;
  --foreground: 228 28% 14%;
  --primary: 266 88% 63%;
  --secondary: 189 91% 48%;
  --muted: 220 18% 94%;
  --destructive: 0 72% 56%;
  --border: 225 24% 86%;
  --card: 0 0% 100%;
  --shadow-sm: 0 10px 30px rgba(15, 23, 42, 0.06);
  --shadow-md: 0 18px 40px rgba(76, 29, 149, 0.12);
  --shadow-lg: 0 30px 80px rgba(15, 23, 42, 0.16);
  --transition-fast: 180ms ease;
  --transition-smooth: 320ms cubic-bezier(0.22, 1, 0.36, 1);
  --radius-sm: 0.75rem;
  --radius-md: 1.1rem;
  --radius-lg: 1.75rem;
}

.dark {
  --background: 228 30% 8%;
  --foreground: 210 40% 98%;
  --primary: 271 92% 68%;
  --secondary: 189 93% 56%;
  --muted: 227 20% 16%;
  --destructive: 0 75% 60%;
  --border: 228 19% 20%;
  --card: 228 22% 11%;
  --shadow-sm: 0 12px 30px rgba(2, 6, 23, 0.34);
  --shadow-md: 0 20px 50px rgba(91, 33, 182, 0.24);
  --shadow-lg: 0 35px 90px rgba(2, 6, 23, 0.52);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, sans-serif;
  background: hsl(var(--background));
  color: hsl(var(--foreground));
}

button,
a,
input,
textarea {
  transition: all var(--transition-fast);
}

::selection {
  background: hsl(var(--primary) / 0.24);
  color: hsl(var(--foreground));
}

input,
textarea,
button {
  font: inherit;
}

textarea {
  resize: vertical;
}

.bg-grid {
  background-image: linear-gradient(hsl(var(--border)) 1px, transparent 1px), linear-gradient(90deg, hsl(var(--border)) 1px, transparent 1px);
  background-size: 28px 28px;
}