frontend/src/app/globals.css

@import "tailwindcss";

:root {
  --background: #ffffff;
  --foreground: #171717;
}

@theme inline {
  --color-background: var(--background);
  --color-foreground: var(--foreground);
  --font-sans: var(--font-geist-sans);
  --font-mono: var(--font-geist-mono);
}

@media (prefers-color-scheme: dark) {
  :root {
    --background: #0a0a0a;
    --foreground: #ededed;
  }
}

body {
  background: var(--background);
  color: var(--foreground);
  font-family: Arial, Helvetica, sans-serif;
}

.btn {
  @apply bg-blue-600 text-white px-4 py-2 rounded;
}

.btn2 {
  @apply bg-green-600 text-white px-4 py-2 rounded;
}

.btn3 {
  @apply bg-purple-700 text-white px-6 py-3 rounded text-lg;
}

.card {
  @apply bg-white p-4 rounded shadow space-y-2;
}

.area {
  @apply w-full h-40 border p-2;
}