frontend/src/index.css

@tailwind base;
@tailwind components;
@tailwind utilities;

@layer utilities {
  .glass {
    @apply bg-white/10 backdrop-blur-lg border border-white/20 shadow-xl;
  }
}

body {
  margin: 0;
  background-color: #0f172a; /* Slate 900 */
  color: #f8fafc; /* Slate 50 */
  font-family: 'Inter', system-ui, Avenir, Helvetica, Arial, sans-serif;
  overflow: hidden; /* For full screen 3D viewer */
}