bioai-platform/frontend/src/app/layout.tsx

import type { Metadata } from 'next';
import { Space_Grotesk, Inter, JetBrains_Mono } from 'next/font/google';
import './globals.css';
import { Toaster } from 'react-hot-toast';
import { Providers } from './providers';

const spaceGrotesk = Space_Grotesk({
  subsets: ['latin'],
  variable: '--font-display',
  display: 'swap',
});

const inter = Inter({
  subsets: ['latin'],
  variable: '--font-sans',
  display: 'swap',
});

const jetbrainsMono = JetBrains_Mono({
  subsets: ['latin'],
  variable: '--font-mono',
  display: 'swap',
});

export const metadata: Metadata = {
  title: 'Bio Nexus — One interface for every bioinformatics tool',
  description: 'Protein sequence analysis, BLAST, UniProt, AlphaFold, docking — all in one place. Built for researchers who aren\'t bioinformaticians.',
};

export default function RootLayout({
  children,
}: {
  children: React.ReactNode;
}) {
  return (
    <html lang="en" className={`${spaceGrotesk.variable} ${inter.variable} ${jetbrainsMono.variable}`}>
      <body className="font-sans antialiased">
        <Providers>
          {children}
        </Providers>
        <Toaster position="bottom-right" />
      </body>
    </html>
  );
}