markedit / frontend / src / components / layout / Header.tsx

import { useCurrentUser, useLogout } from '../../lib/hooks/useAuth';
import { Button } from '../ui/button';

export function Header() {
  const { data: user } = useCurrentUser();
  const logout = useLogout();

  return (
    <header className="border-b border-gray-200 bg-white">
      <div className="container mx-auto px-6 py-4 flex items-center justify-between">
        <div className="flex items-center gap-8">
          <h1 className="text-2xl font-bold" style={{ fontFamily: 'Archivo Black, sans-serif' }}>
            MarkEdit
          </h1>
        </div>

        {user && (
          <div className="flex items-center gap-4">
            <div className="flex items-center gap-3">
              {user.avatar_url && (
                <img
                  src={user.avatar_url}
                  alt={user.username}
                  className="w-8 h-8 rounded-full"
                />
              )}
              <span className="text-sm font-medium text-gray-700">{user.username}</span>
            </div>
            <Button
              variant="ghost"
              size="sm"
              onClick={() => logout.mutate()}
              disabled={logout.isPending}
            >
              {logout.isPending ? 'Logging out...' : 'Logout'}
            </Button>
          </div>
        )}
      </div>
    </header>
  );
}