website/components/element-navigation-menu.tsx

"use client";

import * as React from "react";
import Link from "next/link";

import {
  NavigationMenu,
  NavigationMenuContent,
  NavigationMenuItem,
  NavigationMenuLink,
  NavigationMenuList,
  NavigationMenuTrigger,
} from "@/components/ui/navigation-menu";

export function MyNavigationMenu() {
  return (
    <NavigationMenu viewport={false} className="bg-transparent px-2">
      <NavigationMenuList className="bg-transparent">
        <NavigationMenuItem className="bg-transparent">
          <NavigationMenuTrigger className="bg-transparent px-2">
            Navigation
          </NavigationMenuTrigger>
          <NavigationMenuContent className="bg-transparent absolute w-[200px]">
            <ul className="grid gap-2 md:w-[400px] lg:w-[500px] lg:grid-cols-[.75fr_1fr] ">
              <li className="row-span-3">
                <NavigationMenuLink asChild>
                  <Link
                    className="from-muted/50 to-muted flex h-full w-full flex-col justify-end rounded-md bg-linear-to-b p-6 no-underline outline-hidden select-none focus:shadow-md"
                    href="/">
                    <div className="mt-4 mb-2 text-lg font-medium">
                      Portfolio Page
                    </div>
                    <p className="text-muted-foreground text-sm leading-tight">
                      Steffen Illium
                    </p>
                  </Link>
                </NavigationMenuLink>
              </li>
              <ListItem href="/research" title="Research">
                Read through my research work.
              </ListItem>
              <ListItem href="/publications" title="Publications">
                Find and cite my publications.
              </ListItem>
              <ListItem href="/experience" title="Experience">
                Review my experience.
              </ListItem>
            </ul>
          </NavigationMenuContent>
        </NavigationMenuItem>
      </NavigationMenuList>
    </NavigationMenu>
  );
}

function ListItem({
  title,
  children,
  href,
  ...props
}: React.ComponentPropsWithoutRef<"li"> & { href: string }) {
  return (
    <li {...props}>
      <NavigationMenuLink asChild>
        <Link href={href}>
          <div className="text-sm leading-none font-medium">{title}</div>
          <p className="text-muted-foreground line-clamp-2 text-sm leading-snug">
            {children}
          </p>
        </Link>
      </NavigationMenuLink>
    </li>
  );
}