Briven/apps/studio/pages/404.tsx

import { NextPage } from 'next'
import { useTheme } from 'next-themes'
import Image from 'next/legacy/image'
import Link from 'next/link'
import { useEffect, useState } from 'react'
import { Button } from 'ui'

import { BASE_PATH } from '@/lib/constants'

const Error404: NextPage = ({}) => {
  const { resolvedTheme } = useTheme()
  const [show404, setShow404] = useState<boolean>(false)

  useEffect(() => {
    setTimeout(() => {
      setShow404(true)
    }, 500)
  }, [])

  return (
    <div className="relative mx-auto flex h-screen w-full flex-col items-center justify-center">
      <div className="absolute top-0 mx-auto w-full max-w-7xl px-8 pt-6 sm:px-6 lg:px-8">
        <nav className="relative flex items-center justify-between sm:h-10">
          <div className="flex shrink-0 grow items-center lg:grow-0">
            <div className="flex w-full items-center justify-between md:w-auto">
              <Link href="/projects">
                <Image
                  src={
                    resolvedTheme?.includes('dark')
                      ? `${BASE_PATH}/img/briven-dark.svg`
                      : `${BASE_PATH}/img/briven-light.svg`
                  }
                  alt="briven"
                  height={24}
                  width={120}
                />
              </Link>
            </div>
          </div>
        </nav>
      </div>
      <div
        className={`absolute select-none opacity-5 filter transition duration-200 ${
          show404 ? 'blur-xs' : 'blur-none'
        }`}
      >
        <h1 style={{ fontSize: '28rem' }}>404</h1>
      </div>
      <div
        className={`flex flex-col items-center justify-center space-y-6 transition ${
          show404 ? 'opacity-100' : 'opacity-0'
        }`}
      >
        <div className="flex w-[380px] flex-col items-center justify-center space-y-3 text-center">
          <h3 className="text-xl">Looking for something? 🔍</h3>
          <p className="text-foreground-light">
            We couldn't find the page that you're looking for!
          </p>
        </div>
        <div className="flex items-center space-x-4">
          <Button asChild size="small">
            <Link href="/projects">Head back</Link>
          </Button>
        </div>
      </div>
    </div>
  )
}

export default Error404