next-app/app/components/topic_card.tsx

import { PlayIcon } from '@heroicons/react/24/outline'
const TopicCard = ({ title, children, link }) => {
  return(
    <div className="mx-auto mt-16 max-w-2xl rounded-3xl sm:mt-20 lg:mx-0 lg:flex lg:max-w-none relative isolate overflow-hidden bg-gray-900 px-6 pt-16 shadow-2xl sm:rounded-3xl sm:px-16 md:pt-24 lg:flex lg:gap-x-20 lg:px-24 lg:pt-0" style={{marginTop: '20px', paddingTop: '0px', paddingBottom: '24px'}}>
    <svg
        viewBox="0 0 1024 1024"
        className="absolute left-1/2 top-1/2 -z-10 h-[64rem] w-[64rem] -translate-y-1/2 [mask-image:radial-gradient(closest-side,white,transparent)] sm:left-full sm:-ml-80 lg:left-1/2 lg:ml-0 lg:-translate-x-1/2 lg:translate-y-0"
        aria-hidden="true"
      >
        <circle cx={512} cy={512} r={512} fill="url(#759c1415-0410-454c-8f7c-9a820de03641)" fillOpacity="0.7" />
        <defs>
          <radialGradient id="759c1415-0410-454c-8f7c-9a820de03641">
            <stop stopColor="#7775D6" />
            <stop offset={1} stopColor="#E935C1" />
          </radialGradient>
        </defs>
      </svg>
      <div className="p-8 sm:p-10 lg:flex-auto ">
        <h3 className="text-2xl font-bold tracking-tight text-gray-200">{title}</h3>
        <p className="mt-6 text-base leading-7 text-gray-200">
          {children} 
        </p>
      </div>
      <div className="-mt-2 p-2 lg:mt-0 lg:max-w-md lg:flex-shrink-0 lg:flex lg:flex-col lg:justify-center">
            <a
              href={link}
              className="mt-10 block w-full rounded-md bg-blue-500 text-center text-sm font-semibold text-white shadow-sm hover:bg-indigo-500 focus-visible:outline focus-visible:outline-2 focus-visible:outline-offset-2 focus-visible:outline-indigo-600"
              style={{paddingLeft: '50px', paddingRight: '50px', paddingTop: '20px', paddingBottom: '20px'}}
            >
              <PlayIcon className="text-white"/>
              Begin
            </a>
      </div>
    </div>
  )
}

export default TopicCard;