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  <!-- Simulate page content to demonstrate button functionality -->
  <div class="container mx-auto px-4 py-12">
    <h1 class="text-4xl md:text-5xl font-bold mb-8 text-gray-900 dark:text-gray-100 leading-tight">Welcome to Our Learning Platform</h1>
    
    <p class="mb-6 text-lg text-gray-700 dark:text-gray-300 leading-relaxed">
      Explore a world of knowledge and expand your horizons. Our courses are designed to be engaging, informative, and accessible to everyone. Dive deep into subjects that ignite your curiosity and empower your future.
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        <h3 class="text-xl font-semibold mb-2 text-gray-900 dark:text-gray-100">Fundamentals of Web Development</h3>
        <p class="text-gray-600 dark:text-gray-400 text-sm">Learn the basics of HTML, CSS, and JavaScript to build your first website.</p>
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        <h3 class="text-xl font-semibold mb-2 text-gray-900 dark:text-gray-100">Introduction to Data Science</h3>
        <p class="text-gray-600 dark:text-gray-400 text-sm">Discover the power of data analysis and machine learning with practical examples.</p>
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        <h3 class="text-xl font-semibold mb-2 text-gray-900 dark:text-gray-100">Creative Writing Workshop</h3>
        <p class="text-gray-600 dark:text-gray-400 text-sm">Unleash your inner storyteller and master the art of compelling narratives.</p>
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      <h2 class="text-3xl font-bold mb-4 border-b pb-2 border-gray-300 dark:border-gray-600 text-gray-900 dark:text-gray-100">Deep Dive into Learning</h2>
      <p>Our platform offers a diverse range of courses, from technology to arts, designed to foster continuous learning. We believe that education should be accessible and enjoyable. Each lesson is crafted by experts in their field, ensuring you receive high-quality, up-to-date information.</p>
      <p>Gain practical skills through hands-on exercises and real-world projects. Connect with a vibrant community of learners and educators. Share insights, ask questions, and collaborate on exciting new ideas. Education is a journey, and we're here to guide you every step of the way.</p>
      <p>Whether you're a beginner looking to pick up a new skill or an experienced professional aiming to refine your expertise, our comprehensive curriculum has something for everyone. Embrace the future of learning with us.</p>
      
      <ul class="list-disc list-inside space-y-2 mt-6">
        <li>Interactive lessons and quizzes</li>
        <li>Downloadable resources and guides</li>
        <li>Expert-led video tutorials</li>
        <li>Student discussion forums</li>
        <li>Certificate of completion</li>
      </ul>
      
      <p class="mt-6 italic text-gray-600 dark:text-gray-400">“The more that you read, the more things you will know. The more that you learn, the more places you'll go.” – Dr. Seuss</p>
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      Scroll down further to see the button appear!
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     For a true Tailwind-only solution without global CSS, one would typically use 
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        <!-- Small decorative dot overlay (Memphis style) -->
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           focus:outline-none focus:ring-4 focus:ring-amber-500/50 dark:focus:ring-amber-300/50
           transition-all duration-150 ease-in-out
           flex items-center justify-center space-x-2 w-16 h-16 sm:w-20 sm:h-20"
    aria-label="Back to top"
  >
    <svg class="w-8 h-8 sm:w-10 sm:h-10 transform -rotate-90" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg">
      <path stroke-linecap="square" stroke-linejoin="square" stroke-width="3" d="M9 5l7 7-7 7"></path>
    </svg>
  </button>
  <div class="absolute -top-1 -left-1 w-16 h-16 sm:w-20 sm:h-20 border-2 border-stone-900 dark:border-stone-100 pointer-events-none group-active:translate-x-[4px] group-active:translate-y-[4px] transition-all duration-150 ease-in-out"></div>
  <div class="absolute top-1 left-1 w-16 h-16 sm:w-20 sm:h-20 border-2 border-stone-900 dark:border-stone-100 pointer-events-none group-active:translate-x-[4px] group-active:translate-y-[4px] transition-all duration-150 ease-in-out"></div>
</div>
              

                <div class="fixed bottom-4 right-4 z-50">
  <button aria-label="Scroll to top" class="dark:bg-gray-700 dark:hover:bg-gray-600 dark:text-gray-200 dark:shadow-lg focus:outline-none dark:focus:ring-gray-500 rounded-full bg-gray-800 p-3 text-white shadow-md transition-all duration-300 ease-in-out hover:scale-105 hover:bg-gray-700 focus:ring-4 focus:ring-gray-300 active:scale-95 md:p-4 lg:p-5">
    <svg class="h-6 w-6 md:h-7 md:w-7 lg:h-8 lg:w-8" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg">
      <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M5 10l7-7m0 0l7 7m-7-7v18"></path>
    </svg>
  </button>
</div>
              

                <div class="flex items-center justify-center min-h-screen bg-gray-100 dark:bg-gray-900">
  <a href="#" class="back-to-top-button relative p-4 rounded-full shadow-neumorphic-light dark:shadow-neumorphic-dark flex items-center justify-center transition-all duration-300 hover:shadow-neumorphic-light-hover dark:hover:shadow-neumorphic-dark-hover"
    aria-label="Back to top">
    <svg class="w-6 h-6 text-indigo-600 dark:text-purple-400" fill="none" stroke="currentColor" viewBox="0 0 24 24"
      xmlns="http://www.w3.org/2000/svg">
      <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M5 10l7-7m0 0l7 7m-7-7v18"></path>
    </svg>
  </a>
</div>

<style>
  .shadow-neumorphic-light {
    box-shadow: 8px 8px 16px #cbced1, -8px -8px 16px #ffffff;
  }

  .dark .shadow-neumorphic-dark {
    box-shadow: 8px 8px 16px #1a1a1a, -8px -8px 16px #2e2e2e;
  }

  .shadow-neumorphic-light-hover {
    box-shadow: inset 6px 6px 12px #cbced1, inset -6px -6px 12px #ffffff;
  }

  .dark .shadow-neumorphic-dark-hover {
    box-shadow: inset 6px 6px 12px #1a1a1a, inset -6px -6px 12px #2e2e2e;
  }
</style>