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import React from 'react';
import { Link } from 'react-router-dom';
import { createPageUrl } from '@/utils';
import { motion } from 'framer-motion';
import { Brain, Eye, Smile, Activity, Sparkles, Rocket, ChevronRight } from 'lucide-react';
import { Button } from '@/components/ui/button';

const FloatingIcon = ({ children, delay = 0, className = "" }) => (
  <motion.div

    className={className}

    animate={{

      y: [0, -10, 0],

      rotate: [0, 5, -5, 0],

    }}

    transition={{

      duration: 4,

      repeat: Infinity,

      delay,

      ease: "easeInOut"

    }}

  >

    {children}

  </motion.div>
);

const TopicCard = ({ icon: Icon, title, description, color, delay, href }) => (
  <motion.div

    initial={{ opacity: 0, y: 50 }}

    whileInView={{ opacity: 1, y: 0 }}

    viewport={{ once: true }}

    transition={{ duration: 0.6, delay }}

  >

    <Link to={href}>

      <motion.div

        whileHover={{ scale: 1.03, y: -5 }}

        whileTap={{ scale: 0.98 }}

        className={`relative overflow-hidden rounded-3xl p-8 cursor-pointer group h-full

          bg-gradient-to-br ${color} backdrop-blur-xl border border-white/20 shadow-2xl`}

      >

        <div className="absolute top-0 right-0 w-32 h-32 bg-white/10 rounded-full -translate-y-1/2 translate-x-1/2" />

        <div className="absolute bottom-0 left-0 w-24 h-24 bg-white/5 rounded-full translate-y-1/2 -translate-x-1/2" />

        

        <motion.div 

          className="relative z-10"

          whileHover={{ rotate: [0, -10, 10, 0] }}

          transition={{ duration: 0.5 }}

        >

          <div className="w-16 h-16 rounded-2xl bg-white/20 flex items-center justify-center mb-6 group-hover:bg-white/30 transition-colors">

            <Icon className="w-8 h-8 text-white" />

          </div>

        </motion.div>

        

        <h3 className="text-2xl font-bold text-white mb-3">{title}</h3>

        <p className="text-white/80 text-lg leading-relaxed">{description}</p>

        

        <div className="mt-6 flex items-center gap-2 text-white/90 font-medium group-hover:text-white transition-colors">

          <span>Start Learning</span>

          <ChevronRight className="w-5 h-5 group-hover:translate-x-1 transition-transform" />

        </div>

      </motion.div>

    </Link>

  </motion.div>
);

export default function Home() {
  return (
    <div className="min-h-screen bg-gradient-to-br from-slate-900 via-purple-900 to-slate-900">

      {/* Animated Background */}

      <div className="fixed inset-0 overflow-hidden pointer-events-none">

        <div className="absolute top-20 left-10 w-72 h-72 bg-blue-500/20 rounded-full blur-3xl animate-pulse" />

        <div className="absolute bottom-20 right-10 w-96 h-96 bg-purple-500/20 rounded-full blur-3xl animate-pulse" style={{ animationDelay: '1s' }} />

        <div className="absolute top-1/2 left-1/2 w-64 h-64 bg-cyan-500/10 rounded-full blur-3xl animate-pulse" style={{ animationDelay: '2s' }} />

      </div>



      {/* Hero Section */}

      <section className="relative pt--3 pb-32 px-6">

        

        <div className="max-w-6xl mx-auto text-center">

          

          {/* Floating Icons */}

          <div className="relative h-32 mb-8">



          </div>



          <motion.div

            initial={{ opacity: 0, y: 30 }}

            animate={{ opacity: 1, y: 0 }}

            transition={{ duration: 0.8 }}

          >

            <div className="inline-flex items-center gap-2 px-4 py-2 rounded-full bg-white/10 backdrop-blur-sm border border-white/20 mb-8">

              <Sparkles className="w-4 h-4 text-yellow-400" />

              <span className="text-white/90 text-sm font-medium">Interactive Learning for Grades 5-8</span>

            </div>



            <h1 className="text-5xl md:text-7xl font-black text-transparent bg-clip-text bg-gradient-to-r from-white via-blue-200 to-purple-200 mb-6 leading-tight">

              Computer Vision Lab

              <br />

              <span className="text-4xl md:text-5xl">for Students</span>

            </h1>



            <p className="text-xl md:text-2xl text-white/70 max-w-3xl mx-auto mb-10 leading-relaxed">

              Discover how computers see and understand the world! Learn about 

              <span className="text-cyan-400 font-semibold"> Object Detection</span>, 

              <span className="text-purple-400 font-semibold"> Pose Estimation</span>, and 

              <span className="text-pink-400 font-semibold"> Emotion Recognition</span>.

            </p>



            <div className="flex flex-col sm:flex-row gap-6 justify-center">

              <Link to={createPageUrl('Lessons')}>

                <Button size="lg" className="text-lg px-10 py-7 bg-gradient-to-r from-blue-500 to-purple-600 hover:from-blue-600 hover:to-purple-700 rounded-2xl shadow-2xl shadow-purple-500/30 text-white font-bold border-0 group transition-all">

                  <Rocket className="w-6 h-6 mr-2 group-hover:rotate-12 transition-transform" />

                  Start Learning

                </Button>

              </Link>

              <Link to={createPageUrl('Quiz')}>

                <Button size="lg" className="text-lg px-10 py-7 rounded-2xl border-2 border-white/30 text-white bg-white/5 hover:bg-white/10 hover:border-white/50 font-bold transition-all">

                  Take the Quiz

                </Button>

              </Link>

            </div>

          </motion.div>

        </div>

      </section>



      {/* Topics Section */}

      <section className="relative px-6 pb-32">

        <div className="max-w-6xl mx-auto">

          <motion.div

            initial={{ opacity: 0 }}

            whileInView={{ opacity: 1 }}

            viewport={{ once: true }}

            className="text-center mb-16"

          >

            <h2 className="text-3xl md:text-4xl font-bold text-white mb-4">

              What You'll Learn

            </h2>

            <p className="text-white/60 text-lg">

              Three amazing AI technologies explained simply

            </p>

          </motion.div>



          <div className="grid md:grid-cols-3 gap-6">

            <TopicCard

              icon={Eye}

              title="Object Detection"

              description="Learn how AI finds and identifies objects in images, just like self-driving cars!"

              color="from-blue-600/90 to-cyan-600/90"

              delay={0.1}

              href={createPageUrl('Lessons') + '?chapter=1'}

            />

            <TopicCard

              icon={Activity}

              title="Pose Estimation"

              description="Discover how computers track body movements and create skeleton maps!"

              color="from-purple-600/90 to-pink-600/90"

              delay={0.2}

              href={createPageUrl('Lessons') + '?chapter=2'}

            />

            <TopicCard

              icon={Smile}

              title="Emotion Recognition"

              description="See how AI can understand facial expressions and detect moods!"

              color="from-emerald-600/90 to-teal-600/90"

              delay={0.3}

              href={createPageUrl('Lessons') + '?chapter=3'}

            />

          </div>

        </div>

      </section>



      {/* Stats Section */}

      <section className="relative px-6 pb-32">

        <motion.div

          initial={{ opacity: 0, y: 30 }}

          whileInView={{ opacity: 1, y: 0 }}

          viewport={{ once: true }}

          className="max-w-4xl mx-auto"

        >

          <div className="rounded-3xl bg-white/5 backdrop-blur-xl border border-white/10 p-8 md:p-12">

            <div className="grid grid-cols-2 md:grid-cols-4 gap-8 text-center">

              {[

                { value: "3", label: "AI Topics" },

                { value: "15+", label: "Slides" },

                { value: "12", label: "Quiz Questions" },

                { value: "∞", label: "Fun!" }

              ].map((stat, i) => (

                <motion.div

                  key={i}

                  initial={{ scale: 0 }}

                  whileInView={{ scale: 1 }}

                  viewport={{ once: true }}

                  transition={{ delay: i * 0.1, type: "spring" }}

                >

                  <div className="text-4xl md:text-5xl font-black text-transparent bg-clip-text bg-gradient-to-r from-cyan-400 to-purple-400">

                    {stat.value}

                  </div>

                  <div className="text-white/60 mt-2">{stat.label}</div>

                </motion.div>

              ))}

            </div>

          </div>

        </motion.div>

      </section>

    </div>
  );
}