'use client'

import { motion, type Variants } from 'framer-motion'
import Link from 'next/link'
import { Button } from '@/components/ui/button'
import {
  Check, ArrowRight, Shield, Search, FileCheck, TrendingUp,
  Target, Filter, Bell, Eye, Slack, Webhook, History,
  Zap, Lock, ChevronRight, Star
} from 'lucide-react'
import { useState, useEffect } from 'react'
import { SEODemoVisual } from './SEODemoVisual'
import { CompetitorDemoVisual } from './CompetitorDemoVisual'
import { PolicyDemoVisual } from './PolicyDemoVisual'
import { WaitlistForm } from './WaitlistForm'
import { MagneticButton, SectionDivider } from './MagneticElements'

// Animation Variants
const fadeInUp: Variants = {
  hidden: { opacity: 0, y: 30, filter: 'blur(4px)' },
  visible: (i: number = 0) => ({
    opacity: 1,
    y: 0,
    filter: 'blur(0px)',
    transition: {
      delay: i * 0.15,
      duration: 0.7,
      ease: [0.22, 1, 0.36, 1]
    }
  })
}

const scaleIn: Variants = {
  hidden: { opacity: 0, scale: 0.95 },
  visible: {
    opacity: 1,
    scale: 1,
    transition: { duration: 0.5, ease: [0.22, 1, 0.36, 1] }
  }
}

// ============================================
// 1. HERO SECTION - "Track competitor changes without the noise"
// ============================================
export function HeroSection({ isAuthenticated }: { isAuthenticated: boolean }) {
  return (
    <section className="relative overflow-hidden pt-32 pb-24 lg:pt-40 lg:pb-32 bg-[hsl(var(--section-bg-1))]">
      {/* Background Elements */}
      <div className="absolute inset-0 grain-texture" />
      <div className="absolute right-0 top-20 -z-10 h-[600px] w-[600px] rounded-full bg-[hsl(var(--primary))] opacity-8 blur-[120px]" />
      <div className="absolute left-0 bottom-0 -z-10 h-[400px] w-[400px] rounded-full bg-[hsl(var(--teal))] opacity-8 blur-[100px]" />

      <div className="mx-auto max-w-7xl px-6 relative z-10">
        <div className="grid lg:grid-cols-[60%_40%] gap-16 items-center">
          {/* Left: Content */}
          <motion.div
            initial="hidden"
            animate="visible"
            className="flex flex-col gap-8"
          >
            {/* Overline */}
            <motion.div variants={fadeInUp} custom={0}>
              <div className="inline-flex items-center gap-2 rounded-full bg-[hsl(var(--teal))]/10 border border-[hsl(var(--teal))]/20 px-4 py-1.5 text-sm font-medium text-[hsl(var(--teal))]">
                <span className="relative flex h-2 w-2">
                  <span className="animate-ping absolute inline-flex h-full w-full rounded-full bg-[hsl(var(--teal))] opacity-75"></span>
                  <span className="relative inline-flex rounded-full h-2 w-2 bg-[hsl(var(--teal))]"></span>
                </span>
                For SEO & Growth Teams
              </div>
            </motion.div>

            {/* Hero Headline */}
            <motion.h1
              variants={fadeInUp}
              custom={1}
              className="text-5xl lg:text-7xl font-display font-bold leading-[1.08] tracking-tight text-foreground"
            >
              Track competitor changes{' '}
              <span className="text-[hsl(var(--primary))]">without the noise.</span>
            </motion.h1>

            {/* Subheadline */}
            <motion.p
              variants={fadeInUp}
              custom={2}
              className="text-xl lg:text-2xl text-muted-foreground font-body leading-relaxed max-w-2xl"
            >
              Less noise. More signal. Proof included.
            </motion.p>

            {/* Feature Bullets */}
            <motion.div
              variants={fadeInUp}
              custom={3}
              className="grid md:grid-cols-2 gap-4 max-w-2xl"
            >
              {[
                'Auto-filter cookie banners & timestamps',
                'Keyword alerts when it matters',
                'Slack/Webhook integration',
                'Audit-proof history & snapshots'
              ].map((feature, i) => (
                <div key={i} className="flex items-start gap-3">
                  <div className="mt-0.5 flex-shrink-0 flex h-5 w-5 items-center justify-center rounded-full bg-[hsl(var(--teal))]/20">
                    <Check className="h-3 w-3 text-[hsl(var(--teal))]" strokeWidth={3} />
                  </div>
                  <span className="text-foreground text-sm font-medium leading-tight">{feature}</span>
                </div>
              ))}
            </motion.div>

            {/* CTAs */}
            <motion.div
              variants={fadeInUp}
              custom={4}
              className="flex flex-wrap gap-4"
            >
              <MagneticButton strength={0.2}>
                <Link href={isAuthenticated ? "/dashboard" : "/register"}>
                  <Button
                    size="lg"
                    className="h-14 rounded-full bg-[hsl(var(--primary))] px-8 text-white hover:bg-[hsl(var(--primary))]/90 shadow-2xl shadow-[hsl(var(--primary))]/25 transition-all hover:scale-105 hover:-translate-y-0.5 font-semibold text-base group"
                  >
                    {isAuthenticated ? 'Go to Dashboard' : 'Get Started Free'}
                    <ArrowRight className="ml-2 h-4 w-4 group-hover:translate-x-1 transition-transform" />
                  </Button>
                </Link>
              </MagneticButton>
            </motion.div>

            {/* Trust Signals */}
            <motion.div
              variants={fadeInUp}
              custom={5}
              className="flex flex-wrap items-center gap-6 text-sm text-muted-foreground"
            >
              <div className="flex items-center gap-2">
                <Lock className="h-4 w-4" />
                <span>No credit card</span>
              </div>
              <span>•</span>
              <div className="flex items-center gap-2">
                <Shield className="h-4 w-4" />
                <span>No spam, ever</span>
              </div>
              <span>•</span>
              <div className="flex items-center gap-2">
                <Star className="h-4 w-4 fill-current" />
                <span>Early access bonus</span>
              </div>
            </motion.div>
          </motion.div>

          {/* Right: Animated Visual - Noise → Signal */}
          <motion.div
            initial={{ opacity: 0, x: 40 }}
            animate={{ opacity: 1, x: 0 }}
            transition={{ duration: 0.9, delay: 0.3 }}
            className="relative"
          >
            <NoiseToSignalVisual />
          </motion.div>
        </div>
      </div>
    </section>
  )
}

// Noise → Signal Animation Component - Enhanced
function NoiseToSignalVisual() {
  const [phase, setPhase] = useState(0)
  const [isPaused, setIsPaused] = useState(false)
  const [particles, setParticles] = useState<{ id: number; x: number; y: number }[]>([])

  useEffect(() => {
    if (isPaused) return
    const interval = setInterval(() => {
      setPhase(p => {
        const nextPhase = (p + 1) % 4
        // Trigger particles when transitioning from phase 0 to 1
        if (p === 0 && nextPhase === 1) {
          triggerParticles()
        }
        return nextPhase
      })
    }, 2500)
    return () => clearInterval(interval)
  }, [isPaused])

  const triggerParticles = () => {
    const newParticles = Array.from({ length: 8 }, (_, i) => ({
      id: Date.now() + i,
      x: Math.random() * 100,
      y: Math.random() * 100
    }))
    setParticles(newParticles)
    setTimeout(() => setParticles([]), 1000)
  }

  return (
    <motion.div
      className="relative aspect-[4/3] rounded-3xl border-2 border-border bg-card/50 backdrop-blur-sm shadow-2xl overflow-hidden cursor-pointer group"
      style={{ perspective: '1000px' }}
      whileHover={{ rotateY: 2, rotateX: -2, scale: 1.02 }}
      transition={{ duration: 0.3 }}
      onHoverStart={() => setIsPaused(true)}
      onHoverEnd={() => setIsPaused(false)}
    >
      {/* Pulsing Glow Border */}
      {phase >= 1 && (
        <motion.div
          className="absolute inset-0 rounded-3xl"
          animate={{
            boxShadow: [
              '0 0 0px hsl(var(--teal))',
              '0 0 20px hsl(var(--teal) / 0.5)',
              '0 0 0px hsl(var(--teal))'
            ]
          }}
          transition={{ duration: 2, repeat: Infinity }}
        />
      )}

      {/* Particles */}
      {particles.map(particle => (
        <motion.div
          key={particle.id}
          className="absolute w-1 h-1 rounded-full bg-[hsl(var(--teal))]"
          initial={{ x: `${particle.x}%`, y: `${particle.y}%`, opacity: 1, scale: 1 }}
          animate={{
            y: `${particle.y - 20}%`,
            opacity: 0,
            scale: 0
          }}
          transition={{ duration: 0.8 }}
        />
      ))}

      {/* Mock Browser Header */}
      <div className="flex items-center gap-2 border-b border-border bg-secondary/30 px-4 py-3">
        <div className="flex gap-1.5">
          <div className="h-2.5 w-2.5 rounded-full bg-red-400" />
          <div className="h-2.5 w-2.5 rounded-full bg-yellow-400" />
          <div className="h-2.5 w-2.5 rounded-full bg-green-400" />
        </div>
        <div className="flex-1 mx-4 px-3 py-1 rounded-md bg-background/50 text-xs text-muted-foreground font-mono text-center">
          competitor-site.com/pricing
        </div>
        {isPaused && (
          <motion.div
            initial={{ opacity: 0, scale: 0.8 }}
            animate={{ opacity: 1, scale: 1 }}
            className="text-[10px] text-muted-foreground font-medium"
          >
            PAUSED
          </motion.div>
        )}
      </div>

      {/* Content Area */}
      <div className="p-8 space-y-4 relative">
        {/* Noise Counter */}
        <motion.div
          className="absolute top-4 left-4 px-3 py-1 rounded-full bg-background/80 backdrop-blur-sm border border-border text-xs font-mono font-semibold"
          animate={{
            opacity: phase === 0 ? 1 : 0.5,
            scale: phase === 0 ? 1 : 0.95
          }}
        >
          Noise: {phase === 0 ? '67%' : '0%'}
        </motion.div>

        {/* Phase 0: Noisy Page */}
        <motion.div
          animate={{
            opacity: phase === 0 ? 1 : 0,
            scale: phase === 0 ? 1 : 0.98,
            filter: phase === 0 ? 'blur(0px)' : 'blur(8px)'
          }}
          transition={{ duration: 0.5, ease: [0.22, 1, 0.36, 1] }}
          className="space-y-3"
        >
          {/* Cookie Banner - with strikethrough */}
          <motion.div
            className="flex items-center justify-between p-3 rounded-lg bg-muted/30 border border-border/40 relative overflow-hidden"
            animate={{
              x: phase >= 1 ? -10 : 0,
              opacity: phase >= 1 ? 0.3 : 1
            }}
            transition={{ duration: 0.4 }}
          >
            <span className="text-xs text-muted-foreground">🍪 Cookie Banner</span>
            <span className="text-xs text-red-500 font-semibold">
              NOISE
            </span>
            {/* Strikethrough animation */}
            {phase >= 1 && (
              <motion.div
                className="absolute inset-0 border-t-2 border-red-500 top-1/2"
                initial={{ scaleX: 0 }}
                animate={{ scaleX: 1 }}
                transition={{ duration: 0.3 }}
              />
            )}
          </motion.div>

          {/* Enterprise Plan Card */}
          <div className="p-4 rounded-lg bg-background border border-border">
            <p className="text-sm font-semibold text-foreground mb-2">Enterprise Plan</p>
            <p className="text-2xl font-bold text-[hsl(var(--burgundy))]">$99/mo</p>
          </div>

          {/* Timestamp - with strikethrough */}
          <motion.div
            className="flex items-center justify-between p-3 rounded-lg bg-muted/30 border border-border/40 relative overflow-hidden"
            animate={{
              x: phase >= 1 ? -10 : 0,
              opacity: phase >= 1 ? 0.3 : 1
            }}
            transition={{ duration: 0.4, delay: 0.1 }}
          >
            <span className="text-xs text-muted-foreground">⏰ Last updated: 10:23 AM</span>
            <span className="text-xs text-red-500 font-semibold">
              NOISE
            </span>
            {/* Strikethrough animation */}
            {phase >= 1 && (
              <motion.div
                className="absolute inset-0 border-t-2 border-red-500 top-1/2"
                initial={{ scaleX: 0 }}
                animate={{ scaleX: 1 }}
                transition={{ duration: 0.3, delay: 0.1 }}
              />
            )}
          </motion.div>
        </motion.div>

        {/* Phase 1-3: Filtered + Highlighted Signal */}
        {phase >= 1 && (
          <motion.div
            initial={{ opacity: 0, scale: 0.85, rotateX: -15 }}
            animate={{
              opacity: 1,
              scale: 1,
              rotateX: 0
            }}
            transition={{
              duration: 0.6,
              ease: [0.22, 1, 0.36, 1],
              scale: { type: 'spring', stiffness: 300, damping: 20 }
            }}
            className="absolute inset-0 flex items-center justify-center p-8"
          >
            <motion.div
              className="w-full p-6 rounded-2xl bg-white border-2 border-[hsl(var(--teal))] shadow-2xl relative overflow-hidden"
              animate={{
                boxShadow: [
                  '0 20px 60px hsl(var(--teal) / 0.2)',
                  '0 20px 80px hsl(var(--teal) / 0.3)',
                  '0 20px 60px hsl(var(--teal) / 0.2)'
                ]
              }}
              transition={{ duration: 2, repeat: Infinity }}
            >
              {/* Animated corner accent */}
              <motion.div
                className="absolute top-0 right-0 w-20 h-20 bg-[hsl(var(--teal))]/10 rounded-bl-full"
                animate={{ scale: [1, 1.1, 1] }}
                transition={{ duration: 2, repeat: Infinity }}
              />

              <div className="relative z-10">
                <div className="flex items-center justify-between mb-2">
                  <motion.span
                    className="text-xs font-bold uppercase tracking-wider text-[hsl(var(--teal))]"
                    animate={{ opacity: [1, 0.7, 1] }}
                    transition={{ duration: 1.5, repeat: Infinity }}
                  >
                    ✓ SIGNAL DETECTED
                  </motion.span>
                  <div className="flex items-center gap-1.5 text-xs font-medium text-[hsl(var(--teal))]">
                    <Filter className="h-3 w-3" />
                    Filtered
                  </div>
                </div>
                <p className="text-sm font-semibold text-muted-foreground mb-3">Enterprise Plan</p>
                <div className="flex items-baseline gap-3">
                  <p className="text-3xl font-bold text-foreground">$99/mo</p>
                  <motion.p
                    initial={{ opacity: 0, x: -10, scale: 0.9 }}
                    animate={{
                      opacity: phase >= 2 ? 1 : 0,
                      x: phase >= 2 ? 0 : -10,
                      scale: phase >= 2 ? 1 : 0.9
                    }}
                    transition={{ duration: 0.5, ease: [0.22, 1, 0.36, 1] }}
                    className="text-lg text-[hsl(var(--burgundy))] font-bold flex items-center gap-1"
                  >
                    <span>→</span>
                    <motion.span
                      animate={{ scale: phase === 2 ? [1, 1.1, 1] : 1 }}
                      transition={{ duration: 0.5 }}
                    >
                      $79/mo
                    </motion.span>
                  </motion.p>
                </div>

                {/* Alert badge */}
                {phase >= 3 && (
                  <motion.div
                    initial={{ opacity: 0, y: 10 }}
                    animate={{ opacity: 1, y: 0 }}
                    className="mt-4 inline-flex items-center gap-2 px-3 py-1.5 rounded-full bg-[hsl(var(--burgundy))]/10 border border-[hsl(var(--burgundy))]/30"
                  >
                    <Bell className="h-3 w-3 text-[hsl(var(--burgundy))]" />
                    <span className="text-[10px] font-bold text-[hsl(var(--burgundy))] uppercase tracking-wider">
                      Alert Sent
                    </span>
                  </motion.div>
                )}
              </div>
            </motion.div>
          </motion.div>
        )}

        {/* Phase Indicator */}
        <div className="absolute bottom-4 right-4 flex gap-1.5">
          {[0, 1, 2, 3].map(i => (
            <motion.div
              key={i}
              animate={{
                width: phase === i ? 24 : 6,
                backgroundColor: phase === i ? 'hsl(var(--teal))' : 'hsl(var(--border))'
              }}
              transition={{ duration: 0.3 }}
              className="h-1.5 rounded-full"
            />
          ))}
        </div>
      </div>
    </motion.div>
  )
}

// ============================================
// 2. USE CASE SHOWCASE - SEO, Competitor, Policy
// ============================================
export function UseCaseShowcase() {
  const useCases = [
    {
      icon: <Search className="h-7 w-7" />,
      title: 'SEO Monitoring',
      problem: 'Your rankings drop before you know why.',
      example: 'Track when competitors update meta descriptions or add new content sections that outrank you.',
      color: 'teal',
      gradient: 'from-[hsl(var(--teal))]/10 to-transparent',
      demoComponent: <SEODemoVisual />
    },
    {
      icon: <TrendingUp className="h-7 w-7" />,
      title: 'Competitor Intelligence',
      problem: 'Competitor launches slip past your radar.',
      example: 'Monitor pricing pages, product launches, and promotional campaigns in real-time.',
      color: 'primary',
      gradient: 'from-[hsl(var(--primary))]/10 to-transparent',
      demoComponent: <CompetitorDemoVisual />
    },
    {
      icon: <FileCheck className="h-7 w-7" />,
      title: 'Policy & Compliance',
      problem: 'Regulatory updates appear without warning.',
      example: 'Track policy changes, terms updates, and legal text modifications with audit-proof history.',
      color: 'burgundy',
      gradient: 'from-[hsl(var(--burgundy))]/10 to-transparent',
      demoComponent: <PolicyDemoVisual />
    }
  ]

  return (
    <section className="py-32 bg-[hsl(var(--section-bg-3))] relative overflow-hidden">
      {/* Background Decor - Enhanced Grid */}
      <div className="absolute inset-0 bg-[linear-gradient(to_right,hsl(var(--border))_1px,transparent_1px),linear-gradient(to_bottom,hsl(var(--border))_1px,transparent_1px)] bg-[size:4rem_4rem] opacity-30 [mask-image:radial-gradient(ellipse_80%_50%_at_50%_50%,#000_70%,transparent_100%)]" />

      <div className="mx-auto max-w-7xl px-6 relative z-10">
        {/* Section Header */}
        <motion.div
          initial="hidden"
          whileInView="visible"
          viewport={{ once: true, margin: "-100px" }}
          className="text-center mb-20"
        >
          <motion.div variants={fadeInUp} className="inline-flex items-center gap-2 rounded-full bg-secondary border border-border px-4 py-1.5 text-sm font-medium text-foreground mb-6">
            <Eye className="h-4 w-4" />
            Who This Is For
          </motion.div>
          <motion.h2 variants={fadeInUp} custom={1} className="text-4xl lg:text-5xl font-display font-bold text-foreground mb-6">
            Built for teams who need results,{' '}
            <span className="text-muted-foreground">not demos.</span>
          </motion.h2>
        </motion.div>

        {/* Use Case Cards - Diagonal Cascade */}
        <div className="grid md:grid-cols-3 gap-8 max-w-6xl mx-auto">
          {useCases.map((useCase, i) => (
            <motion.div
              key={i}
              initial={{ opacity: 0, y: 40, rotateX: 10 }}
              whileInView={{ opacity: 1, y: 0, rotateX: 0 }}
              viewport={{ once: true }}
              transition={{ delay: i * 0.15, duration: 0.6, ease: [0.22, 1, 0.36, 1] }}
              whileHover={{ y: -12, scale: 1.02, transition: { duration: 0.3 } }}
              className="group relative glass-card rounded-3xl shadow-xl hover:shadow-2xl transition-all overflow-hidden"
            >
              {/* Gradient Background */}
              <div className={`absolute inset-0 rounded-3xl bg-gradient-to-br ${useCase.gradient} opacity-0 group-hover:opacity-100 transition-opacity`} />

              <div className="relative z-10 p-8 space-y-6">
                {/* Icon */}
                <motion.div
                  whileHover={{ rotate: 5, scale: 1.1 }}
                  transition={{ duration: 0.2 }}
                  className={`inline-flex h-14 w-14 items-center justify-center rounded-2xl bg-[hsl(var(--${useCase.color}))]/10 text-[hsl(var(--${useCase.color}))] border border-[hsl(var(--${useCase.color}))]/20`}
                >
                  {useCase.icon}
                </motion.div>

                {/* Title */}
                <h3 className="text-2xl font-display font-bold text-foreground">
                  {useCase.title}
                </h3>

                {/* Problem Statement */}
                <p className="text-sm font-semibold text-muted-foreground">
                  {useCase.problem}
                </p>

                {/* Animated Demo Visual */}
                <div className="!mt-6 rounded-xl overflow-hidden border border-border/50 shadow-inner">
                  {useCase.demoComponent}
                </div>

                {/* Example Scenario */}
                <div className="pt-4 border-t border-border">
                  <p className="text-xs uppercase tracking-wider font-bold text-muted-foreground mb-2">
                    Example:
                  </p>
                  <p className="text-sm text-foreground leading-relaxed">
                    {useCase.example}
                  </p>
                </div>
              </div>
            </motion.div>
          ))}
        </div>
      </div>
    </section>
  )
}

// ============================================
// 3. HOW IT WORKS - 4 Stage Flow
// ============================================
export function HowItWorks() {
  const stages = [
    { icon: <Target className="h-6 w-6" />, title: 'Set URL', desc: 'Add the page you want to monitor' },
    { icon: <Zap className="h-6 w-6" />, title: 'Check regularly', desc: 'Automated checks at your chosen frequency' },
    { icon: <Filter className="h-6 w-6" />, title: 'Remove noise', desc: 'AI filters out irrelevant changes' },
    { icon: <Bell className="h-6 w-6" />, title: 'Get alerted', desc: 'Receive notifications that matter' }
  ]

  return (
    <section className="py-32 bg-gradient-to-b from-[hsl(var(--section-bg-4))] to-[hsl(var(--section-bg-5))] relative overflow-hidden">
      {/* Subtle Diagonal Stripe Decoration */}
      <div className="absolute inset-0 opacity-5" style={{ backgroundImage: 'repeating-linear-gradient(45deg, hsl(var(--primary)), hsl(var(--primary)) 2px, transparent 2px, transparent 40px)' }} />
      <div className="mx-auto max-w-7xl px-6 relative z-10">
        {/* Section Header */}
        <motion.div
          initial="hidden"
          whileInView="visible"
          viewport={{ once: true }}
          className="text-center mb-20"
        >
          <motion.h2 variants={fadeInUp} className="text-4xl lg:text-5xl font-display font-bold text-foreground mb-6">
            How it works
          </motion.h2>
          <motion.p variants={fadeInUp} custom={1} className="text-xl text-muted-foreground max-w-2xl mx-auto">
            Four simple steps to never miss an important change again.
          </motion.p>
        </motion.div>

        {/* Horizontal Flow */}
        <div className="relative">
          {/* Connecting Line */}
          <div className="absolute top-1/2 left-0 right-0 h-0.5 bg-gradient-to-r from-transparent via-border to-transparent -translate-y-1/2 hidden lg:block" />

          <div className="grid lg:grid-cols-4 gap-8 lg:gap-4">
            {stages.map((stage, i) => (
              <motion.div
                key={i}
                initial={{ opacity: 0, y: 30 }}
                whileInView={{ opacity: 1, y: 0 }}
                viewport={{ once: true }}
                transition={{ delay: i * 0.1, duration: 0.5 }}
                className="relative flex flex-col items-center text-center group"
              >
                {/* Large Number Background */}
                <div className="absolute -top-4 left-1/2 -translate-x-1/2 text-8xl font-display font-bold text-border/20 pointer-events-none">
                  {String(i + 1).padStart(2, '0')}
                </div>

                {/* Circle Container */}
                <div className="relative z-10 mb-6 flex h-20 w-20 items-center justify-center rounded-full border-2 border-border bg-card shadow-lg group-hover:shadow-2xl group-hover:border-[hsl(var(--primary))] group-hover:bg-[hsl(var(--primary))]/5 transition-all">
                  <div className="text-[hsl(var(--primary))]">
                    {stage.icon}
                  </div>
                </div>

                {/* Text */}
                <h3 className="text-lg font-bold text-foreground mb-2">
                  {stage.title}
                </h3>
                <p className="text-sm text-muted-foreground max-w-[200px]">
                  {stage.desc}
                </p>

                {/* Arrow (not on last) */}
                {i < stages.length - 1 && (
                  <div className="hidden lg:block absolute top-10 -right-4 text-border">
                    <ChevronRight className="h-6 w-6" />
                  </div>
                )}
              </motion.div>
            ))}
          </div>
        </div>
      </div>
    </section>
  )
}

// ============================================
// 4. DIFFERENTIATORS - Why We're Better
// ============================================
export function Differentiators() {
  const features = [
    { feature: 'Noise Filtering', others: 'Basic', us: 'AI-powered + custom rules', icon: <Filter className="h-5 w-5" /> },
    { feature: 'Keyword Alerts', others: 'Limited', us: 'Regex + thresholds', icon: <Search className="h-5 w-5" /> },
    { feature: 'Integrations', others: 'Email only', us: 'Slack, Webhooks, Teams', icon: <Slack className="h-5 w-5" /> },
    { feature: 'History & Proof', others: '7-30 days', us: 'Unlimited snapshots', icon: <History className="h-5 w-5" /> },
    { feature: 'Setup Time', others: '15+ min', us: '2 minutes', icon: <Zap className="h-5 w-5" /> },
    { feature: 'Pricing', others: '$29-99/mo', us: 'Fair pay-per-use', icon: <Shield className="h-5 w-5" /> }
  ]

  return (
    <section className="py-32 bg-[hsl(var(--section-bg-5))] relative overflow-hidden">
      {/* Radial Gradient Overlay */}
      <div className="absolute inset-0 bg-[radial-gradient(circle_at_30%_50%,hsl(var(--teal))_0%,transparent_50%)] opacity-5" />
      <div className="mx-auto max-w-6xl px-6 relative z-10">
        {/* Section Header */}
        <motion.div
          initial="hidden"
          whileInView="visible"
          viewport={{ once: true }}
          className="text-center mb-20"
        >
          <motion.h2 variants={fadeInUp} className="text-4xl lg:text-5xl font-display font-bold text-foreground mb-6">
            Why we're{' '}
            <span className="text-[hsl(var(--teal))]">different</span>
          </motion.h2>
          <motion.p variants={fadeInUp} custom={1} className="text-xl text-muted-foreground max-w-2xl mx-auto">
            Not all monitoring tools are created equal. Here's what sets us apart.
          </motion.p>
        </motion.div>

        {/* Feature Cards Grid */}
        <div className="grid md:grid-cols-2 lg:grid-cols-3 gap-6">
          {features.map((item, i) => (
            <motion.div
              key={i}
              initial={{ opacity: 0, scale: 0.95 }}
              whileInView={{ opacity: 1, scale: 1 }}
              viewport={{ once: true }}
              transition={{ delay: i * 0.05, duration: 0.4 }}
              className="group relative glass-card rounded-2xl p-6 hover:border-[hsl(var(--teal))]/30 hover:shadow-xl transition-all hover:-translate-y-1"
            >
              {/* Icon */}
              <div className="inline-flex h-12 w-12 items-center justify-center rounded-xl bg-[hsl(var(--teal))]/10 text-[hsl(var(--teal))] mb-4 group-hover:scale-110 transition-transform">
                {item.icon}
              </div>

              {/* Feature Name */}
              <h3 className="text-lg font-bold text-foreground mb-4">
                {item.feature}
              </h3>

              {/* Comparison */}
              <div className="space-y-3">
                <div className="flex items-start gap-2">
                  <span className="text-xs uppercase tracking-wider font-bold text-muted-foreground flex-shrink-0 mt-0.5">Others:</span>
                  <span className="text-sm text-muted-foreground">{item.others}</span>
                </div>
                <div className="flex items-start gap-2 p-3 rounded-lg bg-[hsl(var(--teal))]/5 border border-[hsl(var(--teal))]/20">
                  <Check className="h-4 w-4 text-[hsl(var(--teal))] flex-shrink-0 mt-0.5" strokeWidth={3} />
                  <span className="text-sm font-semibold text-foreground">{item.us}</span>
                </div>
              </div>
            </motion.div>
          ))}
        </div>
      </div>
    </section>
  )
}

// ============================================
// 5. SOCIAL PROOF - Testimonials (Prepared for Beta)
// ============================================
export function SocialProof() {
  const testimonials = [
    {
      quote: "The noise filtering alone saves me 2 hours per week. Finally, monitoring that actually works.",
      author: "[Beta User]",
      role: "SEO Manager",
      company: "[Company]",
      useCase: "SEO Monitoring"
    },
    {
      quote: "We catch competitor price changes within minutes. Game-changer for our pricing strategy.",
      author: "[Beta User]",
      role: "Growth Lead",
      company: "[Company]",
      useCase: "Competitor Intelligence"
    },
    {
      quote: "Audit-proof history saved us during compliance review. Worth every penny.",
      author: "[Beta User]",
      role: "Compliance Officer",
      company: "[Company]",
      useCase: "Policy Tracking"
    }
  ]

  return (
    <section className="py-32 bg-gradient-to-b from-foreground to-[hsl(var(--foreground))]/95 relative overflow-hidden text-white">
      {/* Background Pattern */}
      <div className="absolute inset-0 opacity-5">
        <div className="absolute inset-0" style={{
          backgroundImage: `url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='1'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E")`,
          backgroundSize: '60px 60px'
        }} />
      </div>

      <div className="mx-auto max-w-7xl px-6 relative z-10">
        {/* Section Header */}
        <motion.div
          initial="hidden"
          whileInView="visible"
          viewport={{ once: true }}
          className="text-center mb-20"
        >
          <motion.h2 variants={fadeInUp} className="text-4xl lg:text-5xl font-display font-bold mb-6">
            Built for teams who need results,{' '}
            <span className="text-[hsl(var(--primary))]">not demos.</span>
          </motion.h2>
        </motion.div>

        {/* Testimonial Cards - Minimal & Uniform */}
        <div className="grid md:grid-cols-3 gap-8">
          {testimonials.map((testimonial, i) => (
            <motion.div
              key={i}
              initial={{ opacity: 0, y: 20 }}
              whileInView={{ opacity: 1, y: 0 }}
              whileHover={{ y: -4 }}
              viewport={{ once: true }}
              transition={{ delay: i * 0.1, duration: 0.5 }}
              className="relative group"
            >
              {/* Subtle gradient border glow */}
              <div className="absolute -inset-0.5 bg-gradient-to-br from-[hsl(var(--primary))] to-[hsl(var(--teal))] rounded-3xl blur opacity-15 group-hover:opacity-25 transition-opacity duration-300" />

              {/* Main Card - fixed height for uniformity */}
              <div className="relative h-full flex flex-col rounded-3xl bg-white/10 backdrop-blur-sm border border-white/20 p-8 group-hover:bg-white/12 transition-colors duration-300">
                {/* Large Quote Mark */}
                <div className="text-5xl font-display text-[hsl(var(--primary))]/30 leading-none mb-3">
                  "
                </div>

                {/* Quote - flex-grow ensures cards align */}
                <p className="font-body text-base leading-relaxed mb-6 text-white/90 font-medium italic flex-grow">
                  {testimonial.quote}
                </p>

                {/* Attribution - always at bottom */}
                <div className="flex items-start justify-between mt-auto">
                  <div>
                    <p className="font-bold text-white text-sm">{testimonial.author}</p>
                    <p className="text-xs text-white/70">{testimonial.role} at {testimonial.company}</p>
                  </div>
                  <div className="px-3 py-1 rounded-full bg-[hsl(var(--teal))]/20 border border-[hsl(var(--teal))]/30 text-[10px] font-bold uppercase tracking-wider text-[hsl(var(--teal))]">
                    {testimonial.useCase}
                  </div>
                </div>
              </div>
            </motion.div>
          ))}
        </div>

        {/* Note */}
        <motion.p
          initial={{ opacity: 0 }}
          whileInView={{ opacity: 1 }}
          viewport={{ once: true }}
          className="text-center mt-12 text-sm text-white/60"
        >
          Join our waitlist to become a beta tester and get featured here.
        </motion.p>
      </div>
    </section>
  )
}

// ============================================
// 6. FINAL CTA - Get Started
// ============================================
export function FinalCTA({ isAuthenticated }: { isAuthenticated: boolean }) {
  return (
    <section className="relative overflow-hidden py-32">
      {/* Animated Gradient Mesh Background - More dramatic */}
      <div className="absolute inset-0 bg-gradient-to-br from-[hsl(var(--primary))]/30 via-[hsl(var(--burgundy))]/20 to-[hsl(var(--teal))]/30 opacity-70" />
      <div className="absolute inset-0 grain-texture" />

      {/* Animated Orbs - Enhanced */}
      <motion.div
        animate={{
          scale: [1, 1.3, 1],
          opacity: [0.4, 0.6, 0.4],
          rotate: [0, 180, 360]
        }}
        transition={{ duration: 20, repeat: Infinity, ease: "linear" }}
        className="absolute top-1/4 -left-20 h-[500px] w-[500px] rounded-full bg-[hsl(var(--primary))] blur-[140px]"
      />
      <motion.div
        animate={{
          scale: [1, 1.2, 1],
          opacity: [0.4, 0.5, 0.4],
          rotate: [360, 180, 0]
        }}
        transition={{ duration: 15, repeat: Infinity, ease: "linear", delay: 2 }}
        className="absolute bottom-1/4 -right-20 h-[500px] w-[500px] rounded-full bg-[hsl(var(--teal))] blur-[140px]"
      />

      <div className="mx-auto max-w-4xl px-6 text-center relative z-10">
        <motion.div
          initial="hidden"
          whileInView="visible"
          viewport={{ once: true }}
          className="space-y-8"
        >
          {/* Headline */}
          <motion.h2 variants={fadeInUp} className="text-5xl lg:text-6xl font-display font-bold leading-tight text-foreground">
            Stop missing the changes{' '}
            <span className="text-[hsl(var(--primary))]">that matter.</span>
          </motion.h2>

          {/* Subheadline */}
          <motion.p variants={fadeInUp} custom={1} className="text-xl lg:text-2xl text-muted-foreground max-w-2xl mx-auto">
            Join the waitlist and be first to experience monitoring that actually works.
          </motion.p>

          {/* Waitlist Form - replaces button */}
          <motion.div variants={fadeInUp} custom={2} className="pt-4">
            {isAuthenticated ? (
              <MagneticButton strength={0.15}>
                <Link href="/dashboard">
                  <Button
                    size="lg"
                    className="h-16 rounded-full bg-[hsl(var(--burgundy))] px-12 text-white hover:bg-[hsl(var(--burgundy))]/90 shadow-2xl shadow-[hsl(var(--burgundy))]/30 transition-all hover:scale-105 font-bold text-lg group"
                  >
                    Go to Dashboard
                    <ArrowRight className="ml-2 h-5 w-5 group-hover:translate-x-1 transition-transform" />
                  </Button>
                </Link>
              </MagneticButton>
            ) : (
              <WaitlistForm />
            )}
          </motion.div>

          {/* Social Proof Indicator */}
          <motion.div
            variants={fadeInUp}
            custom={3}
            className="flex flex-wrap items-center justify-center gap-6 text-sm text-muted-foreground"
          >
            <div className="flex items-center gap-2">
              <motion.div
                animate={{ scale: [1, 1.2, 1] }}
                transition={{ duration: 2, repeat: Infinity }}
                className="w-2 h-2 rounded-full bg-green-500"
              />
              <span className="font-semibold text-foreground">500+ joined this week</span>
            </div>
            <span>•</span>
            <div className="flex items-center gap-2">
              <Star className="h-4 w-4 fill-current text-[hsl(var(--primary))]" />
              <span>Early access: <span className="font-semibold text-foreground">50% off for 6 months</span></span>
            </div>
          </motion.div>
        </motion.div>
      </div>
    </section>
  )
}