'use client'

import React from 'react'
import { motion } from 'framer-motion'

interface Step {
  number: string
  title: string
  description: string
}

const steps: Step[] = [
  {
    number: '1',
    title: 'Kunde wählen',
    description: 'Gewünschten Kunden auswählen, der die Lizenz erhalten soll.'
  },
  {
    number: '2',
    title: 'Lizenz wählen',
    description: 'Gewünschte Lizenzen für den Kunden auswählen und die Bestellung abschließen.'
  },
  {
    number: '3',
    title: 'Live gehen',
    description: 'Nach dem Erhalt der Lizenz direkt live gehen und durchstarten.'
  }
]

const containerVariants = {
  hidden: {},
  visible: {
    transition: {
      delayChildren: 0.2,
      staggerChildren: 0.35
    }
  }
}

const stepVariants = {
  hidden: {
    opacity: 0,
    y: 20
  },
  visible: {
    opacity: 1,
    y: 0,
    transition: {
      type: 'spring' as const,
      stiffness: 70,
      damping: 16
    }
  }
}

export function ProcessSteps() {
  return (
    <section className="w-full py-16 px-4 relative z-10">
      <div className="container max-w-5xl mx-auto flex flex-col items-center">
        {/* Section Header */}
        <motion.div
          initial={{ opacity: 0, y: 20 }}
          whileInView={{ opacity: 1, y: 0 }}
          viewport={{ once: true, margin: '-80px' }}
          transition={{ type: 'spring' as const, stiffness: 60, damping: 15 }}
          className="text-center space-y-3 mb-16 max-w-2xl"
        >
          <h2 className="text-3xl sm:text-4xl font-extrabold text-white tracking-tight">
            Wie funktioniert die Bereitstellung?
          </h2>
          <p className="text-slate-400 text-base sm:text-lg leading-relaxed">
            In nur drei einfachen Schritten richten Sie CASPOS Lizenzen für Ihre Kunden ein.
          </p>
        </motion.div>

        {/* Horizontale Timeline */}
        <div className="relative w-full">
          {/* Basis-Linie exakt zwischen Schritt 1 und 3 */}
          <div className="hidden md:block absolute top-6 left-[16.6%] right-[16.6%] h-[2px] bg-white/10 z-0 rounded-full" />

          {/* Animierte, aufgeladene Linie (sky-500) */}
          <motion.div
            initial={{ scaleX: 0 }}
            whileInView={{ scaleX: 1 }}
            viewport={{ once: true, margin: '-50px' }}
            transition={{
              duration: 1.5,
              ease: 'easeInOut',
              delay: 0.2
            }}
            className="hidden md:block absolute top-6 left-[16.6%] right-[16.6%] h-[2px] bg-sky-500 origin-left z-0 rounded-full shadow-[0_0_12px_rgba(14,165,233,0.8)]"
          />

          {/* 3 Schritte Nebeneinander */}
          <motion.div
            variants={containerVariants}
            initial="hidden"
            whileInView="visible"
            viewport={{ once: true, margin: '-50px' }}
            className="grid grid-cols-1 md:grid-cols-3 gap-10 md:gap-6 w-full relative z-10"
          >
            {steps.map((step, index) => {
              const isLiveStep = index === 2

              return (
                <motion.div
                  key={step.number}
                  variants={stepVariants}
                  className="group flex flex-col items-center text-center space-y-4 cursor-pointer relative"
                >
                  {/* Nummer im runden Kreis auf der Linie */}
                  <div className="relative">
                    <motion.div
                      whileHover={{ scale: 1.15 }}
                      transition={{ type: 'spring' as const, stiffness: 300, damping: 20 }}
                      className="w-12 h-12 rounded-full bg-slate-950 border-2 border-slate-700 text-slate-300 font-extrabold text-lg flex items-center justify-center group-hover:border-sky-400 group-hover:text-sky-400 group-hover:bg-slate-900 group-hover:shadow-[0_0_20px_rgba(56,189,248,0.4)] transition-all duration-300 z-10 relative"
                    >
                      {step.number}
                    </motion.div>

                    {/* Pulsierender Ziel-Ring bei Schritt 3 */}
                    {isLiveStep && (
                      <motion.div
                        initial={{ opacity: 0, scale: 0.8 }}
                        whileInView={{ opacity: 1, scale: 1 }}
                        viewport={{ once: true }}
                        transition={{ delay: 1.6 }}
                        className="absolute inset-0 rounded-full border-2 border-emerald-400/60 pointer-events-none animate-ping"
                      />
                    )}
                  </div>

                  {/* Text-Inhalt zentriert ohne Boxen-Hintergrund */}
                  <div className="space-y-2 max-w-[280px]">
                    <h3 className="text-xl font-bold text-white group-hover:text-sky-400 transition-colors duration-300 flex items-center justify-center gap-2">
                      {step.title}
                      {isLiveStep && (
                        <span className="inline-flex items-center px-2 py-0.5 rounded-full text-[10px] font-bold bg-emerald-500/10 text-emerald-400 border border-emerald-500/20">
                          LIVE
                        </span>
                      )}
                    </h3>
                    <p className="text-slate-400 text-sm leading-relaxed">
                      {step.description}
                    </p>
                  </div>
                </motion.div>
              )
            })}
          </motion.div>
        </div>
      </div>
    </section>
  )
}