"use client";

import React, { useMemo } from "react";
import { motion, Variants } from "motion/react";
import { LucideIcon, Brain, Zap, Target, Rocket, Users, Lightbulb, Code, Shield } from "lucide-react";

// --- Types & Interfaces (Tipagem Forte para Previsibilidade) ---
interface StoryStep {
  icon: LucideIcon;
  title: string;
  content: string;
  gradient: string;
  accent: string;
}

interface CoreValue {
  icon: LucideIcon;
  title: string;
  description: string;
}

// --- Data (Desacoplado para facilitar manutenção/CMS) ---
const STORY_DATA: StoryStep[] = [
  {
    icon: Brain,
    title: "A Curiosidade que Me Define",
    content: "Sempre fui fascinado por problemas complexos. Minha abordagem foca em transformar caos em sistemas elegantes e escaláveis.",
    gradient: "from-blue-500 to-cyan-400",
    accent: "text-blue-400",
  },
  {
    icon: Zap,
    title: "Três Anos de Transformação",
    content: "Enfrentei desafios técnicos de alta criticidade, desde arquiteturas distribuídas até integrações legadas complexas.",
    gradient: "from-purple-500 to-pink-500",
    accent: "text-purple-400",
  },
  // Adicione os demais itens aqui mantendo a estrutura...
];

const VALUES_DATA: CoreValue[] = [
  { icon: Code, title: "Excelência Técnica", description: "Código limpo e arquiteturas resilientes." },
  { icon: Brain, title: "Aprendizado Constante", description: "Evolução contínua baseada em fundamentos sólidos." },
  { icon: Users, title: "Colaboração", description: "Equipes de alto desempenho através de empatia e técnica." },
  { icon: Shield, title: "Ética", description: "Integridade em cada linha de código produzida." },
];

// --- Micro-componentes (Feynman Technique: Simplicidade e Reuso) ---

const SectionHeader = () => (
  <motion.div 
    initial={{ opacity: 0, y: 20 }}
    whileInView={{ opacity: 1, y: 0 }}
    className="text-center mb-24"
  >
    <span className="px-4 py-1.5 rounded-full bg-blue-500/10 border border-blue-500/20 text-blue-400 text-xs font-bold uppercase tracking-widest">
      Minha Jornada
    </span>
    <h2 className="mt-6 text-5xl font-extrabold tracking-tight text-white sm:text-6xl">
      Sobre <span className="text-transparent bg-clip-text bg-gradient-to-r from-blue-400 to-cyan-300">Mim</span>
    </h2>
    <p className="mt-6 text-lg text-slate-400 max-w-2xl mx-auto leading-relaxed italic">
      "Transformando complexidade técnica em valor de negócio através da engenharia."
    </p>
  </motion.div>
);

const StoryCard = ({ step, index }: { step: StoryStep; index: number }) => {
  const isEven = index % 2 === 0;
  
  return (
    <motion.div 
      initial={{ opacity: 0, x: isEven ? -30 : 30 }}
      whileInView={{ opacity: 1, x: 0 }}
      viewport={{ once: true, margin: "-100px" }}
      className={`flex flex-col ${isEven ? "md:flex-row" : "md:flex-row-reverse"} items-center gap-12 mb-20`}
    >
      <div className="flex-1 w-full">
        <div className="group relative p-8 rounded-3xl bg-slate-900/50 border border-slate-800 hover:border-blue-500/50 transition-all duration-500 shadow-2xl backdrop-blur-xl">
          <div className={`absolute -top-6 ${isEven ? 'left-6' : 'right-6'} p-4 rounded-2xl bg-slate-900 border border-slate-800 shadow-xl group-hover:scale-110 transition-transform`}>
            <step.icon className={`w-8 h-8 ${step.accent}`} />
          </div>
          <h3 className="mt-4 text-2xl font-bold text-white mb-4">{step.title}</h3>
          <p className="text-slate-400 leading-relaxed text-base font-light">{step.content}</p>
        </div>
      </div>
      <div className="hidden md:flex flex-col items-center">
        <div className="w-12 h-12 rounded-full bg-slate-900 border-4 border-slate-800 flex items-center justify-center z-10">
          <div className="w-3 h-3 rounded-full bg-blue-500 animate-pulse" />
        </div>
        <div className="w-[2px] h-32 bg-gradient-to-b from-blue-500/50 to-transparent" />
      </div>
      <div className="flex-1 hidden md:block" />
    </motion.div>
  );
};

export default function About() {
  return (
    <section id="about" className="relative py-24 bg-[#030712] overflow-hidden">
      {/* Background Decor (Engenharia Visual) */}
      <div className="absolute top-0 left-1/2 -translate-x-1/2 w-full h-full pointer-events-none">
        <div className="absolute top-0 left-1/4 w-96 h-96 bg-blue-600/10 rounded-full blur-[120px]" />
        <div className="absolute bottom-0 right-1/4 w-96 h-96 bg-purple-600/10 rounded-full blur-[120px]" />
      </div>

      <div className="container max-w-6xl mx-auto px-6 relative z-10">
        <SectionHeader />

        <div className="relative">
          {STORY_DATA.map((step, idx) => (
            <StoryCard key={idx} step={step} index={idx} />
          ))}
        </div>

        {/* Grid de Valores com Pareto 80/20 */}
        <div className="grid grid-cols-1 sm:grid-cols-2 lg:grid-cols-4 gap-6 mt-32">
          {VALUES_DATA.map((val, i) => (
            <div key={i} className="p-6 rounded-2xl bg-white/5 border border-white/10 hover:bg-white/10 transition-colors">
              <val.icon className="w-6 h-6 text-blue-400 mb-4" />
              <h4 className="text-white font-semibold mb-2">{val.title}</h4>
              <p className="text-slate-500 text-sm">{val.description}</p>
            </div>
          ))}
        </div>
      </div>
    </section>
  );
}