portfolio/app/not-found.tsx

"use client";

import { motion } from "framer-motion";
import { Home, ArrowLeft, Search, Ghost, RefreshCcw } from "lucide-react";
import Link from "next/link";
import { useRouter } from "next/navigation";
import { useEffect, useState } from "react";

export default function NotFound() {
  const [mounted, setMounted] = useState(false);
  const router = useRouter();

  useEffect(() => {
    setMounted(true);
  }, []);

  if (!mounted) return null;

  return (
    <div className="min-h-screen flex items-center justify-center bg-[#fdfcf8] dark:bg-stone-950 overflow-hidden relative">
      {/* Liquid Background Blobs */}
      <motion.div
        className="absolute top-[-10%] left-[-10%] w-[40%] h-[40%] bg-liquid-mint/20 dark:bg-liquid-mint/10 rounded-full blur-[120px]"
        animate={{
          scale: [1, 1.2, 1],
          x: [0, 50, 0],
          y: [0, 30, 0],
        }}
        transition={{ duration: 15, repeat: Infinity, ease: "easeInOut" }}
      />
      <motion.div
        className="absolute bottom-[-10%] right-[-10%] w-[40%] h-[40%] bg-liquid-rose/20 dark:bg-liquid-rose/10 rounded-full blur-[120px]"
        animate={{
          scale: [1.2, 1, 1.2],
          x: [0, -50, 0],
          y: [0, -30, 0],
        }}
        transition={{ duration: 18, repeat: Infinity, ease: "easeInOut" }}
      />

      <div className="relative z-10 max-w-2xl w-full px-6 text-center">
        {/* Large 404 with Liquid Animation */}
        <motion.div
          initial={{ opacity: 0, y: 20 }}
          animate={{ opacity: 1, y: 0 }}
          transition={{ duration: 0.8, ease: [0.25, 0.1, 0.25, 1] }}
          className="relative inline-block mb-8"
        >
          <h1 className="text-[12rem] md:text-[16rem] font-black text-stone-900/5 dark:text-stone-100/5 select-none leading-none">
            404
          </h1>
          <motion.div
            className="absolute inset-0 flex items-center justify-center"
            animate={{ y: [0, -10, 0] }}
            transition={{ duration: 4, repeat: Infinity, ease: "easeInOut" }}
          >
            <Ghost size={120} className="text-stone-800 dark:text-stone-200 opacity-80" />
          </motion.div>
        </motion.div>

        {/* Content Card */}
        <motion.div
          initial={{ opacity: 0, y: 30 }}
          animate={{ opacity: 1, y: 0 }}
          transition={{ duration: 0.8, delay: 0.2, ease: [0.25, 0.1, 0.25, 1] }}
          className="bg-white/40 dark:bg-stone-900/40 backdrop-blur-2xl border border-white/60 dark:border-white/10 rounded-[2.5rem] p-8 md:p-12 shadow-[0_20px_50px_rgba(0,0,0,0.05)] dark:shadow-none"
        >
          <h2 className="text-3xl md:text-4xl font-bold text-stone-900 dark:text-stone-50 mb-4 font-sans tracking-tight">
            Lost in the Liquid.
          </h2>
          <p className="text-stone-600 dark:text-stone-400 text-lg md:text-xl font-light leading-relaxed mb-10 max-w-md mx-auto">
            The page you are looking for has evaporated or never existed in this dimension.
          </p>

          <div className="grid grid-cols-1 sm:grid-cols-2 gap-4">
            <Link
              href="/"
              className="flex items-center justify-center gap-3 px-8 py-4 bg-stone-900 dark:bg-stone-50 text-white dark:text-stone-900 rounded-2xl font-bold hover:scale-[1.02] active:scale-[0.98] transition-all shadow-lg hover:shadow-xl dark:shadow-none group"
            >
              <Home size={20} className="group-hover:-translate-y-0.5 transition-transform" />
              <span>Back Home</span>
            </Link>
            
            <button
              onClick={() => router.back()}
              className="flex items-center justify-center gap-3 px-8 py-4 bg-white dark:bg-stone-800 text-stone-900 dark:text-stone-100 border border-stone-200 dark:border-stone-700 rounded-2xl font-bold hover:bg-stone-50 dark:hover:bg-stone-700 hover:scale-[1.02] active:scale-[0.98] transition-all shadow-sm group"
            >
              <ArrowLeft size={20} className="group-hover:-translate-x-1 transition-transform" />
              <span>Go Back</span>
            </button>
          </div>

          <div className="mt-8 pt-8 border-t border-stone-100 dark:border-stone-800">
            <Link
              href="/projects"
              className="inline-flex items-center gap-2 text-stone-500 dark:text-stone-400 hover:text-stone-900 dark:hover:text-stone-100 transition-colors font-medium group"
            >
              <Search size={18} className="group-hover:rotate-12 transition-transform" />
              <span>Looking for my work? Explore projects</span>
            </Link>
          </div>
        </motion.div>

        {/* Floating Help Badge */}
        <motion.div
          initial={{ opacity: 0 }}
          animate={{ opacity: 1 }}
          transition={{ delay: 1 }}
          className="mt-12"
        >
          <button 
            onClick={() => window.location.reload()}
            className="inline-flex items-center gap-2 px-4 py-2 bg-stone-100 dark:bg-stone-800 rounded-full text-stone-500 dark:text-stone-400 text-xs font-mono hover:text-stone-800 dark:hover:text-stone-200 transition-colors"
          >
            <RefreshCcw size={12} />
            <span>ERR_PAGE_NOT_FOUND_404</span>
          </button>
        </motion.div>
      </div>
    </div>
  );
}