"use client"

import { useRouter } from "next/navigation";
import Link from "next/link";
import { motion } from "motion/react";
import { Home, ArrowLeft } from "lucide-react";
import { Button } from "@/components/ui/button";

/**
 * 404 Not Found Page
 * 当用户访问不存在的页面时显示
 */
export default function NotFound() {
  const router = useRouter();

  return (
    <div className="relative min-h-screen w-full flex flex-col items-center justify-center bg-background overflow-hidden selection:bg-primary/20">
      <div className="absolute inset-0 -z-10 overflow-hidden">
        <div className="absolute top-1/2 left-1/2 -translate-x-1/2 -translate-y-1/2 w-[500px] h-[500px] bg-primary/20 rounded-full blur-[120px] opacity-20 animate-pulse" />
      </div>

      <div className="container px-6 flex flex-col items-center text-center z-10">
        <motion.div
          initial={{ opacity: 0, scale: 0.95 }}
          animate={{ opacity: 1, scale: 1 }}
          transition={{ duration: 0.8, ease: "easeOut" }}
          className="relative mb-6"
        >
          <h1 className="text-[12rem] md:text-[16rem] font-bold leading-none tracking-tighter text-transparent bg-clip-text bg-gradient-to-b from-foreground/10 to-foreground/5 select-none">
            404
          </h1>
          <div className="absolute inset-0 flex items-center justify-center">
            <span className="text-2xl font-medium tracking-[0.2em] text-foreground/80 uppercase">Page Not Found</span>
          </div>
        </motion.div>

        <motion.div
          initial={{ opacity: 0, y: 10 }}
          animate={{ opacity: 1, y: 0 }}
          transition={{ delay: 0.2, duration: 0.8 }}
          className="space-y-8"
        >
          <p className="text-muted-foreground max-w-[400px] mx-auto text-sm leading-relaxed">
            抱歉，您访问的页面似已迷失在数字星云中。
            <br />
            请检查路径或返回安全地带。
          </p>

          <div className="flex justify-center gap-4">
            <Button
              variant="secondary"
              size="sm"
              onClick={() => router.back()}
              className="rounded-full w-24 text-xs border-foreground/10 hover:bg-foreground/10 transition-all duration-300"
            >
              <ArrowLeft className="size-3 opacity-70" />
              上一页
            </Button>

            <Link href="/">
              <Button
                variant="default"
                size="sm"
                className="rounded-full w-24 text-xs hover:bg-primary/80 transition-all duration-300"
              >
                <Home className="size-3" />
                首页
              </Button>
            </Link>
          </div>
        </motion.div>
      </div>

      <div className="absolute bottom-8 text-xs text-muted-foreground/30 font-mono">
        ERR_HTTP_NOT_FOUND
      </div>
    </div>
  );
}