frontend/components/ui/Input.tsx

import React, { useState } from "react";
import { cn } from "@/lib/utils/cn";

interface InputProps extends React.InputHTMLAttributes<HTMLInputElement> {
  label?: string;
  error?: string;
}

export const Input: React.FC<InputProps> = ({
  label,
  error,
  className,
  ...props
}) => {
  const [focused, setFocused] = useState(false);
  const hasValue = props.value !== undefined && props.value !== "";

  return (
    <div className="w-full">
      {label && (
        <label className="block text-sm font-semibold text-gray-700 mb-2">
          {label}
        </label>
      )}
      <div className="relative">
        <input
          className={cn(
            "w-full px-4 py-3 rounded-xl border-2 transition-all duration-250 focus:outline-none focus:ring-2 focus:ring-offset-2",
            "bg-white/80 backdrop-blur-sm",
            error 
              ? "border-red-400 focus:border-red-500 focus:ring-red-500" 
              : focused || hasValue
              ? "border-blue-400 focus:border-blue-500 focus:ring-blue-500"
              : "border-gray-300 focus:border-blue-500 focus:ring-blue-500",
            "hover:border-gray-400",
            className
          )}
          onFocus={() => setFocused(true)}
          onBlur={() => setFocused(false)}
          {...props}
        />
        {(focused || hasValue) && !error && (
          <div className="absolute inset-0 rounded-xl border-2 border-blue-500 pointer-events-none animate-pulse-glow opacity-50"></div>
        )}
      </div>
      {error && (
        <p className="mt-2 text-sm text-red-600 font-medium animate-slide-in">{error}</p>
      )}
    </div>
  );
};