'use client'; export function getClientCookie(key: string): string | null { if (typeof document === 'undefined') return null; const value = document.cookie .split('; ') .find(row => row.startsWith(`${key}=`)) ?.split('=')[1]; return value ? decodeURIComponent(value) : null; } export function setClientCookie( key: string, value: string, options: { expires?: Date; path?: string } = {} ): void { if (typeof document === 'undefined') return; let cookie = `${key}=${encodeURIComponent(value)}`; if (options.expires) cookie += `; expires=${options.expires.toUTCString()}`; cookie += `; path=${options.path || '/'}`; document.cookie = cookie; }