'use client'

import { useEffect, useState } from 'react'
import { useRouter } from 'next/navigation'
import { Header } from '@/components/Header'
import { Footer } from '@/components/Footer'
import { useStore } from '@/lib/store'
import { api, PriceAlert } from '@/lib/api'
import {
  User,
  Bell,
  CreditCard,
  Shield,
  ChevronRight,
  Loader2,
  Check,
  AlertCircle,
  Trash2,
  ExternalLink,
  Crown,
  Zap,
  Key,
  TrendingUp,
} from 'lucide-react'
import Link from 'next/link'
import clsx from 'clsx'

type SettingsTab = 'profile' | 'notifications' | 'billing' | 'security'

export default function SettingsPage() {
  const router = useRouter()
  const { user, isAuthenticated, isLoading, checkAuth, subscription } = useStore()
  
  const [activeTab, setActiveTab] = useState<SettingsTab>('profile')
  const [saving, setSaving] = useState(false)
  const [success, setSuccess] = useState<string | null>(null)
  const [error, setError] = useState<string | null>(null)
  
  // Profile form
  const [profileForm, setProfileForm] = useState({
    name: '',
    email: '',
  })
  
  // Notification preferences (local state - would be persisted via API in production)
  const [notificationPrefs, setNotificationPrefs] = useState({
    domain_availability: true,
    price_alerts: true,
    weekly_digest: false,
  })
  const [savingNotifications, setSavingNotifications] = useState(false)
  
  // Price alerts
  const [priceAlerts, setPriceAlerts] = useState<PriceAlert[]>([])
  const [loadingAlerts, setLoadingAlerts] = useState(false)
  const [deletingAlertId, setDeletingAlertId] = useState<number | null>(null)

  useEffect(() => {
    checkAuth()
  }, [checkAuth])

  useEffect(() => {
    if (!isLoading && !isAuthenticated) {
      router.push('/login')
    }
  }, [isLoading, isAuthenticated, router])

  useEffect(() => {
    if (user) {
      setProfileForm({
        name: user.name || '',
        email: user.email || '',
      })
    }
  }, [user])

  useEffect(() => {
    if (isAuthenticated && activeTab === 'notifications') {
      loadPriceAlerts()
    }
  }, [isAuthenticated, activeTab])

  const loadPriceAlerts = async () => {
    setLoadingAlerts(true)
    try {
      const alerts = await api.getPriceAlerts()
      setPriceAlerts(alerts)
    } catch (err) {
      console.error('Failed to load alerts:', err)
    } finally {
      setLoadingAlerts(false)
    }
  }

  const handleSaveProfile = async (e: React.FormEvent) => {
    e.preventDefault()
    setSaving(true)
    setError(null)
    setSuccess(null)
    
    try {
      await api.updateMe({ name: profileForm.name || undefined })
      // Update store with new user info
      const { checkAuth } = useStore.getState()
      await checkAuth()
      setSuccess('Profile updated successfully')
    } catch (err) {
      setError(err instanceof Error ? err.message : 'Failed to update profile')
    } finally {
      setSaving(false)
    }
  }

  const handleSaveNotifications = async () => {
    setSavingNotifications(true)
    setError(null)
    setSuccess(null)
    
    try {
      // Store in localStorage for now (would be API in production)
      localStorage.setItem('notification_prefs', JSON.stringify(notificationPrefs))
      setSuccess('Notification preferences saved')
    } catch (err) {
      setError(err instanceof Error ? err.message : 'Failed to save preferences')
    } finally {
      setSavingNotifications(false)
    }
  }

  // Load notification preferences from localStorage
  useEffect(() => {
    const saved = localStorage.getItem('notification_prefs')
    if (saved) {
      try {
        setNotificationPrefs(JSON.parse(saved))
      } catch {}
    }
  }, [])

  const handleDeletePriceAlert = async (tld: string, alertId: number) => {
    setDeletingAlertId(alertId)
    try {
      await api.deletePriceAlert(tld)
      setPriceAlerts(prev => prev.filter(a => a.id !== alertId))
    } catch (err) {
      setError(err instanceof Error ? err.message : 'Failed to delete alert')
    } finally {
      setDeletingAlertId(null)
    }
  }

  const handleOpenBillingPortal = async () => {
    try {
      const { portal_url } = await api.createPortalSession()
      window.location.href = portal_url
    } catch (err) {
      setError(err instanceof Error ? err.message : 'Failed to open billing portal')
    }
  }

  if (isLoading) {
    return (
      <div className="min-h-screen flex items-center justify-center">
        <div className="w-5 h-5 border-2 border-accent border-t-transparent rounded-full animate-spin" />
      </div>
    )
  }

  if (!isAuthenticated || !user) {
    return null
  }

  const tierName = subscription?.tier_name || subscription?.tier || 'Scout'
  const isProOrHigher = ['Trader', 'Tycoon', 'Professional', 'Enterprise'].includes(tierName)

  const tabs = [
    { id: 'profile' as const, label: 'Profile', icon: User },
    { id: 'notifications' as const, label: 'Notifications', icon: Bell },
    { id: 'billing' as const, label: 'Billing', icon: CreditCard },
    { id: 'security' as const, label: 'Security', icon: Shield },
  ]

  return (
    <div className="min-h-screen bg-background relative overflow-hidden">
      {/* Background Effects - matching landing page */}
      <div className="fixed inset-0 pointer-events-none">
        <div className="absolute top-[-20%] left-1/2 -translate-x-1/2 w-[1200px] h-[800px] bg-accent/[0.03] rounded-full blur-[120px]" />
        <div className="absolute bottom-[-10%] right-[-10%] w-[600px] h-[600px] bg-accent/[0.02] rounded-full blur-[100px]" />
        <div 
          className="absolute inset-0 opacity-[0.015]"
          style={{
            backgroundImage: `linear-gradient(rgba(255,255,255,.1) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.1) 1px, transparent 1px)`,
            backgroundSize: '64px 64px',
          }}
        />
      </div>
      
      <Header />

      <main className="relative flex-1 pt-32 sm:pt-40 pb-20 sm:pb-28 px-4 sm:px-6 lg:px-8">
        <div className="max-w-7xl mx-auto">
          {/* Header */}
          <div className="mb-12 sm:mb-16 animate-fade-in">
            <span className="text-sm font-semibold text-accent uppercase tracking-wider">Settings</span>
            <h1 className="mt-4 font-display text-[2rem] sm:text-[2.75rem] md:text-[3.5rem] leading-[1.1] tracking-[-0.03em] text-foreground">
              Your account.
            </h1>
            <p className="mt-3 text-lg text-foreground-muted">
              Your rules. Configure everything in one place.
            </p>
          </div>

          {/* Messages */}
          {error && (
            <div className="mb-6 p-4 bg-danger/5 border border-danger/20 rounded-2xl flex items-center gap-3">
              <AlertCircle className="w-5 h-5 text-danger shrink-0" />
              <p className="text-body-sm text-danger flex-1">{error}</p>
              <button onClick={() => setError(null)} className="text-danger hover:text-danger/80">
                <Trash2 className="w-4 h-4" />
              </button>
            </div>
          )}

          {success && (
            <div className="mb-6 p-4 bg-accent/5 border border-accent/20 rounded-2xl flex items-center gap-3">
              <Check className="w-5 h-5 text-accent shrink-0" />
              <p className="text-body-sm text-accent flex-1">{success}</p>
              <button onClick={() => setSuccess(null)} className="text-accent hover:text-accent/80">
                <Trash2 className="w-4 h-4" />
              </button>
            </div>
          )}

          <div className="flex flex-col lg:flex-row gap-8 animate-slide-up">
            {/* Sidebar - Horizontal scroll on mobile, vertical on desktop */}
            <div className="lg:w-72 shrink-0">
              {/* Mobile: Horizontal scroll tabs */}
              <nav className="lg:hidden flex gap-2 overflow-x-auto pb-2 -mx-4 px-4 scrollbar-hide">
                {tabs.map((tab) => (
                  <button
                    key={tab.id}
                    onClick={() => setActiveTab(tab.id)}
                    className={clsx(
                      "flex items-center gap-2.5 px-5 py-3 text-sm font-medium rounded-xl whitespace-nowrap transition-all duration-300",
                      activeTab === tab.id
                        ? "bg-accent text-background shadow-lg shadow-accent/20"
                        : "bg-background-secondary/50 text-foreground-muted hover:text-foreground border border-border hover:border-accent/30"
                    )}
                  >
                    <tab.icon className="w-4 h-4" />
                    {tab.label}
                  </button>
                ))}
              </nav>
              
              {/* Desktop: Vertical tabs */}
              <nav className="hidden lg:block p-2 bg-background-secondary/50 border border-border rounded-2xl">
                {tabs.map((tab) => (
                  <button
                    key={tab.id}
                    onClick={() => setActiveTab(tab.id)}
                    className={clsx(
                      "w-full flex items-center gap-3 px-5 py-3.5 text-sm font-medium rounded-xl transition-all duration-300",
                      activeTab === tab.id
                        ? "bg-accent text-background shadow-lg shadow-accent/20"
                        : "text-foreground-muted hover:text-foreground hover:bg-foreground/5"
                    )}
                  >
                    <tab.icon className="w-4 h-4" />
                    {tab.label}
                  </button>
                ))}
              </nav>

              {/* Plan info - hidden on mobile, shown in content area instead */}
              <div className="hidden lg:block mt-5 p-6 bg-accent/5 border border-accent/20 rounded-2xl">
                <div className="flex items-center gap-2 mb-3">
                  {isProOrHigher ? <Crown className="w-5 h-5 text-accent" /> : <Zap className="w-5 h-5 text-accent" />}
                  <span className="text-sm font-semibold text-foreground">{tierName} Plan</span>
                </div>
                <p className="text-xs text-foreground-muted mb-4">
                  {subscription?.domains_used || 0} / {subscription?.domain_limit || 5} domains tracked
                </p>
                {!isProOrHigher && (
                  <Link
                    href="/pricing"
                    className="flex items-center justify-center gap-2 w-full py-2.5 bg-accent text-background text-ui-sm font-medium rounded-xl hover:bg-accent-hover transition-all"
                  >
                    Upgrade
                    <ChevronRight className="w-3.5 h-3.5" />
                  </Link>
                )}
              </div>
            </div>

            {/* Content */}
            <div className="flex-1 min-w-0">
              {/* Profile Tab */}
              {activeTab === 'profile' && (
                <div className="p-6 sm:p-8 bg-background-secondary/30 border border-border rounded-2xl">
                  <h2 className="text-body-lg font-medium text-foreground mb-6">Profile Information</h2>
                  
                  <form onSubmit={handleSaveProfile} className="space-y-5">
                    <div>
                      <label className="block text-ui-sm text-foreground-muted mb-2">Name</label>
                      <input
                        type="text"
                        value={profileForm.name}
                        onChange={(e) => setProfileForm({ ...profileForm, name: e.target.value })}
                        placeholder="Your name"
                        className="w-full px-4 py-3.5 bg-background border border-border rounded-xl text-body text-foreground
                                   placeholder:text-foreground-subtle focus:outline-none focus:ring-1 focus:ring-accent/50 focus:border-accent/50 transition-all"
                      />
                    </div>

                    <div>
                      <label className="block text-ui-sm text-foreground-muted mb-2">Email</label>
                      <input
                        type="email"
                        value={profileForm.email}
                        disabled
                        className="w-full px-4 py-3.5 bg-background-tertiary border border-border rounded-xl text-body text-foreground-muted cursor-not-allowed"
                      />
                      <p className="text-ui-xs text-foreground-subtle mt-1.5">Email cannot be changed</p>
                    </div>

                    <button
                      type="submit"
                      disabled={saving}
                      className="px-6 py-3.5 bg-foreground text-background text-ui font-medium rounded-xl
                                 hover:bg-foreground/90 disabled:opacity-50 transition-all flex items-center gap-2 shadow-lg shadow-foreground/10"
                    >
                      {saving ? <Loader2 className="w-4 h-4 animate-spin" /> : <Check className="w-4 h-4" />}
                      Save Changes
                    </button>
                  </form>
                </div>
              )}

              {/* Notifications Tab */}
              {activeTab === 'notifications' && (
                <div className="space-y-6">
                  <div className="p-6 sm:p-8 bg-background-secondary/30 border border-border rounded-2xl">
                    <h2 className="text-body-lg font-medium text-foreground mb-5">Email Preferences</h2>
                    
                    <div className="space-y-3">
                      <label className="flex items-center justify-between p-4 bg-background border border-border rounded-xl cursor-pointer hover:border-foreground/20 transition-colors">
                        <div>
                          <p className="text-body-sm font-medium text-foreground">Domain Availability</p>
                          <p className="text-body-xs text-foreground-muted">Get notified when watched domains become available</p>
                        </div>
                        <input 
                          type="checkbox" 
                          checked={notificationPrefs.domain_availability}
                          onChange={(e) => setNotificationPrefs({ ...notificationPrefs, domain_availability: e.target.checked })}
                          className="w-5 h-5 accent-accent cursor-pointer" 
                        />
                      </label>

                      <label className="flex items-center justify-between p-4 bg-background border border-border rounded-xl cursor-pointer hover:border-foreground/20 transition-colors">
                        <div>
                          <p className="text-body-sm font-medium text-foreground">Price Alerts</p>
                          <p className="text-body-xs text-foreground-muted">Get notified when TLD prices change</p>
                        </div>
                        <input 
                          type="checkbox" 
                          checked={notificationPrefs.price_alerts}
                          onChange={(e) => setNotificationPrefs({ ...notificationPrefs, price_alerts: e.target.checked })}
                          className="w-5 h-5 accent-accent cursor-pointer" 
                        />
                      </label>

                      <label className="flex items-center justify-between p-4 bg-background border border-border rounded-xl cursor-pointer hover:border-foreground/20 transition-colors">
                        <div>
                          <p className="text-body-sm font-medium text-foreground">Weekly Digest</p>
                          <p className="text-body-xs text-foreground-muted">Receive a weekly summary of your portfolio</p>
                        </div>
                        <input 
                          type="checkbox" 
                          checked={notificationPrefs.weekly_digest}
                          onChange={(e) => setNotificationPrefs({ ...notificationPrefs, weekly_digest: e.target.checked })}
                          className="w-5 h-5 accent-accent cursor-pointer" 
                        />
                      </label>
                    </div>

                    <button
                      onClick={handleSaveNotifications}
                      disabled={savingNotifications}
                      className="mt-5 px-6 py-3 bg-foreground text-background text-ui font-medium rounded-xl
                                 hover:bg-foreground/90 disabled:opacity-50 transition-all flex items-center gap-2"
                    >
                      {savingNotifications ? <Loader2 className="w-4 h-4 animate-spin" /> : <Check className="w-4 h-4" />}
                      Save Preferences
                    </button>
                  </div>

                  {/* Active Price Alerts */}
                  <div className="p-6 sm:p-8 bg-background-secondary/30 border border-border rounded-2xl">
                    <h2 className="text-body-lg font-medium text-foreground mb-5">Active Price Alerts</h2>
                    
                    {loadingAlerts ? (
                      <div className="py-10 flex items-center justify-center">
                        <Loader2 className="w-6 h-6 animate-spin text-accent" />
                      </div>
                    ) : priceAlerts.length === 0 ? (
                      <div className="py-12 text-center border border-dashed border-border/50 rounded-xl bg-background/30">
                        <Bell className="w-10 h-10 text-foreground-subtle mx-auto mb-4" />
                        <p className="text-body text-foreground-muted mb-3">No price alerts set</p>
                        <Link
                          href="/tld-pricing"
                          className="text-accent hover:text-accent-hover text-body-sm font-medium"
                        >
                          Browse TLD prices →
                        </Link>
                      </div>
                    ) : (
                      <div className="space-y-2">
                        {priceAlerts.map((alert) => (
                          <div
                            key={alert.id}
                            className="flex items-center justify-between p-4 bg-background border border-border rounded-xl hover:border-foreground/20 transition-colors"
                          >
                            <div className="flex items-center gap-3">
                              <div className="relative">
                                <div className={clsx(
                                  "w-2.5 h-2.5 rounded-full",
                                  alert.is_active ? "bg-accent" : "bg-foreground-subtle"
                                )} />
                                {alert.is_active && (
                                  <span className="absolute inset-0 rounded-full bg-accent animate-ping opacity-40" />
                                )}
                              </div>
                              <div>
                                <Link
                                  href={`/tld-pricing/${alert.tld}`}
                                  className="text-body-sm font-mono font-medium text-foreground hover:text-accent transition-colors"
                                >
                                  .{alert.tld}
                                </Link>
                                <p className="text-body-xs text-foreground-muted">
                                  Alert on {alert.threshold_percent}% change
                                  {alert.target_price && ` or below $${alert.target_price}`}
                                </p>
                              </div>
                            </div>
                            <button
                              onClick={() => handleDeletePriceAlert(alert.tld, alert.id)}
                              disabled={deletingAlertId === alert.id}
                              className="p-2 text-foreground-subtle hover:text-danger hover:bg-danger/10 rounded-lg transition-all"
                            >
                              {deletingAlertId === alert.id ? (
                                <Loader2 className="w-4 h-4 animate-spin" />
                              ) : (
                                <Trash2 className="w-4 h-4" />
                              )}
                            </button>
                          </div>
                        ))}
                      </div>
                    )}
                  </div>
                </div>
              )}

              {/* Billing Tab */}
              {activeTab === 'billing' && (
                <div className="space-y-6">
                  {/* Current Plan */}
                  <div className="p-6 sm:p-8 bg-background-secondary/30 border border-border rounded-2xl">
                    <h2 className="text-body-lg font-medium text-foreground mb-6">Your Current Plan</h2>
                    
                    <div className="p-5 bg-accent/5 border border-accent/20 rounded-xl mb-6">
                      <div className="flex items-center justify-between mb-4">
                        <div className="flex items-center gap-3">
                          {tierName === 'Tycoon' ? (
                            <Crown className="w-6 h-6 text-accent" />
                          ) : tierName === 'Trader' ? (
                            <TrendingUp className="w-6 h-6 text-accent" />
                          ) : (
                            <Zap className="w-6 h-6 text-accent" />
                          )}
                          <div>
                            <p className="text-xl font-semibold text-foreground">{tierName}</p>
                            <p className="text-body-sm text-foreground-muted">
                              {tierName === 'Scout' ? 'Free forever' : tierName === 'Trader' ? '$19/month' : '$49/month'}
                            </p>
                          </div>
                        </div>
                        <span className={clsx(
                          "px-3 py-1.5 text-ui-xs font-medium rounded-full",
                          isProOrHigher ? "bg-accent/10 text-accent" : "bg-foreground/5 text-foreground-muted"
                        )}>
                          {isProOrHigher ? 'Active' : 'Free'}
                        </span>
                      </div>
                      
                      {/* Plan Stats */}
                      <div className="grid grid-cols-3 gap-4 p-4 bg-background/50 rounded-xl mb-4">
                        <div className="text-center">
                          <p className="text-2xl font-semibold text-foreground">{subscription?.domain_limit || 5}</p>
                          <p className="text-xs text-foreground-muted">Domains</p>
                        </div>
                        <div className="text-center border-x border-border/50">
                          <p className="text-2xl font-semibold text-foreground">
                            {subscription?.check_frequency === 'realtime' ? '10m' : 
                             subscription?.check_frequency === 'hourly' ? '1h' : '24h'}
                          </p>
                          <p className="text-xs text-foreground-muted">Check Interval</p>
                        </div>
                        <div className="text-center">
                          <p className="text-2xl font-semibold text-foreground">
                            {subscription?.portfolio_limit === -1 ? '∞' : subscription?.portfolio_limit || 0}
                          </p>
                          <p className="text-xs text-foreground-muted">Portfolio</p>
                        </div>
                      </div>
                      
                      {isProOrHigher ? (
                        <button
                          onClick={handleOpenBillingPortal}
                          className="w-full py-3 bg-background text-foreground text-ui font-medium rounded-xl border border-border
                                     hover:border-foreground/20 transition-all flex items-center justify-center gap-2"
                        >
                          <ExternalLink className="w-4 h-4" />
                          Manage Subscription
                        </button>
                      ) : (
                        <Link
                          href="/pricing"
                          className="w-full py-3 bg-accent text-background text-ui font-medium rounded-xl
                                     hover:bg-accent-hover transition-all flex items-center justify-center gap-2 shadow-lg shadow-accent/20"
                        >
                          <Zap className="w-4 h-4" />
                          Upgrade Plan
                        </Link>
                      )}
                    </div>

                    {/* Plan Features */}
                    <h3 className="text-body-sm font-medium text-foreground mb-3">Your Plan Includes</h3>
                    <ul className="grid grid-cols-2 gap-2">
                      <li className="flex items-center gap-2 text-body-sm">
                        <Check className="w-4 h-4 text-accent" />
                        <span className="text-foreground">{subscription?.domain_limit || 5} Watchlist Domains</span>
                      </li>
                      <li className="flex items-center gap-2 text-body-sm">
                        <Check className="w-4 h-4 text-accent" />
                        <span className="text-foreground">
                          {subscription?.check_frequency === 'realtime' ? '10-minute' : 
                           subscription?.check_frequency === 'hourly' ? 'Hourly' : 'Daily'} Scans
                        </span>
                      </li>
                      <li className="flex items-center gap-2 text-body-sm">
                        <Check className="w-4 h-4 text-accent" />
                        <span className="text-foreground">Email Alerts</span>
                      </li>
                      <li className="flex items-center gap-2 text-body-sm">
                        <Check className="w-4 h-4 text-accent" />
                        <span className="text-foreground">TLD Price Data</span>
                      </li>
                      {subscription?.features?.domain_valuation && (
                        <li className="flex items-center gap-2 text-body-sm">
                          <Check className="w-4 h-4 text-accent" />
                          <span className="text-foreground">Domain Valuation</span>
                        </li>
                      )}
                      {(subscription?.portfolio_limit ?? 0) !== 0 && (
                        <li className="flex items-center gap-2 text-body-sm">
                          <Check className="w-4 h-4 text-accent" />
                          <span className="text-foreground">
                            {subscription?.portfolio_limit === -1 ? 'Unlimited' : subscription?.portfolio_limit} Portfolio
                          </span>
                        </li>
                      )}
                      {subscription?.features?.expiration_tracking && (
                        <li className="flex items-center gap-2 text-body-sm">
                          <Check className="w-4 h-4 text-accent" />
                          <span className="text-foreground">Expiry Tracking</span>
                        </li>
                      )}
                      {(subscription?.history_days ?? 0) !== 0 && (
                        <li className="flex items-center gap-2 text-body-sm">
                          <Check className="w-4 h-4 text-accent" />
                          <span className="text-foreground">
                            {subscription?.history_days === -1 ? 'Full' : `${subscription?.history_days}-day`} History
                          </span>
                        </li>
                      )}
                    </ul>
                  </div>

                  {/* Compare All Plans */}
                  <div className="p-6 sm:p-8 bg-background-secondary/30 border border-border rounded-2xl">
                    <h2 className="text-body-lg font-medium text-foreground mb-6">Compare All Plans</h2>
                    
                    <div className="overflow-x-auto -mx-2">
                      <table className="w-full min-w-[500px]">
                        <thead>
                          <tr className="border-b border-border">
                            <th className="text-left py-3 px-3 text-body-sm font-medium text-foreground-muted">Feature</th>
                            <th className={clsx(
                              "text-center py-3 px-3 text-body-sm font-medium",
                              tierName === 'Scout' ? "text-accent" : "text-foreground-muted"
                            )}>Scout</th>
                            <th className={clsx(
                              "text-center py-3 px-3 text-body-sm font-medium",
                              tierName === 'Trader' ? "text-accent" : "text-foreground-muted"
                            )}>Trader</th>
                            <th className={clsx(
                              "text-center py-3 px-3 text-body-sm font-medium",
                              tierName === 'Tycoon' ? "text-accent" : "text-foreground-muted"
                            )}>Tycoon</th>
                          </tr>
                        </thead>
                        <tbody>
                          <tr className="border-b border-border/50">
                            <td className="py-3 px-3 text-body-sm text-foreground">Price</td>
                            <td className="py-3 px-3 text-center text-body-sm text-foreground">Free</td>
                            <td className="py-3 px-3 text-center text-body-sm text-foreground">$19/mo</td>
                            <td className="py-3 px-3 text-center text-body-sm text-foreground">$49/mo</td>
                          </tr>
                          <tr className="border-b border-border/50">
                            <td className="py-3 px-3 text-body-sm text-foreground">Watchlist Domains</td>
                            <td className="py-3 px-3 text-center text-body-sm text-foreground">5</td>
                            <td className="py-3 px-3 text-center text-body-sm text-foreground">50</td>
                            <td className="py-3 px-3 text-center text-body-sm text-foreground">500</td>
                          </tr>
                          <tr className="border-b border-border/50">
                            <td className="py-3 px-3 text-body-sm text-foreground">Scan Frequency</td>
                            <td className="py-3 px-3 text-center text-body-sm text-foreground">Daily</td>
                            <td className="py-3 px-3 text-center text-body-sm text-foreground">Hourly</td>
                            <td className="py-3 px-3 text-center text-body-sm text-accent font-medium">10 min</td>
                          </tr>
                          <tr className="border-b border-border/50">
                            <td className="py-3 px-3 text-body-sm text-foreground">Portfolio</td>
                            <td className="py-3 px-3 text-center text-body-sm text-foreground-muted">—</td>
                            <td className="py-3 px-3 text-center text-body-sm text-foreground">25</td>
                            <td className="py-3 px-3 text-center text-body-sm text-foreground">Unlimited</td>
                          </tr>
                          <tr className="border-b border-border/50">
                            <td className="py-3 px-3 text-body-sm text-foreground">Domain Valuation</td>
                            <td className="py-3 px-3 text-center text-body-sm text-foreground-muted">—</td>
                            <td className="py-3 px-3 text-center"><Check className="w-5 h-5 text-accent mx-auto" /></td>
                            <td className="py-3 px-3 text-center"><Check className="w-5 h-5 text-accent mx-auto" /></td>
                          </tr>
                          <tr className="border-b border-border/50">
                            <td className="py-3 px-3 text-body-sm text-foreground">Price History</td>
                            <td className="py-3 px-3 text-center text-body-sm text-foreground-muted">—</td>
                            <td className="py-3 px-3 text-center text-body-sm text-foreground">90 days</td>
                            <td className="py-3 px-3 text-center text-body-sm text-foreground">Unlimited</td>
                          </tr>
                          <tr>
                            <td className="py-3 px-3 text-body-sm text-foreground">Expiry Tracking</td>
                            <td className="py-3 px-3 text-center text-body-sm text-foreground-muted">—</td>
                            <td className="py-3 px-3 text-center"><Check className="w-5 h-5 text-accent mx-auto" /></td>
                            <td className="py-3 px-3 text-center"><Check className="w-5 h-5 text-accent mx-auto" /></td>
                          </tr>
                        </tbody>
                      </table>
                    </div>
                    
                    {!isProOrHigher && (
                      <div className="mt-6 text-center">
                        <Link
                          href="/pricing"
                          className="inline-flex items-center gap-2 px-6 py-3 bg-accent text-background text-ui font-medium rounded-xl
                                     hover:bg-accent-hover transition-all shadow-lg shadow-accent/20"
                        >
                          <Zap className="w-4 h-4" />
                          Upgrade Now
                        </Link>
                      </div>
                    )}
                  </div>
                </div>
              )}

              {/* Security Tab */}
              {activeTab === 'security' && (
                <div className="space-y-6">
                  <div className="p-6 sm:p-8 bg-background-secondary/30 border border-border rounded-2xl">
                    <h2 className="text-body-lg font-medium text-foreground mb-4">Password</h2>
                    <p className="text-body-sm text-foreground-muted mb-5">
                      Change your password or reset it if you've forgotten it.
                    </p>
                    <Link
                      href="/forgot-password"
                      className="inline-flex items-center gap-2 px-5 py-3 bg-background border border-border text-foreground text-ui font-medium rounded-xl
                                 hover:border-foreground/20 transition-all"
                    >
                      <Key className="w-4 h-4" />
                      Change Password
                    </Link>
                  </div>

                  <div className="p-6 sm:p-8 bg-background-secondary/30 border border-border rounded-2xl">
                    <h2 className="text-body-lg font-medium text-foreground mb-5">Account Security</h2>
                    
                    <div className="space-y-3">
                      <div className="flex items-center justify-between p-4 bg-background border border-border rounded-xl">
                        <div>
                          <p className="text-body-sm font-medium text-foreground">Email Verified</p>
                          <p className="text-body-xs text-foreground-muted">Your email address has been verified</p>
                        </div>
                        <div className="w-8 h-8 bg-accent/10 rounded-lg flex items-center justify-center">
                          <Check className="w-4 h-4 text-accent" />
                        </div>
                      </div>

                      <div className="flex items-center justify-between p-4 bg-background border border-border rounded-xl">
                        <div>
                          <p className="text-body-sm font-medium text-foreground">Two-Factor Authentication</p>
                          <p className="text-body-xs text-foreground-muted">Coming soon</p>
                        </div>
                        <span className="text-ui-xs px-2.5 py-1 bg-foreground/5 text-foreground-muted rounded-full">Soon</span>
                      </div>
                    </div>
                  </div>

                  <div className="p-6 sm:p-8 bg-danger/5 border border-danger/20 rounded-2xl">
                    <h2 className="text-body-lg font-medium text-danger mb-2">Danger Zone</h2>
                    <p className="text-body-sm text-foreground-muted mb-5">
                      Permanently delete your account and all associated data.
                    </p>
                    <button
                      className="px-5 py-3 bg-danger text-white text-ui font-medium rounded-xl hover:bg-danger/90 transition-all"
                    >
                      Delete Account
                    </button>
                  </div>
                </div>
              )}
            </div>
          </div>
        </div>
      </main>

      <Footer />
    </div>
  )
}