'use client';

import React, { useState, useEffect, useMemo } from 'react';
import { LineChart, Line, ResponsiveContainer } from 'recharts';
import 'katex/dist/katex.min.css';
import MacroMathModal from './MacroMathModal';
import {
  TrendingUp, Landmark, AlertCircle, BookOpen, Percent,
  ArrowDownRight, ArrowUpRight, Minus, Activity, ShieldAlert, Coins,
  ChevronDown, ChevronUp
} from 'lucide-react';

interface IndicatorDataPoint {
  date: string;
  value: number;
}

interface MacroIndicator {
  name: string;
  unit: string;
  category: string;
  current: number;
  previous: number;
  trend: 'UP' | 'DOWN' | 'FLAT';
  data: IndicatorDataPoint[];
}

interface MacroDataPayload {
  dates: string[];
  indicators: Record<string, MacroIndicator>;
  liveDataAvailable: boolean;
  timestamp: number;
}

export default function MacroIndicatorsDemo() {
  const [loading, setLoading] = useState(true);
  const [error, setError] = useState<string | null>(null);
  const [payload, setPayload] = useState<MacroDataPayload | null>(null);
  const [isMathModalOpen, setIsMathModalOpen] = useState(false);
  const [isAccordionOpen, setIsAccordionOpen] = useState(false); // Collapsible accordion closed by default

  useEffect(() => {
    const fetchIndicators = async () => {
      setLoading(true);
      setError(null);
      try {
        const response = await fetch('/api/macro/indicators');
        if (response.ok) {
          const data = await response.json();
          setPayload(data);
        } else {
          setError('Fehler beim Abruf der makroökonomischen Indikatoren.');
        }
      } catch (err) {
        console.error('Fetch macro indicators error:', err);
        setError('Netzwerkfehler beim Laden der Makroökonomischen Daten.');
      } finally {
        setLoading(false);
      }
    };

    fetchIndicators();
  }, []);

  // Compute Fed Net Liquidity Proxy dynamically across the 24 months
  // Formula: Net Liquidity = Fed Assets (T$) - TGA (B$/1000) - RRP (B$/1000)
  const netLiquidityIndicator = useMemo(() => {
    if (!payload?.indicators?.fedBalanceSheet || !payload?.indicators?.tga || !payload?.indicators?.rrp) {
      return null;
    }

    const fedBalance = payload.indicators.fedBalanceSheet;
    const tga = payload.indicators.tga;
    const rrp = payload.indicators.rrp;

    const netLiquidityData: IndicatorDataPoint[] = fedBalance.data.map((point, idx) => {
      const assets = point.value;
      const tgaVal = tga.data[idx]?.value || 0;
      const rrpVal = rrp.data[idx]?.value || 0;
      // Convert B$ to T$
      const liq = assets - (tgaVal + rrpVal) / 1000;
      return {
        date: point.date,
        value: parseFloat(liq.toFixed(3))
      };
    });

    const len = netLiquidityData.length;
    const current = netLiquidityData[len - 1].value;
    const previous = netLiquidityData[len - 2].value;
    let trend: 'UP' | 'DOWN' | 'FLAT' = 'FLAT';
    if (current > previous) trend = 'UP';
    if (current < previous) trend = 'DOWN';

    return {
      name: 'Federal Reserve Net Liquidity Proxy',
      unit: 'T$',
      category: 'Zentralbanken & Liquidität',
      current,
      previous,
      trend,
      data: netLiquidityData
    } as MacroIndicator;
  }, [payload]);

  if (loading) {
    return (
      <div className="bg-slate-900/60 backdrop-blur-md border border-slate-800 rounded-2xl p-8 text-slate-100 shadow-xl min-h-[450px] flex flex-col items-center justify-center space-y-4">
        <div className="w-10 h-10 rounded-full border-2 border-indigo-500 border-t-transparent animate-spin" />
        <div className="text-slate-400 text-sm font-mono animate-pulse">Lade makroökonomisches Datenarchiv...</div>
      </div>
    );
  }

  if (error || !payload) {
    return (
      <div className="bg-slate-900/60 backdrop-blur-md border border-slate-800 rounded-2xl p-6 text-slate-100 shadow-xl min-h-[400px] flex items-center justify-center">
        <div className="text-rose-400 font-semibold flex items-center gap-2">
          <AlertCircle className="w-5 h-5" /> {error || 'Fehler beim Laden.'}
        </div>
      </div>
    );
  }

  const indicators = payload.indicators;

  // Safe destructuring of all 21 indicators to guarantee no undefined layout shifts
  const {
    cpiYoY, coreCpi, ppi, savingsRate, ccDelinquency,
    nfp, unemployment, joblessClaims,
    fedFunds, ecbRefi, fedBalanceSheet, m2, rrp, tga, buffett,
    us10y, yieldSpread, hySpread, housingStarts, mortgageApps, caseShiller
  } = indicators;

  // Compute Ampel (traffic light) health states
  const getCard1Status = () => {
    const cpiVal = cpiYoY?.current ?? 0;
    const ccVal = ccDelinquency?.current ?? 0;
    const saveVal = savingsRate?.current ?? 5;
    if (cpiVal >= 3.0 || ccVal > 4.5 || saveVal < 3.0) return 'RED';
    if (cpiVal >= 2.5 || ccVal > 3.5 || saveVal < 4.0) return 'AMBER';
    return 'GREEN';
  };

  const getCard2Status = () => {
    const bufVal = buffett?.current ?? 0;
    const m2Trend = m2?.trend ?? 'FLAT';
    if (bufVal > 150.0 || m2Trend === 'DOWN') return 'RED';
    if (bufVal > 130.0 || (rrp && rrp.current < 400)) return 'AMBER';
    return 'GREEN';
  };

  const getCard3Status = () => {
    const yieldVal = yieldSpread?.current ?? 0;
    const hyVal = hySpread?.current ?? 0;
    if (yieldVal < 0.0 || hyVal > 5.0) return 'RED';
    if (yieldVal < 0.1 || hyVal > 4.0) return 'AMBER';
    return 'GREEN';
  };

  const card1Status = getCard1Status();
  const card2Status = getCard2Status();
  const card3Status = getCard3Status();

  // Helper to color trends/values based on macroeconomic threshold rules
  const getValHighlightClass = (key: string, val: number, trend: string) => {
    if (key === 'hySpread') {
      return val > 5.0 ? 'text-rose-400 font-bold animate-pulse' : 'text-slate-100';
    }
    if (key === 'yieldSpread') {
      return val < 0.0 ? 'text-rose-500 font-bold' : 'text-emerald-400';
    }
    if (key === 'cpiYoY' || key === 'coreCpi') {
      if (val <= 2.5) return 'text-emerald-400 font-semibold';
      if (val >= 3.0) return 'text-rose-400';
    }
    if (key === 'm2' && trend === 'DOWN') {
      return 'text-rose-400 font-bold animate-pulse';
    }
    if (key === 'rrp' && val < 400) {
      return 'text-rose-400';
    }
    if (key === 'buffett' && val > 150.0) {
      return 'text-rose-400 font-bold animate-pulse';
    }
    if (key === 'ccDelinquency' && val > 4.5) {
      return 'text-rose-400 font-bold animate-pulse';
    }
    if (key === 'savingsRate' && val < 3.0) {
      return 'text-rose-400 font-bold';
    }
    return 'text-slate-100';
  };

  // Helper for trend icons
  const renderTrendIcon = (trend: 'UP' | 'DOWN' | 'FLAT', key: string) => {
    const baseClass = "w-4 h-4 inline-block align-middle";
    const inverseIndicators = ['cpiYoY', 'coreCpi', 'ppi', 'unemployment', 'joblessClaims', 'hySpread', 'ccDelinquency', 'buffett'];
    const isInverse = inverseIndicators.includes(key);

    if (trend === 'UP') {
      return <ArrowUpRight className={`${baseClass} ${isInverse ? 'text-rose-400' : 'text-emerald-400'}`} />;
    }
    if (trend === 'DOWN') {
      return <ArrowDownRight className={`${baseClass} ${isInverse ? 'text-emerald-400' : 'text-rose-400'}`} />;
    }
    return <Minus className={`${baseClass} text-slate-500`} />;
  };

  // Render individual row helper
  const renderRow = (key: string, ind: MacroIndicator) => {
    if (!ind) return null;
    const inverseIndicators = ['cpiYoY', 'coreCpi', 'ppi', 'unemployment', 'joblessClaims', 'hySpread', 'ccDelinquency', 'buffett'];
    const isInverse = inverseIndicators.includes(key);
    const strokeColor = (ind.trend === 'UP' && isInverse) || (ind.trend === 'DOWN' && !isInverse) ? '#f43f5e' : '#10b981';

    return (
      <div key={key} className="bg-slate-950/40 border border-slate-850 rounded-xl p-3 flex justify-between items-center hover:bg-slate-950/60 transition-colors">
        <div className="space-y-0.5 max-w-[130px]">
          <div className="text-xs font-semibold text-slate-200 truncate" title={ind.name}>{ind.name}</div>
          <div className="text-[9px] text-slate-500 font-mono">Vorherig: {ind.previous === null || ind.previous === undefined ? '' : ind.previous}{ind.unit}</div>
        </div>

        {/* Micro Recharts Sparkline */}
        <div className="w-20 h-8">
          <ResponsiveContainer width="100%" height="100%">
            <LineChart data={ind.data}>
              <Line
                type="monotone"
                dataKey="value"
                stroke={strokeColor}
                strokeWidth={1.5}
                dot={false}
              />
            </LineChart>
          </ResponsiveContainer>
        </div>

        <div className="text-right">
          <div className={`font-mono text-sm font-bold ${getValHighlightClass(key, ind.current, ind.trend)}`}>
            {ind.current}{ind.unit}
          </div>
          <div className="text-[9px] flex items-center justify-end gap-0.5">
            {renderTrendIcon(ind.trend, key)}
            <span className="text-slate-500 font-mono capitalize">{ind.trend.toLowerCase()}</span>
          </div>
        </div>
      </div>
    );
  };

  return (
    <div className="space-y-6">
      
      {/* ⚠️ Dynamic Rate-Limit Override Warning Banner */}
      {!payload.liveDataAvailable && (
        <div className="bg-rose-950/40 border border-rose-800/80 text-rose-400 text-xs rounded-xl p-4 flex items-center gap-3 shadow-[0_0_15px_rgba(244,63,94,0.15)]">
          <AlertCircle className="w-5 h-5 text-rose-400 shrink-0" />
          <div className="flex-1">
            <span className="font-bold font-mono uppercase tracking-wider block mb-0.5">[⚠️ API Limit - Historical Archive Active]</span>
            Der Echtzeit-Datenabruf (Juni 2026) ist aufgrund von Ratenbeschränkungen (FMP HTTP 429) gedrosselt. Das System operiert im sicheren, gepufferten historischen Archiv-Modus.
          </div>
        </div>
      )}

      {/* SECTION 1: Header & Control Bar */}
      <div className="bg-slate-900/60 backdrop-blur-md border border-slate-800 rounded-2xl p-6 text-slate-100 shadow-xl relative overflow-hidden">
        <div className="absolute top-0 right-0 w-32 h-32 bg-indigo-500/10 rounded-full blur-3xl -z-10" />
        
        <div className="flex flex-col md:flex-row justify-between items-start md:items-center gap-4">
          <div className="space-y-1">
            <span className="text-indigo-400 text-xs font-semibold uppercase tracking-wider">Macroeconomics Silo</span>
            <h2 className="text-2xl font-extrabold text-white flex items-center gap-2">
              <Landmark className="text-indigo-400 w-6 h-6" /> Makroökonomische Indikatoren & Kredit-Silo
            </h2>
            <p className="text-xs text-slate-400">
              Analysiert Zyklen, Liquiditätsflüsse und Zinskurven über die letzten 24 Monate.
            </p>
          </div>
          
          <div className="flex items-center gap-3 w-full md:w-auto justify-end">
            <button
              onClick={() => setIsMathModalOpen(true)}
              className="flex items-center gap-1.5 px-4 py-2.5 rounded-xl bg-slate-955/80 hover:bg-slate-900 border border-slate-800 hover:border-slate-700 transition-all font-semibold text-xs tracking-wider text-indigo-400 w-full md:w-auto justify-center h-11 cursor-pointer"
            >
              <BookOpen className="w-4 h-4" />
              <span>📖 Modulerklärung</span>
            </button>
            
            <div className="bg-slate-955/80 border border-slate-800 rounded-xl px-4 py-2 text-right shrink-0 h-11 flex flex-col justify-center">
              <div className="text-[9px] text-slate-555 uppercase font-mono">Letztes Update</div>
              <div className="font-mono text-xs text-slate-300">
                {new Date(payload.timestamp).toLocaleTimeString()}
              </div>
            </div>
          </div>
        </div>
      </div>

      {/* 🏛️ SECTION 1.5: 3 Large Glowing Neon-Ampel Cards */}
      <div className="grid grid-cols-1 md:grid-cols-3 gap-6">
        
        {/* CARD 1: Inflation & Konsum-Stress */}
        <div className={`bg-slate-900/60 backdrop-blur-md border rounded-2xl p-5 text-slate-100 shadow-xl transition-all relative overflow-hidden ${
          card1Status === 'RED' ? 'border-rose-500/30 shadow-[0_0_20px_rgba(244,63,94,0.15)] bg-gradient-to-br from-slate-900 via-slate-900 to-rose-950/10' :
          card1Status === 'AMBER' ? 'border-amber-500/30 shadow-[0_0_20px_rgba(245,158,11,0.15)] bg-gradient-to-br from-slate-900 via-slate-900 to-amber-950/10' :
          'border-emerald-500/30 shadow-[0_0_20px_rgba(16,185,129,0.15)] bg-gradient-to-br from-slate-900 via-slate-900 to-emerald-950/10'
        }`}>
          <div className="absolute top-0 right-0 w-24 h-24 bg-rose-500/5 rounded-full blur-2xl -z-10" />
          <div className="flex justify-between items-start">
            <div className="space-y-1">
              <span className="text-slate-400 text-[10px] font-mono uppercase tracking-wider">Kategorie 1</span>
              <h4 className="text-sm font-bold text-slate-200">Inflation & Konsum-Stress</h4>
            </div>
            {/* Glowing Neon-Ampel Light */}
            <div className={`w-3 h-3 rounded-full ${
              card1Status === 'RED' ? 'bg-rose-500 shadow-[0_0_12px_rgba(244,63,94,0.85)] animate-pulse' :
              card1Status === 'AMBER' ? 'bg-amber-500 shadow-[0_0_12px_rgba(245,158,11,0.85)] animate-pulse' :
              'bg-emerald-500 shadow-[0_0_12px_rgba(16,185,129,0.85)] animate-pulse'
            }`} />
          </div>
          <div className="mt-4 space-y-3">
            <div className="text-xs text-slate-400">
              Risiko-Status:{' '}
              <span className={`font-bold ${
                card1Status === 'RED' ? 'text-rose-400' : card1Status === 'AMBER' ? 'text-amber-400' : 'text-emerald-400'
              }`}>
                {card1Status === 'RED' ? '🚨 Kritischer Konsumdruck' : card1Status === 'AMBER' ? '⚠️ Erhöhtes Risiko' : '✅ Stabil'}
              </span>
            </div>
            <div className="grid grid-cols-3 gap-2 pt-2 border-t border-slate-800/60 text-center font-mono">
              <div>
                <div className="text-[10px] text-slate-500">CPI</div>
                <div className={`text-xs font-bold ${cpiYoY && cpiYoY.current >= 3.0 ? 'text-rose-400' : 'text-slate-200'}`}>
                  {cpiYoY ? cpiYoY.current.toFixed(1) : '0.0'}%
                </div>
              </div>
              <div>
                <div className="text-[10px] text-slate-500">Sparquote</div>
                <div className={`text-xs font-bold ${savingsRate && savingsRate.current < 3.0 ? 'text-rose-400' : 'text-slate-200'}`}>
                  {savingsRate ? savingsRate.current.toFixed(1) : '0.0'}%
                </div>
              </div>
              <div>
                <div className="text-[10px] text-slate-500">Ausfälle</div>
                <div className={`text-xs font-bold ${ccDelinquency && ccDelinquency.current > 4.5 ? 'text-rose-400' : 'text-slate-200'}`}>
                  {ccDelinquency ? ccDelinquency.current.toFixed(1) : '0.0'}%
                </div>
              </div>
            </div>
          </div>
        </div>

        {/* CARD 2: Bewertung & Liquidität */}
        <div className={`bg-slate-900/60 backdrop-blur-md border rounded-2xl p-5 text-slate-100 shadow-xl transition-all relative overflow-hidden ${
          card2Status === 'RED' ? 'border-rose-500/30 shadow-[0_0_20px_rgba(244,63,94,0.15)] bg-gradient-to-br from-slate-900 via-slate-900 to-rose-950/10' :
          card2Status === 'AMBER' ? 'border-amber-500/30 shadow-[0_0_20px_rgba(245,158,11,0.15)] bg-gradient-to-br from-slate-900 via-slate-900 to-amber-950/10' :
          'border-emerald-500/30 shadow-[0_0_20px_rgba(16,185,129,0.15)] bg-gradient-to-br from-slate-900 via-slate-900 to-emerald-950/10'
        }`}>
          <div className="absolute top-0 right-0 w-24 h-24 bg-indigo-500/5 rounded-full blur-2xl -z-10" />
          <div className="flex justify-between items-start">
            <div className="space-y-1">
              <span className="text-slate-400 text-[10px] font-mono uppercase tracking-wider">Kategorie 2</span>
              <h4 className="text-sm font-bold text-slate-200">Bewertung & Liquidität</h4>
            </div>
            {/* Glowing Neon-Ampel Light */}
            <div className={`w-3 h-3 rounded-full ${
              card2Status === 'RED' ? 'bg-rose-500 shadow-[0_0_12px_rgba(244,63,94,0.85)] animate-pulse' :
              card2Status === 'AMBER' ? 'bg-amber-500 shadow-[0_0_12px_rgba(245,158,11,0.85)] animate-pulse' :
              'bg-emerald-500 shadow-[0_0_12px_rgba(16,185,129,0.85)] animate-pulse'
            }`} />
          </div>
          <div className="mt-4 space-y-3">
            <div className="text-xs text-slate-400">
              Risiko-Status:{' '}
              <span className={`font-bold ${
                card2Status === 'RED' ? 'text-rose-400' : card2Status === 'AMBER' ? 'text-amber-400' : 'text-emerald-400'
              }`}>
                {card2Status === 'RED' ? '🚨 Extreme Überbewertung' : card2Status === 'AMBER' ? '⚠️ Liquiditäts-Engpass' : '✅ Ausreichend'}
              </span>
            </div>
            <div className="grid grid-cols-2 gap-2 pt-2 border-t border-slate-800/60 text-center font-mono">
              <div>
                <div className="text-[10px] text-slate-500">Buffett Indicator</div>
                <div className={`text-xs font-bold ${buffett && buffett.current > 150.0 ? 'text-rose-400' : 'text-slate-200'}`}>
                  {buffett ? buffett.current.toFixed(1) : '0.0'}%
                </div>
              </div>
              <div>
                <div className="text-[10px] text-slate-500">Net Fed Liquidity</div>
                <div className="text-xs font-bold text-indigo-300">
                  {netLiquidityIndicator ? netLiquidityIndicator.current.toFixed(2) : '0.0'} T$
                </div>
              </div>
            </div>
          </div>
        </div>

        {/* CARD 3: Kredit- & Rezessionsrisiko */}
        <div className={`bg-slate-900/60 backdrop-blur-md border rounded-2xl p-5 text-slate-100 shadow-xl transition-all relative overflow-hidden ${
          card3Status === 'RED' ? 'border-rose-500/30 shadow-[0_0_20px_rgba(244,63,94,0.15)] bg-gradient-to-br from-slate-900 via-slate-900 to-rose-950/10' :
          card3Status === 'AMBER' ? 'border-amber-500/30 shadow-[0_0_20px_rgba(245,158,11,0.15)] bg-gradient-to-br from-slate-900 via-slate-900 to-amber-950/10' :
          'border-emerald-500/30 shadow-[0_0_20px_rgba(16,185,129,0.15)] bg-gradient-to-br from-slate-900 via-slate-900 to-emerald-950/10'
        }`}>
          <div className="absolute top-0 right-0 w-24 h-24 bg-emerald-500/5 rounded-full blur-2xl -z-10" />
          <div className="flex justify-between items-start">
            <div className="space-y-1">
              <span className="text-slate-400 text-[10px] font-mono uppercase tracking-wider">Kategorie 3</span>
              <h4 className="text-sm font-bold text-slate-200">Kredit- & Rezessionsrisiko</h4>
            </div>
            {/* Glowing Neon-Ampel Light */}
            <div className={`w-3 h-3 rounded-full ${
              card3Status === 'RED' ? 'bg-rose-500 shadow-[0_0_12px_rgba(244,63,94,0.85)] animate-pulse' :
              card3Status === 'AMBER' ? 'bg-amber-500 shadow-[0_0_12px_rgba(245,158,11,0.85)] animate-pulse' :
              'bg-emerald-500 shadow-[0_0_12px_rgba(16,185,129,0.85)] animate-pulse'
            }`} />
          </div>
          <div className="mt-4 space-y-3">
            <div className="text-xs text-slate-400">
              Risiko-Status:{' '}
              <span className={`font-bold ${
                card3Status === 'RED' ? 'text-rose-400' : card3Status === 'AMBER' ? 'text-amber-400' : 'text-emerald-400'
              }`}>
                {card3Status === 'RED' ? '🚨 Rezessions-Inversion' : card3Status === 'AMBER' ? '⚠️ Zinskurven-Warnung' : '✅ Stabil'}
              </span>
            </div>
            <div className="grid grid-cols-2 gap-2 pt-2 border-t border-slate-800/60 text-center font-mono">
              <div>
                <div className="text-[10px] text-slate-500">2S10S Spread</div>
                <div className={`text-xs font-bold ${yieldSpread && yieldSpread.current < 0 ? 'text-rose-400' : 'text-emerald-400'}`}>
                  {yieldSpread ? (yieldSpread.current >= 0 ? '+' : '') + yieldSpread.current.toFixed(2) : '0.00'}%
                </div>
              </div>
              <div>
                <div className="text-[10px] text-slate-500">High-Yield Spread</div>
                <div className={`text-xs font-bold ${hySpread && hySpread.current > 5.0 ? 'text-rose-400' : 'text-slate-200'}`}>
                  {hySpread ? hySpread.current.toFixed(1) : '0.0'}%
                </div>
              </div>
            </div>
          </div>
        </div>

      </div>

      {/* SECTION 2: Accordion for Detailed Economic Data 3-Grid Panels */}
      <div className="bg-slate-900/40 backdrop-blur-md border border-slate-800 rounded-2xl overflow-hidden shadow-xl">
        <button
          onClick={() => setIsAccordionOpen(!isAccordionOpen)}
          className="w-full px-6 py-4 flex items-center justify-between hover:bg-slate-900/60 transition-all font-bold text-sm text-slate-200 cursor-pointer"
        >
          <div className="flex items-center gap-2">
            <Activity className="w-5 h-5 text-indigo-400" />
            <span>🏛️ Detailliertes makroökonomisches Indikatoren-Hauptbuch (21 Indikatoren)</span>
          </div>
          <div className="flex items-center gap-2">
            <span className="text-xs text-slate-500 font-mono">
              {isAccordionOpen ? 'Einklappen' : 'Ausklappen'}
            </span>
            <div className="text-slate-400">
              {isAccordionOpen ? <ChevronUp className="w-4 h-4" /> : <ChevronDown className="w-4 h-4" />}
            </div>
          </div>
        </button>
        
        {isAccordionOpen && (
          <div className="p-6 border-t border-slate-800/80 space-y-6 bg-slate-950/20">
            
            <div className="grid grid-cols-1 lg:grid-cols-3 gap-6">
              
              {/* PANEL 1: Inflation & Wachstum */}
              <div className="bg-slate-900/60 backdrop-blur-md border border-slate-800 rounded-2xl p-5 text-slate-100 shadow-xl space-y-4">
                <div className="border-b border-slate-800 pb-3 flex items-center justify-between">
                  <h3 className="font-bold text-sm text-white flex items-center gap-2">
                    <Activity className="w-4 h-4 text-emerald-400" /> Inflation & Wachstum
                  </h3>
                  <span className="text-[10px] bg-emerald-500/10 text-emerald-400 border border-emerald-500/20 px-2 py-0.5 rounded font-mono font-bold">Real-Data</span>
                </div>

                <div className="space-y-4">
                  {renderRow('cpiYoY', cpiYoY)}
                  {renderRow('coreCpi', coreCpi)}
                  {renderRow('ppi', ppi)}
                  {renderRow('savingsRate', savingsRate)}
                  {renderRow('ccDelinquency', ccDelinquency)}
                </div>
              </div>

              {/* PANEL 2: Zentralbanken & Liquidität */}
              <div className="bg-slate-900/60 backdrop-blur-md border border-slate-800 rounded-2xl p-5 text-slate-100 shadow-xl space-y-4">
                <div className="border-b border-slate-800 pb-3 flex items-center justify-between">
                  <h3 className="font-bold text-sm text-white flex items-center gap-2">
                    <Coins className="w-4 h-4 text-indigo-400" /> Zentralbanken & Liquidität
                  </h3>
                  <span className="text-[10px] bg-indigo-500/10 text-indigo-400 border border-indigo-500/20 px-2 py-0.5 rounded font-mono font-bold">M2 / RRP / TGA</span>
                </div>

                <div className="space-y-4">
                  {renderRow('fedFunds', fedFunds)}
                  {renderRow('ecbRefi', ecbRefi)}
                  {renderRow('fedBalanceSheet', fedBalanceSheet)}
                  {renderRow('m2', m2)}
                  {renderRow('rrp', rrp)}
                  {renderRow('tga', tga)}
                  {renderRow('buffett', buffett)}

                  {/* Dynamic Calculated Net Liquidity Proxy Row */}
                  {netLiquidityIndicator && (
                    <div className="bg-indigo-950/20 border border-indigo-900/50 rounded-xl p-3 flex justify-between items-center hover:bg-indigo-950/30 transition-colors">
                      <div className="space-y-0.5 max-w-[130px]">
                        <div className="text-xs font-bold text-indigo-300 truncate" title={netLiquidityIndicator.name}>
                          Net Fed Liquidity
                        </div>
                        <div className="text-[9px] text-indigo-400/70 font-mono">Vorherig: {netLiquidityIndicator.previous}{netLiquidityIndicator.unit}</div>
                      </div>

                      {/* Micro Recharts Sparkline */}
                      <div className="w-20 h-8">
                        <ResponsiveContainer width="100%" height="100%">
                          <LineChart data={netLiquidityIndicator.data}>
                            <Line
                              type="monotone"
                              dataKey="value"
                              stroke="#818cf8"
                              strokeWidth={2}
                              dot={false}
                            />
                          </LineChart>
                        </ResponsiveContainer>
                      </div>

                      <div className="text-right">
                        <div className="font-mono text-sm font-extrabold text-indigo-300">
                          {netLiquidityIndicator.current}{netLiquidityIndicator.unit}
                        </div>
                        <div className="text-[9px] flex items-center justify-end gap-0.5">
                          {renderTrendIcon(netLiquidityIndicator.trend, 'netLiquidity')}
                          <span className="text-indigo-400 font-mono capitalize">{netLiquidityIndicator.trend.toLowerCase()}</span>
                        </div>
                      </div>
                    </div>
                  )}
                </div>
              </div>

              {/* PANEL 3: Kredit- & Anleihemarkt */}
              <div className="bg-slate-900/60 backdrop-blur-md border border-slate-800 rounded-2xl p-5 text-slate-100 shadow-xl space-y-4">
                <div className="border-b border-slate-800 pb-3 flex items-center justify-between">
                  <h3 className="font-bold text-sm text-white flex items-center gap-2">
                    <ShieldAlert className="w-4 h-4 text-rose-400" /> Kredit- & Anleihemarkt
                  </h3>
                  <span className="text-[10px] bg-rose-500/10 text-rose-400 border border-rose-500/20 px-2 py-0.5 rounded font-mono font-bold">Zinskurven & Spreads</span>
                </div>

                <div className="space-y-4">
                  {renderRow('us10y', us10y)}
                  {renderRow('yieldSpread', yieldSpread)}
                  {renderRow('hySpread', hySpread)}

                  {/* Sub-section named "Immobilien- & Hypotheken-Kredite" */}
                  <div className="border-t border-slate-800/80 pt-4 mt-4">
                    <h4 className="text-xs font-bold text-indigo-400 uppercase tracking-wider font-mono mb-3 flex items-center gap-1.5">
                      <Landmark className="w-3.5 h-3.5" /> Immobilien- & Hypotheken-Kredite
                    </h4>
                  </div>

                  {renderRow('housingStarts', housingStarts)}
                  {renderRow('mortgageApps', mortgageApps)}
                  {renderRow('caseShiller', caseShiller)}
                </div>
              </div>

            </div>

          </div>
        )}
      </div>

      {/* SECTION 3: Dynamic Macro analysis and explanation */}
      <div className="bg-slate-900/60 backdrop-blur-md border border-slate-800 rounded-2xl p-6 text-slate-100 shadow-xl space-y-4">
        <h3 className="font-bold text-sm text-slate-200">Systemische Macro- & Kreditmarkt-Analyse</h3>
        <p className="text-xs text-slate-400 leading-relaxed">
          Zinskurveninversionen (z. B. wenn der <span className="text-indigo-400 font-semibold font-mono">2S10S-Yield-Spread</span> negativ ist) gelten historisch als zuverlässige Vorläufer ökonomischer Kontraktionen. Derzeit beträgt der Spread <span className="text-emerald-400 font-bold font-mono">{yieldSpread !== undefined ? (yieldSpread.current >= 0 ? '+' : '') + yieldSpread.current.toFixed(2) : '0.00'}%</span>. Gleichzeitig signalisiert der Buffett-Indikator mit <span className="text-rose-400 font-bold font-mono">{buffett !== undefined ? buffett.current.toFixed(1) : '0.0'}%</span> eine erhebliche Überbewertung des US-Aktienmarktes relativ zur Wirtschaftsleistung. Im Konsumsektor deutet die Kombination aus einer niedrigen Sparquote (<span className="text-amber-400 font-mono">{savingsRate !== undefined ? savingsRate.current.toFixed(1) : '0.0'}%</span>) und steigenden Kreditkartenausfällen (<span className="text-rose-400 font-mono">{ccDelinquency !== undefined ? ccDelinquency.current.toFixed(1) : '0.0'}%</span>) auf echten Stress hin, während der High-Yield Credit Spread (<span className="text-slate-300 font-bold font-mono">{hySpread !== undefined ? hySpread.current.toFixed(1) : '0.0'}%</span>) noch Stabilität anzeigt. 
          Monetäre Liquidität (<span className="font-bold text-indigo-300 font-mono">Net Fed Liquidity Proxy: {netLiquidityIndicator ? netLiquidityIndicator.current.toFixed(2) : '0.00'} T$</span>) wirkt als zentraler Impulsgeber: Ein Anstieg des TGA-Volumens oder der RRP-Nutzung zieht freie Liquidität aus dem Bankensystem ab (Bremswirkung für Aktien/Krypto), während ein Abbau dieser Posten zusätzliche Liquidität freisetzt (Rückenwind für Risk Assets).
        </p>
      </div>

      <MacroMathModal isOpen={isMathModalOpen} onClose={() => setIsMathModalOpen(false)} />
    </div>
  );
}