// EL PURO - SilkNet OS Core Engine (Authoritative Server Synchronization)

const INITIAL_GAME_STATE = {
    cash: 25.0,
    cleanBonds: 0,
    totalCleanBonds: 0,
    heat: 0.0,
    totalEarned: 0.0,
    activeTab: 'lab',
    buyMode: '1',
    stats: {
        totalProduced: 0.0,
        totalSold: 0.0,
        totalSupplied: 0.0,
        purityProcs: 0,
        raidsSurvived: 0,
        prestigeCount: 0
    },
    drugs: {},
    skills: {},
    achievements: {},      // { [achId]: claimed_tier_int }
    offshorePerks: {},     // { [perkId]: level_int }
    synthesis: {},
    lastTick: Date.now()
};

// Initialize drugs state
DRUG_CATALOG.forEach(d => {
    INITIAL_GAME_STATE.drugs[d.id] = {
        unlocked: d.unlockedDefault,
        raw: 0.0,
        product: 0.0,
        suppliers: 0,
        workers: 0,
        dealers: 0
    };
});

SKILL_TREE.forEach(s => {
    INITIAL_GAME_STATE.skills[s.id] = false;
});

ACHIEVEMENT_TIERS.forEach(a => {
    INITIAL_GAME_STATE.achievements[a.id] = 0;
});

OFFSHORE_PERKS.forEach(p => {
    INITIAL_GAME_STATE.offshorePerks[p.id] = 0;
});

SYNTHESIS_RECIPES.forEach(r => {
    INITIAL_GAME_STATE.synthesis[r.id] = 0;
});

let G = JSON.parse(JSON.stringify(INITIAL_GAME_STATE));
let cashRateTracker = 0.0;
let pendingActions = []; // Actions queued waiting to be debounced & flushed
let inFlightActions = []; // Actions currently travelling in an active HTTP request
let actionSeq = 0; // Monotonic sequence ID
let syncDebounceTimer = null; // 300ms debounce timer for rapid clicking
let isSyncing = false; // Network in-flight flag

// --- NUMBER FORMATTING HELPER (Max 1 decimal, graceful fallback) ---
function fmtNum(val) {
    if (val === undefined || val === null || isNaN(val) || !isFinite(val)) return '0';
    const rounded = Math.round(Number(val) * 10) / 10;
    return rounded.toLocaleString(undefined, { minimumFractionDigits: 1, maximumFractionDigits: 1 });
}

function fmtInt(val) {
    if (val === undefined || val === null || isNaN(val) || !isFinite(val)) return '0';
    return Math.floor(Math.max(0, Number(val))).toLocaleString();
}

// --- DOM CACHE ---
const dom = {
    cash: document.getElementById('hud-cash'),
    rate: document.getElementById('hud-rate'),
    bonds: document.getElementById('hud-bonds'),
    multiplier: document.getElementById('hud-multiplier'),
    heatPct: document.getElementById('heat-pct'),
    heatBar: document.getElementById('heat-bar-fill'),
    viewport: document.getElementById('main-viewport'),
    clock: document.getElementById('system-clock'),
    userBadge: document.getElementById('user-badge'),
    authModal: document.getElementById('auth-modal'),
    raidModal: document.getElementById('raid-modal'),
    raidBribeCost: document.getElementById('raid-bribe-cost'),
    toastContainer: document.getElementById('toast-container'),
    quickStash: document.getElementById('quick-stash-items'),
    trophyBadge: document.getElementById('trophy-badge')
};

// --- MILESTONES & BULK FORMULAS ---
function getUnitMilestoneMultiplier(count) {
    const reached = UNIT_MILESTONES.filter(m => count >= m).length;
    return Math.pow(2, reached);
}

function getNextMilestone(count) {
    const next = UNIT_MILESTONES.find(m => m > count);
    return next || (Math.floor(count / 1000) + 1) * 1000;
}

function getAllTierMilestoneMultiplier(unitKey) {
    const unlocked = DRUG_CATALOG.filter(d => G.drugs[d.id] && G.drugs[d.id].unlocked);
    if (!unlocked.length) return 1.0;
    const minCount = Math.min(...unlocked.map(d => (G.drugs[d.id] && G.drugs[d.id][unitKey]) || 0));
    const reached = UNIT_MILESTONES.filter(m => minCount >= m).length;
    return Math.pow(2, reached);
}

function getPriceScaling() {
    const discountLvl = (G.offshorePerks && G.offshorePerks['bulk_discount']) || 0;
    return Math.max(1.10, 1.15 - (discountLvl * 0.01));
}

// Geometric Series Cost: sum of baseCost * r^(count + i) for i = 0 to n-1
function getGeometricBulkCost(baseCost, currentCount, n) {
    if (n <= 0) return 0;
    const r = getPriceScaling();
    const firstTerm = baseCost * Math.pow(r, currentCount);
    if (n === 1) return Math.floor(firstTerm);
    const total = firstTerm * (Math.pow(r, n) - 1.0) / (r - 1.0);
    return Math.floor(total);
}

// Maximum units affordable with available cash
function getMaxAffordableUnits(baseCost, currentCount, availableCash) {
    if (availableCash <= 0) return 0;
    const r = getPriceScaling();
    const firstTerm = baseCost * Math.pow(r, currentCount);
    if (availableCash < firstTerm) return 0;
    const numerator = availableCash * (r - 1.0);
    const n = Math.floor(Math.log(1.0 + (numerator / firstTerm)) / Math.log(r));
    return Math.max(0, n);
}

// Helper to determine exact unit count & total price based on active G.buyMode
function getUnitPurchaseInfo(drugId, unitType) {
    const config = DRUG_CATALOG.find(d => d.id === drugId);
    const data = G.drugs[drugId] || { suppliers: 0, workers: 0, dealers: 0 };
    const currentCount = data[unitType] || 0;
    const baseCost = unitType === 'suppliers' ? (config.supplierCost || 75)
                   : unitType === 'workers' ? config.workerCost
                   : config.dealerCost;

    let qty = 1;
    if (G.buyMode === '10') {
        qty = 10;
    } else if (G.buyMode === '100') {
        qty = 100;
    } else if (G.buyMode === 'next') {
        const nextM = getNextMilestone(currentCount);
        qty = Math.max(1, nextM - currentCount);
    } else if (G.buyMode === 'max') {
        const maxQty = getMaxAffordableUnits(baseCost, currentCount, G.cash);
        qty = Math.max(1, maxQty);
    }

    const totalCost = getGeometricBulkCost(baseCost, currentCount, qty);
    return { qty, totalCost, baseCost, currentCount };
}

function getRawPurchaseInfo(drugId) {
    const d = DRUG_CATALOG.find(x => x.id === drugId);
    const unitCost = Math.floor(d.rawCost * getRawCostMultiplier());
    let qty = 1;
    if (G.buyMode === '10') qty = 10;
    else if (G.buyMode === '100') qty = 100;
    else if (G.buyMode === 'next') qty = 25;
    else if (G.buyMode === 'max') qty = Math.max(1, Math.floor(G.cash / unitCost));

    const totalCost = unitCost * qty;
    return { qty, totalCost };
}

// --- MULTIPLIERS & BONUSES ---
function getProductionMultiplier() {
    let m = 1.0;
    const totalBonds = Math.max(G.totalCleanBonds || 0, G.cleanBonds || 0);
    m += totalBonds * 0.03;
    if (G.skills['chem_1']) m += 0.15;

    // Tiered achievements
    const synthTier = (G.achievements && G.achievements['master_synthesizer']) || 0;
    m += [0, 0.05, 0.10, 0.15, 0.25, 0.50][Math.min(5, synthTier)];
    const formTier = (G.achievements && G.achievements['formula_expansion']) || 0;
    m += [0, 0.05, 0.10, 0.15, 0.30][Math.min(4, formTier)];

    return m;
}

function getSellPriceMultiplier() {
    let m = 1.0;
    const totalBonds = Math.max(G.totalCleanBonds || 0, G.cleanBonds || 0);
    const compoundLvl = (G.offshorePerks && G.offshorePerks['compound_interest']) || 0;
    const bondRate = 0.04 + (compoundLvl * 0.02);
    m += totalBonds * bondRate;
    if (G.skills['king_2']) m += 0.25;

    const empireTier = (G.achievements && G.achievements['dirty_empire']) || 0;
    m += [0, 0.05, 0.10, 0.15, 0.25, 0.50][Math.min(5, empireTier)];

    return m;
}

function getRawCostMultiplier() {
    let m = 1.0;
    if (G.skills['chem_2']) m *= 0.85;
    const vaultTier = (G.achievements && G.achievements['vault_hoarder']) || 0;
    const discount = [0, 0.05, 0.10, 0.15, 0.25][Math.min(4, vaultTier)];
    return Math.max(0.1, m - discount);
}

function getDealerSpeedMultiplier() {
    let m = 1.0;
    if (G.skills['king_1']) m += 0.20;
    if (G.skills['king_3']) m += 0.50;
    const streetTier = (G.achievements && G.achievements['street_monopoly']) || 0;
    m += [0, 0.05, 0.10, 0.15, 0.25, 0.50][Math.min(5, streetTier)];

    const armyTier = (G.achievements && G.achievements['syndicate_army']) || 0;
    m *= (1.0 + [0, 0.05, 0.10, 0.15, 0.25][Math.min(4, armyTier)]);
    return m;
}

function getSupplierSpeedMultiplier() {
    let m = 1.0;
    const supplyTier = (G.achievements && G.achievements['supply_baron']) || 0;
    m += [0, 0.05, 0.10, 0.15, 0.25][Math.min(4, supplyTier)];

    const armyTier = (G.achievements && G.achievements['syndicate_army']) || 0;
    m *= (1.0 + [0, 0.05, 0.10, 0.15, 0.25][Math.min(4, armyTier)]);
    return m;
}

function getWorkerSpeedMultiplier() {
    let m = 1.0;
    const armyTier = (G.achievements && G.achievements['syndicate_army']) || 0;
    m *= (1.0 + [0, 0.05, 0.10, 0.15, 0.25][Math.min(4, armyTier)]);
    return m;
}

function getUnlockCost(drugId) {
    return DRUG_CATALOG.find(d => d.id === drugId).unlockCost;
}

// --- NOTIFICATIONS (TOASTS) ---
function showToast(msg, isDanger = false) {
    const toast = document.createElement('div');
    toast.className = `toast ${isDanger ? 'danger' : ''}`;
    toast.textContent = msg;
    dom.toastContainer.appendChild(toast);
    setTimeout(() => {
        toast.style.opacity = '0';
        setTimeout(() => toast.remove(), 400);
    }, 2800);
}

// --- TAB SWITCHING ---
function setTab(tabId) {
    G.activeTab = tabId;
    document.querySelectorAll('.nav-tab').forEach(b => {
        b.classList.toggle('active', b.dataset.tab === tabId);
    });
    renderViewport();
}

// --- RENDER VIEWPORT ---
function renderViewport() {
    if (G.activeTab === 'lab') {
        renderLabView();
    } else if (G.activeTab === 'streets') {
        renderStreetsView();
    } else if (G.activeTab === 'trophies') {
        renderTrophiesView();
    } else if (G.activeTab === 'tree') {
        renderSkillTreeView();
    } else if (G.activeTab === 'offshore') {
        renderOffshoreView();
    }
}

// 1. LAB VIEW
function renderLabView() {
    let html = `
        <div style="font-family: var(--font-mono); font-size: 0.72rem; color: var(--text-secondary); margin-bottom: 4px; display: flex; justify-content: space-between;">
            <span>ACTIVE LABORATORIES</span>
            <span>SYNTHESIS LEVEL: ${G.cleanBonds}</span>
        </div>
    `;

    DRUG_CATALOG.forEach(d => {
        const data = G.drugs[d.id] || { raw: 0, product: 0, suppliers: 0, workers: 0, dealers: 0, unlocked: false };
        if (!data.unlocked) {
            const unlockCost = getUnlockCost(d.id);
            html += `
                <div class="card locked">
                    <div class="card-header">
                        <div class="card-title-group">
                            <div class="drug-icon-box" style="border-color: ${d.color}; color: ${d.color}">
                                <iconify-icon icon="${d.icon}"></iconify-icon>
                            </div>
                            <div>
                                <div class="card-title">${d.name}</div>
                                <div style="font-size: 0.68rem; color: var(--text-secondary); font-family: var(--font-mono);">CLASSIFIED FORMULA</div>
                            </div>
                        </div>
                    </div>
                    <div class="unlock-overlay-box">
                        <button id="btn-unlock-${d.id}" class="btn-unlock" onclick="unlockDrug('${d.id}')" ${G.cash < unlockCost ? 'disabled' : ''}>
                            <iconify-icon icon="lucide:lock-open"></iconify-icon>
                            Acquire Formula ($${unlockCost.toLocaleString()})
                        </button>
                    </div>
                </div>
            `;
            return;
        }

        const suppliers = data.suppliers || 0;
        const workers = data.workers || 0;
        const supplyRate = d.supplyRate || 1.0;
        const supMilestoneM = getUnitMilestoneMultiplier(suppliers);
        const workMilestoneM = getUnitMilestoneMultiplier(workers);
        const allTierSupM = getAllTierMilestoneMultiplier('suppliers');
        const allTierWorkM = getAllTierMilestoneMultiplier('workers');

        const autoSupplySpeed = suppliers * supplyRate * getProductionMultiplier() * getSupplierSpeedMultiplier() * supMilestoneM * allTierSupM;
        const autoProdSpeed = workers * d.produceRate * getProductionMultiplier() * getWorkerSpeedMultiplier() * workMilestoneM * allTierWorkM;

        const nextSupM = getNextMilestone(suppliers);
        const nextWorkM = getNextMilestone(workers);

        const rawInfo = getRawPurchaseInfo(d.id);
        const supInfo = getUnitPurchaseInfo(d.id, 'suppliers');
        const workInfo = getUnitPurchaseInfo(d.id, 'workers');

        html += `
            <div class="card" style="border-left: 4px solid ${d.color};">
                <div class="card-header">
                    <div class="card-title-group">
                        <div class="drug-icon-box" style="border-color: ${d.color}; color: ${d.color}">
                            <iconify-icon icon="${d.icon}"></iconify-icon>
                        </div>
                        <div>
                            <div class="card-title">${d.name}</div>
                            <div style="font-size: 0.68rem; color: var(--text-secondary); font-family: var(--font-mono); display: flex; flex-wrap: wrap; gap: 4px; align-items: center;">
                                <span id="val-supplier-count-${d.id}">${d.supplierName}s: ${suppliers}</span>
                                <span class="milestone-badge" title="Next 2x speed at ${nextSupM}">M: ${suppliers}/${nextSupM} (${supMilestoneM}x)</span>
                                <span id="val-auto-supply-${d.id}" style="color: ${suppliers > 0 ? '#38bdf8' : '#8b949e'};">
                                    (+${fmtNum(autoSupplySpeed)} r/s)
                                </span>
                                <span>•</span>
                                <span id="val-worker-count-${d.id}">${d.workerName}s: ${workers}</span>
                                <span class="milestone-badge" title="Next 2x speed at ${nextWorkM}">M: ${workers}/${nextWorkM} (${workMilestoneM}x)</span>
                                <span id="val-auto-prod-${d.id}" style="color: ${workers > 0 ? '#4ade80' : '#8b949e'};">
                                    (${fmtNum(autoProdSpeed)}g/s)
                                </span>
                            </div>
                        </div>
                    </div>
                    <div style="font-family: var(--font-mono); font-size: 0.65rem; color: #8b949e; text-align: right; background: #0c1117; padding: 4px 8px; border-radius: 6px; border: 1px solid #1f2937;">
                        <span>Auto-Refines</span><br>
                        <span style="color: #4ade80;">1 Raw ➔ 1g</span>
                    </div>
                </div>

                <div class="card-stats-row">
                    <div class="stat-item">
                        <span class="stat-label">RAW SUPPLY (${d.rawName.toUpperCase()})</span>
                        <span class="stat-value" id="val-raw-${d.id}">${fmtNum(data.raw)}</span>
                    </div>
                    <div class="stat-item">
                        <span class="stat-label">READY PRODUCT (${d.productName.toUpperCase()})</span>
                        <span class="stat-value" id="val-prod-${d.id}">${fmtNum(data.product)}g</span>
                    </div>
                </div>

                <div class="btn-grid-actions">
                    <button id="btn-buy-raw-${d.id}" class="btn-tactical" onclick="buyRaw('${d.id}')" ${G.cash < rawInfo.totalCost ? 'disabled' : ''}>
                        Buy Raw (+${rawInfo.qty})
                        <span class="btn-subtext">$${rawInfo.totalCost.toLocaleString()}</span>
                    </button>
                    <button id="btn-make-${d.id}" class="btn-tactical btn-primary-action" onclick="manufacture('${d.id}')" ${data.raw < 1 ? 'disabled' : ''}>
                        Synthesize
                        <span class="btn-subtext">1 Raw -> 1g</span>
                    </button>
                    <button id="btn-sell-${d.id}" class="btn-tactical btn-sell-action" onclick="sellManual('${d.id}')" ${data.product < 1 ? 'disabled' : ''}>
                        Quick Deal
                        <span class="btn-subtext">+$${Math.floor(d.sellPrice * getSellPriceMultiplier()).toLocaleString()}</span>
                    </button>
                </div>

                <div class="btn-grid-auto">
                    <button id="btn-hire-supplier-${d.id}" class="btn-tactical" onclick="hireSupplier('${d.id}')" ${G.cash < supInfo.totalCost ? 'disabled' : ''}>
                        Hire ${d.supplierName} (+${supInfo.qty})
                        <span class="btn-subtext">$${supInfo.totalCost.toLocaleString()}</span>
                    </button>
                    <button id="btn-hire-worker-${d.id}" class="btn-tactical" onclick="hireWorker('${d.id}')" ${G.cash < workInfo.totalCost ? 'disabled' : ''}>
                        Hire ${d.workerName} (+${workInfo.qty})
                        <span class="btn-subtext">$${workInfo.totalCost.toLocaleString()}</span>
                    </button>
                </div>
            </div>
        `;
    });

    dom.viewport.innerHTML = html;
}

// 2. STREETS VIEW (Dealers & Blends)
function renderStreetsView() {
    let html = `
        <div style="font-family: var(--font-mono); font-size: 0.72rem; color: var(--text-secondary); margin-bottom: 4px;">
            STREET DISTRIBUTION & DEALER NETWORK
        </div>
    `;

    DRUG_CATALOG.filter(d => G.drugs[d.id] && G.drugs[d.id].unlocked).forEach(d => {
        const data = G.drugs[d.id];
        const dealers = data.dealers || 0;
        const dealMilestoneM = getUnitMilestoneMultiplier(dealers);
        const allTierDealM = getAllTierMilestoneMultiplier('dealers');
        const dealInfo = getUnitPurchaseInfo(d.id, 'dealers');
        const nextDealM = getNextMilestone(dealers);
        const unitPrice = Math.floor(d.sellPrice * getSellPriceMultiplier());
        const dealSpeed = dealers * d.sellRate * getDealerSpeedMultiplier() * dealMilestoneM * allTierDealM;

        html += `
            <div class="card" style="border-left: 4px solid ${d.color};">
                <div class="card-header">
                    <div class="card-title-group">
                        <div class="drug-icon-box" style="border-color: ${d.color}; color: ${d.color}">
                            <iconify-icon icon="${d.icon}"></iconify-icon>
                        </div>
                        <div>
                            <div class="card-title">${d.name}</div>
                            <div style="font-size: 0.68rem; color: var(--text-secondary); font-family: var(--font-mono); display: flex; align-items: center; gap: 6px;">
                                <span>${d.dealerName}s: ${dealers}</span>
                                <span class="milestone-badge" title="Next 2x speed at ${nextDealM}">M: ${dealers}/${nextDealM} (${dealMilestoneM}x)</span>
                            </div>
                        </div>
                    </div>
                    <div style="text-align: right; font-family: var(--font-mono); font-size: 0.8rem; color: var(--brand-gold);">
                        $${unitPrice.toLocaleString()}/g
                    </div>
                </div>

                <div class="card-stats-row">
                    <div class="stat-item">
                        <span class="stat-label">In Stash</span>
                        <span class="stat-value" id="val-prod-street-${d.id}">${fmtNum(data.product)}g</span>
                    </div>
                    <div class="stat-item">
                        <span class="stat-label">Deal Speed</span>
                        <span class="stat-value">${fmtNum(dealSpeed)}/s</span>
                    </div>
                </div>

                <div class="btn-grid-auto">
                    <button id="btn-hire-dealer-${d.id}" class="btn-tactical btn-sell-action" onclick="hireDealer('${d.id}')" ${G.cash < dealInfo.totalCost ? 'disabled' : ''}>
                        Hire ${d.dealerName} (+${dealInfo.qty})
                        <span class="btn-subtext">$${dealInfo.totalCost.toLocaleString()}</span>
                    </button>
                    <button id="btn-sell-10x-${d.id}" class="btn-tactical" onclick="sellManual('${d.id}', 10)" ${data.product < 10 ? 'disabled' : ''}>
                        Sell 10x Stash
                        <span class="btn-subtext">+$${(unitPrice * Math.min(10, Math.floor(data.product))).toLocaleString()}</span>
                    </button>
                </div>
            </div>
        `;
    });

    // RECIPE SYNTHESIS SECTION
    html += `
        <div style="font-family: var(--font-mono); font-size: 0.72rem; color: var(--brand-gold); margin: 14px 0 4px; display: flex; align-items: center; gap: 6px;">
            <iconify-icon icon="game-icons:cauldron"></iconify-icon>
            DESIGNER COCKTAILS & BLENDS
        </div>
    `;

    SYNTHESIS_RECIPES.forEach(r => {
        const canCook = Object.entries(r.ingredients).every(([drugId, reqAmount]) => {
            return G.drugs[drugId] && G.drugs[drugId].product >= reqAmount;
        });

        const ingrLabels = Object.entries(r.ingredients).map(([id, amt]) => {
            const has = G.drugs[id] ? G.drugs[id].product : 0;
            const drugDef = DRUG_CATALOG.find(d => d.id === id);
            return `<span style="color: ${has >= amt ? '#22c55e' : '#ef4444'}">${amt}g ${drugDef.name} (${fmtNum(has)}g)</span>`;
        }).join(' + ');

        html += `
            <div class="card" style="border: 1px solid #384654;">
                <div class="card-header">
                    <div class="card-title-group">
                        <div class="drug-icon-box" style="color: var(--brand-gold);">
                            <iconify-icon icon="${r.icon}"></iconify-icon>
                        </div>
                        <div>
                            <div class="card-title">${r.name}</div>
                            <div style="font-size: 0.68rem; color: var(--text-secondary);">${r.description}</div>
                        </div>
                    </div>
                </div>
                <div style="font-family: var(--font-mono); font-size: 0.72rem; background: #121820; padding: 6px 10px; border-radius: 6px; margin-bottom: 8px;">
                    Recipe: ${ingrLabels}
                </div>
                <button class="btn-tactical btn-sell-action" onclick="blendRecipe('${r.id}')" ${!canCook ? 'disabled' : ''}>
                    Cook & Distribute Blend
                    <span class="btn-subtext">Instant Payout: +$${r.sellPrice.toLocaleString()}</span>
                </button>
            </div>
        `;
    });

    dom.viewport.innerHTML = html;
}

// 3. SKILL TREE (SPIDERWEB)
function renderSkillTreeView() {
    let html = `
        <div style="font-family: var(--font-mono); font-size: 0.72rem; color: var(--text-secondary); margin-bottom: 6px;">
            UNDERWORLD TALENT SPIDERWEB
        </div>
    `;

    const branches = [
        { id: 'chemist', name: 'Path of the Chemist', icon: 'game-icons:chemical-drop', color: '#00e5ff' },
        { id: 'kingpin', name: 'Path of the Kingpin', icon: 'game-icons:crown', color: '#eab308' },
        { id: 'smuggler', name: 'Path of the Smuggler', icon: 'game-icons:stealth-bomber', color: '#a855f7' }
    ];

    branches.forEach(b => {
        html += `
            <div style="font-family: var(--font-mono); font-size: 0.75rem; color: ${b.color}; margin: 8px 0 4px; display: flex; align-items: center; gap: 6px;">
                <iconify-icon icon="${b.icon}"></iconify-icon>
                ${b.name.toUpperCase()}
            </div>
        `;

        const skillsInBranch = SKILL_TREE.filter(s => s.branch === b.id);
        skillsInBranch.forEach(s => {
            const isUnlocked = G.skills[s.id];
            const prereqsMet = s.prereqs.every(req => G.skills[req]);

            html += `
                <div class="card ${isUnlocked ? '' : prereqsMet ? '' : 'locked'}" style="margin-bottom: 8px;">
                    <div style="display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 6px;">
                        <div>
                            <div style="font-weight: bold; font-size: 0.85rem; color: ${isUnlocked ? b.color : '#fff'};">
                                ${s.name} ${isUnlocked ? '✓' : ''}
                            </div>
                            <div style="font-size: 0.72rem; color: var(--text-secondary);">${s.desc}</div>
                        </div>
                        <div style="font-family: var(--font-mono); font-size: 0.8rem; color: var(--brand-gold);">
                            ${isUnlocked ? '<span style="color:#22c55e;">ACQUIRED</span>' : '$' + s.cost.toLocaleString()}
                        </div>
                    </div>
                    ${!isUnlocked ? `
                        <button class="btn-tactical" onclick="buySkill('${s.id}')" ${G.cash < s.cost || !prereqsMet ? 'disabled' : ''}>
                            ${!prereqsMet ? 'Requires Prior Link' : 'Unlock Node ($' + s.cost.toLocaleString() + ')'}
                        </button>
                    ` : ''}
                </div>
            `;
        });
    });

    dom.viewport.innerHTML = html;
}

// 3. TROPHIES VIEW (Multi-Tiered Achievements)
function renderTrophiesView() {
    let html = `
        <div style="font-family: var(--font-mono); font-size: 0.72rem; color: var(--text-secondary); margin-bottom: 6px; display: flex; justify-content: space-between; align-items: center;">
            <span>SYNDICATE TROPHIES & CAREER MILESTONES</span>
            <span style="color: var(--brand-gold);">CAREER VOL: $${fmtNum(G.totalEarned)}</span>
        </div>
    `;

    ACHIEVEMENT_TIERS.forEach(ach => {
        const currentTier = (G.achievements && G.achievements[ach.id]) || 0;
        const maxTier = ach.tiers.length;
        const isMaxed = currentTier >= maxTier;

        // Current stat progress
        let currentVal = 0;
        if (ach.statKey === 'totalEarned') currentVal = G.totalEarned || 0;
        else if (ach.statKey === 'cash') currentVal = G.cash || 0;
        else if (ach.statKey === 'totalPersonnel') {
            currentVal = Object.values(G.drugs || {}).reduce((sum, d) => sum + (d.suppliers || 0) + (d.workers || 0) + (d.dealers || 0), 0);
        } else if (ach.statKey === 'unlockedCount') {
            currentVal = Object.values(G.drugs || {}).filter(d => d.unlocked).length;
        } else {
            currentVal = (G.stats && G.stats[ach.statKey]) || 0;
        }

        const nextTierInfo = isMaxed ? ach.tiers[maxTier - 1] : ach.tiers[currentTier];
        const nextReq = nextTierInfo.req;
        const progressPct = isMaxed ? 100 : Math.min(100, Math.floor((currentVal / nextReq) * 100));
        const canClaim = !isMaxed && currentVal >= nextReq;

        // Star rating: ★★★★☆
        let stars = '';
        for (let i = 1; i <= maxTier; i++) {
            stars += i <= currentTier ? '★' : '☆';
        }

        html += `
            <div class="trophy-card ${canClaim ? 'ready' : ''}">
                <div class="trophy-header">
                    <div class="trophy-title-group">
                        <div class="trophy-icon-box">
                            <iconify-icon icon="${ach.icon}"></iconify-icon>
                        </div>
                        <div>
                            <div class="trophy-title">${ach.name}</div>
                            <div class="trophy-tier-name" style="color: ${currentTier > 0 ? 'var(--brand-gold)' : '#8b949e'};">
                                ${currentTier > 0 ? ach.tiers[currentTier - 1].name : 'Unranked'}
                            </div>
                        </div>
                    </div>
                    <div class="trophy-stars" title="Tier ${currentTier}/${maxTier}">
                        ${stars}
                    </div>
                </div>

                <div style="font-size: 0.72rem; color: var(--text-secondary); line-height: 1.3;">
                    ${ach.desc}
                </div>

                <div class="trophy-progress-track">
                    <div class="trophy-progress-fill" style="width: ${progressPct}%;"></div>
                </div>

                <div style="display: flex; justify-content: space-between; font-size: 0.68rem; font-family: var(--font-mono); color: var(--text-muted);">
                    <span>${ach.formatValue(currentVal)} / ${ach.formatValue(nextReq)}</span>
                    <span style="color: ${canClaim ? '#22c55e' : '#9ca3af'};">${progressPct}%</span>
                </div>

                <div style="display: flex; justify-content: space-between; align-items: center; margin-top: 4px;">
                    <div style="font-family: var(--font-mono); font-size: 0.7rem; color: var(--neon-cyan);">
                        Reward: ${nextTierInfo.rewardDesc}
                    </div>
                    ${canClaim ? `
                        <button class="btn-claim-reward" onclick="claimAchievement('${ach.id}', ${currentTier + 1})">
                            CLAIM REWARD
                        </button>
                    ` : isMaxed ? `
                        <span style="font-family: var(--font-mono); font-size: 0.7rem; color: #22c55e; font-weight: bold;">MAX TIER REACHED</span>
                    ` : ''}
                </div>
            </div>
        `;
    });

    dom.viewport.innerHTML = html;
}

// 4. OFFSHORE (PRESTIGE & SWISS PERK SHOP)
function renderOffshoreView() {
    const totalLifetimeBonds = Math.max(G.totalCleanBonds || 0, G.cleanBonds || 0);
    const bondsToEarn = Math.floor(Math.sqrt(Math.max(0, G.totalEarned) / 25000));
    const nextBonds = Math.max(0, bondsToEarn - totalLifetimeBonds);
    const prodBoostPct = totalLifetimeBonds * 3;
    const compoundLvl = (G.offshorePerks && G.offshorePerks['compound_interest']) || 0;
    const salesRate = 4 + (compoundLvl * 2);
    const salesBoostPct = totalLifetimeBonds * salesRate;

    let html = `
        <div style="font-family: var(--font-mono); font-size: 0.72rem; color: var(--text-secondary); margin-bottom: 6px;">
            SWISS ACCOUNTS & MONEY LAUNDERING
        </div>

        <div class="card" style="border: 2px solid var(--neon-cyan); text-align: center; padding: 18px 14px;">
            <iconify-icon icon="game-icons:tied-scroll" style="font-size: 2.8rem; color: var(--neon-cyan);"></iconify-icon>
            <div style="font-size: 1.15rem; font-weight: bold; margin-top: 6px;">Launder Dirty Syndicate Cash</div>
            <p style="font-size: 0.76rem; color: var(--text-secondary); margin: 6px 0 12px; line-height: 1.4;">
                Reset dirty cash, lab equipment, and street dealers in exchange for permanent <b>Clean Offshore Bonds</b>.
                Total lifetime bonds grant permanent passive boosts across all runs.
            </p>
            <div style="background: #090e13; border: 1px solid #1f2a36; border-radius: 8px; padding: 10px; margin-bottom: 12px; font-family: var(--font-mono);">
                <div style="font-size: 0.7rem; color: var(--text-secondary);">CLEAN BONDS GAINED UPON LAUNDERING:</div>
                <div style="font-size: 1.8rem; font-weight: 800; color: var(--neon-cyan);">+${nextBonds} Bonds</div>
                <div style="font-size: 0.68rem; color: var(--text-muted); margin-top: 2px;">
                    Career Volume: $${fmtNum(G.totalEarned)} • Lifetime Bonds: ${totalLifetimeBonds}
                </div>
                <div style="font-size: 0.68rem; color: #4ade80; margin-top: 4px;">
                    Current Passive Boost: +${prodBoostPct}% Production • +${salesBoostPct}% Sales Value
                </div>
            </div>
            <button class="btn-tactical btn-sell-action" style="padding: 10px; font-size: 0.85rem;" onclick="launderMoney()" ${nextBonds < 1 ? 'disabled' : ''}>
                ${nextBonds >= 1 ? 'Launder Cash & Reset Syndicate' : 'Need More Volume to Launder'}
            </button>
        </div>

        <div style="font-family: var(--font-mono); font-size: 0.75rem; color: var(--neon-cyan); margin: 16px 0 6px; display: flex; justify-content: space-between; align-items: center;">
            <span style="display: flex; align-items: center; gap: 6px;">
                <iconify-icon icon="game-icons:safe"></iconify-icon>
                SWISS BLACK MARKET PERKS
            </span>
            <span style="color: var(--brand-gold);">Spendable: ${G.cleanBonds || 0} Bonds</span>
        </div>
        <div class="perk-grid">
    `;

    OFFSHORE_PERKS.forEach(perk => {
        const currentLvl = (G.offshorePerks && G.offshorePerks[perk.id]) || 0;
        const maxLvl = perk.costs.length;
        const isMaxed = currentLvl >= maxLvl;
        const nextCost = isMaxed ? null : perk.costs[currentLvl];
        const canBuy = !isMaxed && (G.cleanBonds || 0) >= nextCost;

        html += `
            <div class="perk-card">
                <div class="perk-card-header">
                    <div style="display: flex; align-items: center; gap: 8px;">
                        <iconify-icon icon="${perk.icon}" style="font-size: 1.4rem; color: var(--neon-cyan);"></iconify-icon>
                        <div>
                            <div style="font-weight: bold; font-size: 0.82rem; color: #fff;">${perk.name}</div>
                            <div style="font-size: 0.68rem; color: var(--text-secondary);">${perk.desc}</div>
                        </div>
                    </div>
                    <span class="perk-lvl-badge">${currentLvl > 0 ? `LVL ${currentLvl}/${maxLvl}` : 'UNLOCKED 0'}</span>
                </div>
                <div style="display: flex; justify-content: space-between; align-items: center; margin-top: 4px;">
                    <span style="font-family: var(--font-mono); font-size: 0.7rem; color: #22c55e;">
                        ${currentLvl > 0 ? perk.formatBonus(currentLvl) : 'Inactive'}
                    </span>
                    <button class="btn-perk-buy" onclick="buyOffshorePerk('${perk.id}')" ${!canBuy ? 'disabled' : ''}>
                        ${isMaxed ? 'MAXED OUT' : `Invest ${nextCost} Bonds`}
                    </button>
                </div>
            </div>
        `;
    });

    html += `</div>`;
    dom.viewport.innerHTML = html;
}

// --- OPTIMISTIC CLIENT ACTIONS (Debounced Aggregation & Server Reconciliation) ---
function queueAction(action) {
    // Action aggregation: consolidate rapid repetitive clicks
    if (['buy_raw', 'manufacture', 'sell_manual'].includes(action.type)) {
        const existing = pendingActions.find(a => a.type === action.type && a.drug_id === action.drug_id);
        if (existing) {
            existing.amount = (existing.amount || 1) + (action.amount || 1);
            scheduleSync(300);
            return;
        }
    } else if (['hire_supplier', 'hire_worker', 'hire_dealer'].includes(action.type)) {
        const existing = pendingActions.find(a => a.type === action.type && a.drug_id === action.drug_id);
        if (existing) {
            existing.count = (existing.count || 1) + (action.count || 1);
            scheduleSync(300);
            return;
        }
    }

    pendingActions.push({ ...action });

    // Major discrete events flush immediately, micro-actions debounce 300ms
    if (['launder_prestige', 'bribe_police', 'flush_stash', 'unlock_drug', 'buy_skill', 'blend_recipe'].includes(action.type)) {
        scheduleSync(0);
    } else {
        scheduleSync(300);
    }
}

function buyRaw(drugId) {
    const rawInfo = getRawPurchaseInfo(drugId);
    if (G.cash >= rawInfo.totalCost && rawInfo.qty > 0) {
        G.cash -= rawInfo.totalCost;
        G.drugs[drugId].raw += rawInfo.qty;
        queueAction({ type: 'buy_raw', drug_id: drugId, amount: rawInfo.qty });
        updateLiveInventory();
    }
}

function manufacture(drugId) {
    const data = G.drugs[drugId];
    if (data.raw >= 1) {
        data.raw -= 1;
        let yieldCount = 1;
        if (G.skills['chem_3'] && Math.random() < 0.10) {
            yieldCount = 3;
            showToast('99.1% Purity Proc! 3x Yield!', false);
            if (!G.stats) G.stats = {};
            G.stats.purityProcs = (G.stats.purityProcs || 0) + 1;
        }
        data.product += yieldCount;
        if (!G.stats) G.stats = {};
        G.stats.totalProduced = (G.stats.totalProduced || 0) + yieldCount;
        addHeat(0.5);
        queueAction({ type: 'manufacture', drug_id: drugId, amount: 1 });
        checkAchievements();
        updateLiveInventory();
    }
}

function sellManual(drugId, amount = 1) {
    const d = DRUG_CATALOG.find(x => x.id === drugId);
    const data = G.drugs[drugId];
    const actual = Math.min(amount, Math.floor(data.product));
    if (actual > 0) {
        data.product -= actual;
        const profit = actual * Math.floor(d.sellPrice * getSellPriceMultiplier());
        G.cash += profit;
        G.totalEarned += profit;
        if (!G.stats) G.stats = {};
        G.stats.totalSold = (G.stats.totalSold || 0) + actual;
        addHeat(actual * 0.8);
        queueAction({ type: 'sell_manual', drug_id: drugId, amount: actual });
        checkAchievements();
        updateLiveInventory();
    }
}

function hireSupplier(drugId) {
    const supInfo = getUnitPurchaseInfo(drugId, 'suppliers');
    if (G.cash >= supInfo.totalCost && supInfo.qty > 0) {
        G.cash -= supInfo.totalCost;
        if (!G.drugs[drugId].suppliers) G.drugs[drugId].suppliers = 0;
        G.drugs[drugId].suppliers += supInfo.qty;
        queueAction({ type: 'hire_supplier', drug_id: drugId, count: supInfo.qty });
        checkAchievements();
        renderViewport();
        updateLiveInventory();
    }
}

function hireWorker(drugId) {
    const workInfo = getUnitPurchaseInfo(drugId, 'workers');
    if (G.cash >= workInfo.totalCost && workInfo.qty > 0) {
        G.cash -= workInfo.totalCost;
        G.drugs[drugId].workers = (G.drugs[drugId].workers || 0) + workInfo.qty;
        queueAction({ type: 'hire_worker', drug_id: drugId, count: workInfo.qty });
        checkAchievements();
        renderViewport();
        updateLiveInventory();
    }
}

function hireDealer(drugId) {
    const dealInfo = getUnitPurchaseInfo(drugId, 'dealers');
    if (G.cash >= dealInfo.totalCost && dealInfo.qty > 0) {
        G.cash -= dealInfo.totalCost;
        G.drugs[drugId].dealers = (G.drugs[drugId].dealers || 0) + dealInfo.qty;
        queueAction({ type: 'hire_dealer', drug_id: drugId, count: dealInfo.qty });
        checkAchievements();
        renderViewport();
        updateLiveInventory();
    }
}

function claimAchievement(achId, tier) {
    if (!G.achievements) G.achievements = {};
    const currentTier = G.achievements[achId] || 0;
    if (tier === currentTier + 1) {
        G.achievements[achId] = tier;
        queueAction({ type: 'claim_achievement', ach_id: achId, tier });
        const achDef = ACHIEVEMENT_TIERS.find(a => a.id === achId);
        const tierDef = achDef ? achDef.tiers[tier - 1] : null;
        showToast(`🏆 Claimed: ${achDef.name} - ${tierDef ? tierDef.name : ''}!`);
        checkAchievements();
        renderViewport();
        updateLiveInventory();
    }
}

function buyOffshorePerk(perkId) {
    if (!G.offshorePerks) G.offshorePerks = {};
    const perk = OFFSHORE_PERKS.find(p => p.id === perkId);
    if (!perk) return;
    const currentLvl = G.offshorePerks[perkId] || 0;
    if (currentLvl >= perk.costs.length) return;
    const cost = perk.costs[currentLvl];
    if ((G.cleanBonds || 0) >= cost) {
        G.cleanBonds -= cost;
        G.offshorePerks[perkId] = currentLvl + 1;
        queueAction({ type: 'buy_offshore_perk', perk_id: perkId });
        showToast(`Invested in ${perk.name} (Lvl ${currentLvl + 1})!`);
        renderViewport();
        updateLiveInventory();
    }
}

function unlockDrug(drugId) {
    const cost = getUnlockCost(drugId);
    if (G.cash >= cost && !G.drugs[drugId].unlocked) {
        G.cash -= cost;
        G.drugs[drugId].unlocked = true;
        
        // Check Procurement Pipeline perk
        const starterUnits = (G.offshorePerks && G.offshorePerks['auto_contracts']) || 0;
        if (starterUnits > 0) {
            G.drugs[drugId].suppliers = (G.drugs[drugId].suppliers || 0) + starterUnits;
            G.drugs[drugId].workers = (G.drugs[drugId].workers || 0) + starterUnits;
        }

        showToast(`Unlocked formula for ${DRUG_CATALOG.find(d => d.id === drugId).name}!`);
        queueAction({ type: 'unlock_drug', drug_id: drugId });
        checkAchievements();
        renderViewport();
        updateLiveInventory();
    }
}

function blendRecipe(recipeId) {
    const r = SYNTHESIS_RECIPES.find(x => x.id === recipeId);
    const canCook = Object.entries(r.ingredients).every(([drugId, amt]) => G.drugs[drugId].product >= amt);
    if (canCook) {
        Object.entries(r.ingredients).forEach(([drugId, amt]) => {
            G.drugs[drugId].product -= amt;
        });
        G.cash += r.sellPrice;
        G.totalEarned += r.sellPrice;
        addHeat(5);
        queueAction({ type: 'blend_recipe', recipe_id: recipeId });
        showToast(`Synthesized & Sold ${r.name} for +$${r.sellPrice.toLocaleString()}!`);
        renderViewport();
        updateLiveInventory();
    }
}

function buySkill(skillId) {
    const s = SKILL_TREE.find(x => x.id === skillId);
    if (G.cash >= s.cost && !G.skills[skillId]) {
        G.cash -= s.cost;
        G.skills[skillId] = true;
        queueAction({ type: 'buy_skill', skill_id: skillId });
        showToast(`Skill Activated: ${s.name}`);
        renderViewport();
        updateLiveInventory();
    }
}

function launderMoney() {
    const totalLifetimeBonds = Math.max(G.totalCleanBonds || 0, G.cleanBonds || 0);
    const bondsToEarn = Math.floor(Math.sqrt(Math.max(0, G.totalEarned) / 25000));
    const gain = Math.max(0, bondsToEarn - totalLifetimeBonds);
    if (gain < 1) return;

    if (confirm(`Launder all assets for +${gain} Clean Offshore Bonds? Your syndicate operations will reset with permanent perks retained.`)) {
        queueAction({ type: 'launder_prestige' });
        G.totalCleanBonds = totalLifetimeBonds + gain;
        G.cleanBonds = (G.cleanBonds || 0) + gain;
        if (!G.stats) G.stats = {};
        G.stats.prestigeCount = (G.stats.prestigeCount || 0) + 1;

        let startCash = 50.0 + (G.totalCleanBonds * 25.0);
        const swissTier = (G.achievements && G.achievements['swiss_kingpin']) || 0;
        if (swissTier >= 1) startCash += 250.0;
        if (swissTier >= 2) startCash += 2500.0;
        if (swissTier >= 3) startCash += 25000.0;
        if (swissTier >= 4) startCash += 250000.0;

        G.cash = startCash;
        G.heat = 0.0;
        const starterUnits = (G.offshorePerks && G.offshorePerks['auto_contracts']) || 0;
        DRUG_CATALOG.forEach(d => {
            G.drugs[d.id] = {
                unlocked: d.unlockedDefault,
                raw: 0.0,
                product: 0.0,
                suppliers: d.unlockedDefault ? starterUnits : 0,
                workers: d.unlockedDefault ? starterUnits : 0,
                dealers: 0
            };
        });
        checkAchievements();
        showToast(`Laundered! You now hold ${G.cleanBonds} Spendable Bonds ($${startCash.toLocaleString()} starting cash).`);
        renderViewport();
        updateLiveInventory();
    }
}

// --- POLICE HEAT & RAIDS ---
function addHeat(amount) {
    let riseMod = G.skills['smug_1'] ? 0.65 : 1.0;
    G.heat = Math.min(100.0, G.heat + (amount * riseMod));
}

function checkRaidEvent() {
    if (G.heat >= 85 && Math.random() < 0.25) {
        triggerRaidModal();
    }
}

function triggerRaidModal() {
    const bribeCost = Math.max(100, Math.floor(G.cash * 0.15 * (G.skills['smug_2'] ? 0.5 : 1.0)));
    dom.raidBribeCost.textContent = bribeCost.toLocaleString();
    dom.raidModal.classList.add('active');

    document.getElementById('btn-raid-bribe').onclick = () => {
        if (G.cash >= bribeCost) {
            G.cash -= bribeCost;
            G.heat = 0.0;
            queueAction({ type: 'bribe_police' });
            dom.raidModal.classList.remove('active');
            showToast('Sheriff bribed. Heat cleared.');
            updateLiveInventory();
        } else {
            showToast('Insufficient cash for bribe!', true);
        }
    };

    document.getElementById('btn-raid-stash').onclick = () => {
        G.heat = 20.0;
        queueAction({ type: 'flush_stash' });
        dom.raidModal.classList.remove('active');
        showToast('Stash flushed & secured. Heat diminished.');
        updateLiveInventory();
    };

    document.getElementById('btn-raid-shootout').onclick = () => {
        dom.raidModal.classList.remove('active');
        if (Math.random() < 0.5) {
            const reward = Math.floor(G.cash * 0.5);
            G.cash += reward;
            G.heat = 0.0;
            showToast(`Broke through blockade! Seized +$${reward.toLocaleString()}!`);
        } else {
            DRUG_CATALOG.forEach(d => {
                G.drugs[d.id].product = Math.floor(G.drugs[d.id].product * 0.7);
            });
            G.heat = 30.0;
            showToast('Agents seized 30% of stored product!', true);
        }
        updateLiveInventory();
    };
}

// --- ACHIEVEMENTS CHECK & BADGE UPDATE ---
function checkAchievements() {
    let unreadCount = 0;
    ACHIEVEMENT_TIERS.forEach(ach => {
        const currentTier = (G.achievements && G.achievements[ach.id]) || 0;
        const maxTier = ach.tiers.length;
        if (currentTier < maxTier) {
            let currentVal = 0;
            if (ach.statKey === 'totalEarned') currentVal = G.totalEarned || 0;
            else if (ach.statKey === 'cash') currentVal = G.cash || 0;
            else if (ach.statKey === 'totalPersonnel') {
                currentVal = Object.values(G.drugs || {}).reduce((sum, d) => sum + (d.suppliers || 0) + (d.workers || 0) + (d.dealers || 0), 0);
            } else if (ach.statKey === 'unlockedCount') {
                currentVal = Object.values(G.drugs || {}).filter(d => d.unlocked).length;
            } else {
                currentVal = (G.stats && G.stats[ach.statKey]) || 0;
            }

            const nextReq = ach.tiers[currentTier].req;
            if (currentVal >= nextReq) {
                unreadCount += 1;
            }
        }
    });

    if (dom.trophyBadge) {
        if (unreadCount > 0) {
            dom.trophyBadge.textContent = unreadCount;
            dom.trophyBadge.style.display = 'block';
        } else {
            dom.trophyBadge.style.display = 'none';
        }
    }
}

// --- LIGHTWEIGHT LOCAL TICK (Smooth 60FPS UI feedback between server syncs) ---
function clientTick(deltaSec) {
    let earnedThisTick = 0;
    const prodMulti = getProductionMultiplier();
    const sellMulti = getSellPriceMultiplier();
    const dealerSpeed = getDealerSpeedMultiplier();
    const supMulti = getSupplierSpeedMultiplier();
    const workMulti = getWorkerSpeedMultiplier();

    const allTierSupM = getAllTierMilestoneMultiplier('suppliers');
    const allTierWorkM = getAllTierMilestoneMultiplier('workers');
    const allTierDealM = getAllTierMilestoneMultiplier('dealers');

    DRUG_CATALOG.forEach(d => {
        const data = G.drugs[d.id];
        if (!data || !data.unlocked) return;

        // Auto Supply
        const suppliers = data.suppliers || 0;
        if (suppliers > 0) {
            const supMilestoneM = getUnitMilestoneMultiplier(suppliers);
            const supplyRate = d.supplyRate || 1.0;
            const toSupply = suppliers * supplyRate * prodMulti * supMulti * supMilestoneM * allTierSupM * deltaSec;
            data.raw = data.raw + toSupply;
            if (!G.stats) G.stats = {};
            G.stats.totalSupplied = (G.stats.totalSupplied || 0) + toSupply;
        }

        // Auto Production
        const workers = data.workers || 0;
        if (workers > 0 && data.raw > 0) {
            const workMilestoneM = getUnitMilestoneMultiplier(workers);
            const prodPerSec = workers * d.produceRate * prodMulti * workMulti * workMilestoneM * allTierWorkM;
            const toMake = Math.min(data.raw, prodPerSec * deltaSec);
            data.raw = Math.max(0, data.raw - toMake);
            data.product = data.product + toMake;
            if (!G.stats) G.stats = {};
            G.stats.totalProduced = (G.stats.totalProduced || 0) + toMake;
        }

        // Auto Sales
        const dealers = data.dealers || 0;
        if (dealers > 0 && data.product > 0) {
            const dealMilestoneM = getUnitMilestoneMultiplier(dealers);
            const sellPerSec = dealers * d.sellRate * dealerSpeed * dealMilestoneM * allTierDealM;
            const toSell = Math.min(data.product, sellPerSec * deltaSec);
            data.product = Math.max(0, data.product - toSell);
            const revenue = toSell * Math.floor(d.sellPrice * sellMulti);
            G.cash += revenue;
            G.totalEarned += revenue;
            earnedThisTick += revenue;
            if (!G.stats) G.stats = {};
            G.stats.totalSold = (G.stats.totalSold || 0) + toSell;
        }
    });

    if (G.heat > 0) {
        G.heat = Math.max(0.0, G.heat - (0.5 * deltaSec));
    }

    if (deltaSec > 0) {
        cashRateTracker = cashRateTracker * 0.85 + (earnedThisTick / deltaSec) * 0.15;
    }

    // Direct DOM text updates
    updateLiveInventory();
}

function updateLiveInventory() {
    dom.cash.textContent = fmtNum(G.cash);
    dom.rate.textContent = fmtNum(cashRateTracker);
    dom.bonds.textContent = fmtInt(G.cleanBonds || 0);
    const totalLifetimeBonds = Math.max(G.totalCleanBonds || 0, G.cleanBonds || 0);
    const compoundLvl = (G.offshorePerks && G.offshorePerks['compound_interest']) || 0;
    const bondRate = 4 + (compoundLvl * 2);
    dom.multiplier.textContent = fmtInt(totalLifetimeBonds * bondRate);
    dom.heatPct.textContent = `${Math.round(G.heat)}%`;
    dom.heatBar.style.width = `${Math.min(100, Math.round(G.heat))}%`;

    const prodMulti = getProductionMultiplier();
    const supMulti = getSupplierSpeedMultiplier();
    const workMulti = getWorkerSpeedMultiplier();
    const allTierSupM = getAllTierMilestoneMultiplier('suppliers');
    const allTierWorkM = getAllTierMilestoneMultiplier('workers');
    let stashChipsHtml = '';

    // Surgically update raw, product, buttons, and stash chips
    DRUG_CATALOG.forEach(d => {
        const drugData = G.drugs[d.id];
        if (!drugData) return;

        // Populate quick stash overview for owned/unlocked products
        if (drugData.unlocked || drugData.product > 0 || drugData.raw > 0) {
            stashChipsHtml += `
                <div class="stash-chip" title="${d.name}">
                    <span class="stash-chip-dot" style="background: ${d.color};"></span>
                    <span>${d.name.split(' ')[0]}:</span>
                    <span class="stash-chip-val" style="color: ${drugData.product > 0 ? '#fff' : '#6b7280'}">${fmtNum(drugData.product)}g</span>
                </div>
            `;
        }

        // Live text update for raw & product
        const rawEl = document.getElementById(`val-raw-${d.id}`);
        if (rawEl) rawEl.textContent = fmtNum(drugData.raw);

        const prodEl = document.getElementById(`val-prod-${d.id}`);
        if (prodEl) prodEl.textContent = `${fmtNum(drugData.product)}g`;

        const streetProdEl = document.getElementById(`val-prod-street-${d.id}`);
        if (streetProdEl) streetProdEl.textContent = `${fmtNum(drugData.product)}g`;

        const supplierCountEl = document.getElementById(`val-supplier-count-${d.id}`);
        if (supplierCountEl) supplierCountEl.textContent = `${d.supplierName}s: ${drugData.suppliers || 0}`;

        const autoSupplyEl = document.getElementById(`val-auto-supply-${d.id}`);
        if (autoSupplyEl) {
            const suppliers = drugData.suppliers || 0;
            const supMilestoneM = getUnitMilestoneMultiplier(suppliers);
            const currentSupplySpeed = suppliers * (d.supplyRate || 1.0) * prodMulti * supMulti * supMilestoneM * allTierSupM;
            autoSupplyEl.textContent = `(+${fmtNum(currentSupplySpeed)} r/s)`;
            autoSupplyEl.style.color = suppliers > 0 ? '#38bdf8' : '#8b949e';
        }

        const workerCountEl = document.getElementById(`val-worker-count-${d.id}`);
        if (workerCountEl) workerCountEl.textContent = `${d.workerName}s: ${drugData.workers || 0}`;

        const autoProdEl = document.getElementById(`val-auto-prod-${d.id}`);
        if (autoProdEl) {
            const workers = drugData.workers || 0;
            const workMilestoneM = getUnitMilestoneMultiplier(workers);
            const currentSpeed = workers * d.produceRate * prodMulti * workMulti * workMilestoneM * allTierWorkM;
            autoProdEl.textContent = `(${fmtNum(currentSpeed)}g/s)`;
            autoProdEl.style.color = (workers > 0 && drugData.raw > 0) ? '#4ade80' : '#8b949e';
        }

        // Multi-buy pricing & button states
        const rawInfo = getRawPurchaseInfo(d.id);
        const supInfo = getUnitPurchaseInfo(d.id, 'suppliers');
        const workInfo = getUnitPurchaseInfo(d.id, 'workers');
        const dealInfo = getUnitPurchaseInfo(d.id, 'dealers');

        const btnBuyRaw = document.getElementById(`btn-buy-raw-${d.id}`);
        if (btnBuyRaw) {
            btnBuyRaw.disabled = (G.cash < rawInfo.totalCost);
            btnBuyRaw.innerHTML = `Buy Raw (+${rawInfo.qty})<span class="btn-subtext">$${rawInfo.totalCost.toLocaleString()}</span>`;
        }

        const btnHireSupplier = document.getElementById(`btn-hire-supplier-${d.id}`);
        if (btnHireSupplier) {
            btnHireSupplier.disabled = (G.cash < supInfo.totalCost);
            btnHireSupplier.innerHTML = `Hire ${d.supplierName} (+${supInfo.qty})<span class="btn-subtext">$${supInfo.totalCost.toLocaleString()}</span>`;
        }

        const btnMake = document.getElementById(`btn-make-${d.id}`);
        if (btnMake) btnMake.disabled = (drugData.raw < 1);

        const btnSell = document.getElementById(`btn-sell-${d.id}`);
        if (btnSell) btnSell.disabled = (drugData.product < 1);

        const btnHireWorker = document.getElementById(`btn-hire-worker-${d.id}`);
        if (btnHireWorker) {
            btnHireWorker.disabled = (G.cash < workInfo.totalCost);
            btnHireWorker.innerHTML = `Hire ${d.workerName} (+${workInfo.qty})<span class="btn-subtext">$${workInfo.totalCost.toLocaleString()}</span>`;
        }

        const btnHireDealer = document.getElementById(`btn-hire-dealer-${d.id}`);
        if (btnHireDealer) {
            btnHireDealer.disabled = (G.cash < dealInfo.totalCost);
            btnHireDealer.innerHTML = `Hire ${d.dealerName} (+${dealInfo.qty})<span class="btn-subtext">$${dealInfo.totalCost.toLocaleString()}</span>`;
        }

        const btnSell10x = document.getElementById(`btn-sell-10x-${d.id}`);
        if (btnSell10x) btnSell10x.disabled = (drugData.product < 10);

        const btnUnlock = document.getElementById(`btn-unlock-${d.id}`);
        if (btnUnlock) btnUnlock.disabled = (G.cash < getUnlockCost(d.id));
    });

    if (dom.quickStash) {
        dom.quickStash.innerHTML = stashChipsHtml || '<span style="font-size: 0.65rem; color: #6b7280;">No active stash</span>';
    }
}

// --- AUTHORITATIVE SERVER SYNC & RECONCILIATION ---
function scheduleSync(delayMs = 300) {
    if (delayMs === 0) {
        if (syncDebounceTimer) {
            clearTimeout(syncDebounceTimer);
            syncDebounceTimer = null;
        }
        triggerServerSync();
        return;
    }
    if (syncDebounceTimer) clearTimeout(syncDebounceTimer);
    syncDebounceTimer = setTimeout(() => {
        syncDebounceTimer = null;
        triggerServerSync();
    }, delayMs);
}

function applyLocalActions(state, actions) {
    const rawCostMulti = getRawCostMultiplier();
    const sellPriceMulti = getSellPriceMultiplier();

    actions.forEach(act => {
        const dId = act.drug_id;
        const dCfg = DRUG_CATALOG.find(x => x.id === dId);
        if (act.type === 'claim_achievement') {
            if (!state.achievements) state.achievements = {};
            state.achievements[act.ach_id] = act.tier;
            return;
        }
        if (act.type === 'buy_offshore_perk') {
            if (!state.offshorePerks) state.offshorePerks = {};
            const curLvl = state.offshorePerks[act.perk_id] || 0;
            state.offshorePerks[act.perk_id] = curLvl + 1;
            return;
        }

        if (!state.drugs || !state.drugs[dId]) return;

        if (act.type === 'buy_raw' && dCfg) {
            const amount = act.amount || 1;
            const unitCost = Math.floor(dCfg.rawCost * rawCostMulti);
            const total = unitCost * amount;
            if (state.cash >= total) {
                state.cash -= total;
                state.drugs[dId].raw += amount;
            }
        } else if (act.type === 'manufacture') {
            const amount = act.amount || 1;
            const actual = Math.min(amount, Math.floor(state.drugs[dId].raw));
            if (actual > 0) {
                state.drugs[dId].raw -= actual;
                state.drugs[dId].product += actual;
            }
        } else if (act.type === 'sell_manual' && dCfg) {
            const amount = act.amount || 1;
            const actual = Math.min(amount, Math.floor(state.drugs[dId].product));
            if (actual > 0) {
                state.drugs[dId].product -= actual;
                const profit = actual * Math.floor(dCfg.sellPrice * sellPriceMulti);
                state.cash += profit;
                state.totalEarned += profit;
            }
        } else if (act.type === 'hire_supplier' && dCfg) {
            const count = act.count || 1;
            const baseCost = dCfg.supplierCost || 75;
            for (let i = 0; i < count; i++) {
                const currentCount = state.drugs[dId].suppliers || 0;
                const cost = Math.floor(baseCost * Math.pow(getPriceScaling(), currentCount));
                if (state.cash >= cost) {
                    state.cash -= cost;
                    state.drugs[dId].suppliers = currentCount + 1;
                }
            }
        } else if (act.type === 'hire_worker' && dCfg) {
            const count = act.count || 1;
            const baseCost = dCfg.workerCost;
            for (let i = 0; i < count; i++) {
                const currentCount = state.drugs[dId].workers || 0;
                const cost = Math.floor(baseCost * Math.pow(getPriceScaling(), currentCount));
                if (state.cash >= cost) {
                    state.cash -= cost;
                    state.drugs[dId].workers = currentCount + 1;
                }
            }
        } else if (act.type === 'hire_dealer' && dCfg) {
            const count = act.count || 1;
            const baseCost = dCfg.dealerCost;
            for (let i = 0; i < count; i++) {
                const currentCount = state.drugs[dId].dealers || 0;
                const cost = Math.floor(baseCost * Math.pow(getPriceScaling(), currentCount));
                if (state.cash >= cost) {
                    state.cash -= cost;
                    state.drugs[dId].dealers = currentCount + 1;
                }
            }
        }
    });
}

async function triggerServerSync() {
    if (isSyncing) {
        // Postpone flush while another network request is in flight
        scheduleSync(200);
        return;
    }

    const actionsToSend = [...pendingActions];
    pendingActions = [];
    inFlightActions = [...actionsToSend];

    actionSeq += 1;
    const currentSeq = actionSeq;
    isSyncing = true;

    if (API.getToken()) {
        const response = await API.syncTick(actionsToSend, currentSeq);
        if (response && response.save_data) {
            const serverState = response.save_data;
            
            // Reconcile: Take authoritative server state as base
            const reconciled = {
                ...INITIAL_GAME_STATE,
                ...serverState,
                buyMode: G.buyMode,
                activeTab: G.activeTab
            };

            // In-flight actions have been committed to the server
            inFlightActions = [];

            // Apply any new actions that user clicked while the request was in flight
            if (pendingActions.length > 0) {
                applyLocalActions(reconciled, pendingActions);
            }

            G = reconciled;
            checkAchievements();
            updateLiveInventory();
        } else {
            // Network failure / offline: merge inFlight back to pending
            pendingActions = [...inFlightActions, ...pendingActions];
            inFlightActions = [];
        }
    } else {
        // Guest mode / offline fallback: persist locally
        inFlightActions = [];
        localStorage.setItem('el_puro_local_save', JSON.stringify(G));
    }

    isSyncing = false;

    // If new actions arrived during sync, flush them
    if (pendingActions.length > 0) {
        scheduleSync(300);
    }
}

// Game loop with requestAnimationFrame
let lastFrameTime = performance.now();
function gameLoop(now) {
    const delta = (now - lastFrameTime) / 1000;
    lastFrameTime = now;
    if (delta > 0 && delta < 5) {
        clientTick(delta);
    }
    requestAnimationFrame(gameLoop);
}

// Background heartbeat (every 10 seconds): syncs idle accrual when player is not actively clicking
setInterval(() => {
    if (!syncDebounceTimer && !isSyncing) {
        triggerServerSync();
    }
}, 10000);

// Clock updates
setInterval(() => {
    const d = new Date();
    dom.clock.textContent = d.toTimeString().substring(0, 5);
}, 1000);

// Periodic raid check (every 15 seconds)
setInterval(checkRaidEvent, 15000);

// --- INITIALIZATION & EVENTS ---
document.addEventListener('DOMContentLoaded', async () => {
    const username = API.getUsername();
    if (username) {
        dom.userBadge.textContent = `[${username}]`;
    }

    // Load initial authoritative save from server if logged in
    let loaded = false;
    if (API.getToken()) {
        const remote = await API.loadRemoteSave();
        if (remote) {
            G = { ...INITIAL_GAME_STATE, ...remote, activeTab: 'lab' };
            loaded = true;
        }
    }
    if (!loaded) {
        const local = localStorage.getItem('el_puro_local_save');
        if (local) {
            try {
                G = { ...INITIAL_GAME_STATE, ...JSON.parse(local), activeTab: 'lab' };
            } catch (e) {
                console.warn('Corrupt local save, using initial state');
            }
        }
    }

    // Setup navigation tabs
    document.querySelectorAll('.nav-tab').forEach(b => {
        b.addEventListener('click', () => setTab(b.dataset.tab));
    });

    // Setup Buy Multiplier Pill Buttons
    document.querySelectorAll('.btn-multi-pill').forEach(btn => {
        btn.addEventListener('click', () => {
            document.querySelectorAll('.btn-multi-pill').forEach(b => b.classList.remove('active'));
            btn.classList.add('active');
            G.buyMode = btn.dataset.mode;
            renderViewport();
            updateLiveInventory();
        });
    });

    // Auth Modal handling
    dom.userBadge.addEventListener('click', () => dom.authModal.classList.add('active'));
    document.getElementById('btn-close-auth').addEventListener('click', () => dom.authModal.classList.remove('active'));

    document.getElementById('btn-login-submit').addEventListener('click', async () => {
        const u = document.getElementById('auth-username').value.trim();
        const p = document.getElementById('auth-password').value;
        if (!u || !p) return showToast('Enter username and password', true);

        try {
            const res = await API.login(u, p);
            dom.userBadge.textContent = `[${res.username}]`;
            dom.authModal.classList.remove('active');
            showToast(`Connected: Welcome ${res.username}`);
            // Fetch server authoritative state
            const remote = await API.loadRemoteSave();
            if (remote) {
                G = { ...INITIAL_GAME_STATE, ...remote, activeTab: G.activeTab };
                renderViewport();
            }
        } catch (e) {
            showToast(e.message, true);
        }
    });

    document.getElementById('btn-register-submit').addEventListener('click', async () => {
        const u = document.getElementById('auth-username').value.trim();
        const p = document.getElementById('auth-password').value;
        const hp = document.getElementById('auth-website-hp').value;
        if (!u || !p) return showToast('Enter username and password', true);

        try {
            const res = await API.register(u, p, hp);
            dom.userBadge.textContent = `[${res.username}]`;
            dom.authModal.classList.remove('active');
            showToast(`Syndicate registered: ${res.username}`);
            // Fetch clean server initialized state
            const remote = await API.loadRemoteSave();
            if (remote) {
                G = { ...INITIAL_GAME_STATE, ...remote, activeTab: G.activeTab };
                renderViewport();
            }
        } catch (e) {
            showToast(e.message, true);
        }
    });

    renderViewport();
    checkAchievements();
    updateLiveInventory();
    requestAnimationFrame(gameLoop);
});