{{/* Hugo Blox: Dev HUD (floating button + panel). Dev only. */}}
<script>
(function(){
    try {
    const PLACEMENT = {{ (site.Params.hugoblox.debug.hud.position | default "bottom-left") | jsonify }};
    const OPACITY = {{ (site.Params.hugoblox.debug.hud.opacity | default 1.0) | jsonify }};
    const PLACEMENT_KEY = 'hbx-hud-placement';
    const HIDE_BUTTON_KEY = 'hbx-hide-button';
    const VALID_PLACEMENTS = ['bottom-left', 'bottom-center', 'bottom-right', 'top-left', 'top-center', 'top-right'];
    const FALLBACK_PLACEMENT = 'bottom-left';
    const isValidPlacement = (value) => VALID_PLACEMENTS.includes(value);
    const normalizePlacement = (value) => (typeof value === 'string' ? value.toLowerCase().trim() : '');
    const storedPlacement = normalizePlacement(localStorage.getItem(PLACEMENT_KEY));
    const defaultPlacement = normalizePlacement(PLACEMENT);
    const initialPlacement = isValidPlacement(storedPlacement) ? storedPlacement : (isValidPlacement(defaultPlacement) ? defaultPlacement : FALLBACK_PLACEMENT);
    let currentPlacement = initialPlacement;
    const initialHidePref = localStorage.getItem(HIDE_BUTTON_KEY) === '1';

    const root = document.createElement('div');
    root.id = 'hbx-dev-hud-root';
    root.style.all = 'initial';
    root.style.position = 'fixed';
    root.style.zIndex = '2147483647';
    root.style.pointerEvents = 'none';
    root.style.bottom = '16px';

    const shadow = root.attachShadow({ mode: 'open' });
    const style = document.createElement('style');
    style.textContent = `
        :host { all: initial; }
        .btn { pointer-events: auto; position:relative; display:inline-flex; align-items:center; justify-content:center; width:44px; height:44px; border-radius:9999px; background:#111418; color:#e6eaf0; border:1px solid #2a2f38; box-shadow: 0 10px 20px rgba(0,0,0,.25); cursor:pointer; }
        .btn:hover { filter: brightness(1.1); }
        .badge { position:absolute; top:-4px; right:-4px; min-width:18px; height:18px; padding:0 4px; border-radius:9999px; background:#ef4444; color:white; font: 600 11px/18px system-ui, sans-serif; text-align:center; }
        .panel { pointer-events:auto; position:fixed; width:min(92vw, 1200px); max-height:min(80vh, 800px); background:#0d1117; color:#e6eaf0; border:1px solid #21262d; border-radius:12px; box-shadow: 0 20px 40px rgba(0,0,0,.4); overflow:hidden; display:none; transform: translateX(var(--hbx-panel-offset-x, 0)) translateY(8px) scale(0.95); opacity:0; }
        .panel.open { display:flex; flex-direction:column; transform: translateX(var(--hbx-panel-offset-x, 0)) translateY(0) scale(1); opacity:1; }
        .panel-header { display:flex; align-items:center; gap:12px; padding:12px 16px; border-bottom:1px solid #21262d; background:#161b22; }
        .panel-header h2 { margin:0; font: 700 16px system-ui, sans-serif; letter-spacing:-0.01em; color:#f0f6fc; }
        .panel-header .close-btn { margin-left:auto; width:32px; height:32px; border:none; background:#21262d; color:#8b949e; border-radius:6px; cursor:pointer; font-size:16px; display:flex; align-items:center; justify-content:center; }
        .panel-header .close-btn:hover { background:#30363d; color:#f0f6fc; }
        .page-info { padding:16px; background:#0d1117; border-bottom:1px solid #21262d; }
        .page-info h3 { margin:0 0 12px 0; font: 600 14px system-ui, sans-serif; color:#f0f6fc; display:flex; align-items:center; gap:8px; }
        .page-info h3::before { content:'🔍'; font-size:16px; }
        .page-meta { display:grid; grid-template-columns:repeat(auto-fit, minmax(200px, 1fr)); gap:12px; }
        .meta-item { display:flex; flex-direction:column; gap:4px; }
        .meta-label { font: 500 11px system-ui, sans-serif; color:#8b949e; text-transform:uppercase; letter-spacing:0.5px; }
        .meta-value { font: 600 13px "SF Mono", Monaco, "Cascadia Code", "Roboto Mono", monospace; color:#79c0ff; background:#161b22; padding:6px 8px; border-radius:6px; border:1px solid #21262d; word-break:break-all; }
        .meta-value.type { color:#a5f3fc; }
        .meta-value.layout { color:#fbbf24; }
        .tabs { display:flex; background:#161b22; border-bottom:1px solid #21262d; }
        .tab { padding:12px 16px; font: 500 14px system-ui, sans-serif; color:#8b949e; cursor:pointer; border-bottom:2px solid transparent; }
        .tab:hover { color:#f0f6fc; }
        .tab.active { color:#58a6ff; border-bottom-color:#58a6ff; }
        .tab-content { flex:1; overflow:auto; }
        .env-info { padding:12px 16px; font: 500 11px system-ui, sans-serif; color:#8b949e; background:#0d1117; border-bottom:1px solid #21262d; display:flex; align-items:center; gap:16px; }
        .filters { display:flex; flex-wrap:wrap; gap:12px; align-items:center; margin-left:auto; justify-content:flex-end; }
        .filters label { display:inline-flex; gap:6px; align-items:center; font: 500 12px system-ui, sans-serif; color:#c9d2e1; cursor:pointer; }
        .filters select { appearance:none; background:#111418; border:1px solid #2a2f38; border-radius:6px; color:#e6eaf0; font: 500 12px system-ui, sans-serif; padding:6px 28px 6px 10px; min-width:140px; box-shadow: inset 0 1px 2px rgba(0,0,0,0.2); }
        .filters select:focus { outline:2px solid #2563eb; outline-offset:1px; }
        .logs-content { overflow:auto; }
        .entry { display:grid; grid-template-columns:auto 1fr auto; gap:12px; padding:12px 16px; border-bottom:1px solid #21262d; }
        .entry:hover { background:#161b22; }
        .entry .lvl { font:700 11px system-ui, sans-serif; text-transform:uppercase; padding:4px 6px; border-radius:4px; }
        .entry.error .lvl { color:#ffffff; background:#da3633; }
        .entry.warn .lvl { color:#1f2937; background:#f59e0b; }
        .entry.info .lvl { color:#ffffff; background:#1f6feb; }
        .entry .msg { white-space:pre-wrap; word-break:break-word; font: 400 13px system-ui, sans-serif; line-height:1.5; }
        .entry .meta { color:#8b949e; font: 500 11px "SF Mono", Monaco, monospace; }
        .page-group-header { padding:12px 16px; font: 600 12px system-ui, sans-serif; color:#58a6ff; border-bottom:1px solid #21262d; background:#0d1117; }
        @media (prefers-reduced-motion:no-preference) {
        .panel { transition: all .25s cubic-bezier(0.4, 0, 0.2, 1); }
        }
    `;
    shadow.appendChild(style);

    const btnWrap = document.createElement('div');
    btnWrap.style.position = 'relative';
    const btn = document.createElement('button');
    btn.className = 'btn';
    btn.style.opacity = String(OPACITY);
    btn.setAttribute('aria-label', 'Hugo Blox Dev HUD');
    btn.textContent = 'HB';
    const badge = document.createElement('span');
    badge.className = 'badge';
    badge.hidden = true;
    btnWrap.append(btn, badge);

    const panel = document.createElement('div');
    panel.className = 'panel';
    
    // Header
    const header = document.createElement('div');
    header.className = 'panel-header';
    const title = document.createElement('h2'); 
    title.textContent = 'Hugo Blox – Dev Tools';
    const close = document.createElement('button'); 
    close.className = 'close-btn'; 
    close.textContent = '×'; 
    close.title = 'Close';
    header.append(title, close);
    
    // Page Info Section
    const pageInfo = document.createElement('div');
    pageInfo.className = 'page-info';
    const pageTitle = document.createElement('h3');
    pageTitle.textContent = 'Current Page';
    const pageMeta = document.createElement('div');
    pageMeta.className = 'page-meta';
    pageInfo.append(pageTitle, pageMeta);
    
    // Environment Info
    const envInfo = document.createElement('div');
    envInfo.className = 'env-info';
    const env = document.createElement('div');
    env.textContent = '';
    const filters = document.createElement('div'); 
    filters.className = 'filters';
    const chkInfo = document.createElement('input'); 
    chkInfo.type='checkbox'; 
    chkInfo.id='hbx-info'; 
    chkInfo.checked = !!(localStorage.getItem('hbx-show-info')||'');
    const lblInfo = document.createElement('label'); 
    lblInfo.htmlFor='hbx-info'; 
    lblInfo.textContent='Show info';
    const chkAuto = document.createElement('input');
    chkAuto.type='checkbox';
    chkAuto.id='hbx-auto-open';
    chkAuto.checked = !!(localStorage.getItem('hbx-auto-open')||'');
    const lblAuto = document.createElement('label');
    lblAuto.htmlFor='hbx-auto-open';
    lblAuto.textContent='Auto open';
    const chkHide = document.createElement('input');
    chkHide.type = 'checkbox';
    chkHide.id = 'hbx-hide-button';
    chkHide.checked = initialHidePref;
    const lblHide = document.createElement('label');
    lblHide.htmlFor = 'hbx-hide-button';
    lblHide.textContent = 'Hide button';
    lblHide.title = 'When hidden, press Cmd/Ctrl + Shift + D to toggle the panel.';
    const placementLabel = document.createElement('label');
    placementLabel.htmlFor = 'hbx-placement';
    placementLabel.textContent = 'Button position';
    placementLabel.title = 'Choose where the floating button lives.';
    const placementSelect = document.createElement('select');
    placementSelect.id = 'hbx-placement';
    placementSelect.setAttribute('aria-label', 'Dev tools button placement');
    const appendPlacementOption = (value, text) => {
        const opt = document.createElement('option');
        opt.value = value;
        opt.textContent = text;
        placementSelect.append(opt);
    };
    appendPlacementOption('bottom-left', 'Bottom left');
    appendPlacementOption('bottom-center', 'Bottom center');
    appendPlacementOption('bottom-right', 'Bottom right');
    appendPlacementOption('top-left', 'Top left');
    appendPlacementOption('top-center', 'Top center');
    appendPlacementOption('top-right', 'Top right');
    placementSelect.value = initialPlacement;
    filters.append(lblInfo, chkInfo, lblAuto, chkAuto, lblHide, chkHide, placementLabel, placementSelect);
    envInfo.append(env, filters);
    
    // Tabs
    const tabs = document.createElement('div');
    tabs.className = 'tabs';
    const logsTab = document.createElement('div');
    logsTab.className = 'tab active';
    logsTab.textContent = 'Logs';
    logsTab.dataset.tab = 'logs';
    tabs.append(logsTab);
    
    // Tab Content
    const tabContent = document.createElement('div');
    tabContent.className = 'tab-content';
    const logsContent = document.createElement('div');
    logsContent.className = 'logs-content';
    tabContent.append(logsContent);
    
    panel.append(header, pageInfo, envInfo, tabs, tabContent);

    const setPlacement = (placement, persist = true) => {
        const nextPlacement = isValidPlacement(placement) ? placement : FALLBACK_PLACEMENT;
        currentPlacement = nextPlacement;
        root.style.top = '';
        root.style.bottom = '';
        root.style.left = '';
        root.style.right = '';
        root.style.transform = '';
        panel.style.top = '';
        panel.style.bottom = '';
        panel.style.left = '';
        panel.style.right = '';
        panel.style.setProperty('--hbx-panel-offset-x', '0');
        const isTop = nextPlacement.startsWith('top-');
        if (isTop) {
        root.style.top = '16px';
        panel.style.top = '72px';
        } else {
        root.style.bottom = '16px';
        panel.style.bottom = '72px';
        }
        if (nextPlacement.endsWith('left')) {
        root.style.left = '16px';
        panel.style.left = '16px';
        } else if (nextPlacement.endsWith('right')) {
        root.style.right = '16px';
        panel.style.right = '16px';
        } else {
        root.style.left = '50%';
        panel.style.left = '50%';
        root.style.transform = 'translateX(-50%)';
        panel.style.setProperty('--hbx-panel-offset-x', '-50%');
        }
        if (persist) {
        localStorage.setItem(PLACEMENT_KEY, nextPlacement);
        }
        placementSelect.value = nextPlacement;
    };

    const setButtonVisibility = (hidden, persist = true) => {
        btnWrap.hidden = hidden;
        if (persist) {
        localStorage.setItem(HIDE_BUTTON_KEY, hidden ? '1' : '');
        }
        chkHide.checked = hidden;
    };

    setPlacement(currentPlacement, false);
    setButtonVisibility(initialHidePref, false);

    shadow.append(btnWrap, panel);

    const attach = () => { if (!document.body.contains(root)) document.body.appendChild(root); };
    if (document.readyState === 'loading') document.addEventListener('DOMContentLoaded', attach);
    else attach();

    let logs = [];
    let meta = null;
    const setLogs = (payload) => { 
        if (payload) { 
        logs = Array.isArray(payload.entries) ? payload.entries : []; 
        meta = payload; 
        } else { 
        logs = []; 
        meta = null; 
        } 
    };
    const shouldShowInfo = () => chkInfo.checked;
    const createMetaItem = (label, value, className = '') => {
        const item = document.createElement('div');
        item.className = 'meta-item';
        const labelEl = document.createElement('div');
        labelEl.className = 'meta-label';
        labelEl.textContent = label;
        const valueEl = document.createElement('div');
        valueEl.className = `meta-value ${className}`;
        valueEl.textContent = value || '(not set)';
        item.append(labelEl, valueEl);
        return item;
    };

    const render = () => {
        
        // Update environment info
        if (meta && meta.hugo) {
        const hv = meta.hugo.version || '';
        const gvRaw = meta.hugo.goVersion || '';
        const gv = gvRaw.replace(/^go/i, '');
        const tw = meta.modules && meta.modules.bloxTailwind ? meta.modules.bloxTailwind.version : '';
        env.textContent = `Hugo ${hv} · Go ${gv}${tw ? ` · blox-tailwind ${tw}` : ''}`;
        }

        // Update page information
        pageMeta.replaceChildren();
        if (meta && meta.currentPage) {
        const page = meta.currentPage;
        pageMeta.append(
            createMetaItem('Type', page.type || 'unknown', 'type'),
            createMetaItem('Layout', page.layout || '(none)', 'layout'),
            createMetaItem('Kind', page.kind || 'unknown'),
            createMetaItem('Section', page.section || '(none)'),
            createMetaItem('Path', page.path || window.location.pathname),
            createMetaItem('File', page.file || '(virtual page)'),
            createMetaItem('Build ID', page.buildId || 'unknown')
        );
        } else {
        // Show placeholder data when meta isn't loaded yet
        pageMeta.append(
            createMetaItem('Type', 'loading...', 'type'),
            createMetaItem('Layout', 'loading...', 'layout'),
            createMetaItem('Kind', 'loading...'),
            createMetaItem('Section', 'loading...'),
            createMetaItem('Path', window.location.pathname),
            createMetaItem('File', 'loading...'),
            createMetaItem('Build ID', 'loading...')
        );
        }

        // Update logs
        const visible = logs.filter(e => e.level==='error' || e.level==='warn' || (e.level==='info' && shouldShowInfo()));
        const errs = visible.filter(e => e.level==='error').length;
        const warns = visible.filter(e => e.level==='warn').length;
        const total = errs + warns + (shouldShowInfo()? visible.filter(e=>e.level==='info').length : 0);
        badge.textContent = String(total);
        badge.hidden = total === 0;
        
        // Update tab badge
        logsTab.textContent = `Logs${total > 0 ? ` (${total})` : ''}`;
        
        logsContent.replaceChildren();
        const groupByPage = new Map();
        for (const e of visible) {
        const key = e.page || '/';
        if (!groupByPage.has(key)) groupByPage.set(key, []);
        groupByPage.get(key).push(e);
        }
        for (const [page, entries] of groupByPage) {
        const h = document.createElement('div');
        h.className = 'page-group-header';
        h.textContent = page;
        logsContent.appendChild(h);
        for (const e of entries.sort((a,b)=> (a.level>b.level?-1:1) || (a.timestamp-b.timestamp))) {
            const row = document.createElement('div');
            row.className = `entry ${e.level}`;
            const lvl = document.createElement('div'); 
            lvl.className='lvl'; 
            lvl.textContent=e.level;
            const msg = document.createElement('div'); 
            msg.className='msg'; 
            msg.textContent = e.message || '';
            const metaEl = document.createElement('div'); 
            metaEl.className='meta'; 
            metaEl.textContent = new Date(e.timestamp*1000).toLocaleTimeString();
            row.append(lvl, msg, metaEl);
            logsContent.appendChild(row);
        }
        }
    };

    const refreshFromWindow = () => { 
        if (window.__HBX_LOGS__) { 
        setLogs(window.__HBX_LOGS__); 
        }
    };
    const fetchLogs = async () => {
        try {
        const res = await fetch('/hbx-debug.json?cb=' + Date.now());
        if (res.ok) { const data = await res.json(); setLogs(data); render(); }
        } catch (e) { /* silent */ }
    };

    const openPanel = () => {
        panel.classList.add('open');
        refreshFromWindow();
        render();
        fetchLogs();
    };
    const closePanel = () => {
        panel.classList.remove('open');
    };
    const togglePanel = () => {
        if (panel.classList.contains('open')) {
        closePanel();
        } else {
        openPanel();
        }
    };

    btn.addEventListener('click', togglePanel);
    close.addEventListener('click', closePanel);
    chkInfo.addEventListener('change', () => { 
        localStorage.setItem('hbx-show-info', chkInfo.checked ? '1' : ''); 
        render(); 
    });
    chkAuto.addEventListener('change', () => {
        localStorage.setItem('hbx-auto-open', chkAuto.checked ? '1' : '');
    });
    chkHide.addEventListener('change', () => {
        const hideButton = chkHide.checked;
        setButtonVisibility(hideButton);
        if (hideButton) {
        openPanel();
        }
    });
    placementSelect.addEventListener('change', () => {
        setPlacement(placementSelect.value);
    });

    // Initial render immediately on load
    refreshFromWindow();
    render(); // Force initial render even without data

    // Auto-open panel if user enabled it
    if (chkAuto.checked) {
        openPanel();
    }

    const handleShortcut = (event) => {
        const key = (event.key || '').toLowerCase();
        if (key === 'd' && event.shiftKey && (event.metaKey || event.ctrlKey)) {
        event.preventDefault();
        togglePanel();
        }
    };
    window.addEventListener('keydown', handleShortcut);

    // Auto-refresh badge every few seconds in dev
    setInterval(() => { refreshFromWindow(); }, 3000);
    } catch(e) { /* ignore */ }
})();
</script>