미디어위키:Common.js

mw.loader.load('https://cdnjs.cloudflare.com/ajax/libs/cropperjs/1.5.13/cropper.min.js');
mw.loader.load('/index.php?title=MediaWiki:DevTools.js&action=raw&ctype=text/javascript');
mw.loader.load('/index.php?title=MediaWiki:CategoryNav.js&action=raw&ctype=text/javascript');
mw.loader.load('/index.php?title=MediaWiki:AnecdoteViewer.js&action=raw&ctype=text/javascript');


(function () {
    'use strict';

    var SYSTEM_TITLE_NAMESPACES = {
        '-1': true,
        '4': true,
        '5': true,
        '6': true,
        '7': true,
        '8': true,
        '9': true,
        '10': true,
        '11': true,
        '12': true,
        '13': true,
        '14': true,
        '15': true,
        '828': true,
        '829': true
    };

    function normalizePageNameForShell(value) {
        return String(value || '')
            .split('?')[0]
            .replace(/^\/index\.php\//, '')
            .replace(/_/g, ' ')
            .trim();
    }

    function readCurrentPageNameForShell() {
        var pageName = mw.config.get('wgPageName') || '';

        if (pageName) {
            return normalizePageNameForShell(pageName);
        }

        return normalizePageNameForShell(window.location.pathname || '');
    }

    function isAnecdoteNamespaceForShell() {
        var namespaceNumber = Number(mw.config.get('wgNamespaceNumber'));
        var canonicalNamespace = String(mw.config.get('wgCanonicalNamespace') || '').toLowerCase();
        var pageName = readCurrentPageNameForShell();

        return namespaceNumber === 3000 ||
            canonicalNamespace === 'anecdote' ||
            /^(anecdote|에넥도트):/i.test(pageName);
    }

    function isBackendOrSystemPageForShell() {
        var namespaceNumber = Number(mw.config.get('wgNamespaceNumber'));
        var action = String(mw.config.get('wgAction') || 'view').toLowerCase();
        var contentModel = String(mw.config.get('wgPageContentModel') || '').toLowerCase();
        var pageName = readCurrentPageNameForShell();
        var lowerPageName = pageName.toLowerCase();

        if (action && action !== 'view') {
            return true;
        }

        if (pageName === '대문') {
            return false;
        }

        if (SYSTEM_TITLE_NAMESPACES[String(namespaceNumber)]) {
            return true;
        }

        if (contentModel === 'css' || contentModel === 'javascript' || contentModel === 'json' || contentModel === 'sanitized-css') {
            return true;
        }

        if (/\.(css|js|json)$/i.test(pageName)) {
            return true;
        }

        if (/^(mediawiki|미디어위키|special|특수):/i.test(pageName)) {
            return true;
        }

        return false;
    }

    function isMediaWikiSystemAssetPageForShell() {
        var namespaceNumber = Number(mw.config.get('wgNamespaceNumber'));
        var pageName = readCurrentPageNameForShell();
        var contentModel = String(mw.config.get('wgPageContentModel') || '').toLowerCase();

        return namespaceNumber === 8 &&
            (/\.(css|js)$/i.test(pageName) || contentModel === 'css' || contentModel === 'javascript' || contentModel === 'sanitized-css');
    }


    var systemDocRawFetchToken = 0;

    function cleanupLegacySystemDocCodeMutationsForShell() {
        document.querySelectorAll('.clbi-system-doc-codepane').forEach(function (pane) {
            var parent;

            if (!pane || !pane.parentNode) return;

            parent = pane.parentNode;
            while (pane.firstChild) {
                parent.insertBefore(pane.firstChild, pane);
            }
            parent.removeChild(pane);
        });

        document.querySelectorAll('.clbi-system-doc-codebox').forEach(function (node) {
            node.classList.remove('clbi-system-doc-codebox');
            node.removeAttribute('data-clbi-system-doc-codebox');
            node.removeAttribute('style');
        });
    }

    function getSystemDocOutputForShell() {
        return document.querySelector('.liberty-content-main .mw-parser-output');
    }

    function findSystemDocSourceNodeForShell() {
        var output = getSystemDocOutputForShell();
        var children;
        var preferred;

        if (!output) return null;

        children = Array.prototype.slice.call(output.children || [])
            .filter(function (el) {
                return el && el.nodeType === 1 &&
                    el.id !== 'clbi-system-doc-indicator-row' &&
                    el.id !== 'clbi-system-source-viewer' &&
                    !el.classList.contains('catlinks') &&
                    (el.textContent || '').trim().length > 200;
            });

        preferred = children.filter(function (el) {
            return el.matches && el.matches('.mw-highlight, .mw-code, pre');
        })[0];

        return preferred || children.sort(function (a, b) {
            return (b.textContent || '').trim().length - (a.textContent || '').trim().length;
        })[0] || null;
    }

    function getSystemDocRawUrlForShell() {
        var title = mw.config.get('wgPageName') || readCurrentPageNameForShell();

        if (window.mw && mw.util && typeof mw.util.getUrl === 'function') {
            return mw.util.getUrl(title, {
                action: 'raw',
                ctype: 'text/plain',
                _: String(Date.now())
            });
        }

        return '/index.php?title=' + encodeURIComponent(title) + '&action=raw&ctype=text/plain&_=' + Date.now();
    }

    function removeSystemDocSourceViewerForShell() {
        var viewer = document.getElementById('clbi-system-source-viewer');

        if (viewer && viewer.parentNode) {
            viewer.parentNode.removeChild(viewer);
        }

        document.querySelectorAll('.clbi-system-original-source-hidden').forEach(function (node) {
            node.classList.remove('clbi-system-original-source-hidden');
            node.removeAttribute('data-clbi-system-source-hidden');
            node.style.removeProperty('display');
        });

        cleanupLegacySystemDocCodeMutationsForShell();
    }

    function ensureSystemDocSourceViewerForShell() {
        var output = getSystemDocOutputForShell();
        var source;
        var viewer;
        var fallbackText;

        if (!output || !isMediaWikiSystemAssetPageForShell()) return null;

        cleanupLegacySystemDocCodeMutationsForShell();

        source = findSystemDocSourceNodeForShell();
        if (!source) return null;

        viewer = document.getElementById('clbi-system-source-viewer');

        if (!viewer) {
            viewer = document.createElement('pre');
            viewer.id = 'clbi-system-source-viewer';
            viewer.className = 'clbi-system-source-viewer';
            output.appendChild(viewer);
        }

        fallbackText = source.textContent || '';

        if (!viewer.textContent && fallbackText) {
            viewer.textContent = fallbackText;
        }

        source.classList.add('clbi-system-original-source-hidden');
        source.setAttribute('data-clbi-system-source-hidden', 'true');
        source.style.setProperty('display', 'none', 'important');

        return viewer;
    }

    function renderSystemDocSourceViewerForShell() {
        var viewer;
        var pageName;
        var token;
        var currentScrollTop;

        if (!isMediaWikiSystemAssetPageForShell()) return;

        pageName = String(mw.config.get('wgPageName') || readCurrentPageNameForShell());
        viewer = document.getElementById('clbi-system-source-viewer');

        /*
        시스템 문서 뷰어가 이미 만들어져 있고 raw 원문도 로드된 상태라면
        다시 source 탐색/숨김/스타일 재적용을 하지 않는다.
        DevTools Elements 패널에서 body가 계속 파랗게 깜빡이던 원인은
        MutationObserver가 이 재적용을 반복해서 DOM attribute mutation을 만들었기 때문이다.
        */
        if (
            viewer &&
            viewer.getAttribute('data-clbi-raw-title') === pageName &&
            viewer.getAttribute('data-clbi-raw-loaded') === '1'
        ) {
            return;
        }

        viewer = ensureSystemDocSourceViewerForShell();
        if (!viewer) return;

        currentScrollTop = viewer.scrollTop || 0;
        viewer.setAttribute('data-clbi-raw-title', pageName);
        token = ++systemDocRawFetchToken;

        fetch(getSystemDocRawUrlForShell(), { credentials: 'same-origin' })
            .then(function (res) {
                if (!res.ok) throw new Error('raw fetch failed ' + res.status);
                return res.text();
            })
            .then(function (text) {
                if (token !== systemDocRawFetchToken) return;

                currentScrollTop = viewer.scrollTop || currentScrollTop || 0;

                if (text && viewer.textContent !== text) {
                    viewer.textContent = text;
                }

                viewer.setAttribute('data-clbi-raw-loaded', '1');
                viewer.scrollTop = currentScrollTop;
            })
            .catch(function () {
                viewer.setAttribute('data-clbi-raw-loaded', '0');
            });
    }

    function removeSystemDocIndicatorForShell() {
        var existing = document.getElementById('clbi-system-doc-indicator-row');

        if (document.body) {
            document.body.classList.remove('clbi-system-doc-page');
        }

        if (existing && existing.parentNode) {
            existing.parentNode.removeChild(existing);
        }

        removeSystemDocSourceViewerForShell();
    }

    function renderSystemDocIndicatorForShell() {
        var pageName;
        var extMatch;
        var ext;
        var row;
        var box;
        var meta;
        var label;
        var type;
        var title;
        var anchor;
        var main;

        if (!document.body || !isMediaWikiSystemAssetPageForShell()) return;

        pageName = readCurrentPageNameForShell();
        extMatch = pageName.match(/\.(css|js)$/i);
        ext = extMatch ? extMatch[1].toUpperCase() : 'DOC';

        document.body.classList.add('clbi-system-doc-page');

        row = document.getElementById('clbi-system-doc-indicator-row');

        if (!row) {
            row = document.createElement('div');
            row.id = 'clbi-system-doc-indicator-row';
            row.className = 'clbi-system-doc-indicator-row';

            box = document.createElement('div');
            box.className = 'clbi-system-doc-indicator';

            meta = document.createElement('div');
            meta.className = 'clbi-system-doc-meta';

            label = document.createElement('span');
            label.className = 'clbi-system-doc-label';
            label.textContent = 'SYSTEM DOCUMENT';

            type = document.createElement('span');
            type.className = 'clbi-system-doc-type';

            title = document.createElement('div');
            title.className = 'clbi-system-doc-title';

            meta.appendChild(label);
            meta.appendChild(type);
            box.appendChild(meta);
            box.appendChild(title);
            row.appendChild(box);

            anchor = getSystemDocOutputForShell();
            main = document.querySelector('.liberty-content-main');

            if (anchor && anchor.parentNode) {
                anchor.parentNode.insertBefore(row, anchor);
            } else if (main) {
                main.insertBefore(row, main.firstChild);
            }
        }

        type = row.querySelector('.clbi-system-doc-type');
        title = row.querySelector('.clbi-system-doc-title');

        if (type) type.textContent = ext;
        if (title) title.textContent = pageName;

        renderSystemDocSourceViewerForShell();
    }

    var PAGE_TITLE_TARGET_SELECTORS = [
        '.liberty-content-header',
        '.liberty-content-header .title',
        '.liberty-content-header .title h1',
        '.liberty-content-header h1',
        '#firstHeading',
        '.firstHeading',
        '.mw-first-heading',
        '.page-heading',
        '.page-header',
        '.mw-page-title-main',
        '.mw-page-title-namespace',
        '.mw-page-title-separator'
    ];

    var pageShellObserverStarted = false;
    var pageShellObserverTimer = null;

    function setPageTitleDomHidden(hidden) {
        var nodes = document.querySelectorAll(PAGE_TITLE_TARGET_SELECTORS.join(','));

        nodes.forEach(function (node) {
            if (!node || !node.style) return;

            if (hidden) {
                node.setAttribute('data-clbi-title-hidden', 'true');
                node.style.setProperty('display', 'none', 'important');
            } else if (node.getAttribute('data-clbi-title-hidden') === 'true') {
                node.removeAttribute('data-clbi-title-hidden');
                node.style.removeProperty('display');
            }
        });
    }

    function applyPageShellClasses() {
        var body = document.body;
        var isSystemPage;

        if (!body) return;

        isSystemPage = isBackendOrSystemPageForShell();

        body.classList.remove('page-title-hidden', 'page-title-visible', 'backend-system-page', 'anecdote-namespace-page');

        if (!isMediaWikiSystemAssetPageForShell()) {
            body.classList.remove('clbi-system-doc-page');
            removeSystemDocIndicatorForShell();
        }

        if (isAnecdoteNamespaceForShell()) {
            body.classList.add('anecdote-namespace-page');
        }

        if (isMediaWikiSystemAssetPageForShell()) {
            body.classList.add('page-title-hidden', 'backend-system-page', 'clbi-system-doc-page');
            setPageTitleDomHidden(true);
            renderSystemDocIndicatorForShell();
        } else if (isSystemPage) {
            body.classList.add('page-title-visible', 'backend-system-page');
            setPageTitleDomHidden(false);
        } else {
            body.classList.add('page-title-hidden');
            setPageTitleDomHidden(true);
        }
    }

    function applyPageShellClassesDeferred() {
        applyPageShellClasses();
        window.setTimeout(applyPageShellClasses, 0);
        window.setTimeout(applyPageShellClasses, 80);
        window.setTimeout(applyPageShellClasses, 250);
    }

    function startPageShellObserver() {
        var observer;

        if (pageShellObserverStarted || !window.MutationObserver || !document.body) return;

        pageShellObserverStarted = true;
        observer = new MutationObserver(function (mutations) {
            var i;
            var target;

            /*
            시스템 CSS/JS 문서는 applyPageShellClasses()가 초기에 한 번
            인디케이터와 source viewer를 만든 뒤에는 MutationObserver가 다시
            같은 렌더링을 반복할 필요가 없다. 이 반복이 DevTools에서 body/요소가
            계속 플래시되는 직접 원인이다.
            SPA 전환 뒤의 처리는 loadPage()와 wikipage.content hook에서 따로 호출된다.
            */
            if (isMediaWikiSystemAssetPageForShell()) {
                for (i = 0; i < mutations.length; i += 1) {
                    target = mutations[i] && mutations[i].target;

                    if (
                        target &&
                        target.nodeType === 1 &&
                        (
                            target.id === 'clbi-system-source-viewer' ||
                            target.id === 'clbi-system-doc-indicator-row' ||
                            (target.closest && target.closest('#clbi-system-source-viewer, #clbi-system-doc-indicator-row'))
                        )
                    ) {
                        return;
                    }
                }

                if (
                    document.getElementById('clbi-system-doc-indicator-row') &&
                    document.getElementById('clbi-system-source-viewer')
                ) {
                    return;
                }
            }

            if (pageShellObserverTimer) return;

            pageShellObserverTimer = window.setTimeout(function () {
                pageShellObserverTimer = null;
                applyPageShellClasses();
            }, 50);
        });

        observer.observe(document.body, {
            childList: true,
            subtree: true
        });
    }

    if (document.readyState === 'loading') {
        document.addEventListener('DOMContentLoaded', function () {
            applyPageShellClassesDeferred();
            startPageShellObserver();
        });
    } else {
        applyPageShellClassesDeferred();
        startPageShellObserver();
    }

    if (mw.hook) {
        mw.hook('wikipage.content').add(applyPageShellClassesDeferred);
    }

    window.CLBI_PAGE_SHELL = {
        refresh: applyPageShellClasses,
        isBackendOrSystemPage: isBackendOrSystemPageForShell,
        isSystemAssetPage: isMediaWikiSystemAssetPageForShell,
        renderSystemDocIndicator: renderSystemDocIndicatorForShell,
        removeSystemDocIndicator: removeSystemDocIndicatorForShell,
        refreshSystemDocSourceViewer: renderSystemDocSourceViewerForShell
    };
}());

function loadLangScript(done) {
    $.getScript('/index.php?title=미디어위키:Lang.js&action=raw&ctype=text/javascript')
        .done(function() {
            if (typeof done === 'function') done();
        })
        .fail(function(a, b, c) {
            console.error('Lang.js load failed:', b, c);
            if (typeof done === 'function') done();
        });
}


function initHalftoneBackground() {
    try {
        initWebGLHalftoneBackground();
    } catch (err) {
        console.error('WebGL halftone background failed:', err);
    }
}

function initWebGLHalftoneBackground() {
    var canvasId = 'site-halftone-bg';
    var existing = document.getElementById(canvasId);
    var canvas = existing || document.createElement('canvas');

    if (!existing) {
        canvas.id = canvasId;
        canvas.setAttribute('aria-hidden', 'true');
        document.body.insertBefore(canvas, document.body.firstChild || null);
    }

    canvas.style.position = 'fixed';
    canvas.style.inset = '0';
    canvas.style.width = '100vw';
    canvas.style.height = '100vh';
    canvas.style.pointerEvents = 'none';
    canvas.style.background = '#000000';

    var gl = canvas.getContext('webgl', {
        alpha: false,
        antialias: false,
        depth: false,
        stencil: false,
        preserveDrawingBuffer: false,
        powerPreference: 'high-performance'
    }) || canvas.getContext('experimental-webgl');

    if (!gl) {
        console.warn('WebGL background unavailable.');
        return;
    }

    var vertexSrc = [
        'attribute vec2 a_position;',
        'void main() {',
        '  gl_Position = vec4(a_position, 0.0, 1.0);',
        '}'
    ].join('\n');

    var fragmentSrc = [
        'precision mediump float;',
        'uniform vec2 u_resolution;',
        'uniform float u_time;',
        'const float TAU = 6.28318530718;',
        'float gaussian(float v, float r) {',
        '  return exp(-((v * v) / max(0.0001, r * r)));',
        '}',
        'float hash(vec2 p) {',
        '  return fract(sin(dot(p, vec2(127.1, 311.7))) * 43758.5453123);',
        '}',
        'float bucketAlpha(float a) {',
        '  float i = floor(a * 9.0);',
        '  if (i < 1.0) return 0.040;',
        '  if (i < 2.0) return 0.080;',
        '  if (i < 3.0) return 0.135;',
        '  if (i < 4.0) return 0.210;',
        '  if (i < 5.0) return 0.310;',
        '  if (i < 6.0) return 0.430;',
        '  if (i < 7.0) return 0.580;',
        '  if (i < 8.0) return 0.760;',
        '  return 0.920;',
        '}',
        'void main() {',
        '  vec2 frag = gl_FragCoord.xy;',
        '  float spacing = 5.0;',
        '  float dotSize = 1.08;',
        '  vec2 grid = floor(frag / spacing);',
        '  vec2 inCell = mod(frag, spacing);',
        '  vec2 dotOrigin = vec2(1.0, 1.0);',
        '  vec2 dotCenter = dotOrigin + vec2(dotSize * 0.5);',
        '  vec2 local = abs(inCell - dotCenter);',
        '  float noise = hash(grid);',
        '  float size = dotSize + noise * 0.18;',
        '  float dotMask = 1.0 - smoothstep(size * 0.5, size * 0.5 + 0.22, max(local.x, local.y));',
        '  vec2 uv = frag / u_resolution;',
        '  float centerLine = 0.50 +',
        '    sin((uv.y * 1.32 + 0.08) * TAU) * 0.070 +',
        '    sin((uv.y * 3.18 + 0.34) * TAU) * 0.030;',
        '  float u = uv.x - centerLine;',
        '  float absU = abs(u);',
        '  float sideLift = smoothstep(0.065, 0.44, absU);',
        '  float valley = gaussian(u, 0.150);',
        '  float t = u_time;',
        '  float leftRibbonCenter = -0.28 + sin((uv.y * 3.20 + 0.12) * TAU) * 0.050;',
        '  float rightRibbonCenter = 0.27 + sin((uv.y * 2.85 + 0.56) * TAU) * 0.055;',
        '  float leftRibbon = gaussian(u - leftRibbonCenter, 0.105);',
        '  float rightRibbon = gaussian(u - rightRibbonCenter, 0.110);',
        '  float foldedU = u +',
        '    sin((uv.y * 4.40 + 0.22) * TAU) * 0.050 * (0.3 + sideLift) +',
        '    sin((uv.y * 7.20 + uv.x * 1.10) * TAU) * 0.022;',
        '  float verticalFold = pow(0.5 + 0.5 * cos(((foldedU * 3.05) + (sin(uv.y * TAU * 2.35) * 0.18)) * TAU), 2.5);',
        '  float diagonalFold = pow(0.5 + 0.5 * cos(((foldedU * 1.80) - (uv.y * 1.12) + 0.18) * TAU), 2.1);',
        '  float waist = gaussian(uv.y - 0.50, 0.25) * gaussian(absU - 0.20, 0.19);',
        '  float grain = (noise - 0.5) * 0.050;',
        '  float staticField =',
        '    0.055 +',
        '    sideLift * 0.210 +',
        '    (leftRibbon + rightRibbon) * 0.145 +',
        '    verticalFold * (0.055 + sideLift * 0.115) +',
        '    diagonalFold * 0.045 +',
        '    waist * 0.060 -',
        '    valley * 0.150 +',
        '    grain;',
        '  float alpha = staticField;',
        '  alpha += 0.115 * (leftRibbon + rightRibbon) * sin(t * 0.00030 + ((uv.y * 1.9) + sideLift * 0.4) * TAU);',
        '  alpha += 0.095 * verticalFold * (0.4 + sideLift) * sin(t * 0.00041 + ((uv.y * 2.7) + foldedU * 0.65) * TAU);',
        '  alpha += 0.070 * waist * sin(t * 0.00053 + ((uv.y * 3.1) - absU * 0.8) * TAU);',
        '  alpha += 0.060 * (1.0 - valley) * diagonalFold * sin(t * 0.00067 + ((uv.y * 1.4) + uv.x * 0.6) * TAU);',
        '  alpha += 0.038 * (0.35 + sideLift) * (0.35 + noise) * sin(t * 0.00079 + ((uv.y * 4.6) + noise * 0.8) * TAU);',
        '  alpha = bucketAlpha(clamp(alpha, 0.025, 0.96));',
        '  float value = alpha * dotMask;',
        '  gl_FragColor = vec4(vec3(0.8862745 * value), 1.0);',
        '}'
    ].join('\n');

    function compileShader(type, source) {
        var shader = gl.createShader(type);
        gl.shaderSource(shader, source);
        gl.compileShader(shader);

        if (!gl.getShaderParameter(shader, gl.COMPILE_STATUS)) {
            console.error('WebGL shader compile error:', gl.getShaderInfoLog(shader));
            gl.deleteShader(shader);
            return null;
        }

        return shader;
    }

    var vertexShader = compileShader(gl.VERTEX_SHADER, vertexSrc);
    var fragmentShader = compileShader(gl.FRAGMENT_SHADER, fragmentSrc);

    if (!vertexShader || !fragmentShader) return;

    var program = gl.createProgram();
    gl.attachShader(program, vertexShader);
    gl.attachShader(program, fragmentShader);
    gl.linkProgram(program);

    if (!gl.getProgramParameter(program, gl.LINK_STATUS)) {
        console.error('WebGL program link error:', gl.getProgramInfoLog(program));
        return;
    }

    var positionLoc = gl.getAttribLocation(program, 'a_position');
    var resolutionLoc = gl.getUniformLocation(program, 'u_resolution');
    var timeLoc = gl.getUniformLocation(program, 'u_time');

    var buffer = gl.createBuffer();
    gl.bindBuffer(gl.ARRAY_BUFFER, buffer);
    gl.bufferData(gl.ARRAY_BUFFER, new Float32Array([
        -1, -1,
         1, -1,
        -1,  1,
        -1,  1,
         1, -1,
         1,  1
    ]), gl.STATIC_DRAW);

    gl.useProgram(program);
    gl.bindBuffer(gl.ARRAY_BUFFER, buffer);
    gl.enableVertexAttribArray(positionLoc);
    gl.vertexAttribPointer(positionLoc, 2, gl.FLOAT, false, 0, 0);

    function resize() {
        var dpr = Math.min(window.devicePixelRatio || 1, 1.5);
        var cssW = Math.max(1, window.innerWidth || document.documentElement.clientWidth || 1);
        var cssH = Math.max(1, window.innerHeight || document.documentElement.clientHeight || 1);
        var w = Math.max(1, Math.floor(cssW * dpr));
        var h = Math.max(1, Math.floor(cssH * dpr));

        if (canvas.width !== w || canvas.height !== h) {
            canvas.width = w;
            canvas.height = h;
            canvas.style.width = cssW + 'px';
            canvas.style.height = cssH + 'px';
            gl.viewport(0, 0, w, h);
        }
    }

    var prefersReducedMotion = false;
    try {
        prefersReducedMotion = window.matchMedia && window.matchMedia('(prefers-reduced-motion: reduce)').matches;
    } catch (err) {}

    var lastFrame = 0;
    var frameInterval = prefersReducedMotion ? 1000 : 66;
    var startTime = performance.now();

    function render(now) {
        requestAnimationFrame(render);
        if (document.hidden) return;
        if (now - lastFrame < frameInterval) return;

        lastFrame = now;
        resize();

        gl.clearColor(0, 0, 0, 1);
        gl.clear(gl.COLOR_BUFFER_BIT);
        gl.uniform2f(resolutionLoc, canvas.width, canvas.height);
        gl.uniform1f(timeLoc, now - startTime);
        gl.drawArrays(gl.TRIANGLES, 0, 6);
    }

    resize();
    requestAnimationFrame(render);
}

var CLBI_SVG_BELL = '<svg class="profile-svg profile-svg-bell" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2.75" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true"><path d="M10.268 21a2 2 0 0 0 3.464 0"/><path d="M3.262 15.326A1 1 0 0 0 4 17h16a1 1 0 0 0 .74-1.673C19.41 13.956 18 12.499 18 8A6 6 0 0 0 6 8c0 4.499-1.411 5.956-2.738 7.326"/></svg>';
var CLBI_SVG_BELL_DOT = '<svg class="profile-svg profile-svg-bell-dot" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2.75" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true"><path d="M10.268 21a2 2 0 0 0 3.464 0"/><path d="M11.68 2.009A6 6 0 0 0 6 8c0 4.499-1.411 5.956-2.738 7.326A1 1 0 0 0 4 17h16a1 1 0 0 0 .74-1.673c-.824-.85-1.678-1.731-2.21-3.348"/><circle cx="18" cy="5" r="3"/></svg>';
var CLBI_SVG_LIST = '<svg class="profile-svg profile-svg-list" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2.75" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true"><path d="M3 5h.01"/><path d="M3 12h.01"/><path d="M3 19h.01"/><path d="M8 5h13"/><path d="M8 12h13"/><path d="M8 19h13"/></svg>';
var CLBI_SVG_LANGUAGES = '<svg class="profile-svg profile-svg-languages" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2.75" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true"><path d="m5 8 6 6"/><path d="m4 14 6-6 2-3"/><path d="M2 5h12"/><path d="M7 2h1"/><path d="m22 22-5-10-5 10"/><path d="M14 18h6"/></svg>';
var CLBI_SVG_POWER = '<svg class="profile-svg profile-svg-power" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2.75" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true"><path d="M12 2v10"/><path d="M18.4 6.6a9 9 0 1 1-12.77.04"/></svg>';
var CLBI_SVG_SETTINGS = '<svg class="profile-svg profile-svg-settings" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2.75" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true"><path d="M9.671 4.136a2.34 2.34 0 0 1 4.659 0 2.34 2.34 0 0 0 3.319 1.915 2.34 2.34 0 0 1 2.33 4.033 2.34 2.34 0 0 0 0 3.831 2.34 2.34 0 0 1-2.33 4.033 2.34 2.34 0 0 0-3.319 1.915 2.34 2.34 0 0 1-4.659 0 2.34 2.34 0 0 0-3.32-1.915 2.34 2.34 0 0 1-2.33-4.033 2.34 2.34 0 0 0 0-3.831A2.34 2.34 0 0 1 6.35 6.051a2.34 2.34 0 0 0 3.319-1.915"/><circle cx="12" cy="12" r="3"/></svg>';
var CLBI_SVG_SCAN_TEXT = '<svg class="profile-svg profile-svg-scan-text" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2.75" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true"><path d="M3 7V5a2 2 0 0 1 2-2h2"/><path d="M17 3h2a2 2 0 0 1 2 2v2"/><path d="M21 17v2a2 2 0 0 1-2 2h-2"/><path d="M7 21H5a2 2 0 0 1-2-2v-2"/><path d="M7 8h8"/><path d="M7 12h10"/><path d="M7 16h6"/></svg>';
var CLBI_SVG_SCAN_EYE = '<svg class="profile-svg profile-svg-scan-eye" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2.75" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true"><path d="M3 7V5a2 2 0 0 1 2-2h2"/><path d="M17 3h2a2 2 0 0 1 2 2v2"/><path d="M21 17v2a2 2 0 0 1-2 2h-2"/><path d="M7 21H5a2 2 0 0 1-2-2v-2"/><circle cx="12" cy="12" r="1"/><path d="M18.944 12.33a1 1 0 0 0 0-.66 7.5 7.5 0 0 0-13.888 0 1 1 0 0 0 0 .66 7.5 7.5 0 0 0 13.888 0"/></svg>';
var CLBI_SVG_NEWSPAPER = '<svg class="profile-svg profile-svg-newspaper" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2.75" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true"><path d="M15 18h-5"/><path d="M18 14h-8"/><path d="M4 22h16a2 2 0 0 0 2-2V4a2 2 0 0 0-2-2H8a2 2 0 0 0-2 2v16a2 2 0 0 1-4 0v-9a2 2 0 0 1 2-2h2"/><rect width="8" height="4" x="10" y="6" rx="1"/></svg>';
var CLBI_SVG_TROPHY = '<svg class="profile-svg profile-svg-trophy" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2.75" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true"><path d="M10 14.66v1.626a2 2 0 0 1-.976 1.696A5 5 0 0 0 7 21.978"/><path d="M14 14.66v1.626a2 2 0 0 0 .976 1.696A5 5 0 0 1 17 21.978"/><path d="M18 9h1.5a1 1 0 0 0 0-5H18"/><path d="M4 22h16"/><path d="M6 9a6 6 0 0 0 12 0V3a1 1 0 0 0-1-1H7a1 1 0 0 0-1 1z"/><path d="M6 9H4.5a1 1 0 0 1 0-5H6"/></svg>';
var CLBI_SVG_PACKAGE = '<svg class="profile-svg profile-svg-package" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2.75" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true"><path d="M12 3v6"/><path d="M16.76 3a2 2 0 0 1 1.8 1.1l2.23 4.479a2 2 0 0 1 .21.891V19a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2V9.472a2 2 0 0 1 .211-.894L5.45 4.1A2 2 0 0 1 7.24 3z"/><path d="M3.054 9.013h17.893"/></svg>';

var PROFILE_RENDER_TOKEN = 0;

function invalidateProfileRender() {
    PROFILE_RENDER_TOKEN++;
}

$(function() {
    initHalftoneBackground();

// ── 상·하단 네비게이션 바 ──
function buildClbiNavHtml(position) {
    var isBottom = position === 'bottom';
    var base = isBottom ? 'clbi-bottom' : 'clbi-top';
    var shortBase = isBottom ? 'clbi-bnav' : 'clbi-tnav';
    var wrapId = base + '-nav-wrap';
    var navId = base + '-nav';
    var mainId = base + '-nav-main';
    var tabsId = base + '-nav-tabs';
    var searchId = base + '-nav-search';
    var inputId = isBottom ? 'clbi-bottom-search-input' : 'clbi-top-search-input';
    var rightId = base + '-nav-right';
    var worldId = shortBase + '-worldbuilding';
    var infoId = shortBase + '-info';
    var subId = isBottom ? 'clbi-bottom-sub-worldbuilding' : 'clbi-sub-worldbuilding';
    var subInnerId = subId + '-inner';

    return '' +
        '<div id="' + wrapId + '">' +
            '<div id="' + navId + '">' +
                '<div id="' + mainId + '">' +
                    '<div id="' + tabsId + '">' +
                        '<a class="clbi-top-nav-item" href="/index.php/대문">' +
                            '<img class="clbi-tnav-icon" src="/index.php?title=특수:Redirect/file/Ic-main-menu-001.png" alt="">' +
                            '<span class="clbi-tnav-label">메인 메뉴</span>' +
                        '</a>' +
                        '<a class="clbi-top-nav-item" href="/index.php/프로젝트:소개">' +
                            '<img class="clbi-tnav-icon" src="/index.php?title=특수:Redirect/file/Ic-project-001.png" alt="">' +
                            '<span class="clbi-tnav-label">프로젝트</span>' +
                        '</a>' +
                        '<div class="clbi-top-nav-item" id="' + worldId + '">' +
                            '<img class="clbi-tnav-icon" src="/index.php?title=특수:Redirect/file/Ic-worldbuilding-001.png" alt="">' +
                            '<span class="clbi-tnav-label">세계관</span>' +
                            '<span class="clbi-tnav-arrow">▾</span>' +
                        '</div>' +
                    '</div>' +
                    '<div id="' + searchId + '">' +
                        '<input type="text" id="' + inputId + '" placeholder="검색...">' +
                    '</div>' +
                    '<div id="' + rightId + '">' +
                        '<div class="clbi-top-nav-item" id="' + infoId + '">' +
                            '<span class="clbi-tnav-label">ℹ</span>' +
                        '</div>' +
                    '</div>' +
                '</div>' +
                '<div id="' + subId + '">' +
                    '<div id="' + subInnerId + '">' +
                        '<div class="clbi-tnav-sub-list">' +
                            '<a class="clbi-tnav-sub-item" href="/index.php/역사적_사건">역사적 사건</a>' +
                            '<a class="clbi-tnav-sub-item" href="/index.php/설정">설정</a>' +
                            '<a class="clbi-tnav-sub-item" href="/index.php/국가_및_조합">국가 및 조합</a>' +
                            '<a class="clbi-tnav-sub-item" href="/index.php/기업_및_공동체">기업 및 공동체</a>' +
                            '<a class="clbi-tnav-sub-item" href="/index.php/군_정치집단">군, 정치집단</a>' +
                            '<a class="clbi-tnav-sub-item" href="/index.php/인물">인물</a>' +
                        '</div>' +
                    '</div>' +
                '</div>' +
            '</div>' +
        '</div>';
}

function normalizeClbiShellDomOrder() {
    var contentWrapper = document.querySelector('.content-wrapper');
    var topNav = document.getElementById('clbi-top-nav-wrap');
    var bottomNav = document.getElementById('clbi-bottom-nav-wrap');
    var canvas = document.getElementById('site-halftone-bg');
    var anchor;
    var viewportH;
    var topRect;
    var wrapperRect;
    var needsRecovery;
    var expectedWrapperTop;
    var host;

    if (!contentWrapper || !topNav || !bottomNav || !document.body) return;

    /*
    CLBI shell can live inside a Liberty <section>.  Some skins/layouts give that
    section a flow context that lets the top nav visually overlap the content
    wrapper even when DOM sibling order is correct.  Mark the common parent and
    let Layout.css force a simple vertical flow for the shell.
    */
    host = topNav.parentElement === contentWrapper.parentElement &&
        contentWrapper.parentElement === bottomNav.parentElement
        ? contentWrapper.parentElement
        : null;

    if (host) {
        host.classList.add('clbi-shell-host');
    }

    viewportH = window.innerHeight || document.documentElement.clientHeight || 0;
    topRect = topNav.getBoundingClientRect();
    wrapperRect = contentWrapper.getBoundingClientRect();
    expectedWrapperTop = topRect.bottom + 8;

    needsRecovery = false;

    if (viewportH > 0) {
        if (topRect.top >= viewportH * 0.55) needsRecovery = true;
        if (wrapperRect.top >= viewportH * 0.60) needsRecovery = true;
    }

    if (topRect.top > 240 || wrapperRect.top > 320) {
        needsRecovery = true;
    }

    if (wrapperRect.top < expectedWrapperTop - 1) {
        needsRecovery = true;
    }

    if (!needsRecovery) {
        document.body.classList.add('clbi-shell-ready');
        return;
    }

    anchor = canvas && canvas.parentNode === document.body
        ? canvas.nextSibling
        : document.body.firstChild;

    document.body.insertBefore(topNav, anchor);
    document.body.insertBefore(contentWrapper, topNav.nextSibling);
    document.body.insertBefore(bottomNav, contentWrapper.nextSibling);

    document.body.classList.add('clbi-shell-ready');
}

window.normalizeClbiShellDomOrder = normalizeClbiShellDomOrder;

var $contentWrapper = $('.content-wrapper').first();

if ($contentWrapper.length) {
    $('#clbi-top-nav-wrap, #clbi-bottom-nav-wrap').remove();
    $contentWrapper.before(buildClbiNavHtml('top'));
    $contentWrapper.after(buildClbiNavHtml('bottom'));
    if (typeof window.normalizeClbiShellDomOrder === 'function') window.normalizeClbiShellDomOrder();
}

function updateClbiShellMetrics() {
    var top = document.getElementById('clbi-top-nav-wrap');
    var bottom = document.getElementById('clbi-bottom-nav-wrap');
    var root = document.documentElement;
    var topH = 0;
    var bottomH = 0;

    if (!root) return;

    if (top) {
        topH = Math.ceil(top.getBoundingClientRect().height || top.offsetHeight || 0);
    }

    if (bottom) {
        bottomH = Math.ceil(bottom.getBoundingClientRect().height || bottom.offsetHeight || 0);
    }

    root.style.setProperty('--clbi-top-nav-outer-h', topH + 'px');
    root.style.setProperty('--clbi-bottom-nav-outer-h', bottomH + 'px');
}

function scheduleClbiShellMetrics() {
    updateClbiShellMetrics();

    if (typeof scheduleAdaptiveLeftRecentItems === 'function') {
        scheduleAdaptiveLeftRecentItems();
    }

    if (typeof scheduleClbiContentBottomGap === 'function') {
        scheduleClbiContentBottomGap();
    }

    window.setTimeout(function () {
        updateClbiShellMetrics();
        if (typeof scheduleAdaptiveLeftRecentItems === 'function') {
            scheduleAdaptiveLeftRecentItems();
        }
        if (typeof scheduleClbiContentBottomGap === 'function') {
            scheduleClbiContentBottomGap();
        }
    }, 0);

    window.setTimeout(function () {
        updateClbiShellMetrics();
        if (typeof scheduleAdaptiveLeftRecentItems === 'function') {
            scheduleAdaptiveLeftRecentItems();
        }
        if (typeof scheduleClbiContentBottomGap === 'function') {
            scheduleClbiContentBottomGap();
        }
    }, 80);

    window.setTimeout(function () {
        updateClbiShellMetrics();
        if (typeof scheduleAdaptiveLeftRecentItems === 'function') {
            scheduleAdaptiveLeftRecentItems();
        }
        if (typeof scheduleClbiContentBottomGap === 'function') {
            scheduleClbiContentBottomGap();
        }
    }, 240);
}

function watchClbiShellMetrics() {
    var top = document.getElementById('clbi-top-nav-wrap');
    var bottom = document.getElementById('clbi-bottom-nav-wrap');
    var observer;

    scheduleClbiShellMetrics();

    $(window).on('resize orientationchange', scheduleClbiShellMetrics);
    $(window).on('resize.clbiRecentViewport orientationchange.clbiRecentViewport', function () { scheduleAdaptiveLeftRecentItems(); scheduleClbiContentBottomGap(); });
    $(window).on('resize.clbiContentBottomGap orientationchange.clbiContentBottomGap', scheduleClbiContentBottomGap);

    if (window.ResizeObserver) {
        observer = new ResizeObserver(scheduleClbiShellMetrics);
        if (top) observer.observe(top);
        if (bottom) observer.observe(bottom);
        window.CLBI_SHELL_RESIZE_OBSERVER = observer;
    }
}

function bindClbiWorldbuildingToggle(buttonSelector, menuSelector) {
    $(buttonSelector).on('click', function() {
        var $menu = $(menuSelector);
        var $btn = $(this);

        $menu.toggleClass('worldbuilding-open');
        $btn.toggleClass('clbi-tnav-active', $menu.hasClass('worldbuilding-open'));
        scheduleClbiShellMetrics();
    });
}

bindClbiWorldbuildingToggle('#clbi-tnav-worldbuilding', '#clbi-sub-worldbuilding');
bindClbiWorldbuildingToggle('#clbi-bnav-worldbuilding', '#clbi-bottom-sub-worldbuilding');

$('#clbi-top-search-input, #clbi-bottom-search-input').on('keydown', function(e) {
    if (e.key === 'Enter') {
        var q = $(this).val().trim();
        if (q) window.location.href = '/index.php?search=' + encodeURIComponent(q);
    }
});

watchClbiShellMetrics();

});

// 페이지 전환 사운드
var transitionSound = new Audio('/index.php?title=특수:Redirect/file/Sfx-ui-001.mp3');

(function() {
    var master = parseFloat(localStorage.getItem('clbi-audio-master') || 80) / 100;
    var sfx = parseFloat(localStorage.getItem('clbi-audio-sfx') || 60) / 100;
    var sfxOn = localStorage.getItem('clbi-audio-sfxOn') !== 'false';
    transitionSound.volume = sfxOn ? master * sfx : 0;
})();

function playStaticSound() {
    var master = parseFloat(localStorage.getItem('clbi-audio-master') || 80) / 100;
    var sfx = parseFloat(localStorage.getItem('clbi-audio-sfx') || 60) / 100;
    var sfxOn = localStorage.getItem('clbi-audio-sfxOn') !== 'false';

    if (!sfxOn) return;

    transitionSound.volume = master * sfx;
    transitionSound.currentTime = 0;
    transitionSound.play();
}

// 현재 언어 감지
function getCurrentLang() {
    var langData = document.getElementById('clbi-lang-data');
    return langData ? (langData.getAttribute('data-lang') || 'ko') : 'ko';
}

function normalizePageName(value) {
    return String(value || '')
        .split('?')[0]
        .replace(/^\/index\.php\//, '')
        .replace(/_/g, ' ')
        .trim();
}

function buildWikiPath(title) {
    return '/index.php/' + encodeURI(String(title || '').replace(/ /g, '_'));
}

function getLangShortCode(lang) {
    var map = { ko: 'KR', en: 'EN', zh: 'ZH', ja: 'JA', ru: 'RU', es: 'ES' };
    return map[lang] || String(lang || '').toUpperCase();
}

function getLanguageTargetTitle(lang) {
    var data = document.getElementById('clbi-lang-data');
    if (!data || !lang) return '';

    var keys = [
        'data-' + lang,
        'data-page-' + lang,
        'data-title-' + lang,
        'data-target-' + lang,
        'data-lang-' + lang
    ];

    for (var i = 0; i < keys.length; i++) {
        var value = data.getAttribute(keys[i]);
        if (value) return value;
    }

    return '';
}


var SIDEBAR_LANG_SVG_NS = 'http://www.w3.org/2000/svg';
var SIDEBAR_LANGUAGE_STATUS_TITLE = 'MediaWiki:LanguageStatus.json';
var SIDEBAR_LANGUAGE_LABELS = {
    ko: '한국어',
    en: 'English',
    zh: '中文',
    ja: '日本語',
    ru: 'Русский',
    es: 'Español'
};
var SIDEBAR_LANGUAGE_DIAL_LABELS = {
    ko: '한국어',
    en: 'ENG',
    zh: '中文',
    ja: '日本語',
    ru: 'РУС',
    es: 'ESP'
};
var SIDEBAR_LANGUAGE_STATUS_VALUES = {
    available: true,
    wip: true,
    unavailable: true
};

var sidebarLanguageStatusRegistry = {};
var sidebarLanguageStatusLoaded = false;
var sidebarLanguageStatusLoading = false;
var sidebarLanguageStatusCallbacks = [];

var sidebarLanguageState = {
    order: ['ko', 'en', 'zh', 'ja', 'ru', 'es'],
    currentLang: 'ko',
    baseIndex: 0,
    selectedIndex: 0,
    rotation: 0,
    dragging: false,
    dragMoved: false,
    dragStartX: 0,
    dragStartY: 0,
    dragStartRotation: 0,
    dragAxis: null,
    pointerCaptured: false,
    lastX: 0,
    lastTime: 0,
    releaseVelocity: 0,
    suppressClickUntil: 0,
    raf: null,
    pendingRotation: 0,
    snapTimer: null,
    inertiaRaf: null,
    navigateTimer: null,
    bound: false,
    boundElement: null,
    rotor: null,
    cx: 101,
    cy: 119,
    outerR: 109,
    innerR: 28,
    sectorAngle: 30,
    halfSector: 15,
    repeats: 8,
    dragSensitivity: 0.58,
    maxSpinVelocity: 1.75,
    minSpinVelocity: 0.055,
    spinDecel: 0.00185
};

function createSidebarLanguageSvgEl(tag) {
    return document.createElementNS(SIDEBAR_LANG_SVG_NS, tag);
}

function normalizeSidebarLanguageIndex(index) {
    var length = sidebarLanguageState.order.length;
    var normalized = index % length;
    return normalized < 0 ? normalized + length : normalized;
}

function getSidebarLanguageName(lang) {
    return SIDEBAR_LANGUAGE_LABELS[lang] || String(lang || '').toUpperCase();
}

function getSidebarLanguageDialName(lang) {
    return SIDEBAR_LANGUAGE_DIAL_LABELS[lang] || getSidebarLanguageName(lang);
}

function normalizeSidebarLanguageStatusValue(value) {
    value = String(value == null ? '' : value).toLowerCase().trim();
    return SIDEBAR_LANGUAGE_STATUS_VALUES[value] ? value : '';
}

function getSidebarLanguageStatusPageKey() {
    var raw = String(mw.config.get('wgPageName') || '').trim();
    var normalized = normalizePageName(raw);

    return normalized || raw || '대문';
}

function getSidebarLanguageStatusEntry() {
    var registry = sidebarLanguageStatusRegistry || {};
    var pages = registry.pages && typeof registry.pages === 'object' ? registry.pages : registry;
    var raw = String(mw.config.get('wgPageName') || '').trim();
    var normalized = normalizePageName(raw);
    var title = String(mw.config.get('wgTitle') || '').trim();
    var keys = [
        normalized,
        raw,
        raw.replace(/_/g, ' '),
        normalized.replace(/ /g, '_'),
        title,
        title.replace(/_/g, ' ')
    ];
    var i;

    for (i = 0; i < keys.length; i += 1) {
        if (keys[i] && pages[keys[i]] && typeof pages[keys[i]] === 'object') {
            return pages[keys[i]];
        }
    }

    return {};
}

function getSidebarLanguageStatusOverride(lang) {
    var entry = getSidebarLanguageStatusEntry();
    return normalizeSidebarLanguageStatusValue(entry[lang]);
}

function flushSidebarLanguageStatusCallbacks() {
    var callbacks = sidebarLanguageStatusCallbacks.slice();
    sidebarLanguageStatusCallbacks.length = 0;

    callbacks.forEach(function(callback) {
        if (typeof callback === 'function') {
            callback(sidebarLanguageStatusRegistry);
        }
    });
}

function loadSidebarLanguageStatusRegistry(callback, force) {
    if (typeof callback === 'function') {
        sidebarLanguageStatusCallbacks.push(callback);
    }

    if (sidebarLanguageStatusLoaded && !force) {
        flushSidebarLanguageStatusCallbacks();
        return;
    }

    if (sidebarLanguageStatusLoading) return;

    sidebarLanguageStatusLoading = true;

    $.ajax({
        url: mw.util.getUrl(SIDEBAR_LANGUAGE_STATUS_TITLE, {
            action: 'raw',
            ctype: 'application/json',
            _: String(Date.now())
        }),
        dataType: 'text',
        cache: false
    }).done(function(text) {
        var parsed = {};

        try {
            parsed = text ? JSON.parse(text) : {};
        } catch (err) {
            console.error('LanguageStatus.json parse failed:', err);
            parsed = {};
        }

        sidebarLanguageStatusRegistry = parsed && typeof parsed === 'object' ? parsed : {};
    }).fail(function() {
        sidebarLanguageStatusRegistry = {};
    }).always(function() {
        sidebarLanguageStatusLoaded = true;
        sidebarLanguageStatusLoading = false;
        flushSidebarLanguageStatusCallbacks();
    });
}

window.CLBI_LANGUAGE_STATUS = {
    title: SIDEBAR_LANGUAGE_STATUS_TITLE,
    languages: sidebarLanguageState.order.slice(),
    labels: SIDEBAR_LANGUAGE_LABELS,
    dialLabels: SIDEBAR_LANGUAGE_DIAL_LABELS,
    getPageKey: getSidebarLanguageStatusPageKey,
    getRegistry: function() {
        return sidebarLanguageStatusRegistry || {};
    },
    reload: function(callback) {
        sidebarLanguageStatusLoaded = false;
        loadSidebarLanguageStatusRegistry(function() {
            renderSidebarLanguageBox();
            if (typeof callback === 'function') callback(sidebarLanguageStatusRegistry);
        }, true);
    },
    refreshDial: function() {
        renderSidebarLanguageBox();
    }
};

function getSidebarLanguageMeta(lang) {
    var currentLang = getCurrentLang();
    var targetTitle = getLanguageTargetTitle(lang);
    var isCurrent = lang === currentLang;

    return {
        lang: lang,
        code: getLangShortCode(lang),
        name: getSidebarLanguageName(lang),
        dialName: getSidebarLanguageDialName(lang),
        targetTitle: targetTitle,
        isCurrent: isCurrent,
        canMove: !!targetTitle && !isCurrent
    };
}

function getSidebarLanguageStatus(meta) {
    var override;

    if (!meta) {
        return {
            className: 'is-locked',
            label: 'UNAVAILABLE',
            canApply: false
        };
    }

    if (meta.isCurrent) {
        return {
            className: 'is-current',
            label: 'CURRENT',
            canApply: false
        };
    }

    override = getSidebarLanguageStatusOverride(meta.lang);

    if (override === 'wip') {
        return {
            className: 'is-locked',
            label: 'WIP',
            canApply: false
        };
    }

    if (override === 'unavailable') {
        return {
            className: 'is-locked',
            label: 'UNAVAILABLE',
            canApply: false
        };
    }

    if (override === 'available' || meta.targetTitle) {
        return {
            className: meta.targetTitle ? 'is-ready' : 'is-locked',
            label: meta.targetTitle ? 'AVAILABLE' : 'UNAVAILABLE',
            canApply: !!meta.targetTitle
        };
    }

    return {
        className: 'is-locked',
        label: 'UNAVAILABLE',
        canApply: false
    };
}

function sidebarLanguageRad(deg) {
    return (deg * Math.PI) / 180;
}

function sidebarLanguagePointAt(radius, deg) {
    var state = sidebarLanguageState;
    var angle = sidebarLanguageRad(deg);

    return {
        x: state.cx + Math.sin(angle) * radius,
        y: state.cy - Math.cos(angle) * radius
    };
}

function getSidebarLanguageSectorPath(start, end) {
    var state = sidebarLanguageState;
    var p1 = sidebarLanguagePointAt(state.outerR, start);
    var p2 = sidebarLanguagePointAt(state.outerR, end);
    var p3 = sidebarLanguagePointAt(state.innerR, end);
    var p4 = sidebarLanguagePointAt(state.innerR, start);
    var largeArc = Math.abs(end - start) > 180 ? 1 : 0;

    return [
        'M', p1.x.toFixed(3), p1.y.toFixed(3),
        'A', state.outerR, state.outerR, 0, largeArc, 1, p2.x.toFixed(3), p2.y.toFixed(3),
        'L', p3.x.toFixed(3), p3.y.toFixed(3),
        'A', state.innerR, state.innerR, 0, largeArc, 0, p4.x.toFixed(3), p4.y.toFixed(3),
        'Z'
    ].join(' ');
}

function getSidebarLanguageShellPath() {
    return getSidebarLanguageSectorPath(-68, 68);
}

function getSidebarLanguageByStep(step) {
    var state = sidebarLanguageState;
    var index = normalizeSidebarLanguageIndex(state.baseIndex + step);

    return {
        index: index,
        meta: getSidebarLanguageMeta(state.order[index])
    };
}

function getSidebarLanguagePreviewIndex() {
    var state = sidebarLanguageState;
    var step = Math.round(-state.rotation / state.sectorAngle);
    return normalizeSidebarLanguageIndex(state.baseIndex + step);
}

function getSidebarLanguagePreviewMeta() {
    var state = sidebarLanguageState;
    return getSidebarLanguageMeta(state.order[getSidebarLanguagePreviewIndex()]);
}

function makeSidebarLanguageSector(step) {
    var state = sidebarLanguageState;
    var item = getSidebarLanguageByStep(step);
    var group = createSidebarLanguageSvgEl('g');
    var path = createSidebarLanguageSvgEl('path');
    var label = createSidebarLanguageSvgEl('text');
    var labelY = state.cy - 78;
    var angle = step * state.sectorAngle;

    group.setAttribute('class', 'sidebar-lang-sector-group');
    group.setAttribute('data-step', String(step));
    group.setAttribute('data-index', String(item.index));
    group.setAttribute('data-lang', item.meta.lang);
    group.setAttribute('transform', 'rotate(' + angle + ' ' + state.cx + ' ' + state.cy + ')');

    path.setAttribute('class', 'sidebar-lang-sector');
    path.setAttribute('d', getSidebarLanguageSectorPath(-state.halfSector, state.halfSector));

    label.setAttribute('class', 'sidebar-lang-sector-label');
    label.setAttribute('x', String(state.cx));
    label.setAttribute('y', String(labelY + 5));
    label.textContent = item.meta.dialName || item.meta.name;

    group.appendChild(path);
    group.appendChild(label);

    group.addEventListener('click', function(e) {
        if (sidebarLanguageState.dragging || performance.now() < sidebarLanguageState.suppressClickUntil) return;

        e.preventDefault();
        e.stopPropagation();

        cancelSidebarLanguageSpin();
        snapSidebarLanguageToStep(parseInt(group.getAttribute('data-step') || '0', 10), true);
    });

    return group;
}

function renderSidebarLanguageWheel() {
    var state = sidebarLanguageState;
    var fan = document.getElementById('clbi-sidebar-lang-fan');
    var svg;
    var defs;
    var clip;
    var clipPath;
    var shadowBlur;
    var blur;
    var fixedDepthGradient;
    var shell;
    var clipped;
    var rotor;
    var fixedDepthPath;
    var fixedFocus;
    var shadowSoft;
    var shadowHard;
    var rim;
    var pointer;
    var tri;
    var line;
    var step;

    if (!fan) return;

    fan.innerHTML = '';

    svg = createSidebarLanguageSvgEl('svg');
    svg.setAttribute('class', 'sidebar-lang-fan-svg');
    svg.setAttribute('viewBox', '0 0 202 150');
    svg.setAttribute('preserveAspectRatio', 'xMidYMid meet');
    svg.setAttribute('role', 'img');
    svg.setAttribute('aria-label', '언어 선택 다이얼');

    defs = createSidebarLanguageSvgEl('defs');

    clip = createSidebarLanguageSvgEl('clipPath');
    clip.setAttribute('id', 'clbi-sidebar-language-fan-clip');
    clipPath = createSidebarLanguageSvgEl('path');
    clipPath.setAttribute('d', getSidebarLanguageShellPath());
    clip.appendChild(clipPath);

    shadowBlur = createSidebarLanguageSvgEl('filter');
    shadowBlur.setAttribute('id', 'clbi-sidebar-language-shadow-blur');
    shadowBlur.setAttribute('x', '-20%');
    shadowBlur.setAttribute('y', '-20%');
    shadowBlur.setAttribute('width', '140%');
    shadowBlur.setAttribute('height', '140%');
    blur = createSidebarLanguageSvgEl('feGaussianBlur');
    blur.setAttribute('stdDeviation', '3');
    shadowBlur.appendChild(blur);

    fixedDepthGradient = createSidebarLanguageSvgEl('linearGradient');
    fixedDepthGradient.setAttribute('id', 'clbi-sidebar-language-fixed-depth');
    fixedDepthGradient.setAttribute('x1', '0');
    fixedDepthGradient.setAttribute('y1', '0');
    fixedDepthGradient.setAttribute('x2', '0');
    fixedDepthGradient.setAttribute('y2', '1');

    [
        ['0%', '#ffffff', '0.030'],
        ['34%', '#ffffff', '0.006'],
        ['58%', '#000000', '0.030'],
        ['100%', '#000000', '0.250']
    ].forEach(function(item) {
        var stop = createSidebarLanguageSvgEl('stop');
        stop.setAttribute('offset', item[0]);
        stop.setAttribute('stop-color', item[1]);
        stop.setAttribute('stop-opacity', item[2]);
        fixedDepthGradient.appendChild(stop);
    });

    defs.appendChild(clip);
    defs.appendChild(shadowBlur);
    defs.appendChild(fixedDepthGradient);
    svg.appendChild(defs);

    shell = createSidebarLanguageSvgEl('path');
    shell.setAttribute('class', 'sidebar-lang-shell');
    shell.setAttribute('d', getSidebarLanguageShellPath());
    svg.appendChild(shell);

    clipped = createSidebarLanguageSvgEl('g');
    clipped.setAttribute('clip-path', 'url(#clbi-sidebar-language-fan-clip)');

    rotor = createSidebarLanguageSvgEl('g');
    rotor.setAttribute('id', 'clbi-sidebar-lang-wheel-rotor');
    rotor.setAttribute('class', 'sidebar-lang-wheel-rotor');

    for (step = -state.repeats; step <= state.repeats; step += 1) {
        rotor.appendChild(makeSidebarLanguageSector(step));
    }

    clipped.appendChild(rotor);
    svg.appendChild(clipped);

    fixedDepthPath = createSidebarLanguageSvgEl('path');
    fixedDepthPath.setAttribute('class', 'sidebar-lang-fixed-depth');
    fixedDepthPath.setAttribute('d', getSidebarLanguageShellPath());
    svg.appendChild(fixedDepthPath);

    fixedFocus = createSidebarLanguageSvgEl('path');
    fixedFocus.setAttribute('class', 'sidebar-lang-fixed-focus');
    fixedFocus.setAttribute('d', getSidebarLanguageSectorPath(-state.halfSector, state.halfSector));
    svg.appendChild(fixedFocus);

    shadowSoft = createSidebarLanguageSvgEl('path');
    shadowSoft.setAttribute('class', 'sidebar-lang-inner-shadow-soft');
    shadowSoft.setAttribute('d', getSidebarLanguageShellPath());
    svg.appendChild(shadowSoft);

    shadowHard = createSidebarLanguageSvgEl('path');
    shadowHard.setAttribute('class', 'sidebar-lang-inner-shadow-hard');
    shadowHard.setAttribute('d', getSidebarLanguageShellPath());
    svg.appendChild(shadowHard);

    rim = createSidebarLanguageSvgEl('path');
    rim.setAttribute('class', 'sidebar-lang-rim');
    rim.setAttribute('d', getSidebarLanguageShellPath());
    svg.appendChild(rim);

    pointer = createSidebarLanguageSvgEl('g');
    pointer.setAttribute('class', 'sidebar-lang-fixed-pointer');
    pointer.setAttribute('clip-path', 'url(#clbi-sidebar-language-fan-clip)');

    tri = createSidebarLanguageSvgEl('path');
    tri.setAttribute('class', 'sidebar-lang-pointer-triangle');
    tri.setAttribute('d', 'M ' + (state.cx - 10) + ' 10 L ' + (state.cx + 10) + ' 10 L ' + state.cx + ' 26 Z');
    pointer.appendChild(tri);

    line = createSidebarLanguageSvgEl('line');
    line.setAttribute('class', 'sidebar-lang-pointer-line');
    line.setAttribute('x1', String(state.cx));
    line.setAttribute('x2', String(state.cx));
    line.setAttribute('y1', '24');
    line.setAttribute('y2', '112');
    pointer.appendChild(line);

    svg.appendChild(pointer);
    fan.appendChild(svg);

    state.rotor = rotor;
    setSidebarLanguageRotation(state.rotation, false);
}

function updateSidebarLanguageDial() {
    var state = sidebarLanguageState;
    var meta = getSidebarLanguagePreviewMeta();
    var status = getSidebarLanguageStatus(meta);
    var selector = document.getElementById('clbi-sidebar-lang-selector');
    var apply = document.getElementById('clbi-sidebar-lang-apply');
    var selectedValue = document.getElementById('clbi-sidebar-lang-selected-value');
    var availabilityPanel = document.getElementById('clbi-sidebar-lang-availability-panel');
    var availabilityValue = document.getElementById('clbi-sidebar-lang-availability-value');

    if (selectedValue) {
        selectedValue.textContent = meta.name;
    }

    if (availabilityPanel) {
        availabilityPanel.classList.remove('is-ready', 'is-current', 'is-locked');
        availabilityPanel.classList.add(status.className);
    }

    if (availabilityValue) {
        availabilityValue.textContent = status.label;
    }

    if (apply) {
        apply.classList.toggle('is-disabled', !status.canApply);
        apply.setAttribute('aria-disabled', status.canApply ? 'false' : 'true');
        apply.setAttribute('aria-label', status.canApply ? (meta.name + ' 적용') : (meta.isCurrent ? '현재 언어' : '사용할 수 없는 언어'));
    }

    if (selector) {
        selector.setAttribute('data-selected-lang', meta.lang);
        selector.setAttribute('data-selected-code', meta.code);
        selector.classList.toggle('is-current', meta.isCurrent);
        selector.classList.toggle('is-ready', status.canApply);
        selector.classList.toggle('is-locked', !status.canApply && !meta.isCurrent);
        selector.classList.toggle('is-dragging', !!state.dragging);
        selector.classList.toggle('is-spinning', !!state.inertiaRaf);
    }

    return {
        meta: meta,
        status: status
    };
}

function setSidebarLanguageRotation(value, animate) {
    var state = sidebarLanguageState;
    state.rotation = value;
    updateSidebarLanguageDial();

    if (!state.rotor) return;

    if (animate) {
        $('#clbi-sidebar-lang-selector').addClass('is-snapping');
    } else {
        $('#clbi-sidebar-lang-selector').removeClass('is-snapping');
    }

    state.rotor.style.transform = 'rotate(' + state.rotation.toFixed(3) + 'deg)';
}

function requestSidebarLanguageRotation(value) {
    var state = sidebarLanguageState;
    state.pendingRotation = value;

    if (state.raf) return;

    state.raf = requestAnimationFrame(function() {
        state.raf = null;
        setSidebarLanguageRotation(state.pendingRotation, false);
    });
}

function cancelSidebarLanguageSpin() {
    var state = sidebarLanguageState;

    if (state.inertiaRaf) {
        cancelAnimationFrame(state.inertiaRaf);
        state.inertiaRaf = null;
    }

    $('#clbi-sidebar-lang-selector').removeClass('is-spinning');
}

function finishSidebarLanguageSnap(nearestIndex, callback) {
    var state = sidebarLanguageState;

    state.baseIndex = normalizeSidebarLanguageIndex(nearestIndex);
    state.selectedIndex = state.baseIndex;
    state.rotation = 0;
    state.dragging = false;

    $('#clbi-sidebar-lang-selector').removeClass('is-snapping is-dragging is-spinning');

    renderSidebarLanguageWheel();
    updateSidebarLanguageDial();

    if (typeof callback === 'function') {
        callback(getSidebarLanguageMeta(state.order[state.selectedIndex]));
    }
}

function snapSidebarLanguageToStep(step, animate, callback) {
    var state = sidebarLanguageState;
    var targetRotation = -step * state.sectorAngle;
    var nearestIndex = normalizeSidebarLanguageIndex(state.baseIndex + step);

    cancelSidebarLanguageSpin();
    clearTimeout(state.snapTimer);

    state.selectedIndex = nearestIndex;
    setSidebarLanguageRotation(targetRotation, !!animate);

    state.snapTimer = setTimeout(function() {
        finishSidebarLanguageSnap(nearestIndex, callback);
    }, animate ? 230 : 0);
}

function snapSidebarLanguageNearest(callback) {
    var state = sidebarLanguageState;
    var step = Math.round(-state.rotation / state.sectorAngle);
    snapSidebarLanguageToStep(step, true, callback);
}

function startSidebarLanguageInertiaSpin(initialVelocity) {
    var state = sidebarLanguageState;
    var velocity;
    var lastFrame;

    cancelSidebarLanguageSpin();

    velocity = Math.max(-state.maxSpinVelocity, Math.min(state.maxSpinVelocity, initialVelocity));

    if (Math.abs(velocity) < state.minSpinVelocity) {
        snapSidebarLanguageNearest();
        return;
    }

    $('#clbi-sidebar-lang-selector').addClass('is-spinning');
    lastFrame = performance.now();

    function frame(now) {
        var dt = Math.min(34, Math.max(1, now - lastFrame));
        var sign = velocity < 0 ? -1 : 1;
        var nextSpeed;

        lastFrame = now;
        state.rotation += velocity * dt;
        setSidebarLanguageRotation(state.rotation, false);

        nextSpeed = Math.max(0, Math.abs(velocity) - (state.spinDecel * dt));
        velocity = sign * nextSpeed;

        if (nextSpeed <= state.minSpinVelocity) {
            state.inertiaRaf = null;
            $('#clbi-sidebar-lang-selector').removeClass('is-spinning');
            snapSidebarLanguageNearest();
            return;
        }

        state.inertiaRaf = requestAnimationFrame(frame);
    }

    state.inertiaRaf = requestAnimationFrame(frame);
}

function scheduleSidebarLanguageNavigation(meta) {
    var status = getSidebarLanguageStatus(meta);

    if (!meta || !status.canApply) return;

    clearTimeout(sidebarLanguageState.navigateTimer);
    sidebarLanguageState.navigateTimer = setTimeout(function() {
        var title = getLanguageTargetTitle(meta.lang);

        if (!title || meta.lang === getCurrentLang()) return;

        window.location.href = buildWikiPath(title);
    }, 70);
}

function setSidebarLanguageSelection(lang) {
    var state = sidebarLanguageState;
    var index = state.order.indexOf(lang);

    if (index < 0) index = state.order.indexOf(getCurrentLang());
    if (index < 0) index = 0;

    if (state.raf) {
        cancelAnimationFrame(state.raf);
        state.raf = null;
    }

    cancelSidebarLanguageSpin();
    clearTimeout(state.snapTimer);

    state.currentLang = lang;
    state.baseIndex = index;
    state.selectedIndex = index;
    state.rotation = 0;
    state.dragging = false;
    state.dragMoved = false;
    state.releaseVelocity = 0;

    renderSidebarLanguageWheel();
    updateSidebarLanguageDial();
}

function moveSidebarLanguageSelection(delta) {
    snapSidebarLanguageToStep(-delta, true);
}

function bindSidebarLanguageSelector() {
    var state = sidebarLanguageState;
    var selector = document.getElementById('clbi-sidebar-lang-selector');
    var fan = document.getElementById('clbi-sidebar-lang-fan');
    var apply = document.getElementById('clbi-sidebar-lang-apply');

    if (!selector || !fan || !apply) return;

    if (state.bound && state.boundElement === selector) return;

    state.bound = true;
    state.boundElement = selector;

    fan.addEventListener('pointerdown', function(e) {
        cancelSidebarLanguageSpin();
        clearTimeout(state.snapTimer);

        state.dragging = true;
        state.dragMoved = false;
        state.dragStartX = e.clientX;
        state.dragStartY = e.clientY || 0;
        state.dragStartRotation = state.rotation;
        state.dragAxis = null;
        state.pointerCaptured = false;
        state.lastX = e.clientX;
        state.lastTime = performance.now();
        state.releaseVelocity = 0;

        selector.classList.add('is-dragging');
        selector.classList.remove('is-snapping');

        /*
        Vertical page scrolling must stay available when the pointer starts on
        the language dial. Capture and preventDefault are delayed until a
        horizontal drag is confirmed.
        */
    });

    fan.addEventListener('pointermove', function(e) {
        var now;
        var totalDx;
        var totalDy;
        var frameDx;
        var dt;
        var instantVelocity;

        if (!state.dragging) return;

        totalDx = e.clientX - state.dragStartX;
        totalDy = (e.clientY || 0) - state.dragStartY;

        if (!state.dragAxis && (Math.abs(totalDx) > 4 || Math.abs(totalDy) > 4)) {
            state.dragAxis = Math.abs(totalDx) >= Math.abs(totalDy) ? 'x' : 'y';

            if (state.dragAxis === 'y') {
                state.dragging = false;
                state.dragMoved = false;
                state.dragAxis = null;
                state.pointerCaptured = false;
                selector.classList.remove('is-dragging');
                return;
            }

            if (fan.setPointerCapture && e.pointerId != null) {
                try {
                    fan.setPointerCapture(e.pointerId);
                    state.pointerCaptured = true;
                } catch (err) {
                    state.pointerCaptured = false;
                }
            }
        }

        if (state.dragAxis !== 'x') return;

        now = performance.now();
        frameDx = e.clientX - state.lastX;
        dt = Math.max(1, now - state.lastTime);

        if (Math.abs(totalDx) > 3) state.dragMoved = true;

        instantVelocity = (frameDx * state.dragSensitivity) / dt;
        state.releaseVelocity = (state.releaseVelocity * 0.62) + (instantVelocity * 0.38);
        state.lastX = e.clientX;
        state.lastTime = now;

        requestSidebarLanguageRotation(state.dragStartRotation + totalDx * state.dragSensitivity);
        e.preventDefault();
        e.stopPropagation();
    });

    function finishDrag(e) {
        var velocityAge;
        var throwVelocity;
        var wasHorizontal;

        if (!state.dragging) return;

        wasHorizontal = state.dragAxis === 'x';
        state.dragging = false;
        selector.classList.remove('is-dragging');

        if (fan.releasePointerCapture && state.pointerCaptured && e && e.pointerId != null) {
            try { fan.releasePointerCapture(e.pointerId); } catch (err) {}
        }

        state.pointerCaptured = false;
        state.dragAxis = null;

        if (!wasHorizontal && !state.dragMoved) {
            return;
        }

        velocityAge = performance.now() - state.lastTime;
        throwVelocity = velocityAge > 120 ? 0 : state.releaseVelocity;

        if (state.dragMoved) {
            state.suppressClickUntil = performance.now() + 180;
        }

        if (state.dragMoved && Math.abs(throwVelocity) >= state.minSpinVelocity) {
            startSidebarLanguageInertiaSpin(throwVelocity);
        } else {
            snapSidebarLanguageNearest();
        }

        if (e) {
            e.preventDefault();
            e.stopPropagation();
        }
    }

    fan.addEventListener('pointerup', finishDrag);
    fan.addEventListener('pointercancel', finishDrag);
    fan.addEventListener('lostpointercapture', function() {
        if (!state.dragging) return;

        state.dragging = false;
        state.pointerCaptured = false;
        state.dragAxis = null;
        selector.classList.remove('is-dragging');

        if (state.dragMoved && Math.abs(state.releaseVelocity) >= state.minSpinVelocity) {
            state.suppressClickUntil = performance.now() + 180;
            startSidebarLanguageInertiaSpin(state.releaseVelocity);
        } else {
            snapSidebarLanguageNearest();
        }
    });

    apply.addEventListener('click', function(e) {
        e.preventDefault();
        e.stopPropagation();

        snapSidebarLanguageNearest(function(meta) {
            scheduleSidebarLanguageNavigation(meta);
        });
    });

    selector.addEventListener('keydown', function(e) {
        if (e.key === 'ArrowLeft') {
            moveSidebarLanguageSelection(-1);
            e.preventDefault();
        }

        if (e.key === 'ArrowRight') {
            moveSidebarLanguageSelection(1);
            e.preventDefault();
        }

        if (e.key === 'Enter' || e.key === ' ') {
            apply.click();
            e.preventDefault();
        }
    });
}

function renderSidebarLanguageBox() {
    bindSidebarLanguageSelector();
    setSidebarLanguageSelection(getCurrentLang());

    if (!sidebarLanguageStatusLoaded) {
        loadSidebarLanguageStatusRegistry(function() {
            setSidebarLanguageSelection(getCurrentLang());
        });
    }
}

function loadRecentChangesList(targetSelector, limit) {
    var $target = $(targetSelector);

    if (!$target.length) return;

    var lang = getCurrentLang();
    var t = (window.LANG && window.LANG[lang]) ? window.LANG[lang] : (window.LANG ? window.LANG.ko : null);
    var isNewsList = $target.closest('.clbi-left-news-box').length > 0;

    function escapeHtml(value) {
        return String(value == null ? '' : value)
            .replace(/&/g, '&amp;')
            .replace(/</g, '&lt;')
            .replace(/>/g, '&gt;')
            .replace(/"/g, '&quot;')
            .replace(/'/g, '&#039;');
    }

    $target.html((t && t.loading) ? t.loading : '불러오는 중...');

    $.getJSON(
        '/api.php?action=query&list=recentchanges&rclimit=' + encodeURIComponent(limit || 5) + '&rcprop=title|timestamp|user&format=json&rcnamespace=0&rctype=edit|new',
        function(data) {
            var items = data && data.query ? data.query.recentchanges : [];
            var html = '';

            if (!items || !items.length) {
                $target.html('표시할 변경 사항이 없습니다.');
                return;
            }

            $.each(items, function(i, item) {
                var label = timeAgo(item.timestamp);
                var title = item.title || '';
                var userName = item.user || 'Unknown';
                var pageHref = buildWikiPath(title);
                var avatarSrc = '/index.php?title=특수:Redirect/file/Pfp-' + encodeURIComponent(userName) + '.png';

                if (isNewsList) {
                    html +=
                        '<a href="' + escapeHtml(pageHref) + '" class="news-recent-item">' +
                            '<img class="news-recent-avatar" src="' + escapeHtml(avatarSrc) + '" alt="" onerror="this.onerror=null;this.src=\'/index.php?title=특수:Redirect/file/Pfp-default.png\';">' +
                            '<div class="news-recent-main">' +
                                '<div class="news-recent-title-wrap">' +
                                    '<span class="news-recent-title">' + escapeHtml(title) + '</span>' +
                                '</div>' +
                                '<div class="news-recent-meta">' +
                                    '<span class="news-recent-user">@' + escapeHtml(userName) + '</span>' +
                                '</div>' +
                            '</div>' +
                            '<span class="news-recent-time">' + escapeHtml(label) + '</span>' +
                        '</a>';
                } else {
                    html +=
                        '<div class="clbi-recent-item">' +
                            '<div class="clbi-recent-title-wrap">' +
                                '<a href="' + escapeHtml(pageHref) + '" class="clbi-recent-title">' + escapeHtml(title) + '</a>' +
                            '</div>' +
                            '<span class="clbi-recent-time">' + escapeHtml(label) + '</span>' +
                        '</div>';
                }
            });

            if (isNewsList) {
                $target.html(
                    '<div class="news-recent-viewport">' +
                        '<div class="news-recent-stack">' + html + '</div>' +
                    '</div>'
                );

                if (typeof ensureNewsBottomFinish === 'function') {
                    ensureNewsBottomFinish();
                }
            } else {
                $target.html(html);
            }

            if (isNewsList && typeof scheduleAdaptiveLeftRecentItems === 'function') {
                scheduleAdaptiveLeftRecentItems();
            }

            $target.find(isNewsList ? '.news-recent-item' : '.clbi-recent-item').each(function() {
                var wrap = $(this).find(isNewsList ? '.news-recent-title-wrap' : '.clbi-recent-title-wrap');
                var title = $(this).find(isNewsList ? '.news-recent-title' : '.clbi-recent-title');

                if (!wrap.length || !title.length) return;

                var wrapW = wrap.width();
                var titleW = title[0].scrollWidth;

                if (titleW > wrapW + 20) {
                    var duration = titleW / 40;

                    title.css({
                        animation: 'clbi-scroll ' + duration + 's linear infinite',
                        '--scroll-dist': '-' + (titleW - wrapW + 8) + 'px'
                    });
                }
            });
        }
    ).fail(function() {
        var lang = getCurrentLang();
        var t = (window.LANG && window.LANG[lang]) ? window.LANG[lang] : (window.LANG ? window.LANG.ko : null);

        $target.html((t && t.loadFail) ? t.loadFail : '불러오기 실패');
    });
}


function ensureRecentViewport() {
    var list = document.getElementById('clbi-left-recent-list');
    var viewport;
    var stack;
    var children;

    if (!list) return null;

    viewport = list.querySelector(':scope > .news-recent-viewport');
    stack = viewport ? viewport.querySelector(':scope > .news-recent-stack') : null;

    if (viewport && stack) return viewport;

    children = Array.prototype.slice.call(list.children || []);

    viewport = document.createElement('div');
    viewport.className = 'news-recent-viewport';

    stack = document.createElement('div');
    stack.className = 'news-recent-stack';

    children.forEach(function (child) {
        if (child.classList && child.classList.contains('news-recent-viewport')) return;
        stack.appendChild(child);
    });

    viewport.appendChild(stack);
    list.appendChild(viewport);

    return viewport;
}

function ensureNewsBottomFinish() {
    var newsBox = document.querySelector('#clbi-left-sidebar .clbi-left-news-box');
    var content = newsBox ? newsBox.querySelector('.clbi-news-box') : null;
    var finish;

    if (!content) return null;

    finish = content.querySelector(':scope > .news-bottom-finish');

    if (!finish) {
        finish = document.createElement('div');
        finish.className = 'news-bottom-finish';
        finish.setAttribute('aria-hidden', 'true');
        content.appendChild(finish);
    }

    return finish;
}

function updateAdaptiveLeftRecentItems() {
    var list = document.getElementById('clbi-left-recent-list');
    var main = document.querySelector('.liberty-content-main');
    var newsBox;
    var newsContent;
    var viewport;
    var finish;
    var items;
    var followingHeight;
    var sibling;
    var newsRect;
    var mainRect;
    var naturalHeight;
    var availableHeight;
    var constrainedHeight;
    var contentRect;
    var listRect;
    var recentHeight;
    var finishHeight = 12;
    var minNewsHeight = 150;
    var minRecentHeight = 32;

    if (!list || !main) return;

    newsBox = list.closest('.clbi-left-news-box');
    newsContent = newsBox ? newsBox.querySelector('.clbi-news-box') : null;
    viewport = ensureRecentViewport();
    finish = ensureNewsBottomFinish();
    items = Array.prototype.slice.call(list.querySelectorAll('.news-recent-item'));

    if (!newsBox || !newsContent || !viewport || !finish || !items.length) return;

    /*
    기본 상태에서는 원래 내용 높이만 차지한다.
    이 상태를 먼저 만들어 naturalHeight를 측정한다.
    */
    newsBox.classList.remove('is-adaptive-constrained');
    newsBox.style.removeProperty('--adaptive-news-h');
    list.classList.remove('is-adaptive-faded');
    list.removeAttribute('data-adaptive-limit');
    list.style.removeProperty('--adaptive-recent-h');

    items.forEach(function (item) {
        item.classList.remove('is-adaptive-hidden');
    });

    followingHeight = 0;
    sibling = newsBox.nextElementSibling;

    while (sibling) {
        if (sibling.offsetParent !== null) {
            followingHeight += Math.ceil(sibling.getBoundingClientRect().height || 0) + 8;
        }

        sibling = sibling.nextElementSibling;
    }

    newsRect = newsBox.getBoundingClientRect();
    mainRect = main.getBoundingClientRect();

    naturalHeight = Math.ceil(newsRect.height);
    availableHeight = Math.floor(mainRect.bottom - newsRect.top - followingHeight);

    /*
    충분한 높이에서는 절대 늘리지 않는다.
    뉴스 박스는 항목을 담는 컨테이너이므로 자연 높이를 유지한다.
    부족할 때만 본문 하단 기준선 안으로 접어 넣는다.
    */
    if (naturalHeight <= availableHeight) {
        return;
    }

    constrainedHeight = Math.max(minNewsHeight, availableHeight);

    newsBox.style.setProperty('--adaptive-news-h', constrainedHeight + 'px');
    newsBox.classList.add('is-adaptive-constrained');

    /*
    adaptive 상태에서 하단 마감은 실제 finish 행이 담당한다.
    recent feed는 finish 위에서만 끝난다.
    */
    newsBox.offsetHeight;

    contentRect = newsContent.getBoundingClientRect();
    listRect = list.getBoundingClientRect();

    recentHeight = Math.floor(contentRect.bottom - listRect.top - finishHeight);
    recentHeight = Math.max(minRecentHeight, recentHeight);

    list.style.setProperty('--adaptive-recent-h', recentHeight + 'px');
    list.classList.add('is-adaptive-faded');

    if (typeof scheduleClbiContentBottomGap === 'function') {
        scheduleClbiContentBottomGap();
    }
}

function scheduleAdaptiveLeftRecentItems() {
    window.requestAnimationFrame(function () {
        updateAdaptiveLeftRecentItems();
    });

    window.setTimeout(updateAdaptiveLeftRecentItems, 80);
    window.setTimeout(updateAdaptiveLeftRecentItems, 240);
}



function updateClbiContentBottomGap(iteration) {
    var content = document.querySelector('.container-fluid.liberty-content');
    var main = document.querySelector('.liberty-content-main');
    var bottomNav = document.getElementById('clbi-bottom-nav-wrap');
    var desiredGap = 8;
    var contentRect;
    var bottomTop;
    var targetHeight;
    var currentHeight;

    iteration = iteration || 0;

    if (!content || !main || !bottomNav) return;

    /*
    이전 방식은 --clbi-content-extra 값을 더하고 빼서 간격을 맞추려 했다.
    하지만 중앙 본문은 .content-wrapper / .container-fluid / .liberty-content-main
    세 층을 거치기 때문에, 변수 보정이 실제 시각 하단에 안정적으로 닿지 않았다.

    이제는 하단 네비의 실제 top을 기준으로 .container-fluid.liberty-content의
    실제 높이를 직접 지정한다.

    목표:
    .liberty-content-main.bottom === #clbi-bottom-nav-wrap.top - 8px
    */
    contentRect = content.getBoundingClientRect();
    bottomTop = bottomNav.getBoundingClientRect().top;
    targetHeight = Math.floor(bottomTop - contentRect.top - desiredGap);
    targetHeight = Math.max(120, targetHeight);

    currentHeight = Math.round(content.getBoundingClientRect().height);

    content.style.setProperty('--clbi-content-extra', '0px');
    content.style.setProperty('height', targetHeight + 'px', 'important');
    content.style.setProperty('max-height', targetHeight + 'px', 'important');

    if (Math.abs(currentHeight - targetHeight) >= 1 && iteration < 4) {
        window.requestAnimationFrame(function () {
            updateClbiContentBottomGap(iteration + 1);
        });
    }
}

function scheduleClbiContentBottomGap() {
    window.requestAnimationFrame(function () {
        updateClbiContentBottomGap(0);
    });
    window.setTimeout(function () {
        updateClbiContentBottomGap(0);
    }, 40);
    window.setTimeout(function () {
        updateClbiContentBottomGap(0);
    }, 120);
    window.setTimeout(function () {
        updateClbiContentBottomGap(0);
    }, 280);
    window.setTimeout(function () {
        updateClbiContentBottomGap(0);
    }, 520);
}

// 국가_및_조합 전용 왼쪽 사이드바 이미지
function updateLeftSidebarNationsImage() {
    $('#clbi-left-nations-image').remove();
}

function setProfileActionLabel(selector, text) {
    var target = $(selector);
    var label = target.find('.profile-action-label');

    if (label.length) {
        label.text(text);
    } else {
        target.text(text);
    }
}

// 사이드바 업데이트
function updateSidebar() {
    if (!window.LANG) {
        setTimeout(updateSidebar, 100);
        return;
    }

    var currentLang = getCurrentLang();
    var t = (window.LANG && window.LANG[currentLang]) ? window.LANG[currentLang] : window.LANG.ko;

    var newsTitle = t.news || '뉴스';
    var changelogTitle = t.changelog || '체인지로그';
    var recentTitle = t.recentChanges || '최근 변경';
    var languageTitle = t.language || '언어';

    $('#clbi-title-left-language').text(languageTitle);
    renderSidebarLanguageBox();

    $('#clbi-title-left-news').text(newsTitle);
    $('#clbi-left-news-changelog-main').text(changelogTitle);
    $('#clbi-left-news-recent-main').text(recentTitle);

    $('#clbi-title-search a').text(t.search);
    $('#clbi-search-input').attr('placeholder', t.search + '...');
    $('#clbi-title-recent a').text(recentTitle);
    $('#clbi-title-guide-label').text(t.guide);
    $('#clbi-guide-link').text(t.getStarted);
    $('#clbi-title-links-label').text(t.links);

    setProfileActionLabel('#clbi-btn-contribution', t.contribution);
    setProfileActionLabel('#clbi-btn-watchlist', t.watchlist);
    setProfileActionLabel('#clbi-btn-preferences', t.preferences);
    setProfileActionLabel('#clbi-btn-logout', t.logout);
    setProfileActionLabel('#clbi-btn-login', t.login);

    var pageName = normalizePageName(mw.config.get('wgPageName'));
    var specialPage = String(mw.config.get('wgCanonicalSpecialPageName') || '');

$('#clbi-left-news-changelog-main').text(changelogTitle);
$('#clbi-left-news-recent-title').text('RECENT CHANGES');

    $('.clbi-user-btn').removeClass('clbi-user-btn-active');

    if (
        specialPage === 'Contributions' ||
        specialPage === '기여' ||
        pageName.indexOf('특수:기여') === 0 ||
        pageName.indexOf('Special:Contributions') === 0
    ) {
        $('#clbi-btn-contribution').addClass('clbi-user-btn-active');
    }

    if (specialPage === 'Watchlist') {
        $('#clbi-btn-watchlist').addClass('clbi-user-btn-active');
    }

    if (
        specialPage === '설정' ||
        pageName === '특수:설정' ||
        pageName === 'Special:설정'
    ) {
        $('#clbi-btn-preferences').addClass('clbi-user-btn-active');
    }

    $('.toggleBtn').each(function() {
        var btn = $(this);

        if (!$('#' + btn.data('target')).hasClass('folding-open')) {
            btn.text(t.expand);
        } else {
            btn.text(t.collapse);
        }
    });

    updateLeftSidebarNationsImage();
}

function canShowContentTools() {
    // 비로그인 사용자는 편집/역사/공유 버튼을 숨김
    if (!mw.config.get('wgUserName')) {
        return false;
    }

    // MediaWiki가 현재 문서를 편집 가능하지 않다고 판단하면 숨김
    var isEditable = mw.config.get('wgIsProbablyEditable');
    if (isEditable === false) {
        return false;
    }

    var relevantEditable = mw.config.get('wgRelevantPageIsProbablyEditable');
    if (relevantEditable === false) {
        return false;
    }

    return true;
}

function moveCatlinksToBottom() {
    var main = $('.liberty-content-main');
    var parserOutput = $('.liberty-content-main .mw-parser-output').first();
    var catlinks = $('.catlinks');

    if (!main.length || !catlinks.length) return;

    catlinks.each(function () {
        var cat = $(this);

        if (parserOutput.length) {
            cat.appendTo(parserOutput);
        } else {
            cat.appendTo(main);
        }
    });
}

// 대문 스타일
function initCategoryNavIfAvailable(root) {
    /*
    CategoryNav.js는 대문 카테고리 네비를 SVG로 생성한다.

    Common.js가 SPA로 본문을 갈아끼운 뒤에는 MediaWiki 원래 페이지 로드와 달리
    CategoryNav.js의 초기 DOMContentLoaded만으로는 새 mount를 다시 잡지 못할 수 있다.
    CategoryNav.js 자체도 mw.hook('wikipage.content')를 듣지만, 로드 순서와 SPA 타이밍이
    엇갈릴 수 있으므로 Common.js 쪽에서도 존재 여부를 확인한 뒤 한 번 더 호출한다.

    이 함수는 CategoryNav.js가 아직 로드되지 않았으면 아무 것도 하지 않는다.
    */
    if (
        window.CLBI &&
        window.CLBI.categoryNav &&
        typeof window.CLBI.categoryNav.init === 'function'
    ) {
        window.CLBI.categoryNav.init(root || document);
    }
}

function removeLegacyMainPageHero() {
    /*
    기존 대문 전용 레거시 요소 정리
    -----------------------------------------
    이전 대문 구조에서는 Common.js가 본문 바깥에 #clbi-main-logo를 직접 삽입하고,
    본문 안의 #clbi-main-crt-hero를 #clbi-main-crt-hero-wrap으로 감싸서
    .liberty-content-main 위쪽으로 재배치했다.

    새 대문은 본문 내부의 .main-portal이 로고, 알림, 카테고리 네비, 이미지 피드,
    방명록, 상태 패널을 모두 담당한다. 따라서 Common.js가 별도 로고나 CRT 래퍼를
    삽입하면 새 로고/콘텐츠와 중복된다.

    여기서는 JS가 만들던 바깥 로고와 CRT 래퍼를 제거하고, 예전 대문 원본이나
    캐시된 렌더 결과에 남아 있을 수 있는 #clbi-main-crt-hero도 제거한다.
    */
    $('#clbi-main-logo').remove();
    $('#clbi-main-crt-hero-wrap').remove();
    $('#clbi-main-crt-hero').remove();
}


function setNativePageTitleHiddenHard(hidden) {
    var selectors = [
        '.liberty-content-header',
        '.liberty-content-header .title',
        '.liberty-content-header .title h1',
        '.liberty-content-header h1',
        '#firstHeading',
        '.firstHeading',
        '.mw-first-heading',
        '.page-heading',
        '.page-header',
        '.mw-page-title-main',
        '.mw-page-title-namespace',
        '.mw-page-title-separator'
    ];

    document.querySelectorAll(selectors.join(',')).forEach(function(node) {
        if (!node || !node.style) return;

        if (hidden) {
            node.setAttribute('data-clbi-title-hidden', 'true');
            node.style.setProperty('display', 'none', 'important');
            node.style.setProperty('visibility', 'hidden', 'important');
            node.style.setProperty('height', '0', 'important');
            node.style.setProperty('min-height', '0', 'important');
            node.style.setProperty('margin', '0', 'important');
            node.style.setProperty('padding', '0', 'important');
            node.style.setProperty('overflow', 'hidden', 'important');
        } else if (node.getAttribute('data-clbi-title-hidden') === 'true') {
            node.removeAttribute('data-clbi-title-hidden');
            node.style.removeProperty('display');
            node.style.removeProperty('visibility');
            node.style.removeProperty('height');
            node.style.removeProperty('min-height');
            node.style.removeProperty('margin');
            node.style.removeProperty('padding');
            node.style.removeProperty('overflow');
        }
    });
}

function applyDefaultPageTitleVisibility() {
    var hideTitle = true;
    var isSystemAssetPage = false;

    if (window.CLBI_PAGE_SHELL && typeof window.CLBI_PAGE_SHELL.isSystemAssetPage === 'function') {
        isSystemAssetPage = window.CLBI_PAGE_SHELL.isSystemAssetPage();
    }

    if (isSystemAssetPage) {
        hideTitle = true;
    } else if (window.CLBI_PAGE_SHELL && typeof window.CLBI_PAGE_SHELL.isBackendOrSystemPage === 'function') {
        hideTitle = !window.CLBI_PAGE_SHELL.isBackendOrSystemPage();
    }

    $('body')
        .toggleClass('page-title-hidden', hideTitle)
        .toggleClass('page-title-visible', !hideTitle)
        .toggleClass('clbi-system-doc-page', isSystemAssetPage);

    $('.content-tools').css('display', 'none');

    if (isSystemAssetPage && window.CLBI_PAGE_SHELL && typeof window.CLBI_PAGE_SHELL.renderSystemDocIndicator === 'function') {
        window.CLBI_PAGE_SHELL.renderSystemDocIndicator();
    } else if (!isSystemAssetPage && window.CLBI_PAGE_SHELL && typeof window.CLBI_PAGE_SHELL.removeSystemDocIndicator === 'function') {
        window.CLBI_PAGE_SHELL.removeSystemDocIndicator();
    }

    if (hideTitle) {
        $('.liberty-content-header').css('display', 'none');
        $('.mw-page-title-main, .mw-page-title-namespace, .mw-page-title-separator').addClass('clbi-hide');
        $('#firstHeading, .firstHeading, .mw-first-heading, .page-heading, .page-header').css('display', 'none');
        setNativePageTitleHiddenHard(true);
    } else {
        $('.liberty-content-header').css('display', '');
        $('.mw-page-title-main, .mw-page-title-namespace, .mw-page-title-separator').removeClass('clbi-hide');
        $('#firstHeading, .firstHeading, .mw-first-heading, .page-heading, .page-header').css('display', '');
        setNativePageTitleHiddenHard(false);
    }
}

function applyMainPageStyle() {
    var specialPage = mw.config.get('wgCanonicalSpecialPageName');
    if (specialPage === 'Preferences') return;

    var pageName = normalizePageName(mw.config.get('wgPageName'));
    var namespaceNumber = mw.config.get('wgNamespaceNumber');
    var isMainPage = (pageName === '대문');
    var isUserProfilePage = (namespaceNumber === 2);
    var isScreenDoc = ($('.screen-header').length > 0);
    var hideTools = (isMainPage || isUserProfilePage || !canShowContentTools());

    $('body').toggleClass('user-profile-page', isUserProfilePage);
    $('body').toggleClass('clbi-main-page', isMainPage);

    // 모든 문서에서 분류 바를 본문 컨테이너 아래로 이동
    moveCatlinksToBottom();

    if (isMainPage) {
        $('.liberty-content-header').css('display', 'none');
        $('.mw-page-title-main').addClass('clbi-hide');
        setNativePageTitleHiddenHard(true);
        $('.catlinks').css('display', 'none');
        $('.liberty-content-main').css('border-radius', '0');

        // 새 대문은 .main-portal 본문 구조가 로고/히어로를 담당한다.
        // Common.js의 구식 바깥 로고/CRT 재배치 루틴은 사용하지 않는다.
        removeLegacyMainPageHero();
        $('#clbi-tools-box').remove();

        $('.content-tools').css('display', 'none');

        initCategoryNavIfAvailable(document);

    } else if (isUserProfilePage) {
        $('.liberty-content-header').css('display', 'none');
        $('.mw-page-title-main, .mw-page-title-namespace, .mw-page-title-separator').addClass('clbi-hide');
        $('.catlinks').css('display', 'none');
        $('.liberty-content-main').css('border-radius', '0');

        $('#clbi-main-logo').remove();
        $('#clbi-main-crt-hero-wrap').remove();
        $('#clbi-main-crt-hero').remove();
        $('#clbi-tools-box').remove();

        $('.content-tools').css('display', 'none');

    } else if (isScreenDoc) {
        $('.liberty-content-header').css('display', 'none');
        $('.mw-page-title-main').addClass('clbi-hide');
        $('.catlinks').css('display', '');
        $('.liberty-content-main').css('border-radius', '0');

        $('#clbi-main-logo').remove();
        $('#clbi-main-crt-hero-wrap').remove();

        if ($('#clbi-tools-box').length === 0 && canShowContentTools()) {
            var $toolsBox = $('<div id="clbi-tools-box" class="clbi-left-box"></div>');
            var $toolsTitle = $('<div class="clbi-left-title"><span class="clbi-icon" style="--icon:var(--ic-ui-003)"></span> 관리</div>');
            var $toolsContent = $('<div class="clbi-left-content"></div>');

            $toolsContent.append($('.content-tools .btn-group').clone(true));
            $toolsBox.append($toolsTitle).append($toolsContent);
            $('#clbi-left-sidebar').append($toolsBox);
        }

        $('.content-tools').css('display', 'none');

    } else {
        $('.liberty-content-header').css('display', '');
        $('.mw-page-title-main, .mw-page-title-namespace, .mw-page-title-separator').removeClass('clbi-hide');
        $('.catlinks').css('display', '');
        $('.liberty-content-main').css('border-radius', '0');

        $('#clbi-main-logo').remove();
        $('#clbi-main-crt-hero-wrap').remove();
        $('#clbi-tools-box').remove();
    }

    if (!isUserProfilePage) {
        $('.profile-card').remove();
        $('.user-profile-portal').removeClass('user-profile-portal');
    }

    $('.content-tools').css('display', 'none');

    applyDefaultPageTitleVisibility();
    updateSidebar();
}

// 본문 기본 목차 제거
function removeNativeTocFromContent() {
    $('.liberty-content-main #toc, .liberty-content-main .toc').remove();
}

// 왼쪽 목차: MediaWiki 문단 ID 가져오기
function getHeadingId(heading) {
    if (heading.id) {
        return heading.id;
    }

    var headline = heading.querySelector('.mw-headline[id]');
    if (headline && headline.id) {
        return headline.id;
    }

    return '';
}

// 왼쪽 목차: MediaWiki 문단 제목 텍스트 가져오기
function getHeadingText(heading) {
    var headline = heading.querySelector('.mw-headline');
    var source = headline || heading;
    var clone = source.cloneNode(true);

    $(clone).find('.mw-editsection, .mw-editsection-bracket, .mw-editsection-divider').remove();

    return (clone.textContent || '')
        .replace(/\s+/g, ' ')
        .trim();
}

// 왼쪽 목차: 긴 제목에 자동 스크롤 적용
function initTocTitleScroll(root) {
    var $items = root
        ? $(root).find('.toc-scroll-text')
        : $('#side-toc-box .toc-scroll-text');

    $items.each(function () {
        var $text = $(this);
        var $wrap = $text.closest('.toc-scroll-wrap');

        if (!$wrap.length) return;

        var wrapW = Math.floor($wrap.width());
        var textW = Math.ceil(this.scrollWidth);

        // 왼쪽 목차: 레이아웃 계산이 끝나지 않았으면 이번 실행에서는 건드리지 않는다.
        if (!wrapW || !textW) return;

        if (textW <= wrapW + 12) {
            // 왼쪽 목차: 칸을 넘지 않는 제목은 전체 텍스트를 그대로 보여준다.
            $wrap.removeClass('is-scrolling');

            if ($text.data('toc-scroll-enabled')) {
                $text.css({
                    animation: '',
                    'animation-delay': '',
                    '--scroll-dist': ''
                });
                $text.removeData('toc-scroll-enabled');
                $text.removeData('toc-scroll-key');
            }

            return;
        }

        var scrollDist = '-' + (textW - wrapW + 10) + 'px';
        var duration = Math.max(7, textW / 38) * 1.25;
        var scrollKey = scrollDist + '|' + duration;

        // 왼쪽 목차: 긴 제목에는 오른쪽 페이드와 스크롤을 적용한다.
        $wrap.addClass('is-scrolling');

        // 왼쪽 목차: 같은 값으로 이미 적용된 애니메이션은 다시 초기화하지 않는다.
        if ($text.data('toc-scroll-key') === scrollKey) {
            return;
        }

        $text.data('toc-scroll-enabled', true);
        $text.data('toc-scroll-key', scrollKey);

        $text.css({
            // 왼쪽 목차: 페이지 진입 직후에는 잠시 읽을 시간을 준 뒤 흐르게 한다.
            animation: 'toc-scroll-blink-reset ' + duration + 's linear infinite',
            'animation-delay': '1s',
            '--scroll-dist': scrollDist
        });
    });
}

// 목차를 왼쪽 사이드바에 새로 생성
function moveTocToLeftSidebar() {
    // 왼쪽 목차: MediaWiki가 만든 원래 목차는 본문에서 제거한다.
    removeNativeTocFromContent();

    var leftSidebar = document.getElementById('clbi-left-sidebar');
    if (!leftSidebar) return;

    var content =
        document.querySelector('.liberty-content-main .mw-parser-output') ||
        document.querySelector('.liberty-content-main');

    if (!content) return;

    var headings = Array.prototype.slice.call(
        content.querySelectorAll('h2, h3')
    ).filter(function (heading) {
        if (heading.closest('#toc, .toc, #side-toc-box')) return false;

        var id = getHeadingId(heading);
        var text = getHeadingText(heading);

        if (!id || !text) return false;

        return true;
    });

    var tocKey = headings.map(function (heading) {
        return getHeadingId(heading) + '|' + getHeadingText(heading);
    }).join('||');

    var existingBox = document.getElementById('side-toc-box');

    // 왼쪽 목차: 같은 문서에서 같은 목차를 이미 만들었다면 다시 지우고 만들지 않는다.
    if (existingBox && existingBox.getAttribute('data-toc-key') === tocKey) {
        initTocTitleScroll(existingBox);
        return;
    }

    if (existingBox) {
        existingBox.remove();
    }

    if (!headings.length) return;

    var tocBox = document.createElement('div');
    tocBox.className = 'clbi-left-box';
    tocBox.id = 'side-toc-box';
    tocBox.setAttribute('data-toc-key', tocKey);

    var title = document.createElement('div');
    title.className = 'clbi-left-title';

    // 왼쪽 목차: 박스 제목은 Lang.js의 현재 UI 언어를 따른다.
    var currentLang = getCurrentLang();
    var t = (window.LANG && window.LANG[currentLang]) ? window.LANG[currentLang] : window.LANG.ko;
    var tocTitleText = (t && t.toc) ? t.toc : '목차';

    title.innerHTML =
        '<span class="sidebar-title-svg" aria-hidden="true">' + CLBI_SVG_LIST + '</span> ' + tocTitleText;

    var body = document.createElement('div');
    body.className = 'clbi-left-content toc-sidebar-content';

    var list = document.createElement('ul');
    list.className = 'generated-toc';

    headings.forEach(function (heading) {
        var id = getHeadingId(heading);
        var text = getHeadingText(heading);
        var level = heading.tagName.toLowerCase() === 'h3' ? 3 : 2;

        var item = document.createElement('li');
        item.className = 'toc-level-' + level;

        var link = document.createElement('a');
        link.setAttribute('href', '#' + id);

        // 왼쪽 목차: 긴 제목 스크롤을 위해 텍스트를 별도 span으로 감싼다.
        var textWrap = document.createElement('span');
        textWrap.className = 'toc-scroll-wrap';

        var textSpan = document.createElement('span');
        textSpan.className = 'toc-scroll-text';
        textSpan.textContent = text;

        textWrap.appendChild(textSpan);
        link.appendChild(textWrap);

        item.appendChild(link);
        list.appendChild(item);
    });

    body.appendChild(list);
    tocBox.appendChild(title);
    tocBox.appendChild(body);
    leftSidebar.appendChild(tocBox);

    // 왼쪽 목차: DOM 배치가 끝난 뒤 긴 제목 스크롤 여부를 계산한다.
    requestAnimationFrame(function () {
        initTocTitleScroll(tocBox);

        setTimeout(function () {
            initTocTitleScroll(tocBox);
        }, 120);
    });
}


// 우측 광고판: 이미지/번역 캡션 목록
var RIGHT_BILLBOARD_ITEMS = [
    {
        file: 'Side-visual-001.png',
        alt: 'PROOF TO THE WORLD / YOU ONCE PART OF IT',
        duration: 3000,
        caption: [
            '"당신이 한때 이 세계의',
            '',
            '일부였다는 것을 증명하십시오"'
        ]
    },
    {
        file: 'Side-visual-002.png',
        alt: 'APPLY NOW',
        duration: 1000,
        caption: [
            '"지금 지원하세요!"'
        ]
    },
    {
        file: 'Side-visual-003.png',
        alt: 'APPLY NOW',
        duration: 1000,
        caption: [
            '"지금 지원하세요!"'
        ]
    },
    {
        file: 'Side-visual-002.png',
        alt: 'APPLY NOW',
        duration: 1000,
        caption: [
            '"지금 지원하세요!"'
        ]
    }
];

function getRightBillboardItem(index) {
    var items = RIGHT_BILLBOARD_ITEMS;

    if (!items || !items.length) {
        return {
            file: 'Side-visual-001.png',
            alt: '',
            caption: []
        };
    }

    var normalized = index % items.length;
    if (normalized < 0) normalized += items.length;

    return items[normalized];
}

function getRightBillboardImageUrl(fileName) {
    return '/index.php?title=특수:Redirect/file/' + encodeURIComponent(fileName || 'Side-visual-001.png');
}

function getRightBillboardCaptionHtml(item) {
    var lines = item && item.caption ? item.caption : [];
    var html = '';

    function escapeCaptionText(value) {
        return String(value == null ? '' : value)
            .replace(/&/g, '&amp;')
            .replace(/</g, '&lt;')
            .replace(/>/g, '&gt;')
            .replace(/\"/g, '&quot;')
            .replace(/'/g, '&#039;');
    }

    lines.forEach(function(line) {
        var text = String(line == null ? '' : line);
        var isGap = !text.trim();
        var className = 'right-billboard-caption-line' + (isGap ? ' is-gap' : '');
        html += '<span class="' + className + '">' + (isGap ? '&nbsp;' : escapeCaptionText(text)) + '</span>';
    });

    return html;
}

function setRightBillboardItem(index) {
    var box = document.querySelector('.right-billboard-box');
    if (!box) return;

    var item = getRightBillboardItem(index);
    var src = getRightBillboardImageUrl(item.file);
    var images = box.querySelectorAll('.right-billboard-image');
    var caption = box.querySelector('#right-billboard-caption');
    var emptySub = box.querySelector('.right-billboard-empty-sub');

    box.setAttribute('data-billboard-index', String(index));
    box.classList.remove('is-empty');

    Array.prototype.forEach.call(images, function(img) {
        img.style.display = '';
        img.setAttribute('src', src);
        img.setAttribute('alt', img.classList.contains('right-billboard-image-base') ? (item.alt || '') : '');
    });

    if (caption) {
        caption.innerHTML = getRightBillboardCaptionHtml(item);
    }

    if (emptySub) {
        emptySub.textContent = item.file || 'Side-visual-001.png';
    }
}

function getRightBillboardItemDuration(item) {
    var duration = item && item.duration ? parseInt(item.duration, 10) : 3000;

    if (Number.isNaN(duration) || duration < 500) {
        duration = 3000;
    }

    return duration;
}

function initRightBillboardCarousel() {
    var box = document.querySelector('.right-billboard-box');
    if (!box || box.getAttribute('data-billboard-ready') === '1') return;

    box.setAttribute('data-billboard-ready', '1');
    box.setAttribute('data-billboard-index', '0');

    setRightBillboardItem(0);

    if (!RIGHT_BILLBOARD_ITEMS || RIGHT_BILLBOARD_ITEMS.length <= 1) return;

    function scheduleNext() {
        var current = parseInt(box.getAttribute('data-billboard-index') || '0', 10);
        if (Number.isNaN(current)) current = 0;

        var currentItem = getRightBillboardItem(current);
        var delay = getRightBillboardItemDuration(currentItem);

        window.setTimeout(function() {
            if (!document.body.contains(box)) return;

            if (!document.hidden) {
                setRightBillboardItem(current + 1);
            }

            scheduleNext();
        }, delay);
    }

    scheduleNext();
}


function escapeRightBillboardAttr(value) {
    return String(value == null ? '' : value)
        .replace(/&/g, '&amp;')
        .replace(/</g, '&lt;')
        .replace(/>/g, '&gt;')
        .replace(/"/g, '&quot;')
        .replace(/'/g, '&#039;');
}

function buildRightBillboardBox() {
    var billboardInitial = getRightBillboardItem(0);
    var billboardSrc = getRightBillboardImageUrl(billboardInitial.file);

    return '' +
        '<div class="clbi-right-box right-billboard-box" data-billboard-index="0">' +
            '<div class="clbi-right-title right-billboard-title">' +
                '<span class="right-billboard-title-text"><span class="right-billboard-title-main">Ad</span><span class="right-billboard-title-note">(not really)</span></span>' +
            '</div>' +
            '<div class="right-billboard-body">' +
                '<div class="right-billboard-recess">' +
                    '<div class="right-billboard-screen">' +
                        '<img id="right-billboard-image" class="right-billboard-image right-billboard-image-base" src="' + escapeRightBillboardAttr(billboardSrc) + '" alt="' + escapeRightBillboardAttr(billboardInitial.alt || '') + '" onload="var b=this.closest(\'.right-billboard-box\'); if(b){b.classList.remove(\'is-empty\');}" onerror="this.onerror=null;this.style.display=\'none\';var b=this.closest(\'.right-billboard-box\'); if(b){b.classList.add(\'is-empty\');}">' +
                        '<img class="right-billboard-image right-billboard-image-bloom" src="' + escapeRightBillboardAttr(billboardSrc) + '" alt="" aria-hidden="true" onerror="this.onerror=null;this.style.display=\'none\';">' +
                        '<img class="right-billboard-image right-billboard-slice right-billboard-slice-a" src="' + escapeRightBillboardAttr(billboardSrc) + '" alt="" aria-hidden="true" onerror="this.onerror=null;this.style.display=\'none\';">' +
                        '<img class="right-billboard-image right-billboard-slice right-billboard-slice-b" src="' + escapeRightBillboardAttr(billboardSrc) + '" alt="" aria-hidden="true" onerror="this.onerror=null;this.style.display=\'none\';">' +
                        '<img class="right-billboard-image right-billboard-slice right-billboard-slice-c" src="' + escapeRightBillboardAttr(billboardSrc) + '" alt="" aria-hidden="true" onerror="this.onerror=null;this.style.display=\'none\';">' +
                        '<div class="right-billboard-glitch" aria-hidden="true"></div>' +
                        '<div class="right-billboard-tear" aria-hidden="true"></div>' +
                        '<div class="right-billboard-empty" aria-hidden="true">' +
                            '<span class="right-billboard-empty-main">SIGNAL EMPTY</span>' +
                            '<span class="right-billboard-empty-sub">' + escapeRightBillboardAttr(billboardInitial.file || 'Side-visual-001.png') + '</span>' +
                        '</div>' +
                    '</div>' +
                '</div>' +
                '<div id="right-billboard-caption" class="right-billboard-caption" aria-hidden="true">' + getRightBillboardCaptionHtml(billboardInitial) + '</div>' +
            '</div>' +
        '</div>';
}

function buildSiteInformationBox() {
    return '' +
        '<div class="clbi-right-box site-info-sidebar">' +
            '<div class="clbi-right-title site-info-title">' +
                '<span>SITE INFORMATION</span>' +
                '<span class="site-info-title-meta">LINKS</span>' +
            '</div>' +
            '<div class="clbi-right-content site-info-content">' +
                '<div class="policy-list">' +
                    '<div class="policy-row"><a href="/index.php/개인정보처리방침">개인정보처리방침</a><span class="policy-mark" aria-hidden="true">›</span></div>' +
                    '<div class="policy-row"><a href="/index.php/면책_조항">면책 조항</a><span class="policy-mark" aria-hidden="true">›</span></div>' +
                    '<div class="policy-row"><a href="/index.php/라이선스">라이선스</a><span class="policy-mark" aria-hidden="true">›</span></div>' +
                    '<div class="policy-row"><a href="/index.php/크레딧">크레딧</a><span class="policy-mark" aria-hidden="true">›</span></div>' +
                '</div>' +
                '<div class="social-strip">' +
                    '<span class="social-icon"><a href="https://discord.gg/ctaeJ9d3Q5" target="_blank" rel="noopener noreferrer">DC</a></span>' +
                    '<span class="social-icon"><a href="https://www.youtube.com/@nxdsxn" target="_blank" rel="noopener noreferrer">YT</a></span>' +
                    '<span class="social-icon"><a href="https://x.com/nxd_sxn" target="_blank" rel="noopener noreferrer">X</a></span>' +
                    '<span class="social-icon"><a href="/index.php/프로젝트:소개">WIP:</a></span>' +
                '</div>' +
            '</div>' +
        '</div>';
}


// 초기화 함수
function initSidebars() {
    var header = $('.liberty-content-header');
    var content = $('.liberty-content');

    if (header.length && content.length) {
        header.prependTo(content);
    }

    if ($('#clbi-right-sidebar').length === 0) {
        var username = mw.config.get('wgUserName');
        var isLoggedIn = username !== null;
        var avatarSrc = isLoggedIn
            ? '/index.php?title=특수:Redirect/file/Pfp-' + username + '.png'
            : '/index.php?title=특수:Redirect/file/Pfp-default.png';

        var userBox;

        if (isLoggedIn) {
            userBox =
                '<div class="clbi-right-box profile-card-box">' +
                    '<div id="clbi-user-avatar-wrap" class="profile-identity-panel">' +
                        '<div class="profile-avatar-stage">' +
                            '<img id="clbi-user-avatar" src="' + avatarSrc + '" onerror="this.onerror=null;this.src=\'/index.php?title=특수:Redirect/file/Pfp-default.png\';">' +
                        '</div>' +
                        '<div id="clbi-user-name-row" class="profile-name-row">' +
                            '<a href="/index.php/사용자:' + username + '" id="clbi-user-name">' + username + '</a>' +
                        '</div>' +
                    '</div>' +
                    '<div class="clbi-right-content profile-action-box">' +
                        '<div class="profile-quick-actions" aria-label="프로필 빠른 메뉴">' +
                            '<button type="button" class="profile-quick-btn" id="profile-quick-inventory" aria-label="인벤토리"><span class="profile-quick-icon" aria-hidden="true">' + CLBI_SVG_PACKAGE + '</span><span class="profile-quick-tip" aria-hidden="true">인벤토리</span></button>' +
                            '<button type="button" class="profile-quick-btn" id="profile-quick-achievements" aria-label="업적"><span class="profile-quick-icon" aria-hidden="true">' + CLBI_SVG_TROPHY + '</span><span class="profile-quick-tip" aria-hidden="true">업적</span></button>' +
                            '<button type="button" class="profile-quick-btn" id="profile-quick-notifications" aria-label="알림"><span id="profile-quick-notification-icon" class="profile-quick-icon" aria-hidden="true">' + CLBI_SVG_BELL + '</span><span class="profile-quick-tip" aria-hidden="true">알림</span></button>' +
                        '</div>' +
                        '<a href="/index.php/특수:기여/' + username + '" class="clbi-user-btn" id="clbi-btn-contribution"><span class="profile-action-icon" aria-hidden="true">' + CLBI_SVG_SCAN_TEXT + '</span><span class="profile-action-label">기여</span><i class="hn hn-angle-right-solid profile-action-arrow" aria-hidden="true"></i></a>' +
                        '<a href="/index.php/특수:주시문서목록" class="clbi-user-btn" id="clbi-btn-watchlist"><span class="profile-action-icon" aria-hidden="true">' + CLBI_SVG_SCAN_EYE + '</span><span class="profile-action-label">주시문서 목록</span><i class="hn hn-angle-right-solid profile-action-arrow" aria-hidden="true"></i></a>' +
                        '<a href="/index.php/특수:설정" class="clbi-user-btn" id="clbi-btn-preferences"><span class="profile-action-icon" aria-hidden="true">' + CLBI_SVG_SETTINGS + '</span><span class="profile-action-label">설정</span><i class="hn hn-angle-right-solid profile-action-arrow" aria-hidden="true"></i></a>' +
                        '<a href="/index.php?title=특수:로그아웃&returnto=대문" class="clbi-user-btn clbi-user-btn-logout" id="clbi-btn-logout"><span class="profile-action-icon" aria-hidden="true">' + CLBI_SVG_POWER + '</span><span class="profile-action-label">로그아웃</span><i class="hn hn-angle-right-solid profile-action-arrow" aria-hidden="true"></i></a>' +
                    '</div>' +
                '</div>';
        } else {
            userBox =
                '<div class="clbi-right-box profile-card-box">' +
                    '<div id="clbi-user-avatar-wrap" class="profile-identity-panel">' +
                        '<div class="profile-avatar-stage">' +
                            '<img id="clbi-user-avatar" src="/index.php?title=특수:Redirect/file/Pfp-default.png">' +
                        '</div>' +
                        '<div id="clbi-user-name-row" class="profile-name-row profile-name-row-guest">' +
                            '<span id="clbi-user-name">Guest</span>' +
                        '</div>' +
                    '</div>' +
                    '<div class="clbi-right-content profile-action-box">' +
                        '<a href="/index.php?title=특수:로그인&returnto=대문" class="clbi-user-btn" id="clbi-btn-login"><span class="profile-action-icon" aria-hidden="true">' + CLBI_SVG_POWER + '</span><span class="profile-action-label">로그인</span><i class="hn hn-angle-right-solid profile-action-arrow" aria-hidden="true"></i></a>' +
                    '</div>' +
                '</div>';
        }
        var rightVisualBox = '';
        var siteInformationBox = '';

        try {
            rightVisualBox = buildRightBillboardBox();
        } catch (err) {
            console.error('Right billboard build failed:', err);
            rightVisualBox = '';
        }

        try {
            siteInformationBox = buildSiteInformationBox();
        } catch (err) {
            console.error('Site information build failed:', err);
            siteInformationBox = '';
        }


        var sidebar = userBox + rightVisualBox + siteInformationBox;

        $('.content-wrapper').append('<div id="clbi-right-sidebar">' + sidebar + '</div>');
    }


    if ($('#clbi-left-sidebar').length === 0) {
var leftSidebar =
    '<div id="clbi-left-sidebar">' +
        '<div class="clbi-left-box clbi-left-lang-box">' +
            '<div class="clbi-left-title">' +
                '<span class="sidebar-title-svg clbi-left-language-icon" aria-hidden="true">' + CLBI_SVG_LANGUAGES + '</span> ' +
                '<span id="clbi-title-left-language">언어</span>' +
            '</div>' +
            '<div class="clbi-left-content sidebar-lang-box">' +
                '<div id="clbi-sidebar-lang-selector" class="sidebar-lang-selector sidebar-lang-dial" tabindex="0" role="group" aria-label="언어 선택">' +
                    '<div id="clbi-sidebar-lang-dial-stage" class="sidebar-lang-dial-stage">' +
                        '<div id="clbi-sidebar-lang-fan" class="sidebar-lang-fan" aria-hidden="true"></div>' +
                        '<div id="clbi-sidebar-lang-selected-panel" class="sidebar-lang-status-panel sidebar-lang-status-left" aria-hidden="true">' +
                            '<span id="clbi-sidebar-lang-selected-value" class="sidebar-lang-status-value">한국어</span>' +
                        '</div>' +
                        '<div id="clbi-sidebar-lang-availability-panel" class="sidebar-lang-status-panel sidebar-lang-status-right is-current" aria-hidden="true">' +
                            '<span id="clbi-sidebar-lang-availability-value" class="sidebar-lang-status-value">CURRENT</span>' +
                        '</div>' +
                        '<button type="button" id="clbi-sidebar-lang-apply" class="sidebar-lang-apply" aria-label="언어 적용">' +
                            '<span class="sidebar-lang-apply-mark" aria-hidden="true">✓</span>' +
                        '</button>' +
                    '</div>' +
                '</div>' +
            '</div>' +
        '</div>' +
        '<div class="clbi-left-box clbi-left-news-box">' +
            '<div class="clbi-left-title">' +
                '<span class="news-title-icon sidebar-title-svg" aria-hidden="true">' + CLBI_SVG_NEWSPAPER + '</span> ' +
                '<span id="clbi-title-left-news">뉴스</span>' +
            '</div>' +
            '<div class="clbi-left-content clbi-news-box">' +

                '<div class="news-feed-title" id="clbi-left-news-changelog-title">CHANGELOG</div>' +
                '<div class="news-left-changelog-feed">' +
                    '<a href="/index.php/체인지로그" class="news-post-item">' +
                        '<div class="news-post-title-wrap">' +
                            '<span class="news-post-title" id="clbi-left-news-changelog-main">체인지로그</span>' +
                            '<i class="hn hn-angle-right-solid news-post-arrow" aria-hidden="true"></i>' +
                        '</div>' +
                        '<span class="news-post-tag">POST</span>' +
                    '</a>' +
                '</div>' +

                '<div class="news-divider"></div>' +

                '<div class="news-feed-title" id="clbi-left-news-recent-title">RECENT CHANGES</div>' +
                '<div class="news-left-recent-feed" id="clbi-left-recent-list">불러오는 중...</div>' +

            '</div>' +
        '</div>' +
    '</div>';

        $('.content-wrapper').prepend(leftSidebar);

        renderSidebarLanguageBox();
        loadRecentChangesList('#clbi-left-recent-list', 10);
        scheduleAdaptiveLeftRecentItems();
        scheduleClbiContentBottomGap();
        updateLeftSidebarNationsImage();
    }

    try {
        initRightBillboardCarousel();
    } catch (err) {
        console.error('Right billboard carousel failed:', err);
    }

    if (typeof window.normalizeClbiShellDomOrder === 'function') window.normalizeClbiShellDomOrder();
    applyMainPageStyle();
    initCategoryNavIfAvailable(document);

    if (window.ProgressSystemWebUi && typeof window.ProgressSystemWebUi.boot === 'function') {
        window.ProgressSystemWebUi.boot('initSidebars');
    }

    $('#side-toc-box').remove();

    mw.loader.using(['mediawiki.api']).then(function() {
        setTimeout(function() {
            initNotifications();
            initProfile();
            moveTocToLeftSidebar();
        }, 300);

        setTimeout(moveTocToLeftSidebar, 800);
        setTimeout(moveTocToLeftSidebar, 1500);
    });
}

$(function() {
    loadLangScript(function() {
        setTimeout(function() {
            initSidebars();
        }, 100);
    });
});

$(document).on('click.profileQuickPlaceholder', '#profile-quick-inventory, #profile-quick-achievements', function(e) {
    e.preventDefault();
    e.stopPropagation();
});

// SPA 네비게이션
function shouldSkip(url) {
    return url.match(/action=edit|action=submit|action=history|action=delete|action=protect|action=purge|특수:로그인|특수:로그아웃|Special:UserLogin|Special:UserLogout|특수:사용자정보|특수:비밀번호바꾸기|uselang=/);
}

$(function() {
    if (window._spaInitialized) return;
    window._spaInitialized = true;

    function isInternal(url) {
        var a = document.createElement('a');
        a.href = url;
        return a.hostname === window.location.hostname;
    }

    function loadPage(url) {
        invalidateProfileRender();

        fetch(url)
            .then(function(res) {
                return res.text();
            })
            .then(function(html) {
                var parser = new DOMParser();
                var doc = parser.parseFromString(html, 'text/html');

                var scripts = doc.querySelectorAll('script');
                for (var i = 0; i < scripts.length; i++) {
                    var src = scripts[i].textContent;

                    if (src.indexOf('wgNamespaceNumber') !== -1) {
                        var match = src.match(/"wgNamespaceNumber":(-?\d+)/);
                        if (match) mw.config.set('wgNamespaceNumber', parseInt(match[1], 10));

                        var matchTitle = src.match(/"wgTitle":"([^"]+)"/);
                        if (matchTitle) mw.config.set('wgTitle', matchTitle[1]);

                        var matchPage = src.match(/"wgPageName":"([^"]+)"/);
                        if (matchPage) mw.config.set('wgPageName', matchPage[1]);

                        var matchArticle = src.match(/"wgArticleId":(\d+)/);
                        if (matchArticle) {
                            mw.config.set('wgArticleId', parseInt(matchArticle[1], 10));
                        } else {
                            mw.config.set('wgArticleId', 0);
                        }

                        var matchIsMainPage = src.match(/"wgIsMainPage":(true|false)/);
                        if (matchIsMainPage) {
                            mw.config.set('wgIsMainPage', matchIsMainPage[1] === 'true');
                        } else {
                            mw.config.set('wgIsMainPage', false);
                        }

                        var matchSpecial = src.match(/"wgCanonicalSpecialPageName":"([^"]+)"/);
                        if (matchSpecial) {
                            mw.config.set('wgCanonicalSpecialPageName', matchSpecial[1]);
                        } else {
                            mw.config.set('wgCanonicalSpecialPageName', false);
                        }
                        break;
                    }
                }

                var newContent = doc.querySelector('.liberty-content-main');
                var newTitle = doc.querySelector('.mw-page-title-main');
                var newHead = doc.querySelector('title');
                var newHeader = doc.querySelector('.liberty-content-header');

                if (newContent) {
                    $('#side-toc-box').remove();
                    $('.profile-card').remove();
                    $('.user-profile-portal').removeClass('user-profile-portal');
                    $('.liberty-content-main').html(newContent.innerHTML);
                    $('.profile-card').remove();
                    $('body').removeClass('page-loading');
                }

                if (newTitle) {
                    $('.mw-page-title-main').html(newTitle.innerHTML);
                }

                if (newHead) {
                    document.title = newHead.textContent;
                }

                if (newHeader) {
                    $('.liberty-content-header').html(newHeader.innerHTML);
                }

                if (typeof window.normalizeClbiShellDomOrder === 'function') window.normalizeClbiShellDomOrder();
                window.scrollTo(0, 0);
                mw.hook('wikipage.content').fire($('.liberty-content-main'));
                applyMainPageStyle();
                initCategoryNavIfAvailable(document);

                if (window.ProgressSystemWebUi && typeof window.ProgressSystemWebUi.handleSpaPageView === 'function') {
                    window.ProgressSystemWebUi.handleSpaPageView();
                } else if (window.ProgressSystemWebUi && typeof window.ProgressSystemWebUi.boot === 'function') {
                    window.ProgressSystemWebUi.boot('spa');
                }

                $('#side-toc-box').remove();
                setTimeout(moveTocToLeftSidebar, 100);
                setTimeout(moveTocToLeftSidebar, 500);
                setTimeout(moveTocToLeftSidebar, 1200);

                mw.loader.using(['mediawiki.api']).then(function() {
                    initProfile();
                    moveTocToLeftSidebar();
                });
            });
    }

// 목차 링크는 전용 처리
$(document).on('click', '#side-toc-box a, #toc a, .toc a', function(e) {
    var href = $(this).attr('href');
    if (!href || href.charAt(0) !== '#') return;

    var rawId = href.slice(1);
    if (!rawId) return;

    var decodedId = rawId;

    try {
        decodedId = decodeURIComponent(rawId);
    } catch (err) {
        decodedId = rawId;
    }

    var target = document.getElementById(decodedId);

    if (!target && window.CSS && CSS.escape) {
        target = document.querySelector('#' + CSS.escape(decodedId));
    }

    if (!target) return;

    e.preventDefault();
    e.stopPropagation();

    var scrollTarget = target.closest('h2, h3') || target;

    scrollTarget.scrollIntoView({
        behavior: 'auto',
        block: 'start'
    });

    history.replaceState(null, '', '#' + rawId);
});

    $(document).on('click', 'a', function(e) {
        // 휠 클릭, 새 탭 열기, 보조키 이동은 브라우저 기본 동작을 유지한다.
        if (e.which && e.which !== 1) return;
        if (e.button && e.button !== 0) return;
        if (e.ctrlKey || e.metaKey || e.shiftKey || e.altKey) return;

        var href = $(this).attr('href');
        if (!href) return;

        // 목차 링크는 별도 핸들러에서 처리
        if ($(this).closest('#side-toc-box, #toc, .toc').length) return;

        // 단순 해시 링크는 SPA 가로채기 제외
        if (href.startsWith('#')) return;

        var link = document.createElement('a');
        link.href = href;

        var samePath = decodeURIComponent(link.pathname) === decodeURIComponent(window.location.pathname);
        var sameSearch = (link.search || '') === (window.location.search || '');

        if (link.hash && samePath && sameSearch) return;

        var currentBase = window.location.href.split('#')[0];
        var targetBase = link.href.split('#')[0];

        if (link.hash && currentBase === targetBase) return;

        if (!isInternal(href)) return;
        if (shouldSkip(href)) return;

        e.preventDefault();
        playStaticSound();
        $('body').addClass('page-loading');
        history.pushState(null, '', href);
        loadPage(href);
    });

    window.addEventListener('popstate', function() {
        loadPage(window.location.href);
    });
});

// 시간 계산 함수
function timeAgo(timestamp) {
    var now = new Date();
    var date = new Date(timestamp);
    var diff = Math.floor((now - date) / 1000);

    if (diff < 60) return diff + '초 전';
    if (diff < 3600) return Math.floor(diff / 60) + '분 전';
    if (diff < 86400) return Math.floor(diff / 3600) + '시간 전';
    return Math.floor(diff / 86400) + '일 전';
}

// 펼접 토글
// 펼접 토글
function getFoldTexts() {
    var lang = getCurrentLang();
    return (window.LANG && window.LANG[lang])
        ? window.LANG[lang]
        : (window.LANG ? window.LANG.ko : { expand: '펼치기', collapse: '접기' });
}

function refreshOpenAncestors($start) {
    $start.parents('[id^="collapsible"]').each(function () {
        var $parent = $(this);
        if (!$parent.hasClass('folding-open')) return;

        // 이미 fully open 상태면 굳이 다시 잠그지 않음
        if ($parent.data('fold-state') === 'open') {
            return;
        }

        $parent.css('max-height', this.scrollHeight + 'px');
    });
}

function bindInnerResizeUpdates($target) {
    // 이미지 늦게 로드될 때 높이 갱신
    $target.find('img').off('.foldimg').on('load.foldimg', function () {
        if ($target.hasClass('folding-open')) {
            if ($target.data('fold-state') !== 'open') {
                $target.css('max-height', $target[0].scrollHeight + 'px');
            }
            refreshOpenAncestors($target);
        }
    });
}

function openFold($target, $btn) {
    var t = getFoldTexts();

    $target.data('fold-state', 'opening');
    $target.addClass('folding-open');

    // 열린 뒤 자연 확장 가능하게 만들기 위해 먼저 px로 열기
    $target.css('max-height', '0px');
    $target[0].offsetHeight;
    $target.css('max-height', $target[0].scrollHeight + 'px');

    $btn.text(t.collapse);

    bindInnerResizeUpdates($target);

    // 바깥 펼접 즉시 갱신
    refreshOpenAncestors($target);

    // 전환 끝나면 none으로 풀어서 중첩 펼접/동적 내용 증가를 자연스럽게 허용
    $target.off('transitionend.foldopen').on('transitionend.foldopen', function (e) {
        if (e.target !== this) return;
        if (!$target.hasClass('folding-open')) return;

        $target.css('max-height', 'none');
        $target.data('fold-state', 'open');

        refreshOpenAncestors($target);
    });

    // 늦게 렌더되는 콘텐츠 대응
    requestAnimationFrame(function () {
        if ($target.hasClass('folding-open') && $target.data('fold-state') !== 'open') {
            $target.css('max-height', $target[0].scrollHeight + 'px');
            refreshOpenAncestors($target);
        }
    });

    setTimeout(function () {
        if ($target.hasClass('folding-open') && $target.data('fold-state') !== 'open') {
            $target.css('max-height', $target[0].scrollHeight + 'px');
            refreshOpenAncestors($target);
        }
    }, 80);

    setTimeout(function () {
        if ($target.hasClass('folding-open') && $target.data('fold-state') !== 'open') {
            $target.css('max-height', $target[0].scrollHeight + 'px');
            refreshOpenAncestors($target);
        }
    }, 220);
}

function closeFold($target, $btn) {
    var t = getFoldTexts();

    // none 상태에서 닫으면 transition이 안 되므로 실제 높이로 고정
    if ($target.css('max-height') === 'none' || $target.data('fold-state') === 'open') {
        $target.css('max-height', $target[0].scrollHeight + 'px');
    } else {
        $target.css('max-height', $target[0].scrollHeight + 'px');
    }

    $target.data('fold-state', 'closing');
    $target[0].offsetHeight;
    $target.css('max-height', '0px');
    $target.removeClass('folding-open');

    $btn.text(t.expand);

    refreshOpenAncestors($target);

    setTimeout(function () {
        refreshOpenAncestors($target);
        $target.data('fold-state', 'closed');
    }, 250);
}

$(function () {
    $(document)
        .off('click.clbiToggle')
        .on('click.clbiToggle', '.toggleBtn', function () {
            var $btn = $(this);
            var targetId = $btn.data('target');
            var $target = $('#' + targetId);
            if (!$target.length) return;

            var scrollY = window.scrollY;

            if ($target.hasClass('folding-open')) {
                closeFold($target, $btn);
            } else {
                openFold($target, $btn);
            }

            window.scrollTo(0, scrollY);
        });
});

// ========== 프로필 시스템 ==========
function initProfile() {
    $('.profile-card').remove();
    $('.user-profile-portal').removeClass('user-profile-portal');

    var token = ++PROFILE_RENDER_TOKEN;
    var ns = mw.config.get('wgNamespaceNumber');
    var title = mw.config.get('wgTitle');
    var specialPage = mw.config.get('wgCanonicalSpecialPageName');
    var isProfileSettings = specialPage === '사용자정보';

    $('body').toggleClass('user-profile-page', ns === 2);
    $('body').toggleClass('user-profile-settings-page', isProfileSettings);

    if (ns === 2) {
        var profileUser = title.split('/')[0];
        renderProfile(profileUser, token);
    }

    if (isProfileSettings) {
        initUserProfilePage();
    }
}

function renderProfile(username, token) {
    var api = new mw.Api();
    api.get({
        action: 'query',
        list: 'users',
        ususers: username,
        usprop: 'editcount'
    }).then(function(data) {
        if (token !== PROFILE_RENDER_TOKEN) return;
        if (mw.config.get('wgNamespaceNumber') !== 2) return;

        var currentTitle = String(mw.config.get('wgTitle') || '').split('/')[0];
        if (currentTitle !== username) return;

        var user = data.query.users[0];
        var contentEl = document.getElementById('mw-content-text');
        if (!contentEl) return;

        var pageContent = contentEl.querySelector('.mw-parser-output') || contentEl;
        injectProfileCard(username, user, pageContent);
    });
}

function injectProfileCard(username, userData, container) {
    var isOwnPage = mw.config.get('wgUserName') === username;
    var editCount = (userData && userData.editcount) ? userData.editcount : 0;

    function escapeHtml(value) {
        return String(value == null ? '' : value)
            .replace(/&/g, '&amp;')
            .replace(/</g, '&lt;')
            .replace(/>/g, '&gt;')
            .replace(/"/g, '&quot;')
            .replace(/'/g, '&#039;');
    }

    container.classList.add('user-profile-portal');

    var safeUsername = escapeHtml(username);
    var avatarSrc = '/index.php?title=특수:Redirect/file/Pfp-' + encodeURIComponent(username) + '.png&width=220';
    var fallbackSrc = '/index.php?title=특수:Redirect/file/Pfp-default.png&width=220';
    var editBtn = isOwnPage
        ? '<a href="/index.php/특수:사용자정보" class="profile-edit-btn"><span class="profile-edit-label">프로필 수정</span><span class="profile-edit-arrow">›</span></a>'
        : '';

    var progressHtml = isOwnPage
        ? '<div class="profile-page-progress is-syncing" data-profile-progress>' +
            '<div class="profile-section-title">LEVEL RECORD</div>' +
            '<div class="profile-page-progress-body">' +
                '<div class="profile-page-progress-row">' +
                    '<span class="profile-page-level">SYNC</span>' +
                    '<span class="profile-page-total-xp">— XP</span>' +
                '</div>' +
                '<div class="profile-page-xp-bar" aria-hidden="true"><div class="profile-page-xp-fill"></div></div>' +
                '<div class="profile-page-progress-sub">SYNCING</div>' +
                '<div class="profile-page-progress-meta">TODAY — · DISCOVERED —</div>' +
            '</div>' +
        '</div>'
        : '';

    var card = document.createElement('div');
    card.className = 'profile-card profile-page-console';
    card.innerHTML =
        '<div class="profile-card-titlebar">' +
            '<span>USER PROFILE</span>' +
            '<span>OFFICIAL ARCHIVE</span>' +
        '</div>' +
        '<div class="profile-card-body">' +
            '<div class="profile-identity-row">' +
                '<div class="profile-avatar-bay">' +
                    '<img src="' + avatarSrc + '" onerror="this.onerror=null;this.src=\'' + fallbackSrc + '\';" alt="' + safeUsername + '">' +
                '</div>' +
                '<div class="profile-info-panel">' +
                    '<div class="profile-nameplate">' +
                        '<h2 class="profile-username">' + safeUsername + '</h2>' +
                        editBtn +
                    '</div>' +
                    '<div class="profile-name" data-field="name"></div>' +
                    '<div class="profile-role" data-field="role"></div>' +
                    '<div class="profile-discord" data-field="discord"></div>' +
                '</div>' +
            '</div>' +
            '<div class="profile-lower-grid">' +
                '<div class="profile-bio-panel">' +
                    '<div class="profile-section-title">BIOGRAPHY</div>' +
                    '<div class="profile-bio" data-field="bio"></div>' +
                '</div>' +
                '<div class="profile-stats-panel">' +
                    '<div class="profile-section-title">RECORD</div>' +
                    '<div class="profile-stats">' +
                        progressHtml +
                        '<div class="profile-stat-grid">' +
                            '<div class="profile-stat">' +
                                '<span class="clbi-stat-value">' + editCount + '</span>' +
                                '<span class="clbi-stat-label">수정 횟수</span>' +
                            '</div>' +
                            '<div class="profile-stat" data-contrib-pages-stat>' +
                                '<span class="clbi-stat-value" data-contrib-pages-value>SYNC</span>' +
                                '<span class="clbi-stat-label">기여 문서</span>' +
                            '</div>' +
                        '</div>' +
                        '<div class="profile-info-grid">' +
                            '<div class="profile-info-stat">' +
                                '<span class="profile-info-label">TIME</span>' +
                                '<span class="profile-info-value" data-profile-time>UTC --:--</span>' +
                            '</div>' +
                            '<div class="profile-info-stat">' +
                                '<span class="profile-info-label">LANGUAGE</span>' +
                                '<span class="profile-info-value" data-profile-language>—</span>' +
                            '</div>' +
                        '</div>' +
                    '</div>' +
                '</div>' +
            '</div>' +
        '</div>';

    $('.profile-card').remove();
    container.insertBefore(card, container.firstChild);
    loadProfileFields(username, card);
    loadProfileContributionPages(username, card);
    updateProfilePageEnvironment(card, null);

    if (isOwnPage) {
        loadProfileProgressForUserPage(card);
    }
}

function getProfileLanguageLabel() {
    var lang = getCurrentLang();
    return SIDEBAR_LANGUAGE_LABELS[lang] || (lang ? lang.toUpperCase() : '—');
}

function updateProfilePageEnvironment(card, summary) {
    if (!card) return;

    var timezone = summary && summary.timezone ? summary.timezone : 'UTC';
    var timeEl = card.querySelector('[data-profile-time]');
    var langEl = card.querySelector('[data-profile-language]');

    if (timeEl) {
        try {
            timeEl.textContent = timezone + ' ' + new Intl.DateTimeFormat('ko-KR', {
                hour: '2-digit',
                minute: '2-digit',
                hour12: false,
                timeZone: timezone
            }).format(new Date());
        } catch (err) {
            timeEl.textContent = 'UTC ' + new Intl.DateTimeFormat('ko-KR', {
                hour: '2-digit',
                minute: '2-digit',
                hour12: false,
                timeZone: 'UTC'
            }).format(new Date());
        }
    }

    if (langEl) {
        langEl.textContent = getProfileLanguageLabel();
    }
}

function loadProfileContributionPages(username, card) {
    if (!username || !card) return;
    if (!mw.loader || typeof mw.loader.using !== 'function') return;

    var valueEl = card.querySelector('[data-contrib-pages-value]');
    if (valueEl) valueEl.textContent = 'SYNC';

    mw.loader.using(['mediawiki.api']).then(function () {
        var api = new mw.Api();
        var pages = Object.create(null);
        var cont = {};
        var guard = 0;

        function requestNext() {
            guard++;

            var params = Object.assign({
                action: 'query',
                list: 'usercontribs',
                ucuser: username,
                ucnamespace: 0,
                ucprop: 'title',
                uclimit: 'max',
                format: 'json',
                formatversion: 2
            }, cont);

            return api.get(params).then(function (data) {
                var rows = data && data.query && data.query.usercontribs ? data.query.usercontribs : [];

                rows.forEach(function (row) {
                    if (row && row.title) pages[row.title] = true;
                });

                if (data && data.continue && data.continue.uccontinue && guard < 40) {
                    cont = data.continue;
                    return requestNext();
                }

                if (valueEl) valueEl.textContent = Object.keys(pages).length;
            });
        }

        requestNext().fail(function () {
            if (valueEl) valueEl.textContent = '—';
        });
    });
}

function loadProfileProgressForUserPage(card) {
    if (!mw.config.get('wgUserName')) return;
    if (!mw.loader || typeof mw.loader.using !== 'function') return;

    mw.loader.using(['mediawiki.api']).then(function () {
        var api = new mw.Api();
        api.get({
            action: 'progress_summary',
            format: 'json',
            formatversion: 2
        }).then(function (data) {
            var payload = data && data.progress_summary;
            if (!payload || !payload.available || !payload.summary) return;
            updateUserPageProgress(card, payload.summary);
            updateProfilePageEnvironment(card, payload.summary);
        });
    });
}

function updateUserPageProgress(card, summary) {
    var panel = card.querySelector('[data-profile-progress]');
    if (!panel || !summary) return;

    var level = summary.level || 1;
    var totalXp = summary.totalXp || 0;
    var xpIntoLevel = summary.xpIntoLevel || 0;
    var xpForNext = summary.xpForNextLevel || 1;
    var percent = Math.max(0, Math.min(100, summary.progressPercent || 0));
    var isMaxLevel = !!summary.isMaxLevel;
    var dailyXp = summary.dailyXp || 0;
    var discoveries = summary.discoveryCount || 0;

    panel.classList.remove('is-syncing');
    panel.classList.toggle('is-max-level', isMaxLevel);

    var levelEl = panel.querySelector('.profile-page-level');
    var totalEl = panel.querySelector('.profile-page-total-xp');
    var fillEl = panel.querySelector('.profile-page-xp-fill');
    var subEl = panel.querySelector('.profile-page-progress-sub');
    var metaEl = panel.querySelector('.profile-page-progress-meta');

    if (levelEl) levelEl.textContent = (isMaxLevel ? 'MAX ' : 'LVL ') + level;
    if (totalEl) totalEl.textContent = totalXp + ' XP';
    if (fillEl) fillEl.style.width = percent + '%';
    if (subEl) subEl.textContent = isMaxLevel ? 'MAX LEVEL' : (xpIntoLevel + ' / ' + xpForNext + ' TO NEXT');
    if (metaEl) metaEl.textContent = 'TODAY ' + dailyXp + ' XP · DISCOVERED ' + discoveries;
}

function loadProfileFields(username, card) {
    var api = new mw.Api();
    api.get({
        action: 'userprofile',
        user: username
    }).then(function(data) {
        var profile = data.userprofile;
        updateProfileFields(card, {
            name: profile.name || '',
            discord: profile.discord || '',
            role: profile.role || '',
            bio: profile.bio || ''
        });
    }).fail(function() {
        updateProfileFields(card, {
            name: '',
            discord: '',
            role: '',
            bio: ''
        });
    });
}

function updateProfileFields(card, data) {
    var nameEl = card.querySelector('[data-field="name"]');
    var roleEl = card.querySelector('[data-field="role"]');
    var discordEl = card.querySelector('[data-field="discord"]');
    var bioEl = card.querySelector('[data-field="bio"]');
    if (nameEl) nameEl.textContent = data.name || '';
    if (roleEl) roleEl.textContent = data.role || '';
    if (discordEl) discordEl.textContent = data.discord ? ('디스코드: ' + data.discord) : '';
    if (bioEl) bioEl.textContent = data.bio || '';
}
// ========== 프로필 시스템 끝 ==========

// ========== 알림 시스템 ==========
function ensureNotificationPopup() {
    if (document.getElementById('clbi-notification-popup')) return;

    var popup = document.createElement('div');
    popup.id = 'clbi-notification-popup';
    popup.style.cssText =
        'display:none;position:fixed;z-index:99999;width:320px;max-height:420px;' +
        'background:#0a0909;border:2px solid #854369;border-radius:5px;' +
        'box-shadow:0 0 0 1px #1a1a1a, 0 8px 24px rgba(0,0,0,0.55);overflow:hidden;';

    popup.innerHTML =
        '<div style="padding:10px 12px;border-bottom:2px solid #854369;background:linear-gradient(to bottom, #171114 0%, #0a0909 100%);color:#E2E2E2;font-size:13px;font-weight:700;display:flex;align-items:center;justify-content:space-between;gap:8px;">' +
            '<span>알림</span>' +
            '<button type="button" id="clbi-notification-readall" style="background:#171717;border:1px solid #854369;border-radius:6px;color:#E2E2E2;font-size:11px;font-weight:700;padding:4px 8px;cursor:pointer;">전체 읽음</button>' +
        '</div>' +
        '<div id="clbi-notification-list" style="max-height:320px;overflow-y:auto;padding:8px 0;color:#E2E2E2;font-size:12px;">불러오는 중...</div>' +
        '<div style="padding:8px;border-top:1px solid #2a2a2a;background:#111;">' +
            '<a href="/index.php?title=Special:Notifications" id="clbi-notification-more" style="display:block;width:100%;text-align:center;padding:8px 10px;border-radius:6px;background:#171717;border:1px solid #854369;color:#E2E2E2 !important;text-decoration:none !important;font-size:12px;font-weight:700;">더보기</a>' +
        '</div>';

    document.body.appendChild(popup);
}

function positionNotificationPopup() {
    var btn = document.getElementById('profile-quick-notifications');
    var popup = document.getElementById('clbi-notification-popup');
    if (!btn || !popup) return;

    var rect = btn.getBoundingClientRect();
    var top = rect.bottom + 6;
    var left = rect.left + (rect.width / 2) - (popup.offsetWidth / 2);

    if (left < 8) left = 8;
    if (left + popup.offsetWidth > window.innerWidth - 8) {
        left = window.innerWidth - popup.offsetWidth - 8;
    }
    if (top + popup.offsetHeight > window.innerHeight - 8) {
        top = Math.max(8, rect.top - popup.offsetHeight - 6);
    }

    popup.style.top = top + 'px';
    popup.style.left = left + 'px';
}

function parseNotificationItemsFromHtml(html) {
    var parser = new DOMParser();
    var doc = parser.parseFromString(html, 'text/html');

    var selectors = [
        '.mw-echo-ui-notificationItemWidget',
        '.mw-echo-ui-notificationsInboxWidgetRow',
        '.echo-ui-notificationItemWidget',
        'li[data-notification-id]',
        '.mw-echo-notifications-list li'
    ];

    var items = [];
    for (var i = 0; i < selectors.length; i++) {
        items = Array.prototype.slice.call(doc.querySelectorAll(selectors[i]));
        if (items.length) break;
    }

    return items.slice(0, 5).map(function(item) {
        var link = item.querySelector('a[href]');
        var href = link ? link.getAttribute('href') : '/index.php?title=Special:Notifications';
        var text = (item.textContent || '').replace(/\s+/g, ' ').trim();

        var notificationId =
            item.getAttribute('data-notification-id') ||
            item.getAttribute('data-id') ||
            item.getAttribute('data-notification') ||
            '';

        if (!notificationId) {
            var anyWithId = item.querySelector('[data-notification-id], [data-id], [data-notification]');
            if (anyWithId) {
                notificationId =
                    anyWithId.getAttribute('data-notification-id') ||
                    anyWithId.getAttribute('data-id') ||
                    anyWithId.getAttribute('data-notification') ||
                    '';
            }
        }

        if (href && href.indexOf('http') !== 0) {
            href = href.charAt(0) === '/'
                ? href
                : '/index.php' + (href.charAt(0) === '?' ? href : '/' + href);
        }

        return {
            id: notificationId,
            href: href,
            text: text || '알림'
        };
    });
}

function setNotificationIcon(hasItems) {
    var quickIcon = document.getElementById('profile-quick-notification-icon');
    var svg = hasItems ? CLBI_SVG_BELL_DOT : CLBI_SVG_BELL;

    if (quickIcon) {
        quickIcon.innerHTML = svg;
        quickIcon.classList.toggle('has-notifications', !!hasItems);
    }
}

function renderNotificationPopup(items) {
    var list = document.getElementById('clbi-notification-list');
    var badge = document.getElementById('clbi-notification-badge');
    if (!list) return;

    if (!items || !items.length) {
        list.innerHTML = '<div style="padding:14px 12px;color:#999;">표시할 알림이 없습니다.</div>';
        if (badge) badge.style.display = 'none';
        setNotificationIcon(false);
        return;
    }

    var html = '';
    for (var i = 0; i < items.length; i++) {
        html +=
            '<a href="' + items[i].href + '" class="clbi-notification-item" data-notification-id="' + (items[i].id || '') + '" style="display:block;padding:10px 12px;color:#E2E2E2 !important;text-decoration:none !important;border-bottom:1px solid #1f1f1f;line-height:1.5;">' +
                items[i].text +
            '</a>';
    }
    list.innerHTML = html;

    if (badge) {
        badge.textContent = items.length;
        badge.style.display = 'block';
    }
    setNotificationIcon(true);
}

function loadNotificationsIntoPopup() {
    var list = document.getElementById('clbi-notification-list');
    if (list) {
        list.innerHTML = '<div style="padding:14px 12px;color:#999;">불러오는 중...</div>';
    }

    fetch('/index.php?title=Special:Notifications', { credentials: 'same-origin' })
        .then(function(res) {
            return res.text();
        })
        .then(function(html) {
            var items = parseNotificationItemsFromHtml(html);
            renderNotificationPopup(items);
        })
        .catch(function(err) {
            console.error(err);
            if (list) {
                list.innerHTML = '<div style="padding:14px 12px;color:#999;">알림을 불러오지 못했습니다.</div>';
            }
        });
}

function markAllNotificationsRead() {
    return new mw.Api().postWithToken('csrf', {
        action: 'echomarkread',
        list: 'all'
    });
}

function markNotificationReadById(notificationId) {
    if (!notificationId) {
        return $.Deferred().resolve().promise();
    }

    return new mw.Api().postWithToken('csrf', {
        action: 'echomarkread',
        list: notificationId
    });
}

function initNotifications() {
    var quickBtn = document.getElementById('profile-quick-notifications');

    if (!quickBtn) return;

    ensureNotificationPopup();
    loadNotificationsIntoPopup();

    $(document)
        .off('click.clbiNotificationToggle')
        .on('click.clbiNotificationToggle', '#profile-quick-notifications', function(e) {
            e.preventDefault();
            e.stopPropagation();

            var popup = document.getElementById('clbi-notification-popup');
            if (!popup) return;

            if (popup.style.display === 'none' || popup.style.display === '') {
                popup.style.display = 'block';
                positionNotificationPopup();
                loadNotificationsIntoPopup();
            } else {
                popup.style.display = 'none';
            }
        });

    $(document)
        .off('click.clbiNotificationOutside')
        .on('click.clbiNotificationOutside', function(e) {
            var popup = document.getElementById('clbi-notification-popup');
            var quickToggle = document.getElementById('profile-quick-notifications');
            if (!popup) return;

            if (!popup.contains(e.target) && (!quickToggle || !quickToggle.contains(e.target))) {
                popup.style.display = 'none';
            }
        });

    $(document)
        .off('click.clbiNotificationReadAll')
        .on('click.clbiNotificationReadAll', '#clbi-notification-readall', function(e) {
            e.preventDefault();
            e.stopPropagation();

            var button = this;
            button.disabled = true;
            button.textContent = '처리 중...';

            markAllNotificationsRead()
                .then(function() {
                    loadNotificationsIntoPopup();
                })
                .always(function() {
                    button.disabled = false;
                    button.textContent = '전체 읽음';
                });
        });

    $(document)
        .off('click.clbiNotificationItem')
        .on('click.clbiNotificationItem', '.clbi-notification-item', function(e) {
            e.preventDefault();
            e.stopPropagation();

            var href = this.getAttribute('href');
            var notificationId = this.getAttribute('data-notification-id') || '';

            markNotificationReadById(notificationId).always(function() {
                loadNotificationsIntoPopup();
                if (href) {
                    window.location.href = href;
                }
            });
        });

    $(window)
        .off('resize.clbiNotification')
        .on('resize.clbiNotification', function() {
            var popup = document.getElementById('clbi-notification-popup');
            if (popup && popup.style.display === 'block') {
                positionNotificationPopup();
            }
        });
}
// ========== 알림 시스템 끝 ==========

function initUserProfilePage() {
    $('body').addClass('user-profile-settings-page');

    var saveBtn = document.getElementById('pref-save');
    if (!saveBtn) return;

    function getPrefRow(id) {
        var el = document.getElementById(id);
        if (!el) return null;
        return el.closest('.clbi-pref-row') || el.parentNode;
    }

    function removePrefRow(id) {
        var row = getPrefRow(id);
        if (row && row.parentNode) {
            row.parentNode.removeChild(row);
        }
    }

    function createPrefSection(className, titleText) {
        var section = document.createElement('div');
        section.className = 'clbi-pref-section ' + className;

        var title = document.createElement('div');
        title.className = 'clbi-pref-section-title';
        title.textContent = titleText;

        var body = document.createElement('div');
        body.className = 'clbi-pref-section-body';

        section.appendChild(title);
        section.appendChild(body);

        return {
            section: section,
            body: body
        };
    }

    function moveRowToSection(id, targetBody, className) {
        var row = getPrefRow(id);
        if (!row || !targetBody) return false;

        row.classList.add('clbi-pref-row-key-' + className);
        targetBody.appendChild(row);
        return true;
    }

    function rebuildProfileSettingsLayout() {
        var root = document.querySelector('.clbi-prefs-profile');
        if (!root || root.dataset.profileSettingsReworked === '1') return;

        root.dataset.profileSettingsReworked = '1';
        root.classList.add('profile-settings-console');

        removePrefRow('pref-badges');

        var originalRows = Array.prototype.slice.call(root.querySelectorAll('.clbi-pref-row'));
        var actionNodes = [];

        if (saveBtn.parentNode === root || saveBtn.closest('.clbi-prefs-profile') === root) {
            actionNodes.push(saveBtn);
        }

        var statusNode = document.getElementById('pref-status');
        if (statusNode && statusNode.closest('.clbi-prefs-profile') === root) {
            actionNodes.push(statusNode);
        }

        var main = document.createElement('div');
        main.className = 'clbi-pref-main-grid';

        var media = createPrefSection('clbi-pref-section-media', 'PROFILE IMAGE');
        var identity = createPrefSection('clbi-pref-section-identity', 'IDENTITY RECORD');
        var bio = createPrefSection('clbi-pref-section-bio', 'BIOGRAPHY');
        var account = createPrefSection('clbi-pref-section-account', 'ACCOUNT CONTACT');
        var misc = createPrefSection('clbi-pref-section-misc', 'OTHER OPTIONS');

        main.appendChild(media.section);
        main.appendChild(identity.section);
        main.appendChild(bio.section);
        main.appendChild(account.section);
        main.appendChild(misc.section);

        root.innerHTML = '';
        root.appendChild(main);

        moveRowToSection('pref-pfp-preview', media.body, 'pfp');
        moveRowToSection('pref-pfp-btn', media.body, 'pfp');
        moveRowToSection('pref-pfp-input', media.body, 'pfp');

        moveRowToSection('pref-name', identity.body, 'name');
        moveRowToSection('pref-role', identity.body, 'role');
        moveRowToSection('pref-discord', identity.body, 'discord');

        moveRowToSection('pref-bio', bio.body, 'bio');

        moveRowToSection('pref-new-email', account.body, 'email');
        moveRowToSection('pref-email-password', account.body, 'email');
        moveRowToSection('pref-email-save', account.body, 'email');

        originalRows.forEach(function (row) {
            if (!row.parentNode && !row.className.match(/clbi-pref-row-key-/)) {
                misc.body.appendChild(row);
            }
        });

        if (!misc.body.children.length) {
            misc.section.parentNode.removeChild(misc.section);
        }

        var actions = document.createElement('div');
        actions.className = 'clbi-pref-actions';

        if (saveBtn) actions.appendChild(saveBtn);
        if (statusNode) actions.appendChild(statusNode);

        root.appendChild(actions);
    }

    rebuildProfileSettingsLayout();

    var api = new mw.Api();
    var selectedFile = null;
    var cropper = null;

    if (!document.getElementById('clbi-gallery-modal')) {
        var gModal = document.createElement('div');
        gModal.id = 'clbi-gallery-modal';
        gModal.style.cssText =
            'display:none;position:fixed;top:0;left:0;width:100%;height:100%;background:rgba(0,0,0,0.85);z-index:99999;align-items:center;justify-content:center;';

        gModal.innerHTML =
            '<div style="background:#1e1e1e;border:2px solid #854369;border-radius:12px;padding:24px;max-width:480px;width:90%;display:flex;flex-direction:column;gap:16px;">' +
                '<div style="display:flex;justify-content:space-between;align-items:center;">' +
                    '<span style="font-size:14px;font-weight:700;color:#e2e2e2;">프로필 사진 선택</span>' +
                    '<button type="button" id="clbi-gallery-close" style="background:none;border:none;color:#aaa;font-size:18px;cursor:pointer;">✕</button>' +
                '</div>' +
                '<button type="button" id="clbi-gallery-upload-btn" style="background:#2a2a2a;border:2px dashed #854369;border-radius:8px;padding:32px;color:#e2e2e2;cursor:pointer;display:flex;flex-direction:column;align-items:center;gap:8px;font-size:13px;width:100%;">' +
                    '<span style="font-size:32px;">🖼️</span>새 사진 업로드' +
                '</button>' +
                '<div id="clbi-gallery-history-section" style="display:none;">' +
                    '<div style="font-size:11px;color:#888;margin-bottom:8px;">이전 사진 — 클릭하면 바로 적용</div>' +
                    '<div id="clbi-gallery-history" style="display:flex;gap:8px;flex-wrap:wrap;"></div>' +
                '</div>' +
            '</div>';

        document.body.appendChild(gModal);
    }

    if (!document.getElementById('clbi-crop-modal')) {
        var cModal = document.createElement('div');
        cModal.id = 'clbi-crop-modal';
        cModal.style.cssText =
            'display:none;position:fixed;top:0;left:0;width:100%;height:100%;background:rgba(0,0,0,0.85);z-index:99999;align-items:center;justify-content:center;';

        cModal.innerHTML =
            '<div style="background:#1e1e1e;border:2px solid #854369;border-radius:12px;padding:24px;max-width:500px;width:90%;display:flex;flex-direction:column;gap:16px;">' +
                '<div style="font-size:14px;font-weight:700;color:#e2e2e2;">사진 조정</div>' +
                '<div style="width:100%;max-height:380px;overflow:hidden;border-radius:8px;">' +
                    '<img id="clbi-crop-image" style="max-width:100%;">' +
                '</div>' +
                '<div style="display:flex;gap:8px;justify-content:flex-end;">' +
                    '<button type="button" id="clbi-crop-cancel" style="background:#2a2a2a;color:#e2e2e2;border:1px solid #444;padding:8px 16px;border-radius:6px;cursor:pointer;">취소</button>' +
                    '<button type="button" id="clbi-crop-confirm" style="background:#854369;color:#fff;border:none;padding:8px 16px;border-radius:6px;cursor:pointer;">확정</button>' +
                '</div>' +
            '</div>';

        document.body.appendChild(cModal);
    }

    var gModal = document.getElementById('clbi-gallery-modal');
    var cModal = document.getElementById('clbi-crop-modal');
    var cropImage = document.getElementById('clbi-crop-image');
    var pfpInput = document.getElementById('pref-pfp-input');

    function openGallery() {
        gModal.style.display = 'flex';

        var username = mw.config.get('wgUserName');
        api.get({
            action: 'query',
            titles: '파일:Pfp-' + username + '.png',
            prop: 'imageinfo',
            iiprop: 'url|timestamp',
            iilimit: 6
        }).then(function(data) {
            var pages = data.query.pages;
            var page = pages[Object.keys(pages)[0]];
            if (!page.imageinfo || page.imageinfo.length === 0) return;

            var historyEl = document.getElementById('clbi-gallery-history');
            var sectionEl = document.getElementById('clbi-gallery-history-section');
            historyEl.innerHTML = '';

            page.imageinfo.forEach(function(info, idx) {
                var wrap = document.createElement('div');
                wrap.style.cssText = 'position:relative;cursor:pointer;';

                var img = document.createElement('img');
                img.src = info.url;
                img.style.cssText =
                    'width:72px;height:72px;object-fit:cover;border-radius:8px;border:2px solid #444;flex-shrink:0;';

                if (idx === 0) {
                    img.style.borderColor = '#854369';
                    var badge = document.createElement('div');
                    badge.textContent = '현재';
                    badge.style.cssText =
                        'position:absolute;bottom:4px;left:50%;transform:translateX(-50%);background:#854369;color:#fff;font-size:9px;padding:1px 6px;border-radius:10px;';
                    wrap.appendChild(badge);
                }

                img.addEventListener('mouseenter', function() {
                    if (idx !== 0) img.style.borderColor = '#854369';
                });

                img.addEventListener('mouseleave', function() {
                    if (idx !== 0) img.style.borderColor = '#444';
                });

                img.addEventListener('click', function() {
                    fetch(info.url)
                        .then(function(r) {
                            return r.blob();
                        })
                        .then(function(blob) {
                            selectedFile = new File([blob], 'profile.png', { type: 'image/png' });
                            document.getElementById('pref-pfp-preview').src = URL.createObjectURL(blob);
                            gModal.style.display = 'none';
                            document.getElementById('pref-pfp-btn').textContent = '✓ 사진 선택됨';
                        });
                });

                wrap.appendChild(img);
                historyEl.appendChild(wrap);
            });

            sectionEl.style.display = 'block';
        });
    }

    function openCrop(src) {
        cropImage.src = src;
        cModal.style.display = 'flex';

        if (cropper) {
            cropper.destroy();
            cropper = null;
        }

        setTimeout(function() {
            cropper = new Cropper(cropImage, {
                aspectRatio: 1,
                viewMode: 1,
                dragMode: 'move',
                autoCropArea: 0.8,
                cropBoxResizable: true,
                cropBoxMovable: true
            });
        }, 150);
    }

    document.getElementById('pref-pfp-btn').addEventListener('click', function() {
        openGallery();
    });

    document.getElementById('clbi-gallery-upload-btn').addEventListener('click', function() {
        pfpInput.click();
    });

    document.getElementById('clbi-gallery-close').addEventListener('click', function() {
        gModal.style.display = 'none';
    });

    pfpInput.addEventListener('change', function() {
        var file = this.files[0];
        if (!file) return;

        gModal.style.display = 'none';

        var reader = new FileReader();
        reader.onload = function(e) {
            openCrop(e.target.result);
        };
        reader.readAsDataURL(file);
    });

    document.getElementById('clbi-crop-cancel').addEventListener('click', function() {
        cModal.style.display = 'none';
        if (cropper) {
            cropper.destroy();
            cropper = null;
        }
        pfpInput.value = '';
    });

    document.getElementById('clbi-crop-confirm').addEventListener('click', function() {
        if (!cropper) return;

        var canvas = cropper.getCroppedCanvas({ width: 256, height: 256 });
        if (!canvas) return;

        canvas.toBlob(function(blob) {
            selectedFile = new File([blob], 'profile.png', { type: 'image/png' });
            document.getElementById('pref-pfp-preview').src = URL.createObjectURL(blob);
            cModal.style.display = 'none';
            cropper.destroy();
            cropper = null;
            document.getElementById('pref-pfp-btn').textContent = '✓ 사진 선택됨';
        }, 'image/png');
    });

    var emailSaveBtn = document.getElementById('pref-email-save');
    if (emailSaveBtn) {
        emailSaveBtn.addEventListener('click', function() {
            var statusEl = document.getElementById('pref-email-status');
            var newEmail = document.getElementById('pref-new-email').value;
            var password = document.getElementById('pref-email-password').value;

            if (!newEmail || !password) {
                statusEl.textContent = '이메일과 비밀번호를 입력해주세요.';
                return;
            }

            statusEl.textContent = '변경 중...';

            api.postWithToken('csrf', {
                action: 'changeemail',
                email: newEmail,
                password: password
            }).then(function() {
                statusEl.textContent = '✓ 이메일 변경됨';
                document.getElementById('pref-new-email').value = '';
                document.getElementById('pref-email-password').value = '';

                setTimeout(function() {
                    statusEl.textContent = '';
                }, 3000);
            }).fail(function(code, data) {
                var msg = data && data.error && data.error.info ? data.error.info : '변경 실패';
                statusEl.textContent = msg;
            });
        });
    }

    saveBtn.addEventListener('click', function() {
        var statusEl = document.getElementById('pref-status');
        statusEl.textContent = '저장 중...';

        var promises = [];

        if (selectedFile) {
            var username = mw.config.get('wgUserName');
            promises.push(
                api.postWithToken('csrf', {
                    action: 'upload',
                    filename: 'Pfp-' + username + '.png',
                    ignorewarnings: true,
                    file: selectedFile,
                    format: 'json'
                }, {
                    contentType: 'multipart/form-data'
                })
            );
        }

        var fields = ['name', 'discord', 'role', 'bio'];

        for (var i = 0; i < fields.length; i++) {
            var el = document.getElementById('pref-' + fields[i]);
            if (!el) continue;

            promises.push(
                api.postWithToken('csrf', {
                    action: 'options',
                    optionname: 'profile-' + fields[i],
                    optionvalue: el.value
                })
            );
        }

        $.when.apply($, promises)
            .then(function() {
                statusEl.textContent = '✓ 저장됨';
                selectedFile = null;
                document.getElementById('pref-pfp-btn').textContent = '사진 선택';

                setTimeout(function() {
                    statusEl.textContent = '';
                }, 2000);
            })
            .fail(function() {
                statusEl.textContent = '저장 실패';
            });
    });
}

/* =========================================
   Banner / CRT Page Monitor thumbnail slices
   - base 이미지는 틀에 들어간 파일 문법 그대로 사용
   - slice 레이어에는 300px MediaWiki 썸네일만 삽입
   ========================================= */

(function ($, mw) {
    var thumbCache = {};

    function parseSliceWidth(value) {
        var parsed = parseInt(value, 10);

        if (!isFinite(parsed) || parsed < 120) {
            return 300;
        }

        return parsed;
    }

    function getImageSrc(img) {
        return img ? (img.currentSrc || img.getAttribute('src') || img.src || '') : '';
    }

    function getFileNameFromSrc(src) {
        var a;
        var parts;
        var fileName;

        if (!src) return '';

        a = document.createElement('a');
        a.href = src;

        parts = (a.pathname || '').split('/').filter(function (part) {
            return !!part;
        });

        if (!parts.length) return '';

        fileName = parts.pop();

        /*
         * MediaWiki thumb URL 예시:
         * /images/thumb/a/ab/File.png/1000px-File.png
         * /images/thumb/a/ab/File.svg/1000px-File.svg.png
         *
         * 이 경우 실제 파일명은 마지막 조각이 아니라 그 앞 조각이다.
         */
        if (/^\d+px-/.test(fileName) && parts.length) {
            fileName = parts.pop();
        }

        fileName = fileName.replace(/^\d+px-/, '');

        try {
            fileName = decodeURIComponent(fileName);
        } catch (e) {}

        return fileName;
    }

    function resolveThumbUrl(img, width, callback) {
        var src = getImageSrc(img);
        var fileName = getFileNameFromSrc(src);
        var cacheKey;
        var entry;

        if (!src) return;

        if (!fileName || !mw || !mw.loader) {
            callback(src);
            return;
        }

        cacheKey = fileName + '|' + width;
        entry = thumbCache[cacheKey];

        if (entry) {
            if (entry.resolved) {
                callback(entry.url || src);
            } else {
                entry.callbacks.push(callback);
            }
            return;
        }

        entry = {
            resolved: false,
            url: '',
            callbacks: [callback]
        };

        thumbCache[cacheKey] = entry;

        function finish(url) {
            var callbacks = entry.callbacks.slice();
            var i;

            entry.resolved = true;
            entry.url = url || src;
            entry.callbacks = [];

            for (i = 0; i < callbacks.length; i++) {
                callbacks[i](entry.url);
            }
        }

        mw.loader.using('mediawiki.api').done(function () {
            var api = new mw.Api();

            api.get({
                action: 'query',
                titles: 'File:' + fileName,
                prop: 'imageinfo',
                iiprop: 'url',
                iiurlwidth: width,
                formatversion: 2
            }).done(function (data) {
                var page;
                var info;

                if (
                    data &&
                    data.query &&
                    data.query.pages &&
                    data.query.pages.length
                ) {
                    page = data.query.pages[0];

                    if (
                        page &&
                        page.imageinfo &&
                        page.imageinfo.length
                    ) {
                        info = page.imageinfo[0];
                    }
                }

                finish((info && (info.thumburl || info.url)) || src);
            }).fail(function () {
                finish(src);
            });
        }).fail(function () {
            finish(src);
        });
    }

    function applySliceImages(frame, thumbUrl) {
        var slices;
        var i;
        var img;

        if (!frame || !thumbUrl) return;

        slices = frame.querySelectorAll('.crt-page-monitor-slice');

        for (i = 0; i < slices.length; i++) {
            slices[i].innerHTML = '';

            img = document.createElement('img');
            img.className = 'crt-page-monitor-slice-img';
            img.src = thumbUrl;
            img.alt = '';
            img.decoding = 'async';
            img.loading = 'eager';
            img.setAttribute('aria-hidden', 'true');

            slices[i].appendChild(img);
        }

        frame.setAttribute('data-crt-slices-ready', '1');
    }

    function initBannerFrame(frame) {
        var baseImg;
        var width;

        if (!frame) return;
        if (frame.getAttribute('data-crt-slices-ready') === '1') return;

        baseImg = frame.querySelector('.crt-page-monitor-image-base img');

        if (!baseImg) return;

        width = parseSliceWidth(frame.getAttribute('data-crt-slice-width'));

        resolveThumbUrl(baseImg, width, function (thumbUrl) {
            if (!frame || !frame.parentNode) return;
            applySliceImages(frame, thumbUrl);
        });
    }

    function initBannerFrames(root) {
        var scope = root && root.querySelectorAll ? root : document;
        var frames = scope.querySelectorAll('.crt-page-monitor-frame');
        var i;

        for (i = 0; i < frames.length; i++) {
            initBannerFrame(frames[i]);
        }
    }

    $(function () {
        initBannerFrames(document);
    });

    if (mw && mw.hook) {
        mw.hook('wikipage.content').add(function ($content) {
            initBannerFrames($content && $content[0] ? $content[0] : document);
        });
    }
})(jQuery, window.mw);

/* =========================================
   Doc Tab System — Q/E 단축키 탭 전환
   글리치 플리커 + RGB split + 방향 슬라이드
   ========================================= */

(function () {
    'use strict';

var keydownBound = false;

    function initDocTabs() {
        var tabBars = document.querySelectorAll('.doc-tab-bar');
        if (!tabBars.length) return;

        tabBars.forEach(function (bar) {
            if (bar.getAttribute('data-tabs-init')) return;
            bar.setAttribute('data-tabs-init', '1');

            var tabs = Array.from(bar.querySelectorAll('.doc-tab'));
            if (!tabs.length) return;

            var panel = bar.closest('.doc-panel');
            var display = panel ? panel.querySelector('.doc-display') : null;
            if (!display) display = document.getElementById('doc-main-display');
            if (!display) return;

            tabs.forEach(function (tab, i) {
                tab.addEventListener('click', function () {
                    var currentIdx = tabs.findIndex(function (t) {
                        return t.classList.contains('active');
                    });
                    if (currentIdx === i) return;
                    switchTab(tabs, display, i, i > currentIdx ? 1 : -1);
                });
            });

            var initIdx = tabs.findIndex(function (t) { return t.classList.contains('active'); });
            if (initIdx !== -1) {
                var initRef = tabs[initIdx].dataset.ref;
                var initEl = initRef ? document.getElementById(initRef) : null;
                display.innerHTML = initEl ? initEl.innerHTML : (tabs[initIdx].dataset.content || '');
            }
        });

        if (!keydownBound) {
            keydownBound = true;
            document.addEventListener('keydown', function (e) {
                var tag = document.activeElement.tagName;
                if (tag === 'INPUT' || tag === 'TEXTAREA') return;

                var bar = document.querySelector('.doc-tab-bar');
                if (!bar) return;
                var tabs = Array.from(bar.querySelectorAll('.doc-tab'));

                var panel = bar.closest('.doc-panel');
                var display = panel ? panel.querySelector('.doc-display') : null;
                if (!display) display = document.getElementById('doc-main-display');
                if (!display) return;

                var activeIdx = tabs.findIndex(function (t) {
                    return t.classList.contains('active');
                });
                if (activeIdx === -1) return;

                if (e.key === 'q' || e.key === 'Q') {
                    e.preventDefault();
                    var prev = (activeIdx - 1 + tabs.length) % tabs.length;
                    if (prev !== activeIdx) switchTab(tabs, display, prev, -1);
                } else if (e.key === 'e' || e.key === 'E') {
                    e.preventDefault();
                    var next = (activeIdx + 1) % tabs.length;
                    if (next !== activeIdx) switchTab(tabs, display, next, 1);
                }
            });
        }
    }

    var isAnimating = false;

    function switchTab(tabs, display, nextIdx, dir) {
        if (isAnimating) return;
        isAnimating = true;

        tabs.forEach(function (t) { t.classList.remove('active'); });
        tabs[nextIdx].classList.add('active');

        var ref = tabs[nextIdx].dataset.ref;
        var nextContent;
        if (ref) {
            var refEl = document.getElementById(ref);
            nextContent = refEl ? refEl.innerHTML : '';
        } else {
            nextContent = tabs[nextIdx].dataset.content || '';
        }

        glitchOut(display, dir, function () {
            display.innerHTML = nextContent;
            glitchIn(display, dir, function () {
                isAnimating = false;
            });
        });
    }

    function glitchOut(el, dir, cb) {
        var duration = 160;
        var start = null;
        var slideX = dir * 16;

        function step(ts) {
            if (!start) start = ts;
            var p = Math.min((ts - start) / duration, 1);
            var ease = p * p;

            var tx = slideX * ease;
            var skew = dir * ease * 1.0;
            var opacity = 1 - ease;
            var rgb = ease * 5;

            el.style.transform = 'translateX(' + tx + 'px) skewX(' + skew + 'deg)';
            el.style.opacity = opacity;
            el.style.filter =
                'drop-shadow(' + (-rgb) + 'px 0 0 rgba(80,160,255,0.75)) ' +
                'drop-shadow(' + rgb + 'px 0 0 rgba(255,55,90,0.65)) ' +
                'brightness(' + (1 + ease * 0.25) + ')';

            if (p < 1) {
                requestAnimationFrame(step);
            } else {
                el.style.opacity = '0';
                cb();
            }
        }
        requestAnimationFrame(step);
    }

    function glitchIn(el, dir, cb) {
        var duration = 200;
        var start = null;
        var startX = -dir * 16;

        el.style.transform = 'translateX(' + startX + 'px) skewX(' + (-dir * 1.0) + 'deg)';
        el.style.opacity = '0';

        function step(ts) {
            if (!start) start = ts;
            var p = Math.min((ts - start) / duration, 1);
            var ease = 1 - Math.pow(1 - p, 3);

            var tx = startX * (1 - ease);
            var skew = -dir * 1.0 * (1 - ease);
            var opacity = ease;
            var rgb = (1 - ease) * 3;
            var brightness = 1 + (1 - ease) * 0.35;

            el.style.transform = 'translateX(' + tx + 'px) skewX(' + skew + 'deg)';
            el.style.opacity = opacity;
            el.style.filter =
                'drop-shadow(' + (-rgb) + 'px 0 0 rgba(80,160,255,0.65)) ' +
                'drop-shadow(' + rgb + 'px 0 0 rgba(255,55,90,0.55)) ' +
                'brightness(' + brightness + ')';

            if (p < 1) {
                requestAnimationFrame(step);
            } else {
                el.style.transform = '';
                el.style.opacity = '';
                el.style.filter = '';
                cb();
            }
        }
        requestAnimationFrame(step);
    }

if (document.readyState === 'loading') {
    document.addEventListener('DOMContentLoaded', initDocTabs);
} else {
    initDocTabs();
}

if (typeof mw !== 'undefined' && mw.hook) {
    mw.hook('wikipage.content').add(function () {
        initDocTabs();
    });
}

})();

/* =========================================
   Doc Section Switch — 좌측 섹션 전환
   ========================================= */

$(document).on('click', '.doc-nav-item[data-section]', function () {
    var name = $(this).attr('data-section');
    var display = document.getElementById('doc-main-display');
    var titleEl = document.getElementById('doc-center-title');
    var tabBar = document.getElementById('doc-tab-bar-text');

    if (!display) return;

    $('.doc-nav-item[data-section]').removeClass('active');
    $('.doc-nav-item[data-section="' + name + '"]').addClass('active');

    if (name === 'text') {
        if (titleEl) titleEl.textContent = '개요';
        if (tabBar) $(tabBar).show();
        var activeTab = tabBar ? tabBar.querySelector('.doc-tab.active') : null;
        if (!activeTab && tabBar) activeTab = tabBar.querySelector('.doc-tab');
        if (activeTab) {
            var ref = activeTab.dataset.ref;
            var refEl = ref ? document.getElementById(ref) : null;
            display.innerHTML = refEl ? refEl.innerHTML : (activeTab.dataset.content || '');
        }
    } else {
        if (titleEl) titleEl.textContent = name === 'factions' ? '세력' : name === 'people' ? '인물' : name;
        if (tabBar) $(tabBar).hide();
        var refEl = document.getElementById('doc-content-' + name);
        display.innerHTML = refEl ? refEl.innerHTML : '';
    }
});

/* =========================================
   CRT WebGL Renderer — cool-retro-term IBM DOS style
   ========================================= */
(function () {
    'use strict';

    function createNoiseTexture(gl) {
        var size = 512;
        var data = new Uint8Array(size * size * 4);
        var s = 12345;
        function rand() {
            s = (s * 1664525 + 1013904223) & 0xffffffff;
            return (s >>> 0) / 0xffffffff;
        }
        for (var i = 0; i < data.length; i++) {
            data[i] = (rand() * 255) | 0;
        }
        var tex = gl.createTexture();
        gl.bindTexture(gl.TEXTURE_2D, tex);
        gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, size, size, 0, gl.RGBA, gl.UNSIGNED_BYTE, data);
        gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.REPEAT);
        gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.REPEAT);
        gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.LINEAR);
        gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.LINEAR);
        return tex;
    }

    var VERT = [
        'attribute vec2 a_pos;',
        'varying vec2 v_uv;',
        'void main() {',
        '  v_uv = vec2(a_pos.x * 0.5 + 0.5, 0.5 - a_pos.y * 0.5);',
        '  gl_Position = vec4(a_pos, 0.0, 1.0);',
        '}'
    ].join('\n');

    var FRAG = [
        'precision mediump float;',
        'uniform sampler2D u_tex;',
        'uniform sampler2D u_noise;',
        'uniform vec2 u_res;',
        'uniform vec2 u_imgSize;',
        'uniform float u_time;',
        'uniform vec2 u_noiseScale;',
        'varying vec2 v_uv;',

        'float sum2(vec2 v) { return v.x + v.y; }',
        'float min2(vec2 v) { return min(v.x, v.y); }',
        'float rgb2grey(vec3 v) { return dot(v, vec3(0.21, 0.72, 0.04)); }',

        'vec2 coverUV(vec2 uv) {',
        '  float imgAR = u_imgSize.x / u_imgSize.y;',
        '  float scrAR = u_res.x / u_res.y;',
        '  float scale = imgAR / scrAR;',
        '  float offsetY = (1.0 - scale) * 0.5;',
        '  return vec2(uv.x, uv.y * scale + offsetY);',
        '}',

        'vec2 barrel(vec2 v, vec2 cc, float k) {',
        '  float ar = u_res.x / u_res.y;',
        '  vec2 c2 = cc;',
        '  if (ar > 1.0) c2.x /= ar; else c2.y *= ar;',
        '  float dist = dot(c2, c2) * k;',
        '  return v - cc * (1.0 + dist) * dist;',
        '}',

        'vec4 sampleInitialNoise(float t) {',
        '  return texture2D(u_noise, vec2(fract(t/2048.0), fract(t/1048576.0)));',
        '}',

        'vec4 sampleScreenNoise(vec2 uv) {',
        '  return texture2D(u_noise, u_noiseScale * uv);',
        '}',

        'vec3 applyRgbShift(vec2 texUV, float shift) {',
        '  vec2 d = vec2(shift, 0.0);',
        '  vec3 r = texture2D(u_tex, clamp(texUV + d, 0.0, 1.0)).rgb;',
        '  vec3 c = texture2D(u_tex, texUV).rgb;',
        '  vec3 l = texture2D(u_tex, clamp(texUV - d, 0.0, 1.0)).rgb;',
        '  return vec3(',
        '    l.r*0.10 + r.r*0.30 + c.r*0.60,',
        '    l.g*0.20 + r.g*0.20 + c.g*0.60,',
        '    l.b*0.30 + r.b*0.10 + c.b*0.60',
        '  );',
        '}',

        'vec3 applyBloom(vec2 texUV, float strength) {',
        '  vec2 px = 2.0 / u_res;',
        '  vec3 acc = vec3(0.0);',
        '  acc += texture2D(u_tex, clamp(texUV + vec2( px.x,  0.0), 0.0, 1.0)).rgb;',
        '  acc += texture2D(u_tex, clamp(texUV + vec2(-px.x,  0.0), 0.0, 1.0)).rgb;',
        '  acc += texture2D(u_tex, clamp(texUV + vec2( 0.0,  px.y), 0.0, 1.0)).rgb;',
        '  acc += texture2D(u_tex, clamp(texUV + vec2( 0.0, -px.y), 0.0, 1.0)).rgb;',
        '  acc += texture2D(u_tex, clamp(texUV + vec2( px.x,  px.y), 0.0, 1.0)).rgb * 0.5;',
        '  acc += texture2D(u_tex, clamp(texUV + vec2(-px.x,  px.y), 0.0, 1.0)).rgb * 0.5;',
        '  acc += texture2D(u_tex, clamp(texUV + vec2( px.x, -px.y), 0.0, 1.0)).rgb * 0.5;',
        '  acc += texture2D(u_tex, clamp(texUV + vec2(-px.x, -px.y), 0.0, 1.0)).rgb * 0.5;',
        '  return acc / 6.0 * strength;',
        '}',

        'vec3 applyScanlines(vec2 uv, vec3 col) {',
        '  float line = mod(uv.y * u_res.y, 2.0);',
        '  vec3 hi = ((1.0 + 0.30) - 0.2 * col) * col;',
        '  vec3 lo = ((1.0 - 0.30) + 0.1 * col) * col;',
        '  return line < 1.0 ? lo : hi;',
        '}',

'vec3 applyRasterization(vec2 uv, vec3 col) {',
'  float t = u_time;',
'  vec2 noiseUV = uv + vec2(fract(t * 0.030), fract(t * 0.060));',
'  float wobbleX = (texture2D(u_noise, noiseUV * 0.8).r - 0.5) * 0.0018;',
'  float wobbleY = (texture2D(u_noise, noiseUV * 0.8 + 0.5).r - 0.5) * 0.0008;',
'  vec2 wobbledUV = clamp(uv + vec2(wobbleX, wobbleY), 0.0, 1.0);',
'  vec3 wobbled = texture2D(u_tex, wobbledUV).rgb;',
'  return mix(col, wobbled, 0.35);',
'}',

        'float glowingLine(vec2 uv, float t) {',
'  float pos = fract(t * 0.2);',
'  float lineY = pos * (u_res.y + 330.0) - 120.0;',
        '  float y = uv.y * u_res.y;',
        '  return fract(smoothstep(-300.0, 0.0, y - lineY));',
        '}',

        'vec2 applyHSync(vec2 uv, vec4 noise, float strength) {',
        '  float randval = strength - noise.r;',
        '  float scale = step(0.0, randval) * randval * strength;',
        '  float freq = mix(4.0, 40.0, noise.g);',
        '  uv.x += sin((uv.y + u_time * 0.001) * freq) * scale;',
        '  return uv;',
        '}',

        'void main() {',
        '  vec2 cc = vec2(0.5) - v_uv;',

        '  float curvature = 0.18;',
        '  vec2 uv = barrel(v_uv, cc, curvature);',

        '  float inScreen = min2(step(vec2(0.0), uv) - step(vec2(1.0), uv));',
        '  if (inScreen < 0.5) { gl_FragColor = vec4(0.0, 0.0, 0.0, 1.0); return; }',

        '  vec2 texUV = clamp(coverUV(uv), 0.0, 1.0);',

        '  vec4 initNoise = sampleInitialNoise(u_time);',
        '  vec4 screenNoise = sampleScreenNoise(uv);',

        '  texUV = applyHSync(texUV, initNoise, 0.006);',
        '  texUV = clamp(texUV, 0.0, 1.0);',

        '  texUV += (vec2(screenNoise.b, screenNoise.a) - 0.5) * 0.0006;',
        '  texUV = clamp(texUV, 0.0, 1.0);',

        '  vec3 col = applyRgbShift(texUV, 0.003);',
        '  col += applyBloom(texUV, 0.22);',

        '  vec2 bpx = 1.5 / u_res;',
        '  vec3 blurCol = vec3(0.0);',
        '  blurCol += texture2D(u_tex, clamp(texUV + vec2(-bpx.x, -bpx.y), 0.0, 1.0)).rgb;',
        '  blurCol += texture2D(u_tex, clamp(texUV + vec2( 0.0,   -bpx.y), 0.0, 1.0)).rgb;',
        '  blurCol += texture2D(u_tex, clamp(texUV + vec2( bpx.x, -bpx.y), 0.0, 1.0)).rgb;',
        '  blurCol += texture2D(u_tex, clamp(texUV + vec2(-bpx.x,  0.0  ), 0.0, 1.0)).rgb;',
        '  blurCol += texture2D(u_tex, clamp(texUV + vec2( bpx.x,  0.0  ), 0.0, 1.0)).rgb;',
        '  blurCol += texture2D(u_tex, clamp(texUV + vec2(-bpx.x,  bpx.y), 0.0, 1.0)).rgb;',
        '  blurCol += texture2D(u_tex, clamp(texUV + vec2( 0.0,    bpx.y), 0.0, 1.0)).rgb;',
        '  blurCol += texture2D(u_tex, clamp(texUV + vec2( bpx.x,  bpx.y), 0.0, 1.0)).rgb;',
        '  col = mix(col, blurCol / 8.0, 0.40);',

        '  col = applyScanlines(uv, col);',
        '  col = applyRasterization(texUV, col);',

        '  float glow = glowingLine(uv, u_time);',
'  col += glow * 0.08 * vec3(0.85, 0.95, 1.0);',

        '  float dist = length(cc);',
        '  col += screenNoise.a * 0.07 * (1.0 - dist * 1.3);',

        '  float grey = rgb2grey(col);',
        '  vec3 phosphor = vec3(0.75, 0.88, 1.0);',
        '  col = mix(col, grey * phosphor, 0.35);',

        '  vec2 vig = v_uv * (1.0 - v_uv);',
        '  col *= pow(vig.x * vig.y * 15.0, 0.25);',

        '  col *= 1.0 + (initNoise.g - 0.5) * 0.06;',

        '  col += vec3(0.012) * (1.0 - dist) * (1.0 - dist);',

        '  col = pow(clamp(col, 0.0, 1.0), vec3(0.90));',

        '  gl_FragColor = vec4(col, 1.0);',
        '}'
    ].join('\n');

    function initCRTCanvas(screen, imgEl) {
        var existing = screen.querySelector('.crt-webgl-canvas');
        if (existing) existing.remove();

        var canvas = document.createElement('canvas');
        canvas.className = 'crt-webgl-canvas';
        canvas.style.cssText = 'position:absolute;inset:0;width:100%;height:100%;z-index:19;pointer-events:none;display:block;';
        screen.appendChild(canvas);

        var gl = canvas.getContext('webgl') || canvas.getContext('experimental-webgl');
        if (!gl) return;

        function compile(type, src) {
            var s = gl.createShader(type);
            gl.shaderSource(s, src);
            gl.compileShader(s);
            if (!gl.getShaderParameter(s, gl.COMPILE_STATUS)) {
                console.error('[CRT shader]', gl.getShaderInfoLog(s));
            }
            return s;
        }

        var prog = gl.createProgram();
        gl.attachShader(prog, compile(gl.VERTEX_SHADER, VERT));
        gl.attachShader(prog, compile(gl.FRAGMENT_SHADER, FRAG));
        gl.linkProgram(prog);
        gl.useProgram(prog);

        var buf = gl.createBuffer();
        gl.bindBuffer(gl.ARRAY_BUFFER, buf);
        gl.bufferData(gl.ARRAY_BUFFER, new Float32Array([-1,-1, 1,-1, -1,1, 1,1]), gl.STATIC_DRAW);
        var aPos = gl.getAttribLocation(prog, 'a_pos');
        gl.enableVertexAttribArray(aPos);
        gl.vertexAttribPointer(aPos, 2, gl.FLOAT, false, 0, 0);

        var uTex     = gl.getUniformLocation(prog, 'u_tex');
        var uNoise   = gl.getUniformLocation(prog, 'u_noise');
        var uRes     = gl.getUniformLocation(prog, 'u_res');
        var uImgSize = gl.getUniformLocation(prog, 'u_imgSize');
        var uTime    = gl.getUniformLocation(prog, 'u_time');
        var uNoiseSc = gl.getUniformLocation(prog, 'u_noiseScale');

        var imgTex = gl.createTexture();
        gl.activeTexture(gl.TEXTURE0);
        gl.bindTexture(gl.TEXTURE_2D, imgTex);
        gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE);
        gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE);
        gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.LINEAR);
        gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.LINEAR);

        gl.activeTexture(gl.TEXTURE1);
        createNoiseTexture(gl);

        var texReady = false;
        function uploadImg() {
            if (!imgEl || !imgEl.complete || !imgEl.naturalWidth) return;
            try {
                gl.activeTexture(gl.TEXTURE0);
                gl.bindTexture(gl.TEXTURE_2D, imgTex);
                gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, gl.RGBA, gl.UNSIGNED_BYTE, imgEl);
                texReady = true;
            } catch(e) { console.error('[CRT] tex:', e); }
        }

        var lastW = 0, lastH = 0;
        function resize() {
            var w = screen.offsetWidth, h = screen.offsetHeight;
            if (w === lastW && h === lastH) return;
            lastW = w; lastH = h;
            canvas.width = w; canvas.height = h;
            gl.viewport(0, 0, w, h);
        }

        var raf;
        var t0 = performance.now();

        function render() {
            raf = requestAnimationFrame(render);
            if (!texReady) { uploadImg(); return; }
            resize();
            var t = (performance.now() - t0) / 1000;
            gl.uniform1i(uTex, 0);
            gl.uniform1i(uNoise, 1);
            gl.uniform2f(uRes, canvas.width, canvas.height);
            gl.uniform2f(uImgSize, imgEl.naturalWidth, imgEl.naturalHeight);
            gl.uniform1f(uTime, t);
            gl.uniform2f(uNoiseSc, canvas.width / 512.0, canvas.height / 512.0);
            gl.drawArrays(gl.TRIANGLE_STRIP, 0, 4);
        }

        if (imgEl.complete && imgEl.naturalWidth) { uploadImg(); }
        else { imgEl.addEventListener('load', uploadImg); }

        render();
        screen._crtCleanup = function () { cancelAnimationFrame(raf); };
    }

    function initAllCRTScreens(root) {
        var scope = root && root.querySelectorAll ? root : document;
        scope.querySelectorAll('.crt-page-monitor-screen').forEach(function (screen) {
            if (screen.getAttribute('data-crt-webgl') === '1') return;
            screen.setAttribute('data-crt-webgl', '1');
            var frame = screen.closest('.crt-page-monitor-frame');
            if (!frame) return;
            var imgEl = frame.querySelector('.crt-page-monitor-slice-img, .crt-page-monitor-image-base img');
            if (imgEl && imgEl.complete && imgEl.naturalWidth) {
                initCRTCanvas(screen, imgEl);
            } else if (imgEl) {
                imgEl.addEventListener('load', function () { initCRTCanvas(screen, imgEl); });
            } else {
                var obs = new MutationObserver(function () {
                    var img = frame.querySelector('.crt-page-monitor-slice-img');
                    if (!img) return;
                    obs.disconnect();
                    if (img.complete && img.naturalWidth) {
                        initCRTCanvas(screen, img);
                    } else {
                        img.addEventListener('load', function () { initCRTCanvas(screen, img); });
                    }
                });
                obs.observe(frame, { childList: true, subtree: true });
            }
        });
    }

    $(function () { initAllCRTScreens(document); });

    if (typeof mw !== 'undefined' && mw.hook) {
        mw.hook('wikipage.content').add(function ($c) {
            document.querySelectorAll('.crt-page-monitor-screen').forEach(function (s) {
                if (s._crtCleanup) s._crtCleanup();
                s.removeAttribute('data-crt-webgl');
            });
            initAllCRTScreens($c && $c[0] ? $c[0] : document);
        });
    }
})();

/* =========================================
Progress System UI
MediaWiki:Common.js controlled frontend
========================================= */
(function (mw, $) {
    'use strict';

    if (window.ProgressSystemWebUiInitialized) return;
    window.ProgressSystemWebUiInitialized = true;

    var api = null;

    function withApi(done, fail) {
        if (api) {
            done(api);
            return;
        }

        if (!mw.loader || typeof mw.loader.using !== 'function') {
            if (typeof fail === 'function') fail();
            return;
        }

        mw.loader.using(['mediawiki.api']).then(function () {
            api = new mw.Api();
            done(api);
        }, function () {
            if (typeof fail === 'function') fail();
        });
    }

    var inFlightPageIds = new Set();
    var handledPageIds = new Set();
    var notificationQueue = [];
    var notificationActive = false;
    var summaryRequested = false;
    var currentSummary = null;
    var pendingSummary = null;
    var pendingOptions = null;
    var visibilityBound = false;
    var barTimerA = null;
    var barTimerB = null;
    var barTimerC = null;

    function isLoggedIn() {
        return !!mw.config.get('wgUserName');
    }

    function getPageId() {
        var id = parseInt(mw.config.get('wgArticleId') || 0, 10);
        return Number.isFinite(id) ? id : 0;
    }

    function isRewardableClientSide() {
        if (!isLoggedIn()) return false;
        if (parseInt(mw.config.get('wgNamespaceNumber'), 10) !== 0) return false;
        if (mw.config.get('wgIsMainPage')) return false;
        if (getPageId() <= 0) return false;
        return true;
    }

    function getPanelHtml() {
        return '' +
            '<div id="progress-panel" class="profile-progress-block is-syncing" aria-live="polite" data-progress-state="syncing">' +
                '<div class="progress-title-row" hidden></div>' +
                '<div class="progress-level-row">' +
                    '<span class="progress-level-label">SYNC</span>' +
                    '<span class="progress-total-xp">— XP</span>' +
                '</div>' +
                '<div class="progress-xp-bar" aria-hidden="true">' +
                    '<div class="progress-xp-gain"></div>' +
                    '<div class="progress-xp-fill"></div>' +
                '</div>' +
                '<div class="progress-sub-row">' +
                    '<span class="progress-xp-next">SYNCING</span>' +
                    '<span class="progress-daily-xp">TODAY —</span>' +
                '</div>' +
                '<div class="progress-discovery-row">DISCOVERED —</div>' +
            '</div>';
    }

    function getDividerHtml() {
        return '<div id="profile-progress-divider" class="profile-divider" aria-hidden="true"></div>';
    }

    function setPanelSync($panel) {
        if (!$panel || !$panel.length) return;

        $panel.addClass('is-syncing').removeClass('is-max-level').attr('data-progress-state', 'syncing');
        $panel.find('.progress-title-row').text('').prop('hidden', true);
        $panel.find('.progress-level-label').text('SYNC');
        $panel.find('.progress-total-xp').text('— XP');
        $panel.find('.progress-xp-next').text('SYNCING');
        $panel.find('.progress-daily-xp').text('TODAY —');
        $panel.find('.progress-discovery-row').text('DISCOVERED —');
        $panel.find('.progress-xp-fill').css({ transition: 'none', width: '0%' });
        $panel.find('.progress-xp-gain').css({ transition: 'none', width: '0%', opacity: 0 });
    }

    function placePanel($panel) {
        var $right = $('#clbi-right-sidebar');
        if (!$right.length) return false;

        var $userBox = $right.children('.clbi-right-box').first();
        if (!$userBox.length) return false;

        var $buttonArea = $userBox.children('.clbi-right-content').first();
        var $oldFallback = $panel.closest('.progress-panel-fallback');

        if ($buttonArea.length) {
            var $divider = $('#profile-progress-divider');

            $panel.insertBefore($buttonArea);

            if (!$divider.length) {
                $divider = $(getDividerHtml());
            }

            $divider.insertAfter($panel);
        } else {
            $('#profile-progress-divider').remove();
            $userBox.append($panel);
        }

        if ($oldFallback.length && !$oldFallback.find('#progress-panel').length) {
            $oldFallback.remove();
        }

        return true;
    }

    function ensurePanel() {
        if (!isLoggedIn()) return $();

        var $right = $('#clbi-right-sidebar');
        if (!$right.length) return $();

        var $panel = $('#progress-panel');

        if (!$panel.length) {
            $panel = $(getPanelHtml());
            if (!placePanel($panel)) return $();
            setPanelSync($panel);
        } else {
            $panel.addClass('profile-progress-block');
            placePanel($panel);

            if (!currentSummary && $panel.attr('data-progress-state') !== 'syncing') {
                setPanelSync($panel);
            }
        }

        return $('#progress-panel');
    }

    function clampPercent(value) {
        return Math.max(0, Math.min(100, value || 0));
    }

    function hasXpNotification(items) {
        if (!items || !items.length) return false;
        return items.some(function (item) {
            return item && item.type === 'xp' && parseInt(item.amount || 0, 10) > 0;
        });
    }

    function clearBarTimers() {
        [barTimerA, barTimerB, barTimerC].forEach(function (timer) {
            if (timer) clearTimeout(timer);
        });
        barTimerA = null;
        barTimerB = null;
        barTimerC = null;
    }

    function setBarInstant($fill, $gain, percent) {
        clearBarTimers();
        percent = clampPercent(percent);
        $fill.css({ transition: 'none', width: percent + '%' });
        $gain.css({ transition: 'none', left: '0%', width: '0%', opacity: 0 });
        if ($fill[0]) $fill[0].offsetHeight;
        $fill.css({ transition: '' });
        $gain.css({ transition: '' });
    }

    function animateGain($fill, $gain, fromPercent, toPercent, levelChanged) {
        clearBarTimers();

        fromPercent = clampPercent(fromPercent);
        toPercent = clampPercent(toPercent);

        $fill.css({ transition: 'none', width: fromPercent + '%' });

        if (levelChanged) {
            var firstDelta = Math.max(0, 100 - fromPercent);

            $gain.css({
                transition: 'none',
                opacity: firstDelta > 0 ? 1 : 0,
                left: fromPercent + '%',
                width: firstDelta + '%'
            });

            if ($fill[0]) $fill[0].offsetHeight;

            barTimerA = setTimeout(function () {
                $fill.css({
                    transition: 'width 540ms cubic-bezier(0.22, 0.7, 0.18, 1)',
                    width: '100%'
                });
            }, 260);

            barTimerB = setTimeout(function () {
                $fill.css({ transition: 'none', width: '0%' });
                $gain.css({ transition: 'none', opacity: toPercent > 0 ? 1 : 0, left: '0%', width: toPercent + '%' });

                if ($fill[0]) $fill[0].offsetHeight;

                $fill.css({
                    transition: 'width 460ms cubic-bezier(0.22, 0.7, 0.18, 1)',
                    width: toPercent + '%'
                });
            }, 860);

            barTimerC = setTimeout(function () {
                $gain.css({ transition: 'opacity 180ms ease', opacity: 0 });
            }, 1380);

            return;
        }

        var delta = Math.max(0, toPercent - fromPercent);

        if (delta <= 0.15) {
            setBarInstant($fill, $gain, toPercent);
            return;
        }

        $gain.css({
            transition: 'none',
            opacity: 1,
            left: fromPercent + '%',
            width: delta + '%'
        });

        if ($fill[0]) $fill[0].offsetHeight;

        barTimerA = setTimeout(function () {
            $fill.css({
                transition: 'width 560ms cubic-bezier(0.22, 0.7, 0.18, 1)',
                width: toPercent + '%'
            });
        }, 260);

        barTimerB = setTimeout(function () {
            $gain.css({ transition: 'opacity 180ms ease', opacity: 0 });
        }, 940);
    }

    function updatePanel(summary, options) {
        if (!summary) return;

        options = options || {};

        var $panel = ensurePanel();
        if (!$panel.length) {
            pendingSummary = $.extend({}, summary);
            pendingOptions = $.extend({}, options);
            return;
        }

        var level = summary.level || 1;
        var totalXp = summary.totalXp || 0;
        var xpIntoLevel = summary.xpIntoLevel || 0;
        var xpForNext = summary.xpForNextLevel || 1;
        var percent = clampPercent(summary.progressPercent);
        var isMaxLevel = !!summary.isMaxLevel;
        var dailyXp = summary.dailyXp || 0;
        var discoveries = summary.discoveryCount || 0;
        var title = summary.equippedTitle || summary.title || '';

        $panel.removeClass('is-syncing').toggleClass('is-max-level', isMaxLevel).attr('data-progress-state', 'ready');
        $panel.find('.progress-level-label').text((isMaxLevel ? 'MAX ' : 'LVL ') + level);
        $panel.find('.progress-total-xp').text(totalXp + ' XP');
        $panel.find('.progress-xp-next').text(isMaxLevel ? 'MAX LEVEL' : (xpIntoLevel + ' / ' + xpForNext + ' TO NEXT'));
        $panel.find('.progress-daily-xp').text('TODAY ' + dailyXp + ' XP');
        $panel.find('.progress-discovery-row').text('DISCOVERED ' + discoveries);

        var $title = $panel.find('.progress-title-row');
        if (title) {
            $title.text(title).prop('hidden', false);
        } else {
            $title.text('').prop('hidden', true);
        }

        var $fill = $panel.find('.progress-xp-fill');
        var $gain = $panel.find('.progress-xp-gain');
        var animate = !!options.animateGain && currentSummary && totalXp > (currentSummary.totalXp || 0);

        if (animate) {
            animateGain(
                $fill,
                $gain,
                clampPercent(currentSummary.progressPercent),
                percent,
                level !== (currentSummary.level || 1)
            );
        } else {
            setBarInstant($fill, $gain, percent);
        }

        currentSummary = $.extend({}, summary);
        pendingSummary = null;
        pendingOptions = null;
    }

    function requestSummary() {
        if (!isLoggedIn()) return;
        if (summaryRequested) return;

        summaryRequested = true;

        withApi(function (api) {
            api.get({
                action: 'progress_summary',
                format: 'json',
                formatversion: 2
            }).then(function (data) {
                var payload = data && data.progress_summary;
                if (payload && payload.available && payload.summary) {
                    updatePanel(payload.summary, { animateGain: false });
                }
            }).always(function () {
                summaryRequested = false;
            });
        }, function () {
            summaryRequested = false;
        });
    }

    function queueNotifications(items) {
        if (!items || !items.length) return;

        items.forEach(function (item) {
            if (!item) return;
            notificationQueue.push(item);
        });

        showNextNotification();
    }

    function notificationText(item) {
        if (item.type === 'xp') {
            return '+' + (item.amount || 0) + ' XP · ' + (item.label || '문서 열람');
        }

        if (item.type === 'achievement') {
            var xp = item.amount ? ' · +' + item.amount + ' XP' : '';
            return '업적 달성 · ' + (item.label || '새 업적') + xp;
        }

        if (item.type === 'level') {
            return item.label || '레벨 상승';
        }

        return item.label || '보상 획득';
    }

    function showNextNotification() {
        if (notificationActive) return;
        if (!notificationQueue.length) return;

        notificationActive = true;
        var item = notificationQueue.shift();
        var $root = $('#progress-toast-root');

        if (!$root.length) {
            $('body').append('<div id="progress-toast-root"></div>');
            $root = $('#progress-toast-root');
        }

        var $toast = $('<div class="progress-toast"></div>');
        $toast.text(notificationText(item));
        $root.append($toast);

        requestAnimationFrame(function () {
            $toast.addClass('is-visible');
        });

        setTimeout(function () {
            $toast.removeClass('is-visible');
            setTimeout(function () {
                $toast.remove();
                notificationActive = false;
                showNextNotification();
            }, 220);
        }, 2600);
    }

    function applyPendingSummaryIfPossible() {
        if (!pendingSummary) return;
        updatePanel(pendingSummary, pendingOptions || { animateGain: false });
    }

    function handlePageView() {
        ensurePanel();
        applyPendingSummaryIfPossible();

        if (!isRewardableClientSide()) {
            requestSummary();
            return;
        }

        var pageId = getPageId();
        if (handledPageIds.has(pageId)) {
            requestSummary();
            return;
        }

        if (inFlightPageIds.has(pageId)) {
            requestSummary();
            return;
        }

        inFlightPageIds.add(pageId);

        withApi(function (api) {
            api.postWithToken('csrf', {
                action: 'progress_view',
                format: 'json',
                formatversion: 2,
                errorformat: 'plaintext',
                pageid: pageId
            }).then(function (data) {
                var payload = data && data.progress_view;
                if (!payload) return;

                handledPageIds.add(pageId);

                var animate = hasXpNotification(payload.notifications);

                if (payload.summary) {
                    updatePanel(payload.summary, { animateGain: animate });
                }

                if (payload.notifications && payload.notifications.length) {
                    queueNotifications(payload.notifications);
                }
            }).catch(function () {
                requestSummary();
            }).always(function () {
                inFlightPageIds.delete(pageId);
            });
        }, function () {
            inFlightPageIds.delete(pageId);
            requestSummary();
        });
    }

    function bindVisibilitySync() {
        if (visibilityBound) return;
        visibilityBound = true;

        document.addEventListener('visibilitychange', function () {
            if (document.visibilityState === 'visible') {
                requestSummary();
            }
        });
    }

    function bootProgressSystem(reason) {
        ensurePanel();
        applyPendingSummaryIfPossible();

        if (isRewardableClientSide()) {
            handlePageView();
        } else {
            requestSummary();
        }
    }

    function handleSpaPageView() {
        ensurePanel();
        applyPendingSummaryIfPossible();

        requestAnimationFrame(function () {
            setTimeout(function () {
                handlePageView();
            }, 80);
        });
    }

    function applySummary(summary, options) {
        updatePanel(summary, options || { animateGain: false });
    }

    window.ProgressSystemWebUi = {
        boot: bootProgressSystem,
        requestSummary: requestSummary,
        applySummary: applySummary,
        handlePageView: handlePageView,
        handleSpaPageView: handleSpaPageView,
        ensurePanel: ensurePanel
    };

    $(function () {
        bindVisibilitySync();
        bootProgressSystem('documentReady');
    });

    mw.hook('wikipage.content').add(function () {
        ensurePanel();
        applyPendingSummaryIfPossible();
    });
})(mediaWiki, jQuery);