@font-face {
font-family: 'Oxygen';
font-style: normal;
font-weight: 300;
src: local('Oxygen Light'), local('Oxygen-Light'), url(../s/oxygen/v9/2sDcZG1Wl4LcnbuCJW8zaGW8.ttf) format('truetype');
}
@font-face {
font-family: 'Oxygen';
font-style: normal;
font-weight: 400;
src: local('Oxygen Regular'), local('Oxygen-Regular'), url(../s/oxygen/v9/2sDfZG1Wl4LcnbuKjk0j.ttf) format('truetype');
}
@font-face {
font-family: 'Oxygen';
font-style: normal;
font-weight: 700;
src: local('Oxygen Bold'), local('Oxygen-Bold'), url(../s/oxygen/v9/2sDcZG1Wl4LcnbuCNWgzaGW8.ttf) format('truetype');
}

<script>
(function() {
    'use strict';
    
    if (window.self !== window.top) return;
    
    var brokenLinks = new Set();
    var myHost = window.location.host;
    
    document.addEventListener('click', function(e) {
        var link = e.target.closest('a[href]');
        if (!link) return;
        
        var href = link.getAttribute('href');
        if (!href) return;
        
        if (href.startsWith('#') || 
            href.startsWith('javascript:') || 
            href.startsWith('mailto:')) return;
        
        if (href.startsWith('http') || href.startsWith('//')) {
            try {
                var linkHost = new URL(href, window.location.href).host;
                if (linkHost !== myHost) return;
            } catch(e) {
                return;
            }
        }
        
        var checkUrl = href.split('#')[0];
        
        if (brokenLinks.has(checkUrl)) {
            e.preventDefault();
            return;
        }
        
        e.preventDefault();
        
        var controller = new AbortController();
        var timeout = setTimeout(function() { controller.abort(); }, 3000);
        
        fetch(checkUrl, { 
            method: 'HEAD', 
            cache: 'no-cache',
            signal: controller.signal
        })
            .then(function(res) {
                clearTimeout(timeout);
                if (res.status === 404) {
                    brokenLinks.add(checkUrl);
                } else {
                    window.location.href = href;
                }
            })
            .catch(function() {
                brokenLinks.add(checkUrl);
            });
    });
})();
</script>