(function(){if(localStorage.getItem('cookiesAccepted'))document.getElementById('cookieBanner').style.display='none'})();
function acceptCookies(){localStorage.setItem('cookiesAccepted','true');document.getElementById('cookieBanner').style.display='none'}
(function(){
  var nav=document.getElementById('siteNav');
  var toggle=document.getElementById('navToggle');
  if(nav&&toggle){
    toggle.addEventListener('click',function(){
      var open=nav.classList.toggle('open');
      toggle.setAttribute('aria-expanded',open);
    });
    nav.querySelectorAll('.nav-links a').forEach(function(link){link.addEventListener('click',function(){nav.classList.remove('open');toggle.setAttribute('aria-expanded','false')});
    });
  }

  document.querySelectorAll('.agenda-meta').forEach(function(meta){
    if(!meta.querySelector('.agenda-time')){
      meta.classList.add('no-time');
      var block=meta.closest('.agenda-block');
      if(block)block.classList.add('no-time');
    }
  });

  var scrollerContainer=document.getElementById('speakerScrollerContainer');
  var scrollerTrack=document.getElementById('speakerScrollerTrack');
  if(scrollerContainer&&scrollerTrack){
    var autoScrollInterval;
    var isDragging=false;
    var hasMoved=false;
    var startX;
    var scrollLeftStart;
    var scrollDirection=1;

    function autoScroll(){
      if(isDragging)return;
      var currentScroll=scrollerContainer.scrollLeft;
      var maxScroll=scrollerTrack.scrollWidth-scrollerContainer.clientWidth;
      if(maxScroll<=0)return;
      if(currentScroll>=maxScroll-1){scrollDirection=-1;}else if(currentScroll<=1){scrollDirection=1;}
      scrollerContainer.scrollLeft=currentScroll+(1*scrollDirection);
    }

    scrollerContainer.addEventListener('mousedown',function(e){
      e.preventDefault();
      isDragging=true;
      hasMoved=false;
      scrollerContainer.style.cursor='grabbing';
      scrollerContainer.style.userSelect='none';
      startX=e.pageX-scrollerContainer.offsetLeft;
      scrollLeftStart=scrollerContainer.scrollLeft;
    });

    scrollerContainer.addEventListener('mousemove',function(e){
      if(!isDragging)return;
      e.preventDefault();
      var x=e.pageX-scrollerContainer.offsetLeft;
      var walk=(x-startX)*3;
      var distance=Math.abs(walk);
      if(distance>5){hasMoved=true;}
      scrollerContainer.scrollLeft=scrollLeftStart-walk;
    });

    scrollerContainer.addEventListener('mouseup',function(){
      isDragging=false;
      scrollerContainer.style.cursor='grab';
    });

    scrollerContainer.addEventListener('click',function(e){
      if(hasMoved){
        e.preventDefault();
        e.stopPropagation();
      }
    },true);

    scrollerContainer.addEventListener('mouseleave',function(){
      if(isDragging){
        isDragging=false;
        scrollerContainer.style.cursor='grab';
      }
    });

    var touchStartX=0;
    var touchMoved=false;

    scrollerContainer.addEventListener('touchstart',function(e){
      touchStartX=e.touches[0].clientX;
      touchMoved=false;
    },{passive:true});

    scrollerContainer.addEventListener('touchmove',function(e){
      var touchX=e.touches[0].clientX;
      if(Math.abs(touchX-touchStartX)>10){touchMoved=true;}
    },{passive:true});

    scrollerContainer.addEventListener('touchend',function(){
      setTimeout(function(){touchMoved=false;},300);
    },{passive:true});

    scrollerContainer.querySelectorAll('a').forEach(function(link){
      link.addEventListener('click',function(e){
        if(touchMoved){
          e.preventDefault();
          e.stopPropagation();
        }
      });
    });

    scrollerContainer.style.cursor='grab';
    autoScrollInterval=setInterval(autoScroll,30);
  }

  var galleryItems=document.querySelectorAll('.gallery-item');
  var lightbox=document.getElementById('lightbox');
  var lightboxImage=document.getElementById('lightboxImage');
  if(galleryItems.length&&lightbox&&lightboxImage){
    var sources=[];
    var current=0;
    galleryItems.forEach(function(item,i){
      sources.push(item.getAttribute('href'));
      item.addEventListener('click',function(e){
        e.preventDefault();
        current=i;
        lightboxImage.src=sources[current];
        lightbox.classList.add('open');
      });
    });
    function showImage(){lightboxImage.src=sources[current]}
    function closeLightbox(){lightbox.classList.remove('open')}
    function showPrev(){current=(current-1+sources.length)%sources.length;showImage()}
    function showNext(){current=(current+1)%sources.length;showImage()}
    document.getElementById('lightboxClose').addEventListener('click',closeLightbox);
    lightbox.addEventListener('click',function(e){if(e.target===lightbox)closeLightbox()});
    document.getElementById('lightboxPrev').addEventListener('click',showPrev);
    document.getElementById('lightboxNext').addEventListener('click',showNext);
    document.addEventListener('keydown',function(e){
      if(!lightbox.classList.contains('open'))return;
      if(e.key==='Escape')closeLightbox();
      if(e.key==='ArrowLeft')showPrev();
      if(e.key==='ArrowRight')showNext();
    });

    var lightboxTouchStartX=0;
    var lightboxTouchStartY=0;
    lightbox.addEventListener('touchstart',function(e){
      lightboxTouchStartX=e.touches[0].clientX;
      lightboxTouchStartY=e.touches[0].clientY;
    },{passive:true});
    lightbox.addEventListener('touchend',function(e){
      var dx=e.changedTouches[0].clientX-lightboxTouchStartX;
      var dy=e.changedTouches[0].clientY-lightboxTouchStartY;
      if(Math.abs(dx)>50&&Math.abs(dx)>Math.abs(dy)){
        if(dx<0)showNext();
        else showPrev();
      }
    },{passive:true});
  }
})();