$(function() {
  // Navbar scroll
  $(window).on('scroll', function() {
    if ($(this).scrollTop() > 60) $('#navbar').addClass('scrolled');
    else $('#navbar').removeClass('scrolled');
  });

  // Hero animation on load
  setTimeout(function() {
    $('#heroContent').addClass('visible');
    $('#heroBg').addClass('loaded');
  }, 200);

  // Scroll animations
  function checkVisible() {
    $('.fact, [data-animate]').each(function() {
      var el = $(this);
      var top = el.offset().top;
      var windowBottom = $(window).scrollTop() + $(window).height();
      if (windowBottom > top + 60) {
        el.addClass('visible');
        el.css({opacity: 1, transform: 'translateY(0)'});
      }
    });
  }
  $('[data-animate]').css({opacity: 0, transform: 'translateY(30px)', transition: 'opacity 0.8s ease, transform 0.8s ease'});
  $(window).on('scroll', checkVisible);
  checkVisible();

  // Floor accordion
  $('.floor-header').on('click', function() {
    var item = $(this).closest('.floor-item');
    var isOpen = item.hasClass('open');
    $('.floor-item').removeClass('open');
    $('.floor-body').slideUp(300);
    if (!isOpen) {
      item.addClass('open');
      item.find('.floor-body').slideDown(300);
    }
  });

  // Lightbox – gallery grid items
  $(document).on('click', '.grid-item', function() {
    var src = $(this).data('img') || $(this).find('img').attr('src');
    $('#lightboxImg').attr('src', src);
    $('#lightbox').addClass('open');
    $('body').css('overflow', 'hidden');
  });
  $('#lightboxClose, #lightbox').on('click', function(e) {
    if (e.target === this) {
      $('#lightbox').removeClass('open');
      $('body').css('overflow', '');
    }
  });
  $(document).on('keydown', function(e) {
    if (e.key === 'Escape') { $('#lightbox').removeClass('open'); $('body').css('overflow', ''); }
  });

    // Form submit
  $('#contactForm').on('submit', function(e) {
    e.preventDefault();
    var btn = $(this).find('.btn-submit');
    btn.text('Wird gesendet...').prop('disabled', true);
    setTimeout(function() {
      $('#contactForm').hide();
      $('#formSuccess').fadeIn(400);
    }, 1200);
  });
});