.menu-scroll{position:fixed;top:0;width:100%;z-index:9999;transform:translateY(-100%);transition:transform 0.3s ease}.menu-scroll.visible{transform:translateY(0)}html,body{height:100%;scroll-snap-type:y mandatory;scroll-behavior:smooth}.snap-section{scroll-snap-align:start;scroll-margin-top:50px}.intro-video{position:fixed;top:0;left:0;width:100%;height:100%;z-index:9999;transition:opacity 0.8s ease}.intro-video.hide{opacity:0;pointer-events:none}