@keyframes tilt {
        0%, 100% {
            transform: translate(-50%, -50%) rotate(-3deg);
        }
        50% {
            transform: translate(-50%, -50%) rotate(3deg);
        }
        }
        @keyframes item-pulse {
        0%, 100% {
            transform: translate(-50%, -50%) scale(1);
        }
        50% {
            transform: translate(-50%, -50%) scale(1.3);
        }
        }

        .circle-item.pulse {
        animation: item-pulse 0.6s ease-in-out forwards;
        }

        body{
            padding:0;
            margin:0;
            background-color:black;
        }

        #bg_video{
            width:100%;
            height: 100%;
            position: absolute;
            object-fit:cover;
            top: 0;
            left: 0;
            user-select: none;
        }
        
        #transitionLayer{
            width:100%;
            height:100%;
            opacity:1;
            position: absolute;
            background-color:black;
            transition-duration:0.5s;
            transition-property: opacity;
            pointer-events: none;
        }

        #circle-container {
            position: absolute;
            width: 50vw;
            height: 50vw;
            max-height:800px;
            max-width:800px;
            top: 50%;
            left: 50%;
            border-radius: 50%;
            overflow:visible;      
            transform: translate(-50%, -50%);
            animation:
                /*pulse 5.2s ease-in-out infinite,*/
                tilt 6.7s ease-in-out infinite;      
        }

        .circle-item {
            overflow: visible;
            cursor:pointer;
            user-select: none;
            position: absolute;
            width:150px;
            height:150px;
            background-size:contain;
            background-position:center center;
            background-repeat:no-repeat;
            border-radius: 50%;
            transform: translate(-50%, -50%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-weight: bold;
            font-family: Arial, sans-serif;
            transition-duration:.75s;
            transition-property: all;
        }
        
        #logo {
            width: 90%;
            margin-top: 40px;
            max-width: 700px;
            height: 50%;
            background-image: url(logo.png);
            background-size: contain;
            background-position: center;
            background-repeat: no-repeat;
            margin-bottom: 0rem;
            flex-shrink: 0;
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            margin-left: 20px;  
        }
        #video-overlay{
            position: fixed;
            top: 0; left: 0; width: 100vw; height: 100vh;
            background: rgba(0, 0, 0, 0.75);
            display: flex;
            justify-content: center;
            align-items: center;
            opacity: 0;
            visibility: hidden;
            transition: opacity 0.4s ease;
            z-index: 1000;
        }
        #close-video{
            position: absolute; 
            top: 20px; 
            right: 20px;
            font-size: 24px; 
            background: transparent;
            color: white; 
            border: none; 
            cursor: pointer;
        }

        @media screen and (orientation: portrait){
            #circle-container {
            position: absolute;
            width: 90vw;
            height: 90vw;
            max-height:400px;
            max-width:400px;
            top: 50%;
            left: 50%;
            border-radius: 50%;
            overflow:visible;      
            transform: translate(-50%, -50%);
            animation:
                tilt 6.7s ease-in-out infinite;      
            }
            

        .circle-item {
            overflow: visible;
            cursor:pointer;
            user-select: none;
            position: absolute;
            width:100px;
            height:100px;
            background-size:contain;
            background-position:center center;
            background-repeat:no-repeat;
            border-radius: 50%;
            transform: translate(-50%, -50%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-weight: bold;
            font-family: Arial, sans-serif;
            transition-duration:.75s;
            transition-property: all;
        }
        
        #logo {
        width: 50%;
            margin-top: 30px;
            max-width: unset;
            height: 50%;
            background-image: url(logo.png);
            background-size: contain;
            background-position: center;
            background-repeat: no-repeat;
            margin-bottom: 0rem;
            flex-shrink: 0;
            position: absolute;
            top: 49%;
            left: 50%;
            transform: translate(-50%, -50%);
            margin-left: 3px;
        }
        #bg_video {
            width: 100%;
            height: 100%;
            position: absolute;
            object-fit: fill;
            object-position: center;
            top: 0;
            left: 0;
            user-select: none;
        }
    }