body {
    margin: 0;
    padding: 0;
    overflow: hidden;
}

#container {
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
    top: 25vh;
    animation: pulse-container 20s ease-in-out infinite;
}

.row {
    display: flex;
}

.cell {
    width: 6vh;
    height: 6vh;
    background-size: cover;
    background-position: center;
    filter: opacity(0.5);
    transform-origin: 50% 50%;
    transform: scale(1.01);
}

.full {
    filter: brightness(0.3);
}

#overlay-blur {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: transparent;
    backdrop-filter: contrast(2) blur(5px);
    opacity: 1;
    animation: pulse-overlay 20s ease-in-out infinite;
}

@keyframes pulse-overlay {
    0% {
        opacity: 1;
    }

    40%,
    60% {
        opacity: 0;
    }

    100% {
        opacity: 1;
    }
}

@keyframes pulse-container {
    0% {
        transform: scale(0.3);
    }

    50% {
        transform: scale(5);
    }

    100% {
        transform: scale(0.3);
    }
}

@media screen and (max-width: 800px) {
    #container {
        top: 0;
    }

    .cell {
        width: 12vw;
        height: 12vw;
    }


    #overlay-blur {
        backdrop-filter: contrast(1.5) blur(2px);
    }

    @keyframes pulse-container {
        0% {
            transform: scale(0.25);
        }

        50% {
            transform: scale(2.5);
        }

        100% {
            transform: scale(0.25);
        }
    }
}