/* Part 1: Keyframe animation for ball bounce */
@keyframes bounce {
    0% {
        transform: translateY(-200px);
    }
    50% {
        transform: translateY(30px);
    }
    100% {
        transform: translateY(-200px);
    }
}

/* Part 2: Keyframe animation for shadow change */
@keyframes shadowChange {
    0% {
        box-shadow: 0px 10px 10px rgba(0, 0, 0, 0.5);
        opacity: 0.5;
        transform: scale(1);
    }
    50% {
        box-shadow: 0px 3px 3px rgba(0, 0, 0, 0.6);
        opacity: 0.6;
        transform: scale(0.5);
    }
    100% {
        box-shadow: 0px 10px 10px rgba(0, 0, 0, 0.5);
        opacity: 0.5;
        transform: scale(1);
    }
}

/* Styling for ball and shadow */
#ball {
    display: block;
    height: 150px;
    width: 150px;
    border-radius: 50%;
    background: #fd6c2d;
    z-index: 1;
    animation: bounce 0.45s cubic-bezier(0.42, 0, 0.7, 0.5) infinite alternate;
    position: absolute;
    top: calc(50% - 75px); /* Center vertically */
    left: calc(50% - 75px); /* Center horizontally */
}

#shadow {
    height: 50px;
    width: 160px;
    background: black;
    border-radius: 50%;
    animation: shadowChange 0.45s cubic-bezier(0.42, 0, 0.7, 0.5) infinite alternate;
    position: absolute;
    top: calc(50% + 75px); /* Position below the ball vertically */
    left: calc(50% - 80px); /* Center horizontally with the ball */
}

body, html {
    font-family: "Open Sans", "Helvetica Neue", Helvetica, Arial, sans-serif;
    margin: 0px;
    height: 100%;
    width: 100%;
    background: #f7f5f2;
    position: relative;
}