* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: Arial, Helvetica, sans-serif;
}

body {
    display: grid;
    justify-content: center;
    align-items: center;
    height: 100vh;
    overflow: hidden;
    background: linear-gradient(-45deg, #ee7752, #e73c7e, #23a6d5, #23d5ab);
    background-size: 400% 400%;
    animation: gradient 15s ease infinite;
    height: 100vh;
}

@keyframes gradient {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.ball {
    width: 500px;
    height: 500px;
    background-color: black;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.whitesurface {
    width: 140px;
    height: 140px;
    background-color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

#response {
    font-size: 18px;
    color: black;
    text-align: center;
    padding: 10px;
    word-wrap: break-word;
}

.inputfield {
    display: flex;
    justify-content: center;
}

input {
    position: absolute;
    top: 65vh;
    padding: 15px 50px;
    font-size: 15px;
    border-radius: 30px;
    text-align: left;
}

button {
    margin: auto;
    position: absolute;
    top: 75vh;
    padding: 10px 80px;
    font-size: 20px;
    border-radius: 30px;
    background-color: black;
    color: white;
}

button:hover {
    background-color: rgb(0, 0, 0);
}