* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background-color: black;
    height: 100vh;
    display: flex;
    justify-content: center;
    text-align: center;
    align-items: center;
    flex-direction: column;
    font-family: Arial, Helvetica, sans-serif;
    font-weight: bold;
}

.btn-container {
    margin: 20px 0;
}

#title {
    color: white;
}

.btn {
    border: none;
    height: 100px;
    width: 100px;
    margin: 0 10px;
    font-size: 4rem;
    background-color: hsl(200, 100%, 50%);
    border-radius: 50%;
    cursor: pointer;
    transition: background-color 0.25s;
    border: 3px solid white;
}

.btn:hover {
    background-color: hsl(200, 100%, 70%);
}

.btn:active {
    background-color: hsl(200, 100%, 80%);
}

#playerDisplay, #computerDisplay {
    color: white;
    text-transform: uppercase;
    font-size: 1.4rem;
}

#resultDisplay {
    color: white;
    margin: 20px 0;
    text-transform: uppercase;
    font-size: 3rem;
}

#playerScoreDisplay, #computerScoreDisplay {
    color: white;
    font-size: 1.4rem;
}

#resultDisplay.greenText, #player {
    color: lightgreen;
}

#resultDisplay.redText, #computer {
    color: red;
}