* {
    box-sizing: border-box;
}

body {
    margin: 0;
    background-color: #0193f5;
    color: ghostwhite;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100vh;
}

h1 {
    margin-bottom: 30px;
}

canvas {
    background-color: white;
    border-radius: 5px;
    width: 60%;
    height: 70%;
    position: relative;
}

.score {
    width: 60%;
    display: flex;
    justify-content: space-between;
}

span {
    color: black;
    padding: 10px 20px;
    font-size: 1.3em;
}

.btn {
    padding: 8px 15px;
    border-radius: 5px;
    border: 0;
    background-color: black;
    color: whitesmoke;
}

.btn:focus {
    outline: none;
}

.btn:active {
    transform: scale(0.96);
}

.btn:hover {
    background-color: #222222;
}

.rules-btn {
    position: absolute;
    left: 20px;
    top: 20px;
}

.rules {
    z-index: 2;
    position: absolute;
    top: 0;
    left: 0;
    transform: translateX(-100%);
    width: 360px;
    background-color: #333333;
    padding: 30px;
    min-height: 100vh;
    line-height: 1.12;
    transition: transform 1s ease-in-out;
}

.rules h2 {
    color: rgb(240, 203, 135);
}

.rules p {
    font-size: 1.1em;
}

.rules .btn {
    margin-top: 50px;
}

.rules.show {
    transform: translateX(0);
}

.button-container {
    padding: 10px 20px 0 20px;
    width: 60%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.button-container button {
    padding: 15px 10px;
}

button {
    cursor: pointer;
}

.overlay {
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
    display: none;
    align-items: center;;
    justify-content: center;
    background-color: rgba(0, 0, 0, 0.9);
}

.overlay.show {
    display: flex;
}

.container {
    background-color: greenyellow;
    padding: 10px 20px;
    border-radius: 10px;
    color: black;
    text-align: center;
}

.container h1 {
    color: red;
    padding-left: 30px;
    padding-right: 30px; 
}

.container span {
    font-size: 2em;
    color: blueviolet;
}

.container p {
    font-size: 1.2em;
}


@media (max-width: 700px) {
    canvas {
        width: 90%;
    }
    .score {
        width: 90%;
    }
    .button-container {
        width: 90%;
    }
}