html {
    box-sizing: border-box;
    height: 100%;
}

body {
    margin: 0;
    background: hsl(185.3, 45.6%, 24.5%);
}

#title {
    color: rgb(255, 255, 255);
    font-family: Helvetica, sans-serif;
    text-align: center;
}

#container {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 5px;
    width: 80vw;
    background: rgb(255, 221, 159);
    border-radius: 15px;
    margin: auto;
    padding: 5px;
}

.game-cards {
    display: flex;
    flex-direction: column;
    background-color: whitesmoke;
    border-radius: 15px;
    text-align: center;
    border: 2px solid #000;
}

.game-cards img {
    height: 265px;
    width: 265px;
    border-radius: 15px;
}

.card-btn {
    border: 2px solid goldenrod;
    border-radius: 3px;
    background-color: #153291;
    color: whitesmoke;
    width: 75%;
    height: 30px;
    margin: 5px;
    font-size: 23px;
    font-family: monospace, Arial, Helvetica, sans-serif;
    cursor: pointer;
}

.card-btn:hover {
    border-color: hsl(43, 74%, 55%);
    background-color: hsl(226, 75%, 39%);
    color: hsl(0, 0%, 100%);
}

.card-btn:active {
    border-color: hsl(43, 74%, 45%);
    background-color: hsl(226, 75%, 25%);
    color: hsl(0, 0%, 92%);
}

@media (max-width: 600px) {
    #container {
        width: 90%;
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .card-btn {
        font-size: 18px;
    }

    .game-cards img {
        height: 155px;
        width: 155px;
    }
}