* {
    padding: 0;
    margin: 0;
}

body {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    background-color: green;
    font-family: Arial, sans-serif;
}

.game-container {
    text-align: center;
}

h1 {
    color: white;
    margin-bottom: 20px;
}

.container {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 10px;
    justify-content: center;
    margin: 20px 0;
    background: rgb(59, 59, 59);
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.5);
}

.box {
    border: 3px solid #666;
    background-color: rgb(122, 122, 122);
    color: white;
    border-radius: .5em;
    padding: 40px;
    cursor: move;
    text-align: center;
    font-size: 30px;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100px;
}

.box.over {
    border: 3px dotted #666;
}

#reset-button {
    margin: 20px;
    padding: 10px 20px;
    font-size: 16px;
}

#message {
    color: yellow;
    font-size: 24px;
    margin-top: 20px;
}

.hidden {
    display: none;
}