body {
    font-family: sans-serif;
    background-color: #f0f0f0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100vh;
    margin: 0;
}

h1 {
    margin-bottom: 20px;
}

.container {
    display: flex;
    align-items: flex-start;
    border: 5px solid #333;
    padding: 10px;
    background-color: #e0e0e0;
}

canvas#board {
    border: 2px solid #333;
    background-color: #000;
}

.side-panel {
    margin-left: 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.side-panel div {
    margin-bottom: 20px;
    text-align: center;
}

.side-panel h2 {
    margin: 0 0 10px 0;
    font-size: 1.2em;
}

.side-panel p {
    margin: 0;
    font-size: 1.5em;
    font-weight: bold;
}

canvas#next1, canvas#next2 {
    border: 2px solid #333;
    background-color: #000;
    margin-bottom: 10px;
}

#start-btn {
    padding: 10px 20px;
    font-size: 1.2em;
    cursor: pointer;
    border: 2px solid #333;
    background-color: #fff;
}

#start-btn:hover {
    background-color: #ddd;
}