body {
    font-family: 'Arial', sans-serif;
    background-color: #2c3e50;
    color: #ecf0f1;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
}

.container {
    text-align: center;
    width: 100%;
    max-width: 500px;
    padding: 20px;
}

h1 {
    margin-bottom: 20px;
}

#myBoard {
    width: 100%;
    margin: 0 auto;
}

.controls {
    margin-bottom: 15px;
}

button {
    background-color: #e74c3c;
    border: none;
    color: white;
    padding: 10px 20px;
    text-align: center;
    text-decoration: none;
    display: inline-block;
    font-size: 16px;
    margin: 4px 2px;
    cursor: pointer;
    border-radius: 4px;
    transition: background-color 0.3s;
}

button#flipBtn {
    background-color: #3498db;
}

button:hover {
    opacity: 0.9;
}

#status {
    margin-bottom: 10px;
    font-weight: bold;
}

.instructions {
    margin-top: 20px;
    font-size: 0.9em;
    color: #bdc3c7;
}