body {
    background-color: #202028;
    color: #fff;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
}

#game-container {
    display: flex;
    flex-direction: row;
    gap: 20px;
    padding: 20px;
    background-color: #333;
    border-radius: 10px;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.5);
}

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

#side-panel {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    min-width: 150px;
}

.stat-box {
    margin-bottom: 20px;
    padding: 10px;
    background-color: #444;
    border-radius: 5px;
    text-align: center;
}

.stat-box h2 {
    margin: 0 0 10px 0;
    font-size: 1.2rem;
    color: #aaa;
}

#score, #lines {
    font-size: 1.5rem;
    font-weight: bold;
}

#start-btn {
    padding: 10px 20px;
    font-size: 1rem;
    font-weight: bold;
    cursor: pointer;
    background-color: #4caf50;
    border: none;
    color: white;
    border-radius: 5px;
    transition: background-color 0.2s;
}

#start-btn:hover {
    background-color: #45a049;
}

#start-btn:active {
    transform: translateY(2px);
}