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

.container {
    display: flex;
    gap: 20px;
    padding: 20px;
    background-color: white;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

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

.game-info {
    background-color: #f5f5f5;
    padding: 15px;
    border-radius: 5px;
    margin-bottom: 20px;
}

.score, .level, .lines {
    font-size: 1.2em;
    margin: 10px 0;
}

.controls {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.next-piece {
    text-align: center;
}

#nextCanvas {
    border: 1px solid #333;
    background-color: #000;
    margin-top: 10px;
}

.buttons {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

button {
    padding: 10px 20px;
    font-size: 1.1em;
    cursor: pointer;
    border: none;
    border-radius: 5px;
    background-color: #4CAF50;
    color: white;
    transition: background-color 0.3s;
}

button:hover {
    background-color: #45a049;
}

#pauseBtn {
    background-color: #f44336;
}

#pauseBtn:hover {
    background-color: #da190b;
}

.instructions {
    background-color: #f5f5f5;
    padding: 15px;
    border-radius: 5px;
}

.instructions h3 {
    margin-top: 0;
}

.instructions p {
    margin: 5px 0;
}