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

.container {
    text-align: center;
    background-color: white;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    display: flex;
    flex-direction: column;
    align-items: center;
}

h1 {
    color: #333;
    margin-bottom: 20px;
}

.game-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    font-size: 18px;
    font-weight: bold;
    gap: 20px;
}

button {
    background-color: #4CAF50;
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 5px;
    cursor: pointer;
    font-size: 16px;
}

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

#game-board {
    display: grid;
    grid-template-columns: repeat(10, 30px);
    grid-template-rows: repeat(20, 30px);
    gap: 1px;
    margin: 0 auto;
    border: 2px solid #333;
    background-color: #000;
}

.cell {
    width: 30px;
    height: 30px;
    background-color: #000;
    border: 1px solid #333;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 20px;
    color: white;
}

.next-piece {
    margin-top: 20px;
}

#next-board {
    display: grid;
    grid-template-columns: repeat(4, 20px);
    grid-template-rows: repeat(4, 20px);
    gap: 1px;
    margin: 0 auto;
    border: 1px solid #333;
    background-color: #000;
}

.next-cell {
    width: 20px;
    height: 20px;
    background-color: #000;
    border: 1px solid #333;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 16px;
    color: white;
}