* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: Arial, Helvetica, sans-serif;
}

body {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background-color: #f0f0f0;
}

.game-container {
    background-color: white;
    border-radius: 10px;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.1);
    padding: 20px;
    text-align: center;
    max-width: 500px;
}

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

.game-info {
    display: flex;
    justify-content: space-between;
    margin-bottom: 15px;
    font-size: 18px;
    font-weight: bold;
}

#game-canvas {
    background-color: #222;
    border-radius: 5px;
    margin-bottom: 15px;
}

.controls {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 20px;
}

button {
    padding: 10px 20px;
    font-size: 16px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s;
}

#start-btn {
    background-color: #4CAF50;
    color: white;
}

#restart-btn {
    background-color: #f44336;
    color: white;
}

button:hover {
    opacity: 0.9;
}

button:active {
    transform: scale(0.98);
}

.instructions {
    text-align: left;
    border-top: 1px solid #eee;
    padding-top: 15px;
}

.instructions h2 {
    font-size: 18px;
    margin-bottom: 10px;
    color: #333;
}

.instructions p {
    margin-bottom: 8px;
    color: #666;
}