* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background: #1a1a1a;
    font-family: 'Courier New', Courier, monospace;
}

.game-container {
    background: #2a2a2a;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.3);
}

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

.score-board {
    color: #fff;
    font-size: 1.2rem;
    margin-bottom: 20px;
    display: flex;
    justify-content: space-between;
}

.controls {
    margin-top: 20px;
    text-align: center;
}

button {
    background: #4a4a4a;
    border: none;
    color: #fff;
    padding: 10px 20px;
    border-radius: 5px;
    cursor: pointer;
    margin: 5px;
    font-family: inherit;
}

button:hover {
    background: #5a5a5a;
}

.mobile-controls {
    display: none;
    flex-direction: column;
    align-items: center;
    margin-top: 20px;
}

.horizontal-controls {
    display: flex;
    gap: 20px;
    margin: 10px 0;
}

@media (max-width: 768px) {
    .mobile-controls {
        display: flex;
    }
}