body {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background-color: #222;
    margin: 0;
    font-family: sans-serif;
    color: white;
    padding: 20px; 
    box-sizing: border-box; 
}

.game-layout {
    display: flex;
    gap: 40px; 
    flex-wrap: wrap; 
    justify-content: center;
    align-items: flex-start; 
}

.game-area {
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
}

#gameCanvas {
    border: 2px solid #fff;
    background-color: #000;
    display: block;
}

.score-display {
    margin-top: 20px;
    font-size: 1.5em;
}

.sidebar {
    display: flex;
    flex-direction: column;
    gap: 20px; 
    min-width: 200px; 
}

.controls-display {
    background-color: #333;
    padding: 15px;
    border-radius: 8px;
    border: 1px solid #555;
}

.controls-display h3 {
    margin-top: 0;
    text-align: center;
    color: #00FFFF; 
}

.controls-display ul {
    list-style: none;
    padding: 0;
    margin: 0;
    text-align: left;
}

.controls-display li {
    margin-bottom: 8px;
}

.controls-display .key {
    display: inline-block;
    width: 30px; 
    text-align: center;
    font-weight: bold;
    margin-right: 10px;
    background-color: #555;
    padding: 2px 5px;
    border-radius: 4px;
    font-family: monospace;
}

#restartButton {
    padding: 10px 20px;
    font-size: 1.2em;
    background-color: #4CAF50; 
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

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