body { 
    margin: 0; 
    background-color: #111; 
    color: #fff; 
    display: flex; 
    justify-content: center; 
    align-items: center; 
    min-height: 100vh; 
    font-family: 'Courier New', Courier, monospace; 
}

#game-container {
    display: flex;
    flex-direction: column;
    align-items: center;
}

#game-ui {
    display: flex;
    justify-content: space-between;
    width: 800px;
    margin-bottom: 10px;
    text-shadow: 2px 2px 0px #000;
}

h2 { margin: 0; font-size: 1.2rem; color: #ffcc00; }

canvas { 
    background-color: #1e3c72; 
    background-image: linear-gradient(to bottom, #1e3c72 0%, #2a5298 100%);
    border: 4px solid #fff; 
    box-shadow: 0px 0px 30px rgba(0, 150, 255, 0.4);
    border-radius: 4px;
}

#leaderboard-container {
    width: 800px;
    margin-top: 20px;
    background: #222;
    padding: 15px;
    border: 2px solid #444;
    border-radius: 4px;
    box-sizing: border-box;
}

#leaderboard-container h3 {
    margin-top: 0;
    color: #00ffcc;
    text-align: center;
}

#leaderboardList {
    list-style-type: none;
    padding: 0;
    margin: 0;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}

#leaderboardList li {
    background: #333;
    padding: 8px 15px;
    display: flex;
    justify-content: space-between;
    border-radius: 3px;
    font-weight: bold;
}