#game-container {
    width: 800px;
    height: 600px;
    margin: 0 auto;
    border: 4px solid #8B4513;
    box-shadow: 0 0 20px rgba(139, 69, 19, 0.7);
}

#game-canvas {
    background-color: #222;
    display: block;
}

.health-bar, .mana-bar {
    transition: width 0.3s;
    box-shadow: 0 0 5px currentColor;
}