body {
    background-color: #2c3e50;
    color: white;
    font-family: 'Courier New', Courier, monospace;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
}

#game-container {
    text-align: center;
    background: rgba(0, 0, 0, 0.5);
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.5);
}

h1 {
    margin-top: 0;
    color: #2ecc71;
}

#score-board {
    font-size: 24px;
    margin-bottom: 10px;
}

canvas {
    background-color: #000;
    border: 2px solid #2ecc71;
    display: block;
    margin: 0 auto;
}

button {
    margin-top: 20px;
    padding: 10px 30px;
    font-size: 18px;
    background-color: #27ae60;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-family: inherit;
    transition: background 0.2s;
}

button:hover {
    background-color: #2ecc71;
}

#game-over-screen {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: rgba(0, 0, 0, 0.85);
    padding: 20px;
    border-radius: 10px;
    border: 2px solid #e74c3c;
    text-align: center;
    min-width: 200px;
    z-index: 100;
}

#game-over-screen h2 {
    color: #e74c3c;
    margin-top: 0;
}

.hidden {
    display: none !important;
}