body {
    font-family: 'Press Start 2P', cursive, Arial, sans-serif; /* A classic arcade font */
    background-color: #1a1a2e; /* Dark background */
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    margin: 0;
    overflow: hidden; /* Prevent scrollbars */
    color: #eee;
}

/* Optional: Import a pixel-style font */
@import url('https://fonts.googleapis.com/css2?family=Press+Start+2P&display=swap');

.game-wrapper {
    position: relative;
    border: 4px solid #00ff00; /* Neon green border */
    box-shadow: 0 0 20px rgba(0, 255, 0, 0.7); /* Green glow */
    border-radius: 5px;
}

#gameCanvas {
    background-color: #000; /* Black background for the game area */
    display: block; /* Remove extra space below canvas */
}

/* --- Overlay Screens (Start/Game Over) --- */
.overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.9);
    color: white;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    z-index: 10;
}

.overlay h1 {
    font-size: 3em;
    margin-bottom: 0.8em;
    color: #00ff00; /* Green highlight */
    text-shadow: 0 0 10px #00ff00;
}

.overlay p {
    margin-bottom: 0.8em;
    font-size: 1.1em;
    color: #bbb;
}

.overlay button {
    padding: 12px 25px;
    font-size: 1.5em;
    cursor: pointer;
    background-color: #00ff00;
    color: #000;
    border: 2px solid #00ff00;
    border-radius: 5px;
    transition: background-color 0.3s, color 0.3s;
    font-family: 'Press Start 2P', cursive;
}

.overlay button:hover {
    background-color: #00a000;
    border-color: #00a000;
    color: white;
}

#gameOverMessage {
    color: #ff0000; /* Red for Game Over */
    text-shadow: 0 0 10px #ff0000;
}

/* Utility class to hide elements */
.hidden {
    display: none;
}