body {
    margin: 0;
    overflow: hidden;
    background-color: #7ec0ee; /* Water color */
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}

#game-arena {
    position: relative;
    width: 100%;
    height: 100%;
    /* Optional: Set a max width/height or aspect ratio */
    /* max-width: 1200px; */
    /* max-height: 800px; */
    /* background-color: rgba(0, 0, 255, 0.1); /* Visual boundary */ */
}

.fish {
    position: absolute;
    /* transform is handled by JS for positioning and scaling */
    /* transform-origin: 50% 50%; /* Center of the SVG */ */
}

.player-fish {
    fill: gold; /* Player color */
}

.ai-fish {
    /* Fill color is set by JS */
}

#score {
    position: absolute;
    top: 10px;
    left: 10px;
    font-size: 1.5em;
    color: white;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
    z-index: 10;
    pointer-events: none; /* Allow mouse events to pass through */
}

#game-over {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 3em;
    color: red;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
    z-index: 10;
    text-align: center;
    pointer-events: none; /* Allow mouse events to pass through */
}

.hidden {
    display: none;
}