body {
        font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
        display: flex;
        justify-content: center;
        align-items: center;
        flex-direction: column;
        background-color: #f0f2f5;
        color: #333;
    }
    #game-container {
        background-color: #fff;
        padding: 2rem;
        border-radius: 12px;
        box-shadow: 0 4px 12px rgba(0,0,0,0.1);
        width: 90%;
        max-width: 600px;
        text-align: center;
    }
    h1 {
        color: #1a237e;
    }
    #trailer-area {
        position: relative;
        height: 100px;
        margin-top: 20px;
        margin-bottom: 20px;
    }
    #trailer-deck {
        position: absolute;
        bottom: 40px;
        left: 0;
        width: 100%;
        height: 10px;
        background-color: #757575;
        border-radius: 5px;
    }
    #trailer-hitch {
        position: absolute;
        bottom: 40px;
        left: -20px; /* Extends past the deck */
        width: 20px;
        height: 10px;
        background-color: #424242;
    }
    #trailer-axle {
        position: absolute;
        bottom: 20px;
        left: 60%; /* Axle is at 60% from the front */
        width: 2px;
        height: 25px;
        background-color: #333;
    }
    #axle-wheels {
        position: absolute;
        bottom: 10px;
        left: calc(60% - 15px);
        width: 30px;
        height: 20px;
        background-color: #212121;
        border-radius: 5px;
    }
    #load-box {
        position: absolute;
        bottom: 50px; /* Sits on top of the deck */
        width: 25%; /* The load takes up 25% of the trailer length */
        height: 50px;
        background-color: rgba(21, 101, 192, 0.8);
        border: 2px solid #0d47a1;
        border-radius: 5px;
        cursor: pointer;
        /* Center the box based on its left position */
        transform: translateX(-50%);
    }
    #stats, #results {
        background-color: #e8eaf6;
        padding: 15px;
        border-radius: 8px;
        margin-top: 20px;
    }
    .slider-container {
        margin: 20px 0;
    }
    input[type="range"] {
        width: 100%;
    }
    button {
        background-color: #3949ab;
        color: white;
        border: none;
        padding: 12px 24px;
        font-size: 16px;
        border-radius: 8px;
        cursor: pointer;
        transition: background-color 0.3s;
        margin: 5px;
    }
    button:hover {
        background-color: #1a237e;
    }
    #result-message {
        font-size: 1.2rem;
        font-weight: bold;
        padding: 10px;
        border-radius: 5px;
        margin-top: 10px;
    }
    .success { color: #2e7d32; background-color: #c8e6c9; }
    .failure { color: #c62828; background-color: #ffcdd2; }