body {
        display: flex;
        justify-content: center;
        align-items: center;
        height: 100vh;
        margin: 0;
        overflow: auto;
        background-color: #2E3440;
        color: #D8DEE9;
    }

    .board {
        display: grid;
        grid-template-columns: repeat(100, 8px);
        grid-gap: 1px;
        background-color: #3B4252;
    }

    .cell {
        width: 8px;
        height: 8px;
        background-color: #434C5E;
    }

    .cell.alive {
        background-color: #D8DEE9;
    }

    .controls {
        text-align: center;
        margin-top: 10px;
    }

    button {
        background-color: #4C566A;
        color: #D8DEE9;
        border: none;
        padding: 10px;
        margin: 5px;
        border-radius: 5px;
        cursor: pointer;
        transition: background-color 0.3s ease;
    }

    button:hover {
        background-color: #434C5E;
    }

    input[type="range"] {
        -webkit-appearance: none;
        width: 100%;
        margin: 5px 0;
    }

    input[type="range"]:focus {
        outline: none;
    }

    input[type="range"]::-webkit-slider-runnable-track {
        background: #4C566A;
        border: none;
        border-radius: 3px;
        height: 8px;
    }

    input[type="range"]::-webkit-slider-thumb {
        -webkit-appearance: none;
        border: none;
        height: 16px;
        width: 16px;
        border-radius: 50%;
        background: #D8DEE9;
        margin-top: -4px;
    }