body {
    background-color: rgb(0, 0, 0);
    color: rgb(0, 255, 0);
    font-family: monospace;
    text-align: center;
    padding: 20px;
}

h1 {
    font-size: 24px;
    margin-bottom: 10px;
}

p {
    font-size: 13px;
    color: rgb(170, 170, 170);
    margin: 4px;
}

#grid-container {
    display: grid;
    grid-template-columns: repeat(5, 50px);
    grid-template-rows: repeat(5, 50px);
    gap: 4px;
    margin: 20px auto;
    width: fit-content;
}

.cell {
    width: 50px;
    height: 50px;
    background-color: rgb(17, 17, 17);
    border: 2px solid rgb(0, 128, 0);
    cursor: pointer;
}

.cell.on {
    background-color: rgb(0, 255, 0);
}

button {
    font-family: monospace;
    font-size: 14px;
    margin: 5px;
    padding: 8px 16px;
    background-color: rgb(0, 0, 0);
    color: rgb(0, 255, 0);
    border: 2px solid rgb(0, 255, 0);
    cursor: pointer;
}

button:hover {
    background-color: rgb(0, 255, 0);
    color: rgb(0, 0, 0);
}

#test-output {
    font-size: 48px;
    margin: 20px;
}