body {
    font-family: 'Arial', sans-serif;
    height: 100vh;
    margin: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: #1a1a2e;
    color: #ffffff;
}

.game-container {
    text-align: center;
}

h1 {
    margin-bottom: 20px;
    font-size: 2.5em;
    color: #16db93;
    text-shadow: 2px 2px #0d0d0d;
}

.score-board {
    margin-bottom: 20px;
    display: flex;
    justify-content: space-around;
    font-size: 1.2em;
}

#game-board {
    display: grid;
    grid-template-columns: repeat(20, 20px);
    grid-template-rows: repeat(20, 20px);
    gap: 1px;
    border: 2px solid #16db93;
    background-color: #0d0d0d;
    box-shadow: 0 0 10px #16db93;
}

.cell {
    position: relative;
    width: 20px;
    height: 20px;
    background-color: #1a1a2e;
}

.wall {
    background-color: #0d0d0d;
}

.food {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 6px;
    height: 6px;
    transform: translate(-50%, -50%);
    background-color: #f0f3bd;
    border-radius: 50%;
}

.player {
    position: absolute;
    top: 2px;
    left: 2px;
    width: 16px;
    height: 16px;
}

.player {
    z-index: 10;
    background-color: #16db93;
    border-radius: 50%;
}

.player-cell {
    box-shadow: inset 0 0 10px 3px rgba(22, 219, 147, 0.7);
}

#start-button, #restart-button {
    margin-top: 20px;
    padding: 10px 20px;
    font-size: 1.2em;
    color: #ffffff;
    background-color: #16db93;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s;
}

#start-button:hover, #restart-button:hover {
    background-color: #13c27f;
}

#restart-button {
    display: none;
}