body {
    background-color: #282C34;
    color: #61DAFB;
    font-family: Arial, Helvetica, sans-serif;
    text-align: center;
    padding-top: 40px;
}

.container {
    margin: auto;
    max-width: 400px;
}

#grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
    margin-top: 20px;
}

button {
    font-size: 2em;
    padding: 20px;
    cursor: pointer;
    background: #20232A;
    border: 2px solid #61DAFB;
    color: #61DAFB;
    border-radius: 8px;
    transition: background 0.2s, color 0.2s;
}

button:hover {
    background: #61DAFB;
    color: #20232A;
}

#feedback {
    font-size: 1.5em;
    margin-top: 15px;
}