body {
    font-family: 'Roboto', sans-serif;
    background-color: #f0f0f0;
    margin: 0;
    padding: 0;
}

.container {
    width: 80%;
    margin: auto;
    padding: 20px;
    background-color: #fff;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    border-radius: 8px;
}

h1 {
    text-align: center;
    color: #333;
}

.input-section {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 20px;
}

label {
    margin-bottom: 5px;
    color: #555;
}

input {
    padding: 10px;
    font-size: 1em;
    border: 1px solid #ccc;
    border-radius: 4px;
}

button {
    padding: 10px;
    font-size: 1em;
    background-color: #007BFF;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.3s;
}

button:hover {
    background-color: #0056b3;
}

.visualization {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(50px, 1fr));
    gap: 2px;
    border: 1px solid #ccc;
    margin-top: 20px;
    padding: 10px;
    background-color: #fafafa;
    border-radius: 8px;
}