body {
    font-family: Arial, sans-serif;
    background-color: #f4f4f4;
    margin: 0;
    padding: 0;
}

.container {
    max-width: 600px;
    margin: 50px auto;
    padding: 20px;
    background-color: #fff;
    border-radius: 5px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

h1 {
    text-align: center;
    margin-bottom: 20px;
}

.input-group {
    margin-bottom: 10px;
}

label {
    display: inline-block;
    width: 120px;
}

input[type="number"] {
    width: 100px;
    padding: 5px;
    border-radius: 3px;
    border: 1px solid #ccc;
}

button {
    display: block;
    margin: 20px auto;
    padding: 10px 20px;
    background-color: #007bff;
    color: #fff;
    border: none;
    border-radius: 3px;
    cursor: pointer;
}

#result {
    text-align: center;
    font-weight: bold;
    margin-bottom: 20px;
}

#graph-container {
    text-align: center;
}

#graph {
    max-width: 100%;
    height: auto;
    border: 1px solid #ccc;
}