body {
    font-family: 'Roboto', sans-serif;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100vh;
    background-color: #f0f4f8;
}

h1 {
    color: #333;
    margin-bottom: 20px;
    font-size: 2em;
}

form {
    display: flex;
    flex-direction: column;
    background-color: #ffffff;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

label {
    margin-top: 10px;
    font-weight: bold;
    color: #444;
}

input {
    margin-top: 5px;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 1em;
}

button {
    margin-top: 20px;
    padding: 10px;
    border: none;
    border-radius: 5px;
    background-color: #007bff;
    color: #ffffff;
    font-size: 1em;
    cursor: pointer;
    transition: background-color 0.3s;
}

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

#result {
    margin-top: 20px;
    font-size: 1.5em;
    color: #007bff;
    font-weight: bold;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

form, #result {
    animation: fadeIn 1s ease-in-out;
}