body {
    font-family: Arial, sans-serif;
    background-color: #f5f5f5;
}

.container {
    max-width: 350px;
    margin: 50px auto;
    padding: 20px;
    background-color: #fff;
    border-radius: 5px;
    box-shadow: 0 2px 7px rgba(0, 0, 0, 0.1);
}

form {
    display: flex;
    flex-direction: column;
}

label {
    margin-bottom: 9px;
}

input {
    padding: 8px;
    font-size: 16px;
    border: 1px solid #ccc;
    border-radius: 4px;
    margin-bottom: 16px;
}

button {
    background-color: #007bff;
    color: #fff;
    padding: 10px 20px;
    font-size: 16px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

button:hover {
    background-color: #0069d9;
}

#result {
    margin-top: 20px;
    font-weight: bold;
}