body {
    background-color: #e0f7fa;
    font-family: Arial, sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
}

.container {
    text-align: center;
    background-color: #0288d1;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    color: #ffffff;
}

h1 {
    margin: 0 0 20px;
}

button {
    background-color: #0277bd;
    border: none;
    color: white;
    padding: 15px 32px;
    text-align: center;
    text-decoration: none;
    display: inline-block;
    font-size: 16px;
    margin: 10px 0;
    cursor: pointer;
    border-radius: 5px;
}

button:hover {
    background-color: #01579b;
}

#result {
    margin-top: 20px;
    font-size: 24px;
    font-weight: bold;
}