body {
    font-family: Arial, sans-serif;
    background-color: #51dde9; /* Background color of the entire page */
    color: #333333;
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}

h1 {
    color: #2c3e50;
    text-align: center;
    margin-bottom: 20px;
}

.container {
    background-color: #ffffff; /* Background color of the container */
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
    padding: 20px;
    width: 100%;
    max-width: 400px;
}

label {
    display: block;
    margin-bottom: 8px;
    font-weight: bold;
}

select, input {
    width: 100%;
    padding: 10px;
    margin-bottom: 15px;
    border: 1px solid #dddddd;
    border-radius: 4px;
    box-sizing: border-box;
}

button {
    background-color: #3498db;
    color: #ffffff;
    border: none;
    padding: 10px 20px;
    border-radius: 4px;
    cursor: pointer;
    width: 100%;
    font-size: 16px;
}

button:hover {
    background-color: #2980b9;
}

#result {
    margin-top: 20px;
    font-size: 18px;
    font-weight: bold;
    color: #27ae60;
}