body {
    font-family: Arial, sans-serif;
    background-color: #f9f9f9;
    margin: 0;
}

header {
    background-color: green;
    color: white;
    padding: 15px;
    text-align: center;
}

.logo {
    height: 60px;
}

main {
    padding: 20px;
}

footer {
    background-color: green;
    color: white;
    text-align: center;
    padding: 10px;
    position: fixed;
    width: 100%;
    bottom: 0;
}

.form-container, .result-container {
    background: white;
    padding: 20px;
    max-width: 500px;
    margin: auto;
    text-align: center;
    border-radius: 10px;
    box-shadow: 0px 0px 10px #ccc;
}

input, button {
    padding: 10px;
    margin: 10px 0;
    width: 80%;
}

button {
    background-color: green;
    color: white;
    border: none;
    cursor: pointer;
}

.error {
    color: red;
}