body { 
    font-family: Verdana; 
    margin: 0; 
    padding: 0; 
    background: #f8f9fa; 
}
header { 
    background: #004d40; 
    color: white; 
    padding: 15px; 
    text-align: center;
}
nav button { 
    margin: 5px; 
    padding: 10px 15px; 
    background: green; 
    color: white; 
    border: none; 
    cursor: pointer; 
}
nav button:hover { 
    background: #2196f3; 
}
h1 { 
    color: #004d40; 
    text-align: center; 
    margin-top: 30px;
}
form {
    background: white; 
    max-width: 400px; 
    margin: 20px auto; 
    padding: 20px; 
    border-radius: 8px; 
    box-shadow: 0 0 5px gray; 
}

label {
    display: block;
    margin-bottom: 5px;
    color: #333;
    text-align: left;
}

input[type="text"], input[type="email"] {
    width: 100%;
    padding: 8px;
    margin-bottom: 15px;
    border: 1px solid #ccc;
    border-radius: 4px;
}

footer { 
    background: #004d40; 
    color: white; 
    text-align: center; 
    padding: 10px; 
    position: fixed;
    width: 100%;
    bottom: 0;
}

.logo { 
    width: 100%; 
    max-width: 100px; 
    display: block; 
    margin: auto; 
}
@media (max-width: 600px) {
    nav {
        flex-direction: column;
    }

    nav button {
        width: 90%;
    }

    form {
        width: 90%;
    }
}