body {
    background-color: #e0f7fa;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    color: #005b96;
    line-height: 1.6;
    margin: 0;
    padding: 0;
}

header {
    background-color: #00796b;
    color: white;
    text-align: center;
    padding: 10px 0;
}

nav a {
    color: #004d40;
    text-decoration: none;
    padding: 8px 16px;
    display: inline-block;
}

nav a:hover {
    background-color: #b2dfdb;
}

main {
    padding: 20px;
    max-width: 800px;
    margin: auto;
}

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

button {
    background-color: #00796b;
    color: white;
    border: none;
    padding: 10px 20px;
    cursor: pointer;
    border-radius: 5px;
}

button:hover {
    background-color: #004d40;
}