body {
    font-family: 'Open Sans', sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 0;
    background-color: #e0f7fa;
    color: #333;
}

header {
    background: #0288d1;
    color: #fff;
    padding: 20px 0;
    text-align: center;
}

header h1 {
    margin: 0;
}

nav ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    justify-content: center;
}

nav ul li {
    margin: 0 15px;
}

nav ul li a {
    color: #fff;
    text-decoration: none;
    font-weight: bold;
}

nav ul li a:hover {
    text-decoration: underline;
}

main {
    padding: 20px;
}

h2 {
    color: #0288d1;
}

ul {
    list-style: none;
    padding: 0;
}

ul li {
    background: #b3e5fc;
    margin-bottom: 10px;
    padding: 10px;
    border: 1px solid #0288d1;
    border-radius: 5px;
}

form {
    max-width: 600px;
    margin: 20px auto;
    background: #b3e5fc;
    padding: 20px;
    border: 1px solid #0288d1;
    border-radius: 5px;
}

form label {
    display: block;
    margin-bottom: 5px;
    color: #0288d1;
}

form input, form textarea {
    width: 100%;
    padding: 10px;
    margin-bottom: 10px;
    border: 1px solid #0288d1;
    border-radius: 5px;
}

form button {
    background: #0288d1;
    color: #fff;
    padding: 10px;
    border: 0;
    cursor: pointer;
    border-radius: 5px;
    font-size: 16px;
}

form button:hover {
    background: #0277bd;
}

footer {
    background: #0288d1;
    color: #fff;
    text-align: center;
    padding: 5px 0;
    position: fixed;
    bottom: 0;
    width: 100%;
}

.center-image {
    display: block;
    margin-left: auto;
    margin-right: auto;
    max-width: 80%;
}