body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #e6f7ff;
}

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

.navbar {
    background-color: #007399;
    color: white;
    padding: 10px;
    text-align: center;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.navbar a {
    font-size: 1.1em;
    font-weight: bold;
    margin: 0 15px;
    padding: 8px;
    background-color: #289ac0;
}

.navbar a:hover {
    background-color: #004d66;
}

button {
    padding: 15px 25px;
    font-size: 1.2em;
    font-weight: bold;
    background-color: #007399;
}

button:hover {
    background-color: #004d66;
}

.footer {
    background-color: #003f5c;
    color: white;
    text-align: center;
    padding: 10px;
    position: absolute;
    bottom: 0;
    width: 100%;
}

a {
    color: #003f5c;
    text-decoration: none;
}

a:hover {
    color: #007399;
}

h1 {
    color: #004d66;
}

p {
    color: #005580;
}

.product-link {
    display: block;
    padding: 10px;
    margin: 10px 0;
    background-color: #cceeff;
    border-radius: 3px;
    transition: background-color 0.3s;
}

.product-link:hover {
    background-color: #99ddff;
}