* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f4f4f4;
}

.container {
    width: 90%;
    margin: 0 auto;
    max-width: 1200px;
}

header {
    background: #004d6a;
    color: #fff;
    padding: 20px 0;
}

header h1 {
    font-size: 2.5em;
    text-align: center;
    margin-bottom: 20px;
}

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

nav ul li {
    margin: 0 15px;
}

nav ul li a {
    color: #fff;
    text-decoration: none;
    font-size: 1.1em;
    text-transform: uppercase;
}

nav ul li a:hover {
    color: #ffdd57;
}

.section {
    padding: 40px 0;
}

h2 {
    font-size: 2em;
    margin-bottom: 20px;
    color: #004d6a;
}

h3 {
    font-size: 1.7em;
    margin-top: 20px;
    color: #333;
}

h4 {
    font-size: 1.4em;
    margin-top: 15px;
    color: #333;
}

ul {
    list-style-type: disc;
    margin-left: 20px;
}

ul li {
    margin: 10px 0;
}

footer {
    background: #004d6a;
    color: #fff;
    text-align: center;
    padding: 20px 0;
    position: relative;
    bottom: 0;
    width: 100%;
}

@media (max-width: 768px) {
    header h1 {
        font-size: 2em;
    }

    nav ul {
        flex-direction: column;
        margin-top: 15px;
    }

    nav ul li {
        margin: 10px 0;
    }

    .section {
        padding: 20px 0;
    }

    h2, h3, h4 {
        font-size: 1.5em;
    }

    footer {
        font-size: 0.9em;
    }
}