body {
    font-family: Arial, sans-serif;
    background-color: #f9f9f9;
    color: #333;
    margin: 0;
    padding: 0;
}

header {
    background-color: #008080;
    color: white;
    text-align: center;
    padding: 10px 0;
    position: relative;
}

.logo {
    width: 100px;
    height: auto;
}

header h1 {
    margin: 10px 0;
    font-size: 2.5em;
}

nav {
    display: flex;
    justify-content: center;
    background-color: #006666;
}

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

nav ul li {
    position: relative;
}

nav ul li a {
    display: block;
    padding: 15px 20px;
    text-decoration: none;
    color: white;
}

nav ul li a:hover {
    background-color: #004c4c;
}

main {
    padding: 20px;
}

.intro, .features, .screenshots-section {
    text-align: center;
    margin: 20px 0;
}

.download-button {
    display: inline-block;
    padding: 10px 20px;
    color: white;
    background-color: #008080;
    border: none;
    border-radius: 5px;
    text-decoration: none;
    margin: 10px;
}

.download-button:hover {
    background-color: #006666;
}

footer {
    background-color: #f1f1f1;
    text-align: center;
    padding: 10px 0;
    position: relative;
    width: 100%;
    bottom: 0;
}