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

body {
    font-family: Arial, sans-serif;
}

.container {
    width: 80%;
    margin: auto;
}

header {
    background: #333;
    color: #fff;
    padding: 20px 0;
}

header nav ul {
    list-style: none;
}

header nav ul li {
    display: inline;
    margin-right: 20px;
}

header nav ul li a {
    color: #fff;
    text-decoration: none;
}

#hero {
    background: #f4f4f4;
    text-align: center;
    padding: 100px 0;
}

#hero h2 {
    margin-bottom: 20px;
}

.btn {
    display: inline-block;
    background: #333;
    color: #fff;
    padding: 10px 20px;
    text-decoration: none;
    border-radius: 5px;
}

.btn:hover {
    background: #444;
}

section {
    padding: 50px 0;
    text-align: center;
}

section h2 {
    margin-bottom: 20px;
}

section ul {
    list-style: none;
}

footer {
    background: #333;
    color: #fff;
    text-align: center;
    padding: 20px 0;
}