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

body {
    font-family: 'Arial', sans-serif;
    color: #333;
    background-color: #f0f0f0;
    line-height: 1.6;
    padding-bottom: 3rem;
    display: flex;
    flex-direction: column;
    align-items: center;
}

header, footer {
    width: 100%;
    background-color: #333;
    color: #fff;
    text-align: center;
    padding: 1rem 0;
}

footer {
    position: fixed;
    bottom: 0;
}

h1, h2 {
    margin: 1rem 0;
}

section {
    margin: 1rem;
    width: 90%;
    max-width: 1200px;
}

p {
    margin-bottom: 1rem;
}

a {
    color: #fff;
    background-color: #333;
    text-decoration: none;
    padding: 10px 20px;
    display: inline-block;
}

a.simple-link {
    background-color: transparent;
    color: #0000EE;
    padding: 0;
}

#screenshots img {
    width: 90%;
    max-width: 300px;
    margin: 10px auto;
}