* {
    box-sizing: border-box;
}

body {
    font-family: Arial, sans-serif;
    margin: 0;
    background-color: #f4f6f9;
    line-height: 1.6;
    overflow-x: hidden;
}

header {
    background-color: #0077cc;
    color: white;
    text-align: center;
    padding: 25px;
}

section {
    background: white;
    margin: 20px auto;
    padding: 20px;
    width: 90%;
    max-width: 900px;
    border-radius: 10px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

h2 {
    color: #0077cc;
    margin-bottom: 10px;
}

.screenshot {
    display: block;
    width: 100%;
    max-width: 100%;
    height: auto;
    margin: 15px auto;
    border-radius: 8px;
    border: 1px solid #ccc;
}

img {
    max-width: 100%;
    height: auto;
}

footer {
    text-align: center;
    padding: 15px;
    background-color: #222;
    color: white;
    margin-top: 20px;
}