body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 0;
    background-color: #f4f4f4;
}

header {
    background: #333;
    color: #fff;
    padding: 10px 0;
    text-align: center;
}

header h1 {
    margin: 0;
}

main {
    padding: 20px;
}

.intro,
.steps,
.tips,
.contact {
    background: #fff;
    padding: 20px;
    margin: 0 0 20px;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

h2 {
    color: #333;
}

ol {
    padding-left: 20px;
}

li {
    margin-bottom: 10px;
}

ul {
    padding-left: 20px;
}

footer {
    background: #333;
    color: #fff;
    text-align: center;
    padding: 10px 0;
    position: fixed;
    width: 100%;
    bottom: 0;
}