/* General */
body {
    font-family: Arial, sans-serif;
    background-color: #f4f4f4;
    margin: 0;
}

/* Header */
header {
    background-color: #333;
    color: white;
    padding: 20px;
    text-align: center;
}

/* Navigation */
nav {
    margin-top: 10px;
}

nav a {
    color: white;
    text-decoration: none;
    margin: 10px;
    font-weight: bold;
}

nav a:hover {
    color: #ffcc00;
}

/* Main content */
main {
    padding: 20px;
}

/* Sections */
h2 {
    color: #333;
    border-bottom: 2px solid #ccc;
    padding-bottom: 5px;
}

/* Paragraphs */
p {
    font-size: 1rem;
    line-height: 1.6;
}

/* Lists */
ul {
    list-style-type: square;
}

ol {
    list-style-type: decimal;
}

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

/* Back to top link */
footer a {
    color: #ffcc00;
    text-decoration: none;
}

/* Text shadow (required) */
h1 {
    text-shadow: 2px 2px 5px gray;
}