/* ===== ORIGINAL STYLES (UNCHANGED) ===== */
body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    line-height: 1.6;
    color: #333;
}
.hero-section {
    background-color: #ff0000;
    color: white;
    text-align: center;
    padding: 50px 20px;
}
.hero-section h1 {
    font-size: 2.5em;
    margin-bottom: 20px;
}
.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
}
h2 {
    color: #b22222;
    font-size: 1.8em;
    margin-top: 20px;
}
p, ul {
    font-size: 1.1em;
}
ul {
    list-style-type: disc;
    margin-left: 20px;
}
.btn {
    display: inline-block;
    background-color: #b22222;
    color: white;
    padding: 10px 20px;
    text-decoration: none;
    border-radius: 5px;
    margin-top: 10px;
}
.btn:hover {
    background-color: #900;
}
.call-to-action {
    text-align: center;
    padding: 20px;
    background-color: #eee;
    margin-top: 20px;
}
footer {
    text-align: center;
    padding: 10px;
    background-color: #333;
    color: white;
    margin-top: 20px;
}
.source {
    font-size: 0.9em;
    color: #666;
}

/* ===== ADDED NAV STYLES (NEW) ===== */
.navbar {
    background: #111;
    padding: 10px 20px;
}
.navbar a {
    color: white;
    text-decoration: none;
    margin-right: 15px;
    font-weight: bold;
}
.navbar a:hover {
    text-decoration: underline;
}

/* ===== ADDED TOC STYLES (NEW) ===== */
.toc {
    border: 1px solid #ddd;
    border-radius: 6px;
    background: #fafafa;
    padding: 12px 16px;
    margin: 20px 0;
}
.toc ul {
    margin: 10px 0 0 20px;
}
.toc a {
    color: #b22222;
    text-decoration: none;
}
.toc a:hover {
    text-decoration: underline;
}