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

.header {
    background: #7b0000;
    color: #fff;
    text-align: center;
    padding: 25px 10px;
}

.hero {
    background: #000;
    color: #fff;
    text-align: center;
    padding: 70px 20px;
}

.btn {
    display: inline-block;
    margin-top: 15px;
    background: orange;
    color: #000;
    padding: 12px 25px;
    text-decoration: none;
    font-weight: bold;
}

.section {
    background: #fff;
    padding: 40px;
    margin: 20px;
}

.section.dark {
    background: #7b0000;
    color: #fff;
}

.section.dark h2 {
    color: orange;
}

h2 {
    color: #7b0000;
}

ul {
    padding-left: 20px;
}

footer {
    background: #222;
    color: #fff;
    text-align: center;
    padding: 15px;
}